Rheem GAS BOOSTED SOLAR WATER HEATER Specifications download pdf (Page 36)

CONNECTIONS – PLUMBING

CONNECTION SIZES

Hot water connection: RP¾/20

Cold water connection: DN20 compression fitting (cold water inlet of tank: RP¾/20).

Solar hot (from collector) connection: DN15 compression fitting.

(solar hot water inlet of tank: RP¾/20).

Solar cold (to collector) connection: DN15 compression fitting.

Relief valve connection: RP½/15.

Gas inlet: RP½/15.

Bleed valve connection: G1.0B.

All plumbing work must be carried out by a qualified person and in accordance with the Plumbing Standard

AS/NZS 3500.4 and local authority requirements.

All gas work must be carried out by a qualified person and in accordance with the Australian and New

Zealand Gas Installations Standard AS/NZS 5601 and local authority requirements. In New Zealand, the

installation must conform with the Code of Practice for installation of Gas Appliances NZS 5261.

Note: The solar water heater should not be installed as part of a circulated hot water flow and return system

in a building. The benefits of solar gain will be significantly reduced and energy gained from the sun lost

through the pipe work. If a circulated flow and return system is required, it is necessary to bypass the solar

water heater and install a secondary water heater supplied from the solar water heater and connected to the

hot water flow and return line. Refer to “Circulated Hot Water Flow and Return System” on page 27.

WATER INLET AND OUTLET

All pipe work must be cleared of foreign matter before connection and purged before attempting to operate

the water heater. All olive compression fittings must use brass or copper olives. Use thread sealing tape or

approved thread sealant on all fittings.

An isolation valve and non return valve must be used on the cold water line to the water heater. A non-return

valve must be fitted on the cold water supply to this water heater in compliance with Clause 5.9.1 of AS/NZS

3500.4. Due to the higher temperatures generated by solar water heaters, an additional effective back-flow

prevention device also should be fitted as an extra safeguard. Valve manufacturer RMC recommends Dual

Check Valve No N7150, as being suitable for this application.

An acceptable arrangement is shown in the diagram. Refer also to “Hot Water Delivery” on page 26 and to

“Mains Water Supply” on page 25. The plumbing arrangements for the solar hot and solar cold pipes are

shown on page 31.









A disconnection union must always be provided at the cold water inlet, solar cold water outlet, solar hot

water inlet and hot water outlet on the water heater to allow for disconnection of the water heater.

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 51 52

No comments

Rheem GAS BOOSTED SOLAR WATER HEATER Specifications Page 36