

Ships via freight in 1-3 business days
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
This product weighs 75 lb each and will be shipped via LTL carrier. A lift gate option will be added free of charge for your convenience.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The ASPEN cm42a3j-177l-000 is a 3.5-ton uncased evaporator coil designed for mobile home air conditioning systems. Built with a copper coil construction and factory-installed TXV (thermostatic expansion valve), this unit is engineered for use with R454B refrigerant in non-bleed (NB) TXV configurations. At 17.75 inches wide, 19.5 inches tall, and 19.625 inches deep, it fits within the tight spatial constraints typical of manufactured housing air handler installations. HVAC technicians servicing mobile and manufactured home cooling systems will find this coil suited for direct replacement or new system builds where R454B compatibility is required.
This coil is intended for residential mobile and manufactured home HVAC applications. The uncased design accommodates installations where the air handler cabinet or enclosure provides the structural housing. The integrated TXV metering device supports precise refrigerant flow control, making it appropriate for split-system cooling setups in manufactured housing where equipment footprint and refrigerant type are tightly specified by the system design.
Designed as an OEM-style replacement or new-install evaporator coil for 3.5-ton mobile and manufactured home split-system air conditioning applications using R454B refrigerant with a non-bleed TXV metering device.
Installation should be performed by a licensed HVAC technician certified to handle A2L refrigerants, as R454B is classified as mildly flammable. Shut down and lock out the system fully before coil removal or installation, and recover all refrigerant in accordance with EPA Section 608 regulations. Verify that the existing air handler enclosure dimensions and drain pan configuration are compatible with this coil before proceeding. Follow all applicable mechanical codes and the equipment manufacturer instructions for TXV bulb placement and line set connections.
Thanks for subscribing!
This email has been registered!