Johnson Controls TEC22 4-3 Series Installation Instructions Manual page 3

Note: For more details on wiring the
L W network, refer to the
ON ORKS
L W Network Layout Technical Bulletin
ON ORKS
(LIT-1162150).
2. Carefully push any excess wire back into the wall.
Seal the hole in the wall with fireproof material to
prevent drafts from affecting the ambient
temperature readings.
3. Reinsert the screw terminal blocks onto the PCB.
4. Reattach the L W
ON ORKS
the LON terminal block. See Figure 5.
Note: If inserting multiple wires into the terminals, be
sure to properly twist wires together prior to inserting
them in the terminal connectors.
5. Reattach the thermostat cover to the mounting
base (top side first).
6. Use a Phillips-head screwdriver to reinstall the
security screw on the bottom of the thermostat
cover.
Five-Pole
Left Top Connector
Y2
Y1
L W
ON ORKS
Bus Terminals
1 2
Eight-Pole Bottom Connector
EC Aux
9 10
Figure 5: Terminal Blocks
Y2 Y1 G
RC
Cool 1
Cool 2
Fan
24 VAC
Thermostat Power
TEC22x4-3 L W ® Networked Multi-Stage Economizer Thermostats Installation Instructions
ON ORKS
communication wires to
Three-Pole
Right Top Connector
RH W1 W2
G RC C
6
3 4 5 7 8
OS MS
DI1 DI2 RS
Scom
11 12 13 14 15 16
C RH W1
W2
Heat 1 Heat 2
If using the same power source
for the thermostat and heating loads,
install a jumper across RC and RH.
Figure 6: Wiring the TEC22x4-3 Thermostats
Table 1: Terminal Identification (See Figure 5.)
Number Label
1 Y2
2 Y1
3 G
4 RC
5 C
6 RH
7 W1
8 W2
9 EC
10 Aux
11 DI1
12 DI2
13 RS
14 Scom
15 OS
16 MS
Blank Blank
Isolated Contact
• Lighting
• On/Off Actuation
• Exhaust Fan
EC
Aux DI1 DI2 RS
Aux
Remote
Room
Sensor
Function
Energizes on a call for second-stage
cooling.
Energizes on a call for first-stage
cooling.
Energizes fan in accordance with
selected fan mode.
24 VAC from equipment transformer
24 VAC (Common) from equipment
transformer
24 VAC for heating stage
Energizes on a call for first-stage
heating.
Energizes on a call for second-stage
heating.
0 to 10 VDC Economizer Actuator
Output
Auxiliary output
Configurable Digital Input 1
Configurable Digital Input 2
Remote Room Temperature Sensor
Sensor Common
Auxiliary/Outdoor Air Sensor
Mixed Air Temperature Sensor
L W Bus
ON ORKS
L
Bus Terminal
Scom MS
OS
Supervisory
Controller
Remote
Monitoring
Auxiliary/
Supply
Outdoor
Temperature
Air Sensor
Sensor
W
ON ORKS
3