Connections - Bard W18AA-A Installation Instructions Manual

SC SC SC
Completestat
Model #CS9B-THO or
Model #CS9BE-THO
24V G
COM
7
Thermostat
R C G
Bard #8403-060
Unit Low
R RT C G
Voltage
Term. Strip
1
12-Pin 9 6 3
Vent Plug
If not equipped with a ventilation option to plug in, a jumper plug must be installed.
Factory installed jumper. Remove jumper and connect
1
to N.C fire alarm circuit if emergency shutdown required.
2 Wire not needed below 15KW.
Wire required for dehumidification models only.
3
4 Do not connect "A" from thermostat if optional CO2 controller is used
5 Relay Provided with Completestat
FIGURE 8
Programmable Thermostat Connections
Y1 Y2 O/B W2 L
W1/E
2
Y1 Y2 O/B W2 L
W1/E
2
8
Y1 Y2 W2 L/1
B/W1 W3/8
2 5 11
ALL VENT OPTIONS PLUG IN HERE
0-10 VDC modulating C02 control signal for modulating ventilation control (optional for
6
ECON only - see vent instruction manuals)
Change model configuration from heat pump to heat/cool. Must be configured to programmable
and fan set to be programmed fan for the "A" output to function during scheduled occupied
7
periods. Must be configured for multi-stage for Y1 output to be active 1st stage cooling. For
dehumidification, must be configured for "No Economizer" for YO/D to be active for humidity
control.
8 Install jumper for 1 stage electric heat on units with less than 15KW
Do not add these wires if setting up for modulating control. See note 7.
9
A D GND
3
Orange
White
4
Red
A
YO/D
4 3
A D 2 3 4
4
7 4
Yellow
Blue
5
Optional CO2 Controller
6
Bard Part #8403-067
1
24VAC
2
3 CO2 OUT
4 TEMP-OUT
5 6 7
5
6
9
12 10
Manual 2100-640F
Page
MIS-3738 A
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