
Figure 6: Error code indicating mismatched boards
Table 3: TEC3000 model names and code numbers
Name
1
Code number
Name
Code number
TEC3012
22
TEC3323
07
TEC3013
23
TEC3330
08
TEC3022
26
TEC3331
09
TEC3023
27
TEC3612
0C
TEC3030
28
TEC3613
0D
TEC3031
29
TEC3622
10
TEC3312
02
TEC3623
11
TEC3313
03
TEC3630
12
TEC3322
06
TEC3631
13
1
The two-character code number is listed within the error code to indicate that the CPU board and base board do not
belong together. However, if the same code number appears as both the CPU board and base board, there is no error.
For example, if 0C is listed as the CPU board and the base board, the model is the TEC3612.
6. Use a 1/16 in. (1.5 mm) Allen wrench or Johnson Controls T-4000-119 Allen-Head Adjustment
Tool (order separately) to reinstall the security screw on the top of the thermostat controller
cover. See Figure 2 for security screw placement.
7. Remove the protective plastic cover sheet from the display.
Important:
If the display is dirty,
gently
wipe it clean with isopropyl alcohol or ethyl alcohol.
Do not scrub hard as to avoid damaging the surface. Do not use other cleaners such as water,
ketones, and aromatic solvents, since they may damage the polarizer.
Note:
- For VAV and two-pipe systems, connect the valve to the heating output.
- Only one transformer is required for each TEC.
- Power to the AUX contact comes from the reheat coil.
See Figure 8Figure 8, Figure 9, and Figure 10 for wiring diagrams. See the following table for termi-
nal identification.
9
TEC3000 Series On/Off or Floating Fan Coil Thermostats Installation Guide