Superior Control: High rangeability (>100:1) coupled with a linear flow profile allows for precise modulation even at low flow rates

the start relay likely needs testing for continuity across the S and M terminals

Common Questions Where should the Aprilaire 8052 be mounted for outdoor readings

allowing for granular control over positive

allowing for precise airflow management to maintain system balance and efficiency

Markel RK120EAA Wall Thermostat 340155-7026 Superior Control: High rangeability (>100:1)The Markel RK120EAA Wall Thermostat is a professional grade low voltage heat only thermostat engineered for precise climate control in commercial and industrial environments. This analog wall mounted thermostat is highly versatile, supporting both 24VAC and millivolt systems, making it a reliable choice for retrofitting older equipment or installing new fan forced unit heaters. It features sealed contacts for enhanced longevity in demanding conditions