while the integrated isolating diaphragm prevents discharged media from corroding critical internal components

OEM Compatibility: Engineered as a drop-in replacement for Carrier 38AKS and 38AQS series condensing units

Whether used in chilled water lines or heating loops

Direct OEM Fit: Guaranteed physical and electrical compatibility with Carrier-family gas furnaces

Carrier HH18HH130 Limit Switch 320734-701 while the integrated isolating diaphragmThe Carrier HH18HH130 Limit Switch is a critical safety component designed for precise thermal monitoring in high efficiency furnace and heating systems. This HVAC high limit replacement functions as a normally closed thermal cutout, engineered to break the electrical circuit if the heat exchanger temperatures exceed the factory defined safety threshold. Specifically calibrated for Carrier furnace parts compatibility, the HH18HH130 ensures proper