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Installation Instructions
Singular Combi Boiler - BTC 439003301 B (2021/07)
10 Operating the Boiler
10.1 Turning the Boiler On or Off
To turn the Boiler on or off , press the button.
Figure 45
When the boiler is on, the water temperature which has been set recently will
appear on the digital display.
10.2 Checking the Ignition System
1. To turn the Boiler on or off , press the button.
2. After checking combustion, close the manual gas shutoff valve.
Figure 46
Gas
3. Check that the combustion lamp is off on the digital display.
Figure 47
4. If the lamp does not turn off , contact the installer or supplier.
10.3 Setting the Space Heating Temperature
WARNING:
If your household includes children, or elderly or disabled
individuals, consider using a lower temperature setting.
High temperatures circulating through baseboards or
radiators can cause burns when touched.
To set the space heating water temperature:
1. Press the MODE button until the icon turns on.
Figure 48
2. Press the or buttons until the desired temperature appears on the
digital display.
Figure 49
Temperature range Adjusting the water temperature
82–180°F (Fahrenheit mode) 2°F increments
27–82°C (Celsius mode) 1°C increments
Table 17
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