Lennox International Inc G24-200 G24−200 FIELD WIRING DIAGRAM 120V SINGLE PH 60HZ, box right side

G24−200 FIELD WIRING DIAGRAM (120V SINGLE PH 60HZ)

FUSED OR CIRCUIT BREAKER

DISCONNECT

(Furnished by

COMBUSTION

PRIMARY

COMBUSTION

PRIMARY

PRESSURE

installer)

PRESSURE

L1 N

GND

AIR BLOWER

LIMIT

AIR BLOWER

LIMIT

SWITCH

SWITCH

GAS

IGNITION

GAS

IGNITION

CONTROL

CONTROL

VALVE

VALVE

BOARD

BOARD

FLAME ROLLOUT

(Alternate make-up

SWITCH

DOOR

DOOR

box right side)

INTERLOCK

INTERLOCK

BLOWER DECK

RED L1

1

2

3

4 J84

RED

L1

RED L3

RED

PLUG

L3

RED

BLUE

MAKE-UP BOX

MAKE−UP BOX

(Alternate make-up

RED

T13 TRANSFORMER

box left side)

REMOVE FACTORY-

See Note 3

T3 TRANSFORMER

INSTALLED JUMPER IN

WHITE

See Note 3

RED

TWO-STAGE MODE

R3

THERMOSTAT

TERMINAL STRIP

BLACK

BLACK

See Note 2

TB34

RED

WHITE

C

C

See Note 1

1

W1

W1

5

1

G

RELAY

2

G

K109

7

2

GROUND

BLUE

W2

LUG

W2

BLACK

YELLOW

Y1

Y1

YELLOW

RELAY

BLUE

WHITE

L1

L2 L3

Y2

Y2

7

K105

BLUE

R

R

RELAY

T1

T2 T3

K13

4

ECONOMIZER

K3 CONTACTOR

ECON

CONTROL BOX

T1 TRANSFORMER

TB1 TERMINAL STRIP

24v: blue − yellow

120v: black − white

BLOWER MOTOR

NOTES :

1 − Relay K109 can be used for an accessory rated at the same voltage as power supply.

2 − Field installed and supplied resistor (R3), is required in two-stage applications when using electro-mechanical thermo-

stat. (Use a 150 ohm, 10 watt resistor − Lennox part number P−8−6256.)

3 − The T3 and T13 transformers (54G5201) are marked as follows: 230v between white and black leads and 460v between

white and red leads. However, in this application, each transformer has been used to supply 230v (available between the

white and red leads) to an induce draft blower when 115v is applied between the white and black leads of each transformer.

FIELD-INSTALLED DRIVE KIT COMPONENT

FACTORY INSTALLED

LINE VOLTAGE FIELD INSTALLED

24 VOLTS FIELD INSTALLED

FIGURE 15

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