Bard I42H1D, I36H1D, I60H1D, I48H1D, I30H1D Heat Pump with CRV and CO2 Control, To function

FIGURE 15

HEAT PUMP WITH CRV AND CO2 CONTROL

SC SC SC

Completestat

Model #CS9B-THO or

Model #CS9BE-THO

24V COM G Y1 Y2 O/B W2 W1/E L A D

							2		3
									NOTE: Bard 8403-060
									thermostat must be
Thermostat	R	C	G	Y1	Y2 O/B W2 W1/E	L	A	YO/D	in programmed
									operation mode and
Bard #8403-060
									in programmed fan
									mode for ventilation
									to function.
							2		3

Low	R	RT	C
Voltage
Term. Strip
		1
RED/WHITE
BLACK/WHITE
ORANGE
BROWN/WHITE

G Y1 Y2 B/W1 W2 W3 L A

5

4

D 6 3 4

2

1

5

CRV Wiring Harness

1Factory installed jumper. Remove jumper and connect to N.C fire alarm circuit if emergency shutdown required.

2Not needed below 15KW.

3Additional wire required for dehumidification models.

6 6

6 CO2 Control

Bard #8403-067

4Connect to "G" terminal when thermostat has "Occupancy Signal".

5Install a jumper between "G" and "A" only when thermostat without "Occupance Signal" is used.

6If CS9B-THOC or CS9BE-THOC is used, connect "Brown/White" directly to "A" and do not use seperate CO2 controller.

MIS-3018

Manual	2100-549G
Page	25 of 59