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

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

9.2.2

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

9.2.3

To connect the backup heater power supply........................................................................................................ 100

9.2.4

External backup heater kit ..................................................................................................................................... 101

9.2.5

To connect the user interface................................................................................................................................ 108

9.2.6

To connect the shut-off valve ................................................................................................................................ 111

9.2.7

To connect the electricity meters.......................................................................................................................... 112

9.2.8

To connect the domestic hot water pump............................................................................................................ 113

9.2.9

To connect the alarm output ................................................................................................................................. 113

9.2.10

To connect the space cooling/heating ON/OFF output ........................................................................................ 114

9.2.11

To connect the changeover to external heat source ............................................................................................ 115

9.2.12

To connect the power consumption digital inputs ............................................................................................... 116

9.2.13

To connect the safety thermostat (normally closed contact)............................................................................... 117

9.2.14

To connect a Smart Grid ........................................................................................................................................ 118

Before connecting the electrical wiring

Make sure the water piping is connected.

Typical workflow

Connecting the electrical wiring typically consists of the following stages:

▪

"9.2 Connections to the outdoor

DANGER: RISK OF ELECTROCUTION

WARNING

ALWAYS use multicore cable for power supply cables.

INFORMATION

Also read the precautions and requirements in the

precautions" [