Appendix K - Hydraulic and Wet Fire Services Report

                                                             BRW Enterprises (Qld) Pty Ltd
“DA Report”, PF 80 Cooroy Care Farm Development for LCC.                           Page : 9
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1.5 HOT WATER SERVICES

The hot water system shall comprise a flow and return pipework system provided to each building.
The hot water shall be generated from a central bank of LPG gas fired hot water units.

The hot water services shall be in accordance with the following Australian Standards :-
                AS 1167            Welding and Brazing – Filler Metals
                AS 1345            Identification of the Contents of Piping, Conduits and Ducts
                AS 1432            Copper Tubes for Plumbing, Gasfitting and Drainage Applications.
                AS 1530.4          Methods for Fire Tests on Building Materials, Components and
                                   Structures. Part 4 - Fire Resistance Tests of Elements of Building
                                   Construction
                AS 1628            Water Supply - Copper Alloy Gate, Globe and Non-Return Valves.
                AS 1718            Water Supply - Copper Alloy Screw Down Pattern Taps –
                                   Specified by Dimensions
                AS 2129            Flanges for Pipes, Valves and Fittings
                AS 2638            Sluice Valves for Waterworks Purposes
                AS 3500            National Plumbing and Drainage Code – Compendium
                AS 3500.1.2        Water Supply
                AS 3500.4.2        Hot Water Supply Systems
                AS 3688            Water Supply – Copper and Copper Alloy Body Compression and
                                   Capillary Fittings and Threaded-End Connectors.

Hot water units shall provide water at a minimum temperature of sixty-five (65°) Celsuis for outlet
flow to the draw-off points or fixtures. Hot water heaters shall be designed as fully mains pressure
types, complete with all necessary stop valves, expansion valves and pressure relief valves and
safetrays to ensure the installation is in accordance with the regulatory standards.

Hot water pipework shall be copper tube Type “B”. No pressurised services in slabs. All hot water
pipes shall be insulated with preformed sectionalised fibreglass insulation wrapped with sisalation.
The minimum insulation thickness to hot water piping shall be 25mm for pipes less than 50mm
nominal bore and 38mm for pipes of 50mm and above.

Thermostatic mixing valves shall be designed to service all fixtures within accommodation areas,
including all personal washing facilities within the complex. Thermostatic mixing valves shall be
located such that future maintenance and testing can be effected quickly and easily.




                                                                               Document : 14,967/da-rep/A