To Fill The Domestic Water Circuit Of The Gas Boiler; To Fill The Domestic Hot Water Tank; To Insulate The Water Piping; Connecting The Electrical Wiring - Daikin Altherma H Hybrid EJHA04AAV3 Installer's Reference Manual

10 | Installation

10.6.7 To fill the domestic water circuit of the gas boiler

10.6.8 To fill the domestic hot water tank

10.6.9 To insulate the water piping

10.7 Connecting the electrical wiring

10.7.1 About connecting the electrical wiring

Typical workflow in case of dedicated gas boiler
Installer reference guide
100
NOTICE
The water pressure indicated on the boiler display vary depending on the water
temperature (higher pressure at higher water temperature).
However, at all times water pressure shall remain above 1 bar to avoid air entering
the circuit.
1 Open the main tap to pressurise the hot water section.
2 Vent the exchanger and the pipe system by opening a hot water tap.
3 Leave the tap open until all air has disappeared from the system.
4 Check all connections for leaks including internal connections.
See the installation manual of the domestic hot water tank.
The piping in the complete water circuit MUST be insulated to prevent
condensation and reduction of the heating capacity.
To prevent the freezing of the outdoor water piping during winter time, the
thickness of the sealing material MUST be at least 13 mm (with λ=0.039 W/mK).
During winter, protect the water piping and shut‑off valves against freezing by
adding heat tape (field supply). If the outdoor temperature can drop below –20°C
and no heat tape is used, it is recommended to install the shut‑off valves indoors.
Before connecting the electrical wiring
Make sure the water piping is connected.
Connections to outdoor unit:
1 Making sure the power supply system complies with the electrical
specifications of the units.
2 Connecting the electrical wiring to the outdoor unit.
3 Connecting the main power supply.
4 Connecting the user interface.
5 Connecting the dedicated gas boiler to the outdoor unit.
6 Connecting the domestic hot water pump (if applicable).
7 Connecting the bottom plate heater (if applicable)(see the installation manual
of the bottom plate heater).
8 Connecting the remote outdoor sensor (if applicable)(see the installation
manual of the remote outdoor sensor and addendum book for optional
equipment).
9 Connecting the LAN adapter (if applicable)(see the installation manual of the
LAN adapter and addendum book for optional equipment).
EJHA04AAV3 + EHY2KOMB28+32AA
Daikin Altherma H Hybrid
4P531180-1D – 2025.03