July 22, 1994

Contract #TW0592

**SPECIAL** **SPECIFICATION**

**SECTION 13943-S**

**[CONTROLS]{.underline}**

**LIST OF ARTICLES TITLES**

[Page]{.underline}

[PART I - GENERAL]{.underline}

1.01 Scope 2

1.02 Responsibility 2

1.03 Submittals 2

[PART 2 - PRODUCTS]{.underline}

2.01 General 3

2.02 FID (Field Interface Device) 3

2.03 Sensor, Switch, And Control Device 3

2.04 Control Damper 3

2.05 Control Valve 4

2.06 Instrument Air Source 4

2.07 Instrument Air Piping 5

2.08 Wiring 5

2.09 Control Panel 6

[PART 3 - INSTALLATION]{.underline}

3.01 General 6

3.02 FID (Field Interface Device) 6

3.03 Sensor, Switch, And Control Device 6

3.04 Control Damper 7

3.05 Control Valve 7

3.06 Instrument Air Piping 7

3.07 Wiring 8

3.08 Control Panel 8

3.09 Labels 9

**SPECIAL** **SPECIFICATION**

**SECTION 13943-S**

**[CONTROLS]{.underline}**

[PART 1 - GENERAL]{.underline}

1.01 [SCOPE]{.underline}

> Instrumentation and control systems required for HVAC systems and
> Sandia National Laboratories\' Energy Management and Control System
> (EMCS).
>
> (Note that the EMCS is referred to as the Plant Control Center
> \[PCC\]. Remote control units, called Field Interface Devices \[FID\],
> located in individual buildings provide local monitoring and control
> functions. Each FID communicates with an existing PCC Host Computer in
> Building 887 or Building 858 for remote monitoring and control
> purposes.)

1.02 [RESPONSIBILITY]{.underline}

> A. The contractor shall furnish, install, adjust, calibrate, and make
> ready for use all sensors, switches, relays, controllers, control
> dampers and valves, wiring, instrument air piping, and accessories
> indicated on the drawings and required for a complete and totally
> functioning HVAC control system and EMCS.
>
> B. All required PCC programming will be provided by Sandia National
> Laboratories (SNL).
>
> C. All contractor furnished products and labor shall have a one-year
> warranty.
>
> D. During warranty, all defective products shall be repaired or
> replaced, and all readjustments necessary to accomplish the specified
> sequences of operation shall be at no cost to SNL.
>
> E. Provide labor, material, equipment, etc., required to facilitate
> the commissioning process. Perform form tests and verification
> procedures required by the commissioning process when requested by the
> Commissioning Authority and directed by the General Contractor. See
> Section 15995.

1.03 [SUBMITTALS]{.underline}

> A. Provide submittals in accordance with Section 01300 of these
> specifications.
>
> B. Provide calibration data and procedures for all sensors, switches,
> and controllers as part of submittals.
>
> C. Provide control diagrams in the form of shop drawings for each
> system or sub-system. Use the control diagrams included in the
> contract drawings for this purpose. Each diagram shall be altered to
> show all proposed controls and controlled devices, together with name,
> catalog number, set point, and action at each end of the throttling
> range.
>
> D. The contractor will be furnished reproducible copies of all
> contract drawings for use in preparing his shop drawings.

[PART 2 - PRODUCTS]{.underline}

2.01 [GENERAL]{.underline}

> A. All materials and components used shall be standard components,
> regularly manufactured for this type application and not custom
> designed especially for this project.
>
> B. All products shall be as specified on the drawings and in these
> specifications or approved equals.

2.02 [FID]{.underline}

> FIDS will be provided by SNL.

2.03 [SENSOR, SWITCH, AND CONTROL DEVICE]{.underline}

> A. Room, duct, and immersion sensors shall provide an output signal
> that varies continuously with the sensed media within a fixed range
> specified on the drawings. Output shall be linear with negligible
> hysteresis.
>
> B. Sensor accuracy shall be as indicated on the drawings and, when
> part of a control loop, shall be sufficient to maintain the controlled
> variable within limits indicated on the drawings.
>
> C. Controllers shall have variable set point and adjustable
> proportional band unless indicated otherwise on the drawings.
>
> D. Pneumatic room thermostats shall be a two pipe non-bleed relay type
> with visible temperature scale and adjustable set point scale with a
> permanently affixed external adjustment suitable for occupant control
> of room temperature without the use of tools.
>
> E. Pneumatic zone thermostats shall be similar to room thermostats
> except the adjustable set point scale shall be concealed with an
> internal means of set point adjustment.

2.04 [CONTROL DAMPER]{.underline}

> A. Damper shall be low leakage type, Ruskin CD-50 series airfoil
> unless indicated otherwise on the drawings.
>
> B. Damper shall be a standard louver type of heavy duty construction
> with each leaf reinforced. Damper shall be provided with non-ferrous
> self lubricating bearings and trunions.
>
> C. Damper shall be of aluminum unless indicated otherwise on the
> drawings.
>
> D. Damper frame, blades, shafts, linkage, bearings, and trunions shall
> be non-corrosive.
>
> E. Damper blade edge seals shall be replaceable and of vinyl, silicone
> rubber, neoprene, or other synthetic elastomer.
>
> F. Damper shall have a published leak rate not exceeding 5 scfm per
> square foot at 1.5 inches W.C. differential pressure unless indicated
> otherwise on the drawings.
>
> G. Modulating dampers shall have opposed acting blades, and
> two-position dampers shall have parallel acting blades unless
> indicated otherwise on the drawings.
>
> H. Each damper section shall have an individual motor, derated so
> there is 10 percent over-capacity available over published rating for
> dust and corrosion buildup and shall be additionally sized to operate
> against the static pressure of the systems.

2.05 [CONTROL VALVE]{.underline}

> A. Control valves 2 inches or smaller shall be screwed pattern with
> bronze body unless indicated otherwise on the drawings.
>
> B. Control valves larger than 2 inches shall be flanged with cast iron
> body unless indicated otherwise on the drawings.
>
> C. Valve pressure-temperature ratings and materials of construction
> shall be suitable for the intended service. Valves intended for steam
> service shall be rated for 350oF.
>
> D. All 2-way control valves shall be capable of tight shut-off against
> total system differential pressure.
>
> E. Modulating control valves shall be fitted with equal percentage or
> linear characteristic modulating plugs as the service requires.
>
> F. Valve sizing data, including capacity index, shall be indicated on
> the control submittal diagrams.
>
> G. Visible position indicators shall be provided on all automatic
> valves.

2.06 [INSTRUMENT AIR SOURCE]{.underline}

> A. A 1/2-inch valved tap is provided in the basement mechanical room
> to supply 90 psig Nitrogen for pneumatic actuators. See Drawing 104530
> M19. The Contractor shall field route Nitrogen to each valve utilizing
> pneumatic actuators.

2.07 [INSTRUMENT AIR PIPING]{.underline}

> A. Instrument air piping shall be copper, plastic, or stainless steel.
> Aluminum tubing may be used only if approved prior to the start of any
> work.
>
> B. Copper tubing shall be hard drawn with sweated fittings or soft
> drawn-stretched and straightened.
>
> C. Plastic tubing shall be flame retardant polyethylene. Plastic tube
> bundles shall be provided with a factory installed PVC vinyl jacket.
>
> D. All instrument air piping shall be 1/4\" O.D. unless approved prior
> to the start of any work.

2.08 [WIRING]{.underline}

> A. All wiring shall comply with the electrical sections of these
> specifications.
>
> B. Plant Control Center Wiring
>
> 1\. Field wiring for each analog sensor shall be two conductor No. 18,
> twisted AWG, copper, 300 volt, thermoplastic.
>
> 2\. Field wiring for each digital input device shall be #16 type THHN.
> Wiring shall be blue.
>
> 3\. Field wiring for each digital output device shall be #14 type
> THHN. Wiring shall be black.
>
> 4\. All wiring shall be installed in electrical-metallic tubing (EMT)
> with watertight compression-type threadless fittings or rigid
> galvanized steel conduit (RC) or Intermediate Metal Conduit (IMC).

2.09 [CONTROL PANEL]{.underline}

> A. Panels shall be totally enclosed, 16 gage (min.) steel, with hinged
> locking door and door stiffeners.
>
> B. Panels shall have electrical connections prewired to terminal
> strips using same numbers shown on the drawings.
>
> C. Each panel shall contain flushmounted on the cover all 3 1/2-inch
> dial thermometers and other devices as indicated on the drawings.

[PART 3 - INSTALLATION]{.underline}

3.01 [GENERAL]{.underline}

> Install all FIDS, sensors, switches, control devices, conduit and
> wire, and instrument air piping indicated on the drawings and required
> for a complete and operational temperature control system.

3.02 [FID]{.underline}

> FIDS shall be in dry interior areas of buildings and as indicated on
> drawings. Do not install FIDS near heat generating devices.

3.03 [SENSOR, SWITCH, AND CONTROL DEVICE]{.underline}

> A. All sensor assemblies shall be readily accessible and adaptable to
> each type of application in such a manner as to allow for quick, easy
> replacement and servicing without special tools or skills.
>
> B. All sensors and switches installed outdoors shall be installed in
> NEMA 3R enclosures.
>
> C. Install sensors in locations which will provide a correct
> measurement of the sensed media. Do not locate sensors in dead air
> spaces or positions obstructed by ducts, equipment, etc. The location
> shall be within the vibration and velocity limits of the sensing
> element. Use an extended surface element when required to properly
> sense the average temperature or pressure, etc., securely mounted and
> positioned to measure the best average temperature, etc. Thermally
> isolate elements from brackets and supports. Securely seal ducts where
> elements or connections penetrate ducts.
>
> D. Provide all sensors measuring temperatures in pipes with
> thermometer wells. Where piping is smaller than the length of the
> well, install the well in the piping at elbows to affect proper flow
> across the entire area of the well. Install wells either looking
> upstream or downstream. Provide suitable thermal transmission material
> within the well to speed the response of temperature measurement.
> Provide wells with sealing nuts to contain the thermal transmission
> material and allow for easy replacement. Well shall not restrict flow
> area to less than 70 percent of the line-size-pipe normal flow area.
>
> E. All pressure sensors and switches, including differential pressure
> sensors and switches, installed on steam lines shall be protected by
> pigtail siphons installed between the sensor element and the steam
> line.
>
> F. Pressure sensors and switches, including differential pressure
> sensors and switches, installed on steam or liquid lines shall have an
> isolation valve installed between each sensor and its pressure source.
>
> G. Duct thermometers with a minimum 3-inch dial shall be installed
> upstream and downstream of each duct heat exchange device and adjacent
> to each duct mounted temperature sensor. Range shall match
> application.
>
> H. Room thermostats and temperature sensors shall be wall mounted
> 5\'-6\" above the floor.
>
> I. All thermostats or sensors located on exterior building walls shall
> be insulated from the wall surface on a 1-1/2 inch thick block of
> rigid insulation and shrouded by a cover that is closed on the top,
> sides, and front but open at the bottom for free air circulation.
>
> J. Mount all controllers in control panels so that all control
> adjustments can be made at a control panel.

3.04 [CONTROL DAMPER]{.underline}

> A. Control dampers shall be installed per the ductwork sections of
> these specifications.
>
> B. Damper motors in plenums shall be mounted on damper frames.
>
> C. Motors shall be accessible for servicing.
>
> D. Motors located outside shall be mounted in a position to allow for
> condensation drainage.
>
> E. When two or more dampers are intended for inter-related operation,
> they shall be connected wherever possible through mechanical
> connections operating on easily movable swivel joints and shall not
> depend upon parallel operation of separate damper motors.

3.05 [CONTROL VALVE]{.underline}

> Control valves shall be installed per the piping sections of these
> specifications.

3.06 [INSTRUMENT AIR PIPING]{.underline}

> A. Piping in the equipment rooms shall be installed exposed, securely
> attached to the structure or to the equipment and run parallel or at
> right angles to the structure.
>
> B. Piping on new construction to all equipment outside of the
> equipment rooms shall be concealed.
>
> C. Piping in old construction may be run exposed except where easy
> access permits concealment.
>
> D. All piping shall be securely supported by the structure or
> equipment using hangers of the clamp type.
>
> E. Piping shall be offset around all beams, girders, etc.
>
> F. Piping SHALL NOT be installed through the sheet metal ducts or in
> fresh air intakes.
>
> G. Piping installed outside shall be pitched toward the building, with
> suitable drip legs inside, for condensation drainage.
>
> H. Unsheathed plastic tubing shall be installed in an enclosed raceway
> system such as Wire-mold, National Electric Product, or EMT, except
> final connections can be made with a maximum of 18\" of exposed
> plastic tubing.
>
> I. Plastic tubing for enclosed control panel piping shall be installed
> parallel or at right angles to the panel configuration.
>
> J. All piping shall be provided with pressure gages at the final
> control element and at the controller.
>
> K. Air pressure gages, size 1-1/2\" shall be installed on all
> connections to pneumatic controlled valves, damper motors,
> thermostats, control devices, etc., so that the operation of each
> device can be checked. The range of each gage shall match the
> application. Gages are not required where room thermostats are flush
> mounted with concealed connecting tubing.
>
> L. Do not install piping in same conduit with electrical wires.

3.07 [WIRING]{.underline}

> A. All wiring shall comply with the electrical sections of these
> specifications.
>
> B. Plant Control Center Wiring
>
> 1\. Wiring from sensors and control devices shall be to terminal
> strips within the FID, control panel, or Motor Control Center, as
> shown on the drawings.
>
> 2\. All wiring runs shall be continuous. Splices will not be
> acceptable.
>
> 3\. Each wire shall be labeled at both ends per the drawings.
>
> 4\. Shielded cable shall be grounded at sensor only.
>
> 5\. All conduit shall be painted to match surroundings. One-inch
> purple vinyl tape shall be installed on conduits within six inches of
> all J-boxes, sensors, and panels to identify PCC conduits.
>
> 6\. Wiring shall not be installed in the same conduit with instrument
> air piping.

3.08 [CONTROL PANEL]{.underline}

> Install control panels where indicated on drawings. Enclosures shall
> be securely mounted to the floor, wall, or equipment with unistrut
> supports.

3.09 [LABELS]{.underline}

> A. Each control device shall be provided with an engraved laminated
> phenolic resin label, black background with white letters.
>
> B. Nomenclature shall correspond to that shown on the contract
> drawings.

END OF SECTION

EXCEPT FOR ATTACHMENTS