Manual Vaillant aquaPLUS VUI (page 2 of 12) (English)

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Information to the documentation . . . . . . . . . . . . 2

Attachment and safe storage of the documentation 2

Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1 General information . . . . . . . . . . . . . . . . . . . . . . 3

1.1 For your information . . . . . . . . . . . . . . . . . . . . . 3

1.2 Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 Specified use . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4 EC designation . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.5 Factory Guarantee . . . . . . . . . . . . . . . . . . . . . . . 3

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . 4

2.1.1 Setup and adjustments . . . . . . . . . . . . . . . . . . 4

2.1.2 Gas smell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1.3 Modifications in and around the boiler . . . . . . 4

2.1.4 Explosive and flammable materials . . . . . . . . . 4

2.1.5 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2 General precautions . . . . . . . . . . . . . . . . . . . . . 4

2.2.1 Corrosion protection . . . . . . . . . . . . . . . . . . . . . 4

2.2.2 Drinking water supply pressure . . . . . . . . . . . . 4

3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1 Overwiev . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1.1 Operating controls . . . . . . . . . . . . . . . . . . . . . . . 5

3.1.2 Boiler display . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.2 Initial checks before turning ON . . . . . . . . . . . 6

3.2.1 Open the service valves . . . . . . . . . . . . . . . . . . 6

3.2.2 Check the water contents . . . . . . . . . . . . . . . . . 6

3.3 Domestic hot water operation . . . . . . . . . . . . . 6

3.3.1 Warmstart operation . . . . . . . . . . . . . . . . . . . . 7

3.3.2 Obtaining hot water . . . . . . . . . . . . . . . . . . . . . . 7

3.4 Heating operation . . . . . . . . . . . . . . . . . . . . . . . 8

3.4.1 Setting the maximum radiator

temperature control . . . . . . . . . . . . . . . . . . . . . 8

3.4.2 Setting the external controls . . . . . . . . . . . . . . 8

3.5 Status display . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.6 Resetting the appliance . . . . . . . . . . . . . . . . . . . 9

3.6.1 Faults in the hot water system . . . . . . . . . . . . . 10

3.7 Turning the boiler OFF . . . . . . . . . . . . . . . . . . . 10

3.7.1 To turn OFF the central heating only

(Summer mode) . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.7.2 To turn OFF central heating and hot water

for short periods of time . . . . . . . . . . . . . . . . . . 11

3.8 Care and maintenance . . . . . . . . . . . . . . . . . . . 11

3.9 Frost protection . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.10 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table of contents Information to the documentation

Instructions for use VUI 362-7

Important note!

This is possibly a dangerous situation for the

product and the environment!

Note!

Useful information and guidelines.

• This symbol is used to indicate a required step.

834641_12GB_032005.qxd 09.03.2005 16:42 Uhr Seite 2

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Others manual(s) of Vaillant aquaPLUS VUI

Vaillant aquaPLUS VUI Installation Guide - English - 56 pages

Vaillant aquaPLUS VUI User Manual - English, German - 40 pages

Vaillant aquaPLUS VUI Manual - Dutch - 2 pages

Vaillant aquaPLUS VUI User Manual - Dutch, French - 40 pages

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