EKHVH/X00 EKHVH/9WN
Daikin Altherma indoor unit
4PW64329-1 – 07.2010
Installation manual
15
If air, moisture or dust gets in the water circuit, problems may occur.
Therefore, always take into account the following when connecting
the water circuit:
■
Use clean pipes only.
■
Hold the pipe end downwards when removing burrs.
■
Cover the pipe end when inserting it through a wall so that no
dust and dirt enter.
■
Use a good thread sealant for the sealing of the connections.
■
When using non-brass metallic piping, make sure to insulate
both materials from each other to prevent galvanic corrosion.
■
Because brass is a soft material, use appropriate tooling for
connecting the water circuit. Inappropriate tooling will cause
damage to the pipes.
■
Select piping diameter in relation to required water flow and
available external static pressure of the pump.
■
The minimum required water flow for the indoor unit operation is
16 l/min. When the water flow is lower than this minimum value,
flow error
7H
will be displayed and the operation of the indoor
unit will be stopped.
Precautions when connecting field piping and regarding
insulation
The complete water circuit, inclusive all piping, must be insulated to
prevent reduction of the heating capacity.
If the indoor ambient temperature is higher than 30°C and the
humidity is higher than RH 80% then the thickness of the insulation
materials should be at least 20 mm in order to avoid condensation on
the surface of the insulation.
WARNING
It is strongly recommended to install an additional filter on
the heating water circuit. Especially to remove metallic
particles from the field heating piping, it is advised to use a
magnetic or cyclone filter which can remove small
particles. Small particles can damage the unit and will not
be removed by the standard filter of the heat pump unit.
NOTICE
■
Consider carefully the installation location of the
flexible water inlet pipe.
■
According to the direction of the water flow, the water
filter must be positioned as shown in the figure.
■
Provide sufficient space allowing easy access to
clean the water filter and regular operation check of
the safety valve.
■
Provide a flexible hose for pressure relief valve blow-
off (field supply).
■
Consider to support the water inlet pipe and water
outlet pipe so not to stress the field piping.
It is very important to keep good visibility of the
manometer. The position of the manometer can be
changed as shown in the figure below. Make sure that the
capillary tube does not come in contact with sharp edges
and prevent bending of the capillary tube as much as
possible.
■
Change the position of the manometer when piping is
on the left side of the unit
■
Mounting of the manometer against a wall (the 2
screws are field supply).
2
5
1
3
3
4
5
6
2
3
1
1x
2x
Summary of Contents for EKHVH008BB6V3
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