25
It is the law that all gas appliances are installed by a regis-
tered person, in accordance with the above regulations.
Failure to install appliances correctly could lead to prosecu-
tion. It is in your own interest, and that of safety, to ensure
that the law is complied with.
It is essential that the appli-
ance is correctly earthed. An electricity supply of 240 V -
50 Hz fused at 3 A is required.
Read these instructions care-
fully before attempting to operate the appliance.
1.1
INTRODUCTION
The Sime
“FORMAT 34E - 34I BF”
family is a fully automatic,
wall mounted, room sealed, fan assisted range of combina-
tion boilers.
The appliance provides central heating as required and pro-
duces instantaneous hot water upon demand.
The heat output is automatically controlled by the fully modu-
lating gas valve (within its pre-set limits), and there is user
adjustable potentiometer to control the temperature of cen-
tral heating.
A pressure gauge is fitted and an overheat thermostat is
incorporated to protect against fault conditions.
1.3
OPERATING INSTRUCTIONS
1.3.1
To light the appliance (see fig. 24)
– Check that the electricity supply is off and that the D.H.W.
isolation valve is in the open position (lever vertical). Check
that the gas supply is on.
– Turn the selector switch summer/winter (C) to SUMMER
(water only) position “
”.
– Switch on the electricity supply and full open any D.H.W.
tap. The burner will light.
Check that the burner has lit by looking through the view-
ing window (F). If the burner fails to light, turn the selector
switch summer/winter to “
“ position and release it
immediately; then turn it to the SUMMER position: the
burner should now light. Turn off the tap.
– Check that the room thermostat and time clock are call-
ing for heat. Turn the heating potentiometer (D) to maxi-
mum (fully clockwise).
– Turn the selector switch summer/winter to the WINTER
position “
❄
" and the burner will light to serve the heating load.
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 the appliance off (see fig. 24)
–
For short periods:
Set the selector switch summer/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 longer periods:
Set the selector switch summer/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 mains electricity or gas supply if frost
protection is required.
NOTE: when gas and electrical supplies must be turned
off, the entire system should be drained, including the
domestic water system.
1.4
MINIMUM CLEARANCES MODEL “34I BF”
The following MINIMUM CLEARANCES must be available for
servicing the appliance:
OPERATING INSTRUCTIONS FOR THE USER
Fig. 24
A
E
C
F
B
D
DHW
ISOLATION VALVE
For ventilation For servicing
ABOVE THE APPLIANCE CASING
400 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
100 mm
500 mm
"34 E" model
KEY
A
Pressure gauge
B
Time clock (optional)
C
C.H. potentiometer
D
Rotary switch
E
Viewing window
F
Viewing window
Summary of Contents for FORMAT 34E BF
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