Carrier 38AKS013-024 specifications Troubleshooting

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TROUBLESHOOTING (cont)

 

PROBLEM

 

SOLUTION

COMPRESSOR CYCLES ON LOW-PRESSURE SWITCH (cont)

 

 

Air¯ow Restricted

 

 

1.

Coil iced up.

1.

Check refrigerant charge.

2.

Coil dirty.

2.

Clean coil ®ns.

3.

Air ®lters dirty.

3.

Clean or replace ®lters.

4.

Dampers closed.

4.

Check damper operation and position.

Indoor-Air Fan Stopped

 

 

1.

Electrical connections loose.

1.

Tighten all connections.

2.

Fan relay defective.

2.

Replace relay.

3.

Motor overload open.

3.

Power supply.

4.

Motor defective.

4.

Replace motor.

5.

Fan belt broken or slipping.

5.

Replace or tighten belt.

COMPRESSOR RUNNING BUT COOLING INSUFFICIENT

 

 

Suction Pressure Low

1.

Add refrigerant.

1.

Refrigerant charge low.

 

 

2.

Head pressure low.

2.

Check refrigerant charge.

 

 

 

Check outdoor-air fan thermostat settings.

3.

Air ®lters dirty.

3.

Clean or replace ®lters.

4.

Expansion valve power head defective.

4.

Replace power head.

5.

Indoor coil partially iced.

5.

Check low-pressure setting.

6.

Indoor air¯ow restricted.

6.

Remove obstruction.

Suction Pressure High

 

 

1.

Unloaders not functioning.

1.

Check unloader adjustments.

 

 

 

Check unloader setting.

2.

Compressor valve defective.

2.

See compressor service literature.

3.

Heat load excessive.

3.

Check for open doors or windows in vicinity of fan coil.

UNIT OPERATES TOO LONG OR CONTINUOUSLY

 

 

1.

Low refrigerant charge.

1.

Add refrigerant.

2.

Control contacts fused.

2.

Replace control.

3.

Air in system.

3.

Purge and evacuate system.

4.

Partially plugged expansion valve or ®lter drier.

4.

Clean or replace.

SYSTEM IS NOISY

 

 

1.

Piping vibration.

1.

Support piping as required.

2.

Compressor noisy.

2.

Check valve plates for valve noise. Replace compressor if

 

 

 

bearings are worn.

COMPRESSOR LOSES OIL

 

 

1.

Leak in system.

1.

Repair leak.

2.

Crankcase heaters not energized during shutdown.

2.

Check wiring and relays. Check heater and replace if

 

 

 

defective.

3.

Improper interconnecting piping design.

3.

Check piping for oil return. Replace if necessary.

FROSTED SUCTION LINE

 

 

Expansion valve admitting excess refrigerant.

Adjust expansion valve.

HOT LIQUID LINE

 

 

1.

Shortage of refrigerant due to leak.

1.

Repair leak and recharge.

2.

Expansion valve opens too wide.

2.

Adjust expansion valve.

FROSTED LIQUID LINE

 

 

1.

Restricted ®lter drier.

1.

Remove restriction or replace.

2.

Liquid line solenoid valve partially closed.

2.

Replace valve.

COMPRESSOR WILL NOT UNLOAD

 

 

1.

Defective unloader.

1.

Replace unloader.

2.

Defective capacity control solenoid valve (if used).

2.

Replace valve.

3.

Miswired capacity control liquid line solenoid (if used).

3.

Rewire correctly.

4.

Weak, broken, or wrong valve body spring.

4.

Replace spring.

COMPRESSOR WILL NOT LOAD

 

 

1.

Miswired capacity control liquid line solenoid (if used).

1.

Rewire correctly.

2.

Defective capacity control solenoid valve (if used).

2.

Replace valve.

3.

Plugged strainer (high side).

3.

Clean or replace strainer.

4.

Stuck or damaged unloader piston or piston ring(s).

4.

Clean or replace the necessary parts.

 

 

 

 

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Contents Contents Safety ConsiderationsInstallation Dimensions Component Locations Typical Ð Physical Data English, 60 Hz OIL Charge L Condenser Fans Ð Physical Data SI, 60 HzÐ Physical Data English, 50 Hz Ð Physical Data SI, 50 Hz Rig and Mount the Unit Weight DistributionComplete Refrigerant Piping Connections Liquid Line DataLength of Interconnecting PIPING, FT M Cond Length of Interconnecting PIPING, FT MLength of Interconnecting Piping FT M Ð Refrigerant Piping Sizes Ð 60 Hz UnitsLocation of Sight Glasses Filter Driers IFC NECLLSV2 Ð Unit ComprSystem Check PRE-START-UPÐ Electrical Data 3 Ph/50 Hz MCA ICFAdjust Refrigerant Charge START-UPPreliminary Checks 38AKS013 and 38AKS024 Charging Chart 38AKS014 Charging Chart 38AKS016 Charging Chart Operating Sequence ServiceLubrication Compressor ProtectionOutdoor Fan Problem Solution Compressor does not RUN TroubleshootingCompressor Stops on HIGH-PRESSURE Switch Compressor Cycles on LOW-PRESSURE SwitchTroubleshooting Copyright 1998 Carrier Corporation START-UP Checklist Preliminary InformationPre-Start-Up Start-Up

38AKS013-024 specifications

The Carrier 38AKS013-024 is a prominent series of packaged air conditioning units designed to achieve optimal performance across various applications. Engineered with advanced technologies, these units are ideal for both residential and light commercial spaces, offering reliable climate control in a compact design.

The main features of the Carrier 38AKS series include high-efficiency cooling and heating capabilities. With SEER ratings that meet or exceed industry standards, these units offer reduced energy consumption, making them an environmentally friendly choice. Furthermore, the Carrier 38AKS013-024 is equipped with a scroll compressor, which enhances reliability and reduces operating noise, creating a more comfortable indoor environment.

One of the standout technologies incorporated in the Carrier 38AKS series is its advanced microprocessor control system. This technology provides precise temperature control and allows for easy integration with smart home systems. Users can conveniently manage their indoor climate through remote access, ensuring comfort at all times.

Additionally, the 38AKS series boasts durable construction materials, ensuring longevity and sustained performance even in challenging environmental conditions. The units feature a galvanized steel cabinet with a rust-resistant finish, providing protection from the elements. This design also allows for easy access to internal components during maintenance, simplifying servicing.

In terms of characteristics, the Carrier 38AKS013-024 offers a range of cooling capacities, making it suitable for various space sizes and applications. The lightweight design facilitates easy installation, while the low noise levels ensure minimal disruption in residential settings. These units also come with environmentally friendly refrigerants, aligning with modern sustainability goals.

Carrier's commitment to quality and performance is evident in the 38AKS series. With their combination of innovative technology, energy efficiency, and robust construction, the Carrier 38AKS013-024 units represent an excellent choice for those seeking a reliable and efficient air conditioning solution. Whether for home or light commercial use, these units promise consistent comfort and satisfaction.
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