Lennox FCA 60

Page 46 - IOM / ROOF-TOP FLEXY™ Series
Time in seconds
Operations
Control operation sequence
Extraction fan
Smoke extraction fan "ON"
30 to 45 seconds pre-Ventilation
Fire-up spark electrode 4s
Opening of the gas valve
"High Heat"
Flame propagation towards
the ionisation probe
If Ionisation within 5sec :
Normal running
Otherwise fault on gas
ignition control block
After 5 minutes, fault reported
on the climatic controller
GAS BURNER
2. GAS BURNER RESET
- Press the "reset" button" on the gas control block to reset the unit after a fault
3. START UP AND SET UP OF THE GAS UNIT
3.1 General operation check of the system
- Check that the centrifugal fan blower in the unit is running.
3.2 Set up
- Set the setpoint 59 and 60 to "ON". This will priorities the gas burner.
- Increase the set temperature "1" (room set point temperature) to a temperature higher than the room temperature.
3.3 Burner start up check
RESET
button
Figure 44
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If incorrect sequence refer to the fault analysis table to identify the problem.