OXBOX BY TRANE – TXV KIT, COIL AND AIR HANDLER 3.5 – 4.0 TON, R-454B – 5AYTXVH3A4248A
$126.00
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The kit is for indoor coil/air handler use (i.e., the evaporator side) in matched systems using R‑454B refrigerant.
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Size range: 3.5 ‑ 4.0 ton (this relates to the matched outdoor/indoor system capacity) with the specific R‑454B metering kit.
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Because it’s for R‑454B (an A2L mildly flammable refrigerant), extra care is needed in installation: proper leak detection, brazing, nitrogen purge, correct service practices.
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The kit will include the TXV body, bulb/sensing element, possibly manifold adapters, orifices or other applicable components needed for R‑454B conversion/installation.
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Compatibility: Must match the coil/air handler model, refrigerant, and capacity; using the wrong metering device will lead to improper refrigerant flow, reduced efficiency, or could damage the system.
5 in stock
The 5AYTXVH3A4248A is a genuine thermostatic expansion valve (TXV) kit designed for medium-capacity HVAC split systems using R-454B refrigerant, typically paired with 3.5 to 4.0 ton coils and air handlers. This OEM-grade valve precisely meters refrigerant into the evaporator coil, improving system performance, cooling efficiency, and overall comfort.
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