Carrier 38CM Wiring Diagrams

CH (NOTE #9)
RED or BLK
208/230 10
POWER
SUPPLY
(SEE NOTE #14)
BLU
BLU
BLU
L1
11
EQUIP
GND
Y
G
R
INDOOR
THERMOSTAT
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4
PC 101 Catalog No. 533-869
Tab 3a 2a
Wiring Diagrams
CONNECTION DIAGRAM
RED or BLK
COMP
BLU
S
H
BLK
L1 C
11 21
L2 C
R
YEL
23 23
YEL
F
EQUIP
CONT OFM
BRN
GND
BLK
YEL
BLU
BLK
VIO
HPS DTS LPS
BLU BLK BLK YEL YEL
LLS
BLK BLK
IFR
Y G R
INDOOR
THERMOSTAT
(NOTE #5)
SCHEMATIC DIAGRAM
CH
(LADDER FORM)
R
CONT
C
21
S
2
5
SC
1
H
SR
OFM
C
F
CAP
(SEE NOTE #14)
HPS DTS LPS
T1
LLS
IFR
R C
EXTERNAL
POWER
SUPPLY 24 V
Fig. 1—38CM018-048 208-230v, 1 Phase, 60 Hertz
Printed in U.S.A.
BLK
BLU
BLU
CAP
YEL
ST
YEL BRN
1 2
SC
5
(NOTE #8)
SR CONT
CAP
CH
COMP
BRN
CTD
DTS
HPS
IFR
T2 LLS
LOGIC LPS
T3
T1
OFM
CTD
SC
SR
BRN
ST
C
R
EXTERNAL
POWER
SUPPLY
24 V
(NOTES #3 & #6)
INDOOR
BLOWER
MOTOR
NOTES:
L2
1. SYMBOLS ARE ELECTRICAL
REPRESENTATIONS ONLY.
2. COMPRESSOR AND FAN MOTOR FURNISHED
WITH INHERENT THERMAL PROTECTION.
COMP
3. TO BE WIRED IN ACCORDANCE WITH
NATIONAL ELECTRIC N.E.C. CODE AND
ST
LOCAL CODES.
4. N.E.C. CLASS 2, 24 V CIRCUIT, MIN. 40 VA
REQUIRED, 60 VA ON UNITS INSTALLED
CONT
WITH LLS.
5. USE COPPER CONDUCTORS ONLY.
23 23
6. CONNECTION FOR TYPICAL COOLING ONLY
THERMOSTAT. FOR OTHER ARRANGEMENTS,
SEE INSTALLATION INSTRUCTIONS.
7. IF INDOOR SECTION HAS A TRANSFORMER
WITH A GROUNDED SECONDARY, CONNECT
THE GROUNDED SIDE TO THE BRN LEAD.
8. WHEN START RELAY AND START
CTD
CONT
CAPACITOR ARE INSTALLED, START
THERMISTOR IS NOT USED.
T2
9. CH NOT USED ON ALL UNITS.
10.IF ANY OF THE ORIGINAL WIRE, AS
LOGIC
SUPPLIED, MUST BE REPLACED, USE THE
T3
SAME OR EQUIVALENT WIRE.
11.CHECK ALL ELECTRICAL CONNECTIONS
INSIDE CONTROL BOX FOR TIGHTNESS.
12.DO NOT ATTEMPT TO OPERATE UNIT UNTIL
SERVICE VALVES HAVE BEEN OPENED.
13.DO NOT RAPID CYCLE COMPRESSOR.
COMPRESSOR MUST BE OFF 3 MINUTES TO
ALLOW PRESSURES TO EQUALIZE
BETWEEN HIGH AND LOW SIDE BEFORE
STARTING.
14.WIRE NOT PRESENT IF HPS, LPS, DTS OR
CTD ARE USED.
317738 - 401 REV. B
Form 38CM-2W
018-060 Series 0, 1
208-230-1-60
- LEGEND -
FACTORY POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
FIELD POWER WIRING
COMPONENT CONNECTION
FIELD SPLICE
JUNCTION
CONTACTOR
CAPACITOR (DUAL RUN)
CRANKCASE HEATER
COMPRESSOR
COMPRESSOR TIME DELAY
DISCHARGE TEMP. SWITCH
HIGH PRESSURE SWITCH
INDOOR FAN RELAY
LIQ. LINE SOLENOID VALVE
LOW PRESSURE SWITCH
OUTDOOR FAN MOTOR
START CAPACITOR
START RELAY
START THERMISTOR
MAY BE FACTORY OR FIELD
INSTALLED
Pg 1 10-94
38CM
A93410
Replaces: New