McQuay Remington PTAC Series

Questions and Answers:

N
Nicholas AllenSep 9, 2025
Why won't the blowers operate on heat in my McQuay Air Conditioner?
- Z
  Zachary SmithSep 9, 2025
  If the blowers on your McQuay Air Conditioner won’t operate on heat, first ensure there is power to the unit. If there is power, and the blowers still won't operate, check if the temperature setting is too low. If the control is set on 'cycle fan', raise the temperature set point. If these steps don't resolve the issue, the control pad or PC boards may be faulty, or there may be loose connections. In either case, you should replace or tighten them accordingly. Finally, a defective blower motor could be the cause, requiring replacement.
R
ryanmooreSep 12, 2025
Why isn't the dip switch function working on my McQuay Remington PTAC Air Conditioner?
- J
  Joseph MoodySep 12, 2025
  If the dip switch function on your McQuay Air Conditioner isn't working, try unplugging the power cord and plugging it back in to activate the function. Also, slide the dip switch back and forth to ensure it has mechanically switched. Keep in mind that there may be built-in time delays to prevent overlap of functions; wait up to 4 minutes.
J
Joshua SalazarSep 13, 2025
What does a blinking diagnostic display on my McQuay Remington PTAC control pad mean?
- D
  David WebbSep 14, 2025
  If the diagnostic display on your McQuay Air Conditioner's control pad is blinking, it could indicate a defective room temperature sensor, indoor coil temperature sensor, or, for heat pump models, a defective outdoor coil temperature sensor. Replacement of the appropriate sensor is required.
T
turnerdanaSep 16, 2025
What should I do if my McQuay Remington PTAC gives an electrical shock?
- M
  Michael CurtisSep 16, 2025
  If your McQuay Air Conditioner is giving an electrical shock, it indicates a grounded electrical circuit. Repair the circuit and check the equipment ground.

McQuay Remington PTAC Series Specifications

General

Refrigerant	R-410A
Type	PTAC (Packaged Terminal Air Conditioner)
Cooling Capacity	9, 000 - 15, 000 BTU/h
Voltage	208/230V
Unit Dimensions (H x W x D)	16" x 42" x 15.5"

Summary

General Information and Product Overview

General Description

Overview of the packaged terminal air conditioners and heat pumps.

Operational Warnings and Notices

Critical safety warnings, notices for operation, and shipping damage claims.

Product Nomenclature

Explanation of model codes, cooling capacities, and unit configurations.

Control Features and Operation

Control Pad Operation

Guide to using the control pad for modes, temperature, and fan speed.

Advanced Control Functions

Freeze protection, remote ON/OFF, and temperature limiting features.

Dip Switch Configuration

Guide to configuring unit behavior using internal dip switches.

Special Control Modes

Description of Timer, Sleep, and Motion Sensor/Door Switch functions.

Remote Thermostat Integration

Instructions for connecting and operating a remote wall thermostat.

Installation Procedures

Unit Installation - General

Specifications for preparing the wall opening for unit installation.

Condensate Drain Kit Installation

Steps for installing optional indoor or outdoor condensate drain kits.

Subbase Installation

Procedure for installing the subbase, including electrical connections.

Wall Sleeve Installation

Instructions for installing wall sleeves in thin, medium, and thick walls, including extensions.

Sleeve Extension and Louver Frame Installation

Installation of louver frames and wall sleeve extensions.

Outdoor Louvers

Details on louver types, specifications, and airflow requirements.

Chassis Installation

Safe handling and mounting of the unit chassis into the wall sleeve.

Operation and Maintenance

Equipment Start-up

Procedures for initial unit start-up, testing all functions, and safety checks.

Heater and Power Cord Matching

Guidance on selecting the correct power cord for the unit's heater capacity.

Control Function Testing

Testing of special control modes like Sleep, Timer, and motion sensors.

Special Feature Testing

Testing remote controls, heat pump override, and thermostat functions.

Remote Thermostat Installation

Schematic for connecting a remote thermostat and associated wiring.

Wiring Diagrams

Wiring diagrams for universal and fixed heaters, and power cord selection.

Scheduled Maintenance

Recommended maintenance tasks including filter cleaning and annual chassis checks.

Recommended Spare Parts

List of recommended parts to stock for quick replacement and system uptime.

Refrigeration Cycle Overview

Diagram illustrating the refrigeration cycle and its components.

Troubleshooting and Diagnostics

Troubleshooting Chart

Diagnosing issues with fan, compressor, cooling, heating, and noise.

Fan and Compressor Troubleshooting

Diagnosing issues with fan operation, compressor start, and overload conditions.

Cooling Capacity and Noise Issues

Troubleshooting insufficient cooling, excessive cooling, and system noise.

Heating and Blower Troubleshooting

Diagnosing problems with heating operation and blower functionality.

Diagnostic Display Code Interpretation

Interpreting error codes displayed on the control pad for fault identification.

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