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

9.1.1

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

9.1.2

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

9.1.3

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

9.1.4

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

9.1.5

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

9.2

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

9.2.1

Specifications of standard wiring components .....................................................................................................

9.2.2

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

9.3

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

9.3.1

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

9.3.2

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

9.3.3

To connect the user interface................................................................................................................................

9.3.4

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

9.3.5

To connect the electricity meters.......................................................................................................................... 100

9.3.6

To connect the domestic hot water pump............................................................................................................ 101

9.3.7

To connect the alarm output ................................................................................................................................. 102

9.3.8

To connect the space cooling/heating ON/OFF output ........................................................................................ 103

9.3.9

To connect the changeover to external heat source ............................................................................................ 104

9.3.10

To connect the power consumption digital inputs ............................................................................................... 105

9.3.11

To connect the safety thermostat (normally closed contact)............................................................................... 106

9.4

After connecting the electrical wiring to the indoor unit...................................................................................................... 108

Before connecting the electrical wiring

Make sure:

▪

The refrigerant piping is connected and checked

▪

The water piping is connected

Typical workflow

Connecting the electrical wiring typically consists of the following stages:

▪

"9.2 Connections to the outdoor

▪

"9.3 Connections to the indoor