The auto-reset version

Precise Thermal Control: Maintains accurate timing sequences for heating elements to optimize energy consumption and airflow

it features a durable Buna-N O-ring and a protective cap to shield internal components from debris

Can this valve be used on 3-ton or 5-ton units

supporting up to 250 PSI for air and 200 PSI for water and light oil

Carrier 30GT515217 EXV Board R-410A The auto-reset versionThe Carrier 30GT515217 EXV Board is a high precision, programmed electronic expansion valve board engineered for advanced refrigerant metering in commercial chillers. As a critical replacement for legacy part numbers HK50AA026 and BRD 3907, this genuine OEM Carrier part provides the exact logic required to modulate electronic expansion valves (EXV) based on real time superheat data and refrigeration load. Operating on 50 60Hz single phase power, the