A.O. Smith HW 610 warranty HW 300 to, D. System, Single Stage I.I.D. Honeywell GAS Valve

HW 300 TO 670

I.I.D. SYSTEM

CONNECTION DIAGRAM

120 VAC 60 HZ	GND
L1 (HOT) L2 (NEUTRAL)

** FUSED

4 X 4 JUNCTION BOX

WITH TERMINAL STRIP

WHITE

GAS VALVE

IGNITION MODULE

DISCONNECT

SWITCH

THERMAL BALANCER

MV

BROWN

MV

4W

MV/PV

WHITE

MV/PV

** WATER PUMP

** TANK TEMP

PROBE

3Y

1B

2R

BLACK

TRANSFORMER

120/24V

WHITE/TAN WHITE/TAN

PV

HIGH LIMIT

YELLOW

WHITE

RED

GREEN

PV

24V GND

24V

GND

SPARK

COM NO

**SAFETY FLOW SWITCH (REQUIRED)

COIL LIMIT

TO

PILOT

SCHEMATIC DIAGRAM
L1 (HOT)		L2 (NEUTRAL)
	120 VAC 60 HZ
FUSED	THERMAL
DISCONNECT
	BALANCER
SWITCH		GND
TANK TEMP		WATER PUMP
PROBE

SAFETY FLOW

SWITCH120V

24V

HIGH LIMIT	COIL
	LIMIT

IGNITION MODULE

CHASSIS

GROUND

MV MV/PV

IGNITOR WIRE TO

PILOT

PV

NOTE: IF REPLACING ANY FACTORY WIRING, USE TYPE 105°C WIRE OR EQUIVALENT, EXCEPT FOR THE IGNITION WIRE WHICH USES 250°C WIRE AND THE COIL LIMIT WHICH USES 200°C WIRE.

GAS VALVE
** THESE COMPONENTS	%%UWIRING
ARE NOT FACTORY	BY FACTORY
INSTALLED AND MUST BE
	BY INSTALLER
SUPPLIED BY THE
INSTALLER.
	192359-000 Rev. 3

SINGLE STAGE I.I.D. - HONEYWELL GAS VALVE

HW (300 thru 670). (NATURAL AND PROPANE GAS) - U.S. & CANADA

FIGURE 16.

24