Troubleshooting
About this task:
TE-6800 Series Temperature Sensors are recommended
for use only with Johnson Controls
®
digital controllers. If
the TE-6800 is not functioning properly, use the following
procedure to identify the problem and determine a
solution:
1. Check that the TE-6800 is mounted in a location
indicative of the space temperature (for example,
away from drafts or sunlight).
2. Check the wiring:
- Verify that the wiring is correct. The modular
jack connector must be inserted with the
proper polarity (not reversed). Misalignment
can cause damage.
- Check all supply voltage connections. See
Figure 2, Figure 3, or Figure 4, if necessary.
3. Check the settings:
- Verify that any scaling modifications, setpoint
adjustments, and overrides have been saved
and downloaded to the controller.
- Check the override status (Temporary
Occupancy mode vs. Unoccupied mode) at the
controller.
- Check the setpoint settings.
4. Confirm DIP switch positions if:
- the LED remains on or is dim
- the room sensor reading is outside of the
normal range for the space being sensed
Note:
Make sure the DIP switch setting is
correct for the controller used with the TE-6800.
5. Replace the TE-6800 if the troubleshooting
suggestions fail to remedy the problem.
Repair Information
Do not field repair the TE-6800 temperature sensors. As
with any electrical device, keep the air vents clean and
free from dust or obstruction. If the TE-6800 temperature
sensor fails to operate within its specifications, replace
the unit. For a replacement sensor, contact the nearest
Johnson Controls representative.
Technical Specifications
Table 5: TE-6800 Series Temperature Sensors technical specifications
Specification
Description
Temperature Sensor
1000 ohm thin-film nickel
Temperature Coefficient
Approximately 3 ohms per F° (5.4 ohms per C°)
Reference Resistance
1000 ohms at 70°F (21°C)
Nickel Sensor
Accuracy
±0.34F° at 70°F (±0.18C° at 21°C)
Temperature Sensor
1000 ohm thin-film platinum
Temperature Coefficient
Approximately 2 ohms per F° (3.9 ohms per C°)
Reference Resistance
1000 ohms at 32°F (0°C)
Platinum Sensor
Accuracy
±0.35F° at 70°F (±0.19C° at 21°C)
Range
Warmer/cooler
Setpoint
Resistance
1500 Ohms
Sensor Response
Time
10 minutes at 10 feet per minute
Modular Jack
8-position modular jack connector
Field
Connections
Terminal Block
Screw type terminals for 18 to 24 AWG wire
Zone Bus Access
6-pin connector with front bottom access for a laptop with HVAC PRO software and CVTPRO
converter
Manual Override
Integral momentary push button (DIP switch selectable)
LED Light
Green LED light indicates two modes of operation (VMA1200 and VMA1400 Series controllers only)
Ambient
Operating
Conditions
32 to 131°F (0 to 55°C) 10 to 95% RH, noncondensing; 86°F (30°C) maximum dew point
Ambient Storage
Conditions
-40 to 140°F (-40 to 60°C) 5 to 95% RH, noncondensing; 86°F (30°C) maximum dew point
Materials
White thermoplastic
TE-6800 Series Temperature Sensors Installation Guide
5