Wiring Schematic Diagrams

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 3004 or 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

Control Schematics File Type Download
4122-1-1-1-4 PDF Download (PDF 0.2 MB)
4122-2-0-0-3 GB312 PDF Download (PDF 0.2 MB)
4122-2-1-0-2 PDF Download (PDF 0.2 MB)
4122-2-1-1-2 PDF Download (PDF 0.2 MB)
4122-3-1-0-2 + Solar PDF Download (PDF 0.2 MB)
4122-6-0-1-3 PDF Download (PDF 0.2 MB)
4122-6-0-2-0 PDF Download (PDF 0.2 MB)
4122-6-1-1-1 PDF Download (PDF 0.2 MB)
4122-6-1-1-3 PDF Download (PDF 0.2 MB)
4122-8-0-2-0 PDF Download (PDF 0.2 MB)

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

Control Schematics File Type Download
4121-1-0-1-1 PDF Download (PDF 0.2 MB)
4121-1-1-0-1 Unvented Protection PDF Download (PDF 0.2 MB)
4121-1-1-0-1 PDF Download (PDF 0.2 MB)
4121-1-1-0-1+Solar PDF Download (PDF 0.2 MB)
4121-1-1-1-0 Unvented Protection PDF Download (PDF 0.2 MB)
4121-1-1-1-0 PDF Download (PDF 0.2 MB)
4121-1-1-1-1 PDF Download (PDF 0.2 MB)
4121-1-1-1-3 PDF Download (PDF 0.2 MB)
4121-2-0-0-2+BFU PDF Download (PDF 0.2 MB)
4121-2-0-1-0 PDF Download (PDF 0.2 MB)
4121-2-0-1-0 GB312 PDF Download (PDF 0.2 MB)
4121-2-1-0-0 PDF Download (PDF 0.2 MB)
4121-2-0-1-1 PDF Download (PDF 0.2 MB)
4121-2-1-0-1 PDF Download (PDF 0.2 MB)
4121-2-1-1-1 PDF Download (PDF 0.2 MB)
4121-3-1-1-1 PDF Download (PDF 0.2 MB)
4121-2-1-2-0 PDF Download (PDF 0.2 MB)
4121-2-1-2-1 PDF Download (PDF 0.2 MB)
4121-3-1-2-0 PDF Download (PDF 0.2 MB)
4121-3-0-2-0 PDF Download (PDF 0.2 MB)
4121-3-1-2-1 PDF Download (PDF 0.2 MB)
4121-4-0-1-2 PDF Download (PDF 0.2 MB)
4121-4-0-2-1 PDF Download (PDF 0.2 MB)
4121-4-1-1-1 PDF Download (PDF 0.2 MB)
4121-4-1-2-0 PDF Download (PDF 0.2 MB)
4121-4-1-2-1 PDF Download (PDF 0.2 MB)

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

Control Schematics File Type Download
4211-1-1-1-0 PDF Download (PDF 0.2 MB)
4211-1-1-1-2 PDF Download (PDF 0.2 MB)

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

Control Schematics File Type Download
4212-1-HDR1 PDF Download (PDF 0.2 MB)
4212-1-HDR2 PDF Download (PDF 0.2 MB)
4212-2-Cascade PDF Download (PDF 0.2 MB)
4212-3-Cascade PDF Download (PDF 0.2 MB)

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.

Control Schematics File Type Download
4321-2-0-0-0 0-10 Volt PDF Download (PDF 0.2 MB)
4321-2-0-0-0 PDF Download (PDF 0.2 MB)
4321-2-0-0-0 Volt Free PDF Download (PDF 0.2 MB)
4321-3-0-0-0 PDF Download (PDF 0.2 MB)
4321-3-1-1-2 PDF Download (PDF 0.2 MB)
4321-4-0-0-2 PDF Download (PDF 0.2 MB)
4321-4-1-1-2 PDF Download (PDF 0.2 MB)
4321-6-0-0-2 PDF Download (PDF 0.2 MB)
4321 Saftey Chain with alarm PDF Download (PDF 0.2 MB)
4321 Saftey Group PDF Download (PDF 0.2 MB)

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

Control Schematics File Type Download
4323-5-1-1-1 PDF Download (PDF 0.2 MB)
4323-6-1-1-1 PDF Download (PDF 0.2 MB)
4323-7-1-1-1 PDF Download (PDF 0.2 MB)
4323-8-1-1-1 PDF Download (PDF 0.2 MB)
4323-8-1-1-3 PDF Download (PDF 0.2 MB)

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

Control Schematics File Type Download
1B-1CT-1DHW-C7000F PDF Download (PDF)
1B-1CT-1DHW-GB162 PDF Download (PDF)
1B-1CT-1VT-1DHW-C7000F PDF Download (PDF)
1B-1CT-1VT-1DHW-GB162 PDF Download (PDF)
1B-1CT-1VT-2DHW-GB162 PDF Download (PDF)
1B-1CT-2VT-2DHW-C7000F PDF Download (PDF)
1B-1CT-2VT-2DHW-GB162 PDF Download (PDF)
1B-1VT-1DHW-C7000F PDF Download (PDF)
1B-1VT-1DHW-GB162 PDF Download (PDF)
1B-3VT-1DHW-C7000F PDF Download (PDF)
1B-3VT-1DHW-GB162 PDF Download (PDF)
2B-1CT-1DHW-C7000F PDF Download (PDF)
2B-1CT-1DHW-GB162 PDF Download (PDF)
2B-1CT-1VT-2DHW-GB162 PDF Download (PDF)
2B-1CT-2VT-2DHW-GB162 PDF Download (PDF)
2B-1VT-1DHW-GB162 PDF Download (PDF)
3B-1CT-1DHW-GB162 PDF Download (PDF)
3B-1VT-1DHW-GB162 PDF Download (PDF)

8000 Control Function Modules

The key explains what each number represents in the document title of the table.

Key

Example

Connection Diagrams File Type Download
FM-AM PDF Download (PDF)
FM-MM PDF Download (PDF)
FM-MW PDF Download (PDF)
FM-SI PDF Download (PDF)

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

Control Schematics File Type Download
EM10-1-0-0-0 GB312 PDF Download (PDF 0.2 MB)
EM10-1-0-0-0 PDF Download (PDF 0.2 MB)
EM10-2-0-0-0 GB312 PDF Download (PDF 0.2 MB)
EM10-2-0-0-0 PDF Download (PDF 0.2 MB)

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

Control Schematics File Type Download
MCM10-4-0-10 vdc PDF Download (PDF 0.2 MB)
MCM10-4-230 vac PDF Download (PDF 0.2 MB)
MCM10-4-Volt Free PDF Download (PDF 0.2 MB)

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

Control Schematics File Type Download
RC35-1-0-1-1 PDF Download (PDF 0.2 MB)
RC35-1-1-0-1 PDF Download (PDF 0.2 MB)
RC35-1-1-1-0 PDF Download (PDF 0.2 MB)
RC35-1-1-1-1 PDF Download (PDF 0.2 MB)
RC35-1-1-1-1 PDF Download (PDF 0.2 MB)
RC35-1-1-1-1+Solar PDF Download (PDF 0.2 MB)
RC35-1-1-1-2 PDF Download (PDF 0.2 MB)
RC35-1-1-1-2+RC25 PDF Download (PDF 0.2 MB)
RC35-1-1-1-3 PDF Download (PDF 0.2 MB)