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The Carrier HH19ZA175 Limit Switch is a critical safety component designed for precise thermal monitoring in residential and commercial HVAC equipment
preventing the gas valve from energizing for safety
this is a conversion hardware set that modifies the existing gas valve and manifold assembly
Built for durability in commercial and industrial air handling units
Carrier HH18HC069 Temp Switch 340155-7026 The Carrier HH19ZA175 Limit SwitchThe Carrier HH18HC069 Defrost Temp Switch is a critical field service component designed for precise evaporator coil temperature monitoring in residential and light commercial heat pump systems. This SPST thermal switch, often used as a defrost termination switch, is engineered with a fixed set point to sense frost accumulation and initiate or end the defrost cycle, ensuring optimal heat transfer and preventing compressor slugging. This OEM
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