3 Installation
Installation manual
6
EHBH/X04~16CA
Daikin Altherma - Low Temperature Split
4P313771-1C – 2012.11
3.3
Connecting the refrigerant piping
See the outdoor unit installation manual for all guidelines,
specifications and installation instructions.
3.3.1
To connect the refrigerant piping to the
indoor unit
1
Connect the liquid stop valve from the outdoor unit to the
refrigerant liquid connection of the indoor unit.
b
a
a
Refrigerant liquid connection
b
Refrigerant gas connection
2
Connect the gas stop valve from the outdoor unit to the
refrigerant gas connection of the indoor unit.
3.4
Connecting the water piping
3.4.1
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 are provided.
Mount the valves on the water inlet and on the water outlet. Mind
their the position. Orientation of the integrated drain valves is
important for servicing.
1
Install the shut-off valves on the water pipes.
a
b
a
Water inlet
b
Water outlet
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.
5
Only applicable for EHBH/X16: install the sound plate as shown
in the figure below.
1
2
4x
3
3.4.2
To fill the water circuit
1
Connect the water supply hose to the drain and fill valve.
2
Open the drain and fill valve.
3
Make sure that the automatic air purge valve is open (at least 2
turns).
INFORMATION
For location of the air purge valve, see Components:
Indoor unit in the Installer reference guide.
4
Fill the circuit with water until the manometer indicates a
pressure of ±2.0 bar.
5
Purge as much air as possible from the water circuit.
NOTICE
▪ Air in the water circuit can cause malfunctioning of the
backup heater. During filling, it may not be possible to
remove all the air from the circuit. Remaining air will be
removed through the automatic air purge valves during
the initial operating hours of the system. Additional
filling with water afterwards may be required.
▪ To purge the system, use the special function as
described in the chapter "5 Commissioning" on
page 17. This function should be used to purge the
heat exchanger coil of the domestic hot water tank.
6
Close the drain and fill valve.
7
Disconnect the water supply hose from the drain and fill valve.
3.4.3
To fill the domestic hot water tank
For installation instructions, see the installation manual of the
domestic hot water tank.
