Page 80 - IOM / ROOFTOP BALTIC Series - 0704 - E
HEATING : MODULATING gas burner
MODULATING GAS ( under patent INPI May 2004)
The actuator
The actuator receives an information 0-10V from the
regulation for the positioning of the air shutter; then the
servo-motor transmits its position to the printed-board
which will order the valve.
Check position and operation of the actuator
STARTING UP THE GAS BURNER
Purge the pipe-work near the connection on the ignition
control Valve for a few seconds.
- Check that the unit's Treatment Fan Blower is running.
- Set the control to "ON" This will priorities the gas burner.
- Increase the set temperature (room set point
temperature) to a temperature higher than the actual room
temperature.
The start of the gas burner must be done at
high heat
injection.
Disengaging for
hand drive
operation
Manual rotation
of the actuator
Bearing surface of
the actuator's
screw
Actuator screw
Maximum opening of the actuator
Minimum opening of the actuator
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