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

Page 7

FIGURE 3

HEAT PUMP WITH OPTIONAL MFAD, CRV and ERV VENTILATION

PACKAGING WITH NON-PROGRAMMABLE THERMOSTAT (NO OCCUPIED SIGNAL)

Low Voltage Wiring Diagram

	Thermostat	C	G R Rc Y	E AUX O/B	L	1 Stage Cool
	#TH5220D1151	C	G R Rc Y	E AUX O/B	L	2 Stage Heat
	#TH5220D1151					2 Stage Heat
	Bard part #8403-058
			1			"L" is constant 24V output when
						"L" is constant 24V output when
						thermostat is in Em Heat mode

	24V Low Voltage	C G R	Y Y1 E W2 B W1 W3 L DH O1
	Terminal Block

Unit

			1
	Orange	Red
3	Orange	CRV
3	Black	ERV	Ventilation
			Ventilation
	Black	MFAD	Packages
	Black	MFAD

MIS-2646 C

2

Brown/White

Red

1Factory Jumper Installed

Add jumper, ventilation will be active

2whenever blower operates.

3Do not connect orange wire.

Manual	2100-516H
Page	7 of 19

Image 7

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