Line Function Setting range or display Setting
increment
Basic setting
901 Operating mode Off, Automatic
902 Comfort cooling setpoint 17... 40 °C 0,5 °C
907 Release 24h/day, Time program HC,
Time program 5 / Cooling
If the installation is tted with a DHW tank, set the parameter 907 to "Time program 5 / Cooling"
(In order to activate cooling only during the day and leave the DHW system to operate during the night).
908 Flow temp setp at OT 25°C 6... 35 °C 0,5 °C
Starting cooling temperature setting for an outdoor temperature of 25 °C.
909 Flow temp setp at OT 35°C 6... 35 °C 0,5 °C
Starting cooling temperature setting for an outdoor temperature of 35 °C.
912 Cooling limit at OT --, 8... 35 °C 0,5 °C
If the outdoor temperature is lower than this reading, cooling mode is deactivated.
913 Lock time at end of heating --, 8... 100 1 h
The time delay for operating in cooling mode after having operated in heating mode and vice versa.
918 Summer comp start at OT 20... 50 °C 1 °C
The comfort setting (902) is increased in line with the outdoor temperature rising above this reading.
919 Summer comp end at OT 20... 50 °C 1 °C
Above this reading, the comfort setting (902) is no longer affected by an increase in the outdoor temperature.
920 Summer comp setp increase --, 1... 10 °C 1 °C
Maximum increase in the comfort setting (902).
30
20
18
16
°C
°C
25 35
908
909
Flow temperature setpoint
Outside temperature
gure 16 - Slope
of the cooling curve
92 0
91 9918
902
°C
°C
Comfort ambient temperature setpoint
Outside temperature
In summer, the comfort setting for cooling (Line 902) is offset
upwards in line with the increase in outdoor temperature.
The saves on cooling power and prevents too great a
differential between the ambient indoor and outdoor
temperatures.
Remark : Summer compensation explains the difference
between the value set on Line 902 (or on the setting knob)
and the reading on line 8740.
gure 17 - Compensation
for the comfort setting
Installation and operating manual "1395 - EN"
Control Box
- 20 -
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