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The ICP PHB436000K000B is a 3-ton residential heat pump designed to operate with R454B refrigerant, a lower-global-warming-potential alternative to legacy refrigerants now required under current EPA phasedown regulations. This unit is part of ICP's entry-level heat pump lineup, providing both heating and cooling in a single outdoor condensing package. A licensed HVAC technician handles installation, charging, and commissioning. The R454B refrigerant classification requires A2L-compliant service practices and certified equipment, so field technicians should confirm their tooling and training meet current requirements before starting work.
The PHB436000K000B is suited for residential split-system applications where a 3-ton capacity matches the calculated heating and cooling load. It pairs with a compatible indoor air handler or furnace coil and is intended for entry-level replacement or new-construction installs where straightforward single-stage operation is the design goal. Verify system static, refrigerant line sizing, and electrical service before finalizing the installation plan.
Designed as an OEM-style entry-level outdoor heat pump unit for use in residential split-system configurations requiring 3-ton capacity and R454B refrigerant compatibility. No specific compatible indoor unit model numbers were provided in the available product data.
Installation must be performed by a licensed HVAC technician certified to handle A2L refrigerants, as R454B carries a mild-flammability classification requiring specific safety protocols during recovery, charging, and leak testing. Disconnect and lock out all electrical power to the system before making any wiring or refrigerant connections. Follow NEC requirements for disconnect sizing and wire gauge, and adhere to local mechanical codes for pad placement, clearances, and line set routing. Do not attempt to substitute R454B with any other refrigerant, as the system components are designed and rated for this specific refrigerant blend.
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.
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