Mitsubishi Heavy Industries FDCW100VNX-A, Technical Manual

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'19 • HM-T-340
Flow line temperature – maximum and minimum
values
This function is used in order to limit max-min supply
temperature. The heating / cooling curve becomes fl at beyond
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
The fi gure at the end of the curve indicates the curve number.
The fi gure beside the thermometer icon gives the curve off set.
Use the control knob to set a new value.
Confi rm the new setting by pressing the OK button.
Curve 0 is an own curve created in menu 1.9.7.
To select another curve (slope):
1.
Press OK button to access the setting mode.
2.
Select a new curve. The curves are numbered from 0
to 15, and the bigger number curve has steeper slope.
Curve 0 means that "own curve" (menu 1.9.7) is
used.
3.
Press OK button to exit the setting.
To read off a curve:
1. Turn the control knob so that the ring on the shaft
with the outdoor temperature is marked.
2. Press OK button.
3.
Follow the grey line up to the curve and out to the
left to read off the value for the supply temperature
at the selected outdoor temperature.
4. You can now select to take read outs for different
outdoor temperatures by turning the control knob to
the right or left and read off the corresponding fl ow
temperature.
5. Press OK or Back button to exit read off mode.
TIP
Wait 24 hours before making a new setting, so that the
room temperature has time to stabilise.
If it is cold outdoors and the room temperature is too low,
increase the curve slope by one increment.
If it is cold outdoors and the room temperature is too high,
lower the curve slope by one increment.
If it is warm outdoors and the room temperature is too low,
increase the curve offset by one increment.
If it is warm outdoors and the room temperature is too high,
lower the curve offset by one increment.
Menu 1.9.2 - external adjustment
external adjustment 1.9.2
climate system 1
climate system 2
climate system 3
climate system 4
°C
°C
. y l n o " 1 m e ts y s e t a m il c " s w o h s y a l p si d , m e ts y s e t a m il c e n o s i e r e h t fI *
climate system
Setting range: -10 to +10 or desired room temperature if the
room sensor is installed.
Default value: 0
Connecting an external contact, for example, a room thermostat
or a timer allows you to temporarily or periodically increase or
decrease the room temperature while heating. When the contact
is on, the heating curve offset is changed by the number of
steps selected in the menu. If a room sensor is installed and
activated the desired room temperature (°C) is set.
If there is more than one climate system the setting can be
made separately for each system.
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