Beckett Model 7505 Typical Furnace Wiring, Intermittent ignition, no valve-on or motor-off delays

Typical Furnace Wiring:

Figure 6 – 7505A (for replacement of R8184G)

►Intermittent ignition, no valve-on or motor-off delays

Figure 8 – 7505B (for replacement of R7184B)

►Interrupted ignition, valve-on delay only (no motor-off delay)

		60	70
L1			80
			W
L2	SAFETY AND		R
		50
	OPERATING	60	70
	LIMITS	THERMOSTAT
		IGNITER
			IGNITER
			L2 (IGN)
			MOTOR
			L2 (MTR)
		MOTOR	L1LIMIT
			LIMIT	TR-TW
			L2	JUMPER
			VALVE	TR
			L2 (VLV)	TW

L1

L2	SAFETY AND
	OPERATING
	LIMITS

IGNITER

MOTOR

OIL VALVE

60	70
	80
	W
	R
50
60	70
THERMOSTAT
	IGNITER
	L2 (IGN)
	MOTOR
	L2 (MTR)
	L1LIMIT
	LIMIT	TR-TW
	L2	JUMPER
	VALVE	TR
	L2 (VLV)	TW

CAD

CELL

CAD CELL

TR-TW Terminals

LocatedTR-TW TERMINALSon

LOCATEDoppositeONsideOPPOSITEof

ControlSIDE OF CONTROLCAD CELL (If applicable)

CAD CELL

TR-TW Terminals

LocatedTR-TW TERMINALSon

LOCATEDoppositeONsideOPPOSITEof ControlSIDE OF CONTROL (If applicable)

Figure 7 – 7505A (for replacement of R7184A)

►Interrupted ignition, no valve-on or motor-off delay

Figure 9 – 7505P (for replacement of R7184P)

►Interrupted ignition, valve-on and motor- off delays

L1

L2	SAFETY AND
	OPERATING
	LIMITS

IGNITER

MOTOR

	60	70
		80
		W	L1
		R	L2	SAFETY AND
50	60	70
				OPERATING
THERMOSTAT				LIMITS
		IGNITER		IGNITER
		L2 (IGN)
		MOTOR
		L2 (MTR)
		L1LIMIT		MOTOR
		LIMIT	TR-TW
		L2	JUMPER
		VALVE	TR	OIL VALVE
		L2 (VLV)	TW

60	70
	80
	W
	R
50
60	70
THERMOSTAT
	IGNITER
	L2 (IGN)
	MOTOR
	L2 (MTR)
	L1
	LIMIT	TR-TW
	L2	JUMPER
	VALVE	TR
	L2 (VLV)	TW

TR-TW Terminals

CAD	LocatedTR-TW TERMINALSon
CELL	LOCATEDoppositeON OPPOSITEside of
CAD CELL	ControlSIDE OF CONTROL	CAD CELL
	(If applicable)

TR-TW Terminals

CAD LocatedTR-TW TERMINALSon

CELL LOCATEDoppositeONsideOPPOSITEof ControlSIDE OF CONTROL (If applicable)

NOTE: Motor-off delay on a 7505P will be disabled if the safety and operating limits as shown in Figures 5 and 9 interrupt power to the control terminal L1.

Connect thermostat leads (if applicable) to the TR and TW terminals on the control or jumper the TR and TW terminals on the control as directed by the appliance wiring diagram.

NOTE: If the thermostat short cycles or operates improp- erly, it may require an isolation relay for proper operation. The Beckett A/C Ready Kit (part no. 51950U) provides this function. Wiring instructions are included with the A/C Ready Kit.

120v GeniSys Control Installation and Operation Manual

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