Manufacturer: Johnson Controls
Description: WATER DETECTOR-SPDT
Category: Hydronic Controls
The WD-1B Water Detector features gold-plated probes
and microchip technology for dependable detection of
conductive liquids. The WD-1B can be operated from 11
to 27 volts AC or DC. For application flexibility, SPDT
contacts are provided to connect to a monitoring system.
A height adjustable, cast aluminum, weatherproof enclosure
is standard. A green LED visible outside the box
indicates power. A red LED indicates water detected.
• Weatherproof enclosure
• Easy to install
• SPDT alarm contacts
• 11 to 27 VAC or VDC
• Reliable operation
• LED's for power and alarm indication
• Adjustable detection level
The WD-1B can be used with any “contact-closure” monitoring
panel. The SPDT contacts may be wired
Normally-Open or Normally-Closed, allowing wiring flexibility
to handle most installations.
Secure by applying a silicone adhesive to the mounting
feet, and placing the sensor in the area to be protected.
For more permanent installations, fasten the sensor using
the 0.19" holes provided in the mounting feet with #6 or
#8 screws. The legs are adjustable (1.5") for precise water
Replaces Part Numbers: WD-1B, CARWD-1B