Connecting The Water Piping; About Connecting The Water Piping; Precautions When Connecting The Water Piping; To Connect The Water Piping - Daikin Altherma EDLQ011-016CW1 Installer's Reference Manual

7 Installation
3 Mark the position of the hole at the bottom of the backup
heater.
4 Remove the backup heater from the wall bracket.
5 Drill a hole for the bottom screw and insert a plug.
6 Hang the backup heater onto the wall bracket. Make sure it is
fixed properly.
7 Fix the bottom of the backup heater to the wall with an M5
screw.
7.7

Connecting the water piping

7.7.1

About connecting the water piping

Before connecting the water piping
Make sure the outdoor unit is mounted. If applicable, also make sure
the control box and the backup heater are mounted.
Typical workflow
Connecting the water piping typically consists of the following
stages:
1 Connecting the water piping of the outdoor unit.
2 Connecting the water piping of the backup heater and/or the
domestic hot water tank (if applicable).
3 Filling the water circuit.
4 Protecting the water circuit against freezing (addition of glycol).
5 Filling the domestic hot water tank (if applicable).
6 Insulating the water piping.
7.7.2 Precautions when connecting the water
piping
INFORMATION
Also read the precautions and requirements in the
following chapters:
▪ General safety precautions
▪ Preparation
Installer reference guide
36
7.7.3

To connect the water piping

NOTICE
Do NOT use excessive force when connecting the piping.
Deformation of the piping can cause malfunctioning of the
unit. Make sure that the tightening torque does NOT
exceed 30 N•m.
To facilitate service and maintenance, 2 shut-off valves are provided.
Mount the valves on the space heating water inlet and space heating
water outlet. Mind their position: the integrated drain valves will only
drain the side of the circuit on which they are located. To be able to
only drain the unit, make sure the drain valves are positioned
between the shut‑off valves and the unit.
a b
a Water inlet
b Water outlet
1 Screw the outdoor unit nuts on the shut-off valves.
2 Connect the field piping on the shut-off valves.
3 In case of connection with the optional domestic hot water tank,
see the installation manual of the domestic hot water tank.
NOTICE
Install a manometer in the system.
NOTICE
Install air purge valves at all local high points.
NOTICE
In case an optional domestic hot water tank is installed: A
pressure relief valve (field supply) with an opening
pressure of maximum 10 bar must be installed on the
domestic cold water inlet connection in accordance with
the applicable legislation.
EBLQ+EDLQ011~016CAV3+W1 + EK(2)CB07CAV3 +
Daikin Altherma low temperature monobloc
EKMBUHCA3V3+9W1
4P522034-1 – 2018.01