INSTALLATION
Installation
12
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10.3 Flow and return connection
!
Material losses
For cooling with fan convectors, the heating flow and
heating return lines must be provided with vapour dif-
fusion-proof insulation.
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f
Take the position of the heating flow and return from the fol-
lowing diagram:
D
00000
58
37
5
1
2
1 Heating flow
2 Heating return
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Connect the heat pump to the heating circuit. Check for
tightness.
10.4 Fitting the push-fit connectors
Note
The plastic push-fit connectors are not suitable for instal-
lation in the DHW line or the solar circuit.
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Install the push-fit connectors only in the heating
circuit.
!
Material losses
Tighten the screw cap of the push-fit connector by hand.
Never use a tool.
!
Material losses
Support sleeves are required when using plastic pipes.
How the push-fit connectors work
The push-fit connectors are equipped with a retainer with stain-
less steel serrations and an O-ring for sealing. The push-fit con-
nectors also have a “twist and secure” function. Simply turning
the screw cap by hand will secure the pipe in the connector and
push the O-ring against the pipe to seal it.
Making the push-fit connection
The connector must be in its relaxed position before the pipe is
inserted. In this position, there is a small gap between the screw
cap and main body.
26
�0
3�
01
�0
69
3
3
1
2
4
1 Retainer
2 Screw cap
3 Gap between screw cap and main body
4 Main body
26
�0
3�
01
�0
69
3
Pipe Ø
28 mm
Depth of insertion A
44 mm
!
Material losses
Pipe ends must be deburred.
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Always use a pipe cutter to trim pipes.
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Push the pipe through the O-ring into the push-fit connector
until it reaches the prescribed insertion depth.
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Tighten the screw cap by hand against main body as far as it
will go. This locks the push-fit connection.
Undoing the push-fit connection
If the push-fit connectors later need to be undone, proceed as
follows:
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Turn the screw cap anti-clockwise until a there is a narrow
gap of approx. 2 mm. Press the retainer back with your fin-
gers and hold on to it.
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Pull out the inserted pipe.
26
�0
3�
01
�0
69
3
10.5 Heating water connection
The heat pump heating system must be connected by a qualified
contractor in accordance with the water installation diagrams,
which are part of the technical guides.
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Before connecting the heat pump, flush the pipework thor-
oughly with suitable water. Foreign bodies (e.g. welding
pearls, rust, sand, sealant, etc.) can impair the operational
reliability of the heat pump.
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Connect the heat pump on the heating water side. Check for
tightness.
