6. When you have completed the above operations, turn
o
ff the hot water tap, reconnect the supply terminal to
the modureg on the gas valve, reconnect the
c
ompensation pipe and replace the cap on the screw
of the modureg.
S
etting the maximum heating circuit power
1.
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.
2. Remove the inspection panel of the P.C.B. and fit a
small cross-head screwdriver in to the right hand
potentiometer (max. heating power).
Turn clockwise to increase the pressure or anti-
clockwise to reduce the pressure. Adjust the setting to
the required heating value (displayed on the pressure
gauge), as indicated in
Table B shown on Page 40.
3. Turn off the boiler by placing the main switch to the
"OFF" position.
Setting the pressure for soft-light ignition.
1. Disconnect the detection electrode connection close to
the P.C.B. (FIG. 4.1);
2. Start the boiler and during the ignition sequence adjust
the left hand potentiometer until the gas pressure
reads the required gas pressure
(Soft-light pressure
table - Page 37);
3. 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;
4. Remove the pipe from the test point and tighten the
screw “C” and test for tightness;
5. Carefully check the pressure test points for gas leaks
(both inlet and outlet).
FIG. 4.1
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