Fujitsu WATERSTAGE 112 Maintenance Document page 83

Heat Pump, Split System, Single Service, 3 phase
Cooling Characteristic
Line no. Programming line
908 Flow temp setp at OT 25°C
909 Flow temp setp at OT 35°C
The controller computes the flow temperature
required for a given averaged outdoor temperature
based on the cooling characteristic. This is defined by
two reference points (flow setpoint at 25°C and at
35°C).
Flow temp setp at OT 25°C
This is the cooling flow temperature required when
the averaged outdoor temperature is 25°C, without
summer compensation.
The cooling characteristic is adjusted for a 25°C room
temperature setpoint. If the room temperature
setpoint is changed the curve will automatically
adapt.
Eco
Line no. Programming line
912 Cooling limit at OT
913 Lock time after end of heating
Cooling limit at OT
If the composite outdoor temperature is higher than
the cooling limit, cooling is released. If the composite
outdoor temperature falls at least 0.5°C below the
cooling limit, cooling is locked.
Maintenance Document 1394-1
Flow temp
setpoint
908
909
25°C
Flow temp setp at OT 35°C
This is the cooling flow temperature required when
the averaged outdoor temperature is 35°C, without
summer compensation.
Averaged
35°C
OT
Lock time after end of heating
To avoid a quick start of cooling after termination of
heating, the cooling function is locked for a time
period which can be adjusted with this setting. The
lock time starts when there is no valid heating
demand from heating circuit 1. Heating demands
from heating circuits 2 or P are ignored.
Information:
Switching off and switching on again the mode
selection key causes the lock time to be interrupted
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