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Installing a genuine OEM Carrier expansion valve helps restore refrigerant balance and supports efficient HVAC system performance
facilitating reliable motor performance and operational longevity in residential and commercial applications
Field-Ready Durability: Constructed from high-grade materials to withstand thermal expansion and vibration typical in professional HVACR environments
we recommend using a weather shield or NEMA-rated enclosure if installing the gage in locations exposed to direct precipitation or extreme temperature fluctuations to prevent condensation or damage to the diaphragm
OEM Compatibility: Guaranteed fit for Friedrich Premier (PDE/PDH) and Select Series (PZE/PZH) PTAC models
Resideo AT88A1005 Transformer 318172-701 Installing a genuine OEM CarrierThe Resideo AT88A1005 is a heavy duty, foot mounted HVAC control transformer designed to deliver reliable 24V power to high demand commercial and residential systems. Engineered as a 75VA transformer, this unit effectively steps down 120V primary voltage to a stable 26. 5V secondary output, providing the extra capacity needed for complex multi stage systems or zones. The internally fused secondary provides critical overload protection, preventing