
Wiring Schematic Diagrams
Download our wiring diagrams for our complete range of Bosch controls and modules.
For further information, or for technical support,
please call 0330 123 3004or e-mail commercial.industrial@uk.bosch.com
4122 Control schematics
The key explains what each number represents in the document title of the table.
Key
- Master controller.
- Number of boilers used.
- Domestic hot water used - 0=no. 1=yes.
- Number of un-mixed heating circuits.
- Number of mixed heating circuits.
Example
- 4122-1-0-1-1
- 4122 = Master Controller.
- 1 = Number of boilers used.
- 0 = Domestic hot water is not used.
- 1 = Number of un-mixed heating circuits.
- 1 = Number of mixed heating circuits
4121 Control schematics
The key explains what each number represents in the document title of the table.
Key
- Master controller.
- Number of boilers used.
- Domestic hot water used - 0=no. 1=yes.
- Number of un-mixed heating circuits.
- Number of mixed heating circuits.
Example
- 4121-1-0-1-1
- 4121 = Master Controller.
- 1 = Number of boilers used.
- 0 = Domestic hot water is not used.
- 1 = Number of un-mixed heating circuits.
- 1 = Number of mixed heating circuits
4211 Control schematics
The key explains what each number represents in the document title of the table.
Key
- Master controller.
- Number of boilers used.
- Domestic hot water used - 0=no. 1=yes.
- Number of un-mixed heating circuits.
- Number of mixed heating circuits.
Example
- 4211-1-0-1-1
- 4211 = Master Controller.
- 1 = Number of boilers used.
- 0 = Domestic hot water is not used.
- 1 = Number of un-mixed heating circuits.
- 1 = Number of mixed heating circuits
4212 Control schematics
The key explains what each number represents in the document title of the table.
Key
- Master controller.
- Number of boilers used.
- Domestic hot water used - 0=no. 1=yes.
- Number of un-mixed heating circuits.
- Number of mixed heating circuits.
Example
- 4212-1-0-1-1
- 4212 = Master Controller.
- 1 = Number of boilers used.
- 0 = Domestic hot water is not used.
- 1 = Number of un-mixed heating circuits.
- 1 = Number of mixed heating circuits
4321 Control schematics
The key explains what each number represents in the document title of the table.
Key
- Master controller.
- Number of boilers used.
- Domestic hot water used - 0=no. 1=yes.
- Number of un-mixed heating circuits.
- Number of mixed heating circuits.
Example
- 4321-1-0-1-1
- 4321 = Master Controller.
- 1 = Number of boilers used.
- 0 = Domestic hot water is not used.
- 1 = Number of un-mixed heating circuits.
- 1 = Number of mixed heating circuits
These diagrams are also the same for the 4322 control.
4323 Control schematics
The key explains what each number represents in the document title of the table.
Key
- Master controller.
- Number of boilers used.
- Domestic hot water used - 0=no. 1=yes.
- Number of un-mixed heating circuits.
- Number of mixed heating circuits.
Example
- 4323-1-0-1-1
- 4323 = Master Controller.
- 1 = Number of boilers used.
- 0 = Domestic hot water is not used.
- 1 = Number of un-mixed heating circuits.
- 1 = Number of mixed heating circuits
8000 Control schematics
The key explains what each number represents in the document title of the table.
Key
- Number of boilers
- Number of constant temperature heating circuits
- Number of variable temperature heating circuits
- Number of domestic hot water circuits
- Type of boiler the drawing applies to
Example
- 1B-1CT-1DHW-GB162
- 1B = 1 Boiler.
- 1CT = 1 Constant Temperature Heating Circuit
- 1DHW = 1 Domestic Hot Water Circuits
- GB162
8000 Control Function Modules
The key explains what each number represents in the document title of the table.
EM10 Control Schematics
The key explains what each number represents in the document title of the table.
Key
- Master controller.
- Number of boilers used.
- Domestic hot water used - 0=no. 1=yes.
- Number of un-mixed heating circuits.
- Number of mixed heating circuits.
Example
- EM10-1-0-1-1
- EM10 = Master Controller.
- 1 = Number of boilers used.
- 0 = Domestic hot water is not used.
- 1 = Number of un-mixed heating circuits.
- 1 = Number of mixed heating circuits
MCM10 Control Schematics
The key explains what each number represents in the document title of the table.
Key
- Master controller.
- Number of boilers used.
- Domestic hot water used - 0=no. 1=yes.
- Number of un-mixed heating circuits.
- Number of mixed heating circuits.
Example
- MCM10-1-0-1-1
- MCM10 = Master Controller.
- 1 = Number of boilers used.
- 0 = Domestic hot water is not used.
- 1 = Number of un-mixed heating circuits.
- 1 = Number of mixed heating circuits
RC35 Control schematics
The key explains what each number represents in the document title of the table.
Key
- Master controller.
- Number of boilers used.
- Domestic hot water used - 0=no. 1=yes.
- Number of un-mixed heating circuits.
- Number of mixed heating circuits.
Example
- RC35-1-0-1-1
- RC35= Master Controller.
- 1 = Number of boilers used.
- 0 = Domestic hot water is not used.
- 1 = Number of un-mixed heating circuits.
- 1 = Number of mixed heating circuits