Whirlpool WMB, Installation Instructions Manual

6

Wiring Diagram—Blower (PSC Motor)

Wiring Diagram—Optional Electric Heat

1

2

3

4

5

6

18 BK

24

18 R

18 BU

C

TR

COM

208V

240V

14 Y 

L2

14 BK L1

24V

(H)

(H)

5

3

1

2

TD  **

14 R

18 B

U

18 G

W1

W2

C

G

R

W

BK

BU

G

R

To

Ther

mostat

b

y

 Others

14 R (LO)

14 BK (HI)

14 Y (COM)

++

14 BU (MED)

Y

BU

BK

R

GND

BR / W

BR CAP

++

2

3

1

4

+

MTR

Wiring Diagram - No Heat

Wire Nuts

by Others

L1

L2 or

Neutral

15 Amp

Supply

Voltage

6-Pin

Plug

To

Ground Lug

14 BK

14 Y 

(240V)

14 G

1

2

Models 12, 25, 31 and 49
Will Be Factory Set to Low.

Power (Factory Wired)
Power (Field Wired)
Control (Factory Wired)
Control (Field Wired)

1

2

3

4

5

6

Control Circuit Wiring to 
be 24 Volt, N.E.C. Class 2
Plug Pin

Location

Amp 350781 - 1
6-Pin Cap

** TD = Time Delay (Optional)
    TR = Transformer
BWR = Blower Relay
 MTR = Blower Motor
 CAP = Motor Capacitor
GND = Ground Connection

BK: Black

W: White

  R: Red

G: Green

BU: Blue

 Y: Yellow

BWR

3

6

4

1

5

2

18 BK
12 BK

12 BK

12 BK

12 BK

12 BK

12 BK

12 BK
12 BK

12 Y

12 Y

LS3

LS4

12 Y
12 Y

SEQ2

2nd Stage

1st Stage

LS1

LS2

SEQ1

CB2

L1B

L2B

L2A

L1A

GND

*CB1

GND

14 BK

14 Y

14 G

14 R

18 B

U

220

208 / 240

Voltage

by Others

18 B

U

5

5

4

4

3

3

1

1

HE4

5

4

3

1

2

6

18 W

To Blower

Ground Lug

HE3

HE2

HE1

6-Pin Plug

Heaters Used:
           5 KW = HE1
7.5 & 10 KW = HE1 & HE2
         15 KW = HE1, HE2 & HE3
         20 KW = HE1, HE2, HE3 & HE4

* TB = Terminal Block (Optional)
* CB = Circuit Breaker (Optional)
SEQ = Sequencer
GND = Ground Lug
   LS =  Limit Switch
   HE = Heater Element

Power (Factory Wired)
Power (Field Wired)
Control (Factory Wired)
Control (Field Wired)