USER GUIDE
USING THE BOILER
Your system should be serviced at least once a year by a qualified engineer.
If the boiler is subject to heavy use, it may require servicing more than once a year - consult your service engineer for advice.
Starting the burner:
In normal operation, the burner starts automatically whenever the boiler temperature falls below the set temperature.
Understanding the control panel
Summer/winter switch
MCBA controller - display
On/off switch
Combined temperature and pressure gauge
There are no user parts inside the control panel.
Heating system pressure
From time to time you may need to top up the heating system pressure. This pressure is indicated by the combined temperature and pressure gauge on the boiler control panel.
The minimum pressure when the boiler is cold should be 1 bar. The precise operating pressure required depends on the height of the building, and your installer will have informed you of this value at the time of installation (see
Commissioning Section - Filling the hot water and heating circuits).
If the pressure falls below 1 bar, the boiler water pressure switch will turn the boiler off until pressure is restored.
To
First, switch the boiler OFF on the on/off switch and isolate the external electrical supply. Then remove the casing top front panel by pulling it forward. The filling valves “A” and “B” can now be seen. Open both valves and allow the system to fill. When the combined temperature and pressure gauge shows the required pressure, close both valves. Replace the casing top front panel. Restore the power supply and switch the boiler on.
Safety Valves
If water discharges from any of the safety valves, switch the boiler off and call a service engineer.
A
B
15
