Installation Instructions
38CKM --- 50 Hz
Split Syst em A ir Co nd itioner
with Puron Refrigerant
1 --- 1 / 2 t o 5 To n s
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury, or property
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The qualified
installer or agency must use factory--authorized kits or accessories
when modifying this product. Refer to the individual instructions
packaged with the kits or accessories when installing.
Follow all local safety codes. Wear safety glasses, protective
clothing, and work gloves. Use quenching cloth for brazing
operations. Have fire extinguisher available. Read these
instructions thoroughly and follow all warnings or cautions
included in literature and attached to the unit. Consult local
building codes and current editions of the National Electrical Code
( NEC ) and NFPA 70.
Recognize safety information. This is the safety --alert symbol
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury. Understand
these signal words; DANGER, WARNING, and CAUTION. These
words are used with the safety-- alert symbol. DANGER identifies
the most serious hazards which will result in severe personal injury
or death. WARNING signifies hazards which could result in
personal injury or death. CAUTION is used to identify unsafe
practices which would result in minor personal injury or product
and property damage. NOTE is used to highlight suggestions
which will result in enhanced installation, reliability, or operation.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Before installing, modifying, or servicing system, main
electrical disconnect switch must be in the OFF position.
There may be more than 1 disconnect switch. Lock out and
tag switch with a suitable warning label.
!
WARNING
!
WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could result in personal injury
or equipment damage.
R--410A refrigerant systems operate at higher pressures than
standard R --22 systems. Do not use R--22 service equipment
or components on R --410A refrigerant equipment.
INSTALLATION RECOMMENDATIONS
NOTE: In some cases noise in the living area has been traced to
gas pulsations from improper installation of equipment.
1. Locate unit away from windows, patios, decks, and so forth,
where unit operation sound may disturb customer.
2. Insure that vapor-- and liquid--tube diameters are appropriate
to capacity of unit.
3. Run refrigerant tubes as directly as possible by avoiding un-
necessary turns and bends.
4. Leave some slack between structure and unit to absorb vi-
bration.
5. When passing refrigerant tubes through the wall, seal open-
ing with RTV or other pliable silicon--based caulk. (See Fig.
1.)
6. Avoid direct tubing contact with water pipes, duct work,
floor joists, wall studs, floors, and walls.
7. Do not suspend refrigerant tubing from joists and studs with
a rigid wire or strap that comes in direct contact with tubing.
(See Fig. 1.)
8. Ensure that tubing insulation is pliable and completely sur-
rounds vapor tube.
9. When necessary, use hanger straps which are 1 in. wide and
conform to shape of tubing insulation. (See Fig. 1.)
10. Isolate hanger straps from insulation by using metal sleeves
bent to conform to shape of insulation.
INSULATION
SUCTION TUBE
LIQUID TUBE
OUTDOOR WALL INDOOR WALL
LIQUID TUBE
SUCTION TUBE
INSULATION
CAULK
HANGER STRAP
(AROUND SUCTION
TUBE ONLY)
JOIST
1” MIN
THROUGH THE WALL
SUSPENSION
A07588
Fig. 1 --- Connecting Tubing Installation
GENERAL
INSPECT NEW UNIT
File claim with shipping company prior to installation if shipment
is damaged or incomplete. Locate unit rating plate and wiring label
on unit service panel. It contains information needed to properly
install unit. Check rating plate to be sure unit matches job
specifications.
2
LOCATION
Check local codes for regulations concerning zoning, noise,
platforms, and other issues.
Locate unit away from fresh air intakes, vents, or bedroom
windows. Noise may carry into the openings and disturb people
inside.
Locate unit in a well drained area, or support unit high enough so
that water runoff will not enter the unit.
Locate unit away from areas where heat, lint, or exhaust fumes will
be discharged onto unit (as from dryer vents).
Locate unit away from recessed or confined areas where
recirculation of dischar ge air may occur (refer to CLEARANCES
section of this document).
Roof--top installation is acceptable providing the roof will support
the unit and provisions are made for water drainage and
noise/vibration dampening.
NOTE: Roof mounted units exposed to wind may require wind
baffles. Consult the manufacturer for additional information.
INSTALL ON SOLID, LEVEL MOUNTING PAD
If conditions or local codes require the unit be attached to pad,
tie-- down bolts should be used and fastened through knockouts
provided in unit base pan. Refer to unit mounting pattern in Fig. 2
to determine base pan size and knockout hole location.
Arrange supporting members to adequately support unit and
minimize transmission of vibration to building. Consult local codes
governing rooftop applications.
B
C
3/8” D (9.53) Tie down
Knockouts (2) Places
A
Base Pan
Width x Depth
in. (mm)
Base Pan
Width x Depth
in. (mm)
Tie Down
Knockouts in.
(mm)
Minimum
Mounting
Pad
Dimensions
in. (mm)
Base Size
A B C
25---3/4 X 25 ---3/4
(654.0X 654.0)
4 --- 7/
16
(113.
0)
2 1 ---
184
(539.
9)
9 --- 1/
8
(231.
3)
28 X 28
(711 x 711)
Small
31---3/16 X 31 ---3/16
(792.5 X 792.5)
6 --- 9/
16
(166.
1)
2 4 ---
11/1
6
(626.
3)
9--1/
8
(231.
3)
35 X 35
(889 x 889)
Medium
A08073
Fig. 2 --- Tie Down Knockouts
CLEARANCE REQUIREMENTS
When installing, allow sufficient space for airflow clearance,
wiring, refrigerant piping, and service. Allow 24 in. (609.6 mm)
clearance to service end of unit and 48 in. (1219.2 mm) above unit.
For proper airflow, a 6--in. (152.4 mm) clearance on 1 side of unit
and 12--in. (304.8 mm) on all remaining sides must be maintained.
Maintain a distance of 24 in. (609.6 mm) between units or 18 in.
(457.2 mm) if no overhang within 12 ft. (3.66 m) Position so
water, snow, or ice from roof or eaves cannot fall directly on unit.
NOTE: 18 in. (457.2 mm) clearance option described above is
approved for outdoor units with wire grille coil guard.
On rooftop applications, locate unit at least 6 in. (152.4 mm) above
roof surface.
OPERATING AMBIENT
The minimum outdoor operating ambient in cooling mode is 55_F
(12.78_C), and the maximum outdoor operating ambient in
cooling mode is 125.6_F(52_C).
EXPANSION DEVICE
When combined with a Carrier indoor product, a thermostatic
expansion valve (TXV) is required at the indoor section of the
system for proper operation.
FILTER DRIER
A field installed liquid--line filter drier is recommended for this
installation.
Refer to Fig. 3 and install filter drier as follows:
1. Braze 5 in. (127 mm) liquid tube to the indoor coil.
2. Wrap filter drier with damp cloth.
3. Braze filter drier to above 5 in. (127 mm) liquid tube. Flow
arrow must point toward indoor coil.
4. Connect and braze liquid refrigerant tube to the filter drier.
A05227
Fig. 3 --- Liquid Line Filter Drier Installed at indoor Unit
3
MAKE REFRIGERANT TUBING CONNECTIONS
Outdoor units may be connected to indoor section using accessory
tubing package or field supplied refrigerant--grade tubing of correct
size and condition. For tubing requirements beyond 80 ft (24.38
m), consult Residential Split System Long --Line Application
Guideline. Connect tubing to fittings on outdoor unit vapor and
liquid service lines. (See Table 1.)
If refrigerant tubes or the indoor coil are exposed to atmospheric
conditions for longer than 5 minutes they must be evacuated to 500
microns to eliminate contamination and moisture in system.
Table 1—Refrigerant Connections and Recommended Liquid
and Vapor Tube Diameters (in.)
UNIT SIZE
Liquid Rated Vapor*
Connect Di-
ameter
Tube
Diameter
Connect Di-
ameter
Tube
Diameter
018, 024, 030
3/8 3/8
3/4 3/4
036, 042, 048 7/8 7/8
060 7/8 1 --- 1/ 8
* See Product Data sheet for performance data when u sing different size
and l ength linesets.
Notes:
1. Do not apply capillary tube or fixed orifice indoor coils to these units.
2. For Tubing Set lengths between 80 and 200 ft. (24.38 and 60.96 m)
horizontal or 35 ft. (10.7 m) vertical differential 250 ft. (76.2 m) Total
Equivalent Length), refer to the Residential Piping and Longline Guide
line--- Air Conditioners and Heat Pumps using Puron refrigerant.
OUTDOOR UNIT CONNECTED TO FACTORY AP-
PROVED INDOOR UNIT
Outdoor unit contains the majority of system refrigerant charge for
operation with indoor unit of same size when connected by 15 ft to
25 ft. (4.57 m to 7.62 m) of field supplied or factory accessory
tubing. Check refrigerant charge for maximum efficiency per
subcooling chart (Table 3).
SWEAT CONNECTION
UNIT DAMAGE HAZARD
Failure to follow this caution may result in unit component
damage.
Service valves must be wrapped while brazing in a heat
sink material, such as a wet cloth.
CAUTION
!
Use refrigerant grade tubing. Service valves are closed from factory
and ready for brazing. After wrapping service valve with a wet
cloth, tubing set can be brazed to service valve using industry
accepted methods and materials. Consult local code requirements.
Refrigerant tubing and indoor coil are now ready for leak testing.
This check should include all field and factory joints.
MAKE ELECTRICAL CONNECTIONS
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Do not supply power to unit with compressor terminal box
cover removed.
!
WARNING
Be sure field wiring complies with local and national fire, safety,
and electrical codes, and voltage to system is within limits shown
on unit rating plate. Contact local power company for correction of
improper voltage. See unit rating plate for recommended circuit
protection device.
NOTE: Operation of unit on improper line voltage constitutes
abuse and could affect unit reliability. See unit rating plate. Do not
install unit in system where voltage or phase imbalance (3 phase)
may fluctuate above or below permissible limits.
NOTE: Use copper wire only between disconnect switch and unit.
NOTE: Install branch circuit disconnect of adequate size per NEC
to handle unit starting current. Locate disconnect within sight from
and readily accessible from unit, per Section 440--14 of NEC.
ROUTE GROUND AND POWER WIRES
Remove access panel to gain access to unit wiring. Extend wires
from disconnect through power wiring hole provided and into unit
control box.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
The unit cabinet must have an uninterrupted or unbroken
ground. The ground may consist of electrical wire or metal
conduit when installed in accordance with existing electrical
codes.
!
WARNING
CONNECT GROUND AND POWER WIRES
Connect ground wire to ground connection in control box for
safety. Connect power wiring to contactor as shown in Fig. 6
CONTACTOR
L1L1
L3L3
L2/N
L2/N
GROUND
LUG
DISCONNECT PER
IEC AND/OR
LOCAL CODES
FIELD POWER
WIRING
GND
N FOR 1-PHASE ONLY
3-PHASE ONLY
A03226
Fig. 4 --- Line Power Connections
CONNECT CONTROL WIRING
Route 24v control wires through control wiring grommet and
connect leads to control wiring. (See Fig. 6.)
Use No. 18 AWG color coded, insulated (35_C minimum) wire. If
thermostat is located more than 100 ft from unit, as measured along
the control voltage wires, use No. 16 AWG color coded wire to
avoid excessive voltage drop.
Use furnace transformer, fan coil transformer , or accessory
transformer for control power, 24v/40va minimum.
NOTE: Use of available 24v accessories may exceed the
minimum 40va power requirement. Determine total transformer
loading and increase the transformer capacity or split the load with
an accessory transformer as required.
4
A00010
Fig. 5 --- 3 Phase Monitor Control
Table 2—Phase--Monitor LED Indicators
LED STATUS
OFF Nocallforcompressoroperation
FLASHING Reversed phase
ON Normal
UNIT DAMAGE HAZARD
Failure to follow this caution may result in unit damage.
S 3--phase scroll compressors are rotation sensitive.
S A flashing LED on phase monitor indicates reverse
rotation. (See Fig. 5 and Table 2.)
S This will not allow contactor to be energized.
S Disconnect power to unit and interchange 2 field wiring
leads on unit contactor.
CAUTION
!
COMPRESSOR CRANKCASE HEATER
A crankcase heater is required if refrigerant tubing is longer than
80 ft. (24.38 m).
When equipped with a crankcase heater, ener gize heater a
minimum of 24 hours before starting unit. To energize heater only,
set thermostat to OFF mode and close electrical disconnect to
outdoor unit.
INSTALL ELECTRICAL ACCESSORIES
Refer to individual instructions packaged with kits or accessories
when installing.
START--UP
UNIT DAMAGE AND/OR PERSONAL INJURY
HAZARD
Failure to follow this caution may result in personal injury
and/or unit component damage.
Service valve gauge ports are equipped with Schrader
valves. Wear safety glasses and gloves when handling
refrigerant.
CAUTION
!
1. Fully open liquid and vapor service valves.
2. Unit is shipped with valve stem(s) front seated (closed) and
caps installed. Replace stem caps after system is opened to
refrigerant flow. Replace caps finger-- tight and tighten an
additional 1/12 turn with wrench.
3. Close electrical disconnects to energize system.
4. Set room thermostat at desired temperature. Be sure set
point is below indoor ambient temperature.
5. Set room thermostat to COOL and fan control to ON or
AUTO mode. Operate unit for 15 minutes. Check system--
refrigerant charge. (See Check Charge.)
PERSONAL INJURY and ENVIRONMENTAL
HAZARD
Failure to relieve system pressure could result in personal
injury and/or death.
1.Relieve pressure and recover all refrigerant before
servicing existing equipment, and before final unit
disposal. Use all service ports and open all flow-- control
devices, including solenoid valves.
2.Federal regulations require that you do not vent
refrigerant into the atmosphere. Recover during system
repair or final unit disposal.
!
WARNING
SEQUENCE OF OPERATION
Turn on power to indoor and outdoor units. Transformer is
energized.
On a call for cooling, thermostat makes circuits R--Y and R--G.
Three phase models with scroll compressors, are equipped with a
phase monitor to detect if the incoming power is correctly phased
for compressor operation. (See Fig. 5 and Table 2.) If the phasing is
correct, circuit R --Y energizes contactor, starting outdoor fan motor
and compressor circuit. R --G energizes indoor unit blower relay,
starting indoor blower motor on high speed.
NOTE: If the phasing is incorrect, the contactor will not be
energized. To correct the phasing, interchange any two of the three
power connections on the field side.
When thermostat is satisfied, its contacts open, de--ener gizing
contactor and blower relay. Compressor and motors stop.
If indoor unit is equipped with an off delay circuit, the indoor
blower can run an additional 120 sec to increase system efficiency.
CHECK CHARGE
Factory charge amount is shown on unit rating plate.
Cooling Only Procedur
e
NOTE: If superheat or subcooling charging conditions are not
favorable, char ge must be weighed in accordance with unit rating
plate 0.6 oz/ft of 3/8--in. (56g/m of 9.5 mm) liquid line above or
below 15 ft (7.6 m) respectively.
EXAMPLE:
To calculate additional charge required for a 10 m line set:
10 m -- 7.6 m = 2.4 m X 56 g/m = 134.4 g of additional charge
The following procedure is valid when indoor airflow is within
21 percent of its rated CFM:
1. Operate unit a minimum of 10 minutes before checking
charge.
2. Measure discharge pressure by attaching an accurate gage to
liquid valve service port.
3. Measure liquid temperature by attaching an accurate
thermistor type or electronic thermometer to liquid line near
service valve.
4. Subtract liquid / discharge saturation Temperature from
measured liquid temperature for unit subcooling.
5. Measure outdoor air dry bulb temperature with thermome-
ter.
6. Refer to Table 3. Find outdoor temperature and appropriate
subcooling.
5
7. If a unit has lower subcooling than charted subcooling, add
refrigerant until charted subcooling is reached.
8. If unit has a higher subcooling than charted subcooling,
reclaim refrigerant until charted subcooling is reached.
9. When adding refrigerant, charge in liquid form into suction
service port using a flow--restricting device.
10. If outdoor air temperature or pressure at liquid valve
changes, charge to new subcooling indicated on chart.
NOTE: If line length is beyond 80 ft (24.38 m) or greater than 20
ft (6.10 m) vertical separation, See Long Line Guideline for
special charging requirements.
UNIT DAMAGE HAZARD
Failure to follow this caution may result in unit damage.
Compressor damage may occur if system is overchar ged.
CAUTION
!
Table 3—Subcooling Chart
Outdoor Ambient Temperature ºF (ºC)
(24ºC)
75
SUBCOOLING TEMPERATURE º F
CHARGING IN COOLING MODE--38CKM
Liquid Service Valve Subcooling ‐ For Rated Fan Coil Combination
SUBCOOLING TEMPERATURE ºC
(35ºC) (38ºC)
(29ºC)
(32ºC)(27ºC)
(41ºC)
80
85
90
105
95 100
(43ºC)
110
(52ºC)
125
(46ºC)
115
(49ºC)
120
4.4
5.0
5.6
6.2
6.7
7.3
7.8
8.0
9.0
10.0
11.0
12.0
13.0
14.0
6
OUTDOOR
PRODUCT
NUMBER
INDOOR
PRODUCT
NUMBER
Rated
Voltage/ Phase/
Frequency
REFRIGERANT
OPER.
WEIGHT
(kg)
COOLING
CAP ACITY
(Btu/h)
POWER
INPUT (W)
COOLING
CURRENT
INPUT (A)
COOLING
EER
(Btu/h/W)
MAX CUR -
RENT
INPUT (A)
MAX
POWER
INPUT
(W)
Brand Address Line 2 Address Line 3
Frequency
CHARGE
OUTDOOR
VOLTS Ph Hz lb kg TYPE T1 T3 T1 T3 T1 T3 T1 T3
38CKM018---X---7 FB4CSL018L00EAAA 230 1 50 3.73 1.69 R ---410A 54.0 19160 16150 1462 1842 6.9 8.6 13.10 8.77 9.2 2,200 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
38CKM024---X---7 FB4CSL024L00EAAA 230 1 50 4.30 1.95 R ---410A 57.2 22670 20350 1804 2258 8.1 10.5 12.57 9.01 11.4 2,710 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
38CKM030---X---7 FB4CSL030L00EAAA 230 1 50 4.67 2.12 R ---410A 60.8 30790 26800 2376 3034 11.6 14.6 12.96 8.83 14.8 3,540 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
38CKM036---X---7 FB4CSL036L00EAAA 230 1 50 5.53 2.51 R ---410A 64.4 35750 31900 2784 3582 13.3 16.7 12.84 8.91 18.7 4,110 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
38CKM036---X---9 FB4CSL037L00EAAA 400 3 50 5.53 2.51 R ---410A 64.4 35230 31120 2780 3504 4.9 5.8 12.67 8.88 6.4 4,000 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
38CKM042---X---9 FB4CSL042L00EAAA 400 3 50 7.46 3.38 R ---410A 86.6 41000 26500 3208 4016 5.1 6.4 12.78 9.09 7.0 4,600 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
38CKM048---X---9 FB4CSL048L00EAAA 400 3 50 8.33 3.78 R ---410A 82.6 48410 41490 3808 4671 6.1 7.4 12.71 8.88 8.1 5,300 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
38CKM060---X---9 FB4CSL060L00EAAA 400 3 50 9.41 4.27 R ---410A 89.4 58920 51680 4656 5706 7.7 9.2 12.65 9.06 10.1 6,500 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
38CKM018---XQQ FB4CQL018L00EAAA 240 1 50 3.73 1.69 R ---410A 54.0 19160 16150 1462 1842 6.9 8.6 13.10 8.77 9.2 2,200 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
38CKM024---XQQ FB4CQL024L00EAAA 240 1 50 4.30 1.95 R ---410A 57.2 22670 20350 1804 2258 8.1 10.5 12.57 9.01 11.4 2,710 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
38CKM030---XQQ FB4CQL030L00EAAA 240 1 50 4.67 2.12 R ---410A 60.8 30790 26800 2376 3034 11.6 14.6 12.96 8.83 14.8 3,540 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
38CKM036---XQQ FB4CQL036L00EAAA 240 1 50 5.53 2.51 R ---410A 64.4 35750 31900 2784 3582 13.3 16.7 12.84 8.91 18.7 4,110 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
38CKM036---XQR FB4CQL037L00EAAA 415 3 50 5.53 2.51 R--- 410A 64.4 35230 31120 2780 3504 4.9 5.8 12.67 8.88 6.4 4,000 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
38CKM042---XQR FB4CQL042L00EAAA 415 3 50 7.46 3.38 R--- 410A 86.6 41000 36500 3208 4016 5.1 6.4 12.78 9.09 7.0 4,600 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
38CKM048---XQR FB4CQL048L00EAAA 415 3 50 8.33 3.78 R--- 410A 82.6 48410 41490 3808 4671 6.1 7.4 12.71 8.88 8.1 5,300 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
38CKM060---XQR FB4CQL060L00EAAA 415 3 50 9.41 4.27 R--- 410A 89.4 58920 51680 4656 5706 7.7 9.2 12.65 9.06 10.1 6,500 Carrier Corporation 7310 West Morris Street Indianapolis, IN 46231 U.S.A.
Engineered in USA, assembled in Mexico
Country of Origin: Mexico
7
DIMENSIONS
INCH
MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM Lbs Kgs Lbs Kgs INCH MM INCH MM
38CKM018-XQQ01-- 0 Y 25 3/4 654.0 25 5/16 642.4 3/4 19.1 4 7/16 113.0 21 1/4 539.9 9 1/8 231.3 5/16 7.9 3 76.2 13 5/8 346.1 12 1/8 308.0 9 7/8 250.8 119 54.0 130 59.0 26 3/4 679.9 26 15/16 684.8
38CKM024-XQQ01-- 0 Y 25 3/4 654.0 28 11/16 728.7 3/4 19.1 4 7/16 113.0 21 1/4 539.9 9 1/8 231.3 5/16 7.9 3 76.2 14 1/2 368.3 15 1/2 393.7 12 1/2 317.5 126 57.2 135 61.2 26 3/4 679.9 30 3/8 771.2
38CKM030-XQQ01-- 0 Y 31 3/16 792.5 24 7/8 631.6 3/4 19.1 6 9/16 166.1 24 11/16 626.3 9 1/8 231.3 5/16 7.9 3 76.2 15 9/16 395.3 16 1/2 419.1 10 1/4 260.4 134 60.8 152 68.9 32 3/16 817.9 26 7/16 672.1
38CKM036-XQQ01-- 0 Y 31 3/16 792.5 28 1/4 718.0 7/8 22.2 6 9/16 166.1 24 11/16 626.3 9 1/8 231.3 5/16 7.9 3 76.2 13 330.2 12 304.8 12 1/2 317.5 142 64.4 181 82.1 32 3/16 817.9 29 7/8 758.5
38CKM036-XQR01-- 0 Y 31 3/16 792.5 28 1/4 718.0 7/8 22.2 6 9/16 166.1 24 11/16 626.3 9 1/8 231.3 5/16 7.9 3 76.2 13 330.2 12 304.8 12 1/2 317.5 142 64.4 184 83.5 32 3/16 817.9 29 7/8 758.5
38CKM042-XQR01-- 0 Y 31 3/16 792.5 28 1/4 718.0 7/8 22.2 6 9/16 166.1 24 11/16 626.3 9 1/8 231.3 5/16 7.9 3 76.2 15 7/8 403.2 17 431.8 11 7/8 301.6 191 86.6 212 96.2 32 3/16 817.9 29 7/8 758.5
38CKM048-XQR01-- 0 Y 31 3/16 792.5 28 1/4 718.0 7/8 22.2 6 9/16 166.1 24 11/16 626.3 9 1/8 231.3 5/16 7.9 3 76.2 16 3/16 411.2 16 1/4 412.8 10 1/4 260.4 182 82.6 212 96.2 32 3/16 817.9 29 7/8 758.5
38CKM060-XQR01-- 0 Y 31 3/16 792.5 31 11/16 804.3 7/8 22.2 6 9/16 166.1 24 11/16 626.3 9 1/8 231.3 5/16 7.9 3 76.2 15 1/2 393.7 16 406.4 10 7/8 276.2 197 89.4 241 109.3 32 3/16 817.9 33 1/4 844.9
UNIT
SERIES
ELECTRICAL
CHARACTERISTICS
U.S. ECCN: Not Subject to Regulation (N.S.R.)
230-1-50
400-3-50
240-1-50
415-3-50
Y=YES
N=NO
NOTE: ALL DIMENSIONS IN INCH (MM)
SD5465-4 REV. A
NOTES:
1. CENTER OF GRAVITY .
UNIT SIZE
- 23 1/8 587.3 17 7/8 454.6
18,24 25 3/4 654.0 20 7/16 518.5
30,36,42,48,60 31 3/16 792.5 22 15/16 583.2
- ----
"Y"
MINIMUM ROOF-TOP MOUNTING
PAD AP PLICATION DIMENSIONS
"X"
MINIMUM GROUND MOUNTING
PAD AP PLICATION DIMENSIONS
8
DIMENSIONS
INCH
MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM Lbs Kgs Lbs Kgs INCH MM INCH MM
38CKM018-X-701-- 0 Y 25 3/4 654.0 25 5/16 642.4 3/4 19.1 4 7/16 113.0 21 1/4 539.9 9 1/8 231.3 5/16 7.9 3 76.2 13 5/8 346.1 12 1/8 308.0 9 7/8 250.8 119 54.0 130 59.0 26 3/4 679.9 26 15/16 684.8
38CKM024-X-701-- 0 Y 25 3/4 654.0 28 11/16 728.7 3/4 19.1 4 7/16 113.0 21 1/4 539.9 9 1/8 231.3 5/16 7.9 3 76.2 14 1/2 368.3 15 1/2 393.7 12 1/2 317.5 126 57.2 135 61.2 26 3/4 679.9 30 3/8 771.2
38CKM030-X-701-- 0 Y 31 3/16 792.5 24 7/8 631.6 3/4 19.1 6 9/16 166.1 24 11/16 626.3 9 1/8 231.3 5/16 7.9 3 76.2 15 9/16 395.3 16 1/2 419.1 10 1/4 260.4 134 60.8 152 68.9 32 3/16 817.9 26 7/16 672.1
38CKM036-X-701-- 0 Y 31 3/16 792.5 28 1/4 718.0 7/8 22.2 6 9/16 166.1 24 11/16 626.3 9 1/8 231.3 5/16 7.9 3 76.2 13 330.2 12 304.8 12 1/2 317.5 142 64.4 181 82.1 32 3/16 817.9 29 7/8 758.5
38CKM036-X-901-- 0 Y 31 3/16 792.5 28 1/4 718.0 7/8 22.2 6 9/16 166.1 24 11/16 626.3 9 1/8 231.3 5/16 7.9 3 76.2 13 330.2 12 304.8 12 1/2 317.5 142 64.4 184 83.5 32 3/16 817.9 29 7/8 758.5
38CKM042-X-901-- 0 Y 31 3/16 792.5 28 1/4 718.0 7/8 22.2 6 9/16 166.1 24 11/16 626.3 9 1/8 231.3 5/16 7.9 3 76.2 15 7/8 403.2 17 431.8 11 7/8 301.6 191 86.6 212 96.2 32 3/16 817.9 29 7/8 758.5
38CKM048-X-901-- 0 Y 31 3/16 792.5 28 1/4 718.0 7/8 22.2 6 9/16 166.1 24 11/16 626.3 9 1/8 231.3 5/16 7.9 3 76.2 16 3/16 411.2 16 1/4 412.8 10 1/4 260.4 182 82.6 212 96.2 32 3/16 817.9 29 7/8 758.5
38CKM060-X-901-- 0 Y 31 3/16 792.5 31 11/16 804.3 7/8 22.2 6 9/16 166.1 24 11/16 626.3 9 1/8 231.3 5/16 7.9 3 76.2 15 1/2 393.7 16 406.4 10 7/8 276.2 197 89.4 241 109.3 32 3/16 817.9 33 1/4 844.9
U.S. ECCN: Not Subject to Regulation (N.S.R.)
230-1-50
400-3-50
240-1-50
415-3-50
Y=YES
N=NO
NOTE: ALL DIMENSIONS IN INCH (MM)
SD5463-4 REV. A
UNIT
SERIES
ELECTRICAL
CHARACTERISTICS
NOTES:
1. CENTER OF GRAVITY .
UNIT SIZE
- 23 1/8 587.3 17 7/8 454.6
18,24 25 3/4 654.0 20 7/16 518.5
30,36,42,48,60 31 3/16 792.5 22 15/16 583.2
-----
"Y"
MINIMUM ROOF-TOP MOUNTING
PAD AP PLICATION DIMENSIONS
"X"
MINIMUM GROUND MOUNTING
PAD AP PLICATION DIMENSIONS
9
CARE AND MAINTENANCE
For continuing high performance and to minimize possible equipment failure, it is essential that periodic maintenance be performed on this
equipment. Consult your servicing contractor or Owner’s Manual for proper frequency of maintenance. Frequency of maintenance may vary
depending upon geographic areas, such as coastal applications.
Leave Owner’s Manual with homeowner. Explain system operation and maintenance procedures outlined in manual.
24 VAC HOT
24 VAC COM
R
C
G
W/W1
Y/Y2
R
C
C
A/C
THERMOSTAT
Typical
FAN COIL
AIR
CONDITIONER
G
W2
HEAT STAGE 1
COOL STAGE 1
INDOOR FAN
24 VAC HOT
24 VAC COM
R
C
G
W/W1
Y/Y2
R
C
C
A/C
THERMOSTAT
Typical
FURNACE
AIR
CONDITIONER
Y
G
W
HEAT STAGE 1
COOL STAGE 1
INDOOR FAN
A002326
Fig. 6 --- Generic Wiring Diagrams
(See Thermostat Installation Instructions for wiring specific unit combinations)
R-- 410A REFRIGERANT QUICK REFERENCE GUIDE
S R--410A refrigerant operates at 50 --70 percent higher pressures than R--22. Be sure that servicing equipment and replacement
components are designed to operate with R --410A refrigerant.
S R--410A refrigerant cylinders are rose colored.
S Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.
S R--410A refrigerant systems should be charged with liquid refrigerant. Use a commercial type metering device in the manifold hose
when charging into suction line with compressor operating.
S Manifold sets should be 700 psig high side and 180 psig low side with 550 psig low-- side retard.
S Use hoses with 700 psig service pressure rating.
S Leak detectors should be designed to detect HFC refrigerant.
S R--410A refrigerant, as with other HFCs, is only compatible with POE oils.
S Vacuum pumps will not remove moisture from oil.
S Do not use liquid--line filter driers with rated working pressures less than 600 psig.
S Do not leave R --410A refrigerant suction line filter driers in line longer than 72 hours.
S Do not install a suction--line filter drier in liquid--line.
S POE oils absorb moisture rapidly. Do not expose oil to atmosphere.
S POE oils may cause damage to certain plastics and roofing materials.
S Wrap all filter driers and service valves with wet cloth when brazing.
S A factory--approved liquid--line filter drier is required on every unit.
S Do NOT use an R -- 22 TXV.
S If indoor unit is equipped with an R --22 TXV, it must be changed to a bleed--type R--410A refrigerant TXV.
S Never open system to atmosphere while it is under a vacuum.
S When system must be opened for service, recover refrigerant, then pull a vacuum to minimum 500 microns, then break such vacuum
with dry nitrogen gas and replace filter driers.
S Do not vent R --410A refrigerant into the atmosphere.
S Do not use capillary tube coils.
S Observe all warnings, cautions,andbold text.
S All indoor coils must be installed with an R-- 410A refrigerant TXV metering device.
10
Copyright 2017 Carrier Co rp. S 7310 W. Morris St. S Indianapolis, IN 46231
Manufacturer reser ves the right to change, at any time, specifications and designs without notice and without obligations.
C a t a l o g N o : 3 8 C K M --- X --- Q --- 0 1 S I
Replaces: New
Printed in Mexico Edition Date: 10/17