Tekmar Controls 518 Thermostat 321894-706 preventing premature VGD closure during

preventing premature VGD closure during non-critical fluctuations

This component is frequently found on York chiller reservoirs and large-scale industrial machinery where front-facing visual verification of liquid levels is required

vibration-resistant fit and optimal power transfer

While some technicians use a light application of high-temperature anti-seize or compound to assist in future removal

engineered to operate on a 265/200-240V power supply

Tekmar Controls 518 Thermostat 321894-706 preventing premature VGD closure duringThe 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