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Precise Calibration: Fixed 240°F open and 210°F close temperatures prevent nuisance tripping while ensuring safety
Durability: Constructed with components resistant to moisture and flue gas byproducts often found in the inducer transition
this specific model is calibrated for low-temperature detection (26°F/41°F)
Designed to manage the electrical power supply during critical start-up cycles
Lennox 43H88 Relay Precise Calibration: Fixed 240°F openThe Lennox 43H88 Blower Relay is a heavy duty 3PDT (Three Pole Double Throw) electromagnetic switch engineered for precise load management in commercial and residential HVAC systems. Operating on a 24V coil voltage, this inductive rated relay is a direct replacement for the legacy Lennox 43H8801, ensuring a 1: 1 fit for technicians servicing Lennox packaged units and heat pumps. With a 15 Amp contact rating, the 43H88 provides the switching capacity
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