Y2
Y1
G
RC
C
RH
W1 W2
D1
D2
RS
Scom
5-pole left top connector
3-pole right top
connector
8-pole bottom connector
24 VAC
Thermostat Power
Y2
Y1
G
RC
C
If using the same power source
for the thermostat and heating
loads, install a jumper
across RC and RH.
Heat 1 Heat 2
RH
W1
W2
Fan
Cool 1
Energizes on a call for first stage cooling
Energizes on a call for second stage cooling
Energizes fan in accordance with the selected fan mode
24 VAC from equipment transformer
24 VAC (common) from equipment transformer
24 VAC for heating stages
Energizes on a call for first stage heating
Energizes on a call for second stage heating
Configurable digital input
Configurable digital input
Remote room sensor
Sensor common
Auxiliary/Outdoor air sensor
Mixed air sensor
0 - 10 VDC Economizer actuator output
N2 Bus
Function
Y1
Y2
G
RC
C
RH
W1
W2
D1
D2
RS
Scom
OS
MS
EC
N2+, N2-, REF
Terminal
OS
D2
Scom
RS
D1
Remote
Room
Sensor
OS
REF
N2-
N2+
Auxiliary/
Outdoor
Sensor
N2-
N2+
REF
Metasys, CPN,
NCM
EC
0
to 10
VD
C
24 V
A
C
C
o
mmon
MS
EC
Remote
Mixed Air
Sensor
Cool 2
fi
g5-
b
Figure 5: TEC2104-1 Wiring Schematic
Connecting the N2 Bus
To connect the N2 Bus:
1. Observe the polarity when connecting the N2 Bus
wires to the TEC2104-1.
Note:
An End-of-Line (EOL) is not needed on
the N2 Bus at the TEC2104-1. However, one EOL
is needed at the BAS (N30, Companion, Network
Control Module).
2. Continue this process for each TEC2104-1 using
the daisy-chain wiring method.
N2 Device Mapping
When adding the TEC2104-1 to the Metasys system
(Person-Machine Interface [PMI] and Companion
system), you must define the TEC2104-1 as a Vendor
Device (VND). For the NCM, except as noted in
Table 1, Footnote c, do
not
direct map any points. Run
control of these points through the Control System
(CS) object. See the
Setting the N2 Address (N2 addr)
section to set the address for the thermostat.
TEC2104-1 Networked Multi-Stage Economizer Thermostat Installation Instructions
3
