Supplied By www.heating spares.co Tel. 0161 620 6677
3
icos system -
User's
Legend
A Boiler ON/OFF switch
B Mains on neon
C Display
D Reset button
E LED
F
CH thermostat knob
G Condensate drain
H Pressure gauge
A
B
F
D
E
C
H
G
2093
To light the boiler. Refer to Frame 1
If a programmer is fitted refer to separate instructions for the
programmer before continuing.
1. CHECK THAT THE ELECTRICITY SUPPLY TO THE BOILER
IS OFF.
2. Set the mains ON/OFF switch (A) to OFF and the thermostat
knob (F) to maximum.
3. Switch ON the electricity supply to the boiler and check that
all external controls, e.g. programmer, room thermostat, etc.,
are ON.
4. Set the mains ON/OFF switch to ON.
The mains on neon (B) will illuminate and the boiler will
commence the ignition sequence, supplying heat to the central
heating, if required.
Note. In normal operation the control unit display (C) will show
the codes:
Standby - no demand for heat.
CH being supplied.
During ignition, the LED (E) will flash.
During normal running the LED (E) will remain illuminated.
Note.
If the boiler fails to light after 3 attempts the fault code
L F
will be
displayed.
Press the reset button (D) for 2 seconds then release. The boiler
will repeat the ignition sequence. If the boiler still fails to light
consult a CORGI registered installer or in IE a competent
person.
Note.
The pump will operate briefly as a self-check, once every 24
hours regardless of system demand.
CAUTION.
To avoid the possibility of injury during the installation, servicing or cleaning of
this appliance care should be taken when handling edges of sheet steel components.
1
BOILER controls
Control of water temperature
The boiler controls the central heating radiator temperature to a
maximum of 82
o
C, adjustable via the thermostat knob (F).
To shut down the boiler
1. For short periods
Set the mains ON/OFF switch (A) to OFF
2. For longer periods
Set the mains ON/OFF switch (A) to OFF, and switch the
electricity supply to OFF.
For longer periods the entire system should be drained.
To relight the boiler
Repeat the procedure detailed in 'To light the boiler'.
Approx. flow temperatures for the boiler thermostat settings are:
Knob Setting
Flow Temperature
°C
°F
Minimum
30
86
Maximum
82
180