-
L2 HOT
L1 HOT
BLACK
BLACK
INPUT VOLTAGE
DISCONNECT
SWITCH
( OPTIONAL )
B
R
AQUASTAT
FAN CONTROL
( OPTIONAL )
RETURN AIR
FAN CONTROL
( OPTIONAL )
WALL
THERMOSTAT
( OPTIONAL )
YEL
R
B
BLACK
BLACK
RED
RED
WHITE
YELLOW
WHITE
YELLOW
BLUE
BLUE
*BROWN TERMINATED
IF NO DAMPER MOTOR
( OPTIONAL )
*BROWN
BLAC
K
BLUE
RED
DAMPER
MOTOR
3-SPEED SWITCH
CONTROL PACKAGE
( OPTIONAL )
H
L
M
BLOWER
MOTOR
MOTOR QUICK
CONNECT
( OPTIONAL )
HEATER
L1
T1
L2
T2
MANUAL MOTOR
STARTER
( OPTIONAL )
TRANSFORMER
L2
M2
FREEZESTAT
( OPTIONAL )
BLACK
BLACK
BLACK
WHITE
SEE CHAR
T
SEE CHAR
T
SEE CHAR
T
PSC MOTOR
( OPTION )
YELLOW
FACTORY WIRED 16AWG
WIRE TERMINATION
FACTORY WIRE -
NOT CONNECTED
WIRE CONNECTION
FIELD WIRED
FACTORY WIRED 18AWG
FACTORY WIRED 12AWG
Blower motor wiring chart
Size
Motor Sizes
High
Medium
Low
02
12W
Black
Blue
Red
03
12W
Black
Red
Yellow
04
30W
Black
Blue
Red
06
50W
Black
Red
Yellow
08
50W, 25W
Black
Red
Yellow
10
(2) 50W
Black
Yellow
Gray
12
(2) 50W
Black
Red
Yellow
Notes:
Complete the wiring in accordance with national and local codes.
Wiring diagram is for typical application. If other controls are specified
wiring may differ from what is shown.
Models RC, RRC, RFRC units get 3 speed switches shipped loose for field
wiring.
Transformers and fuses are sized specific to CUH unit sizes.
Wire transformer primary according to input voltage (208V/240V/277V) wire
transformer secondary for 120VAC.
Notes:
For high static motors use the following 3 speed switch wiring configuration:
red / low - blue / med - black / high
Wiring schematics
208V / 240V / 277V
21