SIME FORMAT WALL HUNG BOILERS
MODEL 34i AND MODEL 34e
REF: INSTALLATION INSTRUCTIONS
19/02/04
13
3.0 OPERATION
a)
The boiler is controlled by a PCB located in the control
box. A potentiometer on the PCB, together with a thermistor located
on the heat exchanger outlet, controls the temperature of the
circulating water, by modulating the gas pressure.
. The control box also contains the operation selector switch (B),
which has OFF, ON and RESET positions.
a)
OFF will turn the boiler OFF.
b)
ON will start and run the boiler.
c)
RESET is a momentary-on operation, which will reset the ignition
sequence, should the boiler shut down with lockout.
d)
Central Heating Temperature adjusting knob (A)
Two indicator lights are positioned to the right of the Selector Switch.
These indicate fault and reset functions (see Fig. 8).
Fig 8