Tekmar Controls 518 Thermostat R-407A typically located between the compressor

typically located between the compressor and the condenser coil

Key Benefits Enhanced Safety: Triggers immediate fuel shut-off during ignition failure to prevent hazardous gas buildup

an open circuit when the compressor is cool typically indicates a failed bimetal switch

Mount the sheave as close to the bearing as possible to minimize overhung load

Tekmar Controls 518 Thermostat R-407A typically located between the compressorThe Tekmar 518 Thermostat is a professional grade, non programmable 24Vac one stage heat thermostat designed specifically for precision in hydronic radiant floor heating systems. Engineered to replace the legacy 507 and 508 models, this unit utilizes advanced Pulse Width Modulation (PWM) technology to eliminate the temperature swings common with standard on off controls, ensuring a stable thermal mass within the slab. The auxiliary sensor input offers