About connecting the electrical wiring ..................................................................................................................................

8.1.1

Precautions when connecting the electrical wiring ..............................................................................................

8.1.2

Guidelines when connecting the electrical wiring ................................................................................................

8.1.3

About electrical compliance ..................................................................................................................................

8.1.4

About preferential kWh rate power supply...........................................................................................................

8.1.5

Overview of electrical connections except external actuators.............................................................................

8.2

Connections to the outdoor unit............................................................................................................................................

8.2.1

To connect the electrical wiring to the outdoor unit ............................................................................................

8.2.2

To reposition the air thermistor on the outdoor unit ...........................................................................................

8.3

Connections to the indoor unit ..............................................................................................................................................

8.3.1

To connect the main power supply ....................................................................................................................... 101

8.3.2

To connect the backup heater power supply........................................................................................................ 103

8.3.3

To connect the shut-off valve ................................................................................................................................ 105

8.3.4

To connect the electricity meters.......................................................................................................................... 106

8.3.5

To connect the domestic hot water pump............................................................................................................ 107

8.3.6

To connect the alarm output ................................................................................................................................. 108

8.3.7

To connect the space cooling/heating ON/OFF output ........................................................................................ 109

8.3.8

To connect the changeover to external heat source ............................................................................................ 110

8.3.9

To connect the power consumption digital inputs ............................................................................................... 111

8.3.10

To connect the safety thermostat (normally closed contact)............................................................................... 112

8.4

After connecting the electrical wiring to the indoor unit...................................................................................................... 113

Before connecting the electrical wiring

Make sure the water piping is connected.

Typical workflow

Connecting the electrical wiring typically consists of the following stages:

▪

"8.2 Connections to the outdoor

▪

"8.3 Connections to the indoor

DANGER: RISK OF ELECTROCUTION

WARNING

ALWAYS use multicore cable for power supply cables.

INFORMATION