S9360A, S9361A, S9380A, S9381A INTEGRATED BOILER CONTROLLERS
15
66-1203—05
Fig. 11. Operating Sequence.
Table 7. Thermal Purge Settings.
Parameter name
Minimum value
Maximum Value
Default
Boiler temperature drop
Not adjustable
Not adjustable
10 °F
Thermal purge temperature limit
120 °F (or OFF)
160 °F
140 °F
Thermal purge temperature rate of drop
Not adjustable
Not adjustable
5 °F/minute
Thermal purge time delay
1 minute
10 minutes
2 minutes
IGNITION
SEQUENCE
IDLE
ALL OUTPUTS OFF
CHECK LEAKAGE/
SET FLAME BIAS
WAIT LIMIT
SWITCH CLOSE
CHECK DAMPER/
PRESSURE SWITCH
OPEN
DRIVE DAMPER/
INDUCER WAIT FOR
SWITCH CLOSE
PREPURGE
SPARK:
TURN PILOT
VALVE ON
DSI MODEL:
IGNITION BEGINS AND
MAIN VALVE OPENS
CHECK FLAME
PRE-TRIAL
SOFT LOCKOUT
PROVE FLAME
STOP SPARKING
FLAME STABILIZATION
TURN MAIN VALVE ON
RUN
POSTPURGE
WATER TEMPERATURE LOW AND THERMOSTAT ACTIVE
BIAS DONE
WATER TEMP.
HIGH OR CALL
FOR HEAT LOST
SWITCH OPEN
SWITCH CLOSE
SWITCH OPEN
FLAME DEB ON
FLAME DEB OFF
TIME OUT
TIME OUT OR
MANUAL RESET
LIMIT SWITCH
OPEN
TIME OUT
FLAME SENSED
DSI: TIME OUT
FLAME PROVED
TIME OUT
WATER TEMPERATURE HIGH OR THERMOSTAT CALL FOR HEAT LOST
RETRY DELAY
TIME OUT
NOT FOR DSI
NOT FOR DSI
DSI
A
TIME OUT
RECYCLE DELAY
DAMPER/
PRESSURE
SWITCH OPEN
CHECK FLAME
POST-TRIAL
FLAME DEB ON
FLAME DEB OFF
FLAME LOST
A
TIME OUT
A
TIME OUT
TIME OUT
B
B
CIRCULATOR ON
CIRCULATOR OFF
THERMOSTAT CALL FOR HEAT LOST
IDLE
ALL OUTPUTS OFF
THERMOSTAT CALL FOR HEAT ACTIVE
CIRCULATOR
CONTROL
M33801
LIMIT SWITCH CLOSE
HARD LOCKOUT
CSD-1
MODEL
MANUAL
RESET
MAX NUMBER OF
RETRIES EXCEEDED
MAX NUMBER OF
RECYCLES EXCEEDED