998659-YIM-C-0614
18
Johnson Controls Unitary Products
Figure 23: Typical Electronic Thermostat Field Wiring
Figure 24: Typical Field Wiring 24 Volt Thermostat
W 2
R C
R H
Y 1
Y 2
W 1
G
C
X 1
X 3
X 4
A 1
A 2
T
T
W 2
Y 1
Y 2
W 1
G
C
O C C
X
R
2
TO REMOTE SENSOR
2ET04701324 IF USED
24 Volt
Transformer
THERMOSTAT
1
TERMINALS
UNIT TERMINALS
STRIP TB1
1
Electronic programmable Thermostat 2ET0770010124 (includes subbase).
2
Terminals A1 and A2 provide a relay output to close the outdoor economizer
dampers when the thermostat switches to the set-back position.
OCC
W1
W2
Y1
G
Y2
X
R
SD
C
RE
M
O
T
E
MI
N
P
O
S
W1
W2
Y1
G
Y2
C
RH
RC
UNIT CONTROL
BOARD
T-STAT
