Webasto Cool Top 140 RT-C, Cool Top 110 RT-C, Cool Top 220 RT-C, Cool Top 250 RT-C, Cool Top 300 RT-C Operating Instructions

Operating Instructions

Air Conditioning
Cool Top 110 | 140 | 190 | 220 | 250 | 300 | 360 RT-C

English
Deutsch Bedienungsanweisung
Français Notice d’utilisation
Italiano Istruzioni per l’uso
Español Instrucciones de uso

°C

SP

A/C

M

Cool Top

2

Content

1 About this document 3

1.1 Purpose of the document 3

1.2 Using this document 3

1.3 Use of symbols and highlighting 3

1.4 Warranty and liability 3

2 Safety 3

2.1 General safety 3

2.2 Intended use 3

3 Operation 4

3.1 Control element 4

3.2 Buttons 4

3.3 Display symbols 4

3.4 Switch system ON 4

3.5 Switch system OFF 4

3.6 Temperature set during operation 4

3.7 Ventilation speed regulation 4

3.8 Recirculated or fresh air mode 5

4 User menu settings 5

4.1 Set temperature unit (°C / °F) 5

4.2 Adjust display back-light 5

5 Error codes 5

6 Technical data 5

7 Technical support and customer service 6

8 Disposal 6

9 Maintenance 6

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3

1 About this document

1.1 Purpose of the document

The operating instructions are part of the product and provides
the user with information on the safe operation of the unit.

1.2 Using this document

X Read these operating instructions before operating the unit.

X Keep these operating instructions ready to hand.

X Hand these operating instructions on to the following owner or

user of the unit.

1.3 Use of symbols and highlighting

Explanation



Action to be taken



Requirements for the following necessary action

Note on a special technical feature

Separate information is available

Possibility on property damage

Possibility on a severe or mortal injury

1.4 Warranty and liability

Webasto shall not assume liability for defects or damage that are
the result that the installation and operating instructions as well as
the instructions contained therein being disregarded.

This liability exclusion particularly applies for:

■

improper use

■

repairs not carried out by a Webasto service workshop

■

use of non-genuine parts

■

conversion of the unit without permission from Webasto

■

mechanical damage to the equipment

■

failure to comply with inspection and maintenance instructions

2 Safety

2.1 General safety

Please note that the configuration of the insulation/cooling affects
the storage capacity of the vehicle. When making use of the maxi­mum storage capacity and the seats, also comply with the permis­sible axle load.

2.2 Intended use

The system is designed for cooling the passengers compartment
of commercial vehicles while driving.

ATTENTION
Misuse as a result of failure to comply with the
operating instructions

Result: damage to the A/C system

X Follow the operating instructions.

The performance values of your application are closely
related to ambient conditions, vehicle insulation, etc.
The actual temperature may therefore deviate from the
set value.

The A/C system only operates with the vehicle engine
running.

In the case of vehicles fitted with automatic start-stop
control, the function must be switched off while ope­rating the A/C system. For information on the control
and function of the automatic start-stop control, please
read the operating instructions for your vehicle.

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3 Operation

3.1 Control element

°C

SP

A/C

M

Fig. 01: Display

3.2 Buttons

A/C Manual cooling ON or OFF

Start A/C in Auto mode

Recirculated air mode ON / OFF

Up

■

Increase values

Down

■

Decrease values

On/Off

■

Switches the A/C system ON / OFF

3.3 Display symbols

Symbol Description

Cooling ON and compressor OFF

Cooling and compressor ON

A/C running in automatic mode

A

Ventilation runs in automatic speed control

M

Ventilation runs in manual speed control

Fresh air closed

Fresh air opened

°C / °F

Celsius / Fahrenheit

SP Set-point

!

Warning

Tbl. 01: Display symbols

3.4 Switch system ON

3

Screen in OFF mode

Press "On/Off" button

–

The compressor and the fan will
start up.

3.5 Switch system OFF

During a short vehicle stoppage, e.g. during loading / unloading,
you do not need to switch the system off using the control ele­ment. The system will start up automatically the next time you
start the engine.

3

Screen in ON mode

Press "On/Off" button

°C

SP

A/C

A

3.6 Temperature set during operation

3

System is switched ON

X Press button “Auto mode” to switch

between temperature setting and
Fan speed regulation.

°C

SP

A

A/C

X Press button “Up” to increase the

temperature value

X Press button “Down” to decrease the

temperature value

°C

SP

A

A/C

The temperature value is stored in the control element.

The temperature range is limited between 18°C and 28°C

The display shows:

■

“Lo” when temperature is set lower than 18°C

–

The A/C system runs at maximum cooling capacity

■

“Hi” when temperature is set higher than 28°C

–

The A/C runs at maximum heating capacity (Only if heating kit
is installed)

3.7 Ventilation speed regulation

X Press button “Auto mode” to switch

between temperature setting and
ventilation speed regulation.*

°C

SP

A

A/C

X Press button “Up” to increase the

ventilation speed

X Press button “Down” to decrease the

ventilation speed

°C

SP

A/C

M

* Ventilation in manual mode: The ventilation speed is fixed.

* Ventilation in auto mode: The ventilation speed depends on the
difference between temperature setting and the actual measured
temperature.

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3.8 Recirculated or fresh air mode

Function is only available on systems with fresh air kit
installed.

Fresh air mode is optional. Contact Webasto.

Air is drawn in from the outside (fresh air mode) or recirculated in­side (recirculated air mode).

X Press button “Recirculated air mode”

to switch between fresh air and re­circulated air.

–

Fresh air mode selected

°C

SP

A/C

A

–

Recirculated air mode selected

°C

SP

A/C

A

4 User menu settings

The user can adjust the following settings

■

Temperature unit (°C / °F)

■

Display backlight

4.1 Set temperature unit (°C / °F)

+

X Press both for 3 sec

Set

or

X Press until display shows “Tum”

X Press “Auto mode” to enter

“Tum”

or

X Press to switch between Celsius

and Fahrenheit

°C

Set

°F

Set

X Press “Auto mode” to save selection

or

X Press until display shows “out”

X Press “Auto mode” to leave the user menu

4.2 Adjust display back-light

+

X Press both for 3 sec

Set

or

X Press until display shows “Dim”

X Press to enter “Dim”

or

X Press to increase or decrease the display

back-light (0 - 10)

X Press “Auto mode” to save selection

or

X Press until display shows “out”

X Press “Auto mode” to leave the user menu

5 Error codes

If an error occurs then a warning code is visible
in the screen.

The warning symbol flashes for 3 seconds during
30 seconds

!

A/C

A

Error
code

Description Troubleshooting

30 Warning for overpres-

sure

32 Warning for underpres-

sure

100 Short circuit on one of

the digital outputs

Contact Webasto

118 Over voltage Contact Webasto
120 Water valve error Check Water Valve Connec-

tion

125 Short circuit with sen-

sor.

Check treated external tem­perature sensor connection

127 Short circuit with sen-

sor

Check internal temperature
sensor connection

129 Short circuit with sen-

sor

Check external temperature
sensor connection

130 Short circuit with sen-

sor

Check In-cabin-aux air tem­perature sensor connection

132 Short circuit with sen-

sor

Check low pressure trans­ducer connection

133 Short circuit with sen-

sor

Check high pressure trans­ducer connection

143 Broken connection with

sensor

Check treated external tem­perature sensor connection

145 Broken connection with

sensor

Check internal temperature
sensor connection

147 Broken connection with

sensor

Check external temperature
sensor connection

148 Broken connection with

sensor

Check In-cabin-aux air tem­perature sensor connection

150 Broken connection with

sensor

Check low pressure trans­ducer connection

151 Broken connection with

sensor

Check high pressure trans-

ducer connection
162 Battery overvoltage Check battery
163 Battery undervoltage Check battery
164 Control element broken Replace control element

6 Technical data

Description Value

Operating voltage range [V] 12-24

Max. output [mA] 500

Output short circuit protection Protected

Polarity reverse protection Protected

Operating temperature range [°C] -40 to +80

Temperature sensor NTC 10 kΩ @ 25°C

Protection IEC-60529 IP54

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7 Technical support and customer service

Do you have any technical questions or problem with the device?

National phone numbers of our representatives are provided on the following website: www.webasto.com.

8 Disposal

When you eventually decommission the system, please dispose of the individual components properly at a recycling centre

9 Maintenance

Component

Item Possible

reason

Period

5,000 km 35,000 km Annual or

100,000 km

Compressor

Compressor belt Wear Change

Belt tension (it is important that the belt is al­lowed to cool before re- tensioning)

Loose tension Check/Repair Check/Repair

Idle pulley Noise/Blocked Change

Automatic belt tightener (if present) Noise/Blocked Change

Tightening bolts Loose fastening Check/Repair

Compressor Noise/Blocked Check/Repair

Compressor pulley Clutch engagement Check/Repair

Evaporator and Condenser

Drier filter Poor efficiency Change

Condenser fin Dirty/Leakage Check/Repair

Evaporator fin Dirty/Leakage Check/Repair

Condensation drain water Water inside vehicle Check/Repair

Centrifugal blower or axial fan Noise/Blocked Check/Repair

Others

Internal temperature Poor A/C efficiency Check/Repair

A/C system pressure test Poor A/C efficiency Check/Repair

Integrity of wiring connections No work or intermit-

tent operation

Check/Repair

Status of refrigerant pipes and fittings A/C systems empty

Poor A/C efficiency

Check/Repair

Refrigerant R134a charge A/C systems empty

Poor A/C efficiency

Refill

Oil compressor Oil removed during

charging of the refri­gerant

Refill

Tightening control Blocked Check/Repair

www.webasto.com

Webasto Thermo & Comfort SE
Postfach 1410
82199 Gilching
Germany

Company Address:
Friedrichshafener Str. 9
82205 Gilching
Germany

Internet: www.webasto.com

Ident No. 6241445B • 09/17 •Errors and omissions excepted •© Webasto Thermo & Comfort SE 2017

In multilingual versions the English language is binding. You can request your language if it is missing.
The telephone number of the respective country can be obtained from the Webasto service point flyer or the homepage of your respective Webasto
country representative.

Bei mehrsprachiger Ausführung ist Englisch verbindlich. Sollten Sprachen fehlen können diese angefordert werden.
Die Telefonnummer des jeweiligen Landes entnehmen Sie bitte dem Webasto Servicestellen-Faltblatt oder der Webseite Ihrer jeweiligen Webasto
Landesvertretung.

Dans le cas d’une version rédigée en plusieurs langues, l’anglais est alors la langue qui fait foi. Si des langues devaient manquer, il est possible de les de­mander.
Pour trouver le numéro de téléphone du pays concerné, veuillez consulter le dépliant des points-service Webasto ou la page web de la représentation
Webasto de votre pays.

In caso di versione multilingue, fare riferimento alla lingua inglese. Nel caso in cui mancassero alcune lingue, è possibile richiederle.
Il numero di telefono relativo al paese specifico è indicato sull’opuscolo del centro servizi Webasto ed è disponibile sul sito web della propria filiale We­basto.

Este manual esta traducido en varios idiomas, le informamos que sólo la versión en inglés será vinculante. Se pueden solicitar otros idiomas, en caso de
que falte alguno.
Consulte el número de teléfono del país correspondiente en el folleto de los servicios autorizados Webasto, o en la página web de su representante We­basto.