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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
including a nut driver or Allen wrench for the set screw
For two-way sweat valves
For contractors demanding precise hydronic system control
while the IP65 enclosure rating protects internal components against dust and water ingress
Flexible Applications: Rated for up to 2 HP at 277 VAC
Carrier HH19ZA155 Limit Switch 323613-751 including a nut driver orThe Carrier HH19ZA155 Limit Switch is a critical safety component designed for precise thermal monitoring in residential and commercial HVAC systems. Engineered for automatic reset functionality, this disc style switch features a normally closed circuit that opens upon reaching its fixed setpoint of 155F to prevent heat exchanger damage and potential fire hazards. Once the system temperature drops to the 115F close threshold, the circuit re engages,