Operating the Boiler 43
3. Press the Up button ( ) or the Down button ( ) until the
desired temperature appears on the display. You can adjust
the temperature while the display is flashing. Once the
display stops flashing, the temperature setting is stored.
Note
●
Take note of the original heating temperature in
case you want to restore it to the default.
●
The default central heating supply water
temperature range is 40°C (Absolute MIN) to 85°C
(Absolute MAX).
●
The default central heating return water
temperature range is 30°C (Absolute MIN) to 65°C
(Absolute MAX).
●
The central heating temperature cannot be
adjusted when the Outdoor Reset Control is used.
●
The central heating temperature cannot be
adjusted, when the Heat Demand function is set to
OpenTherm.
10.4.2 Adjusting the DHW Temperature
WARNING
Before adjusting the water temperature, carefully read “To
prevent burns:” on page 5. Water above 52°C can cause
instant scalding or severe burns.
To adjust the water temperature:
1. Make sure that all hot water taps are closed, and ensure that
the internal circulator and any external circulating pumps
are off.
2. In normal operation mode, press the Up button ( ) The
DHW temperature ( ) is highlighted on the screen.
3. Press the OK button (
) to select the DHW temperature
( ). The highlighted section will flash.
4. Press the Up button ( ) or the Down button ( ) until the
desired temperature appears on the display. You can adjust
the temperature while the display is flashing. Once the
display stops flashing, the temperature setting is stored.
Note
●
Take note of the original water temperature in case
you want to restore it to the default.
●
The default DHW temperature range is 30°C to
65°C.
●
The boiler will retain your settings during a power
outage.
●
The DHW temperature cannot be adjusted, when
the Heat Demand function is set to OpenTherm.
10.5 Resetting the Boiler
If an error message appears, you can try resetting the boiler to
resolve the problem. To reset the boiler, press the Back button
(
).
If resetting the boiler does not solve the problem, refer to the
Troubleshooting section of this manual or contact a Technical
Assistance Service.
Summary of Contents for NCB700-42C
Page 69: ...68 Appendices 12 4 Ladder Diagram 3 15A...
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