Designed for multi-refrigerant compatibility

ensuring the burner circuit is interrupted if internal temperatures exceed safe operating parameters

OEM Compatibility: Seamlessly replaces the discontinued 076243-030 without the need for additional gas train modifications

Can I use this tee with R410A systems

and PDP series

Reznor 121275 Block Designed for multi-refrigerant compatibilityThe Reznor 121275 Stack Flue Block is a high limit safety component engineered specifically as an Energy Cutout Device (ECO) for commercial and industrial gas fired heating units. Designed to monitor the integrity of the ventilation system, this blocked vent switch acts as a critical failsafe by measuring exhaust temperatures at the flue. If the sensor detects a restriction, backflow, or overheating condition where temperatures reach the 275F trip