42 x 16 Hydronic PTACs: Choosing Between the Applied Comfort NA, NF, and NY
Many older apartment buildings, hotels, and dormitories heat with a central boiler. Their PTACs cool with a compressor and heat with a hot water or steam coil connected to the building's piping. When one of those units fails, an electric PTAC is the wrong replacement. It changes how the room heats, adds electrical load, and can shift heating cost to the occupant. Applied Comfort builds three 42 x 16 units for this situation.
Applied Comfort NA: slope top, subbase hydronic
- All-metal cabinet with a sloped top
- Electric heat or hydronic heat mounted in a subbase under the chassis
- Replaces Climate Master PTP, Friedrich TW, McQuay MQE, PDAA, PDE, PDHA, PSE, and other 42 x 16 units with a hydronic subbase
Applied Comfort NF: flat top, subbase hydronic
- Flat-top metal cabinet with top-mounted controls
- Electric heat or hydronic subbase
- 115V, 208/230V, 265V, and standby power configurations
- Works with extended air duct kits
- Replaces Islandaire N and NE, McQuay MQS, NR, PDAC, PDAF, PDH, PDHF, Singer N, NE, NR, and other flat-top 42 x 16 units
Applied Comfort NY: top-mount hydronic coil
- Hydronic coil mounted on top rather than in a subbase
- Cooling from 7,000 to 17,000 BTU
- 115V, 208/230V, 265V, and standby power configurations
- Low sound transmission
- Replaces McQuay PDAN, PDAC, PDNS, and other 42 x 16 top-mount hydronic units
How to tell which you have
- Look at the top of the cabinet. Sloped points to the NA. Flat points to the NF or NY.
- Find the coil. Pipes connecting below the chassis into a subbase point to the NA or NF. A coil and connections at the top point to the NY.
- Read the nameplate. The model number settles it. McQuay PDAC appears on both the NF and NY replacement lists, so the coil position matters on those.
Before you order
- Note whether connections are on the left or right side.
- Check the valves. A replacement is the time to fix one that leaks.
- Confirm voltage from the nameplate.
Sleeve not 42 x 16? Older hydronic units in other sizes are covered by the 16 Series, K Series, and EA Series, which all have hydronic versions.
Send the model and serial number through the contact form or call 800-866-1210.