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

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

8.1.4

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

8.1.5

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

8.1.6

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 ............................................................................................

8.3

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

8.3.1

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

8.3.2

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

8.3.3

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

8.3.4

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

8.3.5

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

8.3.6

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

8.3.7

To connect the alarm output ................................................................................................................................. 101

8.3.8

To connect the space cooling/heating ON/OFF output ........................................................................................ 102

8.3.9

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

8.3.10

To connect the power consumption digital inputs ............................................................................................... 104

8.3.11

To connect the safety thermostat (normally closed contact)............................................................................... 105

8.4

After connecting the electrical wiring to the indoor unit...................................................................................................... 107

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:

▪

"8.2 Connections to the outdoor

▪

"8.3 Connections to the indoor