KMC Controls STE-1451 - Manual

STE-1451 1 Installation Guide
Installation Guide
Contents
Mounting 1
Connections and Wiring 1
Maintenance 1
Specifications 1
Configuration 2
Important Notices 2
More Information 2
Outside Air Temperature Sensor
STE-1451
Mounting
Maintenance
No routine maintenance is required. Each compo-
nent is designed for dependable, long-term reliability
and performance. Careful installation will also
ensure long term reliability and performance. If dirt
clogs the air holes at the bottom, remove it.
Connections and Wiring
1. Remove the two cover screws and cover.
NOTE: Removal of only one screw is absolutely
required. The other screw can be loosened,
and the cover can be swung out of the way.
2. Feed wires through the conduit opening.
3. Make connections to the two wire leads with
either butt-splices or solder. (Using wire nuts is
not recommended.) The two-wire sensor is not
polarity sensitive.
4. Plug the conduit with plumber’s putty, painter’s
putty, caulk, or other sealant to prevent air
infiltration.
5. Check that the rubber weather gasket is placed
correctly between the enclosure and cover.
6. Reinstall the cover and tighten the screws to
create a weather-resistant seal.
Designed specifically for outside air temperature
measurement, this device comes in an aluminum LB
enclosure (NEMA 4 and IP66).
For best results, locate the sensor on the north side
of the structure (when located north of the equator)
high under the eaves or another protected area to
prevent incorrect readings from direct sunlight and
damage due to the elements. Also avoid proximity to
other heat sources, power wires, or a large thermal
mass.
1. Run 1/2" conduit through the wall.
2. Attach the conduit to the sensor enclosure’s CW
1/2" NPT fitting with a suitable coupler (such as a
Chase closed nipple).
Note: The sensor air holes must face down to
prevent the accumulation of dirt or water.
Down
North
1/2"
Conduit OAT Sensor
Specifications
Sensor Type III thermistor, 10K ohm
@ 77° F (25° C)
Temperature Limits –4 to 221° F (–20 to 105° C)
Wiring
22 AWG wire leads
Case Aluminum LB