Addison TRS Series - User Manual

Questions and Answers

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Gabriela HoffmanSep 14, 2025
Why is suction line frosting on Addison TRS?
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  Kim GrantSep 14, 2025
  If the suction line of your Addison Air Conditioner is frosting, several factors could be responsible. Check the airflow and ensure there are no loose parts or belts on the drive, and that dampers are not closed, as insufficient evaporator airflow can cause this issue. A restriction in the suction or liquid line could also be the cause. Finally, the expansion valve might be malfunctioning or defective, so check the bulb of the TXV.
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Elizabeth GouldAug 23, 2025
What to do if Addison TRS compressor starts but cuts out on high pressure switch?
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  Nancy WoodAug 23, 2025
  If your Addison Air Conditioner's compressor starts but then cuts out due to the high pressure switch, it could be due to several reasons. You might have a refrigerant overcharge, so check the pressures and charge by subcooling. The condenser fan control might have an incorrect setting, so check its calibration. The fan motor could be defective, so inspect it. Also, the condenser coil inlet might be obstructed or dirty, so check for clearances and air recirculation. Air or non-condensables in the system could also be the cause, so check the high side equalized pressure reading with the outdoor temperature. Finally, the high pressure switch itself might be defective, so check its calibration. Check for restriction in discharge or liquid line.
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Monique GarciaAug 25, 2025
Why Addison TRS Air Conditioner compressor starts then cuts out on low pressure switch?
- B
  Brian MendezAug 26, 2025
  If the compressor in your Addison Air Conditioner starts but cuts out on the low pressure switch, it could be due to several reasons. Check the sightglass and pressures as there might be a low refrigerant charge. Inspect for restricted airflow, looking for a dirty evaporator coil or filters, closed dampers, iced evaporator, or issues with belt adjustment, motor amps, or duct design. Also, check for any restrictions in the liquid line by checking the head pressure and pressure drop across the filter drier. Finally, the low pressure switch might be defective, so check its calibration.
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Patricia DavisAug 27, 2025
Why is Addison TRS compressor so noisy?
- S
  Stacey TownsendAug 28, 2025
  If your Addison Air Conditioner's compressor is noisy, several factors could be the cause. For scroll compressors, ensure correct wiring at the disconnect switch and verify proper evaporator blower rotation, as these compressors are rotation sensitive. Check the pressures and subcooling for refrigerant overcharge. Verify the oil level in hermetic compressors and check the total ecrankcase for excessive or insufficient oil. Inspect the TXV setting and check for refrigerant overcharge to address liquid floodback. Dampen tubing vibration by taping or clamping, and bend tubing away from contact points to resolve tubing rattle. If none of these address the issue, the compressor itself may be defective, so check internal parts on semi-hermetic compressors.
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Terry CarrollAug 31, 2025
How to fix noisy Addison Air Conditioner unit operation?
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  Allison BurnsAug 31, 2025
  If the Addison Air Conditioner unit is operating noisily, several factors could contribute to the problem. Check the blower, motor, and drive for faulty adjustment, noisy bearings, loose parts, or if the blower is out of balance, as these can cause blower rotational noise. Inspect the ductwork to ensure air velocity isn't too high, as this can cause air noise. Check for adequate control voltage, shorts or breaks, thermostat issues, and contact points to address chattering contactors. Finally, dampen tubing vibration by taping or clamping, and bend tubing away from contact points to resolve tubing rattle.
K
Kimberly ChristensenSep 1, 2025
Why is Addison TRS Air Conditioner supply air temperature too high?
- J
  James NortonSep 2, 2025
  If the supply air temperature from your Addison Air Conditioner is too high, it could be due to several reasons. There might be a refrigerant undercharge or a leak in the system, so check the subcooling and look for leaks. The evaporator could be plugged with dirt or ice, so inspect the evaporator, airflow, and filter. The expansion valve might be improperly adjusted or defective, so check the superheat, adjust the TXV, and inspect the bulb. Also, the compressor itself could be defective, so check it for proper operation. High discharge pressure can also cause this issue. Check external static pressure because airflow may be too high.
C
Catherine CarterDec 1, 2025
What causes high suction pressure in Addison TRS?
- M
  Michael TaylorDec 1, 2025
  If your Addison Air Conditioner has a high suction pressure, several issues could be the cause. Check for a high entering wet bulb temperature or excessive airflow, as these can indicate an excessive load on the evaporator coil. For semi-hermetic compressors, broken valves could be the issue (scroll compressors do not have valves); remove the head and inspect the reeds. If the compressor is unloaded, check the head pressure, adjust the TXV if it's not functioning correctly, and check the pressure drop across the filter drier, also re-calibrate the unloader pressure switch. A leaking check valve could also be the cause, so check the temperature across it. Finally, ensure the expansion valve is secured to the suction line and that the TXV is functioning correctly, and make sure the bulb is i...
P
Pam BruceSep 15, 2025
What causes low supply air temperature in Addison Air Conditioner?
- J
  Joseph BeardSep 16, 2025
  If the supply air temperature is lower than expected in your Addison Air Conditioner, it could be due to a couple of reasons. Insufficient airflow can cause this issue, so check the evaporator coil and filter, and ensure that dampers and grills are open. Also, inspect the drive for loose parts, belts, or misalignment, and check the external static pressure. If the return air temperature is too low, check the entering air wet bulb conditions.
B
Benjamin FoxSep 12, 2025
What does it mean if Addison Air Conditioner liquid line frosted or wet?
- M
  Madeline JohnsonSep 13, 2025
  If the liquid line of your Addison Air Conditioner is frosted or wet, it indicates a restriction in the liquid line. The restriction is located upstream of the point where the frosting occurs.
G
gentrykarenSep 9, 2025
What causes suction pressure too low in Addison TRS?
- C
  Christopher ClarkSep 9, 2025
  If the suction pressure in your Addison Air Conditioner is too low, there are several potential causes. Check the pressures and subcooling, as there might be a refrigerant undercharge. If the blower is running backward, interchange any two wires from the 3-phase disconnect. Inspect for loose blower components, such as pulleys or belts, and check the drive pulley alignment and belt tension. A defective or improperly adjusted expansion valve could also be the issue, so check the superheat and adjust the TXV. Check the filter and evaporator coil for dirt. Insufficient airflow or low entering air temperature can also cause low suction pressure, so check the airflow and entering air wet bulb conditions. Finally, check the refrigerant circuit for any restrictions in the suction or liquid line.

Summary

Safety Labeling and Signal Words

Signal Words Definitions

Defines DANGER, WARNING, and CAUTION based on hazard seriousness and potential injury.

Signal Words Usage in Manuals

Details how WARNING and CAUTION signal words are applied within the manual.

Product Labeling Signal Words

Describes signal words used in combination with colors and pictures on product labels.

General Description of TRS Series Units

Unpacking and Inspection Procedures

Instructions for checking the unit for damage upon receipt and reporting transit issues.

Design Certification Details

Details ETL certifications under ANSI/UL 1995 for cooling and gas furnace designs.

Applicable Codes and Ordinances

Guides installation compliance with NFPA, National Fuel Gas Code, and local authorities.

Installation Guidelines

Unit Location and Clearance Requirements

Specifies required clearances for access, service, and unobstructed airflow around the unit.

Curb Installation and Protrusions

Rigging and Lifting Procedures

Electrical Wiring Connections

Wiring Connection Guidelines

Details power and low voltage wiring connections to the main terminal block and controller.

Independent Power Source Recommendation

Recommends an independent 115-volt power source for portable lights and tools.

Main Power Wiring Requirements

Covers sizing, nameplate ampacity, and required disconnect switch for main power wiring.

Grounding Requirements

Control System Wiring Specifications

Ductwork Installation Guidelines

Condensate Piping Requirements

Gas Piping and Venting

Clearance Requirements for Service and Safety

Combustion Air Clearance Requirements

Cooling System Options Overview

Hot Gas Bypass for Capacity Control

Explains hot gas bypass as a capacity control during low ambient conditions.

Head Pressure Control Mechanisms

Variable Speed Fan Control System

Adjustable High and Low Pressure Switches

Mechanical Adjustments

Setting Fan RPM

Instructions for setting and verifying evaporator fan motor RPM using a tachometer.

Fan Rotation Check

Procedure to check fan rotation direction and correct if necessary by reversing power cables.

Drive Belt Tension and Alignment

Electrical System Options

Airflow Switch Function

Describes the airflow switch's role in preventing operation without proof of blower operation.

Clogged Filter Indicator

Explains the indicator for dirty/clogged filters based on preset pressure differential.

Convenience Outlet (Field Wired)

Details the 115V GFCI receptacle, its enclosure, and power requirements.

Convenience Outlet (Factory Wired)

Exhaust Fan Interlock

Power Through the Curb Installation

Firestat Safety Control

Sure-Trip Protection Control

Unit Controller Functionality

Sequence of Operation for Heating

Heating: Hydronic or Steam Operation

Describes controls for hydronic and low-pressure steam heat using motorized valves.

Heating: Electric Resistance Operation

Details the sequence for electric resistance heating, including contactors and heat relays.

Gas Heating Sequence of Operation

Describes the ignition sequence, burner operation, and control logic for gas heating.

Gas Furnace Operation

Gas Furnace Potential Hazards

Lists DANGER, WARNING, and CAUTION statements regarding potential hazards with gas furnaces.

Gas Furnace Installation Codes

Specifies installation compliance with NFPA, National Fuel Gas Code, and Canadian codes.

Chlorines and Harsh Environments Impact

Warns about chlorine vapors causing corrosion and advises separation from combustion air.

Gas Piping for Furnaces

Natural Gas Requirements

Propane Gas Requirements

Gas Heat Operation

Gas Heat Lighting Instructions

Step-by-step instructions for safely lighting the gas furnace burner with automatic ignition.

Detailed Gas Heat Operation Steps

Gas Heat Operation Wiring Diagrams

Two Stage Operation with Speed Controller Sequence

Fault Conditions and LED Key

Modulation Control System Wiring Diagram

Electronic Modulation with Inducer Speed Control Sequence

IC Fault Conditions and LED Key

Energy Conservation Wheel (ECW) Operation

ECW Startup Checks

Checkpoints for ECW startup: rotor rotation, motor rotation, airflow, belt tightness, VFD programming.

ECW Seal Checks and Adjustment

Guides on checking, adjusting, and maintaining ECW neoprene bulb seals for effective sealing.

Energy Conservation Wheel Maintenance

ECW Bearing Maintenance

Details maintenance for ECW bearings: no maintenance for small, greasing for larger units annually.

ECW Drive Motor

States drive motors require no maintenance; replacement motors are readily available.

ECW Drive Belts

Describes ECW multilink belts, their construction, and quick servicing or replacement.

ECW Seals

Explains ECW seals are durable, require no maintenance other than adjustment, and are easily replaceable.

ECW Wheel Cleaning and Care

Protect wheel with filter, clean with compressed air, or wash with water for severe filthiness.

ECW Wheel Removal and Reinstallation

Trouble Shooting: General Refrigeration Circuit

Varispeed Condenser Head Pressure Control Troubleshooting

Hot Gas Bypass Regulator Troubleshooting

General Gas Furnace Troubleshooting

Maxitrol-Regulator Troubleshooting

Addison Limited Warranty Terms

Limited Warranty Coverage and Exclusions

Details warranty coverage, exclusions for installation, misuse, and wear items.

Limitation on Warranties and Damages

Specifies claim periods and limitations on warranties/damages for various product components.

Warranty Remedy and Exclusive Recourse

Warranty Contact Information

Addison TRS Series Specifications

General

Energy Efficiency Ratio (EER)	11.0 - 12.5
Heating Seasonal Performance Factor (HSPF)	8.5 - 10.0
Refrigerant	R410A
Sound Level (Outdoor Unit)	50 dB(A)
Power Supply	208-230V, 60Hz, 1 Phase
Dimensions (Indoor Unit)	Varies by model
Dimensions (Outdoor Unit)	Varies by model
Weight (Indoor Unit)	Varies by model
Weight (Outdoor Unit)	Varies by model
Type	Split System Air Conditioner
Operating Temperature (Cooling)	64°F - 109°F (18°C - 43°C)
Operating Temperature (Heating)	5°F - 86°F (-15°C - 30°C)

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