5 Piping installation
Installation manual
17
ELSH/X(B)12P30+50E
Daikin Altherma 3 R MT ECH
₂
O
4P708484-1 – 2023.03
▪ You MUST check the minimum water volume and the minimum
flow rate.
Minimum water volume
Check that the total water volume in the installation is higher than
the minimum water volume, the internal water volume of the indoor
unit NOT included:
If…
Then the minimum water
volume is…
Cooling operation
21 l
Heating operation
21 l
Minimum flow rate
Check that the minimum flow rate in the installation is guaranteed in
all conditions.
If operation is…
Then the minimum required
flow rate is…
Cooling
10 l/min
Heating/defrost
20 l/min
NOTICE
When circulation in each or certain space heating loops is
controlled by remotely controlled valves, it is important that
the minimum flow rate is guaranteed, even if all valves are
closed. In case the minimum flow rate cannot be reached,
a flow error 7H will be generated (no heating or operation).
See the installer reference guide for more information.
See the recommended procedure as described in
43].
5.4
Connecting water piping
5.4.1
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.
NOTICE
Do NOT use excessive force when connecting the field
piping and make sure the piping is aligned properly.
Deformation of the piping can cause malfunctioning of the
unit.
1
Remove the thermal insulation of the hydraulic block. Open the
vent valve on the pump by one turn. Afterwards put the thermal
insulation back on the hydraulic block.
NOTICE
The thermal insulation can easily be damaged if NOT
handled correctly.
▪ ONLY remove parts in the order and direction as
indicated here,
▪ do NOT use force,
▪ do NOT use tools,
▪ re-install the thermal insulation in reverse order.
2
Connect the shut-off valves using the flat gaskets (accessory
bag) to the space heating/cooling water pipes of the indoor unit.
3
Connect the space heating/cooling field piping to the shut-off
valves using a sealing.
Do NOT exceed the maximum tightening torque (Thread size 1",
25-30 N•m). To avoid damage, apply the necessary countertorque
with a suitable tool.
2
≤Ø7 mm
1
3
4
Connect the domestic hot water in and out pipes to the indoor
unit.
Do NOT exceed the maximum tightening torque (Thread size 1",
25-30 N•m). To avoid damage, apply the necessary countertorque
with a suitable tool.
1
2
5
Cut open the top cover.
If the space heating/cooling or the domestic hot water pipes are
directed upwards, the top cover must be cut along the perforation
with a suitable tool.
