Bosch Worcester Greenstar CDi Compact ErP Series - Protection Function

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FAULT FINDING AND DIAGNOSIS

CDi Compact

ErP

- 6 720 813 276 (2015/07)64

8.4 Protection function

Fig. 124 Protection function

Main Page

Table of Contents2
Key to Symbols and Safety Instructions4
Key to Symbols4
Safety Precautions4
Appliance Information6
Appliance6
Layout7
Technical Data9
Energy Efficiency10
Pre-Installation12
Cleaning Primary Systems12
Mains Supply12
Electrical Supply12
Gas Supply12
Water Supply12
Water Systems and Pipe Work13
Condensate Pipe Work14
Internal Connections15
External Connections15
Pressure Relief Pipe Work16
Boiler Location and Clearances17
Installation17
Installation and Servicing Clearances17
Compartments17
Bathrooms18
Plumbing Manifold18
Connections18
Flue Options19
Flue Lengths19
Flue Terminal Positions21
Plume Management Terminal Positions22
Determine the Plume Management System Length23
Installation24
Unpacking Wall Frame & Ancillary Items24
Wall Mounting Template & Flue Opening24
Unpacking the Appliance25
Pre-Plumbing Boiler Connections26
Hanging the Boiler28
Flue Turret/Adapter Installation29
Electrical30
Mounting Optional Plug-In Controls31
New Complete System Installations32
Existing Installations33
Commissioning34
Pre-Commissioning Checks34
Filling the System34
Water Treatment34
Starting the Appliance35
Boiler Start up Screens36
Commissioning37
Checking the Gas Inlet Pressure37
Checking the Gas Rate38
Gas Rating Test38
Checking for Leaks During Operation38
Domestic Hot Water38
Domestic Hot Water Eco and Preheat Modes38
CO and Combustion Checks39
Finishing Commissioning40
Replacing the Boiler Case40
Securing the Control Panel40
Fitting the Fascia Flap40
Installing Bottom Panel40
Hand over41
Boiler Guarantee41
Service and Spares42
Inspection and Service42
Checking Flue Integrity42
Component Access43
Checking the Gas Inlet Pressure43
Fan Pressure Test43
Setting the Boiler to Maximum43
Fan Pressure44
Flue Gas Analysis44
Cleaning the Heat Exchanger45
Cleaning the Siphon45
Cleaning the Primary Heat Exchanger46
Replacement of Parts47
Removing the Outer Case47
Draining the Boiler47
Syphon Removal48
Primary Sensor (CH NTC)48
Maximum Safety Sensor (NTC)48
Flue Overheat Thermostat48
Air Pressure Switch49
Auto Air Vent49
Gas Valve49
Fan Assembly50
Air/Gas Flap Valve Assembly51
Ignition Transformer52
Electrode Assembly52
Burner Housing, Burner/ Gasket52
Heat Exchanger53
Diverter Valve Motor and Diverter Valve Removal53
DHW Temperature Sensor (NTC)54
Pump Head54
Flow Sensor, Flow Restrictor and Filter Removal54
Flow Regulator54
Pressure Gauge55
Boiler Return Sensor (NTC)55
Drain Tap55
Pressure Relief Valve55
DHW Pressure Relief Valve56
DHW Plate Heat Exchanger56
Hydraulic Block Removal56
Bypass Valve56
Access to Boiler Control Components57
Replacing the Control Unit57
Expansion Vessel58
Short Parts List60
Fault Finding and Diagnosis61
Internal Wiring Diagram61
Central Heating Function62
Preheat and DHW Function63
Protection Function64
Information and Service Menus65
Selecting the Information Menu66
Selecting Service Menus67
Menu 1 - System Parameters67
Menu 2 - Boiler Parameters67
Reset to Factory Settings69
Menu 3 - Boiler Maximum & Minimum Limits69
Using the Test Menu69
Fault Codes72

Bosch Worcester Greenstar CDi Compact ErP Series - Protection Function

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