The York YH4 Heat Pump is part of the 14.3 SEER2 Regional Minimum Efficiency lineup sold across the United States. Each outdoor unit is engineered to pair seamlessly with York residential indoor coils, furnaces, and air handlers—providing a complete, efficient home comfort system.
Key Features
Simplified installation – Independent access panels make setup faster, with easy-to-reach power and control wiring. Many compatible indoor units include factory-mounted TXVs for quicker matching. The filter-drier ships loose for field installation, and the system comes factory-charged for 15 ft. of refrigerant piping. A compact footprint and reduced clearance requirements make retrofits easier.
Instant access to information – A built-in QR code links directly to technical docs and warranty details.
Durable exterior – Coated steel wire fan guards, treated fasteners, and G90-equivalent galvanized steel chassis components resist corrosion. The Modern Mist powder-coat finish adds extra protection.
High-quality coils – The efficient microchannel aluminum coil uses an upgraded material system for reliable performance in a compact size.
Sturdy coil protection – A stamped steel coil guard shields the coil from mechanical damage.
Compressor protection – Internal safeguards include a high-pressure relief valve and temperature sensor, while an external high-pressure switch adds another layer of protection.
Reliable performance – Ball-bearing fan motors deliver dependable operation in harsh temperatures.
Eco-friendly refrigerant – Uses CFC-free R-454B with zero ozone depletion.
Top-discharge design – Directs warm air upward and away from the home or landscaping, allowing tight placement in multi-unit installations.
Quiet operation – The cabinet and top assembly are engineered using CFD and FEA tools, keeping sound levels at 77 dBA or below. Additional sound-reducing accessories are available.
Improved serviceability – Diagonal base valves with open access, a single electrical access panel, swing-out control box, and removable fan guard make maintenance simpler.
Agency certified – Safety listed by CSA to UL 60335-2-40/CSA C22.2. Performance certified to ANSI/AHRI 210/240 under the Unitary Small Equipment program.