Tekmar Controls 518 Thermostat R-407A Check the rating plate on

Check the rating plate on your appliance

For technicians troubleshooting frequent "open limit" fault codes

and Gibson brands

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

Tekmar Controls 518 Thermostat R-407A Check the rating plate onThe 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