Beckett 7505 - Manual (Page 7)

7 120v GeniSys Control Installation and Operation Manual
Typical Furnace Wiring:
Figure 6 – 7505A (for replacement of R8184G)
Intermittent ignition, no valve-on or
motor-off delays
►
SAFETY AND
OPERATING
LIMITS
LIMIT
L1
L2 (VLV)
VALVE
L2
MOTOR
L2 (MTR)
L2 (IGN)
IGNITER
CAD
CELL
MOTOR
IGNITER
W
R
80 70 60
50
50
70
80
60
CAD CELL
THERMOSTAT
TR
TW
TR-TW
JUMPER
TR-TW TERMINALS
LOCATED ON OPPOSITE
SIDE OF CONTROL
L1
L2
LIMIT
Figure 7 – 7505A (for replacement of R7184A)
Interrupted ignition, no valve-on or
motor-off delay
►
SAFETY AND
OPERATING
LIMITS
LIMIT
L1
L2 (VLV)
VALVE
L2
MOTOR
L2 (MTR)
L2 (IGN)
IGNITER
CAD
CELL
MOTOR
IGNITER
W
R
80 70 60
50
50
70
80
60
CAD CELL
THERMOSTAT
TR
TW
TR-TW
JUMPER
TR-TW TERMINALS
LOCATED ON OPPOSITE
SIDE OF CONTROL
L1
L2
LIMIT
Figure 9 – 7505P (for replacement of R7184P)
Interrupted ignition, valve-on and motor-
off delays
►
SAFETY AND
OPERATING
LIMITS
LIMIT
L1
L2 (VLV)
VALVE
L2
MOTOR
L2 (MTR)
L2 (IGN)
IGNITER
CAD
CELL
MOTOR
IGNITER
W
R
80
70 60
50
50
70
80
60
OIL VALVE
CAD CELL
THERMOSTAT
TR
TW
TR-TW
JUMPER
TR-TW TERMINALS
LOCATED ON OPPOSITE
SIDE OF CONTROL
L1
L2
Figure 8 – 7505B (for replacement of R7184B)
Interrupted ignition, valve-on delay only
(no motor-off delay)
►
SAFETY AND
OPERATING
LIMITS
LIMIT
L1
L2 (VLV)
VALVE
L2
MOTOR
L2 (MTR)
L2 (IGN)
IGNITER
CAD
CELL
MOTOR
IGNITER
W
R
80 70 60
50
50
70
80
60
OIL VALVE
CAD CELL
THERMOSTAT
TR
TW
TR-TW
JUMPER
TR-TW TERMINALS
LOCATED ON OPPOSITE
SIDE OF CONTROL
L1
L2
LIMIT
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.
TR-TW Terminals
Located on
opposite side of
Control
(If applicable)
TR-TW Terminals
Located on
opposite side of
Control
(If applicable)
TR-TW Terminals
Located on
opposite side of
Control
(If applicable)
TR-TW Terminals
Located on
opposite side of
Control
(If applicable)