Mitsubishi Heavy Industries FDCW60VNX-W, Installation Manual

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48
Commissioning and adjusting
Heating/cooling curve setting
heating curve 1.9.1.1
system
outdoor temp. °C
flow temperature °C
cooling curve 1.9.1.2
system
outdoor temp. °C
flow temperature °C
heating curve
Setting range: 0 – 15
Default value: 9
cooling curve (accessory required)
Setting range: 0 – 9
Default value: 0
The prescribed heating curve for your house can be viewed in
the menu heating curve . The task of the heating curve is to
give an even indoor temperature, regardless of the outdoor
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heating curve, the control module determines the temperature
of the water to the heating system, supply temperature, and
there by the indoor temperature. Select the heating curve and
read off how the supply temperature changes at different
outdoor temperatures here. If there is cooling function, the
same settings can be made for the cooling curve.
Curve coefficient
The heating/cooling curve shows the relation between the
target supply temperature and the corresponding outdoor
temperature. A steep curve indicates that supply temperature
becomes higher at low outdoor air temperature in heating and
it becomes lower at high outdoor air temperature in cooling.
30
40
50
60
70
°C
- 40°C
UTETEMPERATUR
- 10 0 10 - 20 - 30
Brantare kur vlutning
Supply temperature
Outdoor tempera
Steeper curve slope
The optimum slope depends on the climate conditions in your
location, the type of heating device (radiators or under floor
heating) and how well insulated the house is.
The curve is set when the heating installation is installed, but
may need adjusting later. Normally, the curve will not need
further adjustment.
CAUTION
In the event of making fine adjustments of the indoor
temperature, the curve must be offset up or down instead,
this is done in menu 1.1 temperature .
Curve offset
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outdoor temperature range by this function. This is offset by
5 °C by adjusting 2 steps.
The target temperature can be parallel offset in the entire
outdoor temperature range with this function. It is offset by
5 °C by adjusting 2 steps.
30
40
50
60
70
°C
- 40 °C
UTETEMPERATUR
- 10 0 10 - 20 - 30
Förskju ten vär mekurva
Supply temperature
Outdoor temperature
Offset heating curve
Flow line temperature – maximum and
minimum values
This function is used in order to limit max-min supply
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max / min target temperature.
CAUTION
Underfloor heating systems are normally max flow line
temperature set between 35 and 45°C. Take care not to
cause low temperature burns in case it is set higher than
35°C.
Must be restricted with underfloor cooling min. flow line
temp. to prevent condensation.
Check the max temperature for your floor with your
installer/floor supplier.
30
40
50
60
70
°C
- 40 °C
UTETEMPERATUR
- 10 0 10 - 20 - 30
Maximivärde
Minimivärde
Supply temperature
Outdoor temperature
Maximum value
Minimum value