Operating Instructions
Webasto BlueCool C-Series
Chilled Water Marine Air-Conditioning Systems
General information
ear Webasto Customer!
D
These operating Instructions provide an overview about how to use the chilled water air-
conditioning system and its control panels.
An extensive documentation and description can be found in the Installation and Service
Instructions.
To ensure safe use of the appliance, ALWAYS read and follow all instructions
in this manual. It is very important that an authorized Webasto dealer carries
out any repair or maintenance not described in this manual.
Safety notes
In general, all Webasto BlueCool C-Series air-conditioning systems are running on 230 Volt AC.
For all work at any of the components like pumps, compressor, blowers or electronics, the power
connection has to be interrupted. All work at the electric wiring must be performed by specialized
installers.
Before starting the Chiller unit, check the following points:
• The closing valve at the sea water valve is open!
• The sea water strainer is clean and filled with water!
• The boat has enough water under the body and the sea water inlet is not blocked!
• All supply and return air grilles are open and not blocked by luggage, clothing or anything
else!
• After turning the system on, water comes out of the over-board discharge. If not, switch
off the system and check the sea water circuit again!
Designated Control Panels
The Chiller unit is operated and controlled by the digital Chiller control panel.
Directly connected air handlers for one cabin are also operated by this control panel.
Other cabins with indirectly connected air handlers are controlled by separate digital cabin
control panels.
The system must be started with the digital Chiller control panel prior to normal
functionality of the air handlers in other cabins.
Digital Chiller control panel:
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• Switching the Chiller unit on and off
• Programming and setup of the Chiller unit
• Setup of directly connected air handlers
• Selection of operation mode (Automatic, Cooling, Heating)
• Switching the Chiller unit on and off
• Programming and setup of the Chiller unit
• Setup of directly connected air handlers
• Selection of operation mode (Automatic, Cooling, Heating)
Digital cabin control panel:
• Start and stop of indirectly connected air handlers
• Temperature and blower setting for indirectly connected air handlers
The operation mode can not be selected with the cabin control panel!
Digital Chiller control panel for Chiller units and
directly connected air handlers
The digital Chiller control panel ist factory pre-programmed. The secondary commands are
code-protected.
• If your Chiller unit has a heating option, the cabins can be heated until the sea water
temperature drops below 6 °C.
The function „Automatic with reverse heating operation” (F3) is pre-set.
• If an external water heater is integrated in your chilled water air-conditioning system, you
can heat independently from the sea water temperature (See installation instructions for
external heater).
The function „Automatic with external heater” (F4) is pre-set.
Cooling mode
Automatic mode
Heating mode
On / Off
Cool
Auto
Heat
Read-out
Higher
values
Blower speed
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Lower values Set-up / programming
When the air-conditioning system is connected with the electrical power, the system initializes
Operating the Chiller control panel
Init
itself. The display shows
and afterwards the frequency, e.g.
50 Hz
.
Starting
Press once the button.
On is displayed and after appr. 5 sec. the current room temperature, e.g. 28.5 (°C) is shown.
Setting the temperature
With the buttons and between 15 °C and 29 °C while the room temperature is
displayed.
e.g. room temperature 25 °C
Set temperature = 20 °C, Cooling mode starts.
Set temperature = 29 °C, Heating mode starts.
Attention: Only the mode that is preselected by the digital Chiller control panel can
be started.
Setting blower speed
Press the button until b is shown to the left and the selected value to the right, e.g. b 05
(blower speed 5)
• Value range (blower speeds): 1-2-3-4-5 and A
• Factory Setting: A (Automatic blower speed)
Set value with the buttons and . Your setting is secured.
In the automatic blower speed mode (b A) the blower start and operation depends on
the temperature.
It can take some time before the blower starts.
Displaying the chilled water temperature
Press the button until E is shown to the left and a numerical value to the right, e.g. E10.5.
Check if the current operation mode is functioning properly.
Cooling mode (LED snow flake) =Chilled water temperature drops constant
H
eating mode (LED sun) =Chilled water temperature rises constantly
ly
Access to further program levels
Press the button until code is displayed. With a special access code specific settings can
be modified (by the installer).
Further information can be found in the Installation Instructions.
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Illustration see section "Digital Chiller control panel for Chiller units and directly connected
Digital cabin control panel for indirectly connected air
handlers
air handlers".
The digital cabin control panel ist factory pre-programmed. The secondary commands are
code-protected.
Starting
Press once the button.
On is displayed and after appr. 20 sec. the current room temperature, e.g. 28.5 (°C) is shown.
Setting the temperature
With the buttons and between 15 °C and 29 °C while the room temperature is
displayed.
e.g. room temperature 25 °C
Set temperature = 20 °C, Cooling mode starts.
Set temperature = 29 °C, Heating mode starts.
Attention: Only the mode that is preselected by the digital Chiller control panel can
be started.
Setting blower speed
Press the button until b is shown to the left and the selected value to the right, e.g. b 05
(blower speed 5)
• Value range (blower speeds): 1-2-3-4-5 and A
• Factory Setting: A (Automatic blower speed)
Set value with the buttons and . Your setting is secured.
In the automatic blower speed mode (b A) the blower start and operation depends on
the temperature. If there is no need for blower operation, the display shows ba11.
It can take some time before the blower starts.
Displaying the chilled water temperature
Press the button until H is shown to the left and a numerical value to the right, e.g. H10.5.
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The following malfunctions will be displayed directly on the digital control panel by a code or
Error code display and actions for the digital Chiller
and cabin control panel
Error codes and causes
emitted as LED flash code directly on the Chiller controller card. It will be followed by a system
halt. Whenever any of these codes appear the system is stopped for approx. 60 seconds and
then a restart is attempted. If for more than 30 minutes the same malfunction occurs, the
system will be stopped completely and the error code will become steady. No more restarts
will be attempted and the user will have to re-set the system by pushing the key or by
temporarily cutting out the AC supply to the system.
Code A01 to A15: Pressure safety cut-out of compressors 1 to 6. The high pressure and low
pressure safety switches are directly controlled by the controller card. This also applies to the
time-delays for restart and other functions.
Attention: If any of these error codes appear too frequently and no appropriate action can
be taken with the available means on board, it is necessary to call a specialist..
Do not insist with manual restarts in such case as this may cause major damage to the
principal components of the air-conditioning system (compressors, pumps, etc.).
AAA Persistent low voltage (below limit for more than 5 sec.
See Installation Instructions for further details.)
A01 Low pressure cut-out compressor 1
Cooling mode: Insufficient chilled water flow.
Heating mode: Insufficient seawater flow or seawater temperature
in heating mode too low (< 7 °C), heating mode not possible.
A02 High pressure cut-out compressor 1
Cooling mode: Insufficient seawater flow.
Heating mode: Insufficient chilled water flow.
A03 Low pressure cut-out compressor 2 (causes see A01)
A04 High pressure cut-out compressor 2 (causes see A02)
A05 Low pressure cut-out compressor 3 (causes see A01)
A06 High pressure cut-out compressor 3 (causes see A02)
A07 Low pressure cut-out compressor 4 (causes see A01)
A08 High pressure cut-out compressor 4 (causes see A02)
A09 Room temperature sensor defective or absent.
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A10 Temperature sensor at chilled water circuit defective or absent.
A11 Low pressure cut-out compressor 5 (causes see A01)
A12 High pressure cut-out compressor 5 (causes see A02)
A13 Low pressure cut-out compressor 6 (causes see A01)
A14 High pressure cut-out compressor 6 (causes see A02)
A15 5 seconds after switch-on of chilled water pump, flow monitor detects
insufficient chilled water volume flow
CA11 All compressors have been deactivated. Re-activate with the code menu
INIT Initialization procedure or system block.
bA11 Cabin control panel only.
No error but status information.Indicating that blower is in standby
mode. Blower will automatically start once chilled water circuit has
reached required temperature.
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Failure to follow the Installation Instructions and the information, recommendations and
Warranty claims
Maintenance
descriptions therein will void all warranties. The same applies if repairs are carried out
incorrectly, with the use of non-genuine parts or by unauthorized personnel. Warranty claims
are only valid if the claimant can verify that he has complied with the maintenance and safety
instructions.
Check daily:
• Sea water strainer. Clean it and remove any debris if required.
Check monthly:
• Air filter in the return air grilles (where applicable). Clean if necessary.
• sea water circuit for leaks in the whole system from the sea water valve to the sea water
outlet.
• condensation drain for free flow and leaks.
• air-ducting for damage, interruption and free flow.
• Function of the system. Run the system for at least 10 minutes.
Check yearly:
• electrical connections for corrosion of contacts and to ensure that they are secure.
Winter storage
• At frost temperatures the whole sea water circuit must be emptied and the sea water valve
closed.
General Recommendation
When leaving the boat unattended for a longer period close all sea water valves.
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