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Installation & Operation Manual
Snow/Ice Sensor 090
Snow/Ice Sensor Socket 091
Introduction
The Snow/Ice Sensor 090 is an in
ground sensor used with Watts Radiant
snow melting controls 653 and 654, and
some tekmar snow melting controls to
automatically detect snow or ice on a
driveway or walkway. The snow/ice sensor
has 65 ft (20 m) of wire. This product
can be used in applications ranging
from residential driveways to commercial
building fronts such as emergency access
entries. This sensor allows the above
Snow/Ice Sensor 090
3/16"
(5 mm)
Cable length 65'
(20 m)
Snow/Ice Sensor 090 Features
•
Automatic snow/ice detection
•
Slab temperature sensing
•
Long wire included so in field splicing
is not necessary
•
Designed for long life in driveway and
walkway installations
•
65 ft (20 m) of cable
3–7/16"
(87 mm)
In slab, w 65 ft cable
snow melting controls to automatically
operate the snow/ice melt system only
when snow or ice is present, while also
providing slab temperature feedback to
the control.
The Snow/Ice Sensor Socket 09 is
designed to provide a mounting solution
for the Snow/Ice Sensor 090. It is intended
to be installed directly into a concrete slab
when the slab is poured, so that the 090
can be installed into it once dry.
1–3/4"
(45 mm)
3/4"
(19 mm)
Snow/Ice Sensor Socket 091 Features
•
Provides mounting solution for
Snow/Ice Sensor 090
•
Includes mounting plate
of 8
Snow/Ice Sensor Socket 09
3–1/2" (89 mm)
3–1/8" (80 mm)
Ø 7/8" (22 mm)
3–13/16"
(97 mm)
© 203 Watts Radiant
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Summary of Contents for Watts Snow/Ice Sensor Socket 091
- Page 1 3/16" (45 mm) (5 mm) 3–13/16" (97 mm) Cable length 65' (20 m) 3/4" (19 mm) Ø 7/8" (22 mm) Snow/Ice Sensor 090 Features Snow/Ice Sensor Socket 091 Features • Automatic snow/ice detection • Provides mounting solution for Snow/Ice Sensor 090 • Slab temperature sensing • Includes mounting plate • Long wire included so in field splicing is not necessary •...
- Page 2 It is your responsibility to ensure that this sensor is safely installed according to all applicable codes and standards. Watts Radiant is not responsible for damages resulting from improper installation and/or maintenance. Read this Manual BEFORE using this equipment. Failure to read and follow all safety and use information can result in personal injury, property damage, or damage to the equipment. Keep this Manual for future reference. Step 1 - Check the Contents Check the contents of this package. If any of the contents listed are missing or damaged, please refer to the Limited Warranty and Product Return Procedure on the back of this brochure and contact your wholesaler or Watts Radiant sales representative for assistance. Order number 81005661 includes: • One Snow / Ice Sensor 090 with “O” ring • Four, #6-32 x 3/8" screws • Four, #4-40 x 7/6" screws • One Installation & Operation Manual Order number 81003753 includes: • One Snow / Ice Sensor Socket 09 • One protective plastic plug • One plastic mounting plate • Eight, #6-32 x 3/8" screws • One Installation & Operation Manual Step 2 - Sensor Installation - - -- -- -- - -- - - - - - - - - - - - - - -- -- - -- -- - -- - -- -- - -- - - Location of the Sensor •...
- Page 3 Failure to provide adequate drainage under the socket Mounting Plate may reduce the life expectancy of the snow / ice . Drainage hole sensor. 2. Socket screw holes The mounting plate can be fastened to the ground by driving /2" (2.7 mm) rebar through the four holes located 3. Rebar holes on each of the four corners and then tying the mounting 4. Rebar tie holes plate to the rebar. 5. Conduit tie holes 3 of 8 © 203 Watts Radiant...
- Page 4 . Cut four pieces of rebar at least 2" (300 mm) long. 2. Drive the rebar into the ground through each of the mounting plate rebar holes. Leave approximately 2" (50 mm) of rebar above the ground. 3. Cut several 2" (300 mm) pieces of steel wire. 4. Form a “U” shape and pull wire through the rebar tie hole from the bottom to the top side. 5. Repeat by pulling the “U” shape from the top to the bottom side. 6. Repeat (4) and (5) for each of the four corners. 7. Cross the wire, then wrap around the rebar. 8. Twist wire using pliers to tighten. The mounting plate also has conduit tie holes to allow a cable tie or steel wire to fasten the conduit to the mounting plate. - -- --- - -- -- -- -- - - - - - - - - - - - - - -- - -- -- - -- - -- -- - -- -- - -- Placing Concrete A plastic plug is provided with the socket to prevent it from being accidentally filled with concrete. The plastic plug is the same thickness as the sensor flange. This allows the...
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Page 5: Maintenance
- - - - - - --- ---- - - - - - ---- - - - - - - - - - - -- -- -- --- -- -- -- -- -- --- - Maintenance The Snow / Ice Sensor is installed in a harsh environment. Accumulation of dirt, salty grime, etc., on its surface will inhibit proper water detection. It should be checked on a regular basis and, when necessary, cleaned. Before cleaning, the control power should be shut off to prevent the control from entering the snow melt mode. Next, use a soft bristle brush and warm soapy water to clean the sensor surface. Do not use a steel wire brush as this will damage the sensor. Use a paper towel to thoroughly dry the sensor surface. After cleaning, re-power the control. The Snow / Ice Sensor 090 must be operated by a Watts Radiant Snow Melting Control 653 or 654, or a compatible tekmar Snow Melting Control. Operation of the sensor by other control systems may result in electrolysis failures not covered by the sensor warranty. Step 3 - Electrical Connections The snow / ice sensor cable has 5 wires: Red, Black, Blue, Yellow, and Brown. The wires connect to the respective Red, Black, Blue, Yellow and Brown terminals on the Snow Melting Control. Snow Melting... - Page 6 Step 4 - Test the Sensor When performing these tests: • The sensor head should be installed in the slab. • The five cable wires at the control should be disconnected. • Use a good quality electrical testing meter with an ohm scale range of 0 to 2,000,000 Ohms. The sensor has two 0k Ohm thermistors. One reads slab surface temperature, and the other checks sensor heater temperature. If the sensor has been disconnected from the control for an hour or more, the readings for both thermistors should be very close. Using the ohmmeter and standard testing practices, measure the resistance between: (a) the yellow and black sensor wires (sensor temperature), and (b) the brown and black sensor wires (slab temperature). The table below lists the expected resistance values at various sensor temperatures. Measure the resistance between the blue and black wires. When the sensor surface is dry, the reading should be 2,000,000 Ohms. When the sensor surface is wet it should be between 0,000 and 300,000 Ohms. Measure the resistance between the red and black wires of the heating element. This reading should be close to 50 Ohms. Temperature vs. Resistance Table Temperature Resistance Temperature Resistance °F °C °F °C 490,83 34,558 405,70...
- Page 7 Literature ES-WR-Snow_Socket-09, IOM-WR-Snow_Ice-090 Packaged weight .5 lbs (670 g) Socket material Silicon brass Dimensions 3-3/6" H x 3-/2" OD (97 mm H x 89 mm OD) Approvals CSA C US with Watts Radiant Snow/Ice Sensor 090 One polyethylene protective cap, one polyethylene -Included mounting plate and eight #6-32 x 3/8" screws WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information: www.watts.com/prop65 7 of 8 © 203 Watts Radiant...
- Page 8 (a) Any incidental or consequential damage, including inconvenience, loss of time or loss of income. (b) Any labor or materials required to repair or replace the Product that are not authorized in writing by the Company. (c) Any labor or materials required to remove, repair or replace materials other than the Products. (d) Any freight or delivery costs related to the Product or any related electrical products. Watts Radiant assumes no responsibility under this Limited Warranty for any damage to the Product caused by any trades people, visitors on the job site, or damage caused as a result of post-installation work. This Limited Warranty shall be invalidated by any abuse, misuse, misapplication or improper installation of the Products. The staff at the Company is available to answer any questions regarding the proper installation or application of the Product at this toll-free phone number: 800-276-249 (USA/International) or 888-208-8927 (Canada). If you are ever in doubt about the correct installation procedure to follow, or if the Product appears to be damaged, you must call us before proceeding with the installation or proposed repair. WATTS RADIANT DISCLAIMS ANY WARRANTY NOT PROVIDED HEREIN, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. WATTS RADIANT FURTHER DISCLAIMS ANY RESPONSIBILITY FOR SPECIAL, INDIRECT, SECONDARY, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING FROM OWNERSHIP OR USE OF THIS PRODUCT, INCLUDING INCONVENIENCE OR LOSS OF USE. THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE FACE OF THIS DOCUMENT. NO AGENT OR REPRESENTATIVE OF WATTS RADIANT HAS ANY AUTHORITY TO EXTEND OR MODIFY THIS WARRANTY UNLESS SUCH EXTENSION OR MODIFICATION IS MADE IN WRITING BY A CORPORATE OFFICER. Some states/provinces do not allow the exclusion or limitation of incidental or consequential damages and some states/provinces do not allow limitations on how long implied warranties may last. Therefore, the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights and you may also have other rights, which vary from state to state or province to province. SO FAR AS IS CONSISTENT WITH APPLICABLE STATE/PROVINCIAL LAW, ANY IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF MANUFACTURE. Effective: May , 203. This warranty applies to all Products purchased after this date. A Watts Water Technologies Company USA: Springfield, MO • Tel. (800) 276-249 • Fax: (47) 864-86 • www.wattsradiant.com Canada: Burlington, ONT. • Tel. (905) 332-4090 • Fax: (905) 332-7068 • www.watts.ca IOM-WR-Snow_Ice-090_09 324 © 203 Watts Radiant...