TEC3000 Series Single- or Two-Stage Economizer Thermostat Controllers Installation Instructions
5
To wire the thermostat controller:
1.
Strip the ends of each wire 1/4 in. (6 mm) and connect them to the appropriate screw terminals as indicated in
Table 2 and Figure 7.
Note:
For more details on wiring the MS/TP Communications Bus, refer to the
MS/TP Communications Bus
Technical Bulletin (LIT-12011034).
2.
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.
3.
Reattach the communication wires to the terminal block.
Note:
If multiple wires are inserted into the terminals, be sure to properly twist the wires together before
inserting them into the terminal connectors.
4.
Set the bus end-of-line (EOL) termination switch to the desired location on the TEC3630-00-000 and
TEC3631-00-000 models only.
The bus EOL termination switch allows you to designate the thermostat controller as the end of the Field
Controller (FC) Bus and N2 Bus. 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 4.
Figure 4: EOL Switch Positions (Left) and Installing the Thermostat Controller Cover (Right)
5.
Reattach the thermostat controller cover to the mounting base (bottom side first).
IMPORTANT:
Make all wiring connections in accordance with local, national, and regional regulations. Do not
exceed the electrical ratings of the TEC3000 Series Thermostat Controller.
IMPORTANT:
Use proper ESD precautions during installation and servicing to avoid damage to the electronic
circuits of the thermostat controller.
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 (as shown in Figure 5). See Table 1 for TEC3000 model names and code
numbers.
F
IG:
EOL_
Swt
ch
EOL Switch
ON Position
EOL Switch
OFF Position
O
N
O
N
F
IG:
TE
C Ba
c
k
p
la
n
e2
_
E
OL
S
w
it
c
h
O
N
FI
G
:cl
o
se
t
h
er
m
o
st
a
t
co
v
er
