Oregon Administrative Rules › Chapter 333 - OREGON HEALTH AUTHORITY, PUBLIC HEALTH DIVISION › Division 535 - NEW CONSTRUCTION AND ALTERATIONS OF EXISTING HOSPITALS › Section 333-535-0300 - Mechanical Requirements

Current through Register Vol. 63, No. 7, July 1, 2024
(1) General
			 standards:
(a) In addition to requirements of
			 this rule, the mechanical system serving hospitals and hospital outpatient
			 facilities may be subject to general review for overall efficiency and life
			 cycle cost, although no requirements will be enforced beyond those included in
			 this rule. Recognized engineering procedures are recommended to achieve
			 specific requirements and performance for the most economical and effective
			 results. Different geographic areas may have climate variations and use
			 conditions that would favor one system over another in terms of overall cost
			 and efficiency. In no case shall patient care or safety be sacrificed for
			 conservation. Construction shall comply with the Oregon Structural Specialty
			 Code (OSSC), the Oregon Mechanical Specialty Code (OMSC), the Oregon Plumbing
			 Specialty Code (OPSC), Oregon Fire Code (OFC), NFPA 90A, and NFPA 99 Health
			 Care Facilities as enforced by the State Building Codes Division and
			 Authorities having Jurisdiction. Responsibility for enforcement remains with
			 these authorities.
(b) The facility
			 shall include provisions for recovery of waste cooling and heating energy
			 (ventilation, exhaust, water and steam discharge, cooling towers, incinerators,
			 etc.) in compliance with local codes.
(c) Recirculating room units (such as
			 induction units and unit ventilators) may be used in individual rooms for
			 heating and cooling purposes. Outdoor air requirements shall be met by separate
			 air handling systems with proper filtration, as noted in Table 3.
(d) To reduce utility costs, facility design
			 shall include consideration of recognized procedures such as variable air
			 volume systems, energy recovery devices, load shedding, programmed controls for
			 unoccupied periods including nights and weekends, and use of natural
			 ventilation where site and climatic conditions permit. Systems with excessive
			 operational or maintenance costs that would negate long-range energy savings
			 should be avoided.
(e) To the
			 extent possible, this rule has been written to permit maximum use of simplified
			 systems including that for variable air volume (VAV). However, care must be
			 taken in design to avoid possibility of large temperature differentials, high
			 velocity supply, excessive noise, and stagnation. Air supply, return, and
			 exhaust in rooms may vary in response to room load provided the total and
			 outside air change rates stay within the limits of Table 2, Note 4.
			 Construction drawing submissions shall include information listing the actual
			 supply air and outside air change rates provided to the areas listed in Table 2
			 at maximum and minimum terminal unit settings.
(f) To maintain asepsis control, air supply,
			 return, and exhaust quantities should generally be controlled to ensure
			 movement from "clean" to "less clean" areas and maintain directional air
			 movement within the limits of Table 2, Note 2. Special considerations shall be
			 given to sterile areas such as Operating Rooms, Delivery Rooms, and Central
			 Supply.
(g) Variable air volume
			 systems serving inpatient facilities or surgical outpatient facilities shall
			 include controls or equipment necessary to ensure that minimum outside air
			 quantities in cubic feet per minute and the resulting space pressure
			 relationships are maintained over the range of fan operation. Examples of
			 methods to ensure the delivery of minimum quantities of outside air include the
			 installation of airflow monitoring stations or dedicated supply fans.
(h) Prior to acceptance of the facility, all
			 mechanical systems shall be tested, balanced and operated to demonstrate to the
			 design engineer or his or her representative that the installation and
			 performance of these systems conform to the design intent and requirements
			 herein. Test results shall be documented for maintenance files and be available
			 for inspection by Division's surveyors or Authorities having
			 Jurisdiction.
(i) Functional
			 performance tests shall be provided for projects that include the addition or
			 modification of major equipment and systems. These tests shall ensure that
			 mechanical systems operate in accordance with the design intent and in
			 compliance with requirements herein. Description of procedures and test results
			 for each functional performance test shall be documented to demonstrate to the
			 design engineer, or his or her representative, that systems operate in
			 accordance with the design intent. Documentation shall be included in the
			 maintenance files and be available for inspection by the Division's surveyors
			 or Authorities having Jurisdiction. Functional performance tests shall be
			 developed and performed for the following systems and system functions in
			 hospital inpatient facilities where applicable:
(A) Outdoor air ventilation system components
			 and control modes.
(B) Humidity
			 control components and control modes.
(C) Maintenance of space pressure
			 relationships through all modes of air handling system operation.
(D) Airborne infectious isolation and
			 protective environment room ventilation and pressurization monitoring
			 systems.
(E) Smoke evacuation
			 systems serving anesthetizing areas.
(F) Fire/smoke damper controls.
(G) Boiler and generator fuel oil supply
			 transfer systems including alarms.
(H) Laboratory hood systems.
(j) Upon completion of the
			 contract, the facility shall be furnished and retain on file a complete set of
			 building drawings, manufacturers' operating, maintenance and preventive
			 maintenance instructions, parts lists and procurement information with model
			 numbers, and a description of the operation of each piece of equipment.
			 Responsible operating staff persons shall also be provided with instructions in
			 the proper operational use of systems, equipment, and controls. This
			 information shall be available for inspection by the Division's surveyors or
			 Authorities having Jurisdiction.
(k) If inpatient facility system
			 modifications affect greater than 25 percent of the system capacity, designers
			 shall obtain and utilize pre-renovation water/air flow rate measurements to
			 verify that sufficient capacity is available and that renovations have not
			 adversely affected flow rates in non-renovated areas.
(l) Psychiatric patient room fixtures and
			 equipment shall be tamper resistant and shall be selected to meet the
			 requirements of the Patient and Staff Safety Assessment. Equipment shall be
			 selected to minimize the need for maintenance within the room. Refer to OAR
			 333-535-0061  for additional requirements.
(m) Identification. All piping, including
			 heating ventilation, gas, vacuum and air conditioning (HVAC) except control
			 line tubing, shall be color coded or otherwise marked for easy identification.
			 Major equipment shall be labeled. All valves shall be tagged. Identification
			 and valve schedules shall be provided to the facility for permanent record and
			 reference.