Do you have a question about the Vaillant VU 186/5-5 (H-GB) ecoTEC plus 618 and is the answer not in the manual?
Defines the proper application and prohibited uses of the product.
Specifies the necessary professional training and competence for performing work.
Covers essential safety guidelines regarding gas, flue gas, air supply, electricity, and weight.
Explains the CE marking and product compliance with directives.
Describes the information found on the product's identification plate.
Locates and explains the product's serial number.
Details functional elements for heating and hot water generation modes.
Instructions to verify all components are present and intact upon delivery.
Provides detailed physical dimensions of the boiler unit.
Specifies the minimum required space around the boiler for installation and maintenance.
Discusses ventilation requirements for installation enclosures.
Outlines regulations and guidelines for the installation of air and flue pipes.
Describes the installation of horizontal concentric flue systems.
Details requirements for protecting flue terminals from damage or contact.
Describes the installation of vertical concentric flue systems.
Procedures for removing and reinstalling the product's side sections.
Covers gas group information, purging, and correct gas type usage.
Steps for preparing the installation, including checking gas supply and system components.
Guidance on connecting the gas supply to the boiler.
Critical safety instructions for electrical connections to prevent shocks.
How to connect external controls and thermostats to the boiler's electronics.
Overview of the operating philosophy and access to installer settings.
Explains how to view product status codes for monitoring operation.
Instructions for adjusting the domestic hot water temperature, including Legionella safety.
Steps for initial product start-up, including Benchmark Checklist usage.
Guide to using the product's installation assistant for setup.
How to access and utilize various product check programmes.
Procedures for checking and treating heating water quality and inhibitors.
Steps for purging air from the heating system.
Verifying the product's factory-set gas configuration.
Procedures for checking and verifying the gas flow rate.
How to perform leak-tightness checks on the gas, heating, and hot water circuits.
Adjusting the time the burner waits after switching off to prevent short cycling.
Configuring the interval for scheduled maintenance checks.
Procedure for setting the bypass valve to ensure correct pump operation.
General procedures and checks for annual product inspection and maintenance.
Steps to take before commencing maintenance work on the boiler.
How to use the function menu to test components.
Instructions for safely removing the product's compact thermal module.
Inspecting the burner for damage and checking insulating mats.
Procedure for cleaning the strainer in the cold water inlet.
Steps for safely draining the boiler's internal components.
How to check and adjust the pre-charge pressure of the internal expansion vessel.
How to interpret and act on product service messages.
Guidance on identifying and resolving common product faults.
How to access, view, and clear the fault memory log.
Steps to take to safely prepare the product for repair.
Detailed steps for removing and replacing the burner.
Instructions for replacing the gas valve assembly.
Steps for temporarily taking the product out of service.
Procedures for permanently removing the product from service.
Electrical wiring diagram for heating-only models (12-35 kW).
Electrical wiring diagram for heating-only models (≥ 37 kW).
Electrical wiring diagram for models with integrated DHW (12-35 kW).
Electrical wiring diagram for models with integrated DHW (≥ 37 kW).