Bard HVAC 8403-038 Humidity Control 320788-703 The NAE 7 ZAA model

The NAE 7 ZAA model features a 5/8" x 7/8" ODF sweat connection and a straight-through body for streamlined installation in tight mechanical spaces

Calibrated -0

For technicians servicing Johnson Controls or York equipment

If the mesh is torn or significantly corroded

such as compressor start-up or shutdown

Bard HVAC 8403-038 Humidity Control 320788-703 The NAE 7 ZAA modelThe Bard HVAC 8403 038 is a professional grade non electric humidity control specifically designed for industrial HVAC systems and wall mount units. This SPDT humidity controller features a wide 125F maximum ambient temperature rating and a relative humidity range of 20% to 80% RH. Built for precise humidity regulation, it operates with a nonadjustable 5% nominal differential, ensuring stable moisture levels for sensitive equipment and critical