Vaillant VU 386/5-5 (H-GB) ecoTEC plus 637 Installation And Maintenance Instructions

Name: Vaillant VU 386/5-5 (H-GB) ecoTEC plus 637
Brand: Vaillant
Rating: 4 (1 reviews)

80 pages

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en Installation and maintenance instructions

ecoTEC plus

VU, VUW ..6/5-5

0020244997_07 - 15.07.2021

Table of Contents2
Safety4
Intended Use4
Qualification4
General Safety Information4
Regulations (Directives, Laws, Standards)6
List of Relevant Standards for Great Britain and Ireland6
Guarantee and Customer Service7
Technical Data8
Notes on the Documentation15
Product Description15
CE Marking15
Energy Saving Trust Endorsed Products15
Hot Water Association15
Information on the Identification Plate15
Serial Number16
Product Design16
Safety Devices17
Set-Up18
Checking the Scope of Delivery18
Dimensions18
Installation Site19
Minimum Clearances19
Compartment Ventilation19
Air/Flue Pipe19
Using the Installation Template22
Wall-Mounting the Product22
Removing/Installing the Front Casing23
Removing/Installing the Side Section23
Installation24
Installation Requirements24
Preparing for Installation24
Descaling the Water24
Installing the Gas Connection24
Checking the Gas Line for Leak-Tightness25
Installing the Hot and Cold Water Connection25
Connecting the Domestic Hot Water Cylinder25
Connecting the Heating Flow and Heating Return25
Installing the Drain Pipe on the Expansion Relief Valve25
Connecting the Condensate Discharge Pipe25
Flue Installation28
Electrical Installation28
Operation31
Operating Concept31
Calling up the Installer Level31
Live Monitor (Status Codes)31
Setting the Hot Water Temperature31
Start-Up32
Carrying out the Initial Start-Up32
Switching the Product on and off32
Running the Installation Assistants32
Restarting the Installation Assistants32
Test Programmes32
Performing a Gas Family Check33
Using Check Programmes33
Checking and Treating the Heating Water/Filling and Supplementary Water33
Filling the Condensate Trap34
Preventing Low Water Pressure34
Flushing the Heating Installation for the First Time ("Cold")34
Filling the Heating Installation35
Purging the Heating Installation35
Filling and Purging the Hot Water System36
Gas Inspection36
Thoroughly Flushing the Heating Installation ("Hot")38
Checking Leak-Tightness38
Adapting the Unit to the Heating Installation39
Burner Anti-Cycling Time39
Setting the Maintenance Interval39
Setting the Pump Output40
Setting the Bypass Valve40
11 Handing over to the End User41
Inspection and Maintenance42
Complete Service Interval Record Section42
Using Original Seals42
Preparing the Maintenance Work42
Function Menu42
Electronics Self-Test42
Checking the Electrical Plug Connections42
Removing the Compact Thermal Module42
Cleaning the Heat Exchanger43
12.10 Checking the Burner43
12.11 Cleaning the Condensate Trap44
12.12 Cleaning the Strainer in the Cold Water Inlet44
12.13 Installing the Compact Thermal Module44
12.14 Draining the Product44
Checking the Pre-Charge Pressure for the Internal Expansion Vessel44
Checking the Filling Pressure of the Heating Installation45
12.17 Checking the Quality of the Heating Water45
Completing Inspection and Maintenance Work45
12.19 Checking the Product for Leak-Tightness45
13 Troubleshooting45
Checking Service Messages45
Eliminating Faults45
Calling up and Clearing the Fault Memory45
Resetting Parameters to Factory Settings45
Preparing the Repair Work45
Replacing Defective Components46
Completing Repair Work50
Checking the Product for Leak-Tightness50
14 Decommissioning50
Temporarily Decommissioning the Product50
Permanently Decommissioning the Product50
15 Recycling and Disposal50
Appendix51
A Inspection and Maintenance Work51
B Installer Level - Overview52
C Overview of Diagnostics Codes54
D Status Codes - Overview59
E Overview of Fault Codes60
F Check Programmes - Overview63
G Function Menu - Overview63
H Wiring Diagrams64
Wiring Diagram, Product for Heating Mode Only, 12 - 35 Kw64
Wiring Diagram, Product for Heating Mode Only, ≥ 37 Kw66
Wiring Diagram, Product with Integrated Domestic Hot Water Generation, 12-35 Kw68
Wiring Diagram, Product with Integrated Domestic Hot Water Generation, ≥ 37 Kw70
Commissioning Checklist72
J Commissioning Flow Chart76
Index77

Brand	Vaillant
Model	VU 386/5-5 (H-GB) ecoTEC plus 637
Category	Boiler
Language	English

Vaillant VU 386/5-5 (H-GB) ecoTEC plus 637 Installation And Maintenance Instructions

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