Carrier 38AH044-084 specifications Total Linear Length of Interconnecting Pipe Ð FT M Unit

Page 16

Table 6A Ð Refrigerant Piping Requirements Ð 38AH044-104 Dual-Circuit Units Ð 60 Hz

 

 

 

 

 

 

 

TOTAL LINEAR LENGTH OF INTERCONNECTING PIPE Ð FT (M)

 

 

 

 

UNIT

 

15-25

 

25-50

 

50-75

 

75-100

 

100-150

 

150-200

 

38AH

(4.6-7.6)

(7.6-15.2)

(15.2-22.9)

(22.9-30.5)

(30.5-45.7)

(45.7-61.0)

 

 

 

L

 

S

L

 

S

L

 

S

L

 

S

L

 

S

L

 

S

044

 

Ckt A

5¤8

 

15¤8

7¤8

 

15¤8

7¤8

 

21¤8

7¤8

 

21¤8

7¤8

 

21¤8

7¤8

 

21¤8

 

Ckt B

5¤8

 

15¤8

7¤8

 

15¤8

7¤8

 

21¤8

7¤8

 

21¤8

7¤8

 

21¤8

7¤8

 

21¤8

 

 

 

 

 

 

 

 

054

 

Ckt A

5¤8

 

15¤8

7¤8

 

15¤8

7¤8

 

21¤8

7¤8

 

21¤8

7¤8

 

21¤8

7¤8

 

21¤8

 

Ckt B

7¤8

 

15¤8

7¤8

 

21¤8

7¤8

 

21¤8

11¤8

 

21¤8

11¤8

 

21¤8

11¤8

 

25¤8*

 

 

 

 

 

 

 

 

064

 

Ckt A

7¤8

 

15¤8

7¤8

 

21¤8

7¤8

 

21¤8

7¤8

 

21¤8

11¤8

 

21¤8

11¤8

 

25¤8²

 

Ckt B

7¤8

 

21¤8

7¤8

 

21¤8

7¤8

 

21¤8

11¤8

 

21¤8

11¤8

 

25¤8

11¤8

 

25¤8

 

 

 

 

 

 

 

 

074

 

Ckt A

7¤8

 

21¤8

7¤8

 

21¤8

7¤8

 

21¤8

11¤8

 

21¤8

11¤8

 

25¤8²

1 1¤8

 

25¤8²

 

Ckt B

7¤8

 

21¤8

11¤8

 

21¤8

11¤8

 

21¤8

11¤8

 

25¤8

13¤8

 

25¤8

13¤8

 

25¤8

 

 

 

 

 

 

 

 

084

 

Ckt A

7¤8

 

21¤8

11¤8

 

21¤8

11¤8

 

21¤8

11¤8

 

25¤8²

1 3¤8

 

25¤8²

1 3¤8

 

25¤8²

 

Ckt B

7¤8

 

21¤8

11¤8

 

21¤8

11¤8

 

21¤8

11¤8

 

25¤8

13¤8

 

25¤8

13¤8

 

25¤8

 

 

 

 

 

 

 

 

094

 

Ckt A

7¤8

 

21¤8

11¤8

 

21¤8

11¤8

 

25¤8²

1 1¤8

 

25¤8²

1 3¤8

 

25¤8²

1 3¤8

 

31¤8**

 

Ckt B

7¤8

 

21¤8

7¤8

 

21¤8

11¤8

 

21¤8

11¤8

 

25¤8

11¤8

 

25¤8

13¤8

 

25¤8

 

 

 

 

 

 

 

 

104

 

Ckt A

7¤8

 

21¤8

11¤8

 

21¤8

11¤8

 

25¤8²

1 1¤8

 

25¤8²

1 3¤8

 

25¤8²

1 3¤8

 

31¤8**

 

Ckt B

7¤8

 

21¤8

11¤8

 

21¤8

11¤8

 

25¤8

11¤8

 

25¤8

13¤8

 

31¤8**

13¤8

 

31¤8**

 

 

 

 

 

 

 

 

LEGEND

LÐ Liquid Line S Ð Suction Line

*Double suction riser required on units with ®eld installed unloader on circuit B compressor if condensing unit is elevated above evaporator.

²Double suction riser required on units with ®eld installed unloader on circuit B compressor if condensing unit is elevated above evaporator.

**Double suction riser required on all unit con®gurations if condens- ing unit is elevated above evaporator.

NOTES:

1.Addition of 2 unloaders to circuit B compressor is not recommended.

2.38AH094 and 38AH104 piping sizes apply only to factory sup- plied unit con®gurations. They do NOT take into account any ®eld installed unloaders.

3.Piping sizes are based on unit operation above 40 F (4.4 C) satu- rated suction temperature (SST). When operating below 40 F

(4.4 C), refer to Carrier System Design Manual, E20-II piping de- sign program, or ASHRAE Handbook to select proper line sizes.

4.Pipe sizes are based on the total linear length shown for each column, plus a 50% allowance for ®ttings.

5.Suction and liquid line sizing is based on pressure drop equivalent to 2 F (1.1 C) at nominal rating conditions. Higher pressure drop design criteria may allow selection of smaller pipe sizes, but at a penalty of decreased system capacity and ef®ciency.

6.Double suction risers may be required if condensing unit is elevated above the evaporator. See footnotes and double suction riser table below.

7.Refer to Carrier System Design Manual or to E20-II design programs for further information on selecting pipe sizes for split systems.

8.All pipe sizes are OD inches. Equivalent sizes in millimeters follow:

in.

mm

5¤8

15.9

7¤8

22.2

11¤8

28.6

13¤8

34.9

15¤8

41.3

21¤8

54.0

25¤8

66.7

31¤8

79.4

Table 6B Ð Refrigerant Piping Requirements for Double Suction Risers,

38AH054-104 Dual-Circuit Units Ð 60 Hz

 

 

 

 

 

 

TOTAL LINEAR LENGTH OF INTERCONNECTING PIPE Ð FT (M)

 

 

 

 

UNIT

 

50-75

 

 

 

 

75-100

 

 

 

100-150

 

 

150-200

 

 

38AH

 

(15.2-22.9)

 

 

(22.9-30.5)

 

 

(30.5-45.7)

 

 

(45.7-61.0)

 

 

 

 

A

 

B

C

A

 

 

B

 

C

A

 

B

C

A

 

B

C

054

 

Ckt A

Ð

 

Ð

Ð

Ð

 

Ð

Ð

 

Ð

Ð

 

Ð

Ð

Ð

 

Ð

 

 

Ckt B

Ð

 

Ð

Ð

Ð

 

Ð

Ð

 

Ð

Ð

 

Ð

1

5¤8

 

21¤8

25¤8

 

 

 

 

 

 

 

064

 

Ckt A

Ð

 

Ð

Ð

Ð

 

Ð

Ð

 

Ð

Ð

 

Ð

1

5¤8

 

21¤8

25¤8

 

Ckt B

Ð

 

Ð

Ð

Ð

 

Ð

Ð

 

Ð

Ð

 

Ð

Ð

Ð

 

Ð

 

 

 

 

 

 

 

 

 

074

 

Ckt A

Ð

 

Ð

Ð

Ð

 

Ð

Ð

 

1

5¤8

 

21¤8

25¤8

15¤8

 

21¤8

25¤8

 

Ckt B

Ð

 

Ð

Ð

Ð

 

Ð

Ð

 

Ð

Ð

 

Ð

Ð

Ð

 

Ð

 

 

 

 

 

 

 

 

 

084

 

Ckt A

Ð

 

Ð

Ð

1 5¤8

 

 

21¤8

 

25¤8

15¤8

 

21¤8

25¤8

15¤8

 

21¤8

25¤8

 

Ckt B

Ð

 

Ð

Ð

Ð

 

Ð

Ð

 

Ð

Ð

 

Ð

Ð

Ð

 

Ð

 

 

 

 

 

 

 

 

 

094

 

Ckt A

15¤8

 

21¤8

25¤8

15¤8

 

 

21¤8

 

25¤8

15¤8

 

21¤8

25¤8

15¤8

 

25¤8

31¤8

 

Ckt B

Ð

 

Ð

Ð

Ð

 

Ð

Ð

 

Ð

Ð

 

Ð

Ð

Ð

 

Ð

 

 

 

 

 

 

 

 

 

104

 

Ckt A

13¤8

 

21¤8

25¤8

13¤8

 

 

21¤8

 

25¤8

13¤8

 

21¤8

25¤8

15¤8

 

25¤8

31¤8

 

Ckt B

Ð

 

Ð

Ð

Ð

 

Ð

Ð

 

1

3¤8

 

25¤8

31¤8

15¤8

 

25¤8

31¤8

 

 

 

 

 

 

 

LEGEND

ÐÐ Not Required

Pipe A Ð Suction Riser Without Trap

Pipe B Ð Suction Riser With Trap

Pipe C Ð Suction Line to Condensing Unit

NOTES:

1.See Refrigerant Piping Requirements table at top of page to determine need for double suction risers.

2.Pipe sizes are based on the total linear length, shown for each column, plus a 50% allowance for ®ttings.

3.Suction and liquid line sizing is based on pressure drop equivalent to 2 F (1.1 C) at nominal rating conditions. Higher design pressure drop criteria may allow selection of smaller pipe sizes but at a pen- alty of decreased system capacity and ef®ciency.

4.Refer to Carrier System Design Manual or to E20-II design programs for further information on selecting pipe sizes for split systems.

5.All pipe sizes are OD inches. See Table 6A notes for metric equivalents.

6.Refer to Fig. 13 for double suction riser construction.

16

Image 16
Contents Installation, Start-Up Service Instructions Unit Rigging Center of Gravity Ð in. mmModule Weight Unit Total Operational Corner WeightCheck Compressor Mounting Dimensions Ð Units 38AH044,054,064 Dimensions Ð Units 38AH074,084 Dimensions Ð Unit 38AH094 Chart 1, Field Power Supply ConnectionsDimensions Ð Unit 38AH104 Dimensions Ð Unit 38AH124 Dimensions Ð Unit 38AH134 Ð Units 38AH044-084 Physical Data Ð 50/60 Hz English Ð Units 38AH044-084 Physical Data Ð 50/60 Hz SIÐ Units 38AH094-134 Physical Data Ð 50/60 Hz English Ð Units 38AH094-134 Physical Data Ð 50/60 Hz SIControl BOX Sheet Metal Cover Panel Removed Ð Typical Module with Cover Panels Removed Liquid Lift Make Refrigerant Piping ConnectionsUnit Maximum Liquid Lift Pipe D Diameter Unit STR Ð StreetDual Circuit Single Circuit 38AH 044 Total Linear Length of Interconnecting Pipe Ð FT M Unit 15¤8 21¤8 Total Linear Length of Interconnecting Pipe Ð FT Unit 124B,134A 07415-20 20-50 50-75 124B, 134A 07438AH 6.1 TXV Ð Thermostatic Expansion Valve TYP Ð Typical Units 38AH124 and 134 with Installed Piping Kit Kit Rails Fully Assembled Piping and Trim Kit Unit 38AH134 ShownMake Electrical Connections Ð Electrical Data Ð 50/60 Hz 38AH044-084 Dual-Circuit UnitsFLA Optional SINGLE-CIRCUIT Unit CompressorRLA Electrical Data Ð 50/60 Hz Units 38AH094,104 Unit Voltage Nameplate Supply COMPRESSOR² MCADesignation CKT ModelElectrical Data Ð 50/60 Hz Units 38AH124 Control Circuit Electrical Data Ð 50/60 HzFan Motor Electrical Data Unit Condenser FAN38AH Nameplate Qty Total No.* FLA Each No.* LRA Each Unit 38AH ModuleLength Ð Insulated Wire Ð AWG Length Ð Insulated Wire Ð AWG Field Wiring, One 2-Stage Thermostat Ð Units 38AH094 Field Wiring, One 2-Stage Thermostat Ð Units 38AH124 GND Terminal Block for Field Wiring, Single ModuPanel Control, Unit 38AH094 Field Wiring, Single ModuPanel Control, Unit 38AH104 Field Wiring, Single ModuPanel Control, Units 38AH124 Install Accessories Main Power Connection and Control Circuit WiringMain Power Connection Control Circuit Control PowerPreliminary Checks 06E Compressors, TypicalAdjust Refrigerant Charge Index of Lead/Lag Circuits and Compressors 044-084 094 104 124 134 38AHSTD OPT Lead Circuit Compressor, Lead Compressor LagCharging Chart Ð Unit 38AH044 50/60 Hz Ð Dual Circuit Charging Chart Ð Unit 38AH064 50/60 Hz Ð Dual Circuit Page Page Charging Chart Ð Unit 38AH094 50/60 Hz Charging Chart Ð Unit 38AH104 50/60 HzRefrigerant Circuit Control by Pressure ± 10 Switch Opens 160 Switch Closes 255Fan Cycling Control Ð Psig kPag Pressure Switch Settings Psig kPag Switch Cutout CUT-INCapacity Control CUT-IN Ð Cutout ÐQuantity of Loaded System Unit Compressor Cylinders 38AH Circuit TotalUnit Quantity System Capacity Loaded CylindersControl Timer Cycle Unit Control Box Compressor OIL Required Compressor Replacement Ð Perform the following06E-250 06E-265 06E-275 06E-299 Compressor Stops on HIGH-PRESSURE Switch Problem Solution Compressor does not RUNCompressor Cycles on LOW-PRESSURE Switch Troubleshooting Preliminary Information Pre-Start-UpStart-Up Comp A1 Comp A2 Comp B1 Comp B2

38AH044-084 specifications

The Carrier 38AH044-084 is an innovative air conditioning unit designed to provide efficient cooling solutions for residential and light commercial applications. This model is a part of Carrier's Aqua Series and is well-regarded for its combination of performance, energy efficiency, and innovative features.

One of the standout characteristics of the Carrier 38AH044-084 is its high-efficiency rating, which often exceeds the minimum efficiency standards set by the Department of Energy. Its Seasonal Energy Efficiency Ratio (SEER) rating is commendable, indicating significant energy savings over traditional air conditioning units. This efficiency translates to lower utility bills and a reduced carbon footprint, making it an environmentally friendly option.

In terms of technology, the Carrier 38AH044-084 is equipped with a modern scroll compressor. This type of compressor is known for its durability and quiet operation, contributing to a more pleasant indoor environment. The unit also incorporates advanced refrigerant technology, often using R-410A refrigerant, which is recognized for its lower environmental impact compared to older refrigerants like R-22.

The design of the 38AH044-084 focuses on ease of installation and maintenance. The compact footprint makes it suitable for various installation scenarios, whether on rooftops or ground levels. Additionally, the unit is engineered for durability, featuring weather-resistant components that can withstand harsh environmental conditions.

Another notable feature is the advanced airflow system, which ensures even distribution of cooled air throughout the space. This technology minimizes hot spots and enhances overall comfort. Furthermore, the unit supports a range of thermostatic controls, allowing users to customize their cooling experience according to their specific needs.

The Carrier 38AH044-084 is also designed with noise reduction in mind. Its sound-dampening technology helps minimize operational noise, making it a suitable choice for residential areas where noise levels are a concern.

In summary, the Carrier 38AH044-084 offers an excellent combination of energy efficiency, advanced technology, and user-friendly features. Whether for a home or a light commercial space, this unit provides reliable cooling performance while maintaining a focus on environmental responsibility and occupant comfort. With its robust design and innovative capabilities, it's a solid choice for those seeking effective and efficient air conditioning solutions.