Bosch IDS BOVB20 - Page 21

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Installation Instructions
Bosch IDS BOVB20 Split System Heat Pump - BTC 761701316 C (02.2022)
Figure 32
Wiring for 1H and 1C thermostat
Y2
C
Y
C G
THERMOSTAT
INDOOR UNIT
OUTDOOR UNIT
G
R
O/B
H/DH
W2
W1
C
Y
B
W
B
Dh
Y1
R
GRAY PURPLE BROWN BLUE GREEN
RED
YELLOW BROWN YELLOW BLUE
Note: Because Y1 and Y2 are
jumped, the indoor fan will only run
in high stage.
Thermostat Wiring Diagram for BOVB20/BVA20 Matched System
Figure 33
Wiring for 2H and 1C thermostat
Y2
C
Y
C
G
THERMOSTAT
INDOOR UNIT
OUTDOOR UNIT
G
R
O/B
H/DH
W2
W1
C
Y
B
W
B
Dh
Y1
R
GRAY PURPLE
BROWN
BLUE
GREEN RED
YELLOW BROWN
YELLOW BLUE
W/E
WHITE/BLACK WHITE
WHITE
Note: Because Y1 and Y2 are
jumped, the indoor fan will only run
in high stage.
Note: W1 and W2 are jumped, so
Electric Heat will only function in
high stage.
Thermostat Wiring Diagram for BOVB20/BVA20 Matched System