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The supply system is split into several zones supplying a maximum of 12 floors each. This ensures adequate water pressure on all floors without using pressure relief valves.
Indirect System of Hot Water Supply. Hot water system components . 1. Expansion valve. Expansion devices in hot water systems are designed as a safe means for discharging water when system operating parameters are exceeded, i.e. in conditions of excess pressure and/or temperature.
Indirect System of Cold Water Supply •The indirect system of cold water supply has only one drinking water outlet, at the sink. The cold water storage cistern has a minimum capacity of 230 liters, for location in the roof space. In addition to its normal supply function, it provides an adequate emergency
This document discusses different methods of hot water supply systems. It describes electric, gas, solar, and central hot water heating systems. It also explains the differences between direct and indirect central hot water systems.
When water of a temporary hard nature is heated to bween 49°C and 71°C, the lime is precipitated and causes furring of the vessel containing the water. The indirect system prevents furring of the boiler, primary flow and return pipes, and hot water storage cylinder.
1. Assessment & estimation of demands. 2. Supply scheme & schematic. 3. Water storage requirements. 4. Piping layout. 5. Pipe sizing. 6. Pump system design. The systems must comply with Water Authority (WSD) requirements. General principles for installing plumbing works (from WSD Plumbing Installation Handbook)
direct cross connection is a piping system connecting a raw water supply, used for industrial fire fighting, to a municipal water system. • An indirect cross connection is an arrangement whereby unsafe water, or other liquid, may be blown, siphoned or otherwise diverted into a safe water system.
