Precautions When Connecting The Water Piping; To Connect The Water Piping - Daikin EHFZ03S18DJ3V Installer's Reference Manual

8 | Piping installation

8.6.2 Precautions when connecting the water piping

8.6.3 To connect the water piping

Installer reference guide
82
Typical workflow
Connecting the water piping typically consists of the following stages:
1 Connecting the water piping to the indoor unit.
2 Connecting the recirculation piping.
3 Connecting the drain hose to the drain.
4 Filling the water circuit.
5 Filling the domestic hot water tank.
6 Insulating the water piping.
INFORMATION
Also read the precautions and requirements in the following chapters:
▪
"2 General safety
▪
"8.5 Preparing water
NOTICE
Do NOT use excessive force when connecting the piping. Deformation of the piping
can cause malfunctioning of the unit.
NOTICE
This unit is designed for operation on 2 temperature zones:
▪
underfloor heating in the main zone, this is the zone with the lowest water
temperature,
▪
radiators in the additional zone, this is the zone with the highest water
temperature.
1 Connect the space heating water in and out pipes to the indoor unit.
2 Connect the domestic hot water in and out pipes to the indoor unit.
c d a b
f e
a Space heating/cooling additional/direct zone – Water OUT (screw connection, 1")
b Space heating/cooling additional/direct zone – Water IN (screw connection, 1")
c DHW – Hot water OUT (screw connection, 3/4")
d DHW – Cold water IN (screw connection, 3/4")
e Space heating/cooling main/mixed zone – Water OUT (screw connection, 1")
f Space heating/cooling main/mixed zone – Water IN (screw connection, 1")
4
precautions" [ 10]
4
piping" [ 75]
ERLA03DAV3 + EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1B – 2021.10