6
3 - Wiring
3.1 - Connections between thermostat and equip-
ment terminals - 2ET04700224
Note : Use copper conductors only. Section > 1mm
2
.
1. Electronic programmable thermostat 2ET04700224
(includes subbase).
2. Terminals Al and A2 provide a relay output when the ther-
mostat switches to the set-back position.
3. Terminal strip TB1 - locate on relay board in 24-volt section
of the unit control box.
3.2 - Connections between thermostat and equipment
terminals - 2ET04700324
1. Electronic programmable thermostat 2ET04700324 with sub-
base for both manual and automatic changeover.
2. Only required on units with economizer. Remove jumper J2
from terminals 4 and 9 on jumper plug P7. The outdoor air
intake dampers will return to their fully closed position when
the thermostat switches to the "unoccupied" mode.
3. Second stage cooling is only required on units with economi-
zer. Remove jumper J1 from terminals 8 and 10 on jumper
plug connector P7.
4. Only required on units with supplemental electric heat.
3.3 - Connections between thermostat and equipment
terminals - 2ET04700424
Note : Use copper conductors only. Section > 1mm
2
.
1. Electronic programmable thermostat 2ET04700424
(includes subbase).
2. Second stage heating only required on units with supple-
mental resistance heat.
3. Terminals A1 and A2 provide a relay output when the ther-
mostat switches to the setback position.
2
2
RH
RC
Y1
Y2
W1
W2
G
B
LED 1
LED 2
COM
A1
A2
T
T
R
Y1
Y2
W1
W2
G
B
X
A1
A2
24V
transformer
Unit terminal strip TB1
3
Thermostat
1
terminals
Add jumper
Add jumper
Not used
To remote sensor 2TH04702224 if used
Y2
W1
G
B
O
Y1
X
Y2
W1
G
B
O
Y1
X
R
N
A1
R
A2
COM
LED 1
LED 2
T
T
2
3
4
24V
transformer
Unit terminal strip TB1
Thermostat
1
terminals
Add
jumper
Not used
To remote sensor
2TH04702224 if used
Y1
Y2
W1
W2
G
R
B
A2
E
A1
LED 1
LED 2
COM
T
T
3
2
Y1
Y2
W1
W2
G
R
B
A2
E
A1
X
3
24V
transformer
Unit terminal strip TB1
3
Thermostat
1
terminals
To remote sensor
2TH04702224 if used
Add
jumper
Содержание 2ET04700224
Страница 1: ...USER GUIDE Programmable Thermostat 2ET04700224 324 424 Roof Top units THERMOSTATS...
Страница 9: ......
Страница 10: ...Europe Simplified Diagram Notes CUSTOMER INSTALLATION UNITARY equipment...
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