Amtrol whs-series warranty Mechanical Aquastat Wiring Diagrams, Boiler Controls, Zone Valves, Wire

Mechanical Aquastat Wiring Diagrams

Common wiring diagrams are shown below. Select the appropriate diagram for the application. Diagrams are popular examples only. If your application is not shown, contact AMTROL Technical Support at 401.535.1216.

Boiler Controls

Typical Oil Burner (Non-Priority)

Typical Gas Valves (Non-Priority)

24V Thermostat Input (Priority)

L1

AQUASTAT

HONEYWELL

R4222D 1013

OR EQUIVALENT

DPDT RELAY

1	3	ZR
	2
4	6
	5	CIRCULATOR
	COIL
		L2

W

Z

AQUASTAT

L1

HONEYWELL

R4222D 1013

OR EQUIVALENT B DPDT RELAY

1	3
	2
4	6
	5
	CIRCULATOR
	COIL
	L2

	HONEYWELL
	R4222D 1013
T	OR EQUIVALENT	T
	DPDT RELAY

AQUASTAT		1	3
			2
	C1	4	6
			5
			CIRCULATOR
L1			COIL

WHEN NO “ZR” TERMINAL IS AVAILABLE

GO TO THE SUPPLY SIDE OF THE HI LIMIT

L2

Zone Valves

3-Wire	4-Wire
AQUASTAT	AQUASTAT

					24VAC
	24VAC
END
SWITCH					MOTOR
			TRANSFORMER		ZONE VALVE
ZONE VALVE	TRANSFORMER		L2	L1	END
	L2	L1			SWITCH

Other Applications

Multi-Zone Control

AQUASTAT

L2 L1

DHW ZONE

XX TO BOILER

CIRCULATOR

OR ZONE VALVE

Boiler Control Input

AQUASTAT

DHW ZONE

CIRCULATOR

OR ZONE VALVE