Operating The Boiler; Turning The Boiler On Or Off; Checking The Ignition System; Setting The Space Heating Temperature - Bosch Singular 4000 Installation Instructions Manual

Installation Instructions

10 Operating the Boiler

10.1 Turning the Boiler On or Off

To turn the Boiler on or off , press the
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
2. After checking combustion, close the manual gas shutoff valve.
Gas
Figure 46
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.
4 2 |
button.
button.

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
Figure 48
2. Press the or buttons until the desired temperature appears on the
digital display.
Figure 49
Temperature range
82–180°F (Fahrenheit mode)
27–82°C (Celsius mode)
Table 17
Singular Combi Boiler - BTC 439003301 B (2021/07)
icon turns on.
Adjusting the water temperature
2°F increments
1°C increments