Fujitsu WATERSTAGE WS A050DD6 Series Maintenance Document page 61

Split system single phase type
Comfort cooling setpoint
Line no. Programming line
902 Comfort cooling setpoint
In cooling mode the room temperature control follows
the comfort setpoint adjusted under this setting. The
cooling comfort setpoint can be displayed with a knob
on the room unit.
Release:
Line no. Programming line
907 Release
(24h/day / heating circuit time pgm / Time program 5)
The "Release" setting determines the time program
according to which cooling is released.
•
24h/day:
Cooling is continuously activated (24h/day).
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
Maintenance Document 1589-3
Flow temp
setpoint
908
909
25°C
In summer the comfort setpoint is gradually increased
in relation to the outdoor temperature (see lines 918-
920).
•
heating circuit time program:
Cooling is activated according to the heating circuit
time program.
•
Time program 5:
Cooling is released according to time program 5.
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
setpoint is changed the curve will automatically
adapt.
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