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5126744-UIM-D-1015
Johnson Controls Unitary Products
19
FIGURE 11:
Ladder Wiring Diagram - 2 to 3 Ton Models
COM
PRI
24V SEC
75 VA
208V
230V
L2
COMPRES
R
C
S
BLOWER
MOTOR
L
N
G
F
H
C
DUAL
CAPACITOR
T1
L2
T2
BLK
RED
BRN
RED 7
OD FAN
MOTOR
R
C
S
BLK/WHT 12
RED 9
BRN/WHT 13
BLK 5
PUR 2
BLK 6
PUR 1
XFMR
GROUND
LUG
Y1
R
G
C
THERMOSTAT
LOW
VOLTAGE
BOX
W1
BLU 27
BRN 28
WHT 26
1
2
3
4
5
6
FEMALE CONNECTOR
FOR 6HK HEATER KIT
W2
WHT 25
BLU 29
FOR WIRING WITH ELECTRIC
HEATERS SEE SCHEMATIC ON
HEATER ACCESSORY.
GRN
BLOWER
MOTOR
5
3
C
1
4
2
3A
FUSE
GRN
YEL 18
GRN 24
RED 30
YEL 20
BLU 23
START CAP
1
2
5
START RELAY
RED
BLK/WHT 11
YEL 18
BRN 15
RED 33
HI PRESS
CONTACTOR
COIL
YEL 18
YEL 19
NOTES:
L1
L1
CRANKCASE
HEATER
GRN
BLK
BLK
TEMPERATURE
SWITCH
BLK
OPTIONAL CRANKCASE HEATER WIRING
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. 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 MOTOR SPEED INFORMATION FOR EACH APPLICATION TO
OBTAIN APPROX. 400 CFM/TON IN COOLING.
WITH RECIPROCATING COMPRESSOR
208/230-1-60
LADDER WIRING DIAGRAM
COOLING UNIT WITH OR
WITHOUT ELECTRIC HEAT
CAUTION - OPEN ALL DISCONNECTS
BEFORE SERVICING THIS UNIT