How can we help?
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
4122-1-1-1-4
4122-2-0-0-3 GB312
4122-2-1-0-2
4122-2-1-1-2
4122-3-1-0-2 + Solar
4122-6-0-1-3
4122-6-0-2-0
4122-6-1-1-1
4122-6-1-1-3
4122-8-0-2-0
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
4121-1-0-1-1
4121-1-1-0-1 Unvented Protection
4121-1-1-0-1
4121-1-1-0-1+Solar
4121-1-1-1-0 Unvented Protection
4121-1-1-1-0
4121-1-1-1-1
4121-1-1-1-3
4121-2-0-0-2+BFU
4121-2-0-1-0
4121-2-0-1-0 GB312
4121-2-1-0-0
4121-2-0-1-1
4121-2-1-0-1
4121-2-1-1-1
4121-3-1-1-1
4121-2-1-2-0
4121-2-1-2-1
4121-3-1-2-0
4121-3-0-2-0
4121-3-1-2-1
4121-4-0-1-2
4121-4-0-2-1
4121-4-1-1-1
4121-4-1-2-0
4121-4-1-2-1
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
4211-1-1-1-0
4211-1-1-1-2
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
4212-1-HDR1
4212-1-HDR2
4212-2-Cascade
4212-3-Cascade
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.
4321-2-0-0-0 0-10 Volt
4321-2-0-0-0
4321-2-0-0-0 Volt Free
4321-3-0-0-0
4321-3-1-1-2
4321-4-0-0-2
4321-4-1-1-2
4321-6-0-0-2
4321 Saftey Chain with alarm
4321 Saftey Group
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
4323-5-1-1-1
4323-6-1-1-1
4323-7-1-1-1
4323-8-1-1-1
4323-8-1-1-3
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.
1B-1CT-1DHW-C7000F
1B-1CT-1DHW-GB162
1B-1CT-1VT-1DHW-C7000F
1B-1CT-1VT-1DHW-GB162
1B-1CT-1VT-2DHW-GB162
1B-1CT-2VT-2DHW-C7000F
1B-1CT-2VT-2DHW-GB162
1B-1VT-1DHW-C7000F
1B-1VT-1DHW-GB162
1B-3VT-1DHW-C7000F
1B-3VT-1DHW-GB162
2B-1CT-1DHW-C7000F
2B-1CT-1DHW-GB162
2B-1CT-1VT-2DHW-GB162
2B-1CT-2VT-2DHW-GB162
2B-1VT-1DHW-GB162
3B-1CT-1DHW-GB162
3B-1VT-1DHW-GB162
FM-AM
FM-MM
FM-MW
FM-SI
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
EM10-1-0-0-0 GB312
EM10-1-0-0-0
EM10-2-0-0-0 GB312
EM10-2-0-0-0
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
MCM10-4-0-10 vdc
MCM10-4-230 vac
MCM10-4-Volt Free
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
RC35-1-0-1-1
RC35-1-1-0-1
RC35-1-1-1-0
RC35-1-1-1-1
RC35-1-1-1-1
RC35-1-1-1-1+Solar
RC35-1-1-1-2
RC35-1-1-1-2+RC25
RC35-1-1-1-3