Webasto BlueCool Classic User instructions

Luft-Heizgeräte
Marine Air Conditioning
Systems
Fresh-Air Units
03/2003
Operation
Settings
Trouble Shooting
BlueCool Classic
BlueCool Premium

Improper installation or repair of Webasto heating and cooling systems can cause fire or the
leakage of deadly carbon monoxide leading to serious injury or death.
To install and repair Webasto heating and cooling systems you need to have completed a
Webasto training course and have the appropriate technical documentation, special tools and
special equipment.
Only genuine Webasto parts may be used. See also Webasto air and water heaters accessories
catalogue.
NEVER try to install or repair Webasto heating or cooling systems if you have not completed a
Webasto training course, you do not have the necessary technical skills and you do not have
the technical documentation, tools and equipment available to ensure that you can complete
the installation and repair work properly.
ALWAYS carefully follow Webasto installation and repair instructions and heed all WARNINGS.
Webasto rejects any liability for problems and damage caused by the system being installed by
untrained personnel.

CONTENTS
CONTENTS
1 Digital Control Panel operation and settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.1 Operating and programming level 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Entering programming menu level 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Entering programming menu level 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Programming Premium Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Programming level 2, Premium Card TECC 4.25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Programming level 3 at 29 °C, Premium Card TECC 4.25 . . . . . . . . . . . . . . . . . . . . . . . . . .9
2.3 Programming level 3 at 15 °C, Premium Card TECC 4.25 . . . . . . . . . . . . . . . . . . . . . . . . .10
3 Programming Classic Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3.1 Programming level 2, Classic Card TCC 5.25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Programming level 3 at 29 °C, Classic Card TCC 5.25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3 Programming level 3 at 15 °C, Classic Card TCC 5.25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4 Programming Cabin Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Cabin Card 6.25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1.1 Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4.1.2 Programming level 3 at 29 °C, Cabin Card 6.25 . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1.3 Programming level 3 at 15 °C, Cabin Card 6.25 . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2 CAB V3 Card MTH2/PLANA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 Programming Fresh-Air. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
5.1 Digital Display Fresh-Air Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 Start-up Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.3 Cycle Determination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
5.4 Blower Speed Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.5 Access Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.6 Visual Error Codes - Digital Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.6.1 List of error-codes and nature of malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.7 Programming Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.7.1 Programming through <F> (Function) key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.7.2 Programming through Sun Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
5.7.3 Programming through Snow Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6 Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
6.1 Failure codes and trouble shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.2 Capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
6.2.1 Run capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
6.2.2 Start capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2.3 Trouble shooting capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2.4 Trouble shooting controller cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7 Controller Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.1 Classic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.2 Premium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.3 Air handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

CONTENTS
8 Electrical diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.1 Classic, TCC V3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.2 Classic, TCC V3 WB200 Pump Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.3 Classic, multiple units at one pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.4 Premium TECC V3, 1 and 2 compressors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
8.5 Premium TECC V3, add-on 3 and 4 compressors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.6 Premium, compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.7 Premium TECC V3 with external heater. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.8 Premium TECC V3 with calorifier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.9 Premium TECC V2, 1 compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
8.10 Premium TECC V2, add-on 3 and 4 compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
8.11 Premium, MTH mechanical thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
8.12 Premium, CAB V3 controller card + MTH2 thermostat + 3-way valve. . . . . . . . . . . . . . . . . 36
8.13 Premium, CAB V3 controller card + Plana thermostat + 3-way valve . . . . . . . . . . . . . . . . . 37
8.14 Premium, CAB V3 controller card + Digital Display Panel + 3-way valve . . . . . . . . . . . . . . . 38
8.15 Premium, Silent 5-speed for Compact and Slimline air handlers. . . . . . . . . . . . . . . . . . . . . 39
8.16 Premium, convert Danfoss into Lizhan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
8.17 Fresh-Air units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
9 Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
10 Blowers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
11 BlueCool Unit Performance Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Digital Control Panel operation and settings
6
1 Digital Control Panel operation and settings
1.1 Operating and programming level 1
Higher
values
Chiller Control
Cool
Auto
Heat
Read-out
Blower speed Lower valuesSet-up / programming
Cool cycle
mode
Automatic
mode
Heat cycle
mode
On / Off
Higher
values
(Sun)
Read-out
(0)
Lower values
(Snow flake)
Blower speedFunction
(F)
Cool cycle
mode
Automatic
operation
Heat cycle
mode
On / Off
ON Push 1x, display will show ON. During first start-up display will also flash the
current frequency (50H = 50 Hz).
After INIT, finally the room temperature will appear. Air-blower or chilled
water pump (Premium only) will start.
Depending on controller setting unit will start in cooling or heating mode. In
case error codes appear, see trouble shooting.
OFF Push 1x, unit and display will automatically shut-off when running.
MEMO(NENO) Push 1x, to memorise new settings during programming.
RETURN Push 1x, display will return to room temperature when programming.
FUNCTION Push 1x, shows b.. for blower setting.
Push 2x, shows E.. or H.. for coil or water temperature.
Push 3x, shows CODE, enter code for access programming level 2.
(Default=64) Classic only
Change b.. or enter CODE by pushing up or down key.
NEXT LINE Push 1x, for next line and memorise new setting.
DOWN Push 1x will show actual setpoint, again to lower setpoint.
BLOWER SPEED Shows actual blower speed setting, bA automatic control or b1-b5 manual,
adjustable by up or down.
UP Push 1x will show actual setpoint, again to raise setpoint.
During operation failure codes might appear on the display (see troubleshooting), when these are solved,
controller will restart within 60 seconds.
When the same failure occurs 6 times within 30 minutes the unit will stop completely without restart, LEDs
will flash in the display until cause is solved. The counter is reset after 5 minutes of compressor operation.
Failure code A01 has a time delay of approximately 40 seconds to avoid cut-out during start-up.

Digital Control Panel operation and settings
7
1.2 Entering programming menu level 2
• When security CODE is activated, push FUNCTION when unit is in operation till CODE appears in the display.
• Set security CODE by pushing UP or DOWN and confirm with FUNCTION (Default = 64).
• In case security CODE is not activated you will have direct access.
• Scroll through settings by pushing FUNCTION, values can be set by UP or DOWN keys and confirmed by FUNCTION for
next line.
• To leave this menu push ON/OFF, MEMO will be shown shortly and new settings will be memorised.
1.3 Entering programming menu level 3
• Set setpoint temperature on 15 °C or 29 °C and switch off the controller.
• Push UP and DOWN simultaneously till display lights up.
• Set security CODE when activated by pushing UP or DOWN and confirm with FUNCTION (Default = 64).
• Scroll through settings by pushing FUNCTION, values can be set by UP or DOWN keys and confirmed by FUNCTION for
next line.
• To leave this menu push ON/OFF, MEMO will be shown shortly and new settings will be memorised.

Programming Premium Unit
8
2 Programming Premium Unit
2.1 Programming level 2, Premium Card TECC 4.25
Display Setting Default Min Max Unit
bSelection of blower speed A 0 A
HWater temperature
FSelection of function mode 3 1 5
Cool Only F1
Heat Only F2
Automatic cooling/heating with reverse cycle F3
Automatic cooling/heating with external heater F4 *
Heat Only with external heater F5
UReading of voltage supply 0 Volt
1C Choice compressor 1 ON/OFF 1 0 1
2C Choice compressor 2 ON/OFF 1 0 1
3C Choice compressor 3 ON/OFF 1 0 1
4C Choice compressor 4 ON/OFF 1 0 1
PPriority order for compressors 1-4 123
LTime delay between compressor starts 1-4 9 1 9 seconds
1L Switch off temperature delay for compressor 1 0 0 55 1/10°
2L Switch off temperature delay for compressor 2 0 0 55 1/10°
3L Switch off temperature delay for compressor 3 0 0 55 1/10°
4L Switch off temperature delay for compressor 4 0 0 55 1/10°
dDehumidification cycle when system turned off (0 = non ac-
tive; 1 = 1 cycle per 24h; 2 = 2 cycles per 24h ; 3 = 3 cycles per
24h)
003
tTime to display table F 1 1 12 20 sec.
SChoice of chilled water temperature sensor outlet or inlet 1 0 2
cTemperature difference between compressor starts 15 0 99 1/10°
EMax temperature difference between chilled water outlet and
inlet
80 10 99 1/10°
*Water heater integration.

Programming Premium Unit
9
2.2 Programming level 3 at 29 °C, Premium Card TECC 4.25
Display Setting Default Min Max Unit
0Lower cut-out value in cool mode for chilled water tempera-
ture outlet
4015°
1Cut-in value in cool mode for chilled water temperature outlet 7 2 18 °
2Higher cut-out value in heat mode for chilled water tempera-
ture outlet
40 30 49 °
3Cut-in value in heat mode for chilled water temperature outlet 37 27 52 °
4Calibration chilled water temperature 0 -55 55 1/10°
5Time for display standby 15 5 99 minutes
6Calibration of chilled water temperature inlet 0 -55 55 1/10°
7Calibration of air temperature 0 -55 55 1/10°
8Calibration of voltage under 50 Hz 0 -30 50
9Select function of relais 0 0 3
Operating as staging relay 0
Controlling 3 way valve air handler by TECC card 1
Alarm indication 2
Cycle indication 3 *
ACalibration of voltage under 60 Hz -10 -30 50
bProgram Version 4.2*
cLower cut-out value in cool mode for chilled water tempera-
ture inlet
6015°
dCut-in value in cool mode for chilled water temperature inlet 9 2 18 °
EHigher cut-out value in heat mode for chilled water tempera-
ture inlet
40 30 49 °
FCut-in value in heat mode for chilled water temperature inlet 37 27 52 °
*Water heater integration.

Programming Premium Unit
10
2.3 Programming level 3 at 15 °C, Premium Card TECC 4.25
Display Setting Default Min Max Unit
0Cut-out value for low voltage 195 160 210 Volt
1Remote control activated/deactivated 0 0 1
2Choice of small relay setting indicating heat/cool cycle
0 = C1 + T1 closed at heat cycle (F4, F5).
C1 + R1 closed at cool cycle (F1, F3, F4).
C1 + R1 closed at system block.
00 Chiller
1 = For fault messages, system block (A01, A02, A09 etc.)
C1 + R1 closed, no faults.
C1 + T1 closed, system block/ failures.
001
0 for C5
3Choice of thermostatic regulation or permanent ventilation 0 0 1
4Choice of internal/external air temperature sensor 0 0 1
5Choice of temperature reading in °C or °F 0 0 1
6Calibration of blower speed 5 70 1 70
7Calibration of blower speed 4 40 1 70
8Calibration of blower speed 3 35 1 70
9Calibration of blower speed 2 29 1 70
ACalibration of blower speed 1 23 1 70
bAccess code for programming levels 0 0 99
CDuration of heat cycle in dehumidification mode 1 1 99 minutes
DDuration of cool cycle in dehumidification mode 1 1 99 minutes
EDelay before first start 1 1 20 seconds

Programming Classic Unit
11
3 Programming Classic Unit
3.1 Programming level 2, Classic Card TCC 5.25
3.2 Programming level 3 at 29 °C, Classic Card TCC 5.25
Display Setting Default Min Max Unit
bSelection of blower speed A 0 A
FSelection of function mode 3 1 5
UReading of voltage supply 0 Volt
1C Choice compressor 1 ON/OFF 1 0 1
dDehumidification cycle when system turned off (0 = non ac-
tive; 1 = 1 cycle per 24h; 2 = 2 cycles per 24h ; 3 = 3 cycles per
24h)
003
tTime to display table F 5 1 5 20 sec.
Display Setting Default Min Max Unit
0Lower cut-out value in cool mode for evaporator temperature 0 -4 15 °
1Cut-in value in cool mode for evaporator temperature 7 2 18 °
2Higher cut-out value in heat mode for evaporator temperature 45 30 50 °
3Cut-in value in heat mode for evaporator temperature 38 27 47 °
4Calibration evaporator temperature 0 -55 55 1/10°
5Time for display standby 15 5 99 minutes
6Time delay for first compressor start 1 1 20 seconds
7Calibration of air temperature 0 -55 55 1/10°
8Calibration of voltage under 50 Hz 0 -30 50
9Time delay for compressor restart after end of cycle cut-out 2 1 99 minutes
ACalibration of voltage under 60 Hz 0 -30 50
BProgram version v5.2*
CMode choice for pump exit 0 0 1
DMinimum voltage for pump exit 12 12 18 Volt
EMaximum voltage for pump exit 18 12 18 Volt
FMode choice for water valve exit 1 0 1

Programming Classic Unit
12
3.3 Programming level 3 at 15 °C, Classic Card TCC 5.25
Display Setting Default Min Max Unit
0Cut-out value for low voltage 195 160 210 Volt
1Remote control activated/deactivated 0 0 1
2Choice of blower type
0 = blower speed regulated
1 = blower speed uninterrupted
101
3Choice of thermostatic regulation or permanent ventilation 1 0 1
4Choice of internal/external air temperature sensor 0 0 1
5Choice of temperature reading in °C or °F
0 = °C, 1 = °F
001
6Calibration of blower speed 5 70 1 70
7Calibration of blower speed 4 40 1 70
8Calibration of blower speed 3 35 1 70
9Calibration of blower speed 2 29 1 70
ACalibration of blower speed 1 23 1 70
bAccess code for programming levels 64 0 99
CDuration of heat cycle in dehumidification mode 1 1 99 minutes
DDuration of cool cycle in dehumidification mode 1 1 99 minutes

Programming Cabin Controls
13
4 Programming Cabin Controls
4.1 Cabin Card 6.25
4.1.1 Setting
4.1.2 Programming level 3 at 29 °C, Cabin Card 6.25
4.1.3 Programming level 3 at 15 °C, Cabin Card 6.25
Display Setting Default Min Max Unit
bSelection of blower speed A 0 A
HWater temperature
FSelection of function mode 1 1 3
dDehumidification cycle when system turned off (0 = non ac-
tive; 1 = 1 cycle per 24h; 2 = 2 cycles per 24h ; 3 = 3 cycles per
24h)
003
tTime to display table F 1 1 5 20 sec.
Display Setting Default Min Max Unit
4Calibration chilled water temperature 0 -55 55 1/10°
5Time for display standby 15 5 99 seconds
6Time delay for first start 5 1 20
7Calibration of air temperature 0 -55 55 1/10°
bProgram version v6.2*
Display Setting Default Min Max Unit
1Remote control activated/deactivated 0 0 1
2Choice of blower type 1 0 2
3Choice of thermostatic regulation or permanent ventilation 0 0 1
4Choice of internal/external air temperature sensor 0 0 1
5Choice of temperature reading in °C or °F
0 = °C, 1 = °F
001
6Calibration of blower speed 5 70 1 70
7Calibration of blower speed 4 40 1 70
8Calibration of blower speed 3 35 1 70
9Calibration of blower speed 2 29 1 70
ACalibration of blower speed 1 23 1 70
bAccess code for programming levels 0 0 99
CDuration of heat cycle in dehumidification mode 1 1 99 minutes
DDuration of cool cycle in dehumidification mode 1 1 99 minutes

Programming Cabin Controls
14
4.2 CAB V3 Card MTH2/PLANA
Version CAB 9.03
Display Setting Default Air Handler
SP Speed Position selector switch SP...
(0/1/2/3) •
tF 00 = blower off 01 •
1Setting fan speed level 1 (low) 23 •
2Setting fan speed level 2 35 •
3Setting fan speed level 3 (high) 70 •

Programming Fresh-Air
15
5 Programming Fresh-Air
The Fresh-Air controller cards allows the end-user to precise-
ly control the fresh-air temperature introduced into the dif-
ferent volumes of the vessel. It also allows humidity control.
Basically the end-user sets a differential between the outside
air temperature and the air temperature he wants to intro-
duce into the vessel. There is also a ceiling limit which can
be programmed separetly to avoid that the freshair temper-
ature becomes too cold and uncomfortable during night op-
eration when outside temperatures drops too low.
5.1 Digital Display Fresh-Air Control
The Fresh-Air Control display will give the following imme-
diate read-outs :
1) Normal Read-out: Air-out temperature after treatment.
Push <F> key to obtain (examples):
2) 2b 3 = Extraction Blower setting
3) 1b 3 = Fresh-Air blower setting
4) H 9.6 = chilled water temp. read-out
5) E 35.2 = outside air temp. read-out
6) U232 = AC voltage input reading
5.2 Start-up Procedures
When starting up the Fresh-Air control the Fresh-air blowers
will operate at the lowest possible speed setting to draw
down the air-out temperature as quickly as possible to the
reference set-point and to eliminate accumulated moisture
in the air-ducting.
After the start-up period the Fresh-Air blower speed will re-
sume operation at the speed setting as initially pro-
grammed.
Speed setting of the Fresh-Air and Extraction Air blowers
can be different so as to obtain the desired over-pressure in
the vessel.
The <F> key also gives access to such parameters as:
– reheat 1/2 on/off
– time delay between Fresh-Air Blower start and Extraction
Blower start-up
– differential between Reheat 1/2 cut-in and reference set-
point.
See also 5.7.2 "Programming through Sun Key" and 5.7.3
"Programming through Snow Key".
Higher
values
(Sun)
Read-out
(0)
Lower values
(Snow flake)
Blower speedFunction
(F)
Cool cycle
mode
Automatic
operation
Heat cycle
mode
On / Off

Programming Fresh-Air
16
5.3 Cycle Determination
Here-above drawings explain the operating window with
the associated setpoints and reheat differentials.
The choice between heat cycle and cool cycle is done auto-
matically by the controller card depending on the chilled
water temperature as recorded by the controller card. The
switching temperature is determines by the programming
lines 3 and 4 (snow key).
Factory settings are as following:
Lower ceiling : 18 °C
Higher ceiling : 20 °C
This means that below 18 °C chilled water temperature the
fresh-air controller considers that cool cycle operation is re-
quired; above 20 °C the controller switches to heat cycle op-
eration. Between 18 °C and 20 °C the controllers suspends
controlling activity and waits to see which cycle is definitely
adopted.
5.4 Blower Speed Regulation
As already explained blower speed can be set in a differen-
tial way between the Fresh-Air blowers (1b) and the Extrac-
tion Blowers (2b).
In addition the Fresh-Air blowers can be set manually on a
fixed speed without any reference to the chilled water tem-
perature and/or outside/inside air temperatures or start-up
procedure. This choice can be made in programming mode
(sun key - line 9).
5.5 Access Code
The end-user can deny access to all program settings by in-
troducing an access code (see 5.7.3 "Programming through
Snow Key" - code <b>). Blower speed and setpoints always
remain accessible.
Once an access code is validated, the digital panel will show
<Code> if the end-user tries to access other functions then
blower speed or set-point. To gain full access push the sun
key to reach the code number as programmed and push the
<F> key again to gain access to full program settings.
5.6 Visual Error Codes - Digital Display
The following malfunctions will be displayed directly on the
digital display by a code and will be followed by a system
halt.
Whenever any of these codes appear the system is stopped
for approx. 60 seconds and then a re-start 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 re-starts will be attempted and the user will have
to re-set the system by pushing the ON/OFF switch or by
temporarily cutting out the AC supply to the system.
35°C
24°C
22°C
20°C
5°C 24°C
22°C
21.5°C
Reference Setpoint
Example of operating window setting - Fresh-Air Control - Cool Cycle
Reheat 2 cuts in at 20° - cuts out at 22°
Cooling Coil 3 way valve cuts out at 20°
and cuts in again at 22°
Reheat 1 cuts in at 22° - cuts out at 24°
Reference Setpoint Ceiling Limit = 20° - i.e. reference setpoint will always be 20 °C or higher
Outside air temperature
Differential = 16 °C - Prog. Line 0 - Sun Key
Outside air temperature
Differential = 18 °C - Prog. Line 2 - Sun Key
Reference Setpoint Ceiling Limit = 24° - i.e. reference setpoint will always be 24 °C or lower
Reference Setpoint
Reheat 1 cuts out at 24° - cuts in at 22°
Heating Coil 3 way valve cuts out at 24°
and cuts in again at 22°
Reheat 2 cuts out at 22° - cuts in at 21.5°
Example of operating window setting - Fresh-Air Control - Heat Cycle

Programming Fresh-Air
17
5.6.1 List of error-codes and nature of mal-
function
Code <AAA> :
Persistent low voltage (voltage below 185 V) for more than
5 seconds.
<A09> - absent or defective external air sensor
<A10> - absent or defective treated air sensor
<EEEE> - absent or defective chilled water sensor
Code A02 :
Check the straps on HP/BP connectors
5.7 Programming Parameters
Three levels of programming parameters are available to the
end user.
5.7.1 Programming through <F> (Function)
key
2b 3 = Extraction blower(s) - 5 manual speeds can be pro-
grammed - last setting is memorized.
1b 3 = Fresh-Air blowers - 5 manual speeds can be pro-
grammed - last setting is memorized.
1r01 = reheat N° 1 activated.
1r00 = reheat N°1 on standby.
2r01 = reheat N° 2 activated.
2r00 = reheat N° 2 on standby.
L 09 = time delay between 1b (Fresh-air blower) and 2b (Ex-
traction blowers) in seconds.
1L2.0 = temperature differential reheat N° 1 operation as
measured from reference setpoint (2.0 °C).
2L2.5 = temperature differential reheat N° 2 operation as
measured from reference setpoint (2.5 °C).
d 0 = number of dehumidifying cycles per 24 Hours (if such
cycle is programmed in absence - see programming by snow
key).
t 1 = number of minutes before display switches back to air-
out temperature read-out after the <F> key is used.
5.7.2 Programming through Sun Key
To enter this programming mode, first switch off Display by
on/off key, then push Sun Key for 3 seconds. You will now
enter Sun Key programming mode as following:
0 16 = temperature differential in °C for cool cycle opera-
tion. Max = 25 °C - mini = 5 °C.
1 20 = max lower ceiling of reference setpoint cool cycle.
Mini = 10° - max = 30 °C.
2 18 = temperature differential in °C for heat cycle opera-
tion. Max = 35 °C - mini = 10 °C.
3 24 = max. higher ceiling for reference setpoint heat cycle.
Mini = 10° - max. = 35 °C.
4 0.0 = temp. read out calibration chilled water sensor
(from -9.9 to +9.9 °C).
5 15 = number of minutes before the Digital Display switch-
es into sleep mode. Max. = 99 minutes.
6 0.0 = outside air temperature sensor calibration.
7 0.0 = air-out (after treatment) temperature calibration.
8 00 = AC voltage reading calibration 50 Hz.
9 01 = choice between normal procedure Fresh-Air blower
operation of manual fixed speed.
0 = manual speed regardless of all operating procedures.
a 00 = AC voltage reading calibration - 60 Hz
5.7.3 Programming through Snow Key
To enter this programming mode, first switch off Display by
on/off key, then push Snow Key for 3 seconds. You will now
enter Snow Key programming mode as following:
0185 = AC voltage low safety cut-out (185 V)
1 0 = infrared remote control disabled.
1 1 = infrared remote control enabled.
2 1 = type of blower used:
0 = standard centrifugal
1 = cross-flow
3 18 = lower ceiling switch-over window between cool and
heat cycle (18°)
4 20 = higher ceiling switch-over window between cool and
heat cycle (20°)

Programming Fresh-Air
18
5 00 = Temperature read-out in Celsius or Fahrenheit
0 = Celsius
1 = Fahrenheit
6 70 = calibration blower speed N° 5
7 40 = calibration blower speed N° 4
8 29 = calibration blower speed N° 3
9 29 = calibration blower speed N° 2
a 23 = calibration blower speed N° 1
b 64 = programming access code-locked
00 = no access code required
01 to 99 = access code required
c 01 = duration of dehumidifying heat cycle in minutes
d 01 = duration of dehumidifying cool cycle in minutes.

Trouble Shooting
19
6 Trouble Shooting
6.1 Failure codes and trouble shooting
Failure
code
Description Possible cause Solution
AAA Low Voltage Low voltage cut-out. Power supply was
over 5 sec lower than controller setting.
Probably caused by long length power
supply cable or overload.
Check setting, default 195 V.
Don't set below 195 V to avoid damages
to the compressor or to expire warranty.
Improve power supply.
Voltage too low for initialization, power
supply will be far below 195 V.
Check power supply.
A01 Low pressure cut-out
compressor 1
(Classic > 20.000 BTU)
15 to 35 PSI /
1 to 2.4 bar
Defective pressure sensor or open/short
circuit.
Check wiring or replace pressure sensor
on Schrader valve.
COOLING MODE:
- Insufficient evaporator water flow
(Premium) or air flow (Classic).
- Air lock in water circuit (Premium) or
broken circulation pump.
Check water or air flow.
ΔT evaporator in/out minimum 4K.
Bleed Premium water system; check
pump operation.
HEATING MODE:
- Insufficient seawater flow or seawater
to cold.
- Blocked sea-water strainer or not
primed.
Check discharge water volume.
V= 8 l/min
(or > 30,000 BTU V= 18 l/min).
ΔT in/out minimum 4K.
When T seawater < 4 °C: preheating
necessary.
Clean strainer and bleed seawater circuit.
Lack of refrigerant. Refrigerant leak check.
A02 High pressure cut-out
compressor 1
350 to 250 PSI /
24 to 17.24 bar
Defective pressure sensor or open/short
circuit.
Check sensor and wiring. Replace sensor
on Schrader if necessary.
COOLING MODE:
- Insufficient seawater cooling or
defective circulation pump.
- Blocked seawater strainer or not
primed.
Check discharge water volume.
V= 8 l/min
(or > 30,000 BTU V= 18 l/min).
Clean strainer and bleed sea-water circuit.
HEATING MODE:
- Insufficient evaporator water flow
(Premium) or air flow (Classic).
- Air lock in chilled water circuit
(Premium) or broken circulation pump.
Check water or air-flow.
ΔT evaporator in/out minimum 4K.
Bleed chilled water system or check pomp
operation.
A03 Low pressure cut-out
compressor 2
(Premium only)
See A01 See A01
A04 High pressure cut-out
compressor 2
(Premium only)
See A02 See A02
A05 Low pressure cut-out
compressor 3
(Premium only)
See A01 See A01
A06 High pressure cut-out
compressor 3
(Premium only)
See A02 See A02

Trouble Shooting
20
A07 Low pressure cut-out
compressor 4
(Premium only)
See A01 See A01
A08 High pressure cut-out
compressor 4
(Premium only)
See A02 See A02
A09 Cabin temperature
sensor failure
(internal and external)
Broken internal or external temperature
sensor, open/short circuit, not present or
programmed wrong.
Replace sensor or controller.
In case of external sensor try to reprogram
to internal sensor first to determine
failure.
A10 Evaporator temperature
sensor failure.
Defective water temperature sensor
(Premium), evaporator sensor (Classic) or
open/short circuit.
Check wiring or replace sensor.
Water infiltration (condense) can cause a
read-out derivation or erratic functioning
before an error code occurred.
CA11 All compressors manually
off.
Compressor(s) programmed not active in
controller setting.
Check settings. At least one compressor
should be programmed active.
C01=ON C00=OFF
All compressors
automatically
deactivated.
Chilled water temperature is below cut-in
temperature.
Check compressor status LED on display.
Error message must disappear once
chilled water temperature is rising above
cut-out value (factory setting 7 °C).
bA11 Fan standby. Blower operation from TECC card or
cabin controller impossible.
Discharge temperature higher than set
point on cooling or lower on heating.
Run compressor/unit for a certain time to
reach required discharge temperature.
Blower fan will start and blinking error
code bA11 will disappear automatically.
tA11 Tlow (in cool mode,
deicing) or Thigh (in heat
mode) limit exceeded
(Classic only).
Compressor stopped to defrost or to cool
down in heat mode.
Compressor exceeded limits. Automatic
restart, no complete system halt.
Code <tA11> visible in the display instead
of evaporator coil temperature.
Press <F> key (5) to read out evaporator
coil temperature or code <tA11> (F key -
line E).
Check controller settings to be set default
(29 °C line 0, 1, 2 and 3).
EA11 ΔT between chilled water
IN/OUT above limit
(Premium only).
Insufficient evaporator water flow. Check controller settings, see 29 °C
settings line F.
Check water flow, ΔT evaporator in/out
minimum 4K.
Bleed water system or check pump
operation.
init Initialization procedure or
system block.
Setting DIP switches not according to the
number of compressors.
Check setting DIP switches
(TECC V2 only).
Defective wiring,
open/short circuit.
Check control panel controller cable and
connections.
Replace defective cable, panel or
controller card.
Failure
code
Description Possible cause Solution