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SUPERSEDES: New
Plant ID: 001-4047
Inventory
Part No.
SMS-1
SMH-1
502-035
NOTE: The SMS-1 Sensor requires Pavement Sensor Housing SMH-1.
Installation
Sensor Housing
Locate the pavement-mounted sensor carefully. The location should be:
•
Centered between runs of hydronic tubing or heater cable;
•
Exposed to precipitation and pedestrian or vehicular traffic; and
•
Away from external heat sources in excess of 185° F. (85° C.).
The SMS-1 sensors can be located up to 2,000 feet (609.6 meters) from the associated
system controls. Use 4-conductor #18 AWG jacketed cable for distances up to 500 feet
(152.4 meters). Use #12 AWG for greater lengths. Insulate and waterproof all splices.
The sensor plate ships without the sensor housing. Before installing the sensor housing
remove the sensor plate, placing the sensor plate and the three machine screws where they
will not be lost or damaged.
Install the sensor housing on a firm, smooth surface such as a precast patio block or similar
masonry module. Refer to Figure 1. Care should be exercised in adjusting the final grade
and level of the sensor to ensure that the sensor surface will be flush with the finished
pavement, and that the adjacent pavement be either level or slightly crowned. A sensor
submerged in puddled water will not function properly. To stabilize the final location of the
sensor prior to paving, insert lengths of reinforcing rod or similar dowels on opposite sides
Use the plastic cover supplied with the SMH-1 to protect the sensor housing during
paving. The sensor plate should not be installed until after paving is complete and the plastic
cover is removed. Caulking may be required between the sensor housing and the paved
surface.
© 2011 Taco Electronic Solutions, Inc.
Item Description
SMS-1 Assembly and Accessories (with 60' leads)
SMH-1 Pavement Sensor Housing
Installation Manual (this document)
Duct Seal, 1 lb. (inc. with SMS-1)
Screw, Set, Hex Socket, 3/8-16, 0.25" L (Qty 3) (inc. with SMS-1)
Screw, Machine, S-BH-SS, #8-32, 0.375 L (Qty. 3) (inc. with SMS-1)
Hex L-Key, 3/16 (inc. with SMS-1)
502-035
EFFECTIVE: October 28, 2011
1
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Summary of Contents for Taco Electronic Solutions iWorX SMS-1
- Page 1 Use the plastic cover supplied with the SMH-1 to protect the sensor housing during paving. The sensor plate should not be installed until after paving is complete and the plastic cover is removed. Caulking may be required between the sensor housing and the paved surface. © 2011 Taco Electronic Solutions, Inc.
- Page 2 Conduit Conduit Conduit Conduit Conduit Use individual 3/4" (20 mm) rigid conduit for the entire installed length of the sensor cable, Use individual 3/4" (20 mm) rigid conduit for the entire installed length of the sensor cable, Use individual 3/4" (20 mm) rigid conduit for the entire installed length of the sensor cable, Use individual 3/4"...
- Page 3 housing and adjust housing flange. The flange can be raised up to 0.63"(16 mm) to allow sensor surface to be aligned with pavement surface. A low sensor will pool water and not function properly. See Figure 2 for a schematic diagram of the sensor wiring. RED 24 VAC RELAY WIRE 1 Internal...
- Page 4 REPRESENTATIONS AND WARRANTIES This Document is subject to change from time to time at the sole discretion of Taco Electronic Solutions, Inc. All updates to the Document are available at www.taco-hvac.com. When installing this product, it is the reader’s responsibility to ensure that the latest version of the Document is being used.