Connections - Plumbing - Solahart Streamline Gas Owner's Manual

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 Gas Installations
Standard AS 5601 and local authority requirements.
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
to "Mains Water Supply"
are shown on page 28.
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.
CONNECTIONS – PLUMBING
on page 22. The plumbing arrangements for the solar hot and solar cold pipes
"Hot Water Delivery"
OR
31
on page 23 and