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38AR/40RM

Commercial Air-Cooled Split System
Electric Cooling Units
HCFC R-22 Refrigerant

6.0 to 25.0 Nominal Tons

38ARD - Dual Circuit
38ARZ - Single Circuit

The 38ARZ/ARD condensing units with scroll compressors match Carrier’s 40RM indoor-air handlers for a wide selection of dependable commercial cooling solutions.

Carrier’s air-cooled split systems:
  • Provide a logical solution for commercial needs
  • Have a rugged, dependable construction

The 40RM is your best choice for packaged air handlers. Model 40RM units have direct-expansion coils. All models offer excellent fan performance, a unique combination of indoor air quality features, easy installation, and affordable prices. Their versatility and state-of-the-art features will provide economical performance now and in the future.

38ARD/ARZ Features

  • Up to 11.0 EER
  • Constructed for long life
  • Efficient Operation
  • Controls for performance dependability
  • Innovative Carrier 40RM packaged air handlers are custom matched to 38AR condensing units
  • Indoor-air quality (IAQ) features
  • Rugged dependability
  • Coil flexibility
  • Easier installation and service

40RM Features

  • Multiposition design can be installed horizontally or vertically without modification
  • Standard double skin units for a better indoor air quality (IAQ)
  • Polyester powder painted zinc coated steel panels provide additional protection against rusting & discoloration in areas with high UV factor
  • High-static design meets a wider range of applications than competitive packaged air handler lines
  • Economizer accessory provides ven- tilation air and ``free'' cooling
  • Cooling coils with mechanically- bonded fins provide peak heat transfer
  • Standard factory-installed thermo- static expansion valves(TXVs) on 40RM units
  • Standard sloped drain pans
  • 1" WASHABLE filters having frontal access to remove them
  • Easy installation and maintenance; removal of one side panel allows access to serviceable  components; external piping connections

38ARD/ARZ Options

  • Enviro-Shield™ condenser options offer pre-coated coils that provide protection in mild coastal environments. Several options are available to match coil protection to site conditions for optimum durability. See table below. Consult your Carrier representative for further information.
  • Non-fused disconnect switch to remove power locally at the condensing unit. This switch also includes a power lockout capability to protect the service person. This lockout switch saves the service person time and effort because there is no need to access a distant disconnect switch while servicing the unit.
  • Carrier’s line of thermostats provide both programmable and non-programmable capability with the new Debonair® line of commercial programmable thermostats. The Commercial Electronic thermostats provide 7-day programmable capability for economical applications.
  • PremierLink™ Controller is a field retrofit split system control compatible with the Carrier Comfort Network (CCN) and other building automation systems (BAS). This control is designed to allow users the access and ability to change factory-defined settings thus expanding the function of the standard unit.

Condenser Coil Options

Copper Tube Coils with Enviro-Shield Option Environment
Standard Mild Coastal Moderate Coastal
Aluminum fins (standard coils) X    
Aluminum fins, pre-coated   X  
Copper fins     X

 

40RM Options

  • One-row steam coil has copper tubes and aluminum fins. The Inner Distributing Tube (IDT) design provides unifor m temperatures acrossthe coil face.The steam coil hasa broad operating pressure range; up to 175 psig (1207 kPag) at 400 F (204.4 C) and up to 300 psig (2069 kPag) at 300 F (148.9 C). The IDT steam coils are especially suited to applications where sub-freezingair enters the unit.
  • Electric resistance heat coils have an open-wire design and are mounted in a rigid frame. Safety cutouts for high temperature conditions are standard. Terminal block for single-point power connection is included.
  • Economizer (enthalpy controlled) provides ventilation air and "free" cooling if outside ambient temperature and humidity are suitable. Can also be used with CO2 sensors to help meet indoor air quality requirements.
  • Discharge plenum directs the air discharge directly into the occupied space; integral horizontal and vertical louvers enable redirection of airflow. Accessory is available unpainted or painted. Field assembly required.
  • Standard units available from the factory are in Double skin.
  • Return-air grille provides a protective barrier over the return-air opening and givesa finished appearance to units installed in the occupied space. Accessory is available unpainted or painted.
  • Subbase provides a stable, raised platform and room for condensate drain trap connection for vertical floor-mounted units. Accessory is available unpainted or painted.
  • Over head suspension package includes necessary brackets to support units in horizontal ceiling installations.
  • CO2 sensors can be used in conjunction with the economizer accessory to help meet indoor air quality requirements.The sensor signals the economizer to open when the CO2 level in the space exceeds the set point. A Carrier Comfort System programmable thermostat can be used to override the sensor if the outside air temperature is too high or too low.
  • Carrier's line of thermostats provide both programmable and non-programmable capability with the new Debonair line of commercial programmable thermostats,the TEMP System controls offer communication capability with staged heating and cooling, the Commercial Electronic thermostats provide 7-day programmable capability for economical applications,while the Non-Programmable thermostatsoffer a multitude of stagedheating and cooling subbase options.
  • Condensate drain trap includes an overflow shutoff switch that can be wired to turn off the unit if the trap becomes plugged. Kit also includes a wire harness that can be connected to an alarm if desired. The transparent trap is designed for easy service and maintenance.

38AR Weights & Dimensions

Unit
38AR
Nominal Cooling
(Tons)
Dimensions (mm) Net Weight
(kg)
Length Width Height
07 6.0 1504 1157 992 154
08 7.5 1504 1157 992 192
12 10.0 1504 1157 992 213
14 12.5 1844 1124 1058 357
16 15.0 1844 1124 1058 386
24 20.0 1844 1124 1058 397
28 25.0 2451 1380 1282 580

 

40RM Weights

Unit
40RM
Nominal Capacity
(Tons
Operating Weight
(Kg)
07 6 203
08 7.5 205
12 10 214
14 12.5 364
16 15 371
24 20 373
28 25 538
34 30 542

 

System Performance

Unit
Size
Condensing Unit Air Handler/
Indoor Coil
System** Condensing Unit Only***
Net Cap.
(Btuh)
EER IPLV Net Cap.
(Btuh)
EER IPLV
07 38ARZ007 40RM007
40RM008
69,000
71,000
11.0
10.8
N/A
N/A
72,000 12.4 N/A
08 38ARZ008 40RM007
40RM008
40RM012
87,000
90,000
93,000
10.6
10.6
10.4
N/A
N/A N/A
100,000 12.7 N/A
12 38ARZ012 40RM012
40RM014
118,000
123,000
10.3
10.4
N/A
N/A
133,000 12.4 N/A
14 38ARD014 40RM012
40RM014
40RM016
135,000
145,000
152,000
9.7
10.5
10.8
9.9
10.9
11.0
158,000 12.5 15.1
16 38ARD016 40RM014
40RM016
40RM024
176,000
187,000
194,000
10.0
10.2
10.1
10.4
10.5
10.2
204,000 11.9 13.9
24 38ARD024 40RM016
40RM024
40RM028
222,000
232,000
242,000
9.5
9.5
9.6
10.1
9.8
9.9
259,000 11.2 13.1
28 38ARD028 40RM028
40RM034
305,000
333,000
9.8
10.3
N/A N/A 318,000 10.1 N/A

Legend
ASHRAE - American Society of Heating, Refrigeration and Air Condition Engineers
EER - Energy Efficiency Ratio
IPLV - Integrated Part Load Value
N/A - Not Applicable
SST - Saturated Suction Temperature

Notes:
*Air Conditioning and Refrigeration Institute.
**Ratings in accordance with ARI Standard 360-2000.
***Condensing unit only ratings are at 45 F SST and 95 F entering-air temperature.

38ARD/ARZ Features

  • Up to 11.0 EER
  • Constructed for long life
  • Efficient Operation
  • Controls for performance dependability
  • Innovative Carrier 40RM packaged air handlers are custom matched to 38AR condensing units
  • Indoor-air quality (IAQ) features
  • Rugged dependability
  • Coil flexibility
  • Easier installation and service

40RM Features

  • Multiposition design can be installed horizontally or vertically without modification
  • Standard double skin units for a better indoor air quality (IAQ)
  • Polyester powder painted zinc coated steel panels provide additional protection against rusting & discoloration in areas with high UV factor
  • High-static design meets a wider range of applications than competitive packaged air handler lines
  • Economizer accessory provides ven- tilation air and ``free'' cooling
  • Cooling coils with mechanically- bonded fins provide peak heat transfer
  • Standard factory-installed thermo- static expansion valves(TXVs) on 40RM units
  • Standard sloped drain pans
  • 1" WASHABLE filters having frontal access to remove them
  • Easy installation and maintenance; removal of one side panel allows access to serviceable  components; external piping connections

38ARD/ARZ Options

  • Enviro-Shield™ condenser options offer pre-coated coils that provide protection in mild coastal environments. Several options are available to match coil protection to site conditions for optimum durability. See table below. Consult your Carrier representative for further information.
  • Non-fused disconnect switch to remove power locally at the condensing unit. This switch also includes a power lockout capability to protect the service person. This lockout switch saves the service person time and effort because there is no need to access a distant disconnect switch while servicing the unit.
  • Carrier’s line of thermostats provide both programmable and non-programmable capability with the new Debonair® line of commercial programmable thermostats. The Commercial Electronic thermostats provide 7-day programmable capability for economical applications.
  • PremierLink™ Controller is a field retrofit split system control compatible with the Carrier Comfort Network (CCN) and other building automation systems (BAS). This control is designed to allow users the access and ability to change factory-defined settings thus expanding the function of the standard unit.

Condenser Coil Options

Copper Tube Coils with Enviro-Shield Option Environment
Standard Mild Coastal Moderate Coastal
Aluminum fins (standard coils) X    
Aluminum fins, pre-coated   X  
Copper fins     X

 

40RM Options

  • One-row steam coil has copper tubes and aluminum fins. The Inner Distributing Tube (IDT) design provides unifor m temperatures acrossthe coil face.The steam coil hasa broad operating pressure range; up to 175 psig (1207 kPag) at 400 F (204.4 C) and up to 300 psig (2069 kPag) at 300 F (148.9 C). The IDT steam coils are especially suited to applications where sub-freezingair enters the unit.
  • Electric resistance heat coils have an open-wire design and are mounted in a rigid frame. Safety cutouts for high temperature conditions are standard. Terminal block for single-point power connection is included.
  • Economizer (enthalpy controlled) provides ventilation air and "free" cooling if outside ambient temperature and humidity are suitable. Can also be used with CO2 sensors to help meet indoor air quality requirements.
  • Discharge plenum directs the air discharge directly into the occupied space; integral horizontal and vertical louvers enable redirection of airflow. Accessory is available unpainted or painted. Field assembly required.
  • Standard units available from the factory are in Double skin.
  • Return-air grille provides a protective barrier over the return-air opening and givesa finished appearance to units installed in the occupied space. Accessory is available unpainted or painted.
  • Subbase provides a stable, raised platform and room for condensate drain trap connection for vertical floor-mounted units. Accessory is available unpainted or painted.
  • Over head suspension package includes necessary brackets to support units in horizontal ceiling installations.
  • CO2 sensors can be used in conjunction with the economizer accessory to help meet indoor air quality requirements.The sensor signals the economizer to open when the CO2 level in the space exceeds the set point. A Carrier Comfort System programmable thermostat can be used to override the sensor if the outside air temperature is too high or too low.
  • Carrier's line of thermostats provide both programmable and non-programmable capability with the new Debonair line of commercial programmable thermostats,the TEMP System controls offer communication capability with staged heating and cooling, the Commercial Electronic thermostats provide 7-day programmable capability for economical applications,while the Non-Programmable thermostatsoffer a multitude of stagedheating and cooling subbase options.
  • Condensate drain trap includes an overflow shutoff switch that can be wired to turn off the unit if the trap becomes plugged. Kit also includes a wire harness that can be connected to an alarm if desired. The transparent trap is designed for easy service and maintenance.

38AR Weights & Dimensions

Unit
38AR
Nominal Cooling
(Tons)
Dimensions (mm) Net Weight
(kg)
Length Width Height
07 6.0 1504 1157 992 154
08 7.5 1504 1157 992 192
12 10.0 1504 1157 992 213
14 12.5 1844 1124 1058 357
16 15.0 1844 1124 1058 386
24 20.0 1844 1124 1058 397
28 25.0 2451 1380 1282 580

 

40RM Weights

Unit
40RM
Nominal Capacity
(Tons
Operating Weight
(Kg)
07 6 203
08 7.5 205
12 10 214
14 12.5 364
16 15 371
24 20 373
28 25 538
34 30 542

 

System Performance

Unit
Size
Condensing Unit Air Handler/
Indoor Coil
System** Condensing Unit Only***
Net Cap.
(Btuh)
EER IPLV Net Cap.
(Btuh)
EER IPLV
07 38ARZ007 40RM007
40RM008
69,000
71,000
11.0
10.8
N/A
N/A
72,000 12.4 N/A
08 38ARZ008 40RM007
40RM008
40RM012
87,000
90,000
93,000
10.6
10.6
10.4
N/A
N/A N/A
100,000 12.7 N/A
12 38ARZ012 40RM012
40RM014
118,000
123,000
10.3
10.4
N/A
N/A
133,000 12.4 N/A
14 38ARD014 40RM012
40RM014
40RM016
135,000
145,000
152,000
9.7
10.5
10.8
9.9
10.9
11.0
158,000 12.5 15.1
16 38ARD016 40RM014
40RM016
40RM024
176,000
187,000
194,000
10.0
10.2
10.1
10.4
10.5
10.2
204,000 11.9 13.9
24 38ARD024 40RM016
40RM024
40RM028
222,000
232,000
242,000
9.5
9.5
9.6
10.1
9.8
9.9
259,000 11.2 13.1
28 38ARD028 40RM028
40RM034
305,000
333,000
9.8
10.3
N/A N/A 318,000 10.1 N/A

Legend
ASHRAE - American Society of Heating, Refrigeration and Air Condition Engineers
EER - Energy Efficiency Ratio
IPLV - Integrated Part Load Value
N/A - Not Applicable
SST - Saturated Suction Temperature

Notes:
*Air Conditioning and Refrigeration Institute.
**Ratings in accordance with ARI Standard 360-2000.
***Condensing unit only ratings are at 45 F SST and 95 F entering-air temperature.