Unit installation

10
CONNECTIONS – PLUMBING
All plumbing work must be carried out by a qualified person and in accordance
with the requirements of the Standard AS/NZS 3500.4, and all local codes and
regulatory authority requirements. In New Zealand, the installation must conform
to Clause G12 of the New Zealand Building Code.
CONNECTION SIZES
 Hot water connection: Rp 3/4.
 Cold water connection: Rp 3/4.
 Solar hot (from collector) connection: DN15 compression fitting.
(solar hot inlet to tank Rp 3/4)
 Solar cold (to collector) connection: DN15 compression fitting.
(solar cold outlet from tank: Rp 3/4)
 Relief valve connection: Rp 3/4.
 Bleed valve connection: G1.0B.
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 an approved thread sealant such as Teflon tape
on all other threaded joints.
Refer to the Owners Guide and Installation Instructions supplied with the solar
storage tank for the plumbing arrangement to be used for connecting the cold
water supply line to the solar water heater system. The plumbing arrangements
for the solar cold and solar hot pipes are shown on page 9.
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.
This water heater has either a plastic dip
tube or fitting liner in the inlet and outlet
fittings (see diagram). These must be in
place for the water heater to function
properly. Do not remove or damage them
by using heat nearby. They will be pushed
into the correct position as the fitting is
screwed in.