JOHNSON CONTROLS Humidistat: Surface Mount
The JOHNSON CONTROLS Humidistat (MPN W42AA-1C) is a surface-mount humidifier and dehumidifier control. It operates on an input voltage of 120/240V AC and does not include an outdoor temperature sensor.
SKU 3G-OTH-67470
Also listed as: W42AA1C · W42AA 1C
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The JOHNSON CONTROLS Humidistat (MPN W42AA-1C) is a surface-mount humidifier and dehumidifier control. It operates on an input voltage of 120/240V AC and does not include an outdoor temperature sensor.
Frequently Asked Questions
What is the JOHNSON CONTROLS W42AA-1C humidistat used for?
The JOHNSON CONTROLS W42AA-1C is a surface-mount humidistat used to control humidifiers and dehumidifiers in commercial or industrial HVAC systems. It helps maintain desired humidity levels by switching equipment on or off based on the sensed relative humidity.
What are the specifications of the JOHNSON CONTROLS W42AA-1C humidistat?
The JOHNSON CONTROLS W42AA-1C is a surface-mount humidistat with an input voltage of 120/240V AC. It is compatible with both humidifier and dehumidifier controls and does not include an outdoor temperature sensor. The manufacturer part number is W42AA-1C.
Where to buy the JOHNSON CONTROLS W42AA-1C humidistat worldwide?
You can source the JOHNSON CONTROLS W42AA-1C humidistat through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.
How to install a JOHNSON CONTROLS W42AA-1C surface-mount humidistat?
Mount the JOHNSON CONTROLS W42AA-1C on a wall or vertical surface in the controlled space, away from drafts and heat sources. Connect the 120/240V AC supply per the wiring diagram. Set the humidity setpoint as needed. Always follow local electrical codes and the manufacturer's instructions.
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Common applications for JOHNSON CONTROLSJOHNSON CONTROLS Products
3G Electric supplies JOHNSON CONTROLS humidifier & dehumidifier controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
