This specific model is optimized for 24VAC systems commonly found in North American HVAC equipment

it ensures compatibility with series such as the WA

consult our team for a dedicated ZF or low-temp reciprocating model

Key Benefits: OEM Compatibility: Exact replacement for York and Coleman S1-024-35584-000 models

Carrier HH18HV135 Limit Switch 321702-401 This specific model is optimizedThe Carrier HH18HV135 Limit Switch is a critical OEM replacement part designed for high limit thermal protection in residential and commercial HVAC systems. This disc style sensor features a normally closed (NC) configuration that triggers an open circuit at 135F to prevent heat exchanger damage or unsafe operating conditions. Once the temperature drops to 110F, the automatic reset capability restores the circuit, ensuring continuous system operation