Bosch BVA 2.0 Series Installation Instructions Manual page 23

Installation Instructions
Wiring for 4H and 2C thermostat
W2
W/E
Y2
Y
R
G
C
O/B
H/DH
T H E R M O S T A T
Note: Any time the electric heat
elements are active, the indoor fan
will run in high stage.
Figure 18
Control Wiring For HP Systems
Wiring for 3H and 1C thermostat
W2
W/E
Y
R
G
C
O/B
H/DH
TH ERM OSTAT
Note: Because Y1 and Y2 are
jumped, the indoor fan will only run
in high stage.
Note: Any time the electric heat
elements are active, the indoor fan
will run in high stage.
Figure 19
Control Wiring For HP Systems
Bosch Thermotechnology Corp. | 02.2019
Dh B C G R Y1
INDOOR UNIT
Dh B C G R
INDOOR UNIT
Y2 W1
W2 C
OUTDOOR UNIT
Y2 W1
Y1 W2 C
OUTDOOR UNIT
Bosch IDS BVA 2.0 | 23
Y W
B
Y W
B
Data subject to change