CONNECTIONS – PLUMBING
28
SOLAR 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.
The solar cold outlet and solar hot inlet connections are located at the top of the solar storage tank.
Notes:
•
It is important not to cross connect the solar cold and solar hot pipes to the incorrect connections.
The solar cold pipe connects to the bottom of the solar collectors and the solar hot pipe
connects to the top of the solar collectors on the opposite side to both the solar cold pipe
connection and the hot sensor connection.
The solar hot inlet connection is located in the centre of the top of the solar storage tank (the
connection is marked by a label on top of the storage tank).
The solar cold outlet connection is located toward the outer edge of the top of the solar storage
tank (the connection is marked by a label on top of the storage tank).
•
Connect the solar pipes to the solar storage tank using only the fittings supplied.
To connect the solar cold and solar hot pipes to the solar storage tank:
•
Remove the compression nut and olive from the
solar hot inlet fitting at the top of the solar storage
tank. Remove the rubber washer from the union
and discard.
•
Remove the plastic cap from the solar cold outlet
pipe end at the top of the solar storage tank.
•
Fit the compression union supplied to the solar cold
outlet pipe end.
•
Connect the solar cold pipe (flow to the collector) to
the nipple in the solar cold outlet using the
compression nut and olive supplied.
•
Connect the solar hot pipe (flow from the collector)
to the nipple in the solar hot inlet using the
compression nut and olive supplied.
AUXILIARY PUMP
The maximum height of the solar installation from the base of the solar storage tank to the top of the
solar collectors is 9 m. The pump supplied with the solar storage tank will not circulate closed circuit
fluid through heights greater than 9 m and solar gain will not be achieved.
For heights greater than 9 m, an auxiliary pump (kit PN 299914) must be installed. The installation of an
auxiliary pump will enable a maximum height of 18 m to be achieved. Refer to
“Auxiliary Pump”
on
page 31.
solar hot pipe
connection
solar cold pipe
connection
compression nut & olive
plastic cap
(discard)
rubber washer
(discard)
