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this high-limit safety control is designed to break the electrical circuit if the heat exchanger temperatures exceed the 155-degree Fahrenheit threshold
maintaining the same form factor for efficient field swaps
Compatibility depends on the seat material
offering superior volumetric efficiency and quieter operation compared to traditional reciprocating models
Key Benefits for Technicians: Universal PopTop Design: Allows for one-handed actuator removal
Trane VAL12789 TXV 321042-401 this high-limit safety control isThe Trane VAL12789 TXV is a critical OEM replacement thermal expansion valve designed for high capacity 6 ton residential and light commercial evaporator coils. Engineered specifically for R 410A refrigerant systems, this thermostatic expansion valve maintains precise superheat by modulating flow based on the thermal load, preventing liquid slugging and protecting the compressor. Featuring a 79 PSIG outlet pressure rating, it ensures balanced
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