Electrical; Power Supply - Grant Aerona 290 Installation & Operating Instructions Manual

6 ELECTRICAL

6.1

POWER SUPPLY

Use a dedicated power supply with a correctly sized circuit
breaker. This must be a high-speed type of 30mA (<0.1s).
The final power supply connection must be made from a
weatherproof lockable isolator located outside the building.
The cable should be either armoured or run in a flexible conduit
between the isolator and the heat pump. The power supply cable
should be sized by a qualified electrician in accordance with
current wiring regulations.
The DC residual current measured is less than 10A on all models,
therefore a Type F Residual Current Device (RCD) can be used
on all Aerona 290 heat pumps.
! NOTE !
A Type F Residual current device (RCD) can be used
with all Aerona 290 heat pumps with DC residual current
measuring under 10mA across all models.
Table 6-1: Electrical supply details
Model Voltage (V)
HPR2904 230
HPR29065 230
HPR2909 230
HPR29012 230
HPR290155 230
* Power cable should be sized by a qualified electrician in accordance with current wiring regulations.
Select circuit breaker that has a contact separation in all poles not
less that 2mm providing full disconnection through a double pole
isolator where:
Table 6-2: Fan input power
Model
Single fan
HPR2904 100
HPR29065 170
HPR2909 170
HPR29012 100
HPR290155 100
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Figure 6-1: Heat pump, isolator and consumer unit
Frequency (Hz)
50
50
50
50
50
Fan Input power (W)
Dual fan
n/a
n/a
n/a
200
200
Consumer
MCB
Power cable*
Min (mm²) Type
4.0 20A Class A
4.0 20A Class A
6.0 32A Class A
6.0 32A Class A
6.0 32A Class A
unit
Lockable
isolator
Max Running
current (A)
Rating (A)
16 8.3
16 12.8
20 16.8
32 24.8
32 29.3
Section 6: Electrical