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CN203
CN206
A
B
IMPORTANT!
Whenever you disassemble and reassemble the gas
connections, always check for leaks using a leak
detection fluid.
CN200
CN201
Max Heating
Power
Soft-light
Adjustment
Setting the maximum heating circuit power
7. To set the maximum heating circuit power, turn the
On/Off knob to the "ON" position and set the time clock
and any external controls to the "ON" position. Turn the
knob of the heating thermostat clockwise to maximum.
8. Remove the inspection panel of the P.C.B. and fit a
small cross-head screwdriver in to the right hand
potentiometer (see below). Turn clockwise to increase
the pressure or anti-clockwise to reduce the pressure.
Adjust the setting to the required heating pressure
value (displayed on the pressure gauge), as indicated
in the charts shown on Page 31.
9. Turn off the boiler by placing the main switch to the
"OFF" position.
Setting the pressure for soft-light ignition.
Disconnect the detection electrode connection close to
the P.C.B. (S
6.3.3).
ECTION
Start the boiler and during the ignition sequence adjust
the left hand potentiometer until the gas pressure
reads the required gas pressure (see the table on
page 27).
Once the gas pressure is set turn off the boiler and re-
connect the detection electrode to the P.C.B.
NB.: It may be necessary to reset the flame failure
reset a number of times during this operation.
10. Remove the pipe from the test point and tighten the
screw "C" to the pressure test point in order to seal off
the gas.
11. Carefully check the pressure test points for gas leaks
(both inlet and outlet).
29
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