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R-410A Optimized: Specifically calibrated for high-pressure R-410A systems to ensure accurate flow modulation
If your heat pump outdoor unit is consistently encased in thick ice or fails to switch the reversing valve and fan during a defrost call
This unit is housed in a NEMA Type 1 junction box and includes 18" electrical leads for straightforward field wiring
With a calibrated 0 to 100 degree temperature range and a corresponding 100-degree span
Resideo VCZZ1500 Replacement Cartridge R-448A R-410A Optimized: Specifically calibrated forThe Resideo VCZZ1500 Replacement Cartridge is a critical component for maintaining hydraulic balance in hydronic heating and cooling systems. Specifically engineered for use with two way VC series valves, this cartridge features a silver spring and is calibrated for equal percentage extra low flow (0. 7 Cv). This provides the granular control required for high performance fan coil units and terminal reheat coils where precise temperature regulation is