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Wiring & Power Supply Information
Power
The system needs 2 power supplies:
The first is the outdoor unit;
5kW - 16Amp
9kW - 20Amp
16kW - 32Amp
The second is the control/MIM box, this will be a 16Amp supply. This wires into the top of the MCB in the box. Some people remove the MCB from the
control box as there is already one in the distribution board. If this is done, wire the live to L1 and neutral to N2.
Immersion Heater
The immersion heater is powered via the control (MIM) box and is connected to the terminals A3 (Live) and A4 (Neutral). If a fused spur is used it must be
labeled so that it is not switched off as this will cause the system to go into a fault.
Communication Cable
The comms cable is used to connect the indoor control box to the outdoor unit. The outdoor unit terminals F1 & F2 connect to the terminals in the control
box labelled F1 & F2. To create the signal without issues you should use a 2 core flex 0.5-1mm cable without and breaks or switches.
Remote controller
The Samsung control is usually installed in close proximity to the control box and is mostly used for commissioning purposes.
To connect this to the control board you will need a 2 core 0.50.75 mm 2 core flex that connects to F3 & F4 in the controller to F3 & F4 on the control
board and must be no further than 100m.
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