INSTALLATION
Preparations
10
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!
Material losses
The T-support may bend if the heat pump is subject to
any lateral load.
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Do not exert any pressure on the sides of the heat
pump.
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Observe the static limits of the T-support used.
Example: Wall mounting support WK 1
Note
To prevent disturbance due to structure-borne noise
transmission, never install the wall mounting support
on the external walls of living areas or bedrooms.
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Install the wall mounting support on a garage wall,
for example.
Note
Condensate drips from the appliance onto the floor.
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Observe the minimum clearance below the appli-
ance (see chapter "Preparations / Minimum clear-
ances").
≥200
2
3
1
D
00000
57
58
2
1 Heating flow
2 Heating return
3 Wall mounting support
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Observe the static limits of the wall mounting support used.
9.4 Installing the supply lines
The supply lines are all electric cables plus the heating flow and
return lines.
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Use only weatherproof cables, e.g. NYY.
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Protect the flow and return lines against frost with sufficient
thermal insulation. Provide thermal insulation in accordance
with applicable regulations.
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Also protect all supply lines/cables against humidity, damage
and UV radiation by means of a conduit.
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Protect all pipe fixings and external wall ducts with anti-vi-
bration insulation.
9.5 WPM heat pump manager
A WPM heat pump manager is required to operate the appliance.
This controls the entire heating system. The heat pump manager
is installed in the products defined as required accessories (see
chapter "Installation / Appliance description / Accessories").
9.6 Buffer cylinder
!
Material losses
A buffer cylinder with diffusion-proof insulation is es-
sential for fan cooling.
A buffer cylinder is recommended to ensure trouble-free appliance
operation.
The buffer cylinder provides hydraulic separation of the volume
flows in the heat pump circuit and heating circuit, and also serves
as an energy source for defrosting.
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When operating without a buffer cylinder, observe the details
specified in chapter "Minimum flow rate with individual room
control by means of FEK / FE7 in systems without buffer
cylinder".
Note
For operation without a buffer cylinder, we recommend
installing an electric emergency/booster heater (DHC).
An emergency/booster heater is installed in some of the
products required as accessories (see chapter “Installa-
tion / Appliance description / Accessories”).
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If you do not install an emergency/booster heater,
for fault-free operation activate the WW LEARNING
FUNCTION parameter in the WPM heat pump man-
ager.
