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Manual 2100-516H
Page 7 of 19
FIGURE 3
HEAT PUMP WITH OPTIONAL MFAD, CRV and ERV VENTILATION
PACKAGING WITH NON-PROGRAMMABLE THERMOSTAT (NO OCCUPIED SIGNAL)
E
Unit
C R
Y EY1
Low Voltage Wiring Diagram
W1 O1
Black
LB
when
DH
Bard part #8403-058
W3
24V Low Voltage
Thermostat
#TH5220D1151
R
Red
Factory Jumper Installed
G
ERV
Orange
Black
Brown/White
CRV
Packages
Ventilation
1
whenever blower operates.
Add jumper, ventilation will be active
3
2
Do not connect orange wire.
MFAD
Terminal Block
3
2
1
Red
O/B
C
L
Y
2 Stage Heat
1 Stage Cool
thermostat is in Em Heat mode
W2
AUX
G
Rc
"L" is constant 24V output
1
MIS-2646 C