Bard S**H*D, W**H*D, T**HD installation instructions* Stage Cool 2 Stage Heat

Page 14

FIGURE 10

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

PACKAGING USING A NON-PROGRAMMABLE THERMOSTAT WITH CO2 CONTROLLER

Low Voltage Wiring Diagram

C	G	R Rc Y	AUX O/B
Thermostat		1
#TH5220D1151		1
Bard part #8403-058

1

2

3

4

24V Low Voltage

Terminal Block

C G R		Y1	Y		W2 B W1 W3	DH
					1
3			Red
3		Orange		CRV	Brown/White
		Orange		CRV
Black				ERV
Black				ERV	Ventilation
					Packages
Black				MFAD		Red
				2
Electronic Humidistat	6	5	3		4
Electronic Humidistat
Bard part #8403-047
			Red		Yellow
				Mechanical Humidistat
					Bard part #8403-038

"L" is constant 24V output when thermostat is in Em Heat mode

1 Stage

Cool

E L 2 Stage

Heat

5	6	Optional CO2	Controller

		Bard part #8403-067

O1 E

L

Unit

1Factory Jumper Installed.

2Jumper needs to be added.

3Connect Orange wire to "G".

MIS-2639 E

Manual	2100-516H
Page	14 of 19

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Contents Single Stage Heat Pumps LOW Voltage Control Circuit Wiring Contents Wiring LOW Voltage Wiring Thermostat Wire Size Low Voltage Wiring Diagram Low Voltage Wiring Diagram Stage Cool Only if optional CO2 controller is used Low Voltage Wiring Diagram Electronic Programmable Stage Cool Stage Heat Cool CRV Stage Cool 2 Stage Heat WH/SH Heat Pump Connection Diagram WH Unit Low Voltage Term. Strip Thermostat 24V Low Voltage Terminal Block Yellow Black Red Stage Cool Stage Heat Unit