Fujitsu WATERSTAGE WS A050DD6 Series Maintenance Document page 62

Split system single phase type
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.
Summer Compensation
Line no. Programming line
918 Summer comp start at OT
919 Summer comp end at OT
920 Summer comp setp increase
In summer the "cooling comfort setpoint" (902) is
gradually increased
temperature. This saves on cooling power and
prevents the differences between the ambient
temperature of the room and the outdoor temperature
being too high.
The resulting "room temperature setpoint" (cooling)
can be viewed in the Info section.
Summer compensation start at OT
Summer compensation starts to be active from the
outdoor temperature defined here. If the outdoor
temperature continues to rise, the comfort setpoint
will be gradually increased.
62
according to the outdoor
Comfort
setpoint
902
918
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
Summer compensation end at OT
At this outdoor
compensation reaches its peak efficiency (920). If the
outdoor temperature continues to rise, it will no longer
influence the comfort setpoint.
Summer compensation setpoint increase
This setting defines the highest value to which the
comfort setpoint can be increased.
920
OT
919
temperature the summer
Maintenance Document 1589-3