5126744-UIM-D-1015
Johnson Controls Unitary Products
21
FIGURE 13:
Ladder Wiring Diagram - 3.5 to 5 Ton Models
1. ALL FIELD WIRING TO BE ACCOMPLISHED FOLLOWING CITY, LOCAL AND/OR
NATIONAL CODES IN EFFECT AT THE TIME OF INSTALLATION OF THE UNIT.
2. CAUTION : LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING
CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS
OPERATION. IF ANY OF THE WIRING, AS SUPPLIED WITH THE UNIT, MUST
BE REMOVED, IT MUST BE REPLACED WITH TYPE 105 C. 600 VOLT
WIRE OR EQUIVALENT CLEARLY RENUMBERED FOR IDENTIFICATION.
VERIFY PROPER OPERATION AFTER SERVICING.
3. FACTORY WIRED FOR 230 VOLT SUPPLY POWER. FOR 208 VOLT, MOVE
BLACK WIRES FROM THE 230 TO THE 208 VOLT TAP ON THE TRANSFORMER.
4. MOTORS ARE INHERENTLY PROTECTED.
5. SEE UNIT NAMEPLATE FOR MAXIMUM FUSE AND/OR CIRCUIT BREAKER SIZE
AND MINIMUM CIRCUIT AMPACITY.
6. BLOWER MOTOR SPEED CONNECTIONS SHOWN ARE TYPICAL, BUT
MAY VARY BY MODEL AND APPLICATION. SEE INSTALLATION MANUAL
FOR PROPER SPEED TAP INFORMATION FOR EACH APPLICATION TO OBTAIN
APPROX. 400 CFM/TON IN COOLING.
NOTES:
COM
PRI
24V SEC
40 VA
208V
230V
L2
COMPRES
R
C
S
BLOWER
MOTOR
L
N
G
HI PRESSURE
SWITCH
CONTACTOR
COIL
F
H
C
DUAL
CAPACITOR
T1
L1
L2
T2
BLK
RED
BRN
RED
OD FAN
MOTOR
R
C
S
BLK/WHT
RED
GROUND
LUG
BRN/WHT
PUR
BLK
PUR
BLU
RED
BLK
XFMR
LINE VOLTAGE
FIELD INSTALLED POWER
LOW VOLTAGE
FIELD INSTALLED CONTROL
BLU
3A FUSE
YEL
YEL
BLOWER
MOTOR
5
3
C
1
4
2
GRN
WHT
BRN
WHT
BLU
BLU
W1
R
G
C
THERMOSTAT
Y
W2
BLU
LOW
VOLTAGE
BOX
L1
CRANKCASE
HEATER
GRN
BLK
BLK
TEMPERATURE
SWITCH
BLK
OPTIONAL CRANKCASE HEATER WIRING
FEMALE CONNECTOR
FOR 6HK HEATER KIT
FOR WIRING WITH ELECTRIC
HEATERS SEE SCHEMATIC ON
HEATER ACCESSORY.
WIRING DIAGRAM FOR
HEATER KITS:
6HK*6501306
6HK*6501506
L2
L1
L2
L1
HE1
HE2
LS
LS
HE3
LS
FL
FL
FL
SEQ2
SEQ1
RED/WHT
EQUIPMENT
GROUND
BLK
RED
YEL
BLK
RED
BLK
BRN
WHT
BLU
PRP
BLU
YEL
BLU
RLY
BLU
BLU
BLU
YEL
BLU
YEL
BRN
3
1
5
4
H
H
3
1
5
4
H
H
SEE HEATER WIRING DIAGRAM FOR ALTERNATE
HEATER ACCESSORY KITS.
OPTIONAL ELECTRIC
HEATER ACCESSORY
1
2
3
4
5
6
1
2
3
4
5
6
WITH SCROLL COMPRESSOR
208/230-1-60
LADDER WIRING DIAGRAM
COOLING UNIT WITH OR
WITHOUT ELECTRIC HEAT
CAUTION - OPEN ALL DISCONNECTS
BEFORE SERVICING THIS UNIT