User manual
8
G
C
Note: If the “COMFORT” function is on during the pump overrun
period, it will be temporarily deactivated. The yellow L.E.D. “G”
will remain on to indicate that the boiler will resume the “COM-
FORT”
mode once the pump overrun period is complete.
Periodic operation of the appliance will occur regardless of
demand on the boiler. This function is normal operation.
The COMFORT mode will automatically de-activate in low water
usage periods i.e. overnight. Turning on a tap will re-activate the
function.
Turning Off the Heating
Installation without a room thermostat:
T
o turn off the heating, turn the selector knob “C” to “ ”. The
boiler will still provide domestic hot w
ater.
Installation with a room thermostat:
To turn off the heating, turn the selector knob “C” to “ ”. The
boiler will still provide hot w
ater for domestic use. With a room
thermostat, turn the dial of the thermostat down to the lowest set-
ting.
Turning off the boiler
To turn the boiler off, push the button ; the display will go
off.
Displa
y: Viewing Normal Functions
When the system is operating, i.e. while the boiler is fulfiling its normal
fu
nctions, the left-hand display will show a letter indicating the fol-
lowing functions:
0
0
No Request for Heat (Stand By)
C
C
Central Heating
c
c
Pump Overrun for Heating
d
d
Domestic Hot Water
h
h
Pump Overrun for Domestic Hot Water
The right-hand display (two-digit) shows:
- in heating mode:
temper
ature of heating system flow;
- in domestic hot water mode: temperature of the DHW leaving
the boiler (MFFI only)
Boiler Shutdown
The boiler is equipped with safety devices which intervene in
certain situations to shutdo
wn the boiler. Some of these situa-
tions are signalled by the boiler and can be corrected by the
user.
LEFT
RIGHT
Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ
01274 488 388
www.heatingspares247.com
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