3
Set the required temperature for the C.H. and D.H.W. by
rotating the potentiometers (D - E) clockwise to increase
or anticlockwise to decrease the temperature.
NOTE: when operating in winter mode, priority is auto-
matically given to providing hot water when the demand
arises.
1.3.2 To turn off the appliance (see fig. 1)
–
For short periods:
Set the selector switch (C) to the OFF position and urn off
the DHW Isolation valve. When required, restore turn the
selector switch to either the SUMMER or WINTER posi-
tion and turn on the DHW Isolation valve.
–
For longer periods:
Set the selector switch (C) to the OFF position, turn off
the DHW Isolation valve, turn off the gas isolation cock.
When required, manually rotate the pump, open the gas
isolation cock, turn on the DHW Isolation valve and turn
the selector switch to either the SUMMER or WINTER
position.
NOTE: If frost protection is required-turn the selector
switch to the summer position, do not isolate the gas
supply, turn off the DHW Isolation valve.
1.4
MINIMUM CLEARANCES
The following MINIMUM CLEARANCES must be available for
servicing the appliance:
1.5
ROUTINE SERVICING
To ensure continued efficient operation of the appliance, it is
recommended that it is checked and serviced as necessary
at regular intervals.
The frequency of servicing will depend upon the particular
installation conditions and usage but in general once a year
should be adequate. It is the law that any service work must
be carried out by a registerd person (C.O.R.G.I.).
1.6
GENERAL INFORMATION
1.6.1
Fault finding indicators (LEDS)
The appliance is fitted with a safety cut-out thermostat. In
the event of overheating this will interrupt the power supply
and prevent the appliance from functioning.
If this occurs, allow the appliance to cool, turn the selector
switch summer/winter to “
“ position and release it imme-
diately, then turn it back to the previous position (see fig. 2).
If the cut-out condition is repeated, turn off the electrical sup-
ply and consult your installer or service engineer.
For ventilation For servicing
ABOVE THE APPLIANCE CASING
200 mm
300 mm
AT THE R.H.S.
15 mm
15 mm
AT THE L.H.S.
15 mm
15 mm
BELOW THE APPLIANCE CASING
200 mm
200 mm
IN FRONT OF THE APPLIANCE
350 mm
500 mm
Fig. 2
Bi-colour led 1
Bi-colour led 2
Operating mode
Bi-colour led 1
Bi-colour led 2
Stand-by
green ON
OFF
Flame presence
green ON
orange ON
Flame detection
circuit fault
green ON
flashing orange
Ignition lock
OFF
red ON
Water flow switch (FL)
or limit stat (TL)
flashing orange
OFF
intervention
Fan fault
flashing green
OFF
C.H. sensor (SM)
fault
steady orange
OFF
Boiler off
OFF
OFF
