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Manual 2100-549G
Page 28 of 59
FIGURE 18
HEAT PUMP WITH ERV AND CO
2
CONTROL (FULLY MODULATING)
SC
W1/E
ADLO/BY2Y1
24V
G
COM
W2
Completestat
Model #CS9B-THO or
Model #CS9BE-THO
SCSC
Thermostat
W1/E
A
YO/D
LO/BY2Y1RGCW2
Bard #8403-060
PINK
DL
without "Occupance Signal" is used.
Term. Strip
B/W1
Y2R
6Y1RT 3
PURPLE
Connect to "G" terminal when thermostat has "Occupancy Signal".
C
2
2
ERV Wiring Harness
Voltage
1
W2
2
Additional wire required for dehumidification models.
Bard #8403-067
4
3
MIS-3021 A
4
5
1
to N.C fire alarm circuit if emergency shutdown required.
Factory installed jumper. Remove jumper and connect
1
Not needed below 15KW.
2
3
5
BROWN/WHITE
ORANGE
BLACK/WHITE
RED/WHITE
4W3 AG
Install a jumper between "G" and "A" only when thermostat
3
Low
CO2 Control
3
NOTE: Bard 8403-060
thermostat must be
in programmed
operation mode and
in programmed fan
mode for ventilation
to function.