Bard WA Series, User Manual, Page: 46 / 87

Manual 2100-720C
Page 22 of 42
FIGURE 21
Non-Programmable Thermostat Connections
CO2 OUT
Optional CO2 Controller
Bard Part #8403-067
6
5
4
3
2
1
TEMP-OUT
24VAC
W3 Y3 6 5 4 2 1 R
Unit Low
Voltage
Term. Strip
W2 C G RT Y1 Y2
B/W1
L D A 3
Factory installed jumper. Remove jumper to activate Balanced Climate
™
Mode.
A 3-stage thermostat is recommended for Balanced Climate mode. Must not be
removed if Econ is installed.
10
5 Do not add these wires if setting up for modulating control. See note 7.
7
Jumper needs added. 8
For 8403-058, change "system type", set up Function 1, From 5 (2 Heat/ 1 Cool heat Pump)
to 6 (2 Heat / 2 Cool Conventional). For 8403-059, No change required.
2B Install Jumper for 1 stage electric heat on units with more
than 10KW.
0-10 VDC Modulating CO2 control signal for modulating ventilation control
(Optional for ECON Only) - See vent installation manual.
6
For vent operation, add jumper if optional CO2 controller is not used.
Vent will run while blower is energized.
For ECON & CRV-V anadditional wire change is required
See install Manual.
4
Factory installed jumper. Remove jumper and connect
to N.C fire alarm circuit if emergency shutdown required.
3
Wire not needed below 15KW.
2A
Wire required for dehumidification models only.
1
Thermostat will not work with units equipped with economizers. 9
6
10 12
11 9
4
12-Pin
Vent Plug
2 3 5 7
O
MIS-4068
5
8
ALL VENT OPTIONS PLUG IN HERE
4
2A
W Rc C R G Y Y2
W2
4 3 6
8403-038
Electronic Humidistat
Mechanical Humidistat
3
1
8403-059
or T4 Pro 8403-089
W C Rc Y R G B
(TH522OD1219/U)
or T6 Pro 8403-090
8403-047
Units With Dehumidification
If not equipped with a ventilation option to plug in, a jumper plug must be installed.
8403-058
(TH522OD1151)
8403-057
(TH311OD1040)
9
7
6
2B
5
10