Fujitsu WATERSTAGE WS A050DD6 Series Maintenance Document page 55

Split system single phase type
Heating curve displacement
The curve shift (offset)
temperature in a general and even manner over the
full range of outdoor temperature. In other words,
the shift should be corrected when the room
temperature is generally too high or too low.
Eco Functions
Line no.
HC1 HC2
730 1030
Summer/winter heating limit
The summer/winter heating limit switches the heating
on or off through the year according to the
temperature ratio.
automatically when in automatic mode and thus
avoids the user having to turn the heating on or off.
Changing the input value makes the respective
annual periods (summer/winter) shorter or longer.
If the value is increased:
-
Changing to winter operating mode is advanced,
changing to summer mode is delayed
Example:
Flow temperature setpoint
Line no.
HC1 HC2
740 1040
741 1041
This limitation allows to define a range for the orders
to start. When instructed to start the heating circuit
reaches the threshold,
permanently at the maximum or minimum, even if the
heat demand continues to increase or decrease.
Maintenance Document 1589-3
modifies the
Programming line
Summer/winter heating limit
Changeover is performed
Programming line
Flow temp setpoint min (for fan convectors)
Flow temp setpoint max
this record
flow
If the value is decreased:
-
Changing to winter mode is delayed; changing to
summer mode is advanced.
Information:
This function does not work in "Continuous Comfort
temperature" mode. (Sunlight)
The controller displays "ECO".
The outdoor temperature is attenuated to take the
building's dynamics into account.
Attenuated outdoor T
remains
Sum/win heating limit + 1°C
Sum/win heating limit
Sum/win heating limit - 1°C
Days
55