Revision 10 Nov 2020
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Connect 230 Volt AC to a dedicated circuit from the Distribution board. Note the circuit
breaker must provide Residual Current Device (RCD) protection per AS / NZS 3000 clause
2.6.3.2.3.3.
Note Per AS / NZS 3000 clause 4.19, the indoor and outdoor unit AC power must be isolated
by an isolation switch adjacent to the outdoor unit.
Connect the solar DC to the dc connections provided via a solar isolator mounted adjacent
to the out-door unit.
Installation of Solar Modules
Solar Modules must be installed in accordance with all applicable codes. Some of them are
the local building codes, the Building Code of Australia, AS / NZS 4777 and AS / 5033. The
must be installed by a licenced, competent person.
Solar Array Maximum Voltage.
The maximum Voltage Open Circuit (VOC) must be calculated to account for low
temperature voltage rise. Failure to do may damage the equipment and void warranty.
For guidance see AS / NZS 5033 4.2 PV array maximum voltage.
The maximum Voltage Open Circuit for this equipment is 380 Vdc.
For example, if the lowest recorded temperature is 4 to 0 degrees C and the VOC of a
module is 44.2 Vdc, one would multiply 44.2 by 1.1 equalling 4.42 volts.
Adding 44.2 and 4.42 equals the low temperature VOC of 48.62.
Dividing the maximum VOC input of 380 Vdc by 48.62 yields the maximum number of solar
modules 7.81. Rounding down yields 7 modules max at that low temperature.
