Garland 200 - Manual (Page 34)

Page 34 Part # MCOSM06 Rev 1 (11/03/08)
If the pilot burner flame extinguishes during the run state
(flameout), the control de-energizes the pilot and main gas
valve for the interpurge period. After this period, another
trial for ignition is initiated. If the flameout cycle repeats for a
total of 16 times (pilot burner flame established then lost), the
control will:
• Enter the lockout mode if the control is a G770/G777. The
thermostat contacts must be opened for 30 seconds and
then closed to escape the lockout condition.
• Enter the shutoff mode and recycle period (5 minute
recycle delay for the G775/G779 and 60 minute recycle
for the G776/G778) before beginning another trial for
ignition, starting with prepurge.
Wiring Diagram For Integral Spark/Sense Without Vent Damper
GROUND
5
24 V
LED
THS 2
PV 1
MV 3
Transformer
Pilot Burner
Assembly Integral
Igniter/Sensor
Main Burner
Ground
Pilot
Gas Supply
Pilot
Valve
Main
Valve
Ignition Control Limits in Thermostat
Line Only