Bosch IDS BOVB20 Installation Instructions Manual page 19

Support 3H and 2C thermostat
(This is the configuration of the BCC50)
W/E
Y2
Y
R
G
C
O/B
H/DH
TH E RM O S TAT
Note: Any time the electric heat
elements are active, the indoor fan
will run in high stage.
Figure 28 Thermostat Wiring Diagram for BOVB20/BVA20 Matched System
Wiring for 4H and 2C thermostat
(This is the configuration of the BCC100)
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 29 Thermostat Wiring Diagram for BOVB20/BVA20 Matched System
Bosch IDS BOVB20 Split System Heat Pump - BTC 761701316 C (02.2022)
Dh B C G R
INDOOR UNIT
Dh B C G R
INDOOR UNIT
Y2 W1
Y1 W2 C
OUTDOOR UNIT
W1
Y1 Y2 W2 C
OUTDOOR UNIT
Installation Instructions
Y W
B
Y B W
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