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6.5 INITIAL OPERATION
6.5.1 Preliminary warnings
- Checking all of the gas pipe joints and make sure that gas reaches the boiler (with the gas cock turned on)
- Make sure that the central heating circuit is completely full and vented. The pressure gauge should indicate
a pressure of between 0.75 and 1 bar.
- Make sure that the boiler is connected to the correct electricity supply.
- Make sure that the air intake and the flue outlet is not blocked.
6.5.2 Domestic hot water service
To turn on the boiler turn the main control switch to the summer set-
ting. The boiler is then ready to supply D.H.W. on demand.
Whenever you turn on any hot tap the boiler fires up automatically.
By means of the D.H.W. temperature selector control knob, any
water temperature of between 35 and 60°C may be selected.
6.5.3 Hot water and central heating service
Set the time clock to position 1 (uppermost) and the room stat (if fitted) to max temp. Then turn the main con-
trol switch to the winter setting. The burner will fire up. By means of
the central heating temperature selector control knob, any water
temperature of between 60 and 85°C may be selected. The boiler
will remain on until the temperature selected on the room thermostat
or on the boiler itself is reached.
Whenever there is a demand for D.H.W. on the central heating set-
ting, the boiler is ready to supply it giving priority to the D.H.W. with
the central heating on standby until the D.H.W. demand ceases.
6.5.4 Turning the boiler off
- Turn the main control switch to the O setting.
- Turn off the gas supply to the boiler.
6.5.5 Appliance safety lock-out
This boiler has a cut-out indicator built in to it. Whenever a malfunction is detected, the boiler switches off
automatically and the indicator lights up (red pilot light).
To restart the boiler press the restart button. The red indicator should go out. If there is air in the system or
the boiler is fired before filling the system fully, the high limit stat will trip. If this occurs there will be no lights
illuminated.The stat will reset itself but will take a minute or so and pressing the reset button will not restart
the boiler until the stat has cooled.
IMPORTANT: Whenever the boiler has been left idle for any length of time, or when a new gas bottle is
installed (propane models), the appliance may switch off due to the presence of air in the pipes. In cases such
as these, the reset button may need to be pressed several times until all the air is expelled.
