3-in-1 Temperature sensor Manual

3-in-1 Temperature sensor Manual
R
Strap-On Sensor
INSTALLATION INSTRUCTIONS
Outdoor Sensor
3-In-1 Temperature
Sensor
d
wall
utdoor
ip-hole
Outdoor
Sensor
snap-in
location
Immersion, Outdoor, and Strap-On Sensor Installation
Plastic
Tie-Wraps
Around Pipe
System
Strap-On
Sensor
The new Heat-Timer Sensor Enclosure can be used for Immersion, Outdoor, or Strap-On installations. The enclosure material is
designed to tolerate temperatures
up to 220°F/105°C as well as withstand outdoor weather conditions. The package comes complete
Shield
not connected Sensor, Strap-on Tie Wrap, and Outdoor Weather Sealing Label.
with the Enclosure, Temperature
• The sensor wires can be extended up to 500' using a shielded 2-conductor 18 gauge cable (Belden #8760 or equivalent (#18/2)). Shield
• DO NOT ground the shield at the sensor. Connect the Shield at the control using the sensor terminals marked with a "COM"
"O".
Notor
connected
Outdoor Label
• Do not run sensor wires
in
conduit
with
line
voltage
wiring.
on back of Sensor
Conduit
Alert
DO NOT CONNECT the Shield at the sensor end. However, the shield must be connected at
the control sensor terminal marked with "COM" or "O" with one of the other sensor wires.
Figure 1
Immersion Sensor
System Sensor
In Well
Well Locknut
Well
Shield
Not connected
Immersion Sensor Installation
Sensor in Well
Sensor 2-Conductor
Shielded Cable
• T
he Immersion Sensor is designed to be installed in a well (Use NPT Well #904011-00 or equivalent).
• For accurate system temperature reading, place the sensor well approximately 10' feet past the last heating/cooling unit on the
common supply header before any takeoffs.
• The well's threaded locknut should hold the Sensor Enclosure Base in place.
• Insert the sensor into the well and connect the sensor wires to the upper terminals as show in Figure 1.
• Snake the extension cable through any of the openings or knockouts and connect the wires to the lower terminals as shown in Figure
• Screw the Sensor Enclosure Cover to the Base.
• When the control is powered, check for sensor temperature reading.
Strap-On Sensor
Outdoor Sensor Installation
Outdoor Sensor
Seal around
sensor and wall
Outdoor
Sensor
snap-in
location
Mounting
screws
location
Shield
not connected
Outdoor Label
on back of Sensor
Outdoor
drip-hole
Figure 2
Conduit
• L
ocate the sensor in the shade on the north side of the building. The
sensor should away from doors, windows, exhaust fans, vents, or other
possible heat sources and away from direct sunlight.
• The sensor should be mounted approximately 10' feet above ground and
4" from the building wall.
Plastic
• Adhere the Outdoor Label provided to the back of the sensor
base.
Tie-Wraps
• Use the Enclosure Base
bottom knockout for the conduit. Use
the
System
Around Pipe
Strap-On
locknut to hold the conduit
and
enclosure
base
together.
Sensor
• If screws are used to affix the enclosure to the wall, make sure to seal
around the sensor and wall except from the bottom.
• The sensor should be secured to the base as shown in Figure 2.
• Connect the sensor wires to the upper terminals.
Shield
Not connected
• Connect the extension cable wires to the lower terminals.
• Screw the Sensor Enclosure Cover to the Base.
• When the control is powered, check for sensor temperature reading.
Strap-On Sensor
Alert
Immersion Sensor
Well Locknut
System Sensor
In Well
Plastic
Tie-Wraps
Around Pipe
System
Strap-On
Sensor
Shield
Not connected
Strap-On Sensor Installation
Shield
Not connected
Figure 3
Temperature Sensor Ohm Values
TEMPERATURE
(in Degrees °F)
Value
(in Ohms)
TEMPERATURE
(in Degrees °F)
Value
(in Ohms)
-30
117720
100
2914
-20
82823
110
2332
-10
59076
120
1879
0
42683
130
1524
10
31215
140
1243
20
23089
150
1021
25
19939
160
842
30
17264
170
699
35
14985
Well
180
Sensor in Well
583
40
13040
190
489
45
11374
200
412
Sensor 2-Conductor
Shielded
Cable
50
Determining the proper location for the Outdoor Sensor is very
important. The heating control will base its operation on the outdoor
temperature information it receives from this location. If the sensor
is in the sun or covered with ice, its reading will be different from the
actual outdoor temperature.
9944
210
349
55
8714
220
297
60
7653
230
253
70
5941
240
217
80
4649
250
187
90
3667
• F
or accurate system temperature reading, place the sensor approximately
10' feet past the last heating/cooling unit on the common supply header
before any takeoffs.
• Insert the sensor in the middle bottom opening making sure that the
Well
Sensor in Well
concave side of the sensor is facing and touching the pipe.
• Use the provided tie-wraps to hold the sensor and base in place while
Sensorin Figure
2-Conductor 3.
tying it to the pipe as shown
Shielded Cable
• Connect the sensor wires to the upper terminals as show in Figure 3.
• Snake the extension cable through the bottom knockouts and connect the
wires to the lower terminals.
• Screw the Sensor Enclosure Cover to the Base.
• When the control is powered, check for sensor temperature reading.
Troubleshooting
Display shows Sensor OPEN
Check the sensor is connected and the wires are continuous to the
control. Short the sensor terminals at the control. The display should
read SHORT. If it does not, the control may be damaged.
Display shows Sensor SHORT
Remove the wires from the sensor terminals. The display should change
to read OPEN. If it does not, the control may be damaged.
Display shows an Incorrect Temperature Display
Remove the wires from the input terminals. The display should change
to read Open. If it doesn’t, the control may be damaged. Otherwise,
take an ohm reading across the detached sensor wires. The ohm reading
should correspond to the Temperature Sensor Ohm Values Table. If the
difference is within 5°F adjust the Trim of the sensor. Otherwise, the
sensor may be damaged.
R
C O R P O R A T I O N
20 New Dutch Lane, Fairfield, NJ 07004 973-575-4004 • Fax 973-575-4052 • http://www.heat-timer.com
HT #059073-00 B
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