Hired-Hand Emergency Back-Up and Alarms: TEMPERATURE SENSOR JUNCTION BOX - Manual

INSTALLATION INSTRUCTIONS
TEMPERATURE SENSOR JUNCTION BOX
HIRED-HAND MFG., INC. • 1733 County Rd 68 • Bremen, Alabama 35033 · Phone 256-287-1000 • Fax 256-287-2000
Part No. 4801-5328 rev 8-05 Page 1 of 2
Tools and Cable Required
Small flat-head screwdriver Wire & Cable Strippers
NOTE: Use 18-24 gauge, 2 conductor, stranded cable
with a bare shield wire. Ordered Separately.
1503-2427 CBL SJT 18-2 Yellow (sensor)
DESCRIPTION
The Temperature Sensor Junction Box is provided to
allow easy installation and removal of the Temperature
Sensor during initial installation or maintenance and
eliminate unnecessary splicing 15-25’ from the sensor.
The assembly includes a temperature sensor, enclosure,
cable fittings, a terminal block, wiring label, and a
sensor ID label for marking the number and type of
sensor.
If these specifications are followed, the likelihood of
invalid readings by the controller or damage to the
sensors or the controller is decreased. The long lengths
of cable are capable of acting as a large antenna.
Therefore, if care is not taken, they can become the
weak link of your environmental control system.
When the kit is received, check for shipping damage or
missing parts.
Place Temperature Sensors
(1) Determine the approximate location for each
temperature sensor. Normally, the sensors are
equally spaced although they may be adjusted to
accommodate zone heating in some applications.
(2) Do not place sensors in close proximity to radiant
brooders or in the path of a direct-fired heater.
This will cause the sensor to read values that are
much higher than the actual average of the area.
(3) Place sensors as close to the animal’s
environment as possible without being in reach of
the animals. If it is in reach of the animals, the
animals will eventually destroy the sensor.
(4) If you are using an outside temperature sensor,
care must be taken to achieve an accurate reading.
Here are some suggestions:
• If the temperature sensor is placed in direct
sunlight, place the sensor inside a PVC tube
or the equivalent to avoid the UV heating
effect.
• Do not hang directly under non-insulated
eave. This will cause unexpected radiant
heat that will skew the result during the
daylight hours.
Extending Cable Thru Building
(5) Conditions to avoid:
• Do not extend sensor cable in close proximity to
AC voltage lines. (Allow at least 6 inches).
• Do not extend sensor cable through or in close
proximity to metallic pipes such as conduit or
gas lines. If the cable is in close proximity to
metallic pipes, it will increase your chances of
lightning damage.
Junction Box Installation
(6) Always install the Junction Box with the
temperature sensor pointing downward. In most
installations, the junction box will be suspended
from the ceiling by the sensor cable as shown in
Figure 2.
Figure 2: Suspended Junction Box
Spliced Cable
Inside Utility Box
Temperature
Sensor
Customer
Supplied
Sensor Cable
Figure 1
Temperature Sensor Junction Box
Temperature
Sensor
Sensor ID
Label