8 WIRING DIAGRAMS cont .

Typical Lennox Heat Pumps (also see other Lennox diagrams)

THERMOSTAT TERMINAL BLOCK

R

Y1

Y2

W2

E

G

O

B

L

C

 

R

 

Y

PCB

W1

E

PUMP

G

HEAT

O

 

 

L

 

C

Typical Lennox HP19, HP20 Heat Pumps

THERMOSTAT TERMINAL BLOCK

R Y1 Y2 W2 E G O B L C

V-VR

 

M

PCB

Y

E

PUMP

F

HEAT

R

 

 

X

Typical Lennox HP21 Heat Pump

THERMOSTAT TERMINAL BLOCK

R Y1 Y2 W2 E G O B L C

R-VR

 

Y1

PCB

W1

E

PUMP

F

HEAT

O

 

 

L

 

X

8 WIRING DIAGRAMS cont .

Typical Lennox HP22 Heat Pump

THERMOSTAT TERMINAL BLOCK

 

R

Y1

Y2

W2

E

G

O

B

L

C

 

R-VR

 

 

 

 

 

 

 

 

 

 

M

 

 

 

 

 

 

 

 

 

PCB

Y2

 

 

 

 

 

 

 

 

 

Y

 

 

 

 

 

 

 

 

 

PUMP

 

 

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

 

 

HEAT

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

Typical Trane Heat Pumps

THERMOSTAT TERMINAL BLOCK

R Y1 Y2 W2 E G O B L C

 

R

 

Y

PCB

W

X2

PUMP

G

HEAT

O

 

 

F

 

B

Typical Weathertron Heat Pumps

THERMOSTAT TERMINAL BLOCK

R

Y1

Y2

W2

E

G

O

B

L

C

 

R

User

 

 

 

Y

Supplied

 

 

Jumper

PCB

W-U

 

G

 

PUMP

 

O

 

HEAT

 

B

 

 

 

 

T

CAPPED

 

X2

CAPPED

18

19

Page 10
Image 10
Bryant 5200 owner manual Wiring Diagrams, Typical Lennox Heat Pumps also see other Lennox diagrams