Building Code of the Philippines(1)

To exceed 30 days from the intended date 715 the

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Unformatted text preview: ndicating thereon the name of manufacturer or installer, kind and total number of kgs. of refrigerant contained in the system and field test pressure applied. 8.9 In refrigerating plants of more than 45 kg. refrigerant, masks and helmets shall be used. These shall be kept in a suitable cabinet outside the machine room when not in use. 8.10 Not more than 136 kgs. of refrigerant in approved containers shall be stored in a machine room at any given time. 8.11 Where ammonia is used, the discharge may be into a tank of water, which shall be used for no other purpose except ammonia absorption. At least one gallon of water shall be provided for every 0.4536 kg. of ammonia in the system. 8.12 Refrigerant piping crossing a passageway in any building shall not be less than 2.3 meters above the floor. 8.13 In a refrigerating system containing more than 9 kgs., stop valves shall be installed in inlets and outlets of compressors, outlets of liquid receivers, and in liquid and suction branch header. 8.14 Window type Acs shall be provided with drain pipe or plastic tubing for discharging condensate water into a suitable container. 8.15 Window type AC installed on ground floors of buildings shall not be less than 2.13 meters from the ground. 8.16 Wind type Acs shall be provided with exhaust ducts if the exhaust is discharged into corridors/hallways/arcades/sidewalks etc. 8.17 Window type ACs installed along corridors/hallways above the first floor shall not be less than 2.13 meters above the floor level. 9. Water Pumping for Buildings/Structures: 9.1 Installation of pumping equipment to supply buildings/structures from existing water supply system shall only be allowed if there is always water in the mains. 9.2 To maintain water pressure in all floors of a building/structure, the following systems may be used: 9.2.1 Overhead tank supply - may be installed above the roof supported by the building/structure or on a separate tower. 9.2.1.1 Water tanks shall be provided with a vent and an overflow pipe leading to a storm drain and shall be fully covered. 9.2.2 Pneumatic tank - an unfired pressure vessel, initially full of air, into which water from mains is pumped. 9.2.2.1 A suitable pressure which shall stop the pump when pressure required is attained. 9.2.2.2 Tanks shall be designed for twice the maximum total dynamic pressure required. 9.2.2.3 An air volume control device shall be installed to maintain correct air volume inside the tank. 10. Pipings: 10.1 Piping shall, as much as possible, run parallel to building walls. 10.2 Grouped piping shall be supported on racks, on either horizontal or vertical planes. 10.3 Piping on racks shall have sufficient space for pipe or chain wrenches so that any single line can be altered/repaired/replaced without disturbing the rest. 10.4 Piping 100 millimeters in diameter and above shall be flanged. Smaller sized pipes may be screwed. 10.5 Piping subjected to varying temperatures shall be provided with expansion joints. 10.6 Galvanized pipin...
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This note was uploaded on 09/22/2013 for the course ARIDBE AR taught by Professor Any during the Fall '12 term at Mapúa Institute of Technology.

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