Honeywell M39146 L2 WiFi Water Sensor and Switch Installation Guide

: August 11, 2024
: Honeywell

Table of Contents

Honeywell M39146 L2 WiFi Water Sensor and Switch
Product Information
Product Usage Instructions
Installation
Placement and Sensing **
Specifications
FCC Regulations
Troubleshooting
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Honeywell M39146 L2 WiFi Water Sensor and Switch

Product Information

Specifications

ProductName: L2 WiFi Water Sensor and Switch
Model Number: M39146
Power Supply: 24V
Functions: Water sensing and circuit control

Product Usage Instructions

Before Installation:

Read the instructions carefully.
Check if the product is suitable for your application.
Installer must be a trained, experienced service technician.
After installation, verify the product operation using the instructions.

App Installation

Download the Resideo app on your mobile device.
Sign up for an account and select L2 WiFi Water Sensor and Switch from the device list.
If you already have an account, add your device from the list.

Connecting the Device
The L2 WiFi Water Sensor and Switch can be wired to 24V equipment to open or close a circuit when water is sensed. Follow the wiring diagram provided:

Wiring Functions

Color	Description	Wire Function
Red (R)	24V Power Supply	Device Supply
Black (C)	Power Supply GND	Device Supply
White (3)	Normally Open	Dry Contact
Orange (2)	Normally Closed	Dry Contact
Green (1)	Common	Dry Contact

Installation Continued
Follow the wiring example to connect the device properly. For further assistance, refer to additional diagrams or scan the QR code provided.

Frequently Asked Questions (FAQ)

Q: Can the L2 WiFi Water Sensor and Switch be used outdoors?
- A: No, this product is designed for indoor use only.
Q: What is the maximum distance the sensor can be from the Wi-Fi router?
- A: The sensor can typically operate within a range of up to 100 feet from the Wi-Fi router, depending on obstructions and interference.

L2 WiFi Water
Sensor and Switch
Installation Guide

Online Guides

Included in Box

Before Installation

Read these instructions carefully. Failure to follow instructions can damage the product or cause a hazardous condition.
Check the product information to see if product is suitable for your application.
Installer must be a trained, experienced service technician.
After completing installation, use these instructions to verify the product operation.

Download App

Download the Resideo app onto your mobile device.
Launch the app and sign up for an account. Select L2 WiFi Water Sensor and Switch from the device list.

Note: If you already have an account, tap the add button and select your device from the list.

Connect to App
Follow instructions in app to complete setup.

Installation

Wire Device
L2 WiFi Water Sensor and Switch can be wired to 24V equipment, so that when water is sensed, the sensor either opens or closes a circuit. Typical applications include preventing HVAC condensation pan overflow, turning on water pump when water is sensed, etc.
Connect wiring as shown in the following wiring diagram. For additional diagrams, scan the QR code at the right. Wires may be extended if needed using provided wiring nuts.

Wiring Example
L2 locks out compressor when wet.

C wire is optional or not used on some thermostats.
System types vary. Wire the W, G, etc. as normal from the thermostat to HVAC.
If Y2 is used, or the system is zoned, see the diagrams in the online file using the QR code.

Note: Use caution if locking out heating in locations in which pipes could freeze.

For More Application Examples…
Go to: https://customer.resideo.com/resources/techlit/TechLitDocuments/33-00000S/33-00631EFS.pdf

Water Sensor and Switch Diagram

Placement and Sensing **

**

Do not submerge sensor in water

Wall Mounting
Device can be installed on a wall while using the optional cable sensor.

Floor Placement
Device can be placed on the floor using the on-device water sensing contacts and the optional cable sensor.

Note: For WiFi operation, device cannot be mounted inside a metal box.

Optional Cable Sensor
To install the cable sensor, remove the plug at the bottom of the device and plug in the cable sensor.

Accessory cable sensors (WLD3CABLE sold separately) can be connected to extend the cable and increase water sensing area. The entire length of the cable is a water sensor.

Note: The cable sensor jack is NOT for plugging in an adaptor. Doing so could damage the water sensor.

When a Leak is Detected

To Silence Alerts

Press the sensor’s button or tap the mute button in the app to mute the siren.
After you’ve addressed the cause of the alert, remove sensor and cable sensor from water and wipe dry.

Test Mode

Press button 1s to wake device solid blue LED (connected) or white LED (not connected).
Then press the button three times. The LED should start blinking red.
In test mode, alarm sounds and switches change position. (Switch for Orange and Green wires open. Switch for White and Green wires closed.)
To return to normal function, press the reset button 3 more times.
Test mode will not function during an active alarm or a firmware update.

Specifications

Part Number : TWLD3005-001
Operating Temperature: 32 °F to 140 °F (0 °C to 60 °C)
Operating Humidity: 5 to 95% Non-Condensing
S hipping Temperature: -22 °F to 158 °F (-30 °C to 70 °C)
Shipping Humidity: 10 to 95% Non-Condensing
Buzzer Alarm SPL: 100 dBA @ 10cm
Physical Dimensions: 3.9 x 2 x 1.1 in (99.4 x 52.4 x 28.6mm)
Color: Grey/White
Standards : UL/CSA 6073
Supply Voltage : 24VAC/VDC
Switches Rating : 24VAC/VDC
- Maximum Voltage : 24VAC/VDC
- Maximum Current : 5A Weatherproofing: IP44
Action : Type 1 SELV Class 2
Control Pollution Degree : 2
Rated Impulse Voltage : 330V
Purpose of Control: Operating electronic appliance control
Construction of Control: Independently mounted control

Lighting Functions

LED Light Light Color Light Behavior Device Status

M39154

NOTE: Device may be used for water sensing, siren, and relay action without pairing.

FCC Regulations

§ 15.19 (a)(3)
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions

This device may not cause harmful interference, and
This device must accept any interference received, including interference that may cause undesired operation.

IC REGULATIONS RSS-GEN
This device complies with Industry Canada’s license-exempt RSSs. Operation is subject to the following two conditions

This device may not cause interference; and
This device must accept any interference, including interference that may cause undesired operation of the device.

FCC Warning (Part 15.21) (USA only)
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

RESIDEO-Extended Producer Responsibility
The product should not be disposed of with other household waste. Check for the nearest authorized collection centers or authorized recyclers. The correct disposal of end-of-life equipment will help prevent potential negative consequences for the environment and human health.

FCC Note
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.

This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.

If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures

Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.

ISED Statement
This equipment complies with FCC and ISED radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and a human body.

Troubleshooting

Device not Powering On
Check wiring connections and ensure wires are connected to the proper terminals.
Bluetooth Pairing Failed
If bluetooth pairing fails at any stage, perform a factory rest.
Factory Reset
Press and hold button for 15s until solid red LED and two beeps, indicates reset in progress. Once LED is off, reset is complete.
Resideo Technologies, Inc.
1985 Douglas Drive North, Golden Valley, MN
55422 1-800-468-1502
33-00625EFS—04 SA 03-24
www.resideo.com