Bard W24HY-A Installation Instructions Manual page 25

Wall mounted package heat pump
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SC
SC
SC
Completestat
Model #CS9B-THOA or
Model #CS9BE-THOA
24V
G
COM
9
6
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
0-10 VDC modulating C02 control signal for modulating ventilation
5
control (optional for ECON only - see vent instruction manuals)
Thermostat Connections
Y1
Y2
O/B
W2
W1/E
2
Y1
Y2
O/B
W2
W1/E
2
Y1
Y2
W2
W3
B/W1
8
2
5
11
ALL VENT OPTIONS PLUG IN HERE
6
7
8
9
FIGURE 8
L
A
D
GND
3
4
L
A
YO/D
4
3
L
A
D
1
2
3
7
Ensure model configuration is heat pump and not heat/cool. Must be configured to programmable
and fan set to be programmed fan for the "A" output to function during scheduled occupied
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.
Do not add these wires if setting up for modulating control.
Factory installed jumper. Remove jumper to activate Balanced Climate TM Mode.
A 2-stage thermostat is recommended for balanced climate mode. Y1 Y2 jumper
not present if economizer is factory installed. Units with economizers have balanced
climate jumper in economizer, refer to economizer manual. The jumper is factory
removed in the unit and on jade for C**HY models.
Completestat not compatible with C**HY models.
5
Optional CO2 Controller
Bard Part #8403-096
1
24VAC
2
3
CO2 OUT
4
TEMP-OUT
4
5
6
5
6
7
4
12
10
MIS-4063 F
Manual
Page
2100-790
25 of 49

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