BLD2024-0683_Manufacturer_Specifications_and_Installation_Instructions_5.22.2024_1.29.41_PM_427531424SCA4
ComfortTM Series Single -Stage Air Conditioner Carrier
with Puron® Refrigerant
1-1/2 To 5 Tons Turn to the experts
Product Data
This unit has been designed utilizing Carrier's Puron refrigerant. The
environmentally sound refrigerant allows you to make a responsible
decision in the protection of the earth's ozone layer.
NOTE: Ratings contained in this document are subject to change at any
time. Always refer to the AHRI directory (www.ahridirectory.org) for
the most up-to-date ratings information.
STANDARD FEATURES
Industry leading
Features / Benefits
Efficiency
• 13.4 - 16.0 SEER2 (13.5 - 16.5 SEER) /
11.0 — 13.5 EER2 (11.0 - 14.5 EER)
• Microtube Technology refrigeration system
• Indoor air quality accessories available
Reliability
• Puron refrigerant - environmentally sound, won't deplete the ozone
layer and low lifetime service cost.
• Scroll compressor
• Internal pressure relief valve
• Internal thermal overload
• Filter drier
Durability
WeatherArmofm Protection Package:
• Solid, durable sheet metal construction
• Dense wire coil guard
Applications
• Long —line — up to 250 feet (76.20 m) total equivalent length, up to 200
feet (60.96 m) condenser above evaporator, or up to 80 ft. (24.4 m)
evaporator above condenser (See Long Line Guide for more
information.)
• Low ambient cooling (down to 0°F / -18°C ) with approved low
ambient accessory kits.
Features
18
24
30
36
42
48
60
Puron Refrigerant
x
x
x
x
x
x
x
SEER2 (Range depending on indoor combination)
13.4 - 16.0
13.4 - 16.0
13.4 - 16.0
13.4 - 15.0
13.4 - 15.5
13.4 - 15.2
13.4 - 14.0
Scroll Compressor
x
x
x
x
x
x
x
Field Installed Filter Drier
x
x
x
x
x
x
x
Front Seating Service Valves
x
x
x
x
x
x
x
Internal Pressure Relief Valve
x
x
x
x
x
x
x
Internal Thermal Overload
x
x
x
x
x
x
x
Long Line Capability
x
x
x
x
x
x
x
Low Ambient Capability with Kit
x
x
x
x
x
x
x
24SCA4: Product Data
Model Number Nomenclature
1
2
3
4
5
6
7
8
9
10
11
12
N
N
A
A
A/N
N
N
N
A/N
A/N
A/N
N
2
4
S
C
A
4
1
8
N
0
0
3
Product Series
Design Type
Tier
Major
Series
SEER2
Cooling
Capacity
Region
Feature
Special Feature
Voltage
24 = R-410A
AC
S = Single
Stage AC
C = Comfort Series
A=Initial
4 = 13.4 SEER2
1,000 Btuh
(nominal)
N = Standard
North AC
O=Standard
O=Standard
3=208/230-1
CATALOG ORDERING NUMBERS
PGO
eron.
Use of the AHRI Certified
TM Mark indicates a
manufacturer's
participation in the
program For verification
of certification for individual
products, go to
—ahridirectcry.org.
Physical Data
eu
A CS
Quality
ISO 9001
f ere e—
UNIT SIZE
18
24
30
36
42
48
60
Compressor Type
Scroll
REFRIGERANT
Puron® (R-41 OA)
Control
TXV (Puron Hard Shutoff)
Factory Charge lb (kg)'
5.5 (2.49)
4.40 (2.00)
6.00 (2.72) 1 5.20 (2.36) 7.90 (3.58)
8.90 (4.04)
9.10 (4.13)
COND FAN
Propeller Type, Direct Drive
Air Discharge
Vertical
Air Qty (CFM)
1600
1800
2500
2750
4100
3850
4000
Motor HP
1/12
1/12
1/10
1/5
1/4
1/4
1/4
Motor RPM
1100
1100
1100
1100
1100
1100
1100
COND COIL
Face Area (Sq ft)
8.4
9.8
17.1
12.9
23.6
15.0
19.3
Fins per In.
25
25
25
20
25
20
20
Rows
1
1
1
1
1
2
2
Circuits
3
5
4
5
7
6
9
VALVE CONNECT. (In. ID)
Vapor
1 314
3/4
3/4
7/8
7/8
718
7/8
Liquid
3/8"
REFRIGERANT TUBES* (In. OD)
Rated Vaport
3/4
3/4
314
7/8
7/8
7/8
1-1/8
Rated Liquid Line$
3/8"
*.For 15 ft. lineset
f.Units are rated with 25 ft (7.6 m) of lineset length. See Vapor Line Sizing and Cooling Capacity Loss table when using other sizes and lengths of lineset.
I. See Liquid Line Sizing For Cooling Only Systems with Puron Refrigerant tables.
Note: See unit Installation Instruction for proper installation.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
24SCA4: Product Data
1:14aa M4amZk9:21:21ZLein 4k, Eel 0:"Im I k rn IEel k,6'I
Liquid Line Sizing and Maximum Total Equivalent Lengths for Cooling Only Systems with Puron®
Refrigerant:
The maximum allowable length of a residential split system depends on the liquid line diameter and vertical separation between indoor and outdoor
units.
See Table below for liquid line sizing and maximum lengths:
Table 1— Maximum Total Equivalent Length*
Outdoor Unit BELOW Indoor Unit
Size
Liquid Line
Connection
Liquid
LineDiam.
ne Dia
AC with Puron Refrigerant Maximum Total Equivalent Length : Outdoor unit BELOW Indoor
Vertical Se partition ft (m)
0-56-10
(0-1.5)
(1.83.0)
11-20
(3.4-6.1)
21-30
(6.4-9.1)
31-40
(9.4-12.2)
41-50
(12.5-1 5.2)
51-60
(15.5-18.3)
61-70
(18.6-21.3)
71-80
(21.6-24.4)
1/4
150
150
125
100
100
75
—
—
-
18000
3/8
5116
250*
250*
250*
250*
250*
250*
250*
225*
150
3/8
250*
250*
250*
250*
250*
250*
250*
250*
250*
1/4
75
75
75
50
50
--
—
—
--
24000
3/8
5/16
250*
250*
250*
250*
250*
225*
175
125
100
3/8
1 250*
250*
250*
250*
250*
250*
250*
250*
250*
1/4
30
--
--
--
--
--
--
—
30000
3/8
5/16
175
225*
200
175
125
100
75
—
--
3/8
250*
250*
250*
250*
250*
250*
250*
250*
250*
36000
3/8
5/16
175
150
150
100
100
100
75
—
--
3//8
250*
250*
250*
250*
250*
250*
250*
250*
250*
42000
3/8
5116
125
100
100
75
75
50
—
—
--
3/8
250*
250*
250*
250*
250*
250*
250*
250*
150
48000
3/8
3/8
250*
250*
250*
250*
250*
250*
230
160
--
60000
3/8
3/8
250*
250*
250*
225*
190
150
110
—
*.Maximum actual length not to exceed 200 ft (61 m)
t.Total equivalent length accounts for losses due to elbows or fitting. See the Long Line Guideline for details.
-- = outside acceptable range
Table 2 — Maximum* Total Equivalent Length
Outdoor Unit ABOVE Indoor Unit
Size
Liquid Line
Connection
Liquid Line
Dlam. w/TXV
AC with Puron Refrigerant Maximum Total Equivalent Length : Outdoor unit ABOVE Indoor
Vertical Separation ft (m)
25
(7.6)
26-50
(7.9-15.2)
51-75
(15.5-22.9)
76-100
(23.2-30.5)
101-125
(30.8-38.1)
126-150
(38.4-45.7)
151-175
(46.0-53.3)
176-200
(53.6-61.0)
1/4
175
250*
250*
250*
250*
250*
250*
250*
18000
3/8
5/16
250*
250*
250*
250*
250*
250*
250*
250*
3/8
250*
250*
250*
250*
250*
250*
250*
250*
1/4
100
125
175
200
225*
250*
250*
250*
24000
3/8
5/16
250*
250*
250*
250*
250*
250*
250*
250*
3/8
250*
250*
250*
250*
250*
250*
250*
250*
1/4
30
--
—
--
--
--
--
--
30000
3/8
5/16
250*
250*
250*
250*
250*
250*
250*
250*
3/8
250*
250*
250*
250*
250*
250*
250*
250*
36000
3/8
5/16
225*
250*
250*
250*
250*
250*
250*
250*
3/8
250*
250*
250*
250*
250*
250*
250*
250*
42000
318
5/16
175
200
250*
250*
250*
250*
250*
250*
3/8
250*
250*
250*
250*
250*
250*
250*
250*
48000
3/8
3/8
250*
250*
250*
250*
250*
250*
250*
250*
60000
318
3/8
250*
250*
250*
250*
250*
250*
250*
250*
*.Maximum actual length not to exceed 200 ft (61 m)
t.Total equivalent length accounts for losses due to elbows or fitting. See the Long Line Guideline for details.
-- = Outside acceptable range
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
24SCA4: Product Data
Table 3 — Refrigerant Charge Adjustments
Liquid Line Size
Puron Charge oz/ft (g/m)
3/8
0.60 (17.74)
(Factory charge for lineset = 9 oz / 266.16 g)
5/16
0.40 (11.83)
1/4
0.27 (7.98)
Units are factory charged for 15 ft (4.6 m) of 3/8" liquid line. The factory charge for 3/8" lineset 9 oz.(266.16 g). When using other length or diameter
liquid lines, charge adjustments are required per the chart above.
Charging Formula:
[(Lineset oz/ft X total length) — (factory charge for lineset)] = charge adjustment
Example 1: System has 15 ft of lineset* using existing 1/4" liquid line. What charge adjustment is required?
Formula:(.27 oz/ft X 15ft) — (9 oz) = (495) oz.
Net result is to remove 4.95 oz of refrigerant from the system
Example 2: System has 45 ft of existing 5/16" liquid line. What is the charge adjustment?
Formula:(.40 oz/ft. X 45ft) — (9 oz.) = 9 oz.
Net result is to add 9 oz of refrigerant to the system
NOTE: Conditions must be favorable for charging by subcooling method. Indoor temperature must be 70°F to 80°F (21°C to 27C), and outdoor
temperature must be 70°F to 100°F (21°C to 38°C). If outside these conditions, adjust charge for long linesets by weigh-in method.
* When applicable. Refer to Physical Data Table in this PD and to the Installation Instructions for more information.
Long Line Applications
An application is considered Long Line, when the refrigerant level in the system requires the use of accessories to maintain acceptable refrigerant
management for systems reliability. See Accessory Usage Guideline table for required accessories. Defining a system as long line depends on the
liquid line diameter, actual length of the tubing, and vertical separation between the indoor and outdoor units.
For Air Conditioner systems, the chart below shows when an application is considered Long Line.
Table 4 — AC with Puron® Refrigerant Long Line Description ft (m) Beyond these lengths, a TXV is required
Total Length Outdoor Unit Above or Below Indoor Unit
TXV required beyond 50 ft. (15.2 m) TXV required beyond 20 ft. (6.1 m)
Table 5 — AC with Puron® Refrigerant Long Line Description ft (m) (Beyond these lengths, long line accessories are required)
Liquid Line Size
Units On Same Level
Outdoor Below Indoor
Outdoor Above Indoor
1/4 + TXV
No accessories needed within allowed
lengths
No accessories needed within
allowed lengths
175 (53.3)
5/16 + TXV
120 (36.6)
50 (15.2) vertical or 120 (36.6) total
120 (36.6)
3/8 + TXV
80 (24.4)
35 (10.7) vertical or 80 (24.4) total
80 (24.4)
Note: See Residential Piping and Long Line Guideline for details
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
24SCA4: Product Data
VAPOR LINE SIZING AND COOLING CAPACITY LOSS
Acceptable vapor line diameters provide adequate oil return to the compressor while avoiding excessive capacity loss. The suction line diameters
shown in the chart below are acceptable for AC systems with Puron® refrigerant:
Table 6 — Vapor Line Sizing and Cooling Capacity Losses — Puron® Refrigerant 1-Stage Air Conditioner Applications
Unit
Nominal
Size (Btuh)
Maximum
Liquid Line
Diameters
(In. OD)
Vapor Line
Diameters
(in. OD)
1/2
Cooling Capacity Loss (%)
Total Equivalent Line Length ft. (m)
1-Stage AC with Puron®
26-50 51-80 81-100 101-125 126-150 151-175 176-200 201-225 226-250
(7.9-15.2) (15.5-24.4) (24.7-30.5) (30.8-38.1) (38.4-45.7) (46.0-53.3) (53.6-61.0) (61.3-68.6) (68.9-76.2)
1 2
3
5
6
7
8
9
11
18
3/8
5/8
0
1
1
1
2
2
2
3
3
3/4
0
0
0
0
1
1
1
1
1
5/8
0
1
2
2
3
3
4
5
5
24
3/8
3/4
0
0
1
1
1
1
1
2
2
7/8
0
0
0
0
0
1
1
1
1
5/8
1
2
3
3
4
5
6
7
8
30
3/8
3/4
0
0
1
1
1
2
2
2
3
7/8
0
0
0
0
1
1
1
1
1
5/8
1
2
4
5
6
8
9
10
12
36
3/8
3/4
0
1
1
2
2
3
3
4
4
7/8
0
0
0
1
1
1
1
2
2
3/4
0
1
2
2
3
4
4
5
6
42
3/8
7/8
0
0
1
1
1
2
2
2
3
11/8
0
0
0
0
0
0
0
0
0
3/4
0
1
2
3
4
5
5
6
7
48
3/8
7/8
0
0
1
1
2
2
2
3
3
11/8
0
0
0
0
0
0
0
1
1
3/4
1
2
4
5
6
7
9
10
11
60
3/8
7/8
0
1
2
2
3
4
4
5
5
11/8
0
0
0
1
1
1
1
1
1
Applications in this area may be long line and may have height restrictions. See the Residential Piping and Long Line Guideline.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
24SCA4: Product Data
ACCESSORIES
KIT NUMBER
KIT NAME
18
24
30
36
42
48
60
KSAFT0101AAA
FRZ THERM KIT
X
X
X
X
X
X
X
KAATD0101TDR
TIME DELAY KIT (90 second TDR)
X
X
X
X
X
X
X
KAATD0201TDR
TIME DELAY KIT (30 second TDR)
X
X
X
X
X
X
X
KSALA0301410
LOW AMBIENT COOLING KIT
X
X
X
X
X
X
X
KSALA1001AAA
MOTORMASTER KIT
X
X
X
X
X
X
X
KSAHS2501AAA
HARD START KIT
X
X
X
X
X
X
X
KSACY0101AAA
CYCLE PROTR KIT
X
X
X
X
X
X
X
KSASF0201AAA
SPIRT FEET KIT
X
X
X
X
X
X
X
KAALS0201 LLS*
SOL VALVE KIT
X
X
X
X
X
X
X
KAAWS0101AAA
WINTER ST KIT
X
X
X
X
X
X
X
KAALP0401 PUR
LOW PRESSURE SW KIT
X
X
X
X
X
X
X
KAAH10501PUR
HIGH PRESSURE SW KIT
X
X
X
X
X
X
X
KAACH1701AAA
CRKC HTR KIT
X
X
X
X
KAACH1601AAA
CRKC HTR KIT
X
X
X
KSATX0201 PUR
TXV KIT (For use with copper coils)
X
X
X
KSATX0301 PUR
TXV KIT (For use with copper coils)
X
X
KSATX0401 PUR
TXV KIT (For use with copper coils)
X
X
KSBTX0201 PUR
TXV KIT (For use with aluminum coils)
X
X
X
KSBTX0301 PUR
TXV KIT (For use with aluminum coils)
X
X
KSBTX0401 PUR
TXV KIT (For use with aluminum coils)
X
X
KSASH2301COP
SOUND BLKT KIT
X
X
X
X
KSASH2401COP
SOUND BLKT KIT
X
X
X
X =Accessory
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
24SCA4: Product Data
ACCESSORY USAGE GUIDELINE
REQUIRED FOR
REQUIRED FOR
LOW -AMBIENT COOLING
REQUIRED FOR LONG
SEA COAST
ACCESSORY
APPLICATIONS
LINE APPLICATIONS
APPLICATIONS
(Below 55°F/12.8°C)
Standard
Yes
Yes
Standard
(Within 2 miles/3.22 km)
Ball Bearing Fan Motor
Standard
No
Compressor Start Assist Capacitor and Relay
Yes
Crankcase Heater
Yes
No
Evaporator Freeze Thermostat
Yes
No
No
Liquid Line Solenoid Valve No See Long Line Guideline No
MotorMaster@ Control or Yes No No
Low -ambient Pressure Switch
Winter Start Control I Yest I No I No
*.For tubing set lengths between 80 and 200 ft. (24 and 61 m) horizontal or 35 ft. (10.7 m) vertical differential (total equivalent length), refer to the Residential Split -System Long Line
Application Guideline.
t.Required if Low Pressure Switch is factory or field installed.
Accessory Description and Usage (Listed Alphabetically)
1. Ball -Bearing Fan Motor 6. Low -Ambient Pressure Switch Kit
A fan motor with ball bearings which permits speed reduction while
maintaining bearing lubrication.
Usage Guideline:
Required on all units when MotorMaster® is used.
2. Compressor Start Assist - Capacitor and Relay
Start capacitor and relay gives a "hard" boost to compressor motor at
each start up.
Usage Guideline:
Required for single-phase scroll compressors in the following
applications:
Long line
Low ambient cooling
Suggested for all compressors in areas with a history of low voltage
problems.
3. Crankcase Heater
An electric resistance heater which mounts to the base of the compressor
to keep the lubricant warm during off cycles. Improves compressor
lubrication on restart and minimizes the chance of liquid slugging.
Usage Guideline:
Required in low ambient cooling applications.
Required in long line applications.
Suggested in all commercial applications.
4. Cycle Protector
The cycle protector is designed to prevent compressor short cycling.
This control provides an approximate 5-minute delay after power to the
compressor has been interrupted for any reason, including power outage,
protector control trip, thermostat jiggling, or normal cycling.
5. Evaporator Freeze Thermostat
An SPST temperature -actuated switch that stops unit operation when
evaporator reaches freeze-up conditions.
Usage Guideline:
Required when low ambient kit has been added.
A long life pressure switch which is mounted to outdoor unit service
valve. It is designed to cycle the outdoor fan motor in order to maintain
head pressure within normal operating limits (approximately 100 prig to
225 psig). The control will maintain working head pressure at
low -ambient temperatures down to 0°F (-18°C) when properly installed
and also using wind baffles. Instructions provided in accessory kit.
Usage Guideline:
A Low -Ambient Pressure Switch or MotorMaster@ Low -Ambient
Controller must be used when cooling operation is used at outdoor
temperatures below 55°F (12.8°C).
7. MotorMaster® Low -Ambient Controller
A fan -speed control device activated by a temperature sensor, designed
to control condenser fan motor speed in response to the saturated,
condensing temperature during operation in cooling mode only. For
outdoor temperatures down to—10°F/-23.3°C), it maintains condensing
temperature at 1001F f10°F (37.81C f5.51Q.
Usage Guideline:
A MotorMaster@ Low Ambient Controller or Low -Ambient
Pressure Switch must be used when cooling operation is used at
outdoor temperatures below 55°F (12.8°C).
Suggested for all commercial applications.
8. Outdoor Air Temperature Sensor
This device enables the thermostat to display the outdoor temperature.
This device is also required to enable special thermostat features such as
auxiliary heat lock out.
Usage Guideline:
Suggested for use with compatible Carrier thermostats.
9. Sound Hood
Wraparound sound reducing cover for the compressor. Reduces the
sound level of the compressor.
Usage Guideline:
Suggested when unit is installed closer than 15 ft (4.57 m) to quiet
areas, bedrooms, etc.
Suggested when unit is installed between two houses less than
10 ft (3 m) apart.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
24SCA4: Product Data
Accessory Description and Usage (Listed Alphabetically) Continued
10. Support Feet
Four or five stick -on plastic feet that raise the unit 4 in. (101.6 mm)
above the mounting pad. This allows sand, dirt, and other debris to be
flushed from the unit base, minimizing corrosion.
Usage Guideline:
Suggested in the following applications:
Coastal installations.
Windy areas or where debris is normally circulating.
Rooftop installations.
For improved sound ratings.
11. Thermostatic Expansion Valve (TXV)
A modulating flow -control valve which meters refrigerant liquid flow
rate into the evaporator in response to the superheat of the refrigerant gas
leaving the evaporator.
Kit includes valve, adapter tubes, and external equalizer tube. Hard shut
off types are available.
Usage Guideline:
Required to achieve AHRI ratings in certain equipment
combinations. Refer to combination ratings.
Hard shut off TXV or LLS required in air conditioner long line
applications.
Required for use on all zoning systems.
12. Time -Delay Relay
An SPST delay relay which briefly continues operation of indoor blower
motor to provide additional cooling after the compressor cycles off.
NOTE: Most indoor unit controls include this feature. For those that do
not, use the guideline below.
Usage Guideline:
For improved efficiency ratings for certain combinations of indoor
and outdoor units. Refer to AHRI Directory of Certified Product
Performance (AHRI Directory).
When a Time -Delay Relay (TDR) is called for in the AHRI Directory,
use a 30 second TDR for MicroChannel Indoor units and use a 90
second TDR for Round Tube Plate Fin Indoor units.
13. Winter Start Control
This control is designed to alleviate nuisance opening of the
low-pressure switch by bypassing it for the first 3 minutes of operation.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
24SCA4: Product Data
AHRI RATINGS
For AHRI ratings certificates, please refer to the AHRI directory www.ahridirectory.org
Additional ratings and system combinations can be accessed via the Ratings Database here: www.MyCarrierRatings.com
Electrical Data
UNIT SIZE
V/PH
OPER VOLTS
COMPR
FAN
MCA
MAX FUSET or CKT BRK
AMPS
MAX
MIN
LRA
RLA
FLA
18
208-230/1
253
197
48.0
8.00
0.40
10.4
15
24
59.5
11.70
0.50
15.1
25
30
64.3
11.80
0.75
15.6
25
36
80.1
12.20
1.05
16.4
25
42
110.2
17.70
1.40
23.5
40
48
124.0
18.50
1.40
24.5
40
60
150.0
25.60
1.52
33.5
50
*.Permissible limits of the voltage range at which the unit will operate satisfactorily
t.Time-Delay fuse.
FLA- Full Load Amps
LRA - Locked Rotor Amps
MCA- Minimum Circuit Amps
RLA- Rated Load Amps
NOTE:Control circuit is 24V on all units and requires external power source. Copper wire must be used from service disconnect to unit.
All motors/compressors contain internal overload protection.
Complies with requirements of ASHRAE Standards 90.1
Sound Power Level without sound shield
UNIT SIZE
STANDARD
RATING (dBA)
TYPICAL OCTAVE BAND SPECTRUM
(without tone adjustment) (dB)
125
250
500
1000
2000
4000
8000
18
75
68.9
65.3
65.6
71.4
68.4
63.8
61.2
24
74
66.9
72.6
70.0
70.7
66.6
62.7
59.2
30
73
69.5
68.9
68.9
68.5
62.8
60.0
57.4
36
75
70.8
73.6
71.5
69.5
66.1
63.6
58.1
42
73
73.9
72.6
70.3
68.2
64.3
61.2
57.3
48
76
72.3
74.1
71.2
70.6
63.8
61.6
55.9
60
76
70.0
75.0
71.9
73.7
66.0
61.7
56.3
NOTE: Tested in compliance with AHRI 270 but not listed with AHRI.
Sound Power Level with Accessory sound shield
UNIT SIZE
STANDARD
RATING (dBA)
TYPICAL OCTAVE BAND SPECTRUM (without tone adjustment)
(dB)
125
250
500
1000
2000
4000
8000
18
75
66.4
67.0
66.1
71.5
66.6
62.5
61.1
24
74
68.4
72.2
70.4
70.2
66.0
62.3
58.5
30
72
69.3
69.7
68.8
68.0
62.4
59.5
55.7
36
75
71.0
73.7
71.2
69.0
65.4
63.0
57.7
42
73
75.3
71.7
70.0
68.1
63.9
60.2
55.3
48
74
73.3
74.2
71.6
69.9
63.8
60.4
54.7
60
75
70.2
73.9
71.8
72.4
64.2
60.4
54.6
NOTE: Tested in compliance with AHRI 270 but not listed with AHRI.
Charging Subcooling (TXV-Type Expansion Device)
UNIT SIZE REQUIRED SU
18 1
24 1
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
DIMENSIONS
OPERATING
SHIPPING
SHIPPING
SHIPPING
UNIT
SERIESELECTRICAL
A
B
C
D
E
F
G
H
I
K
WEIGHT
WEIGHT
LENGTH
HEIGHT
CHARACTERISTICS
WIDTH
.
(Sq.)
INCH
MM
INCH
MM
INCH
MM
INCH
MM
NCH
MM
INCH
MM
INCH
MM
NCH
MM
INCH
MM
INCH
MM
NCH
MM
LbsK
s
INCH
MM
INCH
MM
24SCA418N'0
0
Y
N
N
N
23 1/8
587.3
25 5/16
642.9
3/4
19.1
4 7/16
113.0
18 1/16
459.0
713/16
197.9
5/16
7.9
3
76.2
11
279.4
10 1/2
266.7
10 1/4
260A
109
49A
26
660.0
30 9/16
775.7
24SCA424N'0
0
Y
N
N
N
25 314
654.0
25 5116
642.4
314
19.1
4 7/16
113.0
21 114
539.9
9 1/8
231.3
5116
7.9
3
76.2
13 112
342.9
13
3302
12 1/2
317.5
121
54.9
28 3/4
730.0
30 9/1624SCA430N'0
0
Y
N
N
N
31 3/16
792.5
32 1/16
815.1
3/4
19.1
6 9/16
166.1
2411/16
626.3
9 118
231.3
5/16
7.9
3
76.2
15
381.0
15 3/4
400.1
16
406.40
161
73.0
34 1/4
870.0
37 W16
947.9
24SCA436N'0
0
Y
N
N
N
31 3/16
792.5
25 5/16
642.4
7/8
22.2
6 9/16
166.1
2411/16
626.3
9 1/8
231.3
5/16
7.9
3
76.2
14 1/2
365.3
15
381.0
11 12
292.19
$Lb.K
146
66.2
34 1/4
870.0
30 12
775.2
24SCA442N'0
0
Y
N
N
N
31 3/16
792.5
42 5/16
1074.2
7/8
22.2
6 9/16
166.1
2411/16
626.3
9 118
231.3
5/16
7.9
3
76.2
17
431.8
15 1/2
393.7
22 1/2
571.51
203
92.1
34 1/4
870.0
47 112
1207.1
24SCA448N`0
0
Y
N
N
N
31 3/i6
79.5
2811/16
728.7
7/8
22.2
6 9/16
166.1
2411/16
626.3
9 118
231.3
5116
7.9
3
76.2
14 1/2
368.3
14 1/2
368.3
12 1/2
317.56
1.
86.2
34 1.
870.0
.1.16
.1.6
24SCA460N•0
0
Y
N
N
N
31 3/16
792.5
35 1/2
901.4
7/8
222
6 9/16
166.1
2411/16
626.3
9 1/8
231.3
5116
7.9
3
76.2
15 112
393.7
16
406.4
18 1/2
469.92
206
93.4
34 1.
870.0
40 3.
1034.3
'4 W
m m Y=YES
NOTES:
N=N)
1. CENTER OF GRAY rry
A so.
AIR DISCHARGE
`
AIR IN AIR
DISCHARGE
I
F
�
FIELD
POWER SUPPLY CONN.
7/8"(022.2) HOLE WITH
AIR IN --AIR
IN
B 1
1/8"(028.6) KNOCKOUT
FIELD CONTROL SUPPLY CON
07/8"($22.2) HOLE
' o
E
LIQUID LINE000NN.
K
J
3 3/4" 3 1/2"
(96.0) (88.9)
H
D
O CVAPOR LINE CONN. I� Y so.
1 13/16"
(46.7)
G
X S0.
(12.7)
¢3/8"(¢9.5) TIEDOWN KNOCKOUTS
PLACES"
LR
2 13/16(2)
(11.0)
IN
NOTE: ALL
DIMENSIONS
IN INCH (MM)
U.S. ECCN: Not Subject to Regulation (N.S.R.)
SD5750-4 REV. A
CLEARANCES A
Cn
D
A
Clearances (various examples)
a
Q
0
v
v
Wall Wall
6"
(152.4 mm)
' (609.6)
Service
12"
(304.8)
24"
(609.6)
18"
(457.2)
' (304.8)
18"
(457.2)
U��F1 I
24"
(609.6)
Service
1213
(304.8)
18"
(457.2)
24"
Service
52'.4)I 90
12"
(304.8)
24"
(609.6)
Service
jj
Note: Numbers in () = mm
Allow 48" above unit
IMPORTANT: When installing multiple units in an alcove, roof well, or partially enclosed area, ensure there is adequate ventilation to prevent re -circulation of discharge air.
DETAILED COOLING CAPACITIES
EVAPORATOR AIR
CONDENSER ENTERING AIR TEMPERATURES °F (°C)
75 (23.9)
85 (29.4)
95 (35)
(40.6)
115 (46.1)
125 (51.7)
CFM
EWB
Capacity MBtuh
Total Sys.
kW**
Capacity MBtuh
Total Sys.
kW**
24SCA418NO030
Capacity MBtuh
Total Sys.T"C.p..ItyuCapacity
kW**ns#
kW**
MBtuh
Total Sys
kW**
Capacity MBtuh
Total Sys.
kW*-
Total
Sens#
Total
Sens#
Total
Outdoor
Sens#
Total
I Sens#
Total
Sens#
72 (22.2)
21.70
10.46
1.25
20.88
10.18
1.39
19.91
9.85
1.56
18.79
9.48
1.74
17.55
9.08
1.95
16.21
8.64
2.20
67 (19.4)
19.75
12.90
1.25
18.95
12.60
1.40
18.00
12.25
1.56
16.92
11.85
1.74
15.76
11.43
1.96
14.51
10.99
2.22
525
63 (17.2)tt
18.34
12.41
1.25
17.55
12.09
1.40
16.62
11.72
1.56
15.58
11.32
1.75
14.48
10.88
1.97
13.31
10.44
2.23
62 (16.7)
17.96
15.27
1.25
17.19
14.94
1.40
16.29
14.55
1.56
15.40
15.40
1.75
14.54
14.54
1.96
13.62
13.62
2.22
57 (13.9)
17.50
17.50
1.25
16.89
16.89
1.40
16.17
16.17
1.56
15.38
15.38
1.75
14.51
14.51
1.96
13.59
13.59
2.23
72 (22.2)
22.06
11.03
1.28
21.21
10.75
1.43
20.21
10.42
1.59
19.06
10.05
1.77
17.78
9.64
1.99
16.39
9.21
2.24
67 (19.4)
20.10
13.82
1.28
19.27
13.52
1.43
18.30
13.17
1.59
17.20
12.77
1.78
16.00
12.34
1.99
14.71
11.89
2.25
600
63 (17.2)tt
18.69
13.28
1.29
17.87
12.95
1.43
16.92
12.58
1.60
15.85
12.16
1.78
14.70
11.73
2.00
13.50
11.27
2.26
62 (16.7)
18.38
18.38
1.29
17.67
17.67
1.43
16.91
16.91
1.59
16.07
16.07
1.78
15.15
15.15
1.99
14.16
14.16
2.25
57 (13.9)
18.28
18.28
1.29
17.64
17.64
1.43
16.88
16.88
1.59
16.04
16.04
1.78
15.12
15.12
1.99
14.13
14.13
2.25
72 (22.2)
22.31
11.59
1.32
21.44
11.31
1.47
20.41
10.98
1.63
19.23
10.60
1.81
17.93
10.20
2.02
16.51
9.76
2.27
67 (19.4)
20.34
14.72
1.32
19.51
14.42
1.47
18.52
14.06
1.63
17.39
13.66
1.81
16.16
13.23
2.03
14.86
12.76
2.28
675
63 (17.2)tt
18.94
14.11
1.32
18.11
13.79
1.47
17.13
13.41
1.63
16.03
12.99
1.82
14.87
12.54
2.03
13.65
12.05
2.30
62 (16.7)
18.95
18.95
1.32
18.29
18.29
1.47
17.50
17.50
1.63
16.62
16.62
1.81
15.65
15.65
2.03
14.60
14.60
2.28
57 (13.9)
18.93
18.93
1.32
18.26
18.26
1.47
24SCA424NO030
17.48
Outdoor
17.48
1.63
16.59
16.59
1.81
15.62
15.62
2.03
14.58
14.58
2.28
72 (22.2)
27.12
13.79
1.58
26.00
13.38
1.76
24.79
12.92
1.96
23.58
12.43
2.19
22.15
11.88
2.46
20.56
11.27
2.76
67 (19.4)
24.86
16.90
1.59
23.89
16.45
1.77
22.79
15.97
1.97
21.51
15.43
2.20
20.19
14.83
2.48
18.69
14.18
2.79
700
63 (17.2)tt
23.09
16.32
1.59
22.19
15.88
1.77
21.10
15.38
1.98
19.93
14.79
2.22
18.64
14.19
2.49
17.22
13.52
2.80
62 (16.7)
22.57
19.79
1.59
21.76
19.40
1.77
20.76
18.96
1.98
19.56
18.32
2.22
18.39
17.79
2.49
17.32
17.32
2.80
57 (13.9)
22.09
22.09
1.60
21.50
21.50
1.78
20.38
20.38
1.98
19.57
19.57
2.22
18.45
18.45
2.49
17.26
17.26
2.80
72 (22.2)
27.54
14.33
1.62
26.39
13.90
1.80
25.30
13.43
2.00
23.98
12.89
2.24
22.47
12.35
2.50
20.75
11.69
2.80
67 (19.4)
25.37
17.77
1.63
24.34
17.32
1.81
23.20
16.82
2.02
21.80
16.17
2.24
20.50
15.65
2.52
18.97
14.99
2.83
805
63 (17.2)tt
23.58
17.13
1.64
22.58
16.65
1.82
21.52
16.23
2.02
20.09
15.48
2.25
18.94
14.94
2.54
17.47
14.28
2.85
62 (16.7)
23.07
21.03
1.64
22.18
20.62
1.82
21.12
20.11
2.03
19.93
17.98
2.26
19.13
19.13
2.53
17.90
17.90
2.85
57 (13.9)
23.01
23.01
1.64
22.07
22.07
1.82
21.13
21.13
2.03
20.28
20.28
2.26
19.09
19.09
2.54
17.83
17.83
2.84
72 (22.2)
27.81
14.76
1.66
26.65
14.31
1.84
25.58
13.83
2.04
24.30
13.30
2.28
22.68
12.74
2.54
21.00
12.11
2.85
67 (19.4)
25.70
18.49
1.68
24.63
18.03
1.85
23.44
17.51
2.06
22.14
16.94
2.29
20.70
16.35
2.56
19.12
15.69
2.87
900
63 (17.2)tt
23.95
17.84
1.68
22.89
17.33
1.86
21.75
16.80
2.07
20.49
16.21
2.30
19.13
15.58
2.58
17.61
14.90
2.89
62 (16.7)
23.47
22.13
1.68
22.96
21.92
1.86
21.56
21.56
2.07
20.53
20.53
2.29
19.56
19.56
2.57
18.17
18.17
2.87
57 (13.9)
23.63
23.63
1.68
22.77
22.77
1.86
24SCA43ON0030
21.69
Outdoor
1 21.69
2.07
20.71
20.71
2.30
19.56
19.56
2.58
18.18
18.18
2.88
72 (22.2)
34.39
17.38
1.99
32.89
16.86
2.20
31.29
16.31
2.44
29.57
15.72
2.72
27.69
15.09
3.05
25.62
14.41
3.43
67 (19.4)
31.24
21.52
2.00
29.86
20.98
2.21
28.39
20.42
2.45
26.82
19.83
2.73
25.09
19.18
3.06
23.18
18.47
3.44
875
63 (17.2)tt
29.00
20.68
2.01
27.71
20.14
2.22
26.34
19.58
2.46
24.85
18.97
2.74
23.23
18.32
3.07
21.41
17.59
3.46
62 (16.7)
28.48
25.54
2.01
27.24
24.97
2.22
25.99
25.99
2.46
24.73
24.73
2.76
23.45
23.45
3.07
21.92
21.92
3.54
57 (13.9)
27.96
27.96
2.01
26.96
26.96
2.22
25.89
25.89
2.46
24.71
24.71
2.75
23.41
23.41
3.07
21.95
21.95
3.45
72 (22.2)
34.92
18.35
2.05
33.36
17.82
2.25
31.70
17.27
2.49
29.96
16.72
2.79
27.97
16.03
3.11
25.83
15.34
3.49
67 (19.4)
31.76
23.06
2.06
30.32
22.52
2.26
28.80
21.95
2.50
27.22
21.35
2.80
25.39
20.68
3.12
23.43
19.96
3.50
1000
63 (17.2)tt
29.51
22.12
2.07
28.16
21.56
2.27
26.74
20.99
2.51
25.19
20.35
2.82
23.52
19.70
3.13
21.69
18.97
3.51
62 (16.7)
29.20
29.20
2.07
28.12
28.12
2.27
26.96
26.96
2.51
25.70
25.70
2.79
24.31
24.31
3.12
22.75
22.75
3.50
57 (13.9)
29.16
29.16
2.07
28.07
28.07
2.27
26.92
26.92
2.51
25.67
25.67
2.80
24.27
24.27
3.12
22.72
22.72
3.50
72 (22.2)
35.29
19.30
2.10
33.68
18.77
2.31
31.97
18.21
2.55
30.14
17.61
2.83
28.14
16.96
3.16
25.95
16.25
3.54
67 (19.4)
32.14
24.57
2.12
30.66
24.01
2.32
29.10
23.43
2.56
27.45
22.81
2.85
25.61
22.13
3.17
23.66
21.36
3.57
1125
63 (17.2)tt
29.88
23.51
2.13
28.49
22.95
2.33
27.03
22.36
2.57
25.46
21.73
2.85
23.75
21.03
3.18
21.90
20.22
3.56
62 (16.7)
30.19
30.19
2.12
29.04
29.04
2.33
27.81
27.81
2.57
26.50
26.50
2.86
25.01
25.01
3.18
23.37
23.37
3.55
57 (13.9)
30.14
30.14
2.12
29.00
29.00
2.33
27.77
27.77
2.57
26.46
26.46
2.85
24.98
24.98
3.18
23.34
23.34
3.55
DETAILED COOLING CAPACITIES
CONDENSER ENTERING AIR TEMPERATURES °F CC)
EVAPORATOR AIR
75 (23.9)
85 (29.4)
95 (35)
(40.6)
115 (46.1)
125 (51.7)
CFM
EWB
Capacity MBtuh
Total Sys.
Capacity MBtuh
Total Sys.
kW**
24SCA436NO030
Capacity MBtuh
Total Sys.T"C.p..Ityuh
kW**ns#
Total Sys
kW**
Capacity MBtuh
Total Sys
kW**
Capacity MBtuh
Total Sys.
kW*-
Total
Sens#
Total
Outdoor
Sens#
Total
Sens#
Total
Sens#
72 (22.2)
40.69
19.90
2.41
38.81
19.27
2.66
36.90
18.55
2.93
34.80
17.74
3.24
32.32
16.95
3.61
29.76
16.06
4.05
67 (19.4)
37.24
24.64
2.42
35.72
23.66
2.67
33.80
23.24
2.94
31.87
22.38
3.25
29.66
21.55
3.61
27.24
20.62
4.06
1090
63 (17.2)tt
34.67
23.82
2.41
33.26
23.01
2.67
31.46
22.47
2.94
29.62
21.58
3.25
27.60
20.72
3.61
25.33
19.76
4.04
62 (16.7)
34.01
29.13
2.41
32.44
28.47
2.67
30.82
27.76
2.94
29.10
27.01
3.25
27.71
27.71
3.61
25.82
25.82
4.05
57 (13.9)
33.39
33.39
2.41
32.23
32.23
2.67
30.78
30.78
2.94
29.37
29.37
3.25
27.60
27.60
3.60
25.78
25.78
4.05
72 (22.2)
41.15
20.46
2.46
39.22
19.82
2.71
37.24
19.05
2.98
35.04
18.27
3.29
32.56
17.45
3.66
29.93
16.53
4.10
67 (19.4)
37.72
25.54
2.46
36.08
24.90
2.72
34.15
24.09
2.99
32.09
23.27
3.30
29.90
22.38
3.66
27.42
21.47
4.10
1200
63 (17.2)tt
35.02
23.92
2.47
33.56
23.97
2.72
31.80
23.19
2.99
29.92
22.39
3.30
27.84
21.51
3.66
25.50
20.53
4.10
62 (16.7)
34.48
30.45
2.47
32.90
29.75
2.72
31.91
29.92
2.99
30.06
30.06
3.30
28.26
28.26
3.66
26.48
26.48
4.10
57 (13.9)
34.26
34.26
2.47
33.05
33.05
2.72
31.54
31.54
2.99
30.03
30.03
3.30
28.25
28.25
3.67
26.28
26.28
4.10
72 (22.2)
41.63
21.14
2.52
39.74
20.44
2.78
37.66
19.72
3.05
35.34
18.92
3.36
32.83
18.06
3.73
30.09
17.10
4.17
67 (19.4)
38.24
26.68
2.53
36.46
25.96
2.78
34.51
25.20
3.06
32.34
24.42
3.37
30.09
23.49
3.73
27.57
22.55
4.17
1350
63 (17.2)tt
35.61
25.70
2.53
33.97
25.00
2.79
32.14
24.21
3.06
30.10
23.35
3.36
28.07
22.60
3.73
25.65
21.51
4.16
62 (16.7)
36.30
29.92
2.54
34.32
32.06
2.79
32.34
32.34
3.06
30.75
30.75
3.37
28.95
28.95
3.73
26.86
26.86
4.17
57 (13.9)
35.27
35.27
2.53
33.95
33.95
2.79
32.44
•• • Outdoor
1 32.44
3.06
30.72
1 30.72
3.37
28.85
28.85
3.73
26.83
26.83
4.17
72 (22.2)
46.39
23.82
2.89
44.31
23.00
3.17
42.29
22.15
3.47
40.04
21.26
3.82
37.65
20.36
4.21
35.07
19.31
4.64
67 (19.4)
42.01
28.83
2.89
40.38
28.12
3.16
38.40
27.16
3.47
36.33
26.24
3.81
34.14
25.28
4.20
31.79
24.24
4.64
1225
63 (17.2)tt
38.81
27.78
2.89
37.18
26.96
3.16
35.44
26.12
3.46
33.55
25.22
3.81
31.50
24.24
4.19
29.30
23.18
4.62
62 (16.7)
38.00
33.69
2.89
36.43
32.85
3.16
34.78
32.08
3.46
32.89
31.10
3.80
30.92
30.17
4.19
29.16
29.16
4.62
57 (13.9)
36.62
36.62
2.89
35.50
35.50
3.16
34.20
34.20
3.46
32.74
32.74
3.80
31.07
31.07
4.19
29.26
29.26
4.62
72 (22.2)
47.19
24.61
2.97
45.21
23.77
3.24
43.00
22.90
3.55
40.67
21.99
3.90
38.13
21.02
4.29
35.43
19.99
4.72
67 (19.4)
42.84
30.07
2.97
40.94
29.23
3.24
39.00
28.34
3.55
36.87
27.42
3.89
34.60
26.43
4.28
32.13
25.38
4.71
1380
63 (17.2)tt
39.55
28.93
2.97
37.86
28.10
3.24
36.04
27.39
3.54
34.06
26.28
3.88
31.94
25.30
4.27
29.63
24.25
4.70
62 (16.7)
38.77
35.39
2.96
37.09
34.54
3.23
35.35
33.69
3.54
33.87
30.17
3.89
31.31
32.28
4.26
30.14
30.14
4.72
57 (13.9)
37.87
37.87
2.96
36.72
36.72
3.23
35.32
35.32
3.54
33.71
33.71
3.88
32.00
32.00
4.28
29.94
29.94
4.66
72 (22.2)
48.16
25.44
3.06
45.96
24.63
3.34
43.73
23.76
3.65
41.29
22.81
3.99
38.61
21.81
4.38
35.78
20.70
4.82
67 (19.4)
43.67
31.54
3.06
41.70
30.65
3.33
39.63
29.77
3.64
37.39
28.81
3.98
35.02
27.80
4.38
32.47
26.73
4.81
1575
63 (17.2)tt
40.32
30.30
3.06
38.53
29.42
3.33
36.60
28.54
3.63
34.54
27.57
3.98
32.33
26.53
4.35
29.94
25.45
4.80
62 (16.7)
39.54
37.49
3.06
37.80
36.67
3.33
36.70
35.79
3.63
34.71
34.71
3.98
32.91
32.91
4.36
30.96
30.96
4.80
57 (13.9)
39.24
39.24
3.06
38.00
38.00
3.33
24SCA448NO030
36.36
Outdoor
36.36
3.63
34.72
34.72
3.98
32.80
32.80
4.36
30.90
30.90
4.80
72 (22.2)
54.25
27.28
3.40
51.97
26.48
3.71
49.55
25.64
4.08
46.97
24.75
4.50
44.19
23.81
4.97
41.16
22.81
5.50
67 (19.4)
49.34
33.66
3.39
47.24
32.84
3.70
45.01
31.98
4.06
42.64
31.08
4.48
40.14
30.09
4.95
37.32
29.08
5.47
1400
63 (17.2)tt
45.82
32.37
3.39
43.85
31.54
3.69
41.76
30.68
4.05
39.55
29.76
4.46
37.16
28.79
4.93
34.57
27.75
5.45
62 (16.7)
45.10
39.88
3.38
43.21
39.02
3.69
41.23
38.08
4.05
39.25
39.25
4.46
37.33
37.33
4.93
35.21
35.21
5.46
57 (13.9)
44.11
44.11
3.38
42.58
42.58
3.69
40.95
40.95
4.05
39.19
39.19
4.46
37.23
37.23
4.93
35.15
35.15
5.46
72(22.2)
54.89
28.36
3.47
52.54
27.56
3.78
50.05
26.71
4.15
47.40
25.81
4.57
44.55
24.86
5.05
41.45
23.84
5.57
67 (19.4)
49.97
35.37
3.46
47.80
34.54
3.77
45.50
33.67
4.14
43.10
32.76
4.55
40.48
31.78
5.02
37.65
30.72
5.55
1545
63 (17.2)tt
46.43
33.96
3.46
44.39
33.12
3.76
42.25
32.25
4.12
39.98
31.32
4.54
37.53
30.33
5.00
34.88
29.26
5.53
62 (16.7)
45.90
42.13
3.46
44.13
40.89
3.76
42.23
42.23
4.12
40.37
40.37
4.54
38.35
38.35
5.01
36.12
36.12
5.54
57 (13.9)
45.51
45.51
3.45
43.89
43.89
3.76
42.17
42.17
4.12
40.32
40.32
4.54
38.30
38.30
5.01
36.08
36.08
5.53
72 (22.2)
55.69
30.18
3.59
53.24
29.36
3.91
50.66
28.50
4.28
47.90
27.59
4.70
44.95
26.62
5.17
41.75
25.59
5.70
67 (19.4)
50.78
38.29
3.58
48.53
37.44
3.90
46.16
36.55
4.26
43.68
35.62
4.68
40.98
34.60
5.15
38.09
33.48
5.67
1800
63 (17.2)tt
47.22
36.66
3.58
45.11
35.80
3.89
42.89
34.90
4.25
40.54
33.94
4.66
38.03
32.91
5.13
35.33
31.77
5.65
62 (16.7)
47.61
47.61
3.58
45.85
45.85
3.89
43.99
43.99
4.25
41.98
41.98
4.67
39.82
39.82
5.14
37.43
37.43
5.67
57 (13.9)
47.54
47.54
3.58
45.79
45.79
3.89
43.93
43.93
4.25
41.93
41.93
4.67
39.76
39.76
5.14
37.38
37.38
5.67
DETAILED COOLING CAPACITIES
CONDENSER ENTERING AIR TEMPERATURES °F CC)
EVAPORATOR AIR
75 (23.9)
85 (29.4)
95 (35)
(40.6)
115 (46.1)
125 (51.7)
CFM
EWB
Capacity MBtuh
Total Sys.
Capacity MBtuh
Total Sys.
kW**
24SCA46ON0030
Capacity MBtuh
Total Sys.T"C.p..Ity
kW**ns#
Total Sys
kW**
Capacity MBtuh
Total Sys
kW**
Capacity MBtuh
Total Sys.
kW*-
Total
Sens#
Total
Outdoor
Sens#
Total
Sens#
Total
Sens#
72 (22.2)
67.31
34.72
4.23
64.05
33.52
4.62 60.65
32.23
5.08
57.21
30.87
5.60
53.30
29.42
6.18
49.09
27.91
6.83
67 (19.4)
61.11
42.71
4.20
58.80
41.29
4.60
55.50
40.17
5.05
52.26
38.78
5.56
48.75
37.20
6.15
44.88
35.62
6.80
1800
63 (17.2)tt
56.68
41.19
4.18
54.40
39.82
4.57
51.47
38.70
5.02
48.47
37.27
5.53
45.19
35.74
6.11
41.62
34.01
6.76
62 (16.7)
55.62
50.35
4.18
53.08
49.09
4.56
50.52
47.91
5.01
48.10
44.25
5.53
45.71
45.84
6.12
42.28
42.28
6.77
57 (13.9)
54.39
54.39
4.17
52.57
52.57
4.56
50.12
50.12
5.01
47.19
47.19
5.51
45.17
45.17
6.11
42.19
42.19
6.77
72 (22.2)
68.24
35.82
4.32
64.89
34.59
4.72
61.59
33.27
5.18
58.04
31.85
5.70
53.80
30.40
6.28
49.46
28.73
6.93
67 (19.4)
62.05
44.42
4.30
59.30
43.20
4.70
56.18
41.84
5.15
52.79
40.37
5.66
49.21
38.84
6.25
45.24
37.14
6.90
2000
63 (17.2)tt
57.57
42.78
4.28
55.01
41.58
4.67
52.14
40.25
5.12
49.05
38.77
5.63
45.57
37.20
6.21
41.97
35.50
6.87
62 (16.7)
56.53
52.71
4.28
53.95
51.52
4.67
51.65
51.12
5.12
49.59
49.78
5.64
46.26
46.26
6.23
43.14
43.14
6.88
57 (13.9)
56.01
56.01
4.28
54.04
54.04
4.67
51.66
51.66
5.12
49.06
49.06
5.64
46.24
46.24
6.22
43.14
43.14
6.88
72 (22.2)
69.18
37.06
4.45
65.68
35.81
4.84
62.30
34.45
5.30
58.62
32.97
5.82
54.40
31.51
6.41
49.78
29.76
7.06
67 (19.4)
63.10
46.47
4.43
60.12
45.28
4.82
56.89
43.78
5.27
53.36
42.31
5.79
49.61
40.75
6.37
45.50
38.87
7.02
2250
63 (17.2)tt
58.44
44.65
4.41
55.77
43.41
4.80
52.78
42.04
5.24
49.56
40.56
5.76
46.04
38.93
6.34
42.20
37.06
6.99
62 (16.7)
57.39
55.65
4.40
55.86
54.50
4.80
52.98
52.98
5.25
50.47
50.47
5.77
47.44
47.44
6.36
44.15
44.15
7.01
57 (13.9)
57.74
57.74
4.41
55.59
55.59
4.80
53.12
53.12
5.25
50.41
50.41
5.77
47.36
47.36
6.35
44.11
44.11
7.01
t Total and sensible capacities are net capacities based on 25 feet line set at DOE Appendix Ml test levels.
t Sensible capacities shown are based on 80°F (27°C) entering air at the indoor coil. For sensible capacities at other than 80°F (27°C), deduct 835 Btuh (245 kW) per 1000 CFM (480 L/S) of indoor coil air for each degree below 80°F (27°C), or add 835 Btuh
(245 kW) per 1000 CFM (480 L/S) of indoor coil air per degree above 80°F (27°C).
# Detailed cooling capacities are based on indoor and outdoor unit at the same elevation per AHRI standard 210/240-2023. If additional tubing length and/or indoor unit is located above outdoor unit, a slight variation incapacity may occur.
** System kw is total of indoor and outdoor unit kilowatts.
tt At TVA rating indoor condition (75°F edb/63°F ewb). All other indoor air temperatures are at 80°F edb.
NOTE: When the required data falls between the published data, interpolation may be performed. Extrapolation is not an acceptable practice.
EWB - Entering Wet Bulb
24SCA4: Product Data
CONDENSER ONLY RATINGS
SST
°F (-C)
30.0
(-1.1)
35.0
(1.7)
40.0
(4.4)
45.0
(7.2)
50.0
(10.0)
55.0
(12.8)
30.0
35.0
(1.7)
40.0
(4.4)
45.0
(7.2)
50.0
(10.0)
55.0
(12.8)
30.0
(-1.1)
35.0
(1.7)
40.0
(4.4)
45.0
(7.2)
50.0
(10.0)
55.0
(12.8)
CONDENSER ENTERING AIR TEMPERATURES °F (°C)
55.0 (12.8)
65.0 (18.3)
75.0 (23.9)
24SCA418NO030
85.0 (29.4)
95.0 (35.0)
105.0 (40.6)
115.0 (46.1)
TCG
15.10
14.10
13.10
12.20
11.30
10.40
9.50
SDT
70.40
79.80
89.20
98.70
108.30
117.80
127.30
KW
0.80
0.91
1.02
1.15
1.30
1.46
1.65
TCG
16.60
15.60
14.60
13.60
12.70
11.70
10.60
SDT
71.50
80.80
90.30
99.70
109.20
118.70
128.20
KW
0.80
0.91
1.02
1.15
1.30
1.47
1.66
TCG
18.30
17.20
16.10
15.10
14.10
13.00
11.90
SDT
72.50
81.90
91.30
100.80
110.20
119.60
129.10
KW
0.79
0.90
1.02
1.15
1.30
1.47
1.66
TCG
20.00
18.80
17.80
16.70
15.60
14.50
13.30
SDT
73.70
83.00
92.40
101.90
111.20
120.70
130.10
KW
0.78
0.89
1.02
1.15
1.30
1.47
1.67
TCG
21.80
20.70
19.50
18.40
17.30
16.10
14.80
SDT
74.90
84.20
93.50
103.00
112.40
121.70
131.10
KW
0.77
0.89
1.01
1.15
1.30
1.48
1.67
TCG
23.80
22.60
21.40
20.20
19.00
17.70
16.40
SDT
76.10
85.40
94.80
104.20
113.60
122.90
132.10
KW
0.76
0.88
1.00
24SCA424NO030
1.15
1.30
1.48
1.68
TCG
19.34
18.30
17.26
16.17
15.01
13.77
12.40
SDT
73.94
83.52
93.16
102.71
112.14
121.57
130.96
KW
0.98
1.12
1.29
1.47
1.68
1.92
2.20
TCG
21.38
20.26
19.13
17.96
16.72
15.37
13.93
SDT
75.24
84.81
94.38
103.89
113.31
122.73
132.06
KW
0.98
1.13
1.29
1.47
1.68
1.92
2.20
TCG
23.58
22.37
21.16
19.90
18.57
17.13
15.58
SDT
76.62
86.14
95.61
105.11
114.51
123.92
133.17
KW
0.98
1.13
1.29
1.47
1.68
1.92
2.20
TCG
25.95
24.65
23.35
22.00
20.56
19.03
17.39
SDT
78.08
87.51
96.97
106.34
115.79
125.11
134.39
KW
0.98
1.13
1.29
1.47
1.68
1.92
2.19
TCG
28.48
27.09
25.69
24.26
22.72
21.08
19.32
SDT
79.73
89.10
98.46
107.57
116.94
126.28
135.58
KW
0.98
1.13
1.28
1.46
1.67
1.91
2.19
TCG
31.22
29.72
28.21
26.66
25.02
23.26
21.38
SDT
81.37
90.71
100.00
109.14
118.21
127.54
136.81
KW
0.98
1.12
1.28
24SCA43ON0030
1.45
1.65
1.89
2.17
TCG
23.36
22.09
20.86
19.60
18.26
16.80
15.18
SDT
77.76
87.66
97.65
107.75
117.95
128.31
138.89
KW
1.20
1.35
1.53
1.74
1.99
2.28
2.64
TCG
25.77
24.41
23.07
21.70
20.25
18.65
16.96
SDT
79.48
89.29
99.26
109.32
119.51
129.88
140.34
KW
1.21
1.36
1.54
1.75
2.01
2.31
2.67
TCG
28.37
26.91
25.46
23.98
22.39
20.67
18.83
SDT
81.25
91.02
100.97
110.97
121.09
131.37
141.69
KW
1.22
1.37
1.55
1.77
2.02
2.33
2.69
TCG
31.18
29.61
28.04
26.43
24.70
22.83
20.81
SDT
83.07
92.90
102.76
112.64
122.70
132.94
143.15
KW
1.23
1.38
1.56
1.78
2.04
2.35
2.72
TCG
34.21
32.51
30.81
29.05
27.19
25.16
22.98
SDT
85.18
94.87
104.65
114.51
124.32
134.42
144.49
KW
1.24
1.39
1.57
1.80
2.06
2.37
2.74
TCG
37.46
35.63
33.78
31.87
29.86
27.66
25.32
SDT
87.34
96.88
106.60
116.34
125.94
135.92
145.81
KW
1.24
1.40
1.58
1.81
2.07
2.39
2.75
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
15
24SCA4: Product Data
CONDENSER ONLY RATINGS (Continued)
SST
CONDENSER ENTERING AIR TEMPERATURES °F (°C)
°F (°C)
55.0 (12.8)
65.0 (18.3)
75.0 (23.9)
85.0 (29.4)
95.0 (35.0)
105.0 (40.6)
115.0 (46.1)
24SCA436NO030
TCG
30.00
28.36
26.78
25.19
23.53
21.80
19.97
30.0
SDT
75.41
84.88
94.32
103.73
113.17
122.50
131.71
KW
1.39
1.66
1.90
2.14
2.39
2.66
2.98
TCG
33.10
31.32
29.60
27.86
26.04
24.12
22.12
35.0
SDT
76.81
86.28
95.69
105.00
114.37
123.69
132.82
(1
KW
1.41
1.68
1.92
2.16
2.41
2.70
3.03
TCG
36.40
34.50
32.61
30.66
28.71
26.61
24.41
40.0
SDT
78.36
87.68
97.07
106.39
115.63
124.86
133.91
(4.4)
KW
1.43
1.69
1.93
2.17
2.43
2.73
3.07
TCG
39.90
37.87
35.82
33.74
31.53
29.24
26.79
45.0
SDT
80.19
89.25
98.51
107.73
116.97
126.07
135.21
(7.2)
KW
1.46
1.70
1.94
2.18
2.45
2.75
3.12
TCG
43.65
41.42
39.21
36.90
34.51
32.00
29.36
50.0
SDT
81.93
91.11
99.94
109.21
118.32
127.31
136.24
(10.0)
KW
1.47
1.72
1.94
2.19
2.46
2.77
3.14
TCG
47.55
45.19
42.78
40.26
37.63
34.90
32.03
55.0
SDT
84.02
92.82
101.95
110.58
119.68
128.54
137.29
(12.8)
KW
1.48
1.72
1.95
2.19
2.47
2.78
3.15
24SCA442NO030
TCG
33.37
31.78
30.15
28.45
26.69
24.84
22.89
30.0
SDT
69.65
79.17
88.69
98.22
107.73
117.17
126.59
KW
1.86
2.07
2.31
2.58
2.87
3.21
3.58
TCG
36.81
35.06
33.26
31.40
29.46
27.44
25.34
35.0
SDT
70.90
80.29
89.76
99.21
108.68
118.11
127.43
(1
KW
1.87
2.08
2.32
2.59
2.89
3.22
3.60
TCG
40.55
38.61
36.62
34.56
32.45
30.26
27.97
40.0
SDT
72.12
81.47
90.89
100.36
109.73
119.04
128.37
(4.4)
KW
1.88
2.09
2.33
2.60
2.90
3.24
3.62
TCG
44.61
42.45
40.25
37.99
35.72
33.31
30.81
45.0
SDT
73.45
82.79
92.17
101.54
110.71
120.07
129.36
(7.2)
KW
1.88
2.10
2.34
2.61
2.91
3.26
3.64
TCG
49.00
46.61
44.20
41.72
39.18
36.60
33.89
50.0
SDT
74.85
84.11
93.40
102.71
112.06
121.16
130.34
(10.0)
KW
1.89
2.10
2.35
2.62
2.93
3.27
3.66
TCG
53.74
51.14
48.46
45.75
42.97
40.14
37.20
55.
2.08)
SDT
76.40
85.41
94.76
104.00
113.27
122.31
131.40
0
KW
1.89
2.11
2.35
2.63
2.94
3.29
3.68
24SCA448NO030
TCG
38.05
36.11
34.19
32.26
30.26
28.17
25.97
30.0
SDT
70.62
79.92
89.27
98.66
108.06
117.49
126.92
KW
2.25
2.45
2.70
3.00
3.34
3.75
4.21
TCG
41.87
39.78
37.70
35.60
33.43
31.17
28.79
35.0
SDT
72.00
81.22
90.51
99.85
109.22
118.60
127.96
(1
KW
2.26
2.46
2.72
3.02
3.37
3.77
4.24
TCG
46.02
43.75
41.49
39.20
36.85
34.40
31.71
40.0
SDT
73.48
82.63
91.89
101.17
110.47
119.77
129.03
(4.4)
KW
2.26
2.47
2.73
3.04
3.39
3.80
4.27
TCG
50.50
48.04
45.58
43.10
40.54
37.88
35.10
45.0
SDT
75.10
84.21
93.39
102.59
111.81
121.04
130.22
(7.2)
KW
2.27
2.48
2.75
3.06
3.42
3.83
4.30
TCG
55.39
52.67
50.00
47.30
44.52
41.64
38.62
50.0
SDT
76.95
85.90
94.99
104.12
113.25
122.35
131.43
(10.0)
KW
2.27
2.49
2.76
3.08
3.45
3.86
4.34
TCG
60.58
57.73
54.77
51.83
48.81
45.68
42.41
55.0
SDT
78.82
87.79
96.72
105.73
114.73
123.74
132.72
(12.8)
KW
2.27
2.51
2.78
3.10
3.47
3.89
4.37
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
16
24SCA4: Product Data
CONDENSER ONLY RATINGS (Continued)
SST
°F (°C)
CONDENSER ENTERING AIR TEMPERATURES °F (°C)
55.0 (12.8)
65.0 (18.3)
75.0 (23.9)
24SCA46ON0030
85.0 (29.4)
95.0 (35.0)
105.0 (40.6)
115.0 (46.1)
TCG
48.86
46.38
43.92
41.41
38.79
36.02
33.09
30.0
SDT
71.15
80.38
89.65
98.97
108.25
117.49
126.66
KW
2.73
2.99
3.30
3.67
4.10
4.59
5.16
TCG
53.79
51.10
48.43
45.70
42.85
39.87
36.67
35.0
SDT
72.64
81.80
91.01
100.26
109.46
118.64
127.76
(1
KW
2.75
3.01
3.33
3.70
4.14
4.64
5.21
TCG
59.10
56.19
53.28
50.30
47.20
43.95
40.47
40.0
SDT
74.25
83.34
92.49
101.64
110.78
119.88
128.91
(4.4)
KW
2.77
3.04
3.36
3.74
4.18
4.69
5.27
TCG
64.80
61.64
58.47
55.23
51.85
48.30
44.54
45.0
SDT
75.99
84.99
94.06
103.14
112.20
121.20
130.14
(7.2)
KW
2.78
3.06
3.39
3.78
4.23
4.74
5.32
TCG
70.91
67.48
64.02
60.48
56.80
52.92
48.82
50.0
SDT
77.86
86.77
95.77
104.76
113.70
122.61
131.43
(10.0)
KW
2.79
3.08
3.42
3.81
4.27
4.79
5.37
TCG
77.45
73.70
69.92
66.05
62.03
57.81
53.36
55.0
SDT
79.90
88.70
97.59
106.47
115.30
124.08
132.77
(12.8)
KW
2.81
3.10
3.44
3.85
4.31
4.83
5.42
KW - Outdoor Unit Kilowatts Only.
SDT -Saturated Temperature Leaving Compressor (°F)
SST -Saturated Temperature Entering Compressor (°F/°C)
TCG -Gross Cooling Capacity (1000 Btuh)
KW - Outdoor Unit Kilowatts Only.
SDT -Saturated Temperature Leaving Compressor (°F)
SST -Saturated Temperature Entering Compressor (°F/°C)
TCG -Gross Cooling Capacity (1000 Btuh)
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
17
24SCA4: Product Data
GUIDE SPECIFICATIONS
GENERAL
System Description
Outdoor -mounted, air-cooled, split -system air conditioner unit suitable
for ground or rooftop installation. Unit consists of a hermetic
compressor, an air-cooled coil, propeller -type condenser fan, and a
control box. Unit will discharge supply air upward as shown on contract
drawings. Unit will be used in a refrigeration circuit to match up to a
packaged fan coil or coil unit.
Quality Assurance
— Unit will be rated in accordance with the latest edition of AHRI
Standard 210/240.
— Unit will be certified for capacity and efficiency, and listed in AHRI
directory.
— Unit construction will comply with latest edition of ANSI/
ASHRAE and with NEC.
— Unit will be constructed in accordance with UL standards and will
carry the UL label of approval. Unit will have c-UL-us approval.
— Unit cabinet will be capable of withstanding Federal Test Method
Standard No. 141 (Method 6061) 500-hr salt spray test.
— Air-cooled condenser coils will be leak tested at 150 psig and
pressure tested at 470 psig.
— Unit constructed in IS09001 approved facility.
Delivery, Storage, and Handling
— Unit will be shipped as single package only and is stored and
handled per unit manufacturer's recommendations.
Warranty (for inclusion by specifying engineer)
— U.S. and Canada only.
PRODUCTS
Equipment
Factory assembled, single piece, air-cooled air conditioner unit.
Contained within the unit enclosure is all factory wiring, piping,
controls, compressor, refrigerant charge Puron@ (R-410A), and special
features required prior to field start-up.
Unit Cabinet
— Unit cabinet will be constructed of galvanized steel, bonderized,
and coated with a powder coat paint.
Fans
— Condenser fan will be direct -drive propeller type, discharging air
upward.
— Condenser fan motors will be totally enclosed, 1-phase type with
class B insulation and permanently lubricated bearings. Shafts will
be corrosion resistant.
— Fan blades will be statically and dynamically balanced.
— Condenser fan openings will be equipped with coated steel wire
safety guards.
Air-cooled, split -system air conditioner
24SCA4
1-1/2 to 5 nominal tons
Compressor
— Compressor will be hermetically sealed.
— Compressor will be mounted on rubber vibration isolators.
Condenser Coil
— Condenser coil will be air cooled.
— Coil will be constructed of aluminum fins mechanically bonded to
copper or aluminum tubes which are then cleaned, dehydrated, and
sealed.
Refrigeration Com op nents
— Refrigeration circuit components will include liquid -line shutoff
valve with sweat connections, vapor -line shutoff valve with sweat
connections, system charge of Puron (R-410A) refrigerant, and
compressor oil.
— Unit will be shipped with filter drier for Puron (R-410A)
refrigerant.
Operating Characteristics
— The capacity of the unit will meet or exceed Btuh at a suction
temperature of °F/°C. The power consumption at full load
will not exceed kW.
— Combination of the unit and the evaporator or fan coil unit will
have a total net cooling capacity of Btuh or greater at
conditions of CFM entering air temperature at the evaporator
at °FPC wet bulb and °FPC dry bulb, and air
entering the unit at °F/°C.
— The system will have a SEER2 of Btuh/watt or greater at
DOE conditions.
Electrical Requirements
— Nominal unit electrical characteristics will be v, single
phase, 60 Hz. The unit will be capable of satisfactory operation
within voltage limits of v to V.
— Nominal unit electrical characteristics will be v, three phase,
60 Hz. The unit will be capable of satisfactory operation within
voltage limits of v to V.
— Unit electrical power will be single point connection.
— Control circuit will be 24v.
Special Features
— Refer to section of this literature identifying accessories and
descriptions for specific features and available enhancements.
C 2022 Carrier. All rights reserved.
Edition Date: 06/22
7Catalog No: 24SCA4-01PD
Replaces: New
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
18