30
INSTALLATION – ELECTRICAL & ELECTRICAL CONNECTIONS
Warning:
The power supply to the solar water heater must not be switched on until the solar water
heater is filled with water and a satisfactory megger reading is obtained.
All electrical work and permanent wiring must be carried out by a qualified person and in accordance with the
Wiring Rules AS/NZS 3000 and all local codes and regulatory authority requirements.
The solar control unit is designed to be mounted on the side of the solar storage cylinder above the solar
cold water outlet. The solar control unit is supplied with a 1.8 metre power cord and requires a 240 V 50 Hz
general purpose outlet (GPO) to be located within 1.2 metres of the installation. The GPO must have a
continuous power supply and is required to be weatherproof if installed outdoors. For full installation details,
refer to the Installation Instructions supplied with the solar controller kit.
If the power supply cord or plug is damaged, it must be replaced by an authorised person in order to avoid a
hazard. The power supply cord and plug must be replaced with a genuine replacement part available from
the manufacturer.
Note:
This solar water heater will only operate on a sine wave at 50 Hz. Devices generating a square wave
cannot be used to supply power to the solar control unit or gas booster. The power consumption of the solar
control unit is 4 Watts and the maximum power consumption of the solar circulator is 36 Watts.
COMMISSIONING
Pressure Testing
It may be necessary to pressure test the collector circuit to comply with codes and regulatory authority
requirements, or on other occasions where the solar collectors and solar cold and solar hot pipe work are
installed prior to the solar storage cylinder, such as on a building site.
If the solar collectors, solar pipe work and solar storage cylinder are installed and commissioned together,
then the flooding of the collector circuit with water under mains pressure and checking the pipe work for
leaks during the commissioning procedure can be substituted for the pressure testing of the collector circuit.
If pressure testing is required, the solar water heater, including the collector circuit and solar collectors, is to
be isolated during the testing and commissioning of the heated water reticulation system in accordance with
Clause 11.1 and 11.3 (a) of AS/NZS 3500.4.
Warning:
The pressure applied to the solar circuit and solar collectors during a pressure test
MUST NOT
exceed 1000 kPa where Aquamax S solar collectors are installed, otherwise damage may result
to the solar collectors.
To Fill, Turn ON and Commission the Solar Water Heater
Warning:
The power supply to the solar water heater must not be switched on until the solar water
heater is filled with water and a satisfactory megger reading is obtained.
1.
Open all hot water taps in premises including shower(s).
2.
Fully open cold water isolation valve on cold water line to solar storage cylinder. This will purge air from
hot water plumbing lines via taps opened in step 1.
3.
Close each hot water tap after all air is purged (when air is purged water will run freely without air
bubbles or spluttering).
4.
Check all plumbing connections for leaks.
5.
Purge the collector circuit of air (refer to
“Purging the Solar Collectors” on page 9).
Note:
Air trapped in
the system can prevent solar gain from occurring and cause the solar water heater to operate on the
gas booster only.
6.
Plug in the solar control unit at the power outlet and switch on the electrical supply.
Note:
The power
outlet must be switched on for the solar control unit to operate and for solar gain to be achieved. The
solar control unit also provides additional freeze protection when energised.
When the electrical supply is switched on to the solar control unit at start up:
If there is no solar gain, the circulator will not activate and the
green LED will emit a slow pulse.
The slow pulse indicates the circulator is not activated and the
power to the solar control unit has been on for less than
48 hours.
