INSTaLLaTION
Commissioning
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WPL 15 IKS | WPL 25 IK |
47
After the heat-up process all modified parameters must be reset
to their standard values or system values.
Emergency operation is not possible while the heat-up program
is active.
7
SUMMER OPRTN
This parameter can be used to define the point at which the hea-
ting system should switch to summer mode.
Summer mode can be switched ON or OFF. This function offers
two adjustable parameters.
Using parameter BUILDNG TYPE you can select whether the cur-
rent outside temperature is to be compared with the set outside
temperature (setting 0) or whether you would like to calculate an
average outside temperature depending on the building design
(setting 1, 2 and 3). In both cases, if the current or the adjusted
outside temperature is ≥ than the selected outside temperature,
both heating circuits (if installed) enter summer mode; reverse
hysteresis – 1 K.
Summer mode is displayed when the flap is closed.
With fixed-value control, summer mode is disabled for heating
circuit 1.
Outside temperature parameter
Adjustable outside temperature 10 °C to 30 °C.
Building type parameter
Setting 0: The outside temperature will not be adjusted. The aver-
age and the building-specific outside temperature are identical to
the current outside temperature; direct comparison between the
selected and current outside temperature.
Setting 1: Mild adjustment of the outside temperature (averaging
over a 24 h period), for example timber construction with rapid
heat transfer.
Setting 2: Moderate adjustment of the outside temperature (aver-
aging over a 48 h period), for example solid construction with
thermal insulation and average heat transfer.
Setting 3: Severe adjustment (averaging over a 72 h period) of the
outside temperature, e.g. house with slow heat transfer.
8
PUMP CYCLES
Heating circuit pump control
The PUMP CYCLES parameter only applies to the direct heating
circuit 1, i.e. for heating circuit pump 1.
This parameter can be set to ON or OFF. In setting OFF the heating
circuit pump will not cycle. The heating circuit pump operates
continuously and is only turned off in summer mode.
As soon as this parameter is set to ON, the heating circuit pump
will be switched in line with a fixed temperature curve for the
outside temperature.
The heating circuit pump start pulse is always 5 minutes.
The heating circuit pump for heating circuit 1 always starts with
each heat pump start up. The pump runs on for 5 minutes after
the heat pump has been switched off.
Now the start-up duration is brought to bear, e.g. at an outside
temperature of 5 °C, the pump starts 3 times per hour for 5 mi-
nutes respectively.
Pump kick
To prevent the pumps seizing up, over summer for example, the
pumps are switched on for 10 seconds after every 24 hour period
of inactivity. This applies to all pumps.
Heating circuit pump control with connected FE 7 / FEK remote
control unit
In conjunction with the FE 7 or FEK remote control, the switching
condition
ϕ
ACTUAL room
< ϕ
SET room
+ 1K
the respective heating circuit pump is switched off and the mixer
moves to MIXER CLOSE. This only applies if the room sensor influ-
ence is set to K > 0. Reverse switching is subject to the following
condition:
ϕ
ACTUAL room
< ϕ
SET room
Summer mode is also enabled for the respective heating circuit
when a FE 7 remote control is used.
0
10
20
30
40
50
60
< -10
-10
-5
0
5
10
Y
1
2
84
�0
3�
01
�0
03
9
Y Outside temperature in °C
X Time in minutes
1 Pause
2 Pump run time
9
B-PUMP CONST
When using a buffer cylinder, set this parameter to OFF. If no buffer
cylinder is used, set this parameter to ON.
10
FIXED FLOW T
Fixed value temperature
The heat pump return is regulated to the set fixed value. The swit-
ching time program will then be ignored. The various positions
of the program selector will then only affect the mixer circuit (if
installed).
If the program selector is set to STANDBY and DHW and a fixed
temperature has been selected, the frost protection is activated
and the compressor is switched off.
