If you are servicing a multi-stage heat pump with auxiliary heat

The 196688 is calibrated to specific factory standards

use the black and orange wire combination

This refrigerant leak detection system ensures compliance with ASHRAE 15 and local safety codes by providing rapid response times in high-occupancy commercial environments

Designed for heavy-duty HVAC 23G38 replacements

Carrier 52CQ402484 Heater Assembly Freon If you are servicing aThe Carrier 52CQ402484 Heater Assembly is a critical replacement component engineered for high performance Packaged Terminal Air Conditioner (PTAC) systems, specifically designed for compatibility with Carrier 52CQC515351AA series units. This robust heater assembly is the primary thermal source in commercial and industrial climate control setups, providing reliable heat transfer and consistent airflow during the cooling season transition. Built to