Burnham ES2 manual Figure IW-7 Multiple Zone System with Zone Valve Panel

Internal Wiring (continued)

		DHW AQUASTAT
POWER		(L4006, L4080)
	L2	(SUPPLIED BY OTHERS)
SUPPLY	L1
120/60/1

THERMOSTAT THERMOSTAT THERMOSTAT

24V

TRANSFORMER

L1L2

MAIN	EXTRA
END	END	N/O COM N/C
SWITCH	SWITCH	ZONE 4 RELAY

DHW

CIRCULATOR (SUPPLIED BY OTHERS)

							DOMESTIC HOT WATER PRIORITY IS
		MODE					SELECTED USING ZONE PANEL SWITCH
							ZONE 4 PRIORITY
		NORMAL RESET
							OFF	IQ OPTION PANEL
POWER IN			T T	T T	T T	T T	ON
			ZONE 1	ZONE 2	ZONE 3	ZONE 4
							T STAT 1	1	5	1
			FUSE(3				VALVE 1	3	6	2
							T STAT 2	2	7	3
				TACO ZVC	404 (OR EQIV.)
			AMP				VALVE 2		8	4
				FOUR ZONE ZONE VALVE CONTROL			T STAT 3
			MAX	WITH OPTIONAL PRIORITY			VALVE 3
			.)				T STAT 4
							VALVE 4
							POWER
MAIN	EXTRA		ZONE 1	ZONE 2	ZONE 3		ZONE 4
END	END	N/O COM N/C
SWITCH SWITCH		ZONE 4 RELAY	1 2 3 4	1 2 3 4	1 2 3 4	1	2 3 4
			JUMPER				JUMPER
			3 & 4				3 & 4	1 2	3 T	T
				1			PRIORITY
							ZONE
				2
				3
		DHW	2 WIRE ZONE	2 WIRE ZONE	4 WIRE ZONE
			VALVE	VALVE	VALVE
	CIRCULATOR		(NO END SWITCH)	(NO END SWITCH)	(POWER OPEN,
	(SUPPLIED BY				SELF CLOSING)
		OTHERS)

BOILER JACKET

PANEL

SYSTEM

CIRCULATOR

(SUPPLIED BY OTHERS)

WIRING USED WHEN DOMESTIC HOT WATER PRIORITY NOT DESIRED

SYSTEM

CIRCULATOR

(SUPPLIED BY OTHERS)

WIRING USED WHEN DOMESTIC HOT WATER PRIORITY IS DESIRED

LINE VOLTAGE FACTORY WIRING SIZE 14 AWG TYPE TW OR TEW/AWM WIRE LINE VOLTAGE FIELD WIRING

Figure IW-7: Multiple Zone System with Zone Valve Panel

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