Wiring Diagrams - Bosch BCC50 User Manual

Wiring Diagrams

Single Stage Heat – Furnace
Ensure the system has a C-wire
Ensure the pre-installed jumper wire remains between RH and RC
Connect the R, C, W1 and G wires from the Furnace to RH, C, W/E and G
terminals on the wall plate, respectively
Two Stage Heat – Furnance
Ensure the system has a C-wire
Ensure the pre-installed jumper wire remains between RH and RC
Connect the R, C, W1, W2 and G wires from the Furnace to RH, C, W/E, W2/
AUX and G terminals on the wall plate, respectively
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---- Data
G C
W2/
W/E
AUX
Y
Y2
RH
O/B
Jumper
RC
H/DH
---- Data
G C
W2/
W/E
AUX
Y
Y2
RH
O/B
Jumper
RC
H/DH
Single Stage Heat – Boiler
Ensure the system has a C-wire
Ensure the pre-installed jumper wire remains between RH and RC
Connect the R, C and W1 wires from the boiler to RH, C and W/E
terminals on the wall plate, respectively
Combined Single Stage Heat and Single Stage Cool Furnace and Air Conditioner
Ensure the system has a C-wire
Remove the pre-installed jumper wire from between RH and RC
Connect the R, C, W1 and G wires from the Furnace to RH, C, W/E
and G terminals on the wall plate, respectively
Connect the R, C, Y1 and G wires from the Air Conditioner to RC, C,
Y and G terminals on the wall plate, respectively
---- Data
G C
W2/
W/E
AUX
Y
Y2
RH
O/B
Jumper
RC
H/DH
---- Data
G C
W2/
W/E
AUX
Y
Y2
RH
O/B
RC
H/DH
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