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15
WIRING DIAGRAM
S50
7
Y
Y/G
BR
9
2
Neutral
4˚ Speed
3˚ Speed
2˚ Speed
1˚ Speed
R
R
R
R
R
GY
GY
GY
GY
BUBU
BU
BK
BK
W
W
W
BK
R
R
BR
BR
BR
BR
BR
BU
R
GY
BK
BK
GY GY
R
R
W
W
BR BR
BR
BR
GY
GY
GY
GY
GY
R
BU
BK
W
Y/G
G
LN
SEL0015061
NOTE: Wiring diagram is drawn
with plenum in down position.
Com
Com
Com
ComCom
N.C.
N.C.
N.C.
N.O.
N.O.N.O.
N.O.
N.O.
N.C.
N.C.
1
8
5
43
6
1
1
1
1
2
3
4
5
6
7
8
9
10
11
12
1
23
Motor Specifications
Power supply 120 VAC
Frequency
60 Hz
Wattage rating
420 W
Amperage 3.7 A
Motor Resistance
BU/W 21.6 Ohms
BU/R 18 Ohms
BU/GY 14.3 Ohms
BU/BK 9.8 Ohms
Component Layout
Num.
Description
6
1
2
3
4
5
7
8
9
Filter microswitch
Filter microswitch
Plenum down limit switch
Plenum up limit switch
Motor microswitch
Plenum drive motor
Blower motor
Blower speed switches
Start sw. - plenum up/down
Blower Switch Operation
Contact
Function
1 - 3
OFF
3 - 5
1st Speed
5 - 7
2nd Speed
3rd Speed
8 - 10
10 - 12
4th Speed