5
Sales/Spares 01604 707012 Replacement Help Line 01604 707011
5.
TO LIGHT THE BOILER
5.1
Switch the mains power ON and the boiler LCD display will show “AP”. This puts the
boiler into the Air Purge Mode. See Figure 2.
5.2
Press the reset button “K4” twice. The boiler will go onto standby. See Figure 3. This is
the winter mode.
SETTING THE DHW WATER TEMPERATURE
5.3
To set the hot water temperature press and hold “K7”, this will flash until the °C
temperature shows. By pressing the + and - buttons to set the desired temperature. The
temperature flashes 5 times to set the temperature and then goes back onto standby.
SETTING THE CH WATER TEMPERATURE
5.4
To set the central heating temperature press and hold “K1”, this will flash until the °C
temperature shows. By pressing the + or - buttons to set the desired temperature.
The temperature flashes 5 time to set the temperature and the display will go back to
standby.
6.
OPERATING FUNCTIONS
6.1
OPERATING THE DOMESTIC HOT WATER
When the hot water is called for by turning on the hot tap, the boiler will fire. The display
will show the full flame symbol, water temperature and flashing tap symbol, until the
hot tap is turned off and the display will return to standby or heating mode. See Figure
4.
Hot water has priority over central heating, so the central heating will stop while hot
water is being supplied
6.2
OPERATING THE CENTRAL HEATING
When there is a call for central heating the boiler will fire for 1 minute at low and then
will increase the modulation to match the demand for heating. The display will show
the flame symbol, water temperature and flashing radiator symbol, until the call for
central heating stops and the display will return to the standby mode. See Figure 5.
Approximate flow temperatures for the boiler thermostat settings are:
6.3
DISPLAY CODES
In normal operation the boiler LCD display will show:
1.
Standby - no demand for heat. Figure 3.
2.
CH being supplied. Figure 5.
3.
DHW being supplied. Figure 4.
4.
Boiler frost protection - boiler will fire if temperature is below 3°C.
5.
During normal operation the burner on indicator will remain illuminated when the burner is lit.
Note:
If the boiler fails to light after five attempts the fault code will be displayed. See trouble shooting.
6.4
TO SHUT DOWN THE BOILER
Set the mode to OFF by pressing K4.
To relight the boiler repeat the procedure detailed in ‘To light the boiler’.
6.5
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 heating should be turned OFF at the
time switch (if fitted) ONLY. The mains supply should be left switched ON, with the boiler set to heating ON
and thermostat left in the normal running position.
FIGURE 2
FIGURE 3
FIGURE 4
FIGURE 5
TABLE. 2
Button Setting
CH Flow Temperature
Minimum
40°C
Maximum
60°C
