//Section 01 91 00, GENERAL COMMISSIONING REQUIREMENTS.// Section 09 91 00, PAINTING. //Section 13 05 41, SEISMIC RESTRAINT REQUIREMENTS FOR NON-STRUCTURAL COMPONENTS.// Section 22 31 11, WATER SOFTENERS. Section 22 67 21, WATER DEALKALIZING SYSTEM. Section 23 05 10, COMMON WORK RESULTS FOR BOILER PLANT AND STEAM GENERATION. Section 23 05 51, NOISE AND VIBRATION CONTROL FOR BOILER PLANT. Section 23 07 11, HVAC AND BOILER PLANT INSULATION. //Section 23 08 00, COMMISSIONING OF HVAC SYSTEMS.// //Section 23 08 11, DEMONSTRATIONS AND TESTS FOR BOILER PLANT.// Section 23 09 11, INSTRUMENTATION AND CONTROL FOR BOILER PLANT. Section 23 09 23, DIRECT-DIGITAL CONTROL SYSTEM OR HVAC. Section 23 21 11, BOILER PLANT PIPING SYSTEMS. Section 26 29 11, MOTOR CONTROLLERS. APPLICABLE PUBLICATIONS SPEC WRITER NOTE: Make material requirements agree with requirements specified in the referenced Applicable Publications. Verify and update the publication list to that which applies to the project, unless the reference applies to all mechanical systems. Publications that apply to all mechanical systems may not be specifically referenced in the body of the specification, but, shall form a part of this specification. The publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by the basic designation only. Where conflicts occur these specifications and the VHA standard will govern. American Society of Mechanical Engineers (ASME): Wrought Buttwelding Fittings Flanged, Threaded and Welding End PTC Test Code on Deaerators ASME Boiler and Pressure Vessel Code – BPVC Section for Construction of Pressure Vessels, Divisions 1 and 2
in the water level in the receiver. Float switches shall be adjustable to permit the controlled water level to be changed. Floats and connecting rods shall be copper, stainless steel, or bronze. Provide adjustable vacuum switches mounted on receiver tank to start and stop air pumps in response to vacuum requirements of the heating system. Air and water pump controls shall include alternators and also controls to automatically start the second air or water pump when the first pump fails to meet the air or water demand. Starters: Provide combination magnetic starters with fusible disconnect switches or circuit breakers. Provide low voltage control circuits (120-volt maximum). Indicating Lights: Provide red lights for each pump to show that the pump is running, green lights to show power is on. Manual Selector Switches: Provide "on-off-automatic" switch for each pump. Electrical Wiring: Shall be enclosed in liquid-tight flexible metal conduit. Wiring shall be suitable for 93 degrees C (199 degrees F) service. Control Cabinet: NEMA 250, Type 4 or better, enclosing all controls, with manual switches and indicating lights mounted on the outside of the panel. Attach to pump set with rigid steel framework unless other mounting is shown on the drawings. Accessories Required: Thermometer on receiver below minimum water level. Thermometer shall conform to requirements in Section 23 05 51, NOISE AND VIBRATION CONTROL FOR BOILER PLANT. Basket-type inlet strainer with bolted cover, designed for 275 kPa (40 psig), 100 degrees C (212 degrees F). Provide basket with 3.2 mm (1/8 inch) diameter perforations. Water level gauge on each compartment of receiver. Provide gauge cocks which automatically stop the flow of water when the glass is broken. Provide gauge glass protection rods and drain on lower gauge cock. Compound pressure/vacuum gauge which shall conform to requirements in Section 23 09 11, INSTRUMENTATION AND CONTROL FOR BOILER PLANT.