Garland 200 - Manual (Page 37)

Part # MCOSM06 Rev 1 (11/03/08) Page 37
If the main burner flame extinguishes during the run state,
the control de-energizes the main gas valve for an interpurge
of 30 seconds. After this period, another trial for ignition is
initiated. If this flameout cycle repeats for a total of 16 times
(main burner flame established, then lost), the control will:
• Enter the lockout mode if the control is a G760. The
thermostat contacts must be opened for 30 seconds and
then closed to escape the lockout condition.
• Enter the 100% shutoff mode and recycle period (5
minute recycle delay for the G765 and 60 minute recycle
delay for the G766) before beginning another trial for
ignition, starting with prepurge.
Wiring Diagram for G76x Ignniton Control
Main Burner
Ground
Spark Electrode/
Sensor Assembly
G76x Ignition Control
Limits In
Thermostat
Line Only
Thermostat
Transformer
Power
Supply
MAIN
VALVE
MAIN
VALVE
GROUND
5
LED
THS 2
M.V. 3
SENSE 4