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8
R
Rc
C
G
T4 Pro 8403-089
T6 Pro 8403-090
R
Rc
C
G
Unit Low
R
RT
C
G
Voltage
Term. Strip
1
12-Pin
9
6
Vent Plug
Factory installed jumper. Remove jumper and connect
1
to N.C fire alarm circuit if emergency shutdown required.
2A
Wire not needed below 15KW.
Install Jumper for 1 stage electric heat on units with more
2B
than 10KW.
3
Wire required for dehumidification models only.
For vent operation, add jumper if optional CO2 controller is not used.
4
Vent will run while blower is energized.
For ECON & CRV-V anadditional wire change is required
See install Manual.
5 Do not add these wires if setting up for modulating control. See note 6.
Manual 2100-720E
Page
22 of 42
Non-Programmable Thermostat Connections
Y
W
O
Y
Y2
W
W2
9
Y1
Y2
Y3
W2
B/W1
3
2
5
11
ALL VENT OPTIONS PLUG IN HERE
If not equipped with a ventilation option to plug in, a jumper plug must be installed.
0-10 VDC Modulating CO2 control signal for modulating ventilation control
6
(Optional for ECON Only) - See vent installation manual.
7
Jumper needs added.
8
Thermostat will not work with units equipped with economizers.
Factory installed jumper. Remove jumper to activate Balanced Climate
9
A 3-stage thermostat is recommended for Balanced Climate mode. Must not be
removed if Econ is installed.
FIGURE 21
B
6
2A
3
2B
W3
L
A
D
1
2
4
7
Units With Dehumidification
8403-038
Mechanical Humidistat
7
8403-047
4
5
3
Electronic Humidistat
Optional CO2 Controller
Bard Part #8403-096
1
24VAC
2
3
CO2 OUT
4
TEMP-OUT
6
5
5
6
3
4
5
6
4
12
10
™
Mode.
MIS-4068 C
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