background image

3 Product description

8

Operating instructions HOME 0020224354_00

Information
on the identi-
fication plate

Meaning

IP

Level of protection
Heating mode

Hot water generation

P

n

Nominal heat output range
in heating mode

P

nc

Nominal heat output range
in heating mode (condensing
technology)

P

Nominal heat output range
in hot water handling mode

Q

n

Nominal heating load range
in heating mode

Q

nw

Nominal heating load range
in hot water handling mode

T

max.

Max. flow temperature

NOx

NOx class for the product

Code (DSN)

Specific product code

"CE label" section

Read the instructions.

"Recycling and disposal"

section

GC no.

Gas council number

3.4 Product design

1

1

Control elements

3.5 Overview of the operator

control elements

1

2

3

4

5

1

Display

2

button

3

button

4

button

5

button

Summary of Contents for HOME COMBI 25 - A (H-GB)

Page 1: ...ator Operating instructions HOME COMBI GB IE Operating instructions Publisher manufacturer Vaillant GmbH Berghauser Str 40 D 42859 Remscheid Tel 49 21 91 18 0 Fax 49 21 91 18 28 10 info vaillant de www vaillant de ...

Page 2: ...y 10 4 3 Checking the heating system pressure 10 4 4 Filling the heating installation 11 4 5 Selecting the operating mode 11 4 6 Setting the hot water temperature 11 4 7 Setting the heating flow temperature 12 4 8 Product settings 12 4 9 Setting the timer 12 4 10 Switching the product to standby mode 13 4 11 Frost protection 13 5 Troubleshooting 13 5 1 Detecting and rectifying faults 13 5 2 Fault ...

Page 3: ...heating installations and for hot water generation Intended use includes the fol lowing observance of the operating instructions included for the product and any other system components compliance with all inspection and maintenance conditions listed in the instructions This product can be used by children aged from 8 years and above and persons with reduced physical sensory or mental capabilities...

Page 4: ... flames e g lighters matches Do not smoke Do not use any electrical switches mains plugs door bells telephones or other communication systems in the building If it is safe to do so close the emergency control valve or the main isolator If possible close the gas isol ator cock on the product Warn other occupants in the building by yelling or banging on doors or walls Leave the building immedi ately...

Page 5: ... the safety devices in any way Do not damage or remove any seals on components Do not make any changes The product itself to the gas air water and electricity supplies to the entire flue gas install ation to the entire condensate drain system to the expansion relief valve to the drain lines to constructional condi tions that may affect the operational reliability of the product 1 3 9 Risk of injur...

Page 6: ...Ensure that no chemical sub stances are stored at the in stallation site 1 3 11 Risk of material damage caused by frost Ensure that the heating in stallation always remains in operation during freezing con ditions and that all rooms are sufficiently heated If you cannot ensure the op eration have a competent person drain the heating in stallation ...

Page 7: ...e serial number is on the identification plate on the underside of the product 3 3 Information on the identification plate The identification plate is mounted on the underside of the product in the factory The identification plate keeps record of the country in which the product is to be installed Information on the identi fication plate Meaning Barcode with serial number Serial number For quality...

Page 8: ...y P Nominal heat output range in hot water handling mode Qn Nominal heating load range in heating mode Qnw Nominal heating load range in hot water handling mode Tmax Max flow temperature NOx NOx class for the product Code DSN Specific product code CE label section Read the instructions Recycling and disposal section GC no Gas council number 3 4 Product design 1 1 Control elements 3 5 Overview of t...

Page 9: ...r hot water deactivated Symbol Meaning Heating mode Permanently on Heating mode activated Flashing Burner on in heating mode Display flashing Switching on the product Fault Setting confirmed Fault in the product Appears instead of the basic display OFF Appears when the product goes into standby mode 3 7 Description of button functions Button Meaning Selecting the operating mode Confirm the operati...

Page 10: ...person who installed the unit will explain where the isolator devices are and how to handle them Ensure that the gas isolator cock is fully open Ensure that the stop cocks in the heat ing installation s flow and return are open Ensure that the cold water stop cock is open 4 1 2 Starting up the product 1 2 Press the 2 button When the unit is switched on the Basic display is shown in the display 1 4...

Page 11: ...ime any subsequent top ups and the water quality The operator alone is respons ible for topping up the water in the heating installation 1 Open all radiator valves thermostatic radiator valves of the heating installa tion 2 Slowly open the filling cock as shown to you by the competent person 3 Fill with water until the required filling pressure is reached 4 Check the filling pressure in the displa...

Page 12: ... heating mode activated Set the maximum heating flow tem perature on the boiler Page 12 Set the room temperature on the controller The actual heating flow temper ature is set automatically by the controller Applicability External sensor Conditions Outside temperature sensor connec ted to the boiler with heating mode activated When you press the or but ton The display shows the heating flow tempera...

Page 13: ...te until the burner anti cycling temperature is reached Burner ignition temperature 7 Burner anti cycling temperature 35 The hot water circuit cold and hot water is not protected by the boiler Frost protection for the system can only be guaranteed by the boiler A controller is required to control the tem perature of the system 4 11 2 Frost protection for the system Note Ensure that the product s p...

Page 14: ... faults and particularly for blockages You must not be able to see or feel any obstructions in the condensate drain pipe work and tundish If you notice a fault have it rectified by a competent person 7 Decommissioning 7 1 Temporarily decommissioning the product Temporarily decommission the product only if there is no risk of frost Switch off the product via the main switch provided on site The dis...

Page 15: ... guarantee Registering with us Registration is simple Just complete the Guarantee Registration Card and return to Vaillant within 30 days of installation Your details will then be automatically registered within the Vaillant scheme Immediate help If your Vaillant boiler develops a fault your first action should be to contact your in staller as his professional assessment is needed under the terms ...

Page 16: ...ck on the product is closed Open both gas isolator cocks The cold water stop cock is closed Open the cold water stop cock The power supply in the building is dis connected Check the fuse in the build ing The product automatically switches on after the power supply is restored The product is switched off Switch on the product Switch ing on the product section The heating flow temperature or hot wat...

Page 17: ...Purging the radiators If the problem occurs again In form the competent person After three successive failed ignition attempts the system switches to fault mode fault code F 28 Press the button The product carries out a new ignition attempt If the ignition problem is not rec tified after three fault clearance attempts contact a competent person Hot water gener ation functioning correctly heating d...

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Page 20: ...wables 0207 022 0928 Vaillant Service Solutions 0330 100 3461 Spares Technical Enquiries 01773 596615 info vaillant co uk technicalspares groupservice co uk www vaillant co uk These instructions or parts thereof are protected by copyright and may be reproduced or distributed only with the manufacturer s written consent ...

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