

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 60 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 INTERNATIONAL COMFORT PRODUCTS MFHMA5B48L0CA is a 4-ton modular fan coil unit from the Maratherm FHMA5 series, designed for use with R454B refrigerant and equipped with an electronically commutated motor (ECM) and a thermostatic expansion valve (TXV). This unit functions as the indoor air handler component in a split-system cooling or heat pump configuration, circulating conditioned air through the duct system. The ECM drive reduces electrical consumption compared to standard PSC motors, and the factory-installed TXV provides precise refrigerant metering for improved system efficiency. Installation is performed by licensed HVAC technicians working on residential or light commercial split systems.
The MFHMA5B48L0CA is engineered for modular installation in residential and light commercial applications where R454B refrigerant systems are specified. R454B is an A2L low-global-warming-potential refrigerant increasingly required under current EPA regulations, making this unit suited for new construction and equipment replacement projects that must meet current environmental standards. The modular design allows flexible placement in closet, alcove, or utility room installations typical of residential split systems. Consult the equipment schedule and load calculations to confirm 4-ton capacity matches the structure's design cooling load.
Designed as an OEM-style modular fan coil for R454B split-system and heat pump configurations within the Maratherm FHMA5 product group. Pair with a compatible R454B-rated outdoor condensing unit sized for 4-ton operation. Verify system match using the manufacturer equipment compatibility guidelines before installation.
Installation must be performed by a licensed HVAC technician holding the appropriate EPA Section 608 refrigerant handling certification, as this unit operates with R454B, an A2L mildly flammable refrigerant requiring specific safety precautions. De-energize the system and recover all refrigerant according to EPA regulations before opening any refrigerant circuits. Follow local mechanical codes and the manufacturer installation instructions for duct connections, drain line routing, and electrical supply requirements. Do not use R-22 or R-410A service equipment without confirming compatibility with A2L refrigerants.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!