Daikin Altherma 3 R W - Precautions When Connecting the Water Piping; To Connect the Water Piping

8 | Piping installation
Installer reference guide
113
ERLA11~16D + EBBH/X11+16D
Daikin Altherma 3 R W
4P643603-1B – 2022.05
8.6.2 Precautions when connecting the water piping
INFORMATION
Also read the precautions and requirements in the following chapters:
▪ "2General safety precautions"[410]
▪ "8.5Preparing water piping"[4106]
8.6.3 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.
To facilitate service and maintenance, 2 shut-off valves and 1 overpressure bypass
valve are provided. Mount the shut-off valves on the space heating water inlet and
space heating water outlet. To ensure the minimum flow rate (and prevent
overpressure), install the overpressure bypass valve on the space heating water
outlet.
1 Install the shut-off valves on the water pipes.
a b
a Space heating/cooling – Water OUT (screw connection, 1")
b Space heating/cooling – Water IN (screw connection, 1")
2 Screw the indoor unit nuts on the shut-off valves.
3 Connect the field piping on the shut-off valves.
4 In case of connection with the optional domestic hot water tank, see the
installation manual of the domestic hot water tank.
NOTICE
Install air purge valves at all local high points.