Manual 2100-689J
Page
19 of 42
TABLE 7
Humidity Controls
Part Number
Predominate Features
8403-038
(H600A1014)
SPDT switching, pilot duty 50VA @ 24V;
Humidity range 20-80% RH
8403-047
(H200-10-21-10)
Electronic dehumidstat SPST closes-
on-rise; Humidity range 10-90% with
adjustable stops
TABLE 8
CO
2
Controllers
Part Number
Predominate Features
8403-056
CO
2
ventilation control with digital display.
Normally Open SPST (Default: Close at
800ppm)
8403-096
Normally Open SPST relay closes-on-rise
24V dual wave length sensor. Default setting
950ppm, adjustable to 0-2000ppm
Default off setting 1000ppm, adjustable to
0-200 ppm can be calibrated
TABLE 6
Thermostat Wire Size
Transformer
VA
FLA
Wire Gauge
Maximum
Distance
In Feet
55
2.3
18 gauge
16 gauge
14 gauge
12 gauge
60
100
160
250
FIGURE 8
Programmable Thermostat Connections
Thermostat
W1/E
A
YO/D
L
O/B
Y2
Y1
R
G
C
W2
Bard #8403-060
6
10
12
11
9
4
12-Pin
Vent Plug
2
3
5
7
CO2 OUT
Optional CO2 Controller
Bard Part #8403-096
6
5
4
3
2
1
TEMP-OUT
24VAC
W3
6
5
4
2
1
R
Unit Low
Voltage
Term. Strip
W2
C
G
RT
Y1
Y2
B/W1
L
D
A
3
not present if economizer is factory installed. Units with economizers have balanced
Install jumper for 1 stage electric heat on units with more than 10KW
Y1 Y2 jumper
climate jumper in economizer, refer to economizer manual.
Factory installed jumper. Remove jumper to activate Balanced Climate™ mode.
8
7
6
Do not connect "A" from thermostat if optional CO2 controller is used
0-10 VDC modulating C02 control signal for modulating ventilation
control (optional for ECON only - see vent instruction manuals)
5
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
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.
4
Factory installed jumper. Remove jumper and connect
to N.C fire alarm circuit if emergency shutdown required.
3
Wire not needed below 15KW.
2
Wire required for dehumidification models only.
1
Do not add these wires if setting up for modulating control. See note 5.
9 A 2-stage thermostat is recommended for Balanced Climate mode.
W1/E
SC
SC
SC
Completestat
Model #CS9B-THOA or
Model #CS9BE-THOA
W2
COM
G
24V
Y1
Y2
O/B
L
D
A
GND
MIS-3974
ALL VENT OPTIONS PLUG IN HERE
2
3
3
1
6
D
4
5
7
If not equipped with a ventilation option to plug in, a jumper plug must be installed.
4
2
8
9
