2
Set the required te perature for the C.H. and D.H.W. by
rotating the potentio eters (D - E) clockwise to increase
or anticlockwise to decrease the te perature.
NOTE: when operating in winter mode, priority is auto-
matica y given to providing hot water when the demand
arises.
1.3.2 To turn the app iance off (see fig. 1)
–For short periods:
Set the selector switch su er/winter (C) to OFF posi-
tion. When required restore the switch to the SUMMER
or WINTER position and turn on the D.H.W. isolation valve.
–For onger periods:
Set the selector switch su er/winter (C) to OFF posi-
tion and isolate the gas service cock.
When required restore the switch to the WINTER or
SUMMER position and turn on the D.H.W. isolation valve.
Do not isolate the ains electricity or gas supply if frost
protection is required.
NOTE: when gas and e ectrica supp ies must be turned
off, the entire system shou d be drained, inc uding the
domestic water system.
1.4 MINIMUM CLEARANCES
The following MINIMUM CLEARANCES ust be available for
servicing the appliance:
1.5 ROUTINE SERVICING
To ensure continued efficient operation of the appliance, it is
reco ended 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 ust
be carried out by a registerd person (C.O.R.G.I.).
1.6 GENERAL INFORMATION
1.6.1 Fau t finding indicators (LEDS)
The appliance is fitted with a safety cut-out ther ostat. In
the event of overheating this will interrupt the power supply
and prevent the appliance fro functioning.
If this occurs, allow the appliance to cool, turn the selector
switch su er/winter to “ “ position and release it i e-
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.
1.6.2 Temperature/pressure gauge
The gauge (A fig. 1) on the facia panel indicates the approxi-
ate syste pressure. If the nor al running pressure is
seen to decrease over a period of ti e there is a water leak
and you should consult your installer or service engineer.
1.6.3 E ectrica supp y
The ains plug used ust be a 3 pin type to BS1363, and
fused at 3 A. THIS APPLIANCE MUST BE EARTHED.
NOTE: an interruption in the e ectricity supp y whi st the
burner is a ight may cause the overheat thermostat to
operate. If this is suspected, turn the rotary switch to “ “
position and re ease it immediate y, then turn it back to
the previous position.
TO CONNECT A PLUG
As the colour of wires in the ains lead of this appliance ay
not correspond with the coloured arkings identifying the
ter inals in your plug, proceed as follows:
the wire which is coloured green and yellow ust be con-
nected to the ter inal in the plug which is arked with the
letter E or by the earth sy bol - or coloured green and yel-
low; the wire which is coloured blue ust be connected to
the ter inal arked with the letter N or coloured black; the
wire which is coloured brown ust be connected to the ter-
inal arked with the letter L or coloured red.
1.6.5 Venti ation
If the appliance is installed in a cabinet, the latter MUST NOT
be used for storage purposes.
Any ventilation provided for the appliance during installation
MUST NOT be blocked and a periodic check ust be ade
to ensure that the vents are free fro obstructions.
For venti ation For servicing
ABOVE THE APPLIANCE CASING 200 300
AT THE R.H.S. 15 15
AT THE L.H.S. 15 15
BELOW THE APPLIANCE CASING 200 200
IN FRONT OF THE APPLIANCE 350 500
Fig. 2
