Ebasto Ethermo top eco 20 p Operating instructions

Service Instructions

eThermo Top Eco 20 P | 30 P

English

Contents Webasto

2 9039398A_WSM_eThermo_Top_Eco_EN

Contents

1 Introduction .............................................................. 3

1.1 About this document ................................................3

1.2 Purpose of the document .........................................3

1.3 Using this document.................................................3

1.4 Use of symbols and highlighting ...............................3

1.5 Warranty and liability................................................3

1.6 Qualifications of installation personnel......................3

1.7 Spare parts ...............................................................3

1.8 Safety precautions ....................................................3

1.9 Statutory regulations governing installation ..............4

2 Information about the unit and external components

.................................................................................. 5

2.1 Overview ..................................................................5

2.2 Heater – general information ....................................6

2.3 12V wiring harness ..................................................6

2.3.1 Electrical connection of coolant pump and

vehicle fan................................................... 6

2.3.2 Vehicle battery (voltage stability) ................. 6

2.4 230V heater supply cable / extension cable..............6

2.5 External components ................................................6

2.5.1 Coolant pump ............................................. 6

2.5.2 Power cable................................................. 6

2.5.3 Fan relay...................................................... 6

3 Functional description ............................................... 7

4 Technical data ........................................................... 8

4.1 Dimensions...............................................................9

5 Malfunctions and troubleshooting .......................... 10

5.1 Cause of malfunctions ...........................................10

5.2 Table of causes of fault...........................................11

6 Function checks....................................................... 12

6.1 General information ...............................................12

6.2 Heater supply cable / extension cable......................12

6.3 Function check in the vehicle ..................................12

6.4 Activation of vehicle blower....................................12

6.4.1 Fan relay.................................................... 12

6.5 Checking coolant pump..........................................12

7 Servicing ................................................................. 13

7.1 Servicing ................................................................13

7.2 Working on the heater............................................13

7.3 Maintenance...........................................................13

7.3.1 Annual ...................................................... 13

8 Replacing the unit ................................................... 14

8.1 General information ...............................................14

8.2 Required tools ........................................................14

8.3 Removal .................................................................14

8.3.1 Preliminary Work ....................................... 14

8.3.2 Pinch off the coolant hoses.........................14

8.3.3 Release the hose clips.................................14

8.3.4 Removal .....................................................14

8.4 Installation...............................................................15

9 Packaging/storage and shipping ...............................16

9.1 General information ................................................16

9.2 Storage and transportation ......................................16

10 Wiring Diagram .........................................................17

10.1 Legend to wiring diagram........................................18

10.2 Legend for comments..............................................18

10.3 Pin assignments plug connection X1, 2-pin .............18

10.4 Pin assignments plug connection X2, 2-pin .............18

10.5 Pin assignments plug connection X9, 3-pin .............18

10.6 Cable colours ..........................................................18

Webasto Introduction | 1

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1 Introduction

1.1 About this document

This workshop manual is designed to assist trained personnel in

resolving application queries and other issues relating to the

eThermo Top Eco 20 P | 30 P.

NOTE

Do not open the heater.

If faulty always replace the complete heater.

1.2 Purpose of the document

This workshop manual is part of the product and contains all

the information required to resolve malfunctions of the eTh-

ermo Top Eco 20 P | 30 P.

1.3 Using this document

nRead and observe this workshop manual when determining

and carrying out repairs to the application or the replace-

ment of the eThermo Top Eco 20 P | 30 P.

nThe Installation Instructions and the Operating Instructions

and the important information and legal provisions con-

tained therein should always be read and observed.

1.4 Use of symbols and highlighting

DANGER

This signal word denotes a hazard with a high degree

of risk which, if not avoided, will lead to death or seri-

ous injury.

WARNING

This signal word denotes a hazard with a moderate de-

gree of risk which, if not avoided, may lead to minor or

moderate injury.

CAUTION

This signal word denotes a hazard with a low degree of

risk which, if not avoided, will lead to minor or moder-

ate injury.

NOTE

This signal word denotes a Special Technical Feature or

(if not observed) potential damage to the product.

Refers to separate documents which are enclosed or

can be requested from Webasto.

Symbol Explanation

Requirements for the following necessary ac-

tion

Necessary action

1.5 Warranty and liability

Webasto shall not assume liability for defects or damage that

are the result of the installation and operating instructions being

disregarded. This liability exclusion particularly applies for:

nmechanical damage to the equipment

ninstallation by untrained personnel

nconversion of the unit without permission from Webasto

nimproper use

nUse of non-genuine replacement units

nRepairs or device replacement not carried out by a Webasto

service workshop

nUse of unsuitable accessories

nInsufficient coolant supply before, during and after heating

mode

1.6 Qualifications of installation

personnel

The installation personnel must have the following qualifica-

tions:

nSuccessful completion of Webasto training.

nCorresponding qualification for working on technical sys-

tems.

nInstallation and operating instructions as well as the notes

it contains must be observed.

DANGER

Any work on the eThermo Top Eco 20 P | 30 P must

only be carried out by electricians qualified to carry out

electrotechnical work on high-voltage systems in

vehicles.

1.7 Spare parts

There are no spare parts for the eThermo Top Eco 20 P | 30 P

heater; the unit can only be replaced. The components, such as

the coolant pump, are available as single parts.

You can find original spare parts:

nIn the Webasto spare parts catalogue

nIn the dealer portal http://dealers.webasto.com

1.8 Safety precautions

DANGER

To avoid electric shocks, guard against electric shocks,

risk of fire and risk of damage caused by hot, moving or

sharp objects.

uDo not adapt the heater supply cables or shorten

or lengthen them yourself.

DANGER

Before working on the heater: disconnect the power

supply to the heater, the coolant pump and the vehicle

fan.

uDisconnect the negative terminal of the vehicle bat-

tery

uRemove the power cable

DANGER

To guard against electric shocks, the heater may only

be connected when the 230V socket outlet with earth-

ing contact is protected with an RCD switch (circuit

breaker) with a rated residual current of max. 30mA. If

you have any questions, please contact an authorized

electrician.

The heater may only be connected to power grids that

are protected with a minimum current and designed ac-

cordingly (10A for eThermo Top Eco 20P, 16A for

eThermo Top Eco 30 P).

The device should be properly connected to a

230V/50Hz socket outlet with earthing contact. This

should also be checked against the data on the type la-

bel.

1 | Introduction Webasto

4 / 19 9039398A_WSM_eThermo_Top_Eco_EN

DANGER

If the 230V heater supply cable(s) mounted in the

vehicle is (are) accidentally overextended, you MUST

check whether the 230V heater supply cable(s), the

connector or other parts of the vehicle heating system

have been damaged. A damaged heater supply cable

MUST be replaced by a Webasto service workshop.

DANGER

Before each use, check the power cable and 230V

socket outlet with earthing contact for defects. If you

find any defects, you must not operate the heater until

the defects have been fixed by a Webasto service work-

shop.

Before starting up the vehicle, the power cable must be

removed from the 230V socket outlet with earthing

contact and from the vehicle. Do not use the power

cable to pull the connector out of the 230V socket out-

let with earthing contact; always use the connector it-

self.

The power cable must not be connected to the 230V

power grid while coiled.

DANGER

If maintenance is not carried out, there will be insuffi-

cient or no protection from electric shocks, and this can

result in corresponding injuries. In the event of non-

compliance, Webasto is released from any liability, inso-

far as this is legally permissible.

NOTE

Observe data on type label.

NOTE

Maximum continuous operating duration of the heater:

120min.

NOTE

Make sure that the female connector of the power

cable can be plugged in without difficulty.

NOTE

Protect the connector and power cable from damage.

NOTE

At low temperatures the power cable may feel a little

more rigid; this is a characteristic of the product.

NOTE

Function of timer:

A commercially available timer switch can be used for

this purpose (230V). For outdoor use, the timer must

have protection class IP44.

If a timer switch is used, ensure there is sufficient

switching power (10A / 16A).

eThermo Top Eco 20 P : min. 10 A

eThermo Top Eco 30 P : min. 16 A

1.9 Statutory regulations governing

installation

This document is a supplement to the Operating and Installation

Instructions, which are available on the Webasto dealer portal

at https://dealers.webasto.com. The regulations of these

guidelines are binding in the scope of the Directive 70/156/EEC

and/or 2007/46/EC (for new vehicle models from 29/04/2009)

and should also be observed in countries in which there are no

special regulations. Failure to follow the installation instructions

will result in the invalidation of the type approval for the heater

and therefore invalidation of the general homologation of the

vehicle. For vehicles with an EU type approval, an entry is not

required in accordance with § 19 section 4 of appendix VIII b of

German StVZO. Country-specific registration regulations must

be complied with. The noise emissions from the Webasto eTh-

ermo Top Eco 20 P | 30 P heater are below the threshold spe-

cified in section 1.7.4.2. u) of the Machinery Directive 2006/42/

EC.

WEEE directive

This product must not be disposed of with normal

household rubbish. Dispose of this product accord-

ing to the applicable rules and regulations. Inform-

ation about proper disposal is provided by the mu-

nicipal authorities, the responsible household

waste recycling centre and/or your local distribu-

tion partner.

Webasto Information about the unit and external components | 2

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2 Information about the unit and external components

2.1 Overview

1 2 3 4 5 6

Fig.1: Overview

Relay bracket eThermo Top Eco 20 P | 30 P Coolant inlet

Vehicle blower relay X1 (connection for coolant pump and vehicle

fan relay)

Coolant outlet

Installation cable X2 (voltage compensation for battery and

fuses)

Earth connection 12V

Earth connection 230 V Coolant pump connector 12V wiring harness

Connector bracket Coolant pump adapter cable Fuse holder

Power cable Coolant pump Vehicle fan wiring harness

2 | Information about the unit and external components Webasto

6 / 19 9039398A_WSM_eThermo_Top_Eco_EN

2.2 Heater – general information

The eThermo Top Eco 20 P | 30 P works together with the

vehicle heating system to preheat the cab and engine in parking

heating mode.

The water heater eThermo Top Eco 20 P | 30 P is available in

two variants:

neThermo Top Eco 20 P with 2kW heating capacity

neThermo Top Eco 30 P with 3kW heating capacity

The eThermo Top Eco 20 P | 30 P operates independently from

the vehicle engine.

The heater is integrated in the cooling system and the electrical

system of the vehicle.

A power pack is built into the heater to supply the coolant

pump and assist the vehicle battery.

2.3 12V wiring harness

See also Fig. 12.

Webasto Functional description | 3

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3 Functional description

The eThermo Top Eco 20 P or the eThermo Top Eco 30 P is an

electric water heater with coolant temperature control and in-

tegrated power pack.

The necessary, continuous coolant flow is provided by a coolant

pump. The heater is connected to the 220V to 230V domestic

power grid.

Heating mode starts as soon as the power supply is established.

This happens as soon as the power cable connected to the

vehicle connection is inserted into the socket.

To switch off, the power cable is first removed from the socket

outlet with earthing contact and then from the vehicle connec-

tion.

Once the heater is activated, heating mode is controlled auto-

matically as a function of the temperature. To generate heat,

the heating coil in the heater housing is heated by electrical

means (immersion heater principle).

Standard temperature range (standard values) in °C

nSwitches off at T > 70°C

nSwitches back on at T < 55°C

The coolant temperature is monitored by the sensor system in

order to protect the heater from overheating.

4 | Technical data Webasto

8 / 19 9039398A_WSM_eThermo_Top_Eco_EN

4 Technical data

Heater eThermo Top Eco 20 P eThermo Top Eco 30 P

Design Water heater (electrical operation)

Power connection [V] (50Hz) 220 - 230

Heater output (kW) 2 3

Operating voltage [V] (50Hz) 220 - 230

Output voltage [V] 12.0 - 14.0

Rated power consumption over control range [kW] 2 3

Permissible ambient temperature (operation) [°C] –40 to +80

Permissible ambient temperature (storage) [°C] –40 to +120

Permissible working pressure [bar] < 2.5

Capacity of the heat exchanger [I] 0.25

Heater dimensions [mm] 181x133x91

Heater weight, empty [kg] 1.4

IP class Heater IP 5K4K, IPX9K

Coolant pump (12 V)

Volume flow against 0.14bar [l/h] 450

Rated voltage [V] 12

Operating voltage range [V] 10.5 -17

Rated power consumption [W] 14

Dimensions of coolant pump (length) [mm] 109

Diameter Ø [mm] 48.5

Weight [kg] 0.3

NOTE

The technical data apply under following conditions:

Rated voltage: 12V / 230V

Air pressure: 1013 hPa

Relative humidity: 50%,

Ambient temperature: +20 °C

Geodetic height: 0 m above sea level

The standard tolerances of ±10 % for heaters shall apply if no limits are specified.

Webasto Technical data | 4

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4.1 Dimensions

181

133

Fig.3: side

133

Fig.4: Front

5 | Malfunctions and troubleshooting Webasto

10 / 19 9039398A_WSM_eThermo_Top_Eco_EN

5 Malfunctions and troubleshooting

5.1 Cause of malfunctions

A malfunction is caused when there is one or more faults occur.

Possible faults are:

nOvervoltage / Undervoltage

nmalfunctions of all components, e.g. due to short-circuit or

break,

noverheating of heater,

nIncorrect installation position of the heater, see Fig. 5

133

Fig.5: Check installation position

nIncorrect installation of the coolant pump, see

„chapter2.5.1.

Webasto Malfunctions and troubleshooting | 5

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5.2 Table of causes of fault

Symptom Possible cause Corrective measures

Heater not responding, compon-

ent (coolant pump, vehicle fan)

not starting up.

n230V power supply not

connected

n230V cable connection not

present

nHeater faulty

nWiring harness faulty

nFuse blown.

n230V power supply – check that the power cable is

connected correctly and supplied by the 230V domestic

power grid; check domestic fuses if necessary.

n230V cable connection – check cable and connections

nHeater – check wiring connections, replace heater if ne-

cessary

nWiring harness – check connections, check fuse and re-

place if necessary.

Coolant pump not running, heater

and vehicle fan working.

nCoolant pump defective

nWiring harness faulty

nFuse blown.

nCoolant pump – check wiring connection, check opera-

tion and replace if necessary

nHeater – check wiring connections, replace heater if ne-

cessary

nWiring harness – check connections, check fuse and re-

place if necessary.

Coolant pump and vehicle fan not

starting up, heater heats up.

n230V supply voltage too

low

nWiring harness faulty

nFuse blown

nHeater faulty

n230V power supply – check that the power cable is

connected correctly

n230V cable connection – check cable and connections

nHeater – check wiring connections, replace heater if ne-

cessary

nWiring harness – check connections, check fuse and re-

place if necessary.

Vehicle fan not running, heater

and coolant pump working.

nWiring harness faulty

nFuse blown

nWiring harness – check connections

nCheck fuse and replace if necessary.

Heater not responding, all com-

ponents (coolant pump, vehicle

fan) running.

nHeater faulty

nFuse blown.

nCheck fuse and replace if necessary.

nCheck heater – replace heater if necessary

Heater not starting, coolant pump

and vehicle fan starting up briefly.

Charge state of vehicle battery

very low.

nCharge battery

nSelect lower fan speed.

6 | Function checks Webasto

12 / 19 9039398A_WSM_eThermo_Top_Eco_EN

6 Function checks

6.1 General information

This section describes the checks and settings carried out on the

heater and its components in installed and uninstalled state.

6.2 Heater supply cable / extension

cable

nCheck earth connection of installation cable.

nCheck installation cable connections; insert again securely

or replace installation cable, as necessary.

nCheck extension cable connections; insert again securely or

replace extension cable, as necessary.

6.3 Function check in the vehicle

Check the following points:

1. Set the vehicle fan:

– Set the fan speed of the vehicle fan (see vehicle owner’s

operating instructions).

2. Check the fresh air inlet:

– This should be continuous.

– This must be free of foreign objects (snow, leaves etc.)

(replace pollen and dust filter if necessary).

3. Check coolant circuit:

– Bleed in accordance with vehicle manufacturer's spe-

cifications.

4. Switch on the eThermo Top Eco 20 P | 30 P

– The coolant pump should run. This can be checked by

listening.

– The vehicle fan is generally activated by the eThermo

Top Eco 20 P | 30 P after the heater is switched on.

5. Check heating action:

– Heater is switched on and heats up

– Check heating action at the outflow nozzles of the

vehicle fan (depending on outside temperature, approx.

20 minutes after switching on).

6.4 Activation of vehicle blower

Check wiring of vehicle fan for damage, break and short-circuit,

see „chapter10.

uCheck fuse

uCheck vehicle fan relay

uCheck switch signal at the relay, ground and voltage (aud-

ible)

NOTE

If there is a malfunction of the vehicle fan, please refer

to the vehicle manual.

6.4.1 Fan relay

Check connections to the extension cable and installation cable.

Replace cable or fan relay if necessary.

6.5 Checking coolant pump

uCheck coolant temperature.

uFunction check (listen for operation).

uCheck cable connection and installation position.

Webasto Servicing | 7

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7 Servicing

7.1 Servicing

This section describes the servicing jobs that can be carried out

on the heater and its components when installed.

To maintain the functional reliability of the heater, the specified

servicing jobs should be carried out before or after each heating

period.

7.2 Working on the heater

DANGER

Before working on the heater: disconnect the power

supply to the heater, the coolant pump and the vehicle

fan.

uDisconnect the negative terminal of the vehicle bat-

tery

uRemove the power cable

DANGER

To avoid electric shocks, guard against electric shocks,

risk of fire and risk of damage caused by hot, moving or

sharp objects.

uDo not adapt the heater supply cables or shorten

or lengthen them yourself.

NOTE

uCollect the coolant running out of the system in a

suitable container.

uBlock or disconnect coolant hoses.

DANGER

To avoid electric shocks and guard against electric

shocks and damage to people or objects

uIt is not permitted to repair the heater. If faulty, the

entire heater must be replaced.

Once the heater and all coolant-carrying components have been

installed, the entire coolant system should be filled, bled and

checked for leaks at the system pressure as specified by the

vehicle manufacturer (see Technical Data). Refer to the general

installation instructions and the vehicle-specific installation in-

structions for repairs that require the heater to be installed in a

different position.

7.3 Maintenance

7.3.1 Annual

NOTE

Check connector and power cable for damage.

uProtect the contact pins of the integrated connector (in the

vehicle) against corrosion. Use a spray that is approved for

electrical contacts.

uCheck the heater supply cables for damage.

uReplace damaged parts.

uCheck the following points:

nCheck the electrical connections for contact corrosion and

firm seating.

nCover for integrated connector

nPower cable

n12V wiring harness

n12V supply cable to the coolant pump

n12V supply cable to the vehicle fan

nCheck coolant system for leaks (cracks in the coolant hose,

pressure test if necessary)

After testing:

uStart up the heater

Check the following points:

nCoolant pump is running

nCheck coolant system for leaks

nVehicle fan is running

nCoolant system heats up

nVehicle interior heats up

8 | Replacing the unit Webasto

14 / 19 9039398A_WSM_eThermo_Top_Eco_EN

8 Replacing the unit

8.1 General information

NOTE

It is not permitted to repair the heater. If faulty,

the entire heater must be replaced.

8.2 Required tools

Tool description Description Amount

Coolant hose-clip

pliers

Coolant hose pinch-

off pliers

Water pump pliers 1

Socket wrench in-

sert TORX® E10

Jaw spanner size 3 1

- Ratchet with exten-

sion

8.3 Removal

8.3.1 Preliminary Work

NOTE

eThermo Top Eco 20 P | 30 P must have cover caps on

the coolant connection pieces. If the caps are not

present, seal off the coolant connection pieces. Coolant

must not leak out during installation and removal.

üBefore removal, make sure there is sufficient space to re-

move and reinstall the eThermo Top Eco 20 P | 30 P

without damage.

üThe coolant system must not be pressurised

uIf necessary, remove additional parts so that the heater can

be removed and reinstalled safely

uOpen the vehicle coolant expansion tank

8.3.2 Pinch off the coolant hoses

NOTE

The coolant pump is not self-priming. The coolant

pump must be filled with coolant before putting into

operation.

uPosition the coolant hose pinch-off pliers

uTighten the pinch-off pliers so that coolant cannot escape

and there is space to remove the eThermo Top Eco 20 P | 30

8.3.3 Release the hose clips

Fig.6: Position the coolant hose-clip pliers

Fig.7: Remove the hose clip from the flange

uPosition the coolant hose-clip pliers on the coolant hose

uTighten the clip pliers

uPull the hose clip from the flange

uRemove the clip pliers

uCollect any coolant that runs out in a suitable container

8.3.4 Removal

133

Fig.8: eThermo Top Eco 20 P | 30 PDetach the connector

Webasto Replacing the unit | 8

9039398A_WSM_eThermo_Top_Eco_EN 15 / 19

X2 X1

Fig.9: Reverse of eThermo Top Eco 20 P | 30 P connector

Fig.10: Bracket for eThermo Top Eco 20 P | 30 P (example)

133

Fig.11: eThermo Top Eco 20 P | 30 P removal

uRemove 230V heater supply cable lock on the heater

uPull off the 230V heater supply cable

uPull off the 12V connections

uRemove the bracket screws

uPull off the coolant hoses.

uCollect coolant in a suitable container.

uRemove the eThermo Top Eco 20 P | 30 P.

uCompletely drain the eThermo Top Eco 20 P | 30 P.

uAttach protective caps to the coolant inlet and coolant out-

let.

8.4 Installation

Installation is in the reverse order to removal.

Specific instructions are provided for installation and removal.

9 | Packaging/storage and shipping Webasto

16 / 19 9039398A_WSM_eThermo_Top_Eco_EN

9 Packaging/storage and shipping

9.1 General information

NOTE

The temperatures during transportation and storage

must not drop below or exceed the ambient temperat-

ures defined in the technical data.

See Technical data.

The heater and/or its external components that are being sent

to Webasto for testing or repair must be cleaned and packaged

in such a way that they are protected from mechanical damage,

soiling and environmental influences during handling, transport-

ation and storage.

9.2 Storage and transportation

Recommendations for:

nSending in the heater:

uThe heater must be completely empty.

nPackaging and shipping:

uMake sure that the remaining coolant cannot leak out.

Close off the coolant connection pieces with dummy plugs.

nStorage and packaging:

– The heater can be stored in any position.

– Cover the heater and protect the heater against dust,

dirt and moisture.

– Do not store the heater with chemicals or vapours, e.g.

fuels, battery fluids or brake fluids.

– Dirt, water or chemicals must not get into the heater

through the openings, see above.

– The electrical contacts must be protected from mechan-

ical damage.

– Always store the heater in the original or similar pack-

aging in a closed room.

nTransporting the heater:

The heater can be transported in any position in suitable pack-

aging.

nRemoving the delivery packaging:

uGrasp the heater suitably at the heat exchanger (aluminium

and steel parts) and remove it.

The type label and the surface of the heater should be protec-

ted from damage by placing suitable material under it (e.g.

cardboard).

Webasto Wiring Diagram | 10

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10 Wiring Diagram

9035848A05

Fig.12: Wiring DiagrameThermo Top Eco 20 P | 30 P

10 | Wiring Diagram Webasto

18 / 19 9039398A_WSM_eThermo_Top_Eco_EN

10.1 Legend to wiring diagram

No. Description Remarks

A1 Heater e Thermo Top Eco

A2 Control unit Power pack

A3 Control unit Fan controller

A6 Relay socket with fuses

A7 Gateway LIN

PWM

Fan controller

B1 Thermostat Control thermostat

B2 Thermostat Overheating protection

F1 Fuse 25A Blade fuse DIN 72581-3

F2 Fuse 5 A Blade fuse DIN 72581-3

F3 Fuse 3A Blade fuse DIN 72581-3

F4 Fuse 16A

F5 Fuse 25A Blade fuse DIN 72581-3

F6 Fuse 1A Blade fuse DIN 72581-3

FI Earth leakage cir-

cuit breaker

K1 Relay Vehicle blower

M1 Motor Circulation pump

M2 Motor Vehicle blower

R1 Tubular heating

element

R2 Ballast resistor Current limitation

S1 Switch Vehicle blower

S2 Switch Vehicle blower

V1 Diode

X1 2-pin plug con-

nection

To Item A1

X2 2-pin plug con-

nection

To Item A1

X3 3-pin plug con-

nection

To Item M1

X6 3-pin plug con-

nection

Connector with hinged lid

X9 3-pin plug con-

nection

To Item A1

X11 4-pin plug con-

nection

To Item A6

X12 4-pin plug con-

nection

To Item A6

0000015563A7

10.2 Legend for comments

No. Description

Positive signal for activation of vehicle fan

Fuse for vehicle blower (fuse present in vehicle)

Air-conditioning control unit

10.3 Pin assignments plug connection

X1, 2-pin

No. Description

1 Circulating pump positive

2 Circulating pump negative

10.4 Pin assignments plug connection

X2, 2-pin

No. Description

1 Battery plus (terminal 30)

2 Battery minus (terminal 31)

10.5 Pin assignments plug connection

X9, 3-pin

No. Description

1 Neutral conductor N

2 Protective earth conductor PE

3 Outer conductor L

10.6 Cable colours

Abbreviation Colour Abbreviation Colour

bl blue rt red

br brown sw black

ge yellow vi violet

gr grey ws white

or orange

These are the original instructions. The English language is binding.

You can request your language if it is missing. The telephone number of each country can be found in the Webasto ser-

vice centre leaflet or the website of the respective Webasto representative of your country.

www.webasto.com

Webasto Thermo & Comfort SE

Postfach 1410

82199 Gilching

Germany

Company address:

Friedrichshafener Str. 9

82205 Gilching

Germany

Technical Extranet: https://dealers.webasto.com

Only within Germany

Tel: 0395 5592 444

Mail: [email protected]

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