INSTALLATION
Installation
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WPL 10 AC | WPL 10 ACS |
13
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Install the open heating circuit(s) in the lead room (room
where the external programming unit of the heat pump
control unit is installed, such as in the living room). The indi-
vidual room can then be controlled either with the external
programming unit or directly by adjusting the heating curve
or the room influence.
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Fully open the heating circuit(s) in the lead room.
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Close all other heating circuits.
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If an overflow valve has been installed in the heating system,
fully close this overflow valve in order to determine the mini-
mum flow rate.
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Make the settings at the circulation pump when the temper-
ature differential between the flow and return temperature
has stabilised.
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Set the heating circuit pump so that the minimum flow rate
required to operate the system is safeguarded.
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Compare the resulting temperature difference between the
flow and return at the appliance with the diagram "Maximum
temperature differential on the heating side with individual
room controller and external programming unit".
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Set the heating circuit pump so that the maximum tempera-
ture differential is achieved or undershot.
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Set the heating circuit pump to ∆p constant.
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If the appliance will be used for DHW heating, check the set-
ting of the delivery head in DHW mode.
10.7.2 Flow rate with buffer cylinder
When using a buffer cylinder, make the following setting: In the
menu "SETTINGS / HEATING / STANDARD SETTINGS", set param-
eter "BUFFER OPERATION" to "ON".
The flow rate can be adjusted using the temperature differential
of the buffer circuit. The value must not fall below the minimum
flow rate.
Maximum temperature differential on the heating side with buffer
cylinder:
1
0
2
4
6
8
10
-15 -10
-5
0
5
10
15
20
25
30
D
00000
63
55
0
1 Nominal flow rate
X Outside temperature [°C]
Y Maximum temperature differential [K]
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Make the settings at the circulation pump when the temper-
ature differential between the flow and return temperature
has stabilised.
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Compare the resulting temperature difference between the
flow and return at the appliance with the diagram “Maxi-
mum temperature differential on the heating side with buffer
cylinder”.
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Set the buffer charging pump so that the maximum tempera-
ture differential is achieved or undershot.
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If the appliance will be used for DHW heating, check the set-
ting of the delivery head in DHW mode.
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If necessary, adjust the delivery head setting for the DHW
primary pump.
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Set the buffer charging pump and the DHW primary pump to
∆p constant.
10.8 Condensate drain
A condensate drain connector is fitted to the defrost pan at the
factory to enable the condensate to drain off.
26
�0
3�
01
�1
552
1
1 Condensate drain
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Secure a hose to the condensate drain connector.
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Insulate the hose to ensure frost protection.
!
Material losses
Ensure the hose is not kinked. Route the hose with a
slope.
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After routing the hose, check that the condensate can drain
correctly.
10.9 External heat source 2
For dual mode systems, always connect the heat pump into the
return of the second heat generator (e.g. oil boiler).
10.10 Safety temperature controller for underfloor
heating system
!
Material losses
In case of failure, in order to prevent an excessively high
flow temperature in the underfloor heating system, we
generally recommend the use of a safety temperature
controller to limit the system temperature.
