5
Sales/Spares 01604 707012 Replacement Help Line 01604 707011
7.
TO LIGHT THE BOILER
7.1
Switch the mains power ON and the boiler LED display will show “AP”.
This puts the boiler into the Air Purge Mode. See Figure 3.
7.2
Press the reset button “K4” twice. The boiler will go onto standby. This is
the winter mode. See Table 1.
7.3
SETTING THE WATER TEMPERATURE
7.3.1
To set the water heating temperature press and hold “K1”, this will flash
until the °C temperature shows. by pressing the + and - buttons to the
desired temperature. The temperature flashes 5 time to set the temperature
and the display will go back to standby.
8.
OPERATING FUNCTIONS
8.1
OPERATING THE CENTRAL HEATING
When the heater fires in CH mode it fires for 1 minute, modulating the heater. The
display will flash showing the radiator, the small flame and temperature. A flame
symbol increases with the demand for heat. Once temperature is reached the display
will go back to standby.
Approximate flow temperatures for the heater thermostat settings are:
8.2
DISPLAY CODES
In normal operation the heater status display will show codes:
1.
Standby - no demand for heat.
2.
CH being supplied.
3.
Heater frost protection - heater will fire if temperature is below 5 degrees °C.
4.
During normal operation the burner on indicator will remain illuminated when the burner is lit.
Note:
If the heater fails to light after five attempts the fault code will be displayed.
8.3
TO SHUT DOWN THE BOILER
Set the mode to OFF
To relight the heater repeat the procedure detailed in ‘To light the heater’.
8.4 FROST
PROTECTION
If no system frost protection is provided and frost is likely during a short absence from home, leave the
heating controls (if fitted) at a reduced temperature setting. For longer periods, the entire system should be
drained.
If the system includes a frost thermostat then, during cold weather, the boiler should be turned OFF at the
time switch (if fitted) ONLY. The mains supply should be left switched ON, with the heater thermostat left in
the normal running position.
8.5
CONDENSATE DRAIN
The condensate drain must not be modified or blocked.
Blockage of the condensate drain, caused by debris or freezing, can cause automatic shutdown of the
heater.
If freezing is suspected and the pipe run is accessible an attempt may be made to free the obstruction by
pouring hot water over the exposed pipe and clearing any blockage from the end of the pipe. If this fails to
remedy the problem the assistance of a Gas Safe Registered Engineer or in IE a Registered Gas Installer
(RGII) should be sought.
TABLE. 1
Button Setting
CH Flow Temperature °C
Minimum
40°C
Maximum
80°C
