Webasto BLUE COOL User manual

Operation Manual
WEBASTO BLUE COOL PREMIUM
Chilled Water Systems
General Information
Dear Webasto Customer!
This operation manual provides an overview about how to use the compact air condition system
and its control panel. An extensive description and documentation can be found in the installation
and service manual.
Safety Notes
In general, all A/C systems run at 230 Volts AC. For all work performed on components like
pumps, compressor, blowers or electronics, the power connection must be interrupted. All work on
electrical wiring must be performed by specialized installers.
Before starting the air-condition system, check the following points:
•The closing valve at the sea-cock is open!
•The sea-water strainer is clean and filled with water!
•The boat has enough water under the body and the sea-cock is not blocked!
•All supply and return air grilles are open and not blocked by luggage, clothing or anything else!
•After turning unit on, water comes out of the over-board discharge. If it does not, turn the
unit off and check the sea-water circuit again!
Warranty claims
Failure to follow the installation manual and the information, recommendations and 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.
Maintenance
Check monthly •Air filter in the return air grilles (where applicable) and clean if necessary.
•Sea water circuit for leaks in the whole system from the sea-cock to the
sea water exit.
•Condensation drain for free flow and leaks.
•Air-ducting for damage, interruption and free flow.
•Function of the system by having it run for at least 10 minutes.
Winter storage At frost temperatures the whole sea water circuit must be emptied and the
sea water valve closed.

Designated Control Panels
The chiller unit is operated and controlled by the Chiller Control digital 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 Air Control digital
control panels.
The system must be started with the Chiller Control prior to normal functionality of the air-
handlers in other cabins.
Chiller Control •Start and stop of the chiller unit
•Programming and setup of the chiller unit
•Setup of directly connected air-handlers
•Selection of operation mode (Automatic, Cooling, Heating)
Air Control •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 Air Control!
„Chiller Control“ for chiller and directly connected air-handlers
The digital control panel is always factory pre-programmed and the secondary commands are
code-protected.
•If your chilled water system has a heating option, the cabins can be heated until the sea-water
temperature drops below 10°C (50°C).
The function „Automatic with Reverse Cycle” (f3) is pre-set.
•If an external water heater is integrated in your chilled water system, you can heat independently
from the sea-water temperature (See chapter “External Heater” in the operation manual).
The function „Automatic with External Heater” (f4) is pre-set.
Heat Cycle
Mode
Manual Blower
Operation
Cool Cycle
Mode
Read-Out
(0)
Higher
Values
(Sun)
Lower
Values
(Snow flake)
Function/Blower Speed
(
F
)
On/Off

Operating the Chiller Control
When the air-conditioning is connected to electrical power, the system initializes itself. The display
shows Init and afterwards the frequency, e.g. 50 Hz.
Starting Press once the button.
On is displayed and after appr. 20 sec. the current room temperature, e.g.
28.5 (°C) (83°F) is shown. Depending on the room and set-point
temperature the appropriate mode will start. Mode indication by LED.
→A malfunction is indicated by a blinking error code (see below)
→ba11 is no error code that causes a system stop (see below)
Setting the
Temperature With the buttons and between 15°C (59°F) and 29°C (84°F) while the
room-temperature is displayed.
e.g. room temperature 25° C (77°F)
Set temperature = 20°C (68°F), Cool mode starts.
Set temperature = 29°C (84°F), Heat mode starts.
Setting the Blower
Speed Press the button until bis shown to the left and the selected value to the
right, e.g. b 5 (Blower speed 5)
•Value Range (Blower speeds): 1-2-3-4-5 and A
•Factory Setting: A(Automatic Blower Speed)
Program with the buttons and . Confirm by pressing the button.
Secure your setting by pressing the button. The display shows memo
and then the room-temperature.
→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.
→The manual blower speed mode (1 to 5) is indicated by the LED
„Manual blower operation“.
Displaying the
chilled water
temperature
Press the button until His shown to the left and a numerical value to the
right, e.g. H10.5. Check if the current operation mode is functioning
properly.
→Cool mode (LED snow flake) = Evaporator temperature drops constantly
→Heat mode (LED sun) = Evaporator temperature rises constantly.
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 manual.

„Air Control” for indirectly connected air handlers
The digital control panel is always factory pre-programmed and 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) (83°F) is shown.
Setting the
Temperature With the buttons and between 15°C (59°F) and 29°C (84°F) while the
room-temperature is displayed.
e.g. room temperature 25° C (77°F)
Set temperature = 20°C (68°F), Cool mode starts.
Set temperature = 29°C (84°F), Heat mode starts.
Attention: Only the mode that is preselected by the Chiller Control
can be started.
Setting Blower
Speed Press the button until bis shown to the left and the selected value to the
right, e.g. b 5 (Blower speed 5)
•Value Range (Blower speeds): 1-2-3-4-5 and A
•Factory Setting: A(Automatic Blower Speed)
Program with the buttons and . Confirm by pressing the button.
Secure your setting by pressing the button. The display shows memo
and then the room-temperature.
→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.
→The manual blower speed mode (1 to 5) is indicated by the LED
„Manual blower operation“.
Displaying the
Evaporator
Temperature
Press the button until Eis shown to the left and a numerical value to the
right, e.g. E10.5.
Heat Cycle
Mode
Manual Blower
Operation
Cool Cycle
Mode
Read-Out
(0)
Higher
Values
(Sun)
Lower
Values
(Snow flake)
Function/Blower Speed
(
F
)
On/Off

Error code display and actions
The error codes are viewed on the display screen. After the error codes are displayed, the system
is shut off for 60 sec. and re-started (except for ba11). If the same error occurs within 30 minutes,
the A/C system will be completely stopped. In this case, it can only start again if the error has
been solved and the system has been completely switched off and on again.
Error codes and causes
AAA Persistent low voltage (below 195 Volt for more than 5 sec.)
A01 Low pressure cut-out compressor 1
→Not enough refrigerant in the system, please inform service station.
→Sea water temperature in heat mode too low (<7°C), heat mode not
possible.
A02 High pressure cut-out compressor 1
→Sea water circuit interrupted, please check circuit.
→Too much refrigerant in system, please call service station.
→Sea water temperature in heat mode too high (>17°C), heat mode not
possible.
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 (external or internal) defective or absent.
A10 Temperature sensor at evaporator defective or absent.
CA11 All compressors have been deactivated. Re-activate with the code menu
bA11 Blower operation not yet active (not a system stop). The current chilled
water temperature does not correlate with the programmed room-
temperature.