AroTHERM VWL 115-2 - Water pump VAILLANT - Free user manual and instructions

Product Type	Air-to-Water Heat Pump
Model	aroTHERM VWL 115/2
Brand	Vaillant
Article Number	001001972
Power Supply	230 V AC, 50 Hz
Refrigerant	R410A
Refrigerant GWP	1725
Control System	Digital Information and Analysis System (DIA)
Operator Interface	VWZ AI Control Module with Display and Selection Buttons
Operating Modes	Heating, Cooling
Target Flow Temperature	Adjustable via system controller
Frost Protection	Automatic when product is switched on
Safety Devices	Expansion relief valve, overheat protection, pressure switches
Operator Maintenance	Check system pressure, clean casing with damp cloth, remove debris
Professional Servicing	Annual inspection and maintenance by competent person
Disposal	Recycle at collection point; coolant must be recovered by certified professional
Warranty	Parts and labour guarantee as per registration card (register within 30 days)
CE Certification	Yes

Frequently Asked Questions - AroTHERM VWL 115-2 VAILLANT

What should I do if a fault message appears on the display?

Fault messages have priority and display as F.XXX. Note the code and contact a competent person. You can also view more status details in the Live Monitor menu.

How do I activate frost protection?

Frost protection is automatically active when the product is switched on. Ensure the power supply is connected and the product is not turned off.

What is the correct system pressure for the heating installation?

The building circuit pressure should be checked regularly via Menu → Live Monitor → Building circuit pressure. If it falls below 0.05 MPa (0.5 bar), top up with water.

Why does the heat pump make hissing or knocking noises?

Hissing/whistling can occur when the heating demand stops due to coolant flow. Creaking noises are from casing expansion/contraction. Humming is normal compressor operation. These are not faults.

Is it normal for steam to escape from the heat pump in winter?

Yes, during defrost cycles the heat pump melts ice on the unit, producing steam. This is normal and not a malfunction.

How often should the heat pump be serviced?

Annual servicing by a competent person is recommended. This ensures safe, reliable operation and maintains warranty validity.

Can I clean the heat pump myself?

Yes, you can clean the casing with a damp cloth and mild soap. Do not use abrasive cleaners, high-pressure cleaners, or touch uninsulated pipes. Regularly remove leaves and debris from around the unit.

What is covered by the Vaillant guarantee?

Vaillant provides a full parts and labour guarantee for the duration on the registration card. The card must be completed and returned within 30 days of installation. Annual servicing is required to guarantee after the first year.

How do I dispose of the heat pump at end of life?

Do not dispose as household waste. Take it to a recycling collection point for electrical/electronic devices. The R410A refrigerant must be recovered by a certified professional.

What should I do if the power goes out during freezing weather?

If a power cut occurs, the heating system may be at risk of frost damage. Contact a competent person to discuss emergency power options. Ensure the product remains connected to the power supply to keep frost protection active.

USER MANUAL AroTHERM VWL 115-2 VAILLANT

Instructions for use

For the operator

Instructions for use

Exterior view of a white industrial air purifier unit with slatted ventilation slots (no text or symbols visible)

aroTHERM

VWL 85/2; VWL 115/2

UK

Publisher/manufacturer

Vaillant GmbH

1.1 Action-related warnings 4

1.2 General safety information 4

1.3 Intended use.... 9

1.4 CE label 10

2 Notes on the documentation 11

2.1 Observing other applicable documents ..... 11

2.2 Storing documents.... 11

2.3 Applicability of the instructions .... 11

3 Product description.... 12

3.1 Design of the heat pump system 12

3.2 Type designation and serial number 14

3.3 Overview of the operator control elements of the VWZ AI heat pump control module.....

3.4 Digital Information and Analysis System (DIA).... 14

4 Operation.... 16

4.1 Operating concept 16

4.2 Basic display.... 17

4.3 Operating levels.... 17

4.4 Design of the menu.... 18

4.5 Live Monitor (status codes) 19

4.6 Displaying the building circuit pressure 19

4.7 Reading the operating statistics 19

4.8 Displaying contact data.... 19

4.9 Displaying the serial number and article number.... 19

4.10 Setting the display contrast 19

4.11 Setting the language.... 20

5 Operation.... 20

5.1 Switching the product on/off 20

5.2 Activating frost protection 20

5.3 Setting the target feed temperature in heating mode.... 20

5.4 Setting a room thermostat or weather compensator.... 20

5.5 Checks and maintenance carried out by the operator 21

5.6 Having the product temporarily decommissioned.... 21

146 Troubleshooting 22

6.1 Reading the fault message.... 22

6.2 Detecting and rectifying faults 23

7 Decommissioning.... 24

7.1 Having the product permanently decommissioned.... 24

8 Recycling and disposal.... 24

8.1 Disposing of the packaging 24

8.2 Disposing of the product and accessories...... 24

8.3 Arranging disposal of coolant 24

Contents

9 Guarantee and customer service.... 24

9.1 Guarantee.... 24

9.2 Customer service.... 25

Index 26

1 Safety

1 Safety

1.1 Action-related warnings

Classification of action-related warnings

The action-related warnings are classified in accordance with the severity of the possible danger using the following warning signs and signal words:

Warning symbols and signal words

Danger!

Imminent danger to life or risk of severe personal injury

Danger!

Risk of death from electric shock

Warning.

Risk of minor personal injury

Caution.

Risk of material or environmental damage

1.2 General safety information

1.2.1 Danger due to incorrect handling

▶ Read through these instructions carefully.
- When using the product, observe the general safety information and warnings.
When using the product, observe all applicable national regulations.

1.2.2 Risk of death due to explosions and scaldings from brine fluid

The brine fluid ethylene and propylene glycol is extremely flammable, both as liquid and steam. A potentially explosive combination of steam/air may form.

• Keep away from heat, sparks, naked flames and hot surfaces.
  ▶ Prevent steam/air mixtures from forming. Keep brine fluid vessels closed.
• Observe the safety data sheet that accompanies the brine fluid.

1.2.3 Danger due to improper use

There is a risk of injury or death to the user or others, or of damage to the product and other

property in the event of improper use or use for which it is not intended.

Only use the product in accordance with the provisions.

1.2.4 Preventing the risk of injury from corrosive brine fluid

The brine fluid ethylene glycol is harmful to health.

• Avoid contact with the skin and eyes.
  ▶ Always wear gloves and protective goggles.
  ▶ Do not inhale or swallow.
• Observe the safety data sheet that accompanies the brine fluid.

1.2.5 Preventing the risk of injury due to scalding from hot and cold components

Particularly in the coolant circuit, the components of the heat pump can reach high temperatures or extremely low temperatures.

• Do not touch any uninsulated pipelines in any part of the heating installation.
  ▶ Do not remove any casing sections.

1.2.6 Risk of being scalded by hot drinking water

There is a risk of scalding at the hot water draw-off points if the hot water temperatures are greater than 50 °C. Young children and elderly persons are particularly at risk, even at lower temperatures.

- Select the temperature so that nobody is at risk.

1 Safety

1.2.7 Risk of death due to lack of safety devices

A lack of safety devices (e.g. expansion relief valve, expansion vessel) can lead to potentially fatal scalding and other injuries, e.g. due to explosions.

- Have your competent person check that all required isolator devices are present in your heating installation.

1.2.8 Preventing the risk of injury from freezing as a result of touching coolant

The heat pump is delivered with an operational filling of R410A coolant. This is a chlorine-free coolant which does not affect the Earth's ozone layer. R410A is neither a fire hazard nor an explosion risk. Escaping coolant may cause freezing if the exit point is touched.

▶ If coolant escapes, do not touch any components of the heat pump.

Do not inhale any steam or gases that escape from the coolant circuit as a result of leaks.

Avoid skin or eye contact with the coolant. In the event of skin or eye contact with the coolant, seek medical advice.

1.2.9 Danger due to changes to the product environment

There is a risk of injury or death to the user or others, or of damage to the product and other property, in the event of changes to the product environment.

Changes must not be made to the following equipment:

- The heat pump

- The heat pump environment

The drain line and expansion relief valve for the heating water

- The water and electricity supply lines

The heat pump's condensate drain pipework

- The structural conditions that may affect the operational safety of the product.

1.2.10 Risk of injury and material damage due to incorrect maintenance or repairs

As a result of unauthorised interference or tampering with the product or parts of the system, the operational safety of the product can no longer be ensured and the guaranteed therefore becomes void.

▶ Never interfere or tamper with the product or other parts of the system.
▶ Never try to carry out maintenance work repairs on the product yourself.
- Do not damage or remove any seals on components. Only qualified competent persons and factory service personnel are authorised to make modifications to sealed components.
- Have inspection and maintenance work carried out by a competent person.

Frost poses a risk of damage to the product and the whole heating installation.

- You should therefore ensure that the heating installation always remains in operation during freezing conditions and that all rooms are sufficiently heated.

Even if rooms, or the whole dwelling, are not in use for certain periods, the heating must remain in operation.

Frost protection and monitoring devices are only active while the product is connected to the power supply. The product must be

connected to the power supply.

1.2.12 Frost damage caused by insufficient room temperature

If the room temperature is set too low in individual rooms, it cannot be ruled out that sections of the heating installation might be damaged by frost.

1 Safety

If you are going to be away during a co period, ensure that the heating installation remains in operation and that the rooms are sufficiently heated.

- You must observe the frost protection instructions.

1.2.13 Frost damage caused by a power cut

During installation, your competent person connected your product to the power mains. If the power supply is cut, it is possible that parts of the heating installation may become damaged by frost. If you want to use an emergency power generator to maintain the operational readiness of the product during a power cut, note the following:

• Contact your competent person for advice on installing an emergency power generator.
• Ensure that the technical values of this generator (frequency, voltage, earthing) match those of the power mains.

1d2.14 Malfunction caused by incorrect system pressure

To avoid operating the system with too little water and thus prevent resulting damage, note the following:

▶ Check the system pressure of the heating installation at regular intervals.
▶ You must observe the system pressure instructions.

1.2.15 Avoid environmental damage caused by escaping coolant

The heat pump contains R410A coolant. The coolant must not be allowed to escape into the atmosphere. R410A is a fluorinated greenhouse gas covered by the Kyoto Protocol, with a GWP of 1725 (GWP = Global Warming Potential). If it escapes into the atmosphere, its impact is 1725 times stronger than the natural greenhouse gas CO Before the heat pump is disposed of, the coolant it contains must be completely drained into a suitable vessel so that it can

then be recycled or disposed of in accordance 3.2 User qualification

with the regulations.

• Ensure that only officially certified competent persons with appropriate protective equipment perform maintenance work or access the coolant circuit.
• The coolant in the heat pump must only recycled or disposed of by certified competent persons in accordance with the regulations.

This product can be used by children over eight years old and also by persons with limited physical, sensory or mental capabilities or insufficient experience and/or knowledge if they are supervised or have been provided with instructions on how to safely use the product, and they understand the risks resulting from using the product. Children must not play with the product. Cleaning and user maintenance work must not be carried out by children unless they are supervised.

1.3 Intended use

1.3.1 State-of-the-art technology

The Vaillant aroTHERM heat pump systems are constructed using state-of-the-art technology in accordance with the recognised safety rules and regulations. However, there is a risk of injury or death to the user or others, or damage to the product and other property, in the event of improper use or use for which is not intended.

1.3.3 Intended use

The Vaillant aroTHERM heat pump is designed for use as a heat generator for closed heating installations. Operation of the pump outside the application limits results in the heat pump being switched off by the internal control and safety devices.

1 Safety

1.3.4 Improper use

Any use which is not explicitly mentioned in the section "Intended use" is deemed improper.

Any other or additional use does not comply ^bas with the intended use. Any direct commercial or industrial use is also deemed to be improper.

1.4 CE label

CE labelling shows that, based on the type overview, the products comply with the basic requirements of the following directives.

1.3.5 Observing other applicable documents

Intended use also includes the observance of accompanying operating, installation and servicing instructions for Vaillant products as well as for other parts and components of the system.

1.3.6 Liability and secondary clauses

The manufacturer/supplier is not liable for any claims or damage resulting from improper use. The user alone bears the risk.

Caution.

Improper use of any kind is prohibited.

2 Notes on the documentation

2.1 Observing other applicable documents

▶ You must observe all operating instructions enclosed with the system components.

2.2 Storing documents

- Keep this manual and all other applicable documents safe for future use.

2.3 Applicability of the instructions

These instructions apply only for the following heat pumps, hereinafter referred to as the "product":

Type designation Art. no.
aroTHERM VWL 85/2 A 230 V 001001	1971
aroTHERM VWL 115/2 A 230 V 00100	1972

The product's article number is part of the serial number ( Page 14).

3 Product description

3 Product description

3.1 Design of the heat pump system

graph TD
    A["HVAC"] --> B["Refrigerator"]
    B --> C["Refrigeration tank"]
    C --> D["Refrigeration unit"]
    D --> E["Control unit"]
    E --> F["Refrigeration tank with heat exchanger"]
    F --> G["Refrigeration unit with control unit"]
    G --> H["Refrigeration tank with control unit"]
    H --> I["Refrigeration unit with control unit"]
    I --> J["Refrigeration tank with control unit"]
    J --> K["Refrigeration unit with control unit"]
    K --> L["Refrigeration tank with control unit"]
    L --> M["Refrigeration unit with control unit"]
    M --> N["Refrigeration tank with control unit"]
    N --> O["Refrigeration unit with control unit"]

The heat pump system consists of the following components:

Product description 3

• Heat pump
• VWZ AI heat pump control module
• Additional hydraulic components, if required
• System controller

The heat pump can be operated by the VWZ AI heat pump control module. The extended operation of the heat pump is carried out by the system controller.

3 Product description

3.2 Type designation and serial number

The type designation and serial number are on the identification plate (1).

3.3 Overview of the operator control elements of the VWZ AI heat pump control module

1 Fault clearance key
The fault clearance key is used to reset the heat
2 Operating buttons
3 Display

3.4 Digital Information and Analysis System (DIA)

The product is equipped with a Digital Information and Analysis System (DIA system). This system provides information on the operating status of the product and helps you to rectify faults.

The display lights up

• if you switch on the product or
• if you press a button in the DIA system while the product is switched on. At first, pressing this button does not trigger any other function.

The light goes out after one minute if you do not press any button.

DIA system operator control elements

4 Operation

1 Display of the daily energy yield
2 Display of the current configuration of the right-hand selection button
3 Left- and right-hand selection buttons
4 Minus and plus buttons

5 Access to the menu for additional information
6 Display of the current configuration of the left-hand selection button
7 Display of the symbols for the active operating status of the pumps

Heating mode:

• The symbol lights up permanently: Heat requirement is present
• The symbol is not visible: Heating mode is not active
• The symbol lights up permanently: Cooling requirement present
• The symbol is not visible: Cooling mode is not active

Cooling mode:

Current power:

- The display shows the current heat pump output

Fault: ⚠️ F.XXX

- Fault in the heat pump. Appears instead of the basic display; a plain text display explains the displayed fault code.

4 Operation

4.1 Operating concept

You can operate the product using the selection buttons and the plus/minus buttons.

Both selection buttons have a soft key function, i.e. their function can change.

By pressing

• You can cancel the change to a set value or the activation of an operating mode
• You can go one selection level higher in the menu.

By pressing

is You can confirm a set value or the activation of an operating mode
- You can go one selection level lower in the menu.

By pressing and at the same time:

- You can navigate to the menu.

By pressing or : +

• You can scroll through the entries in the menu
• You can increase or decrease a selected set value.

Adjustable values are always displayed as flashing.

You must always confirm a change to a value. Only then is the new setting saved. You can press to cancel a procedure. If you do not press any buttons for longer 15 minutes, the display returns to the basic display.

Operation 4

A highlighted object is indicated in the display as light text a dark background.

4.2 Basic display

As soon as a fault message is present, the basic displays switches to the fault message.

4.3 Operating levels

The product has two operating levels.

The operating level for the operator shows the most important information and offers set-up options which do not require any special prior knowledge.

tThe operating level for the competent person is reserved for the competent person only and is protected by a code. In this level, the competent person can set system-specific parameters.

The displays shows the basic display with the current status of the product. If you press a selection button, the activated function is displayed in the display.

You can switch back to the basic display by:

• Pressing and thus exiting the selection levels
• Not pressing any button for longer than 15 minutes.

4 Operation

4.4 Design of the menu

1 Scroll bar

(only appears if there are more list entries than can be shown at once on the display)

2 Current configuration of the right- and left-hand selection buttons (soft key function)

3 Selection level list entries

4 Name of the selection level

The menu is split into two selection levels.

Note

Path details at the start of a section specify how access this function, e.g. Menu → Information → Contact data.

4.4.1 Operator level overview

Setting level Unit
Menu → Yield indicator→
Heating
Cooling
Menu → Live Monitor
Heating:Compressor switch-off
Building circuitPressure
Target flow temp.
Current flow temp.
CompressorModulation
Air inlet temperature
Cooling output
Menu → Information
Contact details
Serial number
Device specific number
Operating hrs. Total
Operating hrs. Heating

Operation 4

Setting level Unit
Operating hrs. Cooling
Menu → Basic settings →
Language 15
Display contrast
Menu → Resets →
No sub-itemsAvailable

4.5 Live Monitor (status codes)

Menu → Live Monitor

You can use the Live Monitor to display the current status of the product.

4.6 Displaying the building circuit pressure

Menu → Live Monitor → Building circuit pressure

- You can display the current filling pressure of the heating installation in digital form.

4.7 Reading the operating statistics

Menu → Information → Heating op. hours

Menu → Information → Cooling op. hours

Menu → Information → Total operating hours

In each case, you can display the operating hours for the heating mode, the cooling mode and the overall operation.

4.8 Displaying contact data

Menu → Information → Contact details

If your competent person has entered their telephone number during the installation, you can read this data under Contact data.

4.9 Displaying the serial number and article number

Menu → Information → Serial number

• The product's serial number is displayed.
• The article number is found in the second line of the serial number.

4.10 Setting the display contrast

Menu → Basic settings → Display contrast

- You can use this function to adjust the display contrast to suit your needs.

5 Operation

4.11 Setting the language

If you want to set another language:

▶ Press and hold and at the same time.
▶ Also press the fault clearance key for a short time.
▶ Press and hold and until the display shows the language setting.
▶ Select the required language by pressing or+
▶ Press (OK) to confirm your selection.
▶ Once you have set the correct language, press (OK) again to confirm this.

5 Operation

5.1 Switching the product on/off

▶ Use a partition with a contact opening of at least 3 mm (e.g. fuses or power switches) to de-energise the product.

5.2 Activating frost protection

▶ To prevent the product from freezing, ensure that the product is switched on.

5.3 Setting the target feed temperature in heating mode

The actual target flow temperature is automatically determined by the system controller (you can find further information about this in the operating instructions for the system controller).

5.4 Setting a room thermostat or weather compensator

▶ Set the room thermostat or the weather compensator (1) and thermostatic radiator valves (2) as specified in the relevant instructions for these accessories.

Operation 5

5.5 Checks and maintenance carried out by the operator

The product switches off if the filling pressure in the heating installation falls below 0.05 MPa (0.5bar).

▶ Top up with water.

5.5.1 Cleaning the product

1. Switch the product off before you clean it.
2. Clean the product's casing with a damp cloth and a little soap. Never use scouring or cleaning agents which could damage the casing or the operator control elements.
3. Do not clean the product with a high-pressure cleaner.
4. At regular intervals, check that no branches or leaves have gathered around the product.

5.5.2 Checking the maintenance plan

Danger!

Risk of injury and risk of material damage due to neglected or incorrect maintenance and repairs.

Neglected or incorrect maintenance work or 5.6 repairs may lead to personal injury or damage to the product.

▶ Never attempt to carry out maintenance work or repairs on the product.

▶ Employ an authorised heating specialist company to complete such work. We recommend making a maintenance agreement.

1. Regular inspection/maintenance of your product by a competent person is a prerequisite for ensuring that the system is constantly ready and safe for operation, reliable and has a long service life.

Note

Failure to carry out maintenance and repair work, and non-compliance with the specified inspection, maintenance and replacement intervals, leads to a loss of potential guarantee claims. We recommend making a maintenance agreement with a competent person.

1. The maintenance intervals depend on the local conditions and the use of the product.

Have parts that are relevant to the function and safety replaced by a competent person.

5.6 Having the product temporarily decommissioned

If, during long periods of absence, the power supply to the dwelling and to the product is interrupted, have the heating system drained by your competent person or have it sufficiently protected against frost.

6 Troubleshooting

6 Troubleshooting

6.1 Reading the fault message

graph TD
    A["Fault 01/3"] --> B["42\nCoding resistor"]
    B --> C["Back"]
    B --> D["Delete"]

Fault messages have priority over all other displays and are shown instead of the basic display. If several faults occur at the same time, these are each displayed alternately for two seconds each.

▶ If your product displays a fault message, contact a competent person.
▶ To find out more information about the status of your product, call up the "Live Monitor" (→ Page 19).

6.2 Detecting and rectifying faults

This section shows all of the fault messages that can be rectified without seeking help from the competent person in order to start up the product again.

Remedy ( Page 23)

▶ If the product still does not function after the fault has been rectified, contact your competent person.

Fault Cause Remedy
The product no longer works. The power supply has been disconnected Ensure that there has not been a power cut and that the product is correctly connected to the power supply. When the power supply is re-established, the product automatically starts up. If a fault is still present, contact your competent person.
Noises (hissing, knocking, humming)	If the heating demand stops, this may lead to bubbling and whistling noises. These noises are caused by the coolant.When the product starts up or stops, this may lead to creaking noises. These noises are caused by the casing as it expands or contracts when the temperature changes.If the product is functioning, this may lead to humming noises. These noises are caused by the compressor when the product is in heating mode.
The product releases steam. In winter and during the thawing procedure, steam may escape from the product. (The heat of the product melts the ice that has formed.)
Other faults Consult your competent person.

7 Decommissioning

7 Decommissioning

7.1 Having the product permanently decommissioned

▶ Have a competent person permanently decommission the product.

If your heat pump system is marked with this symbol, it does not belong with your household waste at the end of its useful life.

the ▶ Instead, take the product to a collection point for recycling electrical and electronic devices.

8 Recycling and disposal

For more information on where to take your used electrical and electronic devices, contact your town or district authorities, or waste disposal company.

8.1 Disposing of the packaging

8.3 Arranging disposal of coolant

The competent person who installed your product is responsible for the disposal of the packaging. R410A.

8.2 Disposing of the product and accessories

Product

▶ Coolant must only be disposed of by qualified competent persons.
▶ Observe the general safety information.

Do not dispose of your product or any accessories as household waste.

▶ Ensure that your old unit and any accessories are disposed of properly.
▶ Observe all relevant regulations.

9 Guarantee and customer service

9.1 Guarantee

Vaillant provides a full parts and labour guarantee for this appliance for the duration as shown on the enclosed registration card which must be fully completed and returned within 30 days of installation. All appliances must be installed by a suitably competent person fully conversant and in accordance with all current regulations applicable to the appliance type installation. In the case of gas appliances the

Packaging

▶ Sort the rubbish into recyclable (carton, plastic, etc.) a non-recyclable parts (packaging straps, etc.).
▶ Recycle the product packaging according to all relevant regulations.

Guarantee and customer service

Gas Safety (Installation and Use) Regulations 1998, and the 9.2 Customer service

manufacturer's instructions. In the UK competent persons approved at the time by the Health and Safety Executive undertake the work in compliance with safe and satisfactory standards. Installers should also be fully conversant with To ensure efficient and reliable operation of your boiler it is recommended that regular servicing is carried out by your service provider:

and competent with all necessary electrical and building regulations that may apply to the installation.

Vaillant Applied System Sales

Vaillant Ltd.

In addition all unvented domestic hot water cylinders must Nottingham Road be installed by a competent person to the prevailing build-Belper ing regulations at the time of installation (G3). All appliances Serbyshire DE56 1JT

shall be fully commissioned in accordance with our installation manual and Benchmark commissioning check list (this United Kingdom

will be included within the installation manual). These must VaillantTraining: 08 45 601 88 85

be signed and given to the user for safe keeping during the E-mail: [e-mail]

hand over process. Installers should also at this time advise

the user of the annual servicing requirements and advise of appropriate service agreement. Vaillant After Sales Service: 08 70 850 30 72 (Mon-Fri 8:30 – 17:30)

Terms and conditions do apply to the guarantee, details of Technical Help: 08 44 693 31 33 (Mon-Fri 8:30 - 17:30) which can be found on the registration card included with Fax: [phone]

appliance. In order to qualify for guarantee after one year the E-mail: [e-mail] appliance must be serviced in accordance with our installa-

tion manual servicing instructions. The benchmark service history should be completed. Note - all costs associated with this service are excluded from this guarantee.

Failure to install and commission this appliance in compliance with the manufacturer's instructions will invalidate the guarantee (this does not affect the customer's statutory rights).

Index

Index

A

Article number 19

B

Basic display ....17

Building circuit pressure Displaying ....19

C

Care....21

Contact details....19

Controller Setting....20

D

Digital Information and Analysis System ......

Display.... 14 Basic display.... 17

Disposal....24

Documents 11

F

Fault: 22

Frost damage Heating installation ....7 Preventing....7

H

Hot water temperature Risk of scalding....5

|

Instructions Applicability....11

Intended use....9

L

Live Monitor....19

M

Maintenance plan Checking....21

Menu Design....18

0

Operating level Competent person ....17

4 Operator....17

Operator control elements....14

P

Product Cleaning....21

R

Recycling....24

S

Serial number 19

Setting the display contrast 19

Setting the language ....20

U

Unit status ....19

Use, intended 9

0020151761_00 26.06.2013

Vaillant Ltd

Nottingham Road ■ Belper ■ Derbyshire ■ DE56 1JT

Telephone [phone] Vaillant Service Solutions 080 70 606 07 77

[e-mail] 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.