HEATING : MODULATING GAS BURNER 60 & 120 kW
FLEXYII_WSHP-IOM-0909-E Page 75
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
actuator 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.
Manual rotation
of the actuator
Disengaging for
hand drive operation
Actuator screw
Bearing surface of the
actuator’s screw
Maximum opening
Minimum opening
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