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

typically located between the compressor and the condenser coil

Most OEM panels require the application of a high-temperature RTV silicone or a specific foam gasket during installation to ensure a gas-tight seal at the heat exchanger interface

Check the rating plate on your appliance

Universal Compatibility: Standard 10K-2 curve integrates seamlessly with most major BAS and DDC controllers

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

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