Electrical Installation; About Connecting The Electrical Wiring; Precautions When Connecting The Electrical Wiring - Daikin ERGA06EAV3H Installer's Reference Manual

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Table of Contents

9 Electrical installation

In this chapter

9.1 About connecting the electrical wiring

9.1.1 Precautions when connecting the electrical wiring

ERGA04~08EAV3+V3A+V37 + EHSH/X(B)04+08P30+50EF

Daikin Altherma 3 R ECH₂O

4P678716-1 - 2022.01

9.1

About connecting the electrical wiring .................................................................................................................................. 111

9.1.1

Precautions when connecting the electrical wiring .............................................................................................. 111

9.1.2

Guidelines when connecting the electrical wiring ................................................................................................ 112

9.1.3

About electrical compliance .................................................................................................................................. 113

9.1.4

About preferential kWh rate power supply........................................................................................................... 113

9.1.5

Overview of electrical connections except external actuators............................................................................. 114

9.2

Connections to the outdoor unit............................................................................................................................................ 115

9.2.1

Specifications of standard wiring components ..................................................................................................... 115

9.2.2

To connect the electrical wiring to the outdoor unit ............................................................................................ 115

9.3

Connections to the indoor unit .............................................................................................................................................. 117

9.3.1

To connect the electrical wiring to the indoor unit............................................................................................... 120

9.3.2

To connect the main power supply ....................................................................................................................... 122

9.3.3

To connect the backup heater power supply........................................................................................................ 124

9.3.4

To connect the backup heater to the main unit.................................................................................................... 127

9.3.5

To connect the shut-off valve ................................................................................................................................ 128

9.3.6

To connect the electricity meters.......................................................................................................................... 129

9.3.7

To connect the domestic hot water pump............................................................................................................ 130

9.3.8

To connect the alarm output ................................................................................................................................. 131

9.3.9

To connect the space cooling/heating ON/OFF output ........................................................................................ 132

9.3.10

To connect the changeover to external heat source ............................................................................................ 133

9.3.11

To connect the power consumption digital inputs ............................................................................................... 134

9.3.12

To connect the safety thermostat (normally closed contact)............................................................................... 136

9.3.13

To connect a Smart Grid ........................................................................................................................................ 137

9.3.14

To connect the WLAN cartridge............................................................................................................................. 142

9.3.15

To connect the solar input ..................................................................................................................................... 143

9.3.16

To connect the DHW output.................................................................................................................................. 143

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