Vaillant THERMOcompact VC GB 282 EH User Manual

Lists relevant standards and codes of practice for installation.

Guidelines for choosing the boiler's installation location, considering ventilation and access.

Requirements for gas supply, pipe sizing, and testing.

Electrical connection requirements, earthing, and isolation.

Recommendations and guidance for flue installation and terminal positioning.

Guidelines for air supply requirements, including cupboard installations.

Guidance on water circulation systems, pipework, and cylinder requirements.

Guidance on radiator sizing based on boiler operating temperature.

Guidance on sizing pipework for the heating system and pump head.

Information about the integrated system bypass for TRVs.

Reference for details on open vented system installations.

Requirements for sealed systems, excluding feed/expansion cisterns.

Details about the ready-assembled pressure relief valve and its connection.

Information on the factory-fitted pressure gauge for filling and testing.

Information on the built-in expansion vessel and external options.

Procedures for filling sealed systems and potential make-up needs.

Requirements for installing two appliances in parallel.

General view of pipework for gas and water connections.

Information on automatic air vents and system venting during filling.

Requirements for wall mounting, clearances, and timber-framed buildings.

Lists connection accessories for the boiler installation.

Instructions for flushing and connecting heating system flow and return pipes.

Guidelines for connecting the discharge pipe for the pressure relief valve.

Reference to air/flue duct installation instructions before proceeding.

Steps for fitting the appliance to the connection group and securing it.

Instructions for fitting the gas service valve and connecting the gas supply pipe.

Reference to air/flue duct installation for appliance connection.

Wiring requirements for external controls like programmers and thermostats.

Details for connecting programmers, motorized valves, and thermostats.

Explains different operating modes for the circulating pump.

Details the reignition delay feature and its adjustment.

Checks for short circuit, earth continuity, polarity, and resistance.

Inspection and testing of the gas installation for soundness and purging.

Procedures for flushing, filling, and venting the central heating system.

Instructions for the initial lighting of the appliance by a qualified fitter.

Method for testing gas soundness of burner connections.

Procedure to test the flame supervision device and lockout function.

How to check and set main burner gas pressure.

Testing the flow thermostat's modulation function.

Checking water soundness, draining, refilling, and adjusting system pressure.

Visual check of the air/flue duct assembly's installation and function.

Reference to chapter 12 for appliance case assembly.

Handing over instructions, advising on frost protection and servicing.

Instructions for changing door hinge orientation from right to left.

Instructions for fitting side panels to the appliance frame.

Instructions for screwing on the screen plate.

Steps to engage and secure the upper appliance door.

Steps to engage and secure the lower appliance door.

Instructions for positioning and fixing the user instructions label on the inner door.

Inspecting the boiler exterior, pipework, electricals, and flue for damage.

Procedures for safely turning off the boiler before servicing.

Steps to remove the appliance's outer case and screen plate.

Steps for removing the inner case front panel.

Procedures for cleaning the burner, injector nozzles, and test points.

Instructions for cleaning the main heat exchanger.

How to check the expansion vessel pressure and repressurise if needed.

Steps to recommission the appliance after servicing.

Step-by-step guide for replacing ignition and flame sensing electrodes.

Instructions for disconnecting and replacing the NTC resistor probe.

Procedure for changing the automatic air vent.

Accessing and replacing components within the gas section.

Steps for changing the appliance's circulating pump.

Procedures for accessing and replacing components within the control box.

Procedure for replacing the overheat cut-off device.

Step-by-step guide for replacing the fan motor.

Instructions for replacing the air pressure switch.

Guidance on replacing the CH expansion vessel.

Instructions for removing the air/flue duct assembly.

Information on fitting an external expansion vessel.

Procedure for changing the thermometer sensor.

Steps to change the pressure gauge.

Instructions for changing the system bypass valve.

Procedure to replace the central heating overheat thermostat.

Steps to replace the central heating pressure relief valve.

Detailed steps for replacing the main heat exchanger.

Procedure for changing the combustion chamber duct and insulation.

How to release pressure from the central heating system.

Steps for draining the central heating system.

Guide to replacing the safety isolating transformer.

Troubleshooting electrical supply issues, checking mains and input voltage.

Troubleshooting main switch and overheat cut-off device functionality.

Troubleshooting steps for pump operation issues.

Troubleshooting steps for the flue fan system.

Troubleshooting ignition system and gas section faults.

Troubleshooting burner modulation and gas pressure issues.

A functional flow diagram illustrating boiler operation and control logic.

A detailed wiring diagram for the boiler models.