Slant/Fin SX-210, S-150, SX-150 dimensions Propane GAS S8600M & S8670E

Sentry 13

SEQUENCE OF OPERATION FOR SENTRY BOILERS

EQUIPPED WITH CONTINUOUS BURNING PILOTS

FOR DIAGRAMS SHOWN ON PAGE 14.

LIGHTED PILOT HEATS THERMOCOUPLE AND KEEPS PILOTSTAT OPEN.

				THERMOSTAT CALLS FOR HEAT
CIRCULATOR ENERGIZED				HIGH LIMIT CONTACTS CLOSED?		NO
(IF COMBINATION AQUASTAT				LOW WATER CUT-OFF (WHEN USED)
CONTROL USED)				CONTACTS CLOSED?
					YES
			VENT DAMPER RELAY ENERGIZED.
		VENT DAMPER MOTOR OPENS VENT DAMPER.
				END SWITCH CLOSES.
			MAIN VALVE OPERATOR OPENS.
		LIGHTED PILOT IGNITES MAIN BURNERS.
		IF PILOT SHOULD BLOW OUT, THERMOCOUPLE
			WILL SHUT OFF MAIN BURNER.
	WHEN THERMOSTAT IS SATISFIED, OR WHEN HIGH LIMIT
	OR LOW WATER CUT-OFF CONTACTS ARE OPEN, MAIN
				VALVE OPERATOR CLOSES.
		VENT DAMPER CLOSES. CIRCULATOR OFF.
	SYSTEM GOES TO STANDBY WITH LIGHTED PILOT.

NO FURTHER

ACTION

SEQUENCE OF OPERATION FOR SENTRY BOILERS EQUIPPED WITH HONEYWELL INTERMITTENT

IGNITION SYSTEM (IID) FOR DIAGRAMS SHOWN ON PAGE 15.

		THERMOSTAT CALLS FOR HEAT
CIRCULATOR ENERGIZED		HIGH LIMIT CONTACTS CLOSED?		NO
(IF COMBINATION AQUASTAT		LOW WATER CUT-OFF (WHEN USED)
CONTROL USED)		CONTACTS CLOSED?
			YES
		VENT DAMPER RELAY ENERGIZED.
	VENT DAMPER MOTOR OPENS VENT DAMPER.
		END SWITCH CLOSES.
		IGNITION CONTROL ENERGIZED

NO FURTHER

ACTION

SPARK GENERATOR MODULE POWERED.

S8600F OR S8600M: IGNITION SPARK STARTS AND PILOT VALVE OPERATOR OPENS. S8670E: IGNITION SPARK AND PILOT VALVE OPERATOR DELAYED FOR 30-70 SECONDS.

L.P. PROPANE GAS (S8600M & S8670E)

IGNITION TRIAL CONTINUES FOR 90 SEC- ONDS. AFTER TRIAL FOR IGNITION, SYS- TEM SHUTS OFF. AFTER 5 MINUTES MOD- ULE RE-INSTATES TRIAL FOR IGNITION. IF PILOT FLAME NOT ESTABLISHED, IGNI- TION TRIAL, SYSTEM SHUT-OFF AND 5 MINUTES WAIT SEQUENCE REPEATS CONTINUOUSLY.

NO NO

THE PILOT FLAME ESTABLISHED ?

YES

SPARK GENERATOR OFF. MAIN VALVE OPERATOR OPENS. MODULE MONITORS PILOT FLAME.

NATURAL GAS (S8600F) IGNI-

TION SPARK CONTINUES.

PILOT VALVE REMAINS OPEN

UNTIL SYSTEM IS RESET.

WHEN THERMOSTAT IS SATISFIED OR WHEN HIGH LIMIT OR LOW WATER CUT-OFF CONTACTS ARE OPEN, VALVE OPERA- TORS CLOSE. PILOT & MAIN BURNERS OFF. VENT DAMPER CLOSES. CIRCULATOR OFF. SYSTEM GOES TO STANDBY.