Specifications
CONNECTIONS – PLUMBING
42
To connect the solar cold and solar hot pipes to the solar storage tank:
Solar hot pipe connection
Remove the plastic cap from the solar hot inlet pipe end at the top of the solar storage tank.
Undo the compression nut and olive from the compression union and fit over the solar hot pipe
connection.
Fit the ½” x ½” nipple from the compression
union supplied to the solar hot inlet pipe end.
Connect the solar hot pipe (flow from the
collector) to the ½” x ½” nipple using the
compression nut and olive supplied.
Solar cold pipe connection
Remove the plastic cap from the solar cold
outlet pipe end at the top of the solar storage
tank.
Undo the compression nut and olive from the
compression union and fit over the solar cold
pipe connection.
Fit the ½” x ½” nipple from the compression union supplied to the solar cold outlet pipe end.
Connect the solar cold pipe (flow to the collector) to the ½” x ½” nipple using the compression nut and
olive supplied.
GAS INLET
The gas connection is made at the underside of the in-series gas booster. The pipe work must be cleared of
foreign matter before connection and purged before attempting to operate the water heater. An isolation
valve and disconnection union must be installed to allow servicing and removal of the water heater.
Note: Refer to the Gas Installations Standard AS 5601 or AS/NZS 5601.1 for the correct method of sizing
the gas supply pipe to the water heater. The pipe size selection must take into account the high gas input of
the in-series gas booster (refer to table on page 29) as well as all of the other gas appliances in the
premises.
Warning: Always isolate the in-series gas booster before pressure testing the gas supply system.
Disconnect the in-series gas booster after the isolating cock to prevent the risk of serious damage to the gas
control. The Vulcan warranty does not cover damage of any nature resulting from failure to observe this
precaution. Refer to rating label for gas types and pressures.
PRESSURE
RELIEF
VALVE
COMPRESSION
UNION
SOLAR
COLD PIPE
CONNECTION
PLASTIC CAP
(REMOVE &
DISCARD)
SOLAR
HOT PIPE
CONNECTION
SOLAR COLD & SOLAR HOT CONNECTIONS
SOLAR DRAIN BACK STORAGE TANK - 160