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Vaillant Manuals
Boiler
VCW GB 242 EH
Instructions for installation and servicing
Vaillant VCW GB 242 EH Instructions For Installation And Servicing
Wall-mounted boilers combicompact series for central heating and instantaneous domestic hot water fan-assisted room sealed
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Table Of Contents
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Contents
Table of Contents
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Table of Contents
Contents
Technical Data
Construction of Appliance
Function
General Requirements
Related Documents
Location
Gas Supply
Flue System
Terminal Position for Fan-Assisted Flue
Air Supply
Cupboard or Compartment Air Supply
Water Circulation System
Single Pipe System
Two-Pipe System
Circulating Pump
System By-Pass
Open Vented System
Sealed Systems
Pressure Relief Valve
Pressure Gauge
Expansion Vessel
DHW Expansion Vessel Accessory
Sizing of Additional Expansion Vessels
Dimensions
Installation of the Boiler
Installation Accessories
Delivery
Installation Sequence
Domestic Cold and Hot Water Connection
Connection of Heating System
Pressure Relief Valve and Overflow
Air/Flue Duct
Fitting the Appliance
Gas Connection
Connection of the Air/Flue Duct to the Appliance
Electrical Installation
List of Terminals
Connection of Vaillant Room Thermostat
Thermostatic Radiator Valves
Frost Protection
Operating Modes of the System Water Circulating Pump
Reignition Delay for the Heating System
Timed Automatic Set-Back Operation
ON/OFF Operation and Room Temperature Control
Schematic Appliance Circuit Diagram
Commissioning and Testing
Gas Installation
Central Heating System
Filling the Domestic Hot Water Circuit
Lighting the Boiler
Gas Soundness
Test of Flame Supervision Device
Gas Pressure
Main Burner Pressure
Flow Thermostat
Water Soundness and Final System Flush
Assembling
Door Hinges
Side Panels
Screen Plate
Upper Appliance Door
Lower Appliance Door
User Operating Instructions Labels
Servicing of Boiler
Boiler Inspection
Turning off the Boiler
Removing Outer Case
Removing Inner Case
Cleaning of Burner
Cleaning of Main Heat Exchanger
Check of C.H. Expansion Vessel
Recommissioning the Appliance
Replacement of Parts
Change of Electrodes
Change of NTC Resistor
Change of Automatic Air Vent
Change of Diverter Valve or Parts
Electrical Isolation
Change of Diverter Valve Micro-Switches
Removal of Complete Diverter Valve
Change of Diverter Valve Stuffing Box
Change of Diaphragm
Change of Internal Parts
Reassembling
Gas Section
Change of Operator
Change of Gas Section
Change of Differential Valve
Change of Gas Section Stuffing Box
Change of Pump
Opening Control Box
Change of Fan Control Circuit Board
Change of Electronic Thermostat Circuit Board
Change of Flame Supervision Circuit Board
Change of Main Switch Circuit Board
Change of Diaphragm Pump
Change of Ignition Transformer
Change of Safety Isolating Transformer
Change of Overheat Cut-Off Device
Change of Fan
Change of Air Pressure Switch
Removal of Servo Control Valve Assembly
Change of Servo Control Valve Assembly
Change of D.H.W. Microswitch
Cleaning of Water Section
Adjustment of Servo Control Valve
Change of Expansion Vessel
Airflue Duct Assembly Arranged to the Rear and Side
External Replacement Vessel
Change of Thermometer
Change of Pressure Gauge
Change of System Bypass
Change of Domestic Hot Water Overheat Thermostat
Change of Central Heating Overheat Thermostat
Change of Domestic Hot Water Pressure Relief Valve
Change of Central Heating Pressure Relief Valve
Change of D.H.W. Heat Exchanger
Change of Main Heat Exchanger
Change of Combustion Chamber Duct and Insulation
Releasing C.H. System Pressure
Draining Boiler C.H. Circuit
Fault Finding
Check Electrical Supply
Check Main Switch and Overheat Cut-Off Device
Check Operation of Pump
Check Flue Fan System
Check Operation of Diverter Valve
Check Ignition System and Gas Section
Check Burner Modulation
Check D.H.W. Operation
Electrical Diagrams
Functional Flow Diagram
Wiring Diagram
Short Part List
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This manual is also suitable for:
Vcw gb 282 eh
Vcw gb 282 eb
Vcw gb 242 eb
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