Finding Parts for Discontinued McQuay PTACs and Equipment
McQuay, now Daikin Applied, stopped making PTAC units in 2014. Buildings full of McQuay, Singer, and Remington units did not stop needing service. Air Distributors has been a factory authorized McQuay parts distributor since 1988, and many McQuay parts are still available.
Common McQuay PTAC parts
- Controls: legacy control box assemblies (B series), updated B+ controls, and the 300042639 touch pad control
- Heat strips in 2.5, 3.5, and 5.0 kW
- Indoor and outdoor coils
- Drain pans, grilles, and louvers
- LCDI power cords
- Fan motors, such as condenser fan motors from 1/30 to 3/4 horsepower
- Rotary compressors, such as the 300044132, which replaces the obsolete 300039309
Obsolete is not always the end
Some McQuay part numbers are obsolete, including several PTAC control boxes. A superseded or cross-referenced part often does the same job. Send the original part number with the unit's model and serial number, and we look up the current equivalent.
Beyond PTACs
McQuay parts cover much more than through-the-wall units: control boards such as the Mark IV (056792401K) and Mark III (48166902K), chiller parts, coils, blower motors, and refrigeration components like expansion valves and filter driers. See McQuay parts, chiller parts, and coils.
When to stop repairing
Parts make sense for a failed motor or board on a unit that is otherwise sound. A failed compressor in a decades-old PTAC, or a third major repair on the same unit, usually means it is time to replace the chassis. Applied Comfort builds replacements for most McQuay PTAC sleeves:
- McQuay K, EK, MEK, PKES: Applied Comfort K
- McQuay EA, MEA, PMES, PMEA, PDAE: Applied Comfort EA
- McQuay PNES and AAF Series 16: Applied Comfort 16 Series
- McQuay RS, ES, MQT: Applied Comfort RS
- McQuay TPW: Applied Comfort DM Series
- McQuay 42 x 16 hydronic units: NA, NF, or NY
Send the model and serial number through the contact form or call 800-866-1210.