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1P is the direct replacement for GDE136
For contractors demanding reliable flow control in hydronic systems
Whether you are servicing a fleet of material handling equipment or a specialized industrial control system
Exact OEM Specifications: Maintains system integrity by matching original factory performance curves
What happens if I over-pressurize the sensor
Lochinvar & A.O. Smith 100167799 Control Board Refrigerant 1P is the direct replacementAs a veteran tech, you know that a glitchy boiler often traces back to the primary logic center. The Lochinvar & A. O. Smith 100167799 Control Board is the definitive OEM replacement part for high efficiency hydronic systems. This integrated control board is a direct, drop in successor to the discontinued RLY30043, ensuring 100% circuit board compatibility without requiring harness modifications. Engineered specifically for the Lochinvar Knight
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