Vaillant thermocompact vu 142/1 e - Removal of Printed Circuit Boards (PCBs); Replacement of Switch and Control Boards

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Table of Contents2
Specifications4
Dimensions5
Boiler Connections5
Function Diagram6
General Requirements7
Boiler Location7
Gas Supply8
Flue System8
Flue Termination9
Air Supply10
Electricity Supply10
Guide to System Requirements10
Water Circulation System10
Filling and Make up11
Pressure Relief Valve11
Pressure and Temperature Gauge11
Sizing of Additional Expansion Vessel12
System By-Pass/Venting12
Circulation Pump12
Expansion Vessel12
Boiler Installation Sequence13
Boiler Delivery13
Preparation of Boiler Location14
Installation Accessories14
Select Position of Boiler14
Using the Boiler Template15
Fitting the Boiler Hanging Bracket15
Pipework Connections16
Installing the Flue System16
Fitting the Boiler16
Mounting the Boiler16
Connecting the Flue Assembly to the Boiler17
Horizontal Flue17
Vertical Flue18
Electrical Installation19
General Electrical Requirements19
Connecting to Mains Supply19
Connection of External Electrical Controls20
External Electrical Controls20
Thermostatic Radiator Valves21
Circulating Pump21
Anti-Cycling 'Economiser' Control21
Frost Protection21
Commissioning23
Preliminary Electrical Checks23
Filling the Heating System24
Initial System Flush ('Cold')24
Initial Lighting25
Gas Inlet Working Pressure26
Main Burner Pressure26
Adjusting the Central Heating Output (Range Rating)27
Functional Checks28
Checking Flame Supervision Device29
Final System Flush ('Hot')29
Fitting Case29
Door Hinged at Left Hand Side/Fit Bottom Cover29
Initial Inspection30
Hand over to User30
Servicing30
Routine Maintenance31
Remove Front Case31
Turn off the Boiler31
Inspect Main Heat Exchanger31
Re-Commissioning the Boiler32
Inspect Burner32
Check Expansion Vessel32
Releasing System Water Pressure and Draining the Boiler33
Initial Preparation33
Turning off the Boiler33
Parts Replacement33
Removal of Front Casing34
Removal of Side Casings34
Removal of Combustion Chamber Cover34
Removal of Heat Exchanger34
Replacement of Fan35
Replacement of Air Pressure Switch35
Replacement of Burner36
Replacement of Electrodes36
Replacement of Gas Valve37
Replacement of NTC Temperature Sensor37
Replacement of Main Heat Exchanger38
Replacement of Modulating Regulator38
Replacement of Expansion Vessel39
Replacemet of Transformer40
Replacement of Overheat Thermostat40
Replacement of Pump40
Replacement of Automatic Air Release41
Replacement of Automatic Bypass41
Replacement of Differential Pressure Switch42
Replacement of Pressure and Temperature Gauge42
Removal of Printed Circuit Boards (Pcbs)43
Replacement of Switch and Control Boards43
Fault Finding44
Colored Indicators44
Prelimitary Checks44
Check Electrical Supply and Appliance Fuses45
Check Main On/Off Control, Overheat Thermostat and Anti-Surge Fuse46
Check Central Heating Control and External Controls47
Check Operation of Pump48
Check Fan/Flue Gas System49
Check Operation of Differential Pressure Switch50
Check Ignition System and Gas Section51
Check Operation of Burner and Modulation52
Electrical Diagrams54
Functional Flow Diagram54
Wiring Diagram55
Schematic Appliance Circuit Diagram56
Short Parts List57
Technical Data59
Spare Parts Catalogue61
Table of Contents62
View of Appliances62
View of Appliances63
General View Sheets64
- General View Sheets VC 110 T, XT65
- General View Sheets VC 112,142 E66
- General View Sheets VC 180,240 T, VCW 240,280 T, XT67
- General View Sheets VC-VCW 221 T68
- General View Sheets VC 182,242,282 E, VCW 242,282 E69
Main Component 0170
Flow Switch70
- Main Component 01 Water Valve, Servo Control Valve (to 04/95)71
- Main Component 01 Water Valve, Servo Control Valve (from 05/95)75
- Main Component 01 Hydraulically Controlled Diverter Valve77
- Main Component 01 Flow Switch79
Main Component 0481
Burner, Pilotburner81
- Main Component 04 Burner, Pilotburner82
- VC 110 T H,B82
- Main Component 04 Burner84
- VC 112 E H,B84
Main Component85
- VC 142 E H,B86
- Main Component 04 Burner, Pilotburner Diagram88
- VC 180,240 T, Vcw 240,280 T H,B88
- VC-Vcw 221 T H,B90
- Main Component 04 Burner Diagram92
- VC 182,242,282 E, Vcw 242,282 E H,B92
- VC 110,180,240 T, Vcw 240,280 T100
- VC 112,182,242,282 E, Vcw 242,282 E102
- Heat Exchanger103
- VC-Vcw 221106
- Main Component 06 Heat Exchanger (DHW)108
- Main Component 07110
Casing Parts110
Wallcase110
Main Component 07 Casing Parts111
Main Component112
Main Component113
- VC 142 E113
Main Component114
- VC 180,240 T, Vcw 240,280 T115
- VC 182,242,282 E, Vcw 242,282 E118
- VC-Vcw 221 T119
- Main Component 07 Air/Flue Duct Assembly121
- VC 112,142,182,242,282 E, Vcw 242,282 E121
- Main Component 07 Wallcase123
- VC-Vcw 221 T123
- (Acc.-No. 9293,9020,9056,9076,9077)125
- Main Component 07 Vertical Air/Flue Duct Assembly125
- VC 112,142,182,242,282 E, Vcw 242,282 E125
  - Main Component 08127
  - Main Component 08 Connection Parts128
- VC 110 T, 112,142 E128
- VC 180-242,282, Vcw130
- Main Component 08 Connection Piping134
- VC 110,180,221,240 T134
- VC 112,142,182,242,282 E136
- Vcw 221,240,280 T138
- Vcw 242,282 E140
- Main Component 08 Acc.-Connection Parts142
- VC 110-282, Vcw142
- Main Component 13144
- Main Component 13 Control Box145
- Main Component 13 Flue Sensor153
- Main Component 16155
- Main Component 16 Pump156
- Main Component 18158
- Main Component 18 Expansion Vessel159
Expansion Vessel160

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Vaillant thermocompact vu 142/1 e - Removal of Printed Circuit Boards (PCBs); Replacement of Switch and Control Boards

Table of Contents

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