Bosch BCC100 User Manual page 5

The following are wiring diagrams for common
systems. If you are unsure of how to connect your
thermostat, please seek professional support.
Conventional Heating
(2 Stages) & Cooling
(2 Stages) System with
Humidifier and Single
Transformer
Install a jumper between Rh
and Rc only if a single
transformer is used for
heating and/or cooling.
Conventional Heating
(1 Stage) & Cooling
(1 Stage) System with
Dual Transformer
Conventional Heating
(1 Stage) & Cooling
(2 Stages) with
Dehumidifier and
Single Transformer
Install a jumper between Rh
and Rc only if a single
transformer is used for
heating and/or cooling.
Thermostat
-
G
W2
Y2
O/B
H/Dh
Thermostat
-
G
W2
Y2
O/B
H/Dh
Thermostat
-
G
W2
Y2
O/B
H/Dh
Data
C
W/E
Y
Rh
Rc
Data
C
W/E
Y
Rh
Rc
Data
C
W/E
Y
Rh
Rc
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