Johnson Controls TEC3000 Series Quick Start Manual page 4

1. Strip the ends of each wire 1/4 in. (6 mm) and
connect them to the appropriate screw terminals as
indicated in Table 3.
Note: For more details on wiring the MS/
TP Communications Bus, refer to the MS/
TP Communications Bus Technical Bulletin
(LIT-12011034).
2. Attach the communication wires to the terminal
block.
Note: If multiple wires are inserted into the
terminals, make sure to correctly twist the
wires together before inserting them into the
terminal connectors.
3. Carefully push any excess wire back into the wall.
Note: Seal the hole in the wall with fireproof
material to prevent drafts from affecting the
ambient temperature readings.
4. For networked models, set the bus end-of-line (EOL)
termination switch to the desired location.
You can designate the thermostat controller as
the end of the Field Controller (FC) Bus and N2
Bus through the bus EOL termination switch.
The default position is OFF. If the thermostat
controller is at the end of a daisy chain of
devices on the FC Bus and N2 Bus, set the EOL
switch to the ON position. See Figure 3.
5. Reattach the thermostat controller cover to the
mounting base (bottom side first).
Important: Make sure you reattach the cover
that corresponds to its correct base. The CPU
board number needs to match the base board
number. Otherwise, an operation error occurs
after you reattach a cover and base that do not
belong together.
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.
Notes:
- 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.
4 TEC3000 Series Proportional Fan Coil Thermostats Quick Start Guide
Termial identification
Table 3: Terminal identification (See
for details)
Terminal Function
label
TEC3022, TEC3322, TEC3323,
TEC3023, Proportional FC/
TEC312x VAV
Proportional
FC/VAV
24 V 24 VAC hot from transformer
FAN H Fan high
FAN M Fan medium
FAN L Fan low and fan on
AUX Auxiliary binary output
AUX Auxiliary power input
24 VAC common from transformer
COM 1
CLG Cooling command, configurable 0 VDC to 10 VDC
range
NC No connection
NC No connection
HTG Heating command, configurable 0 VDC to 10 VDC
range
RSEN Configurable analog input 1
COS Configurable analog input 2/Changeover binary switch
Common
COM 1
VSF Variable speed fan command, configurable 0 VDC to
10 VDC range
BI-2 Configurable binary input 2
BI-1 Configurable binary input 1
NET+ n/a Not connected
NET- n/a Not connected
NET COM n/a Not connected
1 For the networked models, the common terminals, which
do not include NET COM, are internally connected and can
be used for all inputs and outputs. For the wireless models,
the common terminals are connected and can be used for all
inputs, outputs, and 24 VAC power.
Wiring diagrams
TEC3622,
TEC3623
Proportional FC/
VAV
Field bus+/N2+
Field bus-/N2-
Isolated common
for field bus