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Specification 541 Rev. 1 – General Construction of HVAC Installations

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Specification 541 Rev. 1 – General Construction of HVAC Installations TABLE OF CONTENTS 1.0 SCOPE .............................................................................................................................................. 5 2.0 STANDARDS, CODES AND SPECIFICATIONS ............................................................................. 6 2.1 GENERAL SPECIFICATIONS ......................................................................................................................... 6 2.2 STANDARDS AND CODES ........................................................................................................................... 6 2.3 CERTIFICATION ................................................................................................................................................ 6 3.0 SERVICE CONDITIONS .................................................................................................................. 7 3.1 ENVIRONMENTAL CONDITIONS .............................................................................................................. 7 4.0 GENERAL REQUIREMENTS ........................................................................................................... 8 4.1 DRAWINGS AND SPECIFICATIONS .......................................................................................................... 8 4.2 MATERIAL, WORKMANSHIP AND SUITABILITY .................................................................................. 9 4.3 AREA CLASSIFICATION ................................................................................................................................. 9 4.4 DEGREES OF PROTECTION ........................................................................................................................ 10 4.5 EQUIPMENT LOCATIONS........................................................................................................................... 10 4.6 REFRIGERANT CHOICE ................................................................................................................................ 10 5.0 EQUIPMENT .................................................................................................................................. 11 5.1 AIR HANDLING UNITS ................................................................................................................................ 11 5.1.1 Design ............................................................................................................................................................ 11 5.1.2 Technical specifications ........................................................................................................................... 11 5.1.3 Casing ............................................................................................................................................................. 11 5.1.4 Fresh air intake / recirculation section .............................................................................................. 12 5.1.5 Filter section ................................................................................................................................................ 12 5.1.6 Fan section ................................................................................................................................................... 13 5.1.7 Heating coil .................................................................................................................................................. 13 5.1.8 Electric pre heater ...................................................................................................................................... 13 5.1.9 Water heating coil ..................................................................................................................................... 13 5.1.10 Cooling Coil ................................................................................................................................................. 14 5.2 DUCT HEATER ................................................................................................................................................ 14 5.2.1 Design ............................................................................................................................................................ 14 5.2.2 Technical specifications ........................................................................................................................... 14 5.2.3 Construction ................................................................................................................................................ 14 5.2.4 Electrical part ............................................................................................................................................... 15 5.2.5 Maintenance ................................................................................................................................................ 15 5.3 LOCAL INDOOR RECIRCULATION UNITS (FAN COIL UNITS) ...................................................... 15 5.4 MIST ELIMINATOR ........................................................................................................................................ 15 5.4.1 Design ............................................................................................................................................................ 15 5.4.2 Technical specifications ........................................................................................................................... 16 5.4.3 Installation .................................................................................................................................................... 16 5.4.4 Accessibility .................................................................................................................................................. 16 5.4.5 Condensate drainage ............................................................................................................................... 16 5.5 SOUND ATTENUATORS .............................................................................................................................. 16 5.5.1 Design ............................................................................................................................................................ 16 5.5.2 Technical specifications ........................................................................................................................... 16 5.5.3 Frame .............................................................................................................................................................. 16 5.5.4 Baffle plates ................................................................................................................................................. 16 5.5.5 Assembly ....................................................................................................................................................... 17 Neptune Energy Netherlands B.V. Specification 541 rev. 1 Page 2 of 29 5.6 BALANCING DAMPERS ............................................................................................................................... 17 5.6.1 Design ............................................................................................................................................................ 17 5.6.2 Technical specifications ........................................................................................................................... 17 5.6.3 Installation .................................................................................................................................................... 17 5.7 SHUT OFF DAMPER ...................................................................................................................................... 17 5.7.1 Design ............................................................................................................................................................ 17 5.7.2 Technical specifications ........................................................................................................................... 17 5.7.3 Installation .................................................................................................................................................... 18 5.8 NON RETURN DAMPERS ........................................................................................................................... 18 5.8.1 Design ............................................................................................................................................................ 18 5.8.2 Technical specifications ........................................................................................................................... 18 5.8.3 Installation .................................................................................................................................................... 18 5.9 PRESSURE RELIEF DAMPERS..................................................................................................................... 18 5.9.1 Design ............................................................................................................................................................ 18 5.9.2 Technical specifications ..........................................................................................................................
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