Icp MR5H5S42AKAAA Maratherm Heat Pump 15 SEER2 R-454B

Product Description

The INTERNATIONAL COMFORT PRODUCTS MR5H5S42AKAAA is a single-stage residential heat pump operating on R-454B refrigerant and rated at 15 SEER2 efficiency. Sold under the Maratherm brand by ICP, this unit provides both heating and cooling from a single outdoor condensing section. The 15 SEER2 rating meets current federal minimum efficiency standards for split-system heat pumps. R-454B is a lower-GWP refrigerant that replaces R-410A in new equipment, so technicians should verify that all system components, including the air handler, lineset, and metering device, are rated and compatible with R-454B before installation.

This heat pump is designed for residential split-system applications. It pairs with a compatible indoor air handler or furnace coil to deliver year-round comfort. The single-stage compressor operation makes this unit straightforward to commission and service in standard residential replacement and new-construction scenarios. Licensed HVAC technicians handling EPA Section 608-regulated refrigerants must use certified recovery equipment rated for A2L refrigerants when working with R-454B systems.

Key Features

• 15 SEER2 efficiency rating meets current federal minimum efficiency standards
• R-454B refrigerant — lower global warming potential alternative to R-410A
• Single-stage compressor operation for straightforward installation and service
• Maratherm product line manufactured by ICP, a Carrier Global brand
• Designed for residential split-system heating and cooling applications

Compatibility

Designed as an OEM-style residential split-system heat pump. Compatible indoor equipment, including air handlers and coil sections, must be rated for use with R-454B refrigerant. No specific compatible model numbers were provided in the product data.

Installation Notes

Installation must be performed by a licensed HVAC technician holding an EPA Section 608 certification. R-454B is classified as an A2L mildly flammable refrigerant, so technicians must use recovery and handling equipment rated and approved for A2L refrigerants. Disconnect and lock out all electrical power to the unit before any service work. Follow local mechanical codes and the manufacturer installation instructions for proper line set sizing, refrigerant charge procedure, and electrical connection requirements.

Technical Specifications

• Product Type: Heat Pump
• Refrigerant: R-454B
• SEER2 Rating: 15
• Compressor Stages: 1-Stage
• UPC: 81011610401

Standard Information

• Brand: INTERNATIONAL COMFORT PRODUCTS
• Manufacturer Part Number: MR5H5S42AKAAA