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BrowseInterestsStay InformedCareerPersonal GrowthFiction & BiographiesHealth & FitnessLifestyleCultureBrowse byBooksAudiobooksNews & MagazinesSheet MusicBrowse allUploadSign inJoinNEGATIVE ISOLATION ROOM STANDARDSCLEVELAND CLINIC
Cleveland Clinic Main Campus 9500 Euclid Avenue Cleveland, Ohio 44195
April 12, 2010 HFL File No. 2009-0281.01
NEGATIVE ISOLATION ROOM STANDARDS
Page Purpose ............................................................................................. 1 General Overview................................................................................. 1 Summary of General Isolation Room Design Requirements ............................... 2 Specific Design Issues………………………………………………………………………….2 Appendices APPENDIX A - Schematic Diagram for Negative Isolation Room Configuration APPENDIX B - Architectural Specifications APPENDIX C - Mechanical Specifications APPENDIX D - Electrical Specifications
This document was developed for Cleveland Clinic to provide a standard basis of design for all negative isolation rooms. Detailed information including specifications is provided in this document. Any variation from this standard shall be submitted and reviewed with Cleveland Clinic Facilities and Engineering Group. This document is intended to be used for design of all isolation rooms at Cleveland Clinic.
Negative air pressure rooms shall be designed in accordance with the most recent edition of the Guidelines for Design and Construction of Health Care Facilities (currently 2010), Center for Disease Control and American Society for Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE) standards. These guidelines and standards provide a safe environment for hospital staff treating patients that require an airborne infection isolation room, as well as protecting the surrounding patients, general public, and staff outside the airborne infection isolation rooms. In addition to the minimum criteria, other "architectural" recommendations of an isolation room are needed. Features that make a room "airtight" are door sweeps, caulking windows, gasketed lighting fixtures, gasketed ceiling tiles (or solid ceilings), gasketed medical gas, electrical and data outlets, and sealing "unseen" holes and penetrations behind casework and in the walls above the ceiling. These room construction items greatly affect the ability to maintain room static pressure. Mechanical system features include room pressurization monitors connected to the Building Automation System (BAS) and redundant exhaust fans. A connection to the BAS from the isolation room monitors alerts the engineering staff to problems which may be able to be fixed from the BAS computer. It also allows the staff to be proactive and identify problems before they cause alarms. This BAS feature automatically tracks and monitors the room pressures and can provide printouts for inspectors wishing to check for room pressure compliance. A redundant exhaust fan will allow the isolation rooms to stay in operation upon a failure of one fan or for maintenance. HEPA filters are required. HEPA filters may not be required if the fans are at the top of the building but this issue must be reviewed and approved by Facilities Engineering. All operations and maintenance personnel will need training in the use and maintenance of the isolation rooms. Site specific programming, alarms, procedures and maintenance schedules will need to be established along with updating or creating new operational procedures. The commissioning, training, and start-up will be done during and at the end of the project.
SUMMARY OF GENERAL ISOLATION ROOM DESIGN REQUIREMENTS
The isolation room design requirements are established based on Healthcare Design Construction Guidelines (2010 Version). Air terminal boxes shall have reheat coils. Room is sealed (ceilings. Other specifications sections shall be provided as required for the project. Fans shall be Loren Cook and shall be direct drive. Minimum pressure differential of 0. Pressure monitors shall be Siemens or TSI. Air terminal devices shall be Naylor. Variable frequency drives shall be ABB. Provide redundant fan systems with bypass. CDC Guidelines. 5. These items are on the schematic or in the specifications and are highlighted below for emphasis. a.
. 3. The specifications in the appendices are for reference and shall be incorporated into the project specifications. Minimum of 12 total room air changes (design for 15 total room air changes) c. 4. No positive/negative switch allowed k. 7.02" d. Exhaust fan on emergency power i. 2. Self-closing devices on doors g.) l. 6. Exhaust air discharged through HEPA filters if fan is below roof line h. Exhaust grille located in the ceiling and near the head of the bed j. The bypass may be excluded if field conditions do not permit a side-by-side installation. Provide Photohelic gages with the pre and HEPA filter sections. All air exhausted to the outdoors e. No gravity type heating devices except radiant panels
Cleveland Clinic requires specific items for the isolation room systems. and ASHRAE standards. Deviation from these items must be approved by the Cleveland Clinic. etc. 1. Minimum of 2 outside air changes b. Visual Monitoring of airflow f. light fixtures.
1. Other Manufacturers: Door seals of the same type and function.03
B. 2. surface mount type. PRODUCTS MANUFACTURERS A. 1. handle and install hardware in accordance with recommendations to prevent damage.02 A. Package each item of hardware. MATERIALS AND COMPONENTS A.1 DOOR SEALS
GENERAL SCOPE Finish door seals for existing doors. Included is: 1.
2. mill finish aluminum with vinyl insert. Furnish all door seals of a specific item from only one manufacturer. complete with all necessary screws and instructions. Door Sweep: NGP 100V. Store.01
B. Location: Manual swing doors.01 A. All numbers and symbols used in the preparation of the following schedule have been taken from the current catalogs of NATIONAL GUARD (NGP) and MD BUILDING PRODUCTS. Door sweeps on swing doors.02
Cleveland Clinic Isolation Room Upgrades
08 71 05 .
1.SECTION 08 71 05 DOOR SEALS
PART 1 1. approved by Architect.
SUBMITTALS Product Data Sheets: Submit copies of manufacturer's catalog cut sheets for every item that is specified. STORAGE AND HANDLING A. DELIVERY. and as manufactured by PEMKO or REESE may be bid.
PART 2 2. Jamb and head seals on existing doors. soiling and deterioration.
EXECUTION INSTALLATION Install door seal items in compliance with manufacturer's instructions. Adjust and as required for proper installation and operation. head or bottom of existing doors.2 DOOR SEALS
Perimeter Seals: MD BUILDING PRODUCTS 5/16 x 23/64 All Climate Weatherstrip D Strip. EPDM cellular rubber.01 A.B. self-adhering type. Location: Jambs.
PART 3 3. 1.
Fire Hazard Classification: Provide acoustical materials which have been UL tested. listed and labeled Class 0-25. Include recommendations for cleaning and refinishing acoustical units and precautions against materials and methods that may be detrimental to finishes and acoustical performances. Submit manufacturer's written instructions for recommended maintenance practices for each type of acoustical ceiling system required. Submit manufacturer's product data and installation instructions for each type of acoustical material and suspension system required. CISCA: Ceilings and Interior Systems Contractors Association.1 ACOUSTICAL PANEL CEILINGS
GENERAL WORK INCLUDED Provide acoustical lay-in panel ceiling system as shown and specified. 2. 2.
B. QUALITY ASSURANCE Workmanship: Comply with Ceilings & Interior Systems Contractors Association (CISCA) Code of Practices.
C.01 A. Provide full size units. 1. in properly labeled unopened or resealed boxes. when tested in accordance with ASTM E84. ASTM: American Society for Testing and Materials. Maintenance Materials: Provide 2% each type and color of acoustical material supplied for replacement and maintenance purposes.
SUBMITTALS Product Data 1.
C.03 A.
09 51 13 .02 A. Installation: Performed by an experienced authorized installer approved by acoustical material manufacturer.
1. they shall refer to the corresponding standards.SECTION 09 51 13 ACOUSTICAL PANEL CEILINGS
PART 1 1. Reference Standards: Wherever the following abbreviations are used herein. Class A flame spread rating in accordance with ASTM E1264 requirements.
Certification: Submit manufacturer's certification of acoustical units fire hazard classification rating and performance requirements.
D. 1. matching units installed.
Exposed "Tee" Grid System 1. CAC 40. Examine substrates. GYPSUM are acceptable.04 A.
2. prestretched not less than 12 gauge. with manufacturer's labels indicating brand name. Provide systems adequate to support light fixtures. c.1. soft temper. Maximum deflection 1/360 of the span. Store materials in original protective packaging to prevent soiling. 24” x 48”. legible and intact. Comply with ASTM C635. and other normal accessories. Type of System: Direct Hung. ceiling diffusers. D. structure and installation conditions. physical damage or wetting. d. Attachment Devices: Size for five times design load indicated in ASTM C635.
PART 3 3. 3.2 ACOUSTICAL PANEL CEILINGS
. PRODUCTS SUSPENSION SYSTEM A. light reflectance LR-. Edge Moldings: Extruded aluminum to match main beams and cross tees.02 A.01
09 51 13 .01
2. EXECUTION INSPECTION A. b.
B. Do not proceed with acoustical ceiling systems work until unsatisfactory conditions have been corrected. Do not begin installation until sufficient materials to complete a room are received. Structural Class: Intermediate duty. Equal products by CELOTEX or U. thickness and fire rating as applicable. STORAGE AND HANDLING Deliver materials in original. Model and Manufacturer: ARMSTRONG Clean Room Grid System or equal by DONN (USG INTERIORS) or CHICAGO METALLIC
B. PART 2 2. 15/16” exposed face.S.
ACOUSTICAL UNITS Acceptable Manufacturers: The following models listed are by ARMSTRONG.80 with white vinyl facing. Table 1 direct hung. All components of interlocking system from one manufacturer. Description: Extruded aluminum with factory applied white PVC face. Panel: #870 Clean Room VL Unperforated – Class 5 (Class 100). unopened protective packaging. a.
C. Store cartons open at each end to stabilize moisture content and temperature.
PRODUCT DELIVERY. Hanger Wires: ASTM A641 galvanized carbon steel. pattern size.
Coordinate with ceiling layout on drawings. 1.
Acoustical Units 1.
B.02 A. b.
2. Wall Molding a. Avoid use of less than half widths units at borders. Miter trim corners to provide tight. maximum deflection of 1/360 of span and maximum surface leveling tolerance 1/8" in 12'-0". heating or plumbing lines or any other utility lines. a. Do not proceed until approved by Architect. Support all four corners of suspension systems at fluorescent light fixtures.
Installation constitutes acceptance of existing conditions and responsibility for satisfactory performance. C. in uniform plane. Install acoustical lay-in panels level. leveling with ceiling suspension system to tolerance of 1/8" in 12'-0". Connect moldings to substrate at intervals not over 16" on center and not more than 3" from ends. INSTALLATION
3. Each utility and the ceiling suspension system shall be a separate installation and each shall be independently supported from the building structure.03 A.3 ACOUSTICAL PANEL CEILINGS
. with joints snug and square and panels free from damage or soiling. Notify Architect of discrepancies between ceiling layout on drawings and ceiling layout proposed. Use maximum lengths. Hangers: Ceiling suspension systems shall not be supported from ductwork. Rough Suspension 1.
Measure each ceiling area and establish layout of acoustical units to balance border widths at opposite edges of each ceiling. Coordinate suspension systems grid layout with electrical lighting fixture lay-out and installation.
09 51 13 . employ trapeze hangers or supports to avoid interferences with appurtenances requiring servicing. accurate joint. Fit border units accurately at borders and penetrations. Where interferences occur. Connect moldings securely to substrate surfaces. Provide edge trim molding at perimeter of acoustical ceiling installation and intermediate vertical surfaces. PREPARATION
3. electrical conduit.
Suspension System: Comply with ASTM C636 requirements and be water or laser leveled.
clean soiled or discolored surfaces of acoustical units and exposed suspension members.04 A. Adjust all sags and twists which develop in ceiling systems. Remove and replace units which are improperly installed and damaged units which cannot be successfully cleaned and repaired to eliminate evidence of damage.3.
CLEANING After installation.
09 51 13 . Comply with manufacturer's recommendations for cleaning and touch-up of minor finish damage.
B.4 ACOUSTICAL PANEL CEILINGS
Testing and adjusting requirements unique to particular systems and equipment are included in the Sections that specify those systems and equipment.
Testing and balancing work shall be performed by Kahoe Air Balance. ADJUSTING. SUMMARY This Section includes testing. adjusting. ADJUSTING. AND BALANCING FOR HVAC PART 1 . including submains. Variable-air-volume systems. RELATED DOCUMENTS Drawings and general provisions of the Contract. Smoke-control systems testing and adjusting. B. & BALANCING FOR HVAC
. and terminals.GENERAL 1. Air Systems: a. Existing systems TAB. 1. 2. 9.
Related Sections include the following: 1. branches. and balancing HVAC systems to produce design objectives. Space pressurization testing and adjusting. B.SECTION 230593 . Field quality-control testing to verify that workmanship quality for system and equipment installation is specified in system and equipment Sections. Supplementary Conditions. including the following: 1.3 A. according to design quantities.
Hydronic Piping Systems: a.
HVAC equipment quantitative-performance settings. 5. Verifying that automatic control devices are functioning properly. Variable-flow systems. apply to this Section. such as to reduce fan speed or adjust a damper. including General and
Cleveland Clinic Isolation Rooms Upgrade
23 05 93 .2 A. 8. 7. Reporting results of activities and procedures specified in this Section.1 TESTING. Indoor-air quality measuring. 4. DEFINITIONS Adjust: To regulate fluid flow rate and air patterns at the terminal equipment.1 A.TESTING. 2. Balance: To proportion flows within the distribution system.
adjusting. such as fluid or air. F.
Draft: A current of air. L. submit 2 copies of the testing. and balancing strategies and stepby-step procedures as specified in Part 3 "Preparation" Article below. & BALANCING FOR HVAC
D. and balancing Agent. enters or leaves the distribution system. M. Strategies and Procedures Plan: Within 60 days from the Contractor's Notice to Proceed. submit 2 copies of evidence that the testing.2 TESTING. Adjusting.
. SUBMITTALS Quality-Assurance Submittals: Within 30 days from the Contractor's Notice to Proceed. J. Report Forms: Test data sheets for recording test data in logical order.C.
H. Adjusting. System Effect Factors: Allowances used to calculate a reduction of the performance ratings of a fan when installed under conditions different from those presented when the fan was performance tested.
C. or direction of airflow. AMCA: Air Movement and Control Association. Testing. N. SMACNA: Sheet Metal and Air Conditioning Contractors' National Association. 23 05 93 . 1. adjusting. System Effect: A phenomenon that can create undesired or unpredicted conditions that cause reduced capacities in all or part of a system. low ambient temperature. as specified in this Section. whereby more heat is withdrawn from a person's skin than is normally dissipated. Certified Testing. on approved forms certified by the testing. and balancing team members meet the qualifications specified in the "Quality Assurance" Article below. Contract Documents Examination Report: Within 45 days from the Contractor's Notice to Proceed.
D. adjusting. adjusting. Test: A procedure to determine quantitative performance of a system or equipment. Terminal: A point where the controlled medium. G. and balancing procedures. AABC: Associated Air Balance Council.4 A. and balancing Agent and this Project's testing. ADJUSTING. I. Include a complete set of report forms intended for use on this Project. submit 2 copies of the Contract Documents review report as specified in Part 3 of this Section. Procedure: An approach to and execution of a sequence of work operations to yield repeatable results. E. when referring to localized effect caused by one or more factors of high air velocity. K. and Balancing Agent: The entity responsible for performing and reporting the testing. and Balancing Reports: Submit 2 copies of reports prepared. NEBB: National Environmental Balancing Bureau.
and balancing strategies and procedures plan to develop a mutual understanding of the details. Review field data reports to validate accuracy of data and to prepare certified testing. Adjusting. Adjusting. Provide 7 days' advance notice of scheduled meeting time and location. Work schedule and Project site access requirements. Testing. Coordination and cooperation of trades and subcontractors. Adjusting. Agenda Items: Include at least the following: a." Section II. adjusting. F. and Balancing Conference: Meet with the Owner's and the Architect’s representatives on approval of the testing. Submittal distribution requirements. and balancing team complied with the approved testing. and Balancing Reports: Certify the testing.
Sample Report Forms: report forms. Adjusting. This certification includes the following: 1. and other support personnel.3 TESTING. and Balancing of Environmental Systems. b.
Certification of Testing. adjusting. ADJUSTING. equipment manufacturers' authorized service representatives. Certify that the testing. 1. and Accuracy: As described in AABC national standards or in NEBB's "Procedural Standards for Testing. adjusting. Warranty: below.
F. Ensure the participation of testing. and Balancing of Environmental Systems. and balancing agent certified by either AABC or NEBB. adjusting. Quantity. ATC System Installer. adjusting. and balancing plan.5 A.
QUALITY ASSURANCE Agent Qualifications: Engage a testing. f. "Required Instrumentation for NEBB Certification. e.
B. Adjusting. c. d. and balancing
Submit 2 copies of special warranty specified in the "Warranty" Article
Submit 2 sets of sample testing. and Balancing Reports: Use standard forms from AABC's "National Standards for Testing. Testing. & BALANCING FOR HVAC
. Contract Documents examination report. adjusting.
23 05 93 . Adjusting. Agent shall function as a subcontractor responsible to the HVAC Contractor. Coordination of documentation and communication flow.E. and balancing plan and the procedures specified and referenced in this Specification. 2. and Balancing" or from NEBB's "Procedural Standards for Testing.
C." Instrumentation Calibration: Calibrate instruments at least every 6 months or more frequently if required by the instrument manufacturer. adjusting." Instrumentation Type. and balancing field data reports. and balancing reports. adjusting. and balancing team members.
Testing. adjusting.
The certified Agent has tested and balanced systems according to the Contract Documents. C.
B. and balancing activities. Include scheduled test dates and times.
23 05 93 .4 TESTING. and balancing Agent fails to comply with the Contract Documents.PRODUCTS (Not Applicable) PART 3 . and balancing period. other warranties made by the Contractor under requirements of the Contract Documents. adjusting. COORDINATION Coordinate the efforts of factory-authorized service representatives for systems and equipment. & BALANCING FOR HVAC
.1.8 A. Systems are balanced to optimum performance capabilities within design and installation limits. Notice: Provide 7 days' advance notice for each test. adjusting. and balancing of systems and equipment.
1.EXECUTION 3. adjusting.6 A. and balancing after leakage and pressure tests on air and water distribution systems have been satisfactorily completed. ATC System Installer. ADJUSTING. WARRANTY General Warranty: The national project performance guarantee specified in this Article shall not deprive the Owner of other rights the Owner may have under other provisions of the Contract Documents and shall be in addition to. and run concurrent with. adjusting. Project Performance Guarantee: Provide a guarantee on AABC'S "National Standards" forms or on NEBB forms stating that AABC or NEBB will assist in completing the requirements of the Contract Documents if the testing. Perform testing. 2.7 A. Guarantee includes the following provisions: 1.
PART 2 . EXAMINATION Examine Contract Documents to become familiar with project requirements and to discover conditions in systems' designs that may preclude proper testing.
B. Cooperate with the Owner during testing.
PROJECT CONDITIONS Full Owner Occupancy: The Owner will occupy the site and existing building during the entire testing. and other mechanics to operate HVAC systems and equipment to support and assist testing.
1. and balancing operations to minimize conflicts with the Owner's operations.1 A. adjusting. adjusting.
are properly installed. ADJUSTING." Sections 7 through 10. 7. Examine equipment for installation and for properly operating safety interlocks and controls. including fan curves.
Examine approved submittal data of HVAC systems and equipment. Sequence of operation for control modes is according to the Contract Documents. 6. 4. adjusting. I. are required by the Contract Documents. 5. Dampers and valves are in the position indicated by the controller." Sections 5 and 6. Calculate system effect factors to reduce the performance ratings of HVAC equipment when installed under conditions different from those presented when the equipment was performance tested at the factory. Relate performance data to project conditions and requirements. valves.
E. & BALANCING FOR HVAC
. such as balancing valves and manual volume dampers. such as balancing valves and manual volume dampers. and cold walls. use tables and charts found in AMCA 201. Examine HVAC system and equipment installations to verify that indicated balancing devices. Verify that quantities and locations of these balancing devices are accessible and appropriate for effective balancing and for efficient system and equipment operation.
D. Sensors are located to sense only the intended conditions. Examine terminal units to verify that they are accessible and their controls are connected and functioning. including system effects that can create undesired or unpredicted conditions that cause reduced capacities in all or part of a system. Dampers. To calculate system effects for air systems. or in SMACNA's "HVAC Systems--Duct Design. H. and commissioning specified in individual Specification Sections have been performed. Integrity of valves and dampers for free and full operation and for tightness of fully closed and fully open positions.
B. Automatic modulating control valves are properly connected. cleaning. drafts. Examine system and equipment installations to verify that they are complete and that testing.
G. Compare this data with the design data and installed conditions. Thermostats are located to avoid adverse effects of sunlight. Examine equipment performance data.
Verify that balancing devices.5 TESTING. J. 3. "Fans and Systems. and their locations are accessible and appropriate for effective balancing and for efficient system and equipment operation. and other controlled devices operate by the intended controller.1. Examine automatic temperature system components to verify the following: 1. Examine system and equipment test reports. 2. F. C.
23 05 93 . Examine systems for functional deficiencies that cannot be corrected by adjusting and balancing.
clean. and free of air. B. Restore vapor barrier and finish according to the insulation Specifications for this Project. K. to show final settings. Ceilings are installed in critical areas where air-pattern adjustments are required and access to balancing devices is provided. adjusting. 4. Record default set points if different from design values. 8. 3. and equipment cabinets for installation of test probes to the minimum extent necessary to allow adequate performance of procedures. ADJUSTING. 6. Adjusting. Changeover from heating to cooling mode occurs according to design values. Balance dampers are open. PREPARATION Prepare a testing. and balancing plan that includes strategies and step-bystep procedures. Observe and record system reactions to changes in conditions. valve indicators. Equipment and duct access doors are securely closed. Hydronic systems are filled. Cut insulation. fan-speed-control levers.
GENERAL PROCEDURES FOR TESTING AND BALANCING Perform testing and balancing procedures on each system according to the procedures contained in AABC national standards or in NEBB's "Procedural Standards for Testing. After testing and balancing. pipes. ducts.
Report deficiencies discovered before and during performance of testing.
9. Windows and doors can be closed so design conditions for system operations can be met. 2. Balancing valves are open and control valves are operational.
23 05 93 .2 A. 5. & BALANCING FOR HVAC
. 7. Permanent electrical power wiring is complete.
3. Interlocked systems are operating.8. Complete system readiness checks and prepare system readiness reports. Automatic temperature-control systems are operational. close probe holes and patch insulation with new materials identical to those removed. and similar controls and devices. Verify the following: 1.
Controller set points are set at design values. including damper-control positions.
3. permanent identification material. and balancing procedures. 10. and Balancing of Environmental Systems" and this Section. Mark equipment settings with paint or other suitable. adjusting.
C.6 TESTING.3 A.
H. D. 1. 3.and exhaust-air dampers. Crosscheck the summation of required outlet volumes with required fan volumes.
C. Verify that motor starters are equipped with properly sized thermal protection. PROCEDURES FOR VARIABLE-VOLUME AIR SYSTEMS Adjust fans to deliver total indicated airflows within the maximum allowable fan speed listed by fan manufacturer. balance the air outlets downstream from terminal units. B. G. F. Check for proper sealing of air duct system. Variable-Air-Volume Systems: Adjust the variable-air-volume systems as follows: 1. E.
D. & BALANCING FOR HVAC
. Use terminal-unit manufacturer's written instructions to make this adjustment. Measure terminal outlets using a direct-reading hood or outlet manufacturer's written instructions and calculating factors. report the condition but leave outlets balanced for maximum airflow.4 A.3. develop a plan to simulate diversity.
GENERAL PROCEDURES FOR BALANCING AIR SYSTEMS Prepare test reports for both fans and outlets. a. ADJUSTING. Determine the best locations in main and branch ducts for accurate duct airflow measurements. Make adjustments using volume dampers rather than extractors and the dampers at air terminals.
2. Prepare schematic diagrams of systems' "as-built" duct layouts.5 A. 23 05 93 . Set terminal units at maximum airflow and adjust controller or regulator to deliver the designed maximum airflow. For variable-air-volume systems. I. and motor starters. When total airflow is correct.
B. Obtain manufacturer's outlet factors and recommended testing procedures. Check airflow patterns from the outside-air louvers and dampers and the return. If air outlets are out of balance at minimum airflow.
Adjust terminal outlets and inlets for each space to indicated airflows within specified tolerances of indicated values. C. J.
Measure terminal outlets and inlets without making adjustments. electrical interlocks. Set terminal units at minimum airflow and adjust controller or regulator to deliver the designed minimum airflow. Check dampers for proper position to achieve desired airflow path. Locate start-stop and disconnect switches. through the supply-fan discharge and mixing dampers. Check for airflow blockages.7 TESTING.
each phase. 5. 6. 4. including controller manufacturer. 5. Water pressure drop. Airflow.
Motors Driven by Variable-Frequency Controllers: Test for proper operation at speeds varying from minimum to maximum. Nameplate and measured amperage. Motor rpm. Test the manual bypass for the controller to prove proper operation. Entering. Nameplate and measured voltage.and leaving-water temperature. observe the space to verify the integrity of the space boundaries. Conduct a pressure test in the space before the ceiling is installed to verify the integrity of the envelope. 23 05 93 . Measure. adjust. ADJUSTING. Manufacturer. & BALANCING FOR HVAC
B. each phase. 3. Dry-bulb temperature of entering and leaving air.6 A. Air pressure drop. gaskets.
PROCEDURES ADJUSTMENTS
Before testing for space pressurization. Verify that windows and doors are closed and applicable safing. and each building by adjusting the supply and exhaust airflows to achieve the indicated conditions.
2. Starter thermal-protection-element rating. PROCEDURES FOR HEAT-TRANSFER COILS Water Coils: Measure the following data for each coil: 1.7 A.
. Portable fans or the equipment installed for the project may be used. Motor horsepower rating. FOR SPACE PRESSURIZATION MEASUREMENTS AND
Adjust each outlet in same room or space to within specified tolerances of indicated quantities without generating noise levels above the limitations prescribed by the Contract Documents. Record observations. 3. each zone. and sealants are installed.
3. Efficiency rating. and record the pressurization of each room. Water flow rate.
PROCEDURES FOR MOTORS Motors. 1/2 HP and Larger: Test at final balanced conditions and record the following data: 1. model and serial numbers. 6. 2. 2.
B. 7. 3. and nameplate data.1. model. 4. Report deficiencies and postpone testing until after the reported deficiencies are corrected. Wet-bulb temperature of entering and leaving air for cooling coils.8 A.8 TESTING. and serial numbers. Adjust patterns of adjustable outlets for proper distribution without drafts. 7.
observe and adjust the controls to achieve the desired set point. For applications with cascading levels of space pressurization. begin in the most critical space and work to the least critical space. ADJUSTING. then zones. For spaces served by variable-air-volume supply and exhaust systems. measure space pressurization at indicated airflow and minimum airflow conditions.
Measure space pressure differential where pressure is used as the design criteria. Report deficiencies.
4. 2. make equipment adjustments to achieve the calculated airflow and water flow rates. such as normal mode and emergency mode or occupied mode and unoccupied mode. Check the repeatability of the controls by successive tests designed to temporarily alter the ability to achieve space pressurization. and measure airflow differential where differential airflow is used as the design criteria for space pressurization. D. ADJUSTING.
3. Record indicated conditions and corresponding initial and final measurements. and record data for each operating mode. If 5 percent or less. Record the high-pressure side. measure and record the pressure difference between the intended spaces at the door with all doors in the space closed.
3. Air balance each air outlet. AND BALANCING EXISTING
Perform testing and balancing of existing systems to the extent that existing systems are affected by the renovation work. adjust. For pressure measurements. equipment adjustments are not required. Verify that the indicated airflows of the renovated work result in filter and coil face velocities and fan speeds that are within the acceptable limits defined by equipment manufacturer. & BALANCING FOR HVAC
3. filter.9 A. F.C.
In spaces that employ multiple modes of operation. 1. Test overpressurization and underpressurization. Compare the indicated airflow of the renovated work to the measured fan airflows and determine the new fan.
23 05 93 . and observe and report on the system's ability to revert to the set point.
To achieve indicated pressurization. Compare the values of the measurements taken to the measured values of the control system instruments and report findings.9 TESTING. speed. and pressure difference between each adjacent space. low-pressure side. 1. measure. For spaces with pressurization being monitored and controlled automatically. Test room pressurization first. If calculations increase or decrease the airflow and water flow rates by more than 5 percent. and finish with building pressurization.
2. PROCEDURES SYSTEMS FOR TESTING. E. and coil face velocity. 1. set the supply airflow to the indicated conditions and adjust the exhaust airflow to achieve the indicated pressure or airflow difference. 3.
Record voltages of power supply and controller output. Supply and Exhaust Fans and Equipment with Fans: Plus 5 to plus 10 percent. F. 2.and low-temperature controllers). J. Air Outlets and Inlets: +10% to minus 5 percent.e. B. Check the interaction of interlock and lockout systems.. Check main control supply-air pressure and observe compressor and dryer operations. and scheduled procedures. Record controller settings and note variances between set points and actual measurements.
. D. Note the speed of response to input changes.
G. TOLERANCES Set HVAC system airflow and water flow rates within the following tolerances: 1. Note operation of electric actuators using spring return for proper fail-safe operations.
3. Prepare a 23 05 93 . Recommend changes and additions to systems' balancing devices to facilitate proper performance measuring and balancing. Check the operation of limiting controllers (i. Status Reports: As Work progresses.10 A.11 A.10 TESTING. I. Determine whether the system operates on a grounded or nongrounded power supply. 3.
REPORTING Initial Construction-Phase Report: Based on examination of the Contract Documents as specified in "Examination" Article. H. C. prepare a report on the adequacy of design for systems' balancing devices. E.
TEMPERATURE-CONTROL VERIFICATION Verify that controllers are calibrated and commissioned. Check the interaction of electrically operated switch transducers. ADJUSTING. Check transmitter and controller locations and note conditions that would adversely affect control functions. Recommend changes and additions to HVAC systems and general construction to allow access for performance measuring and balancing devices. procedures in progress.3. & BALANCING FOR HVAC
B. 3. Include a list of deficiencies and problems found in systems being tested and balanced. Check free travel and proper operation of control devices such as damper and valve operators. Check the sequence of operation of control devices. prepare reports to describe completed procedures. Heating-Water Flow Rate: +10% to minus 5 percent. high. Note air pressures and device positions and correlate with airflow and water flow measurements.12 A. K.
10. include the following data in the final report. Description of system operation sequence if it varies from the Contract Documents. and fittings. & BALANCING FOR HVAC
. Other information relative to equipment performance. 12.
Nomenclature sheets for each item of equipment. but do not include Shop Drawings and Product Data. Indicated versus final performance. 2. along with proof of calibration. Include a certification sheet in front of binder signed and sealed by the certified testing and balancing engineer. 13. Report date. 5. type size. as applicable: 1. 8.13 A. C.
General Report Data: In addition to form titles and entries. Fan curves. 7. 2.11 TESTING. 3. 3. 14.separate report for each system and each building floor for systems serving multiple floors. Field test reports prepared by system and equipment installers. Notes to explain why certain final data in the body of reports varies from indicated values. Test conditions for fan performance forms including the following: a. include the following: 1. Name and address of TAB firm. 15. Engineer's name and address. in three-ring binder. Data for terminal units. Contractor's name and address. 1. Summary of contents including the following: a. Architect's name and address. tabulated and divided into sections by tested and balanced systems. 3. or computer printout in letter-quality font. 11. b. Project name. 6. 23 05 93 . Notable characteristics of systems.
Final Report Contents: In addition to certified field report data. 4. ADJUSTING. Include a list of instruments used for procedures. 9. FINAL REPORT General: Typewritten. Signature of TAB firm who certifies the report. 4. Title page. Number each page in the report. c. Manufacturers' test data. on standard bond paper.
B. Settings for exhaust-air dampers. including manufacturer. Project location. Table of Contents with the total number of pages defined for each section of the report.
e. Fan rpm. 2. and inlet sizes. 7. Duct. Make and type.
Test Data (Indicated and Actual Values): a. Sheave make. and hertz. Quantities of supply and exhaust airflows. and bore. g. Location. outlet. center-to-center. include the following: 1. phase. ADJUSTING. g. Total airflow rate in cfm. e. f. Terminal units. d. Pipe and valve sizes and locations. d. size in inches. Discharge static pressure in inches wg. Suction static pressure in inches wg. Number of belts. e. Horsepower and rpm. f. & BALANCING FOR HVAC
. Arrangement and class. 3. c. c. b. 5. 4.
F. Position of balancing devices.
Fan Test Reports: For exhaust fans.
Conditions of filters.12 TESTING. and size. h. Sheave make. Other system operating conditions that affect performance. Manufacturer's serial number. Model number and size. center-to-center.
Round and Rectangular Duct Traverse Reports: Include a diagram with a grid representing the duct cross-section and record the following: 23 05 93 . Balancing stations. Total system static pressure in inches wg. and amount of adjustments in inches. Sheave dimensions.
Motor Data: a. 2. d. d. Make and frame type and size.
System Diagrams: Include schematic layouts of air and hydronic distribution systems. c. and amount of adjustments in inches. c. 6. Volts. size in inches. Water flow rates.
G. E. and bore. b. Fan Data: a. Sheave dimensions. System identification. make. Present each system with single-line diagram and include the following: 1. Full-load amperage and service factor.b. Fan drive settings including settings and percentage of maximum pitch diameter. b.
Room or riser served. Traverse air temperature in deg F. 2. e. System and air-handling unit number. Preliminary velocity as needed in fpm. Final airflow rate in cfm. Air-terminal-device make. Actual airflow rate in cfm. Coil make and size. include the following: 1. 2. j. d. Unit Data: a. k. f.. Area served. System and air-handling unit identification. b. h. & BALANCING FOR HVAC
. Location and zone. c. Unit Data: a. Space temperature in deg F. ft. b. Duct area in sq. Indicated airflow rate in cfm. Final velocity in fpm. Air-terminal-device number from system diagram. Indicated velocity in fpm.
I. d.1. e. Barometric pressure in psig.
System-Coil Reports: For water coils of terminal units. e. c. 23 05 93 . Airflow rate in cfm. i. g. Air-terminal-device size.
Air-Terminal-Device Reports: 1. Air velocity in fpm. b. Preliminary airflow rate as needed in cfm.. ADJUSTING.
Test Data (Indicated and Actual Values): a.
Report Data: a. Airflow rate in cfm. Duct size in inches. f. ft. Air-terminal-device effective area in sq. c. Test apparatus used.
Test Data (Indicated and Actual Values): a. System and air-handling unit identification. d. Duct static pressure in inches wg. g. e. Location and zone. c.13 TESTING. Actual average velocity in fpm. f. d. Flowmeter type. Location and zone. i. g. h. b. Air-terminal-device type and model number.
Randomly check the following for each system: a. the measurements shall be noted as "FAILED.
Final Inspection: 1. b. After initial inspection is complete and evidence by random checks verifies that testing and balancing are complete and accurately documented in the final report. request that a final inspection be made by Architect. Measure room temperature at each thermostat/temperature sensor. Entering-air temperature in deg F. Leaving-air temperature in deg F. e.b. f. Water pressure drop in feet of head or psig.
23 05 93 . Measure airflow of at least 10 percent of air outlets." If the number of "FAILED" measurements is greater than 10 percent of the total measurements checked during the final inspection.14 A. The rechecking shall be limited to either 10 percent of the total measurements recorded. c. After testing and balancing are complete.14 TESTING. d. Measure space pressure of at least 10 percent of locations.
Entering-water temperature in deg F. If the rechecks yield measurements that differ from the measurements documented in the final report by more than the tolerances allowed.
4. d. e. or the extent of measurements that can be accomplished in a normal 8-hour business day. Note deviations to the Contract Documents in the Final Report. Measure water flow of at least 5 percent of terminals. TAB firm test and balance engineer shall conduct the inspection in the presence of Architect. f. ADJUSTING. Owner shall contract the services of another TAB firm to complete the testing and balancing in accordance with the Contract Documents and deduct the cost of the services from the final payment.
2. Compare the reading to the set point.
2. Revise the final report and balancing device settings to include all changes and resubmit the final report.
5. c. 3. operate each system and randomly check measurements to verify that the system is operating according to the final test and balance readings documented in the Final Report. the testing and balancing shall be considered incomplete and shall be rejected.
INSPECTIONS Initial Inspection: 1. If the second final inspection also fails. Request a second final inspection. Architect shall randomly select measurements documented in the final report to be rechecked.
B. & BALANCING FOR HVAC
. Leaving-water temperature in deg F. 3. TAB firm shall recheck all measurements and make adjustments. Verify that balancing devices are marked with final balance position.
B.15 TESTING. ADJUSTING.15 A. and adjusting during near-peak summer and winter conditions.3. & BALANCING FOR HVAC
. perform additional testing and balancing to verify that balanced conditions are being maintained throughout and to correct unusual conditions. perform additional testing.
END OF SECTION 230593
23 05 93 . Seasonal Periods: If initial TAB procedures were not performed during near-peak summer and winter conditions.
ADDITIONAL TESTS Within 90 days of completing TAB. inspecting.
RELATED DOCUMENTS Drawings and general provisions of the Contract. valves. apply to this Section. type of device. control panels.
1. DDC System Hardware: Bill of materials of equipment indicating quantity. color graphics. Supplementary Conditions. 1. and other third-party applications. 1. isolation fan systems. actuators.SECTION 230900 . SUMMARY This Section includes control equipment for HVAC systems and components. Indicate dimensions. Related Sections include the following: 1.3 A. and model number.2 A.
Contractors/Suppliers: 1. manufacturer. Include technical data for operator workstation equipment. Division 23 Section "Meters and Gages for HVAC Piping" for measuring equipment that relates to this Section. electrical characteristics. and other components as indicated on the drawings. Control System Software: Include technical data for operating system software. and operator interface equipment.1 A. Controlled Systems: Instrumentation list with element name. and installation and startup instructions for each type of product indicated.
B. 3. door switches. including General and
1. interface equipment. model number. control units. C. Include written description of sequence of operation including schematic diagram.
SEQUENCE OF OPERATION Refer to sequence on the drawings.INSTRUMENTATION AND CONTROL FOR HVAC PART 1 .1 INSTRUMENTATION AND CONTROL FOR HVAC
2. manufacturer. and product data. relays/switches. room pressure monitors. performance characteristics.GENERAL 1. 23 09 00 . ATC contractors shall be Siemens or Johnson and limited to those personnel approved by Cleveland Clinic.
. sensors. ACTION SUBMITTALS Product Data: Include manufacturer's technical literature for each control device. including control components for terminal heating and cooling units.4 A. transducers/transmitters. capacities. finishes for materials. operator interface.
5 A. and maintenance manuals. DDC System Hardware: a. operation. showing trunk data conductors and wiring between operator workstation and control unit locations. with wiring. data (connected and calculated) point addresses.2 INSTRUMENTATION AND CONTROL FOR HVAC
9. Controlled Systems: a. dampers. 6. Written description of sequence of operation including schematic diagram. Keyboard illustrations and step-by-step procedures indexed for each operator function. Interconnection wiring diagrams with identified and numbered system components and devices. 4. output schedule.
10. required clearances. including controls. Written description of sequence of operation. and control wiring.
INFORMATIONAL SUBMITTALS Field quality-control test reports. and model number. and flow characteristics. 2.
Shop Drawings: Detail equipment assemblies and indicate dimensions. and operator notations. pumps. communication. valves. weights. 7. manufacturer. Maintenance instructions and lists of spare parts for each type of control device and compressed-air station. and wiring of elements including bases and special construction. coils. 1. 1. Points list.
23 09 00 . Scaled drawings showing mounting. Schematic diagrams and floor plans for field sensors and control hardware. d. and location and size of each field connection.B. method of field assembly. and control devices.
1. 8. leakage. CLOSEOUT SUBMITTALS Operation and Maintenance Data: For HVAC instrumentation and control system to include in emergency. Bill of materials of equipment indicating quantity. instruments. b. Wiring Diagrams: Power. Wiring diagrams for control units with termination numbers. 2. Include the following: 1. loads. and labeling. Schematic diagrams for control. and power wiring. 5.6 A.
Control System Software: List of color graphics indicating monitored systems. Schematic flow diagrams showing fans. Schedule of valves including flow characteristics. c. Details of control panel faces. Schedule of dampers including size. b. components. Schematic diagrams of each controlled system with control points labeled and control elements graphically shown. routing. c. 3. 3. signal.
1. Coordinate supply of conditioned electrical branch circuits for control units. Coordinate equipment with Division 26 Section "Electrical Power Monitoring and Control" to achieve compatibility of communication interfaces.
B.9 A. 2. humidistats. and other exposed control sensors with plans and room details before installation. and calibration tolerances.
Inspection period.8 A. STORAGE. Device address list. cleaning materials recommended. DELIVERY.7 A. 5. cleaning methods. AND HANDLING Factory-Mounted Components: Where control devices specified in this Section are indicated to be factory mounted on equipment.3 INSTRUMENTATION AND CONTROL FOR HVAC
. by a testing agency acceptable to authorities having jurisdiction. B. 1. and Accessories: Listed and labeled as defined in NFPA 70.
QUALITY ASSURANCE Installer Qualifications: Automatic control system manufacturer's authorized representative who is trained and approved for installation of system components required for this Project.
1. System Software: Update to latest version of software at Project completion. arrange for shipping of control devices to equipment manufacturer. B.
23 09 00 . COORDINATION Coordinate location of thermostats.
C. Article 100.4. Coordinate equipment with Division 26 Section "Variable Frequency Motor Controllers" to achieve compatibility with starter coils and annunciation devices. Comply with ASHRAE 135 for DDC system components. Printout of software application and graphic screens. and marked for intended use. D. C. Electrical Components.
Software and Firmware Operational Documentation: Include the following: 1. Devices. Calibration records and list of set points.
a pressure sensor. D. indicators.
. other apparatus.
2.2 of the NFPA 45 Standard.
3. and a door switch. and accessories to control mechanical systems. Control system shall consist of sensors. Johnson Controls. All components of the room pressure controller shall be part of a completely designed. The room pressure monitor shall be factory fabricated with an industrial grade metal case for mounting on a snap-on bracket provided by the manufacturer. The controller shall mount to the bracket attached to a single gang electrical box on a wall inside the controlled space. cataloged. CONTROL SYSTEM Manufacturers: 1. Siemens Building Technologies. actuators. Controls Group.20000 to +0. Inc. indicators. interface equipment. Equipment shall be as manufactured by Johnson or Siemens and following the standard used at Cleveland Clinic. 23 09 00 . C. final control elements. Room Pressure Monitor: 1. actuators. and display the room pressure. An alphanumeric digital display indicating the measured room pressure in inches of H2O.
2. A room pressure monitor shall be provided to measure.
Control system shall consist of sensors.. interface equipment. C.PART 2 .
B. ROOM PRESSURE MONITOR A room pressure monitor system shall be furnished and installed to monitor the measured room pressure in the isolation room. It shall provide access to menu driven programming options through a keypad.PRODUCTS 2. tested.1 A. B. The display shall have a range of -0.4 INSTRUMENTATION AND CONTROL FOR HVAC
D. multitasking environment on tokenpassing network and programmed to control mechanical systems. other apparatus. 2. all low voltage control wiring. The room pressure monitor shall have the following characteristics: a. Inc. accessories. a low voltage control transformer. final control elements. The system shall include a room pressure monitor. The system shall continuously measure and display the room pressure to comply with the requirement set forth in Section 6-4.2 A.20000 with a resolution of 5% of reading and shall be updated every one half second. and software connected to distributed controllers operating in multiuser. and factory coordinated package by Siemens or TSI Inc.
The velocity sensing elements shall be ceramic coated platinum RTD for corrosion resistance and easy cleaning. e. k.
2. Constant temperature thermal anemometry shall be used to make the air velocity measurement. and menu options. The type of analog output must be specified at the time of order. F.20000 inches H2O. general and no-flow alarms which shall be SPST (N. A LAN communications port for connection to the Building Automation System.
4. Alarm contacts for low. A keyswitch to change from negative to neutral. with the PVC tubing between them through the wall.C. Uni-directional sensors are not acceptable. One housing shall be mounted on the wall in the controlled space. The wall thickness shall not exceed two feet. F. spill-proof membrane switch keypad to operated menu-driven programming. 6. All wiring to the room pressure monitor shall be wired to a terminal strip which plugs into the back of the monitor for easy installation. Door Switch contact. A hard molded plastic "dumbbell" assembly shall be used to mount the pressure sensor. E. Ceiling mounted units may be used in rooms with anterooms when measuring room pressure relative to the corridor.).
23 09 00 .
4. c. Alarm silent switch f. Mounting hardware shall be provided for installation of the pressure sensor in the plastic housing mounted on the wall of the controlled space. A 0-10 VDC or 4-20 mA linear analog output with variable range. The sensor shall accurately measure room pressure in the range of -0. A port for connection to a portable or fixed computer for configuring room pressure monitors with similar setpoints. The pressure sensor shall consist of two velocity sensing elements mounted inline with each other and a temperature compensating element. The sensor shall be bi-directional to determine the proper direction of pressure. j. A bell-shaped air inlet design shall be used for smooth laminar airflow across the sensing elements. The neutral position shall disengage the alarm. Pressure transducers are not acceptable. The contacts shall close in alarm conditions and loss of power.20000 to +0. 5. The "dumbbell" shall consist of two wall-mounted plastic housings and PVC tubing.
An audible alarm that sounds when the room is in an alarm condition assuming it has not been previously muted. to 95 Deg. alarm conditions. high.b. h. The sensor shall be temperature compensated over a range of 55 Deg.5 INSTRUMENTATION AND CONTROL FOR HVAC
. i. The BAS shall be capable of monitoring and setting the alarm points. Minimum of two indicator lights shall be shown on the front of the controller indicating the following conditions: 1) 2) Red ALARM light Green NORMAL light
d. one in the referenced space.
Pressure Sensor/Transmitter: 1.
" Install signal and communication "Communications Horizontal Cabling. B. A low voltage transformer shall be provided to power to the room pressure controlling system.1 A. Verify location of thermostats. The transformer shall be installed in a standard 4" x 4" electrical box. C. B." Install building wire and cable according to Division 26 Section "Low-Voltage Electrical Power Conductors and Cables. Implement all features of programs to specified requirements and as appropriate to sequence of operation. 5. C. A 25 foot.5 amps maximum. 22 AWG cable shall be provided as the electrical interface between the transformer and the pressure controller. Connect and configure equipment and software to achieve sequence of operation specified. 4-conductor. 4.
A 6 foot.
Conceal cable. and other exposed control sensors with Drawings and room details before installation. 23 09 00 ." 1. humidistats. cable according to Division 27 Section
3.EXECUTION 3. 2-conductor.6 INSTRUMENTATION AND CONTROL FOR HVAC
Door Switch: G. Install exposed cable in raceway. boxes. except in mechanical rooms and areas where other conduit and piping are exposed. polarized plug-in connectors at both ends shall be provided for the wiring connection between the sensor and the pressure controller for easy connections. ELECTRICAL WIRING AND CONNECTION INSTALLATION Install raceways. 6. INSTALLATION Install software in control units and operator workstation(s). and cabinets according to Division 26 Section "Raceway and Boxes for Electrical Systems. 2.
Transformer: 1. The transformer shall have a rating of 20 VA with a 0. 22 AWG cable with 4-pin. 3. Install devices 48 inches above the floor. Provide a door switch to monitor the door position.2 A.
Sequence of Operation: Room pressure monitor shall function as indicated on the drawings
PART 3 . 2. The transformer shall have a primary-side voltage of 120 VAC and a secondaryside voltage of 24 VAC.7. The transformer shall be UL listed.
B. 7. Verify that instruments are installed before calibration.3 A. Check control valves. Test software and hardware interlocks. Test calibration of electronic controllers by disconnecting input sensors and stimulating operation with compatible signal generator. Test each system for compliance with sequence of operation. and support. Check temperature instruments and material and length of sensing elements. except local individual room control cables. Adjust PID actions.
DDC Verification: 1. Check instruments for proper location and accessibility. start units to confirm proper unit operation. test. Fasten flexible conductors. and verify that inlet side is identified and that meters are installed correctly. 3. slope. Install wire and cable with sufficient slack and flexible connections to allow for vibration of piping and equipment. and adjust field-assembled components and equipment installation. 6. Test and adjust controls and safeties.
2. Test each point through its full operating range to verify that safety and operating control set points are as required. 4. 7. 2. Number-code or color-code conductors for future identification and service of control system. and other applicable considerations. material. Verify that they are in correct direction. C. Remove and replace malfunctioning units and retest. Inspect tag number and line and bore size. D. Check instrument tubing for proper fittings. Connect hand-off-auto selector switches to override automatic interlock controls when switch is in hand position. Perform the following field tests and inspections and prepare test reports: 1.7 INSTRUMENTATION AND CONTROL FOR HVAC
. protect against abrasion.
3. and loop or leak checks. Test each control loop to verify stable mode of operation and compliance with sequence of operation. 4. Check instrument installation for direction of flow. 3. Bundle and harness multiconductor instrument cable in place of single cables where several cables follow a common path.3. Operational Test: After electrical circuitry has been energized. 5. orientation. Report results in writing.
Connect manual-reset limit controls independent of manual-control switch positions. 5. 4. including connections. Check DDC system as follows:
23 09 00 . E. testing. 7. 6. FIELD QUALITY CONTROL Manufacturer's Field Service: Engage a factory-authorized service representative to inspect. along hinge side. Tie and support conductors.
Install concealed cable in raceway. 8. Check flow instruments. 5. insertion depth. 6. bridging cabinets and doors.
Verify that spare I/O capacity has been provided. Provide written description of procedures and equipment for calibrating each type of instrument. c. Calibrate pressure transmitters at 0. with adjustable differential set at minimum. b. so that valve or damper is 100 percent open and closed. D. Set differential pressure flow transmitters for 0 and 100 percent values with 3-point calibration accomplished at 50. Stroke and adjust control valves and dampers with positioners.
4. following manufacturer's recommended procedure.
8. Calibrate temperature switches to make or break contacts.8 INSTRUMENTATION AND CONTROL FOR HVAC
. so that valve and damper is 0. 90. 2. Use test equipment with accuracy at least double that of instrument being calibrated.
Stroke and adjust control valves and dampers without positioners. and 100 percent closed.
Verify that DDC controller power supply is from emergency power supply. Provide diagnostic and test instruments for calibration and adjustment of system. Calibrate pressure switches to make or break contacts. 23 09 00 . b. Verify that wires at control panels are tagged with their service designation and approved tagging system.
3. Calibrate equipment and procedures using manufacturer's written recommendations and instruction manuals.
B. and 100 percent of span. 3.
Replace damaged or malfunctioning controls and equipment and repeat testing procedures.a. and 100 percent of span.
Pressure: a. Calibrate resistance temperature transmitters at 0. Verify that DDC controllers are protected from power supply surges. and 100 percent of span using a precision-resistance source. Submit procedures review and approval before initiating startup procedures. ADJUSTING Calibrating and Adjusting: 1. 50. Make three-point calibration test for both linearity and accuracy for each analog instrument. 50. if applicable. d. 50. 5.
9. b. following the manufacturer's recommended procedure.4 A. b. Flow: a.
Temperature: a. Manually operate flow switches to verify that they make or break contact. Calibrate instruments. 10.
and maintain HVAC instrumentation and controls.
3. operate.
END OF SECTION 230900
23 09 00 .C.9 INSTRUMENTATION AND CONTROL FOR HVAC
. provide on-site assistance in adjusting system to suit actual occupied conditions.5 A.
Occupancy Adjustments: When requested within 12 months of date of Substantial Completion. DEMONSTRATION Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust. Provide up to three visits to Project during other than normal occupancy hours for this purpose.
2 A. B. including General and
1. method of field assembly. 1. loads. 4.
PERFORMANCE REQUIREMENTS Project Altitude: Base fan-performance ratings on actual Project site elevations. Include adjustable motor bases. 2. 3. including analysis data signed and sealed by the qualified professional engineer responsible for their preparation. 1.1 HVAC POWER VENTILATORS
. elevations. Material thickness and finishes.GENERAL 1. weights. Certified fan sound-power ratings.
Shop Drawings: Include plans. and furnished specialties and accessories.1 A. Also include the following: 1. Supplementary Conditions.3 A. C. SUMMARY Section includes: 1. rails. and attachments to other work. ACTION SUBMITTALS Product Data: For each type of product indicated.SECTION 233423 – HVAC POWER VENTILATORS PART 1 . Utility set fans.
2. RELATED DOCUMENTS Drawings and general provisions of the Contract. and control wiring. Include rated capacities. Motor ratings and electrical characteristics. required clearances. 1. and location and size of each field connection. Certified fan performance curves with system operating conditions indicated. signal. and frames for equipment mounting 23 34 23 . Vibration Isolation Base Details: Detail fabrication including anchorages and attachments to structure and to supported equipment.4 A. including color charts.
Delegated-Design Submittal: For unit hangars and supports indicated to comply with performance requirements and design criteria. operating characteristics. components. Wiring Diagrams: For power. plus motor and electrical accessories.
B. details. apply to this Section. 1. Operating Limits: Classify according to AMCA 99. Detail equipment assemblies and indicate dimensions. sections.
B. B. COORDINATION Coordinate fan with the Fan/Filter system.9 A.2. MAINTENANCE MATERIAL SUBMITTALS Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.
1. UTILITY SET FANS Basis-of-Design Product: Subject to compliance with requirements. 1. Coordinate sizes and locations of roof curbs. and Accessories: Listed and labeled as defined in NFPA 70. provide: 1. QUALITY ASSURANCE Electrical Components.2 HVAC POWER VENTILATORS
. and maintenance manuals. equipment supports.
INFORMATIONAL SUBMITTALS Field quality-control reports. C.6 A. Loren Cook Company (no substitutes)
Housing: Fabricated of steel with side sheets fastened with a deep lock seam or welded to scroll sheets.8 A. by a qualified testing agency.PRODUCTS 2.1 A. Devices. CLOSEOUT SUBMITTALS Operation and Maintenance Data: For power ventilators to include in emergency.
Design Calculations: Calculate requirements for selecting vibration isolators and for designing vibration isolation bases. UL Standards: Power ventilators shall comply with UL 705. AMCA Compliance: Fans shall have AMCA-Certified performance ratings and shall bear the AMCA-Certified Ratings Seal. and roof penetrations with actual equipment provided. and marked for intended location and application. operation. 1.7 A. 23 34 23 .
Fan Wheels: Single-width. Drain Connections: NPS 3/4 threaded coupling drain connection installed at lowest point of housing.3 HVAC POWER VENTILATORS
. temperature rating.000 hour salt spray under ASTM B117 test method
C. Type: Spring isolators. 1. G. Inlet and Outlet: Flanged Companion Flanges: Rolled flanges for duct connections of same material as housing. 23 34 23 . and efficiency requirements for motors specified in Division 23 Section "Common Motor Requirements for HVAC Equipment". Access Door: Gasketed door in scroll with latch-type handles.
MOTORS Comply with NEMA designation.
Housing Discharge Arrangement: Adjustable to position as required for the fan/filter system package. and polished steel. enclosure type. keyed to wheel hub.
H. 4. Paint must exceed 1. Weather Hoods: Weather resistant with stamped vents over motor and drive compartment.
I. Shaft Bearings: Prelubricated and sealed. ground. Coating: Steel fan components shall have electrostatically applied.
2. Extend grease fitting to accessible location outside of unit. 1. baked polyester powder coating.
Vibration Isolators: 1.
Fan Shaft: Turned. 5.
Direct Drive: Fan shall be direct drive. E. 3.
2. Inlet Screens: Removable wire mesh. Refer to Section 23 41 33 HIGH EFFICIENCY PARTICULATE FILTRATION. with hub keyed to shaft. single inlet. 2. large enough so driven load will not require motor to operate in service factor range above 1. 2. pillow-block-type ball bearings with ABMA 9. 1. Refer to drawings for fan information. welded to cast-iron or cast-steel hub and spunsteel inlet cone.
F. Motor Sizes: Minimum size as indicated. Accessories: 1. If not indicated. Blade Materials: Steel Blade Type: Forward curved
D.1. self-aligning. service factor.0.
Capacities and Characteristics: 1.
fan cooled. Install ducts adjacent to power ventilators to allow service and maintenance. D. 2." Factory test fans according to AMCA 300.
B. and efficiency by factory tests according to AMCA 210. Motors shall be inverter rated duty for use with variable frequency drives. C. Connect wiring according to Division 26 Section "Low-Voltage Electrical Power Conductors and Cables".
Enclosure Type: Totally enclosed. speed of rotation." Label fans with the AMCA-Certified Ratings Seal.1 A. Make final duct connections with flexible connectors.2.
23 34 23 . C. including flow rate.
Controllers. pressure. Electrical Devices. INSTALLATION Install power ventilators level and plumb. Ground equipment according to Division 26 Section "Grounding and Bonding for Electrical Systems".
B. B. B. Support units using on structure with the HEPA filter system as part of the Fan/Filter System.2 A. power.
3. SOURCE QUALITY CONTROL Certify sound-power level ratings according to AMCA 301.EXECUTION 3." Label fans with the AMCA-Certified Ratings Seal. and Wiring: Comply with requirements for electrical devices and connections specified in Division 26 Sections.4 HVAC POWER VENTILATORS
. Drawings indicate general arrangement of ducts and duct accessories. "Laboratory Methods of Testing Fans for Aerodynamic Performance Rating. air density. Flexible connectors are specified in Division 23 Section "Air Duct Accessories".
PART 3 . CONNECTIONS Duct installation and connection requirements are specified in other Division 23 Sections. "Reverberant Room Method for Sound Testing of Fans. D. 3. Install units with clearances for service and maintenance. Label units according to requirements specified in Division 23 Section "Identification for HVAC Piping and Equipment".3 A. Certify fan performance ratings. "Methods for Calculating Fan Sound Ratings from Laboratory Test Data.
and bracing are removed. and equipment installations. Replace damaged and malfunctioning controls and equipment. Shut unit down and reconnect automatic temperature-control operators.
3. Prepare test and inspection reports.3. 8. Manufacturer's Field Service: Engage a factory-authorized service representative to inspect components. Verify that shipping.3 A.
B. 2. and measure and record motor voltage and amperage. 3. D.
Test and adjust controls and safeties. 4. starters.
END OF SECTION 233423
23 34 23 . Verify that unit is secure on mountings and supporting devices and that connections to ducts and electrical components are complete. Adjust damper linkages for proper damper operation.4 A.5 HVAC POWER VENTILATORS
. and balancing procedures. 7.
Tests and Inspections: 1. and to assist in testing. and verify fan wheel free rotation and smooth bearing operation. Remove and replace malfunctioning units and retest as specified above. Verify that proper thermal-overload protection is installed in motors. Verify proper motor rotation direction. Verify that cleaning and adjusting are complete. 5. 6. adjusting.
FIELD QUALITY CONTROL Perform tests and inspections. assemblies. Disable automatic temperature-control operators. blocking. 1. ADJUSTING Comply with requirements in Division 23 Section "Testing. Verify lubrication for bearings and other moving parts. energize motor and adjust fan to indicated rpm. 9. Adjusting. C. B. and disconnect switches. Lubricate bearings. and Balancing for HVAC" for testing. including connections.
SUBMITTALS Product Data: Include rated capacities. SUMMARY This Section includes the following: 1. furnished specialties. QUALITY ASSURANCE Listing and Labeling: Provide electrically operated air terminals specified in this Section that are listed and labeled.
C. Constant and variable volume air terminals. and accessories for each model indicated. RELATED DOCUMENTS Drawings and general provisions of the Contract.SECTION 233600 . signal. and control systems and differentiate between manufacturer-installed and field-installed wiring.3 A. weights.
B. D. and operating weights. 23 36 00 . required clearances. Article 100." Comply with NFPA 70 for electrical components and installation. The Terms "Listed" and "Labeled": As defined in NFPA 70. Include a schedule showing drawing designation. loadings. 1. shipping.AIR TERMINAL UNITS PART 1 . C. room location. number furnished. including General and
1. Wiring Diagrams: Detail wiring for power. Shop Drawings: Detail equipment assemblies and indicate dimensions.
NFPA Compliance: Install air terminals according to NFPA 90A. and accessories furnished. 1.
Coordination Drawings: Reflected ceiling plans drawn to scale and coordinating air outlets with other items installed in ceilings. size.
1. "Standard for the Installation of Air Conditioning and Ventilating Systems. Supplementary Conditions.1 AIR TERMINAL UNITS
. components. and location and size of each field connection. Maintenance Data: List of parts for each type of air terminal and troubleshooting maintenance guide to include in the maintenance manuals.4 A. apply to this Section.1 A.GENERAL 1. installed.2 A. method of field assembly. model number. 1.
4 lb/cu. internally lined with 3/4" thick. Nailor Industries (No Substitutes)
G.PRODUCTS 2. contactors and safety and operating controls required by NEC. Mastic or sealant-coated fiberglass or elastomeric type insulation is not acceptable. with shaft rotating in Delrin self-lubricating bearings. but are not limited to. or electric resistance coils with disconnect switches. The damper shall have a built-in stop to prevent overstroking and shall seal against a closed-cell foam gasket. 1-1/2 PCF density fiberglass insulation which complies with UL 181 and NFPA 90A. AIR TERMINAL BOXES General: Provide single duct. Hospital Grade Unit Casing: The unit casing shall be minimum 22 gauge galvanized steel. Insulation shall have flame spread and smoke development ratings not greater than 25 and 50 respectively (UL 723). B. the air terminal units shall be factory furnished with hot water heating coils constructed of copper tubes mechanically expanded to aluminum fins to 150 psig working pressure.PART 2 . constant and variable volume air terminal units of the sizes and capacities shown on the drawings. non-porous. DDC Controls: 1.
F. Damper: Heavy gauge metal. The lining shall be a reinforced foil facing that is smooth. Casing: The unit casing shall be 22 gauge galvanized steel. Exposed insulation edges shall be coated with NFPA 90A approved sealant to prevent erosion.
23 36 00 .
Coils: Where scheduled on the drawings. Coordinate control component requirements with the Building DDC System Supplier. ft density fiberglass ductboard insulation with a hospital-grade lining which complies with UL 181 and NFPA 90A." Boxes shall be factory furnished complete with a controls enclosure and multi-point center-averaging sensor with flow measurement and balancing taps to amplify velocity pressure signals and provide accurate flow sensing regardless of air inlet duct configuration. Exposed insulation edges shall be coated with NFPA 90A approved sealant to prevent erosion.
D. All controls including a DDC controller/actuator shall be furnished and installed at each box by the Building DDC System Supplier as specified in Division 23 Section. and cleanable. manufacturers offering products which may be incorporated in the work include.2 AIR TERMINAL UNITS
E. internally lined with 1/2". Shaft shall be marked on the end to indicate the damper blade position.1 A. Available Manufacturers: Subject to compliance with requirements. "Instrumentation and Control for HVAC. the following: 1.
2. and referenced standards. strainer. E. and to return with balancing valve and union. and ARI certification seal.3 A. C. Electrical: Comply with applicable requirements in Division 26 Electrical. Duct installations and connections are specified in Division 23 Section “Metal Ducts”. Install piping adjacent to air terminal units to allow service and maintenance.3 AIR TERMINAL UNITS
3. coil type.
D.2 A. and maintain sufficient clearance for normal service and maintenance.
B." connect heating coils to supply with shutoff valve. Ground equipment. CONNECTIONS Piping installation requirements are specified in other Division 23 Sections. Tighten electrical connectors and terminals according to manufacturer's published torque-tightening values. Support terminals from overhead building structural steel.
FIELD QUALITY CONTROL Test and adjust controls and safeties. Drawings indicate general arrangement of piping. fittings. and union or flange.
PART 3 . nominal airflow. Hot-Water Piping: In addition to requirements in Division 23 Section "Hydronic Piping. Replace damaged and malfunctioning controls and equipment.EXECUTION 3. B. rough-in drawings. 1.2 A. B. use those specified in UL 486A and UL 486B. according to manufacturer's written instructions. original design.
23 36 00 . Do not support from ceiling grid. maximum and minimum factory-set airflows." Identification: Label each air terminal with plan number. INSTALLATION Install air terminals level and plumb.
SOURCE QUALITY CONTROL Testing Requirements: Test and rate air terminals according to ARI 880. Where manufacturer's torque values are not indicated. and specialties.1 A. control valve. "Industry Standard for Air Terminals.
Verify that control connections are complete. including outlet fittings and devices. dirt. COMMISSIONING Verify that installation of each air terminal is according to the Contract Documents. with at least 7 days' advance notice. 3.4 A. C. and construction debris. Check that controls and control enclosure are accessible.3. inspect exposed finish. Review data in the maintenance manuals. E.6 A. F. Train Owner's maintenance personnel on procedures and schedules related to startup and shutdown. B. Schedule training with Owner.
3. Remove burrs. D.4 AIR TERMINAL UNITS
. Verify that controls respond to inputs as specified. and preventive maintenance. 2. servicing.
END OF SECTION 233600
23 36 00 . Check that nameplate and identification tag are visible. through Architect. troubleshooting.5 A. Check that inlet duct connections are as recommended by air terminal manufacturer to achieve proper performance. 3. and repair damaged finishes. DEMONSTRATION Engage a factory-authorized service representative to train Owner's maintenance personnel as specified below: 1.
CLEANING After completing system installation.
23 41 33 . 3. Inlet transition with 1 ¼” stainless steel decontamination valve. dimensions.SECTION 234133 – HIGH-EFFICIENCY PARTICULATE FILTRATION PART 1 . Include dimensions. Include setting drawings. Drilled inlet flange.
B.2 A.1 HIGH-EFFICIENCY PARTICULATE FILTRATION
. SUMMARY The containment filtration/fan exhaust system shall be a built up system consisting of dampers. transitions. rated flow capacity. Outlet transition with 1 ¼” stainless steel decontamination valve. Inlet bubble tight damper with manual operator. and accessories for each model indicated. 12. Wiring Diagrams: For power. fire classification. and
1. apply to this Section. including initial and final pressure drop at rated airflow. Supplementary Conditions. Include plans. Bubble tight damper for isolation of fan with and automatic operator. 2.
Show filter rack assembly. efficiency and test method.GENERAL 1. materials. Stainless steel weather cap. sections. Dedicated Precision scan housing downstream of the HEPA filters. 13. Shop Drawings: For air filters. 1.1 A. 9. B. 10. 8. ACTION SUBMITTALS Product Data: For each type of product indicated. furnished specialties. Outlet bubble tight damper with manual operator. Dedicated HEPA filter section with 0-3 Photohelic gage. 7. Dedicated pre filter section with 0-1 Photohelic gage. Structural stainless steel skid with lifting lugs.3 A. operating characteristics. Flex connection to fan inlet. templates. The entire system shall be redundant. required clearances and access. filters and fan on a pre-built or build in place skid. 2. and requirements for installing anchor bolts and anchorages. and methods of assembly of components. 5. RELATED DOCUMENTS Drawings and general provisions of the Contract. 6. details. 3. including General and
The HEPA filter exhaust system including the items as listed above shall be manufactured by a single source manufacturer. signal. and control wiring. elevations. Each system shall include: 1. attachments to other work. 11. Upstream DOP and sample ports.
CLOSEOUT SUBMITTALS Operation and Maintenance Data: For each type of filter and rack to include in emergency. G.8 A.
C.7 A. for each filter bank. 1. and marked for intended use.5 A. Comply with IEST-RP-CC007. by a qualified testing agency.1. F.
1. The filter system shall be manufactured under a quality assurance program that meets the basic requirements of ASME NQA-1. COORDINATION Coordinate entire fan/filter system components with proposed locations and provide as a single unit or components built in place. B.
23 41 33 . cleaning and start up. D.3. operation.1. MAINTENANCE MATERIAL SUBMITTALS Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents. Quality Assurance Program Requirements for Nuclear Facilities. 1. ASHRAE Compliance: 1.
INFORMATIONAL SUBMITTALS Field quality-control reports. and successfully passed all three audits. Finish of Interior Surfaces: Surfaces in contact with the airstream shall comply with requirements in ASHRAE 62. E. The manufacturer/supplier of the system shall assemble the fan system or as a minimum shall supervise the installation. Devices.2 HIGH-EFFICIENCY PARTICULATE FILTRATION
. Temporary filters shall be provided during installation. and maintenance manuals.1. Comply with UL 586.
QUALITY ASSURANCE Electrical Components.
1.6 A. and Accessories: Listed and labeled as defined in NFPA 70. Comply with NFPA 90A and NFPA 90B.
Comply with IEST-RP-CC001.
1. both prefilters and HEPA filters. Provide one (1) complete set(s) of filters. The manufacturer shall submit documented evidence that they have been independently audited by customers at least 3 times within the past six (6) years to ASME NQA-1 requirements.4 A.
PART 2 - PRODUCTS 2.1 A. SIDE-SERVICE HOUSINGS Description: The filter shall be bag-in/bag-out design and the downstream test housing shall be a side servicing design arrangement that will allow air to enter and exit the housing without changing direction. All housings shall be manufactured from unpainted 14 and 11 gage type 304 stainless steel. The housing shall be adequately reinforced to withstand a negative or positive pressure of ten (10) inches water gage. 1. Basis-of-Design Product: Subject to compliance with requirements, provide this or comparable product: a. Flanders-Precisionaire CSC-Series All pressure retaining weld joints and seams shall be continuously welded with no pores allowed. Joints and seams requiring only intermittent welds, such as reinforcement members, shall not be continuously welded. As a minimum, joints and seams shall be wire brushed and/or buffed to remove heat discoloration, burrs and sharp edges. All weld joints and seams that are a portion of any gasket sealing surface {e.g. filter seal surface, duct connecting flanges} shall be ground smooth and flush with the adjacent base metal. The upstream and downstream flanges shall have a 1 ½ inch minimum flange width. Flanges shall be turned to the outside of the airstream to prevent contamination buildup and allow the customer to connect mating ductwork from outside the housing. All welding procedures, welders and welder operators shall be qualified in accordance with ASME Boiler and Pressure Vessel Cole Section IX. All production welds shall be visually inspected per the workmanship of ANSI/AWS D9.1-1990, “Specifications for Welding Sheet Metal.” All hardware on the housing and all mechanical components of the filter sealing mechanism shall be 300 series stainless steel, except for the cast aluminum access door knobs and brass pivot blocks in the filter sealing mechanism.
Filter Housing: To accommodate gasket seal filters, the housing shall incorporate a sealing surface that mates with the face of the filter. Access to the filter shall be on the side of the housing. Each tier of filters shall be fitted with a filter clamping mechanism that is operated from inside the housing. The filter clamping mechanism shall include independent pressure bars with pre-loaded springs that exert a minimum sealing force of 1400 pounds per full width filter and 1050 pounds per half width filter, applied as an even, uniform load along at least 80% of the top and bottom of each filter frame. If a multi-wide housing is specified, the housings shall be equipped with filter removal rods to draw the filters to the change-out position. The removal rods shall be operated from inside the change-out bag and shall remove the filter by pulling against the top and/or bottom of the filter frame. All change-out operations shall be within the bag so there is a barrier between the worker and the filter at all times. 1. The housing shall have a bagging ring around each filter access port. The bagging ring shall have two (2) continuous ribs to secure the PVC change-out bag. The outer edge of the ring shall be hemmed to prevent the bag from tearing. Each access port and bagging ring shall be covered by a door having an extruding neoprene gasket that is manually replaceable after the door has been 23 41 33 - 3 HIGH-EFFICIENCY PARTICULATE FILTRATION
removed. When closed, the door shall not press against the bag-out port and PVC bag, thus eliminating the possibility of damage to the bag. One (1) PVC change-out bag shall be furnished for each filter access port. Each bag shall have its stock number rolled into the hem. The PVC bag material shall be either (8) mil thick, yellow in color, with a translucent taffeta texture finish and shall not stick together. For visibility during change-out, the bag shall include approximately sixteen (16) inches of clear PVC at the mouth. Three (3) glove sleeves shall be built into the bag to facilitate handling of the filter during changeout. The PVC bags shall have been tested by an independent laboratory to evaluate their performance at extreme temperature ranges (0°F ¾ 130°F). The elastic shock cord shall be hemmed into the mouth of the bag so that it fits securely when stretched around the bagging ring. To prevent the bag from sliding off the bagging ring during the change-out operation, one (1) nylon security strap shall be provided with each filter access port. A nylon cinching strap shall also be provided with each access port to tie off the slack in the bag while the ventilation system is operating. The housing shall be tested for filter fit, operation of the filter clamping mechanism, sealing surface and leak tightness before leaving the factory. Both the filter sealing surface and the complete assembly pressure boundary shall be leak tested by the “Pressure Decay Method,” in accordance with ASME N5101995 “Reaffirmed,” “Testing of Air Cleaning Systems,” Paragraphs 6 and 7. Pressure readings are recorded once a d minute for five (5) minutes. There shall be a maximum leak rate of 0.0005 CFM per cubic foot of housing volume at ten (10) inches water gage. The standard filter housing modules are seismically qualified, based upon comparison to previous shake table testing and by analysis. The housing modules are qualified in accordance with the criteria of the Uniform Building Code (1994 and 1997) up to Seismic Zone 3 levels; higher levels are available. A minimum of four (4) feet clearance in front of the filter access door is suggested for filter change-out.
The Downstream Test Housing: 1. 2. The downstream test housing shall incorporate a track for the installation, movement, and control of the probe assembly. The probe assembly shall provide the ability to effectively scan the adjacent upstream filters in the system. The assembly shall be engineered to provide isokinetic sampling at 1,000 CFM per filter and provide satisfactory readings at 500 CFM to 2,000 CFM per filter. The probe assembly shall be attached to an interior connection by a flexible tygon tubing. The interior connection shall penetrate the pressure boundry via pipe welded in place, which, in turn, joins to an exterior mounted 1/4" stainless steel ball valve with a brass plug. The ball valve functions as the exterior tube connection leading to the test instrument. The scan assembly shall be positioned to allow the prove to make overlapping passes approximately one (1) inch from the filter face. The adjacent HEPA filter housing shall have a downstream seal location to allow the scan probe to completely scan the full face of the filter and the filter seal without obstruction. All two wide and larger housings shall include an extension rod that will allow the test technician to position the probe assembly when testing the interior filters.
23 41 33 - 4 HIGH-EFFICIENCY PARTICULATE FILTRATION
Prefilters: Each system shall have integral racks to accommodate 24x24x2 MERV-8 pleated pre filters. HEPA Filters: Each system shall accommodate 24 x 24 x 11 1/2, 99.99% Absolute 2K High capacity separator-less filters. Each filter shall be sized and rated for a maximum approach velocity of 500 FPM @ 1.1” w.g based on the system CFM. Filter frame shall be 16 g. galvanized steel with neoprene gasket downstream for scan testing. Each filter shall incorporate an 8” deep separator-less filter pack sealed to the downstream side of the filter frame to enhance scan testing. (V-bed type filters are not acceptable). All systems shall have down stream gasket seal to facilitate scan testing. Access Doors: Continuous gaskets on perimeter and positive-locking devices. Arrange so filter cartridges can be loaded from an access door for each tier and section of the following: 1. 2. 3. Prefilter. HEPA filter. Downstream test section.
Sealing: Incorporate positive-sealing gasket material on channels to seal top and bottom of filter cartridge frames to prevent bypass of unfiltered air. Finish of Interior Surfaces: Surfaces in contact with the airstream shall comply with requirements in ASHRAE 62.1. Fans: Fans shall be as specified in Section 23 34 23 HVAC Power Ventilators. Quality Assurance and Factory Testing: The filter system shall be manufactured under a Quality Assurance program. The filter locking mechanism, differential pressure gage, and fan shall all be tested at the factory to ensure that the system functions properly. FILTER GAGES Diaphragm type Photohelic with dial and pointer in metal case, vent valves, black figures on white background, and front recalibration adjustment. 1. 2. Manufacturers: Subject to compliance with requirements, Basis-of-Design Product: Subject to compliance with requirements, provide manufacturer as noted below or comparable product: a. 3. 4. 5. Dwyer Instruments, Inc.
Diameter: 4-1/2 inches (115 mm) 120V or 24V power as coordinated with ATC and electrical. High static pressure signal to BAS for alarm.
Accessories: Static-pressure tips, tubing, gage connections, and mounting bracket.
23 41 33 - 5 HIGH-EFFICIENCY PARTICULATE FILTRATION
All linkage components shall be manufactured from 300-Series stainless steel. or sharp edges. Flanges shall be minimum 1-1/2" wide by 3/16" thick. Factory drilled holes (7/16" diameter) shall be o more than 4" apart as recommended in DOE-HDBK-1169-2003. and equipped with a visual indicator to show the damper position. Paragraphs 6 and 7.
CAPACITIES AND CHARACTERISTICS Refer to drawings for capacities. Chapter 4. There shall be a maximum leak rate of 0. 2. Provide a manual wheel override and digital damper position transmitter. burrs.0005 CFM per cubic foot of housing volume at 10 inches water gage. The damper shall be all welded design. The actuator shall have spring return to close upon loss of power.000 inch pounds on dampers 24" to 36" diameter size.2. Blade seal shall occur when the gasket seats against the inside of the 11 gage housing wall. Manual: Manual actuators shall be worm geared actuator with handwheel. The complete pressure boundry (damper housing) shall be leak tested by the "Pressure Decay Method" in accordance with ASME N510-1995 "Reaffirmed". shall not be continuously welded.EXECUTION Cleveland Clinic Isolation Rooms Upgrade 23 41 33 . 4-23.
B.6 HIGH-EFFICIENCY PARTICULATE FILTRATION
. Actuator has aluminum base and cover.
C.3 A.000 inch pounds up to 22" diameter size dampers with a gear ratio of 30:1 (7. Round Bubble-Tight Isolation Dampers (Flat Blade Type) Dampers shall be positive seal.
E. Pressure readings are recorded once a minute until pressure decays to 75% of the test pressure or for 5 minutes. integral single phase reversible capacitor motors and shall be equipped with factory set limit switches. Weld joints and seams requiring only intermittent welds.9. All "Pressure Retaining" weld joints and seams shall be continuously welded with no pores allowed. high torque. all weld joints and seams shall be wire brushed and\or buffed to remove heat discoloration. The damper shall be tested in the closed position at 10" water gage and shall be bubble-tight when tested in accordance with ASME N509-1996 "Reaffirmed" paragraph 5. Rated output torque shall be 2. Nuclear Cleaning Handbook. The actuator shall also be equipped with a motor brake.3. with gear ratio of 40:1). Actuators 1. Shafts are minimum 3/4" diameter stainless steel rod with shaft seals.
D. The blade shall consist of two (2) 3/16" thick type 304 stainless steel plates with replaceable solid silicone gasket between them. Testing of Nuclear Air Treatment Systems". Electric: Electric rotary actuator shall have rugged. isolation type which shall be bubble-tight at the differential pressure of 10" water gage. The frame material shall be minimum 11 gage unpainted Type 304 Stainless Steel. As a minimum.7.4 A.
PART 3 . Actuator shall be fully lubricated and self-locking to hold at any position. such as reinforcement members.
and sealing edges of filter for air leaks according to pressure-decay method in ASME N510. whichever is higher. Install filter gages on filter banks with separate static-pressure taps upstream and downstream from filters. test.
END OF SECTION 234133
23 41 33 .
3. Do not operate fan system until filters (temporary or permanent) are in place. clean filters. assemblies. FIELD QUALITY CONTROL Manufacturer's Field Service: Engage a factory-authorized service representative to inspect. including connections. Install filter gage for each filter bank. E.3. C. HEPA Filters: Pressurize housing to a minimum of 3. adjusting. and adjust components. and equipment installation. Test for leakage of unfiltered air while system is operating.
INSTALLATION Position each filter unit with clearance for normal service and maintenance. and equipment installations. 2. Install filters in position to prevent passage of unfiltered air. Prepare test and inspection reports. including connections. (750 Pa) or to designed operating pressure.
B.1 A. Mount filter gages on outside of filter housing or filter plenum in an accessible position.3 A.g.
Air filter will be considered defective if it does not pass tests and inspections. Manufacturer's Field Service: Engage a factory-authorized service representative to inspect components. 1.0-inch w. Install filter-gage static-pressure tips upstream and downstream from filters. Perform tests and inspections. CLEANING After completing system installation and testing. and to assist in testing. clean filter housings and install new filter media. and balancing air-handling and air-distribution systems. E. D. Adjust and level inclined gages. B. Replace temporary filters that were used during construction and testing with new.
Tests and Inspections: 1.2 A. door seals. and test housing joints.
D.7 HIGH-EFFICIENCY PARTICULATE FILTRATION
. assemblies.
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