Carrier 38CKC 018, 024, 030, 036, 042, 048, 060, 030, 036, 042, 048, 060, 38CKQ 024, 030, 036, 042, 048, 024, 030, 036, 042, 048 Air Conditioner Instruction manual

38CKC018–060
38CKQ024–048
60 Hertz
Visit www.carrier.com
Wiring Diagrams
SCHEMATIC DIAGRAM (LADDER FORM)
CONNECTION DIAGRAM
(NOTE #9)
*CH
BLK
or
RED
COMP
BLU
CONT
S
BLK C
H
11 21
R
C
YEL
23 23
YEL
F
OFM
BRN
BLK
RED or BLK
L1
208/230 1Ø
POWER
SUPPLY
L2
EQUIP
GND
BRN
(NOTE #14)
BLU
BLU
BLU
CAP
YEL
*ST
BRN
1
YEL
*SC
(NOTE #8)
BLK
BLU
BLK
YEL
11
2
*ST
+t
*SC
1
H
CONT
OFM
C
F
23
23
CAP
CONT
*HPS
*LPS
*DTS
T2
LOGIC
LOGIC
T1
T3
T1
T3
* CTD
*LLS
BRN
Y
IFR
BLK
BLK
C
R
G
S
2
(NOTE #14)
*LLS
Y
5
*SR
* CTD
BLU
BLU
L2
21
5
*SR
T2
YEL
COMP
R
C
EQUIP
GND
YEL
BLK
*LPS
*DTS
*CH
CONT
+t
VIO
*HPS
BLU
L1
BLK
EXTERNAL
POWER
SUPPLY
24 V
(NOTE #3)
G
R
C
R
INDOOR
THERMOSTAT
EXTERNAL POWER SUPPLY 24 V
R
INDOOR BLOWER MOTOR
INDOOR THERMOSTAT
(NOTE #6)
-LEGENDFACTORY POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
FIELD POWER WIRING
COMPONENT CONNECTION
FIELD SPLICE
JUNCTION
CONT
CONTACTOR
CAP
CAPACITOR (DUAL RUN)
-NOTES-
CAUTION
1. Symbols are electrical representation only.
2. Compressor and fan motor furnished with inherent 1. Compressor damage may occur if system is over
thermal protection.
*CH
CRANKCASE HEATER
charged.
3. To be wired in accordance with National Electric
2. This unit is factory charged with R-22 in
N.E.C. and local codes.
COMP
COMPRESSOR
accordance with the amount shown on the rating
4. N.E.C. class 2, 24 V circuit, min. 40 VA required,
*CTD
COMPRESSOR TIME DELAY
60 VA on units installed with LLS.
plate. The charge is adequate for most systems
5. Use copper conductors only. Use conductors
*DTS
DISCHARGE TEMP. SWITCH
using matched coils and tubing not over 15 feet
suitable for at least 75°C (167°F).
long. The best performance will be achieved when
6. Connection for typical cooling only thermostat.
*HPS
HIGH PRESSURE SWITCH
For other arrangements see installation instructions.
the unit operates with a suction gas superheat at
7. If indoor section has a transformer with a
IFR
INDOOR FAN RELAY
the compressor inlet of 5 °F at normal rating
grounded secondary, connect the grounded side
conditions of the air conditioning and
*LLS
LIQ. LINE SOLENOID VALVE
to the BRN lead.
8. When start relay and start capacitor are installed,
refrigeration institute (ARI). This chart may be
*LPS
LOW PRESSURE SWITCH
start thermistor is not used.
used to approximate the charge if ARI rating
9. CH not used on all units.
OFM
OUTDOOR FAN MOTOR
conditions cannot be obtained. ARI rating
10. If any of the original wire, as supplied, must be
replaced,
use
the
same
or
equivalent
wire.
conditions are equivalent to DOE test "A"
*SC
START CAPACITOR
11. Check all electrical connections inside control
conditions. See product data literature for required
*SR
START RELAY
box for tightness.
indoor air flow rates and for use of line lengths
12. Do not attempt to operate unit until service valves
*ST
START THERMISTOR
over 15 Ft.
have been opened.
13. Do not rapid cycle compressor. Compressor must
3. Carefully relieve refrigerant pressure within this
be off 3 minutes to allow pressures to equalize
unit before final disposal.
between high and low side before starting.
* MAY BE FACTORY OR FIELD INSTALLED.
14. Wire not present if HPS, LPS, DTS or CTD are
used.
317738-401 REV. E
CAP
CAPACITOR (DUAL RUN)
A97148
Fig. 1—38CKC018, 024, 030, 036, 042, 048 and 38CKQ024, 030, 036, 042, 048
208-230v, 1 Phase, 60 Hertz
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. 563-876
Printed in U.S.A.
Form 38CKC-2W
Pg 1
4-98
Replaces: 38CKC-1W
Tab 2a 3a
CONNECTION DIAGRAM
*CH (NOTE #9)
RED or BLK
-LEGEND-
BLK
BLU
FACTORY POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
C
FIELD POWER WIRING
11 21
YEL
BRN
1 2
YEL R
13 23
COMPONENT CONNECTION
*SC
F
5
YEL
(NOTE #8)
FIELD SPLICE
*SR
OFM
EQUIP
CONT
BRN
JUNCTION
GND
BLK
CONT CONTACTOR
CAP CAPACITOR (DUAL RUN)
BLU
BRN
(NOTE #14)
*CH
CRANKCASE HEATER
BLK
VIO
COMP COMPRESSOR
YEL
*CTD COMPRESSOR TIME DELAY
*DTS
*HPS
*LPS
T2
*DTS DISCHARGE TEMP. SWITCH
BLK YEL
BLU
BLU BLK
LOGIC
YEL
*HPS HIGH PRESSURE SWITCH
T3
T1
IFR
INDOOR FAN RELAY
*CTD
BRN
*LLS LIQ. LINE SOLENOID VALVE
*LLS
*LPS LOW PRESSURE SWITCH
BLU
BLK
BLK
EXTERNAL POWER OFM OUTDOOR FAN MOTOR
C
BLU
SUPPLY 24V
R
*SC
START CAPACITOR
(NOTES #3 & #6)
IFR
*SR
START RELAY
*ST
START THERMISTOR
* MAY BE FACTORY OR FIELD
Y G R
INSTALLED.
CAP
+t°
YEL
*ST
INDOOR BLOWER MOTOR
INDOOR THERMOSTAT (NOTE #5)
SCHEMATIC DIAGRAM
*CH
L1
BLU
COMP BLU
S
H
BLK C
RED or BLK
L1
208/230 1Ø L2
POWER
SUPPLY
L2
(LADDER FORM)
C
CONT
21
11
5
EQUIP
GND
R
COMP
S
2
1
*SR
*ST
+t°
*SC
OFM
H
C
F
CONT
CAP
23
13
(NOTE #14)
*CTD
*HPS
*DTS
*LPS
CONT
T2
LOGIC
T1
T3
*LLS
Y
G
R
INDOOR THERMOSTAT
IFR
R C
EXTERNAL POWER SUPPLY 24 V
-NOTES-
1. Symbols are electrical representation only.
2. Compressor and fan motor furnished with inherent thermal
protection.
3. To be wired in accordance with National Electric N.E.C.
and local codes.
4. N.E.C. class 2, 24 V circuit, min. 40 VA required, 60 VA on
units installed with LLS.
5. Use copper conductors only.
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 capacitor are installed, start
thermistor is not used.
9. CH not used on all units.
10.If any of the original wire, as supplied, must be replaced,
use the 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.
15.Use conductors suitable for at least 75°C (167°F).
CAUTION
1. Compressor damage may occur if system is over charged.
2. This unit is factory charged with R-22 in accordance with the amount shown on the rating plate. The charge is adequate for most
systems using matched coils and tubing not over 15 feet long. The best performance will be achieved when the unit operates with a
suction gas superheat at the compressor inlet of 5 °F. at normal rating conditions of the Air Conditioning and Refrigeration Institute
(ARI). This chart may be to approximate the charge if ARI rating conditions cannot be obtained. ARI rating conditions are equivalent
to DOE test "A" conditions. See product data literature for required indoor air flow rates and for use of line lengths over 15 ft.
3. Carefully relieve refrigerant pressure within this unit before final disposal.
321939-101 REV. D
A97151
Fig. 2—38CKC060 208-230v, 1 Phase, 60 Hertz
2
CONNECTION DIAGRAM
COMP
BLU
CONT
L1
11
L3
13
21
T2
EQUIP
GND
T3
YEL
23
EQUIP GND
CONT
COMP
T1
BLK
L2
L1
RED or BLK
RED or BLK
L2
208/230 3Ø
POWER
SUPPLY
SCHEMATIC DIAGRAM (LADDER FORM)
*CH (NOTE #8)
11
CAP
21
*CH
T3
CAP
YEL
OFM
L3
T2
T1
CONT
13
23
OFM
BRN
BLK
ALERT !
SEE NOTE #11
YEL
BRN
BLK
VIO
*HPS
*LPS
BLU
BLU
YEL
CONT
T2
YEL
LOGIC
T1
CTD
*LLS
BRN
*LLS
BLK
C
R
IFR
G
R
INDOOR
THERMOSTAT
R
INDOOR THERMOSTAT
(NOTE #5)
CAP
EXTERNAL POWER SUPPLY 24 V
INDOOR BLOWER MOTOR
-NOTES-
-LEGEND-
1. Symbols are electrical representation only.
2. Compressor and fan motor furnished with inherent
thermal protection.
3.
To be wired in accordance with National Electric
FACTORY CONTROL WIRING COMP
COMPRESSOR
N.E.C. and local codes.
4. N.E.C. class 2, 24 V circuit, min. 40 VA required,
FIELD CONTROL WIRING
*CTD
COMPRESSOR TIME DELAY
60 VA on units installed with LLS.
5. Use copper conductors only. Use conductors suitable
for at least 75°C (167°F).
FIELD POWER WIRING
IDF
INDOOR FAN
6. Connection for typical cooling only thermostat, for
other arrangements see installation instructions.
COMPONENT CONNECTION
*HPS
HIGH PRESSURE SWITCH
7. If indoor section has a transformer with a grounded
secondary, connect the grounded side to the BRN lead.
FIELD SPLICE
8. If any of the original wire, as supplied must be
IFR
INDOOR FAN RELAY
replaced, use the same or equivalent wire.
JUNCTION
*LLS
LIQ. LINE SOLENOID VALVE 9. Check all electrical connections inside control box
for tightness.
10. Do not attempt to operate unit until service valves
*LPS
LOW PRESSURE SWITCH
CONTACTOR
have been opened.
11. Do not rapid cycle compressor. Compressor must be
off 3 minutes to allow pressures to equalize between
OFM
OUTDOOR FAN MOTOR
CAPACITOR (DUAL RUN)
high and low side before starting.
12. It is imperative to connect 3Ø field power to unit with correct
* MAY BE FACTORY OR FIELD INSTALLED.
phasing. wrong phasing will cause reverse rotation of scroll
compressor which will result in reduced current draw,
elevated noise level and improper operation. If rotation is
reversed, simply interchange any two of the three power
connections on field side.
FACTORY POWER WIRING
C
R
(NOTES #3 & #6)
G
T3
CTD
Y
EXTERNAL
POWER
SUPPLY
24 V
BLK
IFR
CONT
T2
T3
T1
BLU
Y
*LPS
*HPS
LOGIC
*CH
CRANKCASE HEATER
CAUTION
1. Compressor damage may occur if system is over
charged.
2. This unit is factory charged with R-22 in
accordance with the amount shown on the rating
plate. The charge is adequate for most systems
using matched coils and tubing not over 15 feet
long. The best performance will be achieved when
the unit operates with a suction gas superheat at
the compressor inlet of 5 °F at normal rating
conditions of the air conditioning and
refrigeration institute (ARI). This chart may be
used to approximate the charge if ARI rating
conditions cannot be obtained. ARI rating
conditions are equivalent to DOE test "A"
conditions. See product data literature for required
indoor air flow rates and for use of line lengths
over 15 Ft.
3. Carefully relieve refrigerant pressure within this
unit before final disposal.
319390-401 REV.E
A97149
Fig. 3—38CKC030, 036, 042, 048, 060
208/230v and 460v, 3 Phase, 60 Hertz
3
SERVICE TRAINING
Packaged Service Training programs are an excellent way to increase your
knowledge of the equipment discussed in this manual, including:
• Unit Familiarization
• Maintenance
• Installation Overview
• Operating Sequence
A large selection of product, theory, and skills programs is available, using popular
video-based formats and materials. All include video and/or slides, plus companion
book.
Classroom Service Training plus "hands-on" the products in our labs can mean
increased confidence that really pays dividends in faster troubleshooting, fewer
callbacks. Course descriptions and schedules are in our catalog.
CALL FOR FREE CATALOG 1-800-962-9212
[ ] Packaged Service Training
[ ] Classroom Service Training
A94328
Copyright 1998 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231
38ckc2w
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. 563-876
Printed in U.S.A.
Form 38CKC-2W
Pg 4
4-98
Replaces: 38CKC-1W
Tab 2a 3a