RunTru by Trane Evaporator Coils for 21" Furnaces

Every RunTru by Trane R-454B evaporator coil with a 21" cabinet, in both upflow (5PXC) and multi-position (5TXC) styles. Measure your furnace cabinet; if it's 21" wide, these coils line up with no transition.

How to choose the right RunTru coil

1. Match the cabinet width to your furnace: 14.5", 17.5", 21" or 24.5". The 5th character of the model number tells you (A, B, C or D).
2. Pick the style. 5PXC coils are dedicated upflow coils that sit on top of an upflow furnace. 5TXC coils are convertible: upflow, downflow, or horizontal left or right.
3. Check the capacity range and the AHRI match. Each coil covers a tonnage range. Confirm the AHRI rating for your exact outdoor unit and coil pair.

Read a RunTru coil model number

Example: 5TXCB004AS3HC

• 5 = R-454B generation
• PXC = cased upflow coil · TXC = cased convertible (multi-position) coil
• B = cabinet width (A = 14.5", B = 17.5", C = 21", D = 24.5")
• 004 = coil size. A higher number means a bigger coil for higher tonnage.

Frequently asked questions

How do I measure my furnace width?

Measure the outside of the furnace cabinet from side to side, or read the width from the furnace model number or nameplate.

Is RunTru made by Trane?

Yes. RunTru is a brand of Trane Technologies.

Can I use this coil with an R-410A outdoor unit?

No. These coils are for R-454B systems. Replace an R-410A outdoor unit and coil together with a matched R-454B pair.

Do you ship coils?

Yes, to all 48 contiguous states. Licensed contractors can get trade pricing through our contractor portal.

Shop RunTru coils

By style: Upflow coils (5PXC) · Multi-position coils (5TXC)

By cabinet width: Coils for 14.5" furnaces · Coils for 17.5" furnaces · Coils for 24.5" furnaces

All RunTru evaporator coils

Pair with a RunTru R-454B heat pump or a RunTru A5AC air conditioner.