Webasto WBCC Series Specification sheet

Operation/Installation Manual - WBCC Series - Page : 1
Operation/Installation Manual - WBCC Series - Page : 1
Edition dated 1st January 2004
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Webasto - AIR CONDITIONING
SEA-WATER PUMP
ELETRICAL
CONTROL
BOX
SELF-CONTAINED CPAC
UNIT - 7000 TO 32000 BTU
- BLOWER EXIT TURNED
UPWARDS
FLEXIBLE AIR DUCT
TRANSITION BOX + SUPPLY
AIR-GRILLE
RETURN AIR-GRILLE
STRAINER
OVER-BOARD DISCHARGE
DIGITAL CONTROL
PANEL
DISPLAY CABLE
POWER CABLE
SELF-CONTAINED UNITS - WBCC SERIES
OPERATION AND INSTALLATION MANUAL
COOL CYCLE LED
BLOWER LED
ROOM TEMPERATURE OR
SET-POINT TEMPERATURE
OR SECONDARY FUNCTION
READ-OUT
SET-POINT MODIFICATION
KEYS
F/BLOWER KEY - GIVES
ACCESS TO BLOWER SPEED
CONTROL AND SECONDARY
FUNCTIONS
HEAT CYCLE LED
ON/OFF KEY
SELF CONTAINED UNITS
NNEEWWEELLEECCTTRROONNIICCSS--22000000SSEERRIIEESS
19.4

Operation/Installation Manual - WBCC Series - Page : 2
Operation/Installation Manual - WBCC Series - Page : 2
Edition dated 1st January 2004
SELF-CONTAINED AIR-CONDITIONING UNITS - WBCC SERIES
OPERATION AND INSTALLATION MANUAL
C O N T E N T S Page
1) General Information ..................................................................................................
2) Digital Control - Operation Guidelines .....................................................................
2.1 - Digital Display <AIR CONTROL> - Basic Commands ...................................
3) Secondary Commandes by F/Blower key .................................................................
4) Visual Error Codes - Digital Display ........................................................................
5) Central Blower Control ...........................................................................................
6) Programmable Functions ...........................................................................................
6.1 - Digital Display <AIR CONTROL> - Programming access .............................
7) Pratical Installation Guide - Components (Pumps, accessories, etc) .......................
8) Routine Checks ........................................................................................................
8A) Trouble Shooting .....................................................................................................
9) Air-Ducting and Ventilation .......................................................................................
10) Wirings Schematics .................................................................................................
10.1 - Wiring diagram - WBCC 5 to 16 - single phase - Rotary compressors ...........
10.2 - Wiring diagram - WBCC 24 and 30 - single phase - Rotary/Scroll compr. .....
10.3 - Wiring diagram - WBCC 5 to 16 - single phase - Piston Compr. (<2000) .....
10.3 - Wiring diagram - Wiring Running Capacitor - Blowers ...............................
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1. GENERAL INFORMATION
All WEBASTO air conditioning units are
controlled by a Digital Display <AIR
CONTROL> which gives access to all
functions necessary for the normal opera-
tion of the unit and attached accessories
(blowers, pumps, etc).
All WEBASTO air conditioning units are
sea-water cooled by means of an AC sea-
water pump.
In order to start the system you only need
to press the <POWER> key on the digital
display.
From there on the electronic control unit
takes care of the progressive starting up of
the air conditioning unit as well as it nor-
mal functioning.
The digital display will show the present
air temperature of the cabin in which the
digital display is situated or where the
main temperature sensor is located (in
case the optional secondary temperature
sensor is used).
After a delay of approx. 20 seconds the
display will indicate the cycle in which
operation will start i.e. <COOL> or
<HEAT>. The choice will depend upon
the set-point temperature and the air-tem-
perature as measured by the display panel.
After a further delay of approx. 50 sec-
onds the compressor(s) will start up and
the normal operation cycle will begin.
2000 SERIES DIGITAL DISPLAY
As from September 2000 all WEBASTO air
conditioning units are controlled by a Digital
Display <AIR CONTROL> 2000 SERIES
which gives access to all functions necessary
for the normal operation of the unit and
attached accessories (blowers, pumps, etc).
2000 Series Electronic Controls are easily
All air-conditioning units based on her-
metic compressors function on the same
principle : a compressor compresses the
refrigerant gas which is then condensed to
liquid when passing through a sea-water
cooled condenser. Subsequently the liquid
refrigerant is injected through a small
nozzle and evaporates. This evaporation
process produces the refrigeration effect.
The evaporation takes place in a tubular
finned coil (also called : evaporator coil).
A blower forces the air through the evap-
orator coil.
While passing through the evaporator the
temperature of the air is lowered by
approximately 15 °C.
So far for the general principles.
HOW DOES IT WORK ?
COPPER TUBING OF
FINNED EVAPORATOR
FINNED TUBULAR
EVAPORATOR COIL
CONDENSER
EXIT
BLOWER EXIT
BLOWER
STAINLESS
STEEL DRAIN
PAN
CUPRO-NICKEL
CONDENSER
CONDENSER
ENTRY
REVERSED CYCLE VALVE
COOL/HEAT
HEAT CYCLE
It is quite possible to produce heat
with an air-conditioning unit. For
this purpose a 4-way reversed cycle
valve is added. During heat cycle
operation the sea-water condenser
effectively becomes the evaporator
and cools down the sea-water. The
finned evaporator becomes the con-
denser and produces heat to approx.
45/50° C.
Heat cycle becomes inefficient
when the outside water temperature
drops below 6° C approx.
STANDARD ELECTRICAL ACCESSORIES
ELECTRICAL CONTROL BOX DIGITAL DISPLAY PANEL
MINIMUM STANDARD CONTROL ELEMENTS DELIVERED FOR ALL CPAC SELF-CONTAINED UNITS
Summary : 1 Alu control box + 1 display cable + 1 digital control panel (External air-sensor is optional)
104
DISPLAY CABLE
OPTIONAL EXTERNAL AIR SENSOR
76
Operation/Installation Manual - WBCC Series - Page : 3
Operation/Installation Manual - WBCC Series - Page : 3
Edition dated 1st January 2004
P
P = 132 mm
262
130
19.4

recognized by the inscription <2000 Series>
at the bottom left hand corner of each digital
display.
All WEBASTO air conditioning units are
sea-water cooled by means of an AC sea-
water pump.
In order to start the system you only need to
press the <POWER> key on the digital dis-
play.
From there on the electronic control unit
takes care of the progressive starting up of
the air conditioning components as well as it
normal functioning.
The digital display will show the present
room temperature of the cabin in which the
digital display is situated or where the main
temperature sensor is located (in case the
optional secondary temperature sensor is
used).
The WEBASTO <AIR CONTROL> digital
display allows gives access to information
and controls at three distinct levels :
Immediate Access - Level 1 :
1) Room temperature read-out in the main 4
LED display window
2) 3 small LED’s to the left indicating the
operating cycle presently active :
- Cool cycle only operation.
- Automatic cycle switching governed by
end-user entered set-point temperature.
- Heat cycle only operation.
3) 2 set-point keys give immediate access
to the thermostatic set-points for blower-
control (“Sun” and “Snow” key).
These keys are also used to alter program-
ming values - see here-after chapter 6.
Secondary commands and info -
Level 2 :
4) The F/Blower key gives immediate access
to a number of secondary commands which
need to be accessed frequently for day to day
operation.
First access is to blower speed control, then
evaporator temperature read-out, etc.
See hereafter drawing 2.1 for complete list.
Programming Commands - Level 3 :
A number of programming commands that
do not need to be accessed for day to day
operation are hidden and require a special
procedure to enable access and modification.
An access code can be enforced to avoid
accidental modification of programming val-
ues.
See Chapter 6 - Page 7.
Start-up delay :
After pushing the on/off key the LED’s will
display <ON> while initializing the system.
Push again to stop operation - the display
will briefly show <off> before extinction.
The adequate LED to the left (heat, cool , etc)
will come on after approx. 20 seconds and
compressor operation will start after approx.
60 seconds.
The sea-water circulation pump will come on
approx. 9 seconds before compressor start.
Modification of set-point tempera-
ture :
The set-point temperature i.e. the tempera-
ture desired by the operator for blower oper-
ation directly connected to the TCC con-
troller card, can be modified as following :
Press and hold one of the set-point selector
keys and wait until the new desired set-point
temperature is obtained. Release the set-
point key.
The display will return to normal room tem-
perature read-out after approx. 5 seconds.
See drawing 2.1 - page 4 for visual operation
guide.
Non-volatile memory keeps last settings.
Special New Features - 2000 Series :
A) Automatic blank/sleep mode - pro-
grammable time delay. Factory default : 15
minutes. While in blank/sleep mode the cycle
LED flashes discretely every 20 seconds. To
go back to normal operation push any key.
Operation/Installation Manual - WBCC Series - Page : 4
Operation/Installation Manual - WBCC Series - Page : 4
Edition dated 1st January 2004
2 - DIGITAL WBCC/BLOWER CONTROL - GENERAL PRINCIPLES
BASIC COMMANDS :
1 - Press to turn on - press again to turn off.
2 - Press to read set-point temperature - hold to raise
set-point temperature.
3 - Press to read set-point temperature - hold to lower
set-point temperature.
4 - Led indicating system working in cool mode
5 - Led indicating manual blower speed control is active
6 - Led indicating system working in heat mode
7 - Function/Blower Key - immediate access to :
- blower speed control .............................................
- evaporator temperature read-out ...........................
- manual cycle choice (cool, heat, auto-reverse) ....
- AC voltage read-out ..............................................
- selective on/off compressors 1 to 4 ......................
- starting priority compressors 1 to 4 .....................
- automatic dehumidifying cycle during absence
- display time secondary functions accessible by
F/Blower key
8 - Access to hidden programming functions - see
page 7.
1
3
8 - Push Both Keys Simultaneously
after Display Extinction
DRAWING 2.1 - BASIC AND SECONDARY COMMANDS
4
5
6
72
*bbAA
HH1133..22
*FF33
UU223300
11CC0011etc
PP112233etc
*dd00
*tt11
*Default Values
24.2

B) Calibrate all blower speed settings
in real time mode.
It is now possible to calibrate all speed set-
tings (1 to 5) before actually putting the sys-
tem into service.
To do so entrer programming mode with set-
point at 15° C.; proceed to following line i.e.
code <6> = speed 5 (max).
The blower will start to function as soon as
you access code <6>.
Alter value to the right of code <6> and
blower speed will immediately change in
real time. When satisfied go to following line
<7> = speed 4 and do the same.
Proceed until lowest speed N° 1 and go back
again to speed N° 5 if not satisfied.
When all speeds are programmed according
to need, validate by pushing on/off key
(<memo> will be displayed briefly). See also
page 8 - programming access.
Attention : Never program speeds
so low that the blower is in danger
of stopping or will not re-start at
that setting.
This will inevitably entail motor-
windings burn-out and will not be
covered by WEBASTO warranty.
C) Automatice De-Icing Control :
During intermediate seasons (spring,
autumn) when moderate temperature
conditions prevail, there is a definite risk
of icing the evaporator coil in cool mode
and pressure safety cut-outs in heat mode.
To allow maximum blower speed varia-
tion and still function within a normal
operating window, the TCC card is
equipped with a second temperature sen-
sor which reads the exact evaporator coil
temperature.
Whenever coil temperature approaches
the danger zone, blower speed is
increased to half speed; if that is not suf-
ficient the micro-processor will stop com-
pressor operation for pre-determined
intervals and will resume normal opera-
tion when coil temperature has moved
back to within normal operating values.
This feature is completely transparent to
the end-user without an error code dis-
play; in short this feature belongs to the
normal operating procedures in the same
way as the temperature set-points.
D) Infra-Red Remote Control :
Infra-red remote control can be obtained as
an option. This remote control is based on the
standard protocols also used by TV and other
appliances. Although the WEBASTO con-
trols have been chosen so as to avoid inter-
ference with most TV models, the end-user
should be aware that in certain cases interfer-
ence may occur with TV sets or other appli-
ances.
In general it is therefore advisable to avoid
locating a WEBASTO Air Control panel next
to other appliances using infra-red control
units whenever it is planned to use infra-red
control mode.
D) ACCESS CODE :
The end-user can deny access to all program
settings by introducing an access code (see
page 8 - code <b>). Blower speed and set-
points 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.
3. SECONDARY COMMANDS :
The F/Blower key gives immediate access to
commands and display necessary for day to
day operation. When pushing the F key you
will see to the left a code which indicates the
type of display or command and to the right
the present value.
In order of appearance here-after an explana-
tion of these commands/displays :
a) Blower speed control : < b A>
(0,1,2,3,4,5)
This command preceeded by the letter b
(blower) allows the following settings :
A = automatic blower speed adjusted to tem-
perature differential.
1 to 5 = Manual Speed Control
Speed control is in real time mode i.e.
changes are effected immediately without
any validation procedure.
Attention : All following func-
tions need validation before a new
value is accepted.
Validation is obtained by pushing
the F key again and by going to the
next function line.
Then final validation will occur
automatically when the display
goes back to room temperature
read-out or final validation can be
forced by pushing the on/off key
briefly while still in F mode.
Validation is witnessed by the brief
display of the message <memo>.
b) Read out of evaporator coil temperature :
<E10.2> (10.2 ° C) - example.
c) Cycle mode choice : <F 3> (1 to 4)
The following cycle modes can be choosen
manually :
1 = cool cycle only
2 = heat cycle only
3 = automatic cycle switching with reversible
compressor
4 = automatic cycle switching without
reversible compressor
d) AC Voltage read-out : < U232>
(232 Volts) - example
e) Manual on/off Compressor 1 : <1C01>
<1C01> = Compressor 1 on
<1C00> = Compressor 1 off
f) Manual on/off Compressor 2 : <2C01>
<2C01> = on
<2C00> = off
Idem for compressors 3 and 4 - <3C01> and
<4C01>.
g) Starting Priority Compressors 1 to 4 :
<P123> = 1,2,3,4 ; <P341>=3,4,1,2
<P A> = automatic priority rotation; when
in this priotity mode, the starting
order will be changed every next
restart after thermostatic cut-out.
h) Starting delay between compressors :
<L 9> (9 seconds) - programmable
between 1 and 9 seconds.
i) Automatic dehumidification while absent.
factory default setting : <d 0>
0 = non active
1 = 1 cycle per 24H
2 = 2 cycles per 24H etc
k) display time of secondary functions (F/
Blower key) by periods of 20 seconds.
<t 1> (factory default setting) = display
time 20 seconds.
4. VISUAL ERROR CODES -
DIGITAL DISPLAY
The following malfunctions will be dis-
played directly on the digital display by a
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Edition dated 1st January 2004

Operation/Installation Manual - WBCC Series - Page : 6
Operation/Installation Manual - WBCC Series - Page : 6
Edition dated 1st January 2004
code and will be followed by a system halt.
Whenever any of these codes appear the sys-
tem is stopped for approx. 60 seconds and
then a re-start is attempted.
If for more than 30 minutes the same mal-
function 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.
List of error-codes and nature of malfunc-
tion :
Code <AAA> :
Persistent low voltage (voltage below 195V)
for more than 5 seconds - (see also hereafter
- Trouble-Shooting - Page 9).
Code A01 to A08 *) :
Pressure safety cut-out of compressors 1 to 4.
The HP and BP (if present) safety controls
are directly controlled by the micro-proces-
sor inclusive the time-delays for re-start, etc.
*) Standard TCC controller
cards
have only 1 outlet for 1 single com-
pressor. However the embedded micro-
processor program can operate up to 4 CPAC
units from 1 single controller card. This spe-
cial controller card can be obtained on spe-
cial request but is not standard delivery.
Error codes displayed and probable nature of
anomaly.
<A01> : BP (low pressure) cut out - com-
pressor 1 - probable causes :
- insufficient refrigerant charging
level
- abnormal sea-water temperature
conditions in heat cycle (sea-water
temperatures under 6° C. approx.)
- first start-up in heat cycle with very
low chilled water circuit tempera-
tures (below 8° C approx.).
ATTENTION : models CPAC5 to 16 do
not have a low pressure safety switch (BP);
therefore if you see a A01 warning on such
model, it can only be an electrical connection
problem on the grey 3 pole HP/BP connector
on the TCC controller card. Check that the
connector is properly seated and that the BP
strap is properly tightened.
<A02> : HP (high pressure) cut out - com-
pressor 1 - probable causes :
- insufficient or non-existent sea-
water cooling - check sea-water
pump.
- too much refrigerant in system -
call specialist
- abnormal sea water temperature
conditions in heat cycle (sea-water
temperatures above 17° C approx.)
<A03> : BP cut out - compressor 2 - for
probable causes see <A01>
<A04> : HP cut out - compressor 2 - see
<A02>
<A05> to <A08> - same as above for com-
pressors 3 and 4 (if present).
If any of these error codes appear too fre-
quently 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 re-starts in such
case as this may cause major damage to the
principal components (compressors, pumps,
etc).
<A09> - absent or defective external or inter-
nal (Display Face) air sensor
<A10> - absent or defective evaporator
temperature coil sensor.
<CA11> - all compressor(s) have been disac-
tivated by soft - <F> procedure :
<1C00>, <2C00>, etc
To re-activate, reprogram as
follows : <1C01>, etc
<EA11> - compressor stopped by de-icing
control - automatic restart - this code does
not entail a complete system halt and will
only be visible when in reading out the evap-
orator temperature (F key - line E).
5. CENTRAL BLOWER CONTROL
The central <AIR CONTROL> digital dis-
play also directly controls the blower(s) of
the evaporator(s).
For all CPAC systems, there are two modes
of blower control and operation :
- thermostatic interruption of blower oper-
ation as soon as the desired set-point
temperature has been reached.
- un-interrupted blower operation regard-
less of thermostatic compressor control.
The choice between these two functioning
modes can be programmed directly by the
end user - see here-after Chapter 6 - pro-
gramming procedures.
The digital control is initially programmed
by the manufacturer in second - i.e. un-inter-
rupted blower operation.
Blower control can be manual with 5 differ-
ent speed levels or automatic; in this case
blower speed will be governed by the tem-
perature differential with the set-point tem-
perature.

Operation/Installation Manual - WBCC Series - Page : 7
Operation/Installation Manual - WBCC Series - Page : 7
Edition dated 1st January 2004
To gain access to the hidden programming
functions proceed as following :
Raise set-point to max. value i.e. 29° C (or
alternatively to lowest value i.e. 15° C) -
push Off key to extinguish digital display.
Press <snow> and <sun> key simultaneously
for approx. 3 seconds until you see to the left
of the display window a single number code
indicating the programming line presently
valid and to the right the programming value.
To go to the next programming line, push the
<F> key.
If you modify the programming value of any
line, you need to validate this new value by
pushing the <F> key again to move to the
next line. This step will validate and memo-
rize the changes made.
1° Functions accessible by raising the set-
point to 29° C. :
Code <0> - factory setting : -1° Celsius -
lower set-point temperature of the evaporator
coil temperature in cool cycle. Gives the
compressor cut-out point when the “de-
icing” procedure is activated..
Adjustment range : between -5° C. and +10°
C.
Code <1> - factory setting : +7° Celsius -
higher set-point temperature of de-icing pro-
cedure. This value gives the re-start point of
the compressor(s) after an interruption when
in de-icing mode.
Set-point temperature adjustable between
0°C. and +12° C.
Code <2> - factory setting : 40° C. higher
set-point temperature of the “de-icing” pro-
cedure in relation to the evap. coil temepra-
ture when in heat cycle (to avoid HP cut-
outs). Gives the cut-out point of the com-
pressor(s) when functioning in heat cycle.
Set-point temperature adjustable between
35° and 50° C.
Code <3> -factory setting : 35° C. - lower
set-point temperature of coil temperature cut-
in when in heat cycle. Gives the cut-in point
of the compressor(s) after an interruption
(“de-icing” procedure) when functioning in
heat cycle.
Set-point temperature adjustable between
30° and 50° C.
Code <4> - pre-programmed value : 0 - cali-
bration of temperature display of the evapo-
rator coil temperature read-out - correction
possible between -9° to +9° Celsius.
Code <5> - factory setting : 15 - time delay
in minutes before the digital display goes
into blank/sleep mode. Cycle LED flashes
discretely to indicate system is operational.
Code <6> - factory setting : 1 - time delay
first start up in seconds. To stage starting of
several CPAC units when switching on AC
supply after an interruption.
Code <7> - factory setting : 0 - calibration
of room temperature read-out. Possible
between +9 and -9° C.
Code <8> - pre-programmed value : 0.
Factory calibration of AC voltage 50 Hz as
displayed on the digital panel when access-
ing the secondary commands - F key.
Correction between -20 and +20 Volt.
Code <9> - pre-programmed value : 1 -
Time delay before re-start in minutes after a
compressor stop when in “de-icing” proce-
dure. (both for cool and heat cycle).
Code <A> - pre-programmed value : N/A.
Factory calibration of AC voltage 60 Hz as
displayed on the digital panel when access-
ing the secondary commands by the F key.
Correction between -30 and +20 Volt
Code <b> - Program version
Re-intializing of factory default set-
tings :
It is possible to force the program to re-ini-
tialize all program values to factory default
settings by the following procedure :
When reading the <b> line as above (through
the 29° set-point), push the <sun> key; con-
tinue to push; the program version will start
to flash. Keep the <sun> key pushed down
until the display shows <init>.
Leave programming mode by pushing
On/Off key - you are now back to the factory
default settings.
Attention : this procedure should never be
attempted for any program version below a
value of 1.00 - i.e. for
<b0.12> never
attempt to reinitialize the default settings :
your controller card will lock itself and can-
not be unlocked.
On the contrary - example : program version
<b1.02> or <b2.03> :OK to re-initialize.
2° Functions accessible when lowering
the set-point temperature to 15° C :
Code <0> - pre-programmed value : 195 -
low voltage cut-out value AC.
Time delay is 5 seconds approx. i.e. the low
voltage situation will have to persist during
more than 5 seconds before cut-out occurs.
After cut-out the electronic controller resets
and will start a new cycle. So a renewed
attempt to start the compressor will occur
after approx. 90 seconds.
PROGRAMMING MODE :
To enter programming mode : raise or lower set-point to 29 or 15° C.
Turn off system by pressing <Power> key - 14.
Press simultaneously keys <11>. The display will show to the left
<15>, the number code of the current programming line and to the right
<16> the present value.
To validate and memorize modified parameters press the <F> key (12)
and proceed to the following programming line.
6 - DIGITAL DISPLAY <AIR CONTROL> - PROGRAMMING ACCESS
0044..66
11
12
14
15 16

Operation/Installation Manual - WBCC Series - Page : 8
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Edition dated 1st January 2004
During low-voltage cut-out the display panel
will show the 3 letters <AAA>.
Programming of a cut-out level below 195 V
is done at the entire risk of the operator. It
should be noted that almost all compressor
manufacturers decline all responsibility for
defects resulting from operating the com-
pressors below 195V AC.
Code <1> - factory setting : 0 - infra-red
remote control :
0 = infra-red remote control disabled (in this
mode no interference is possible with other
infra-red commands)
1 = infra-red remote control active
Code <2> : Blower type : Centrifugal or
Cross-Flow. Factory default : 1
0 = centrifugal blowers only
1 = centrifugal + cross-flow
Code <3> - pre-programmed value : 1 -
basic choice of blower control :
0 - thermostatic control of blower operation
i.e. blower operation will be interrupted ther-
mostatically when reaching the appropriate
set-point.
1 - un-interrupted blower operation regard-
less of the thermostatic control.
Code <4> - factory setting : 1 - Choice
between integrated air sensor and external air
sensor :
1 - air sensor integrated in digital display
0 - external air sensor
Code <5> - Celsius or Fahrenheit display -
factory setting : 1
0 = Celsius read-out
1 = Fahrenheit read-out
Code <6> : modification speed N° 5 (max)
Code <7> : idem speed N° 4
Code <8> : idem speed N° 3
Code <9> : idem speed N° 2
Code <A> : idem speed N° 1
Code <b> - factory setting : 0 - access code
for programming mode.
0 = no access code required
1 to 99 = access code/number activated
*) Factory access code : in case the system is
blocked and the access code cannot be found,
you can acces the programming line by using
the factory code number : 64
Code <c> - factory setting : 1 - duration in
minutes of heat cycle dehumidifying cycle.
Code <d> - factory setting : 1 - duration in
minutes of cool cycle dehumidifying cycle.
DIPSWITCHES :
The TCC controller card has a dipswitch
arrangement which should be set and main-
tained according to the following settings :
1) TCC controller for single compressor ,
without the secondary card for compressors 3
and 4 :
Attention : if dipswitches are not set
according to the above configurations i.e.
according to the number of compressors
effectively on line, the TCC controller card
may behave in unpredictable manner :
- the initialisation <init> can not be complet-
ed - card remains locked on start-up.
- HP/BP alarms for non--existing com-
pressors.
7. PRACTICAL INSTALLA-
TION GUIDE
1) Sea-water cooling :
Install the pump/strainer assembly in such
a manner that a natural gentle upwards
slope exists from the sea-cock to the pump
itself. See also drawing hereabove ref. 6.1.
It is strongly recommended to install an
air-bleeder system both in the suction line
as well as immediately after the discharge
outlet of the pump. The advice is especial-
ly valid for pumps WEBAS-
TO250/350/1000. The WEBAS-
TO1500/2000 and Calpeda pumps 0.5HP
to 1 HP generally will not require a bleed-
er system to ensure proper operation.
For ALL boats it is strongly recommend-
ed to install a water-scoop at the entry of
the sea-cock and directed towards the bow
of the boat so that at speed positive pres-
sure builds up in the supply line to the sea-
water pump.
2) Sea-water cooling exits :
Provide for a separate sea-water exit for
each air-conditioning unit installed even if
only one pump provides cooling for all
units.
1234
OPEN
ATT. DIPSWITCH SETTINGS
BLACK = PUSHED DOWN
TO OVER-BOARD OUTLET APPROX. 10 CMS ABOVE WATER-LINE
INSTALLATION OF BLEEDER ADVISABLE
MEMBRANE PUMP CLD125 L7 12/24V
SITUATED JUST BELOW WATER-LINE
SEA-WATER STRAINER
SUCTION GENTLY UPWARDS TO
FACILITATE PRIMING
CLAM-SHELL TYPE THRU-HULL FITTING
WITH SLOTS DIRECTED TOWARDS BOW TO OBTAIN POSITIVE PRESSURE IN SUCTION LINE
NB - ALL PIPING AS SHORT AS POSSIBLE WITHOUT
KINKS NOR SYPHONS
WATER-LINE
7.1 - INSTALLATION AND POSITIONING OF SEA-
WATER PUMP AND ACCESSORIES

Introduce shut-off valves for each unit if 1
pump provides cooling for more than 1
air-conditioning unit.
This will allow easy priming of the circuit
and also calibration of the sea-water flow
for each air-conditioning unit in case of
imbalance in the water tubing lengths.
3) Evaporator coils :
The finned coils of the evaporators and/or
air-handlers are fragile. When during
installation the fins of these coils are dam-
aged, take care to re-align the fins in
order not to impair proper air-flow.
4) Air-ducts :
Flexible air-ducts need to be of good qual-
ity with sufficiently strong steel or plastic
re-inforcement. Do not restrict air-flow by
bending the air-ducts too tightly or by
accidental local deformation.
Do not install air-ducts of excessive
lengths (+ 2.5 ml); the pressure loss and
consequent reduction of air-flow will seri-
ously diminish the efficiency of the instal-
lation.
8. ROUTINE CHECKS
When starting up an air conditioning unit
it is advisable to carry out a certain num-
ber of routine checks to ensure proper
functioning of the unit.
- always check (especially after a long
absence) the functioning of the sea water
cooling system. Immediately stop the sys-
tem if no sea-water comes out of the pump
exit after compressor starts up.
- periodically check the air filter in the
return air grilles. Clean if necessay.
- check condensation drain from the evap-
orator drain pan.
- take care not to damage the air-ducts. A
damaged air-duct may stop air flow
through the evaporator, freeze up the
evaporator and subsequently damage the
compressor.
- when preparing for winter lay-up take
care to rince all sea-water circuits with a
fresh-water/glycol solution (25% or more
depending on local winter conditions).
8A. TROUBLE SHOOTING
1) No sign of live : check main electrical
supply, fuses, etc.
2) The digital display shows 3 lettres
<AAA>. This means a persistent state of
low voltage (less than 195 V AC). The
system will re-start as soon as the voltage
level climbs above cut-out level and the
system will then re-start after a time-
delay of 1 minute approx.
3) The compressor will start but no sea-
water circulation can be observed :
- check sea-cock to sea-water pump.
- check sea-water strainer
- check if pump turns
- if the pump does not turn with the com-
pressor working, check power-supply
from the main control unit box to the
pump.
4) Compressor and pump work but no cor-
rect operation in either cool or heat cycle :
- check proper air ventilation - blowers. If
air flow completely stops with the com-
pressor working, the evaporator coils may
freeze up completely, obstruing all air cir-
culation.
- during the heat cycle with too slow a sea-
water circulation you may actually freeze
up the sea-water in the cupro-nickel con-
denser and completely block the system.
- check voltage level. Do not operate a
system with a persistent voltage level
below 195 V AC.
- check freon charge if operation is still
not satisfactory, after having checked all
the above points.
5) The compressor works but is subject to
intermittent stops without having attained
the desired set-point temperature.
- the HP and BP (if present) pressure safe-
ty switches stop the compressor because
of abnormal working pressures either on
the high or on the low side. Check proper
functioning of the cooling circuit. Check
ventilator/blower system for obstructions.
- incorrect freon charge (over-charge or
insufficient charge level).
See also here-above : Error codes/inter-
rupted system operation.
6) The heat cycle takes very long to get
started.
- normal if the sea-water temperature is
very low. If sea-water temperature drops
below approx. 8° C. the heat cycle
becomes much less effective and takes
long to get properly started.
* * *
Operation/Installation Manual - WBCC Series - Page : 9
Operation/Installation Manual - WBCC Series - Page : 9
Edition dated 1st January 2004

Operation/Installation Manual - WBCC Series - Page : 10
Operation/Installation Manual - WBCC Series - Page : 10
Edition dated 1st January 2004
9 - AIR DUCTING - VENTILA-
TION
1) MINIMUM AIR-GRILLE SEC-
TIONS
In order to obtain an acceptable noise level at
max. blower speed certain requirements as
regards grille and ducts sections should be
observed.
Also the size of the transition boxe behind
the supply air-grille is important.
See table here-under to choose correct grille
sections according to BTU rating.
2) DUCT TYPE
Flexible air-ducts should be of high quality
with sufficiently strong steel spiral re-
inforcement to avoid accidental crushing.
Spiral type ducts should be extended to their
maximum possible length to obtain max.
interior smoothness.
For very long duct sections preference should
be given to rigid ducts (in PVC for example)
which offer a far greater smoothness than
flexible spiral type ducting and therefore will
greatly reduce internal friction.
For very short lengths non-insulated ducts
may possibly be used. Over greater lengths it
is advisable to use insulted type ducts to
avoid condensation on the outside of the air-
ducts.
AIR/HANDLER-CPAC SUPPLY AIR GRILLE RETURN AIR GRILLE DUCT DIAM. DUCT DIAM.
MODEL MODEL/ SECTION cm² MODEL/SECTION cm² <1.8 M DUCT LEN. >1.8 M DUCT LEN.
4000/4500 BTU
6000 BTU
9000 BTU
12000 BTU
16000 BTU or
16000 BTU
24000 BTU
32000 BTU
1 x 8x4” 150 cm²
1 x 10x4” 190 cm²
1 x 12x4” 235 cm²
1 x 10x5” 250 cm²
1 x 12x6” 390 cm²
2 x 10x4” 380 cm²
2 x 10x5” 500 cm²
2 x 12x5” 650 cm²
1 x 12x5” 325 cm²
1 x 11x8” 490 cm²
1 x 11x8” 490 cm²
1 x 14x7” 550 cm² or
1 x 14x10” 800 cm2
1 x 14x12” 1000 cm²
2 x 14x10” 1600 cm²
80 mm
100 mm
100 mm
125 mm
125 mm
125 mm
2 x 125 mm
2 x 125 mm
100 mm
125 mm
125 mm
150 mm
150 mm
150 mm
2 x 150 mm
2 x 150 mm
3) BLOWER OUTLETS
90° turns with flexible ducts directly from
blower outlets should be avoided at all costs
as they introduce severe restrictions in the
air-flow.
All WEBASTO blowers (except on 24000
BTU models) can be rotated through 45°
steps so as to obtain a straight-line outlet
from the blower. This facility should be used
whenever possible.
See also drawing to the right.
4) TRANSITION BOXES
Transition boxes behind supply air-grilles
essentially serve the following purpose :
Serve as an expansion volume for the air-
flow to be reduced in velocity and therefore
reduce air noise when crossing the outlet
louvres.
It follows therefore that the depth of the tran-
sition box is an important factor to allow dis-
persion of the air-flow
The table to the right gives the necessary
information as to the minimum dimensions
advisable for such transition boxes.
5) RETURN GRILLE OFFSET
It is best to avoid placing a return air grille
directly opposite the finned coil surface of an
air-handler. This will inevitably allow propa-
gation of direct blower-motor noise through
the grille.
Always try to offset the grille so as to chi-
cane the return air to the coil inlet.
This will lower direct noise propagation in a
significant manner.
AIR FLOW
AIR FLOW
BLOWER ROTATED TO
MINIMZE FRICTON LOSSES
HH
DUCT DIAM. MINIMUM VALUE OF “H”
80 mm 100 mm
100 mm 120 mm
125 mm 140 mm
150 mm 165 mm
TRANSITION BOX INFORMATION Deflection curve for longitudinal
entry transition boxes
NB : For duct lengths over 1.80 ml, it may be possible to use the nominal duct diameter (for example 100 mm - 6000 BTU
model), if instead of spiral type flexible ducts, rigid perfectly smooth interior ducts are used.
ROTATABLE BLOWER OUTLETS

Operation/Installation Manual - WBCC Series - Page : 11
Operation/Installation Manual - WBCC Series - Page : 11
Edition dated 1st January 2004
10 - W I R I N G D I A G R A M S
DIPSWITCH SELECTOR
DISPLAY CABLE CONNECTOR
EXTERNAL AIR TEMP. SENSOR EVAP. COIL TEMP. SENSOR
SEAWATER PUMP 230V
SUPPLY
GND
BLOWER
REVER. CYCLE
VALVE
HP SAFETY SWITCH
C
R
S
RUN
CAPAC.
TERMINAL
STRIP
230V AC
230V
HP BP
COMP1
VALVE
FAN
COMP1
FAN
VALVE
PUMP1
GND
PUMP1
HARD
START
CAP.
10.1 -Wiring diagramWBCC 5000 TO 16000 BTU (Rotary Comp.) - single phase
1234
OPEN
ATT. DIPSWITCH SETTINGS
BLACK = PUSHED DOWN

Operation/Installation Manual - WBCC Series - Page : 12
Operation/Installation Manual - WBCC Series - Page : 12
Edition dated 1st January 2004
RUN
CAPAC.
BLOWER
REVER. CYCLE
VALVE
HP BP
C
R
S
SEAWATER PUMP 230V
SUPPLY
GND
GND
DIPSWITCH SELECTOR
DISPLAY CABLE CONNECTOR EXTERNAL AIR TEMP. SENSOR EVAP. COIL TEMP. SENSOR
BP HP
230V AC
230V
COMP1
VALVE
FAN
COMP1
PUMP1
FAN
VALVE
PUMP1
TERMINAL
STRIP
HARD
START
CAP.
10.2 - ELECTRICAL WIRING - WBCC 24 TO 30 - SINGLE-PHASE
1234
OPEN
ATT. DIPSWITCH SETTINGS
BLACK = PUSHED DOWN

DIPSWITCH SELECTOR
RUN
CAPACIT.
START
CAPAC.
START RELAY
52
1
R
C
S
BLOWER
REVER. CYCLE
VALVE
HP SAFETY
SWITCH
SEA-WATER PUMP
TERMINAL STRIP
230 V AC
SUPPLY
PUMP1 VALVE FAN COMP1
230V AC
230V
FAN
COMP1
HP
BP
PUMP1
VALVE
GND
DISPLAY CABLE CONNECTOR
EXTERNAL AIR TEMP. SENSOR
EVAPORATOR COIL TEMP. SENSOR
Operation/Installation Manual - WBCC Series - Page : 13
Operation/Installation Manual - WBCC Series - Page : 13
Edition dated 1st January 2004
10.3 - ELECTRICAL WIRING - WBCC 7 TO 16 - 1 PHASE - PISTON COMPR.
1234
OPEN
ATT. DIPSWITCH SETTINGS
BLACK = PUSHED DOWN
10.4 - WIRING SCHEMATICS - RUNNING
CAPACITORS FOR BLOWER MOTERS -
ECOFIT/EBM
PHASE
NEUTRAL
BROWN
WIRE CONNECTION
BLACK
BLACK
GND WIRE
CABLE FROM BLOWER MOTER
BLUE
230V SUPPLY
RUNNING CAPACITOR

WEBASTO-REPRESENTATIVES - WEBASTO-VERTRETUNGEN
Germany -Deutschland
Bayern, We asto AG
Baden-Würtem erg, Business Unit SPM
Hessen (teilweise), Niederlassung Süd
Saarland, Kraillinger Strasse 5, D-82131 St ckd rf
Rheinland Pfalz Tel. [phone], Fax [phone]
Australia- Australien
AUS-2229 NSW Caringbah Webast Pr duct Australia Pty. Ltd.
4/65 Captain C k Drive
Tel. [phone], Fax [phone]
www.webast .c m.au
Austria - Österreich
A-1230-Wien Webast Fahrzeugtechnik G.m.b.H.
J chen Rindt Strasse 19
Tel. [phone], Fax [phone]
www.webast .at
Baltic Republics - Baltiku
EE-11214 Tallinn AS KG Knutss n
Saeveski 12
Tel. [phone], Fax [phone]
www.kgk.ee
Belarus - Weißrussland
BY-220004 Minsk Falkat GmbH
8, Per. Obuwn j
Tel. [phone], Fax [phone]
Belgiu - Belgien
B-1070-Bruxelles S.A. Webast Pr duct Belgium N.V.
Allée H f Ter Vleestdreef 1
Tel. [phone], Fax [phone]
www.webast .be
Bosnia-Herzegovina - Bosnien-Herzegovina
SLO-1000 Ljubljana via Sl venia - Webast d. . . Sl venia
Bulgaria - Bulgarien
BG-1839 Sofia Rhea MP GmbH
B ris-Iliev-Strasse 17
Tel. [phone], Fax [phone]
www.rheagr up.c m
Canada - Kanada
USA-48430 Fenton via USA - Webast Pr duct N rth America, I
China
RC-Hong Kong Webast Pr duct China Ltd.
C nnaught R ad West R m 907-910, Yat Chau Int'l. Plaza, 118
Tel. [phone], Fax [phone]
www.webast china.c m
Croatia - Kroatien
SLO-1001 Ljubljana via Sl venia - Webast d. . . Sl venia
Czech Republic - Tschechien
CZ-140 00 Praha 4 Webast Therm s.r. .
Na Stri 1373/35
Tel. [phone], Fax [phone]
www.webast .cz
Den ark - Däne ark
DK-2610 Rødovre Webast Pr duct Danmark ApS
Islevdalvej 182
Tel. [phone], Fax [phone]
www.webast .dk
Finland - Finnland
FIN-01740 Vantaa Oy Kaha AB
Ansatie 2
Tel. [phone], Fax [phone]
www.webast .fi
France - Frankreich
F-91250 Tigery Webast Pr duct France S.A.S.
1, rue de la Haye, Z.A. Paris Sud II
Tel. [phone], Fax [phone]
www.webast .fr
Greece - Griechenland
GR-10442 Athen Ikar s S.A.
19, Dimitras Str.
Tel. [phone], Fax [phone]
www.ikar s.gr
Hungary - Ungarn
H-1135 Budapest Webast -Hungaria Kft.
Szent Lázló út 73
Tel. [phone], Fax [phone]
www.webast .hu
Iceland - Island
IS-210 Gardabaer Bilasmidurinn HF.
Hörgslundi 19
Tel. [phone], Fax [phone]
www.webast .c m
India - Indien
IND-201301 Noida (U.P.) Webast M thers n Sunr fs Ltd.
A 6, sect r 2. Distt.Gautam Budh Nagar
Tel. [phone], Fax [phone]
www.m thers n.c m
Italy - Italien
I-20080 Zibido San Giaco o Webast Pr duct Italy S.p.A. (I)
Via L ngar ne, 35
Tel. [phone], Fax [phone]
www.webast .it
Japan
J-739-0038 Higashi- Webast Japan C ., Ltd.
Hiroshi a-City 5-10 Taguchi Research C mplex
Tel. [phone], Fax [phone]
www.webast .c .jp
Kazakhstan - Kasachstan
KZ-480019 Al aty Kazachstan Truck Service Ltd.
M- n Atyrau-2, Geb. 111
Tel. [phone], Fax [phone]
Korea (Republic of)
ROK680-160 Na -Gu Ulsan Webast D ngHee C .,Ltd (WDH)
579-9 Y unyun-D n
Tel. [phone], Fax [phone]
www.d nghee.c .kr
Luxe bourg - Luxe burg
B-1070 Bruxelles via Belgium - S.A. Webast Pr duct Belgium N.V.
Macedonia - Mazedonien
SLO-1001 Ljubljana via Sl venia - Webast d. . . Sl venia
Mongolia - Mongolei
Ulaanbaatar M ng lia Therm systems Ltd.
P.P. B x 49/491
Tel. [phone], Fax [phone]
Netherlands - Niederlande
NL-8263 BC Ka pen Webast Pr duct Nederland B.V.
C nstructieweg 47
Tel. + 31 38 3371137, Fax + 31 38 3325181
www.webast .nl
New Zealand - Neuseeland
AUS-2229 NSW Caringbah via Australia - Webast Pr duct Australia Pty. Ltd.
Norway - Norwegen
N-1386 Asker K lberg, Caspary Maskin A/S
Røykenveien 70
Tel. [phone], Fax [phone]
www.webast .n
Poland - Polen
PL-05-092 Lo ianki Webast Petemar SP. z. . .
ul. Warszawska 205/219
Tel. [phone], Fax [phone]
www.webasto.pl
Portugal
E-08620 Sant Vicenç via Spain - Webast Pr duct Ibérica, S.L.
dels Horts (Barcelona)
Ro ania - Ru änien
H-1135 Budapest via Hungary - Webast -Hungary Kft.
Russia - Russland
RU-107 065 Moscow Webast Rus OOO
Altayskaya ulitsa 19-1a
Tel. [phone], Fax [phone]
www.webast .ru
Serbia and Montenegro - Serbien und Montenegro
SLO-1000 Ljubljana via Sl venia - Webast d. . . Sl venia
Slovakia - Slowakische Republik
SK-04012 Koice Webast Therm SK s.r. .
Pri Karásnej 1
Tel. [phone], Fax [phone]
www.webast .sk
Slovenia - Slowenien
SLO-1000 Ljubljana Webast d. . .
Cesta v. G rice 34
Tel. [phone], Fax [phone]
www.webast .si
South Africa - Südafrika
ZA-7780 Wetton, Cape Down Webast S uth Africa (Pty) Ltd.
7 Venus Way Hillstar Industria
Tel. [phone], Fax [phone]
www.webast .c .za
Spain - Spanien
08620 Sant Vicenç Webast Pr duct Ibérica, S.L.
dels Horts (Barcelona) P lig n Industrial La Barruana,
Avenida de T rrelles 12 y 14
Tel. [phone], Fax [phone]
www.webast .es
Sweden - Schweden
S-19181 Sollentuna/ KG Knutss n AB
Stockhol Hammarbacken 8
Tel. [phone], Fax [phone]
www.webast .se
Switzerland - Schweiz
CH-4123 Allschwil/BL Webast (Schweiz) AG
Hagmattstrasse 4
Tel. [phone], fax [phone]
www.webast .ch
Turkey- Türkei
TR-34510 Esenyurt - Istanbul Webast Term Sistemleri A.?.
Evren Ot Sanayi Sitesi
Tel. [phone], Fax [phone]
www.webast .net
Ukraine
UA-290069 Lviv Webast Elektr n GmbH
Schewtschenk Str. 315
Tel. [phone], Fax [phone]
www.webast .c m
United Kingdo - Großbritannien
GB-DN4 5JH South Yorkshire Webast Pr duct UK Ltd.
Webast H use, White R se Way,
D ncaster Carringt n
Tel. [phone], Fax [phone]
www.webast .c .uk
USA
USA-48430 Fenton Webast Pr duct N rth America, Inc
15083 N rth R ad
Tel. [phone], Fax [phone]
www.webast .us
Ham urg, Bremen We asto AG
Niedersachsen Business Unit SPM
Schleswig Holstein Niederlassung N rd
Nordrhein Westfalen Speicherstraße 3, D-17033 Neubrandenburg
Sachsen, Sachsen-Anhalt Tel. [phone], Fax [phone], 369
Mecklen urg-Vorpommern
Branden urg, Berlin
Hessen (teilweise)
Thüringen