Bard W**H*D, S**H*D, T**H*D Low Voltage Wiring Diagram, Cool, Unit, Stage, Heat

Models: S**H T**H*D T**H S**H*D W**H*D W**H

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2 Stage

FIGURE 8

HEAT PUMP WITH DEHUMIDIFICATION SEQUENCE & OPTIONAL MFAD, CRV & ERV VENTILATION

PACKAGING USING ELECTRONIC THERMOSTAT WITH COMBINATION TEMPERATURE &

HUMIDITY CONTROL WITH OPTIONAL CO2 CONTROLLER

2

 

 

 

 

Low Voltage Wiring Diagram

 

 

 

 

 

 

2 Stage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thermostat

C

G

R

Y1

Y2

O/B

W2

YO/D

 

 

 

 

 

A

W1/E

L

Cool

Bard part

 

 

 

 

 

#8403-060

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 Stage

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

Heat

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

3

4

5

6

 

 

 

Optional CO2 Controller

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bard part #8403-067

24V Low

C

G

R

Y1

Y

B

W2

W3 W1

DH

O1

E

L

Unit

Voltage

Terminal

 

 

 

 

 

 

 

 

 

 

 

 

 

Block

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

Orange

Red

 

 

 

 

 

 

 

 

3

 

 

 

CRV

 

 

Brown/White

 

 

 

 

 

Black

 

 

 

ERV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ventilation Packages

 

 

 

 

 

 

 

Black

 

 

 

MFAD

 

 

Red

 

 

 

 

1 Factory Jumper Installed

MIS-2637 C

 

 

 

2Must be configured to "no economizer" to make YO/D output active for humidity control. Must be configured to programmable and fan set to programmed fan for the "A" output to function during scheduled occupied periods.

Do not connect "A" from thermostat if optional CO2

3 controller is used. Connect orange wire to "G" only when optinal CO2 controller is used.

Manual

2100-516H

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Bard W**H*D, S**H*D, T**H*D installation instructions Low Voltage Wiring Diagram, Cool, Unit, Stage, Heat