Vaillant VRT 392 Fiche technique

For the heating engineer/for the user

Operating and Installation Manual

VRT 392

Room thermostat and hot water programmer VRT 392

For the user

Operating manual

VRT 392

Room thermostat

Contents

1 Notes on the documentation.........................2

1.1 Cylinder of the documents ...................................2

1.2 Symbols used ...........................................................2

1.3 Validity of the instructions ...................................2

2 Description of the device...............................3

2.1 Identification plate..................................................3

2.2 CE label......................................................................3

2.3 Intended use.............................................................3

3 Safety instructions and regulations ............4

3.1 Safety instruction....................................................4

3.2 Regulations...............................................................4

4 Assembly .........................................................4

4.1 Scope of delivery.....................................................4

4.2 Accessories...............................................................4

4.3 Installation location ................................................4

4.4 Wall-mounting ..........................................................5

5 Installation.......................................................5

6 Initial commissioning .....................................6

6.1 Installation assistant ..............................................6

6.2 Operation level for the installer ..........................6

6.3 Resetting the parameters to the

factory setting..........................................................7

6.4 Handing over the device to the user..................7

7 Service, Warranty ...........................................9

8 Recycling and disposal...................................9

9 Technical data .................................................9

Glossary ........................................................ Appendix

Operating Manual VRT 3924

Equipment properties

Application

The VRT 392 is a programmable room thermostat with

hot water programmer

Using the VRT 392 you can programme various room

temperatures — for different times of the day and for

different days of the week.

In automatic operation, the VRT 392 controls your

heating in accordance with these programmed times and

temperatures (see Fig 0.1).

The VRT 392 also has an in-built hot water programmer.

Fig. 0.1 Automatic operation of the heating: Examples of the

presets for the room temperatures for different times

of the day

The VRT 392 can also be used to control the following

accessories:

– Circulation pump for hot water preparation in

combination with a multi-function module VR 40

– Ventilation installation

– Conventional hot water cylinder

– Vaillant layer cylinder actoSTOR

– Commercially available 230 V components (e.g. valves,

cylinder thermostats)

The VRT 392 can be part of a new heating and hot water

system or it can be incorporated in existing heating

systems . The VRT 392 can only be used with Vaillant

boilers with eBus interface.

eBUS is a communications standard for data exchange

between the components in heating technology.

Product specifications

– eBUS interface

– Data connection with a Vaillant boiler via an eBUS line

– Illuminated graphic display

– Operation by two dials in accordance with the Vaillant

principle "Turn and Click“

– Compatible with the Vaillant diagnosis software

vrDIALOG 810/2 and with the Vaillant Internet

Communication System vrnetDIALOG, i.e. remote

diagnosis and remote setting

Equipment properties

04:00 16:0008:00 12:00 20:00

15 °

20 °

25 °

Room temperature

Time

Set back temperature

Period 1 Period 3Period 2

5Operating Manual VRT 392

1 Notes on the documentation

The following information is intended to help you

throughout the entire documentation. Further

documents apply in combination with this operating

manual.

We accept no liability for any damage caused by failure

to observe these instructions.

Other applicable documents:

– The installation instructions for the Vaillant room

temperature controller VRT 392 (Part 2 of this

document; for the heating engineer)

– The operating and installation instructions of your

heating system

– All instructions for the accessories

Glossary:

At the end of this document, in the appendix, you will

find– alphabetically sorted – the explanation of technical

terms and important functions.

1.1 Storage of the documents

Please store this operating manual and all related

documents in such a way that they are available

whenever required.

1.2 Symbols used

When using this appliance please observe the safety

instructions in this manual.

dDanger!

Immediate risk of serious injury or death!

eDanger!

Danger of death by electric shock!

HAttention!

Danger of burning and scalding!

aCaution!

Potentially dangerous situation for the product

and environment!

hNote!

Useful information and instructions

⇒ Symbol for a necessary task

1.3 Validity of the instructions

These operating instructions are exclusively applicable

to the equipment with the following part numbers.

00 2002 8509 VRT 392

The part number of your equipment can be obtained

from your installer.

1.4 CE label

The CE mark documents the fact that the Vaillant room

thermostat VRT 392 fulfils the fundamental

requirements of the guidelines on the subject.

2 Safety

The VRT 392 may only be installed by a suitably

qualified heating engineer. This engineer also assumes

responsibility for installing the appliance properly and

putting it into service for the first time.

HAttention!

Risk of being scalded by hot water!

At the draw-off points of the hot water there is

a danger of scalding at temperatures in excess

of 60 °C. Small children and elderly people can

be at danger even at lower temperatures.

Select the target temperature so that nobody is

at danger.

Attention!

Risk of being scalded by hot water!

If your heating engineer has activated the

legionella protection, the hot water at the draw-

off points can exceed 60 °C at certain times.

Ask your heating engineer, whether he has

activated the legionella protection, and if so, at

which day and at which time.

Notes on the documentation 1

Safety 2

Operating Manual VRT 3926

3 Instructions on operation

3.1 Intended use

The VRT 392 is a state-of-the-art device which has been

constructed in accordance with recognised safety

regulations.

However, in the event of improper use or use not as

intended, impairment of the equipment and other items

can arise.

The VRT 392 is designed to control a heating system

with or without a hot water system or hot

water circulation pump according to time and

temperature, in connection with a Vaillant boiler with an

eBus interface.

Operation with the following accessories is permitted:

– Circulation pump for hot water preparation in

combination with a multi-function module VR 40

– Ventilation installation

– Conventional hot water cylinder

– Vaillant layer cylinder actoSTOR

– Commercially available 230 V components (e.g. valves,

cylinder thermostats) in combination with the Control

Center VR 65

– 230 V cylinder thermostat in combination with the

relay box VR 41

Any other use or extended use is considered to be use

other than intended. The manufacturer or supplier is not

liable for any resulting damage. The user alone bears

any risk.

Intended use also includes observing the operating and

installation instructions and all other documents having

validity.

3.2 Ambient conditions

Please make sure:

– that the air in the room can circulate freely and

that the VRT 392 is not obscured by furniture, curtains

or other objects.

– that all the radiator valves in the room where the

VRT 392 is fitted are fully open.

3.3 Care

Clean the casing of the VRT 392 with a damp cloth.

Do not use any scouring or cleaning agents which could

damage the operating elements or the display.

3.4 Service, Warranty

Vaillant Service

To ensure regular servicing, it is strongly recommended

that arrangements are made for a Maintenance

Agreement.

Please contact Vaillant Service Solutions

(0870 6060 777) for further details.

Vaillant warranty

We only grant a Vaillant manufacturers warranty if a

suitably qualified engineer has installed the system in

accordance with Vaillant instructions.

The system user will be granted a warranty in

accordance with the Vaillant terms and conditions.

All requests for work during the guarantee period must

be made to Vaillant Service Solutions (0870 6060 777).

3.5 Recycling and disposal

Both your VRT 392 and its packaging are primarily made

of recyclable raw materials.

Appliance

Neither the VRT 392 or any of its accessories belong in

the household waste. Make sure the old appliance and

any accessories are disposed of properly.

Packaging

Please leave the disposal of the transport packaging to

the qualified servicing company which installed the

appliance.

7Operating Manual VRT 392

4 Operation

hNote!

The installer should explain the operation of the

VRT 392 after installation. This will prevent

inadvertent changes to the settings.

4.1 Overview operating and display front

Th. 12.01.06

11:46

Auto 19.0 °C

VRT 392

Fig. 4.1 Overview operating and display front

Key

1 Display

2 Operating element right-hand dial

3 Operating element left-hand dial

Fig. 4.1 shows the default display. It provides

the following information:

– the operating mode (automatic. manual, or off) of the

heating circuit

– the current room temperature

The default display is described in detail in

Chapter 4.3.3.

The function of the two dials is described in

Chapter 4.3.

Operation 4

Operating Manual VRT 3928

4.2 Overview of the display

The parameters and settings (operating values) of the

VRT 392 are shown on different screens.

The screens are sub-divided into:

– default display (Fig. 4.1)

– basic display (Fig. 4.2)

– display/input screens for certain parameters in the

user level

– display/input screens for operation and installation

specific parameters in the installer level

All screens are divided into three areas.

56.0 °C

Auto

> Select room temperature

21.0 °C

Th. 12.01.06

11:46

HC1

AutoDHW

Fig. 4.2 Overview displays (example basic display)

Key

1 Area for basic data, title of the screen or status and error

messages

2 Area for display and entry of parameters

3 Area for display and explanation

The basic data are:

– Weekday

– Date

– Time of the day

In the screens for specific parameters the title of the screen

appears instead of the basic data.

> Select room temperature

Th. 12.01.06

11:46

HC1

DHW 56.0 °C

21.0 °C

Auto

Auto

123

Fig. 4.3 Area for display and entry of parameters (example

basic display)

Key

1 Parameter name (only display)

2 Cursor



marks the scroll to a modifiable value

3 Input field for parameter values here: target temperature

4 Input field for parameter values here: Operating mode

4.3 Operating concept

The operation of the default display is described in

Chapter 4.3.3.

The operating concept described below applies to the

basic display (Fig 4.2) and to different screens in the

user level.

The two dials (Fig. 4.1 Items 2 and 3) function according

to the Vaillant principle "Turn and Click".

When turning the dials (clockwise or anti-clockwise),

they index positively with each step. Each index step

also moves the cursor one position forwards or

backwards in the display.

By clicking (pressing) you can highlight or accept

changes to a parameter.

Action Outcome

Left-hand dial

Turn Scroll to the next screen

Right-hand

dial

Turn Scroll to a field within a

screen (marked by the

cursor



)

Changing the parameter

Clicking

(pushing) Highlight for changing

Turn Change the parameter

value

Clicking

(pushing) Save the value

Table 4.1 Operating concept

4 Operation

9Operating Manual VRT 392

4.3.1 Showing different screens

By turning the left-hand dial you can page through the

individual screens of the display like a book.

Example:

You are now located in the basic display. To get to the

basic display see Chapter 4.3.3.

⇒Turn the left-hand dial clockwise by one notch.

In the screen 1 appears with the possible settings for

the basic data.

56.0 °C

Auto

> Select room temperature

21.0 °C

Th. 12.01.06

11:46

HC1

AutoDHW

Day of week We

12 : 00

> Set day of week



21 . 06 . 06

Basic data 1

Date

Time

> Select day of week



21.5 °C

HC1 2

Time programme

06 : 00 - 10 : 40

: - :

Auto

Summer/winter time changeover

Fig. 4.4 Display of different screens

4.3.2 Changing parameters

⇒Turn the right-hand dial to scroll through the

parameters within the screen.

The position is indicated by the cursor



(see Fig. 4.5).

If the parameter (e.g. a date with day, month, year)

consists of several elements, you can scroll between one

element and the next by turning the right-hand dial.

56.0 °C

Auto

> Select room temperature



Th. 12.01.06

11:46

HC1

AutoDHW

21.0 °C

56.0 °C

Auto

> Select operation mode



Th. 12.01.06

11:46

HC1

AutoDHW

21.0 °C

56.0 °C

Auto

> Select target hot water



Th. 12.01.06

11:46

HC1

AutoDHW

21.0 °C

Fig. 4.5 Scroll through various modifiable parameters

Operation 4

Operating Manual VRT 39210

⇒Click the right-hand dial.

The parameter marked with the cursor is



highlighted.

56.0 °C

Auto

> Select room temperature



Th. 12.01.06

11:46

HC1

AutoDHW

21.0 °C

Fig. 4.6 Highlighting a parameter

⇒Turn the right-hand dial to display the possible

values .

56.0 °C

Auto

> Select room temperature



Th. 12.01.06

11:46

HC1

AutoDHW

21.0 °C

56.0 °C

Auto

Th. 12.01.06

11:46

HC1

AutoDHW

21.5 °C

56.0 °C

Auto

Th. 12.01.06

11:46

HC1

AutoDHW

22.0 °C

> Select room temperature

Fig. 4.7 Changing the values of a parameter

⇒Click the right-hand dial.

The value is saved and is no longer highlighted.

4 Operation

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