Two Stage Heat Pump - Bosch BCC50 Installation Manual And User's Manual

Wiring Diagrams

Two Stage Heat Pump

with One Stage Emergency Heat
Ensure the system has a C-wire
▶
Ensure the pre-installed jumper wire remains between RH and R/RC
▶
▶ Connect the R, C, W1, Y1, Y2, O/B and G wires from the heat
pump to R/RC, C, W/E/AUX, Y, Y2, O/B/W2 and G terminals
on the wall plate, respectively
Single Stage Cool – Air Conditioner
▶ Ensure the system has a C-wire
Ensure the pre-installed jumper wire remains between RH and R/RC
▶
Connect the R, C, Y1 and G wires from the Air Conditioner to R/RC, C, Y
▶
and G terminals on the wall plate, respectively
26
R/RC
R/RC