The 38YCG Outdoor Section of
Split-System Heat Pumps is designed
for quiet, reliable heating during the
winter and cooling during the summer.
With SEER ratings up to 11.5 and HSPF
from 6.8 to 7.6, this heat pump system
provides economy of operation through
energy conservation when used with
components designated by the
manufacturer. The 38YCG recovers
heat for indoor comfort from outdoor air
during the heating season and, by
automatically reversing the refrigerant
system, removes indoor heat and excess
humidity during the cooling season.
All models are listed with UL (U.S. and
Canada), CEC, and ARI.
FEATURES
Electrical Range — All sizes of the
38YCG are offered in single phase 208–
230v.
Size Range — The 38YCG is available
in 7 nominal sizes from 018 through 060
to meet the needs of residential and light
commercial applications.
Compressor — Designed specifically
for heat pump duty, with energy
efficiency during heating and cooling
operation. Each compressor is
hermetically sealed against
contamination to assure long life and
dependable performance, internally
sprung (units with reciprocating
compressor) and externally mounted on
rubber isolators for quiet operation.
Continuous compressor operation is
approved down to –30°F (–34.4°C)
in the heating mode, and down to 55°F
(12.8°C) in the cooling mode (unless
equipped for low-ambient operation).
(See heating and cooling performance
tables.)
Copyright 2003 Carrier CorporationForm 38YCG-4PD
Page 2
2
Reliable Standard Components —
Includes a suction-tube accumulator that
reduces the amount of liquid refrigerant
that reaches the compressor; a lowpressure switch to stop the compressor if
refrigerant charge is lost; a crankcase
heater on 036 and 060 sizes to keep
compressor oil warm and free of
refrigerant for maximum lubricity; an
internal compressor relief valve for highpressure protection.
Discharge Muffler — Minimizes
low frequency sound and pressure
pulsation generated by compressor
discharge gas.
Defrost Control Board — Incorporates
a defrost relay, defrost timer, and
low-voltage terminations. The defrost
control is a time and temperature
initiation/termination control which
includes 3 field-selectable time periods
of 30, 50, and 90 minutes.
Weather-Protective Cabinet — The
casing steel is protected with a
galvanized coating and treated with a
layer of zinc phosphate. A modified
polyester powder coating is then applied
and baked on, providing each unit with a
hard, smooth finish that will last for
many years.
All screws on cabinet exterior are coated
for a long-lasting, rust-resistant, quality
appearance.
Heavy Duty Inlet Grille —The
WeatherArmor™ coil protector, made of
a coated steel wire grid with vertical 3/8in. spacing, is designed to help protect
the coil from inclement weather,
vandalism, and incidental damage. It
provides protection while not restricting
airflow and maintaining ease of coil
inspection and cleaning.
Unit Design — All units are equipped
with totally enclosed fan motors for
greater reliability under adverse weather
conditions. The large, wraparound coil
uses copper tube and enhanced
aluminum fin and is designed for
optimum heat transfer during heating
and cooling. The vertical air discharge
carries the sound and air up and away
from adjacent patio areas and foliage.
Coil can be cleaned with a common
garden hose.
External Service Valves — Both
service valves are brass, front seating
type. Valves are externally located so
refrigerant tube connections can be made
quickly and easily. Each valve has a
service port for ease of checking
operating refrigerant pressures. The
38YCG has sweat field connections.
Additional Standard Features —
Included as standard on this model is
compressor protection through factoryinstalled accumulator and low-pressure
switch.
Limited Warranty — Standard 5-year
limited warranty on unit parts and 5-year
limited warranty on compressor.
Air Discharge
Air Qty (CFM)
Motor HP
Motor RPM (60 Hz)
CONDENSER COIL
Face Area (Sq Ft)
Fins per In.
Rows
Circuit
CONNECTION (In. ID)
Vapor
Liquid
REFRIGERANT TUBES*
(In. OD)
Vapor (0–50 Ft Tube Length)
Vapor (Max Diameter for
Long-Line Applications)
Liquid (0–50 Ft Tube Length)
Liquid (For Long-Line
Applications)
* Tube sizes are for lengths up to 50 ft. For lengths over 50 ft and/or 20 ft vertical differential, consult Residential Split-Systems Long-Line Application Guideline.
NOTE: See unit Installation Instructions for proper installation.
32323333/3434/3632/3432/34
127143153/157176/185195/197219237
ReciprocatingScroll/ReciprocatingScroll
R-22
4.694.755.636.387.889.25/9.3810.50/10.25
Propeller Type, Direct Drive
1900190023003000300033003300
1/121/121/41/41/41/41/4
1100112511251100110011001100
9.109.1112.4214.818.522.4022.40
20252020202025
111 1 111
233 3 445
5/85/83/43/47/87/87/8
5/85/83/43/47/87/81-1/8
3/43/47/87/81-1/81-1/81-1/8
Piston
Vertical
Sweat
3/8
3/8
3/8
UNIT
SIZESERIES
018
024
030
036
036
042
048
060
*Piston listed is for any approved coil combination.
CHARGING SUBCOOLING (TXV-TYPE EXPANSION DEVICE)
036 (33)
036 (34)
048-32/34
METERING DEVICE
OUTDOOR
PISTON
324052
324963
335570
336176
345770
34, 366378
32/3473/7088/86
32, 347696
UNIT
SIZE
018
024
030
042
060
REQUIRED
SUBCOOLING (°F)
10/15
10
INDOOR
PISTON*
3
Page 4
Accessories
ORDERING NUMBERDESCRIPTION
KAATD0101TDR
KSALA0201R22
32LT660004 (RCD)†
HC34GE232 (RCD)
HC40GE232 (RCD)
KAAFT0101AAA‡
KHAIR0101AAA‡
Standard
KSACY0101AAA
KSAHS1001AAA
KSAHS1101AAA
KSAHS1501AAA
KSAHS1601AAA
KAACS0201PTC
Standard
KAACH1001AAA
KAACH1201AAA
KSASH1101COP
KSASH1201COP
KSASH1901CYL
KSASH2001CYL
KSASH2001BRL
KSASH0601COP
KSASH2101COP
KHAOT0301FST
KHAOT0201SEC
KSATX0601HSO††
KSATX0701HSO††
KHATX0201RPB
KHATX0301RPB
KHATX0401RPB
KHATX0501RPB
KHATX0601RPB
KHATX0701RPB
KHAHI0101HPS
P504-8083S (RCD)
P504-8163S (RCD)
KHALS0401LLS††
* Isolation relay required.
† Fan Motor with ball bearings required.
‡ Use with low-ambient controller.
†† Addition of these accessories requires capacitor and relay compressor start assist on all reciprocating compressor applications.
Control — Non-Programmable/Programmable Thermostat with Humidity Control (For
Outdoor Air Temperature Sensor
Backplate for Non-Programmable Thermostat
Backplate for Programmable Thermostat
Backplate for Builder’s Thermostat
Thermostat Conversion Kit (4 to 5 wire) — 10 Pack
4
Page 5
Accessory usage guideline
REQUIRED FOR
LOW-AMBIENT
ACCESSORY
Crankcase Heater
Evaporator Freeze Thermostat
Accumulator
Compressor Start Assist
Capacitor and Relay
Low Ambient Controller,
MotorMaster® Control,
or
Low-Ambient Pressure Switch
Wind Baffle
Coastal Filter
Unit Risers
Liquid-Line Solenoid Valve
or
Hard Shutoff TXV
Ball Bearing Fan Motor
* For tubing line sets between 50 and 175 ft, refer to the Residential Split-System Long-Line Application Guideline.
‡ Required for Low-Ambient Controller (full modulation feature) and MotorMaster Control only.
APPLICATIONS
(Below 55°F)
Ye sYe s
Ye sN o
NoNo
Ye sYe s
Ye sN o
See Low-Ambient InstructionsNo
NoNo
RecommendedNo
No
Ye s ‡No
REQUIRED FOR
LONG-LINE
APPLICATIONS*
(Over 50 Ft)
See Long-Line
Application
Guideline
Accessory description and usage (Listed alphabetically)
1. Ball Bearing Fan Motor
A fan motor with ball bearings which permits speed reduction while maintaining bearing lubrication.
SUGGESTED USE: Required on all units where low-ambient controller (full modulation feature) or MotorMaster® Control has been added.
2. Compressor Start Assist — Capacitor and Relay
Start capacitor and start relay gives hard” boost to compressor motor at each start-up.
SUGGESTED USE: Installations where interconnecting tube length exceeds 50 ft.
3. Compressor Start Assist — PTC
Solid-state electrical device which gives a soft” boost to the compressor at each start-up.
SUGGESTED USE: Installations with marginal power supply.
4. 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 chance of refrigerant slugging. May or may not include a thermostat control.
SUGGESTED USE: When interconnecting tube length exceeds 50 ft.
5. Cycle Protector
Solid-state timing device which prevents compressor rapid recycling. Control provides an approximate 5-minute delay after power to the compressor has been interrupted
for any reason, including normal room thermostat cycling.
SUGGESTED USE: Installations in areas where power interruptions are frequent.
6. Evaporator Freeze Thermostat
An SPST temperature actuated switch which stops unit operation when evaporator reaches freeze-up conditions.
SUGGESTED USE: All units where Low-Ambient Controller has been added.
7. Filter Drier—Bi-Flow
A device for removing contaminants from refrigerant circulating in a heat pump system: 2-direction flow.
SUGGESTED USE: All field-connected split-system heat pumps.
8. High-Pressure Switch
Auto reset SPST switch activated by refrigerant pressure on high side of refrigerant circuit. Cycles compressor off if refrigerant pressure rises to 426 ± 10 psig
and resets at 320 ± 20 psig. Provides protection against compressor damage due to loss of outdoor airflow.
SUGGESTED USE: Installations exposed to very dirty” outdoor air.
9. Isolation Relay
An SPDT relay which switches the low-ambient controller out of the outdoor fan motor circuit when the heat pump switches to heating mode.
SUGGESTED USE: All heat pumps where Low-Ambient Controller has been added.
Installations where outdoor design temperature exceeds 105°F (40.6°C).
Installations with hard shutoff expansion valve on indoor coil.
Units installed with Low-Ambient Controller.
Units installed with Liquid-Line Solenoid Valve.
Replacement installations with rapid pressure balance (RPB) expansion valve on indoor coil.
When unit will be operated below 55°F (12.8°C) outdoor air temperature. (Use with Low-Ambient Controller.)
Where user is likely to play” with the room thermostat.
All commercial installations.
Installations where interconnecting tube length exceeds 50 ft.
High-rise applications.
Installations where condenser inlet air temperature exceeds 125°F.
5
Page 6
Accessory description and usage (continued)
10. Liquid-LIne Solenoid Valve (LSV)
An electrically operated shutoff valve to be installed at the outdoor unit and which stops and starts refrigerant liquid flow in response to compressor
operation. Maintains a column of refrigerant liquid ready for action at next compressor operation cycle.
NOTE: Compressor Start Assist — Capacitor and Relay must be used also on reciprocating compressors.
SUGGESTED USE: For improved system performance in air conditioners for certain combinations of indoor and outdoor units. Refer to ARI Unitary Directory.
11. Low-Ambient Pressure Switch
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 psig to 225 psig). The control will maintain working head pressure at low-ambient temperatures down to 0°F when properly installed.
SUGGESTED USE: Cooling operation at outdoor temperatures below 55°F (12.8°C).
12. MotorMaster® Control
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 –20°F, it maintains condensing temperature at 100°F ± 10°F.
SUGGESTED USE: Cooling operation at outdoor temperatures below 55°F.
13. Outdoor Air Temperature Sensor
A device that allows the temperature at a remote location (outdoors) to be displayed on the thermostat.
SUGGESTED USE: All Carrier programmable thermostats.
14. Outdoor Thermostat
An SPDT temperature-actuated switch which turns on supplemental electric heaters when outdoor air temperature drops below set point.
SUGGESTED USE: Heat pump installations with multiple-stage supplemental heaters.
15. Secondary Outdoor Thermostat
An SPDT temperature actuated switch which turns on third-stage of supplemental electric heaters when outdoor air temperature drops below the second-stage set point.
SUGGESTED USE: Heat pump installations where 3-stage operation of supplemental heaters is desired.
16. Sound Hood
Wraparound sound reducing cover for the compressor. Reduces the sound level by about 2 dBA.
SUGGESTED USE: Unit installed closer than 15 ft to quiet areas—bedrooms, etc.
17. Thermostatic Expansion Valve (TXV) Bi-Flow
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. Both hard shutoff and RPB valves are available. Do not use hard shutoff TXV with Liquid-Line Solenoid
Valve. Hard shutoff TXV requires Compressor Start Assist — Capacitor and Relay on units with single-phase reciprocating compressors.
SUGGESTED USE: For improved system performance in cooling mode for certain combinations of indoor and outdoor units. Refer to ARI Unitary Directory.
18. Time-Delay Relay
An SPST delay relay which briefly continues operation of the indoor blower motor to provide additional cooling after the compressor cycles off.
SUGGESTED USE: For improved efficiency ratings for certain combinations of indoor and outdoor units. Refer to ARI Unitary Directory.
In certain long-line applications. Refer to the Residential Split-System Long-Line Application Guideline.
All commercial installations.
Unit installed between 2 houses less than 10 ft apart.
Required for use on all zoning systems.
Required for use on all zoning systems.
SOUND POWER (A-weighted, non-pure tone corrected.)
NOTE: Tested in accordance with ARI standard 270.95. (Not listed with ARI.)
SOUND LEVEL
(dBA)
1252505001000200040008000
OCTAVE BAND CENTER FREQUENCY (Hz)
6
Page 7
Electrical data
60°C
OUTDOOR
UNIT
018-32
024-3261.011.40.514.81414504520
030-3375.013.71.418.51414404030
036-33105.018.01.423.91212505035
036-3486.017.21.422.91212555235
042-34115.024.41.431.9810975950
042-36127.022.91.430.01010676350
048-32140.024.41.431.988909050
048-34131.022.01.429.08101076650
060-32165.030.81.439.988757060
060-34148.030.81.439.988757060
* Permissible limits of the voltage range at which unit will operate satisfactorily. Operation outside these limits may result in unit failure.
† If wire is applied at ambient greater than 30°C (86°F), consult Table 310-16 of the NEC (ANSI/NFPA 70). The ampacity of nonmetallic-sheathed cable
(NM), trade name ROMEX, shall be that of 60°C (140°F) conductors, per the NEC (ANSI/NFPA 70) Article 336-26.
If other than uncoated (non-plated), 60° or 75°C (140° or 167°F) insulation, copper wire (solid wire for 10 AWG and smaller, stranded wire for larger than
10 AWG) is used, consult applicable tables of the NEC (ANSI/NFPA 70).
‡ Length shown is as measured 1 way along the wire path between the unit and the service panel for voltage drop not to exceed 2%.
** Time-delay fuse.
NOTE: Control circuit is 24v on all units and requires external power source. Copper wire must be used from disconnect to unit. All motors/compressors contain
internal overload protection.
FLA— Full Load Amps
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps
RLA — Rated Load Amps
V/PH
60 Hz
208-230/1253197
OPERATING VOLTS*COMPRESSOR
49.09.80.512.81414707020
FAN
FLAMCA
MIN
WIRE
SIZE†
75°C
MIN
WIRE
SIZE†
60°C
MAX
LENGTH
(Ft)‡
75°C
MAX
LENGTH
(Ft)‡
MAX FUSE**
OR CKT
BKR AMPSMaxMinLRARLA
.
This heat pump can be part of a Comfort Heat Pump System which can
provide higher heating supply air temperatures, as well as up to 30 times
more humidity removal in cooling mode. A Comfort Heat Pump System
requires the use of a Variable-Speed Fan Coil with Thermidistat Control.
HEAT PUMP SYSTEM
7
Page 8
Dimensions—38YCG
A03015
PAD DIMENSIONS
MINIMUM MOUNTING
DIMENSIONS (IN.)
0183222-1/225-15/163-3/165/83-11/1618-1/819-3/421-5/814-3/818-7/822-1/161151222-1/2 X 22-1/2
SIZESERIESABCDEFGHJ KLMNP
UNIT
0243222-1/225-15/163-3/165/83-11/1618-1/819-3/421-5/814-3/818-7/822-1/161051322-1/2 X 22-1/2
0303322-1/233-15/163-3/163/43-11/1618-1/819-3/421-5/814-3/818-7/822-1/1612-1/2121422-1/2 X 22-1/2
03633, 343027-15/163-3/163/46-1/223-1/227-1/429-1/82026-3/829-9/1616-3/4151230 X 30
04234, 363033-15/163-1/47/86-1/223-1/227-1/429-1/82026-3/829-9/161515-3/413-1/230 X 30
04832, 343039-15/163-1/47/86-1/223-1/227-1/429-1/82026-3/829-9/161515-3/415-1/230 X 30
06032, 343039-15/163-1/47/86-1/223-1/227-1/429-1/82026-3/829-9/1613-3/415-5/81530 X 30
*Ratings are net values reflecting the effects of circulating fan heat. Supplemental electric heat is not included. Ratings are based on:
Cooling Standard:80°F (27°C) db 67°F (19°C) wb indoor entering air temperature and 95°F (35°C) db air entering outdoor unit.
High-Temperature Heating Standard:70°F (21°C) db indoor entering air temperature and 47°F (8°C) db 43°F (6°C) wb air entering outdoor unit.
Low-Temperature Heating Standard:70°F (21°C) db indoor entering air temperature and 17°F (–8°C) db 15°F (–11°C) wb air entering outdoor unit.
† In most cases, only 1 method should be used to achieve TDR function. Using more than 1 method in a system may cause degradation in performance.
Use either the accessory Time-Delay Relay KAATD0101TDR or a furnace equipped with TDR.
‡ TXV must be hard shutoff type.
** Outdoor section/indoor section combination tested in accordance with DOE test procedures for heat pumps. Ratings for other combinations are determined
under DOE computer simulation procedures.
COP — Coefficient of Performance
EER — Energy Efficiency Ratio
HSPF — Heating Seasonal Performance Factor
SEER — Seasonal Energy Efficiency Ratio
TC — Total Capacity (Btuh)
TDR — Time-Delay Relay
TXV — Thermostatic Expansion Valve
38YCG060-32, 34 Outdoor Section With F(A,B)4(A,B)N(F,B)060 Indoor Section
72
63.8
67
1800
2000
2200
Indoor
SectionSize
CC5A/CD5AA0600.960.94CK5A/CK5BX0601.000.92
CC5A/CD5AW0600.990.96
CE3AA0601.000.96CC5A/CD5AA0600.960.92
CK3BA0600.960.92CC5A/CD5AW0600.980.92
CK5A/CK5BA0600.960.92CE3AA0600.990.92
CK5A/CK5BT0600.960.92CK3BA0600.980.93
CK5A/CK5BX0600.990.95CK5A/CK5BA0600.980.93
F(A,B)4(A,B)N(F,B,C)
FB4(A,B)NB0701.011.01CK5A/CK5BX0601.000.92
FC4(B,C)N(F,B)0601.000.96
FC4(B,C)NB0701.011.01CC5A/CD5AA0600.960.91
FG3AAA0600.970.94CC5A/CD5AW0600.980.92
FK4(C,D)NB0061.000.94CE3AA0600.990.91
COILS + 58CV(A,X)110-22 VARIABLE-SPEED FURNACE
CC5A/CD5AA0600.960.92CK5A/CK5BA0600.980.93
CE3AA0600.990.92CK5A/CK5BT0600.980.93
CK3BA0600.980.93CK5A/CK5BX0601.000.91
CK5A/CK5BA0600.980.93———
CK5A/CK5BT0600.980.93
63††
62
57
72
67
63††
62
57
72
67
63††
62
57
58.2
54.1
53.2
52.0
64.4
58.8
54.7
54.0
53.5
64.9
59.3
55.1
54.8
54.7
NOTE: When the required data fall between the published data, interpolation may be performed. Extrapolation is not an acceptable practice.
* Detailed cooling capacities are based on indoor and outdoor unit at same elevation per ARI standard 210/240-94. If additional tubing length and/
or indoor unit is located above outdoor unit, a slight variation in capacity may occur.
† Total and sensible capacities are net capacities. Blower motor heat has been subtracted.
‡ 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).
** System kW is total of indoor and outdoor unit kilowatts.
†† At TVA rating indoor condition (75°F edb/63°F ewb). All other indoor air temperatures are at 80°F edb.
EWB — Entering Wet Bulb
31.9
41.1
39.8
49.8
52.0
33.1
43.1
41.7
52.4
53.5
34.2
45.0
43.5
54.5
54.7
5.67
5.55
5.46
5.44
5.42
5.79
5.67
5.58
5.56
5.55
5.90
5.78
5.69
5.68
5.68
60.9
55.5
51.5
50.7
50.0
61.5
56.0
52.1
51.6
51.4
62.0
56.5
52.4
52.6
52.5
Multipliers for Determining the Performance With Other Indoor Sections
NOTE: When the required data fall between the published data, interpolation may be performed. Extrapolation is not an acceptable practice.
† The Btuh heating capacity values shown are net integrated values from which the defrost effect has been subtracted. The Btuh heating from sup-
plement heaters should be added to those values to obtain total system capacity.
‡ The kW values include the compressor, outdoor fan motor, and indoor blower motor. The kW from supplement heaters should be added to these
values to obtain total system kilowatts.
EDB — Entering Dry Bulb
Total
Power
Capacity
MBtuh
Total
Power
Capacity
MBtuh
Total
Power
Capacity
MBtuh
Total
Power
Capacity
MBtuh
Total
Power
Capacity
MBtuh
Total
Power
Capacity
MBtuh
38YCG060-32, 34 Outdoor Section With F(A,B)4(A,B)N(F,B)060 Indoor Section
66.6
66.6
5.12
58.1
58.1
4.85
46.2
50.7
4.67
39.9
44.9
4.51
36.0
39.4
4.37
31.8
34.6
4.24
27.6
27.9
28.3
27.1
27.5
27.9
26.5
27.0
27.4
4.31
4.38
4.38
4.45
4.52
4.53
4.59
4.66
35.0
35.4
34.3
34.7
35.1
33.9
34.3
34.7
32.2
32.5
31.5
31.9
32.2
31.2
31.5
31.9
4.43
4.49
4.54
4.59
4.65
4.71
4.76
4.82
39.9
40.2
39.1
39.5
39.9
38.7
39.2
39.5
36.3
36.7
35.6
36.0
36.4
35.3
35.7
36.0
4.55
4.60
4.68
4.72
4.78
4.87
4.91
4.96
45.4
45.8
44.5
44.9
45.4
44.1
44.5
44.9
40.3
40.7
39.5
39.9
40.3
39.2
39.5
39.9
4.70
4.74
4.85
4.88
4.93
5.05
5.08
5.11
51.2
51.7
50.2
50.7
51.2
49.7
50.2
50.6
46.6
47.0
45.7
46.1
46.5
45.2
45.7
46.1
4.88
4.91
5.05
5.07
5.10
5.25
5.27
5.30
58.7
59.2
57.4
58.0
58.5
56.8
57.3
57.8
58.7
59.2
57.4
58.0
58.5
56.8
57.3
57.8
5.13
5.16
5.32
5.33
5.36
5.54
5.54
5.56
Multipliers for Determining the Performance With Other Indoor Sections
Heating
CapacityPowerCapacityPower
Indoor
SectionSize
COILS + 58CV(A,X)135-22 VARIABLE-SPEED FURNACE
0601.001.00CK5A/CK5BA0600.970.94
COILS + 58CV(A,X)155-22 VARIABLE-SPEED FURNACE
CE3AA0600.970.97
66.4
66.2
66.1
66.3
66.1
65.5
66.1
66.0
66.4
66.2
66.1
66.3
66.1
65.5
66.1
66.0
Heating
Total
Power
5.47
5.42
5.40
5.70
5.66
5.63
5.94
5.93
5.88
Capacity
MBtuh
71.9
71.1
70.4
72.1
70.9
69.9
72.2
72.3
70.8
71.9
71.1
70.4
72.1
70.9
69.9
72.2
72.3
70.8
Total
Power
5.69
5.61
5.57
5.97
5.84
5.78
6.26
6.20
6.08
System Design
1. Intended for outdoor installation with free air inlet and outlet. Outdoor fan external static pressure available is less than 0.01-in. wc.
2. Minimum outdoor operating air temperature for cooling mode without low-ambient operation accessory is 55°F (12.8°C).
3. Maximum outdoor operating air temperature for cooling mode is 125°F (51.7°C).
4. Minimum outdoor operating air temperature for heating mode is –30°F (–34.4°C).
5. Maximum outdoor operating air temperature for heating mode is 66°F (18.9°C).
6. For reliable operation, unit should be level in all horizontal planes.
7. Maximum elevation of indoor coil above or below base of outdoor unit is: indoor coil above = 50 ft, indoor coil below = 150 ft. (See items 8 and 9 following.)
8. For interconnecting refrigerant tube lengths between 50 and 175 ft and/or 20 ft vertical differential, consult the Residential Split-System Long-Line Application
Guideline available from equipment distributor.
9. If any refrigerant tubing is buried, provide a minimum 6-in. vertical rise to the valve connections at the unit. Refrigerant tubing lengths up to 36 in. may be
buried without further consideration. For buried refrigerant tubing lengths greater than 36 in., consult your local distributor.
10. Use only copper wire for electric connection at unit. Aluminum and clad aluminum are not acceptable for the type of connector provided.
11. Mixmatches of indoor coil capacity more than 1 size larger than outdoor unit capacity may result in inadequate indoor comfort.
27
Page 28
Guide specificationsAir-Cooled, Split-System
Heat Pump
38YCG
1-1/2 To 5 Tons Nominal
GENERAL
System Description
Outdoor-mounted, air-cooled, split-system heat pump 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
ARI Standard 240.
Unit will be certified for capacity and efficiency, and listed
in the latest ARI 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
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 300 psig.
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 heat pump unit.
Contained within the unit enclosure will be all factory wiring,
piping, controls, compressor, refrigerant charge (R-22), 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 steel wire
safety guards.
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 tubes which are then cleaned, dehydrated, and
sealed.
Refrigeration Components
Refrigeration circuit components will include liquid tube
shutoff valve with sweat connections, suction tube shutoff
valves with sweat connections, system charge of refrigerant
R-22, compressor oil, accumulator, and reversing valve.
Operating Characteristics
The capacity of the unit will meet or exceed ____ Btuh at a
suction temperature of ____ F. 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 ____ F wet bulb and ____ F dry bulb, and air
entering the unit at ____ F.
The system will have an SEER of ____ Btuh/watt or greater
at DOE conditions.
Electrical Requirements
Nominal unit electrical characteristics will be ____ v,
1 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.
Carrier Corporation • Indianapolis, IN 462319-03
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book1 4Page 28Catalog No. 523-80091Printed in U.S.A.PC 101Form 38YCG-4PD
Tab5a 5a
Replaces: 38YCG-3PD
Loading...
+ hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.