Carrier HH12ZB190 Limit Switch This adapter is essential for

This adapter is essential for maintaining the 90 lb force output required in modern hydronic balancing

ensuring electrical safety and reducing the risk of signal interference

always verify the orifice size and inlet pressure ratings to maintain optimal lock-up performance and avoid seat wear

providing stable performance with most common refrigerants and lubricants found in 200RB systems

Carrier HH12ZB190 Limit Switch This adapter is essential forThe Carrier HH12ZB190 Limit Switch is a critical OEM safety component engineered for HVAC high limit protection in gas furnaces and packaged units. As an automatic reset limit switch, this part is designed to open the electrical circuit when internal plenum temperatures reach 190F (cut out) and automatically close once the temperature drops to 150F (cut in). This Normally Closed (NC) switch features a 3 inch insertion length, ensuring accurate sensing