Johnson Controls W43A-14 Humidistat 318973-401 this unit ensures proper CFM

this unit ensures proper CFM delivery and static pressure balance

System Synchronization: Optimizes OEM HVAC performance by maintaining precise signal timing between the thermostat and internal relay boards

Once the system pressure falls below the 300 PSIG deactuation point

it maintains a professional aesthetic suitable for clean-room environments or architecturally sensitive commercial spaces

Key Benefits OEM Compatibility: Precision-matched for Lennox systems as a direct replacement for 99K1201

Johnson Controls W43A-14 Humidistat 318973-401 this unit ensures proper CFMThe Johnson Controls W43A 14 Humidistat is a commercial grade dehumidification controller designed for precision moisture management in HVAC systems. Engineered for high voltage applications, this SPDT electromechanical humidistat supports 120, 208, and 240 VAC circuits, making it highly versatile for various field installations. It features a broad 0 to 70% RH range with a fixed 5% RH differential, ensuring stable cycling and preventing equipment