Webasto WBCC 5 Operation And Installation Manual
Operation/Installation Manual - WBCC Series - Page : 1
Operation/Installation Manual - WBCC Series - Page : 1
Edition dated 1st January 2004
D
I
G
I
T
A
L
C
O
N
T
R
O
L
P
A
N
E
L
F
U
N
C
T
I
O
N
I
N
G
P
R
I
N
C
I
P
L
E
S
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
NNEEWW EELLEECCTTRROONNIICCSS -- 22000000 SSEERRIIEESS
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 V entilation .......................................................................................
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 ...............................
3
4
4
5
5
5
7
7
8
9
9
10
11
11
12
13
13
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 operation of the unit and attached accessories
(blowers, pumps, etc).
All WEBASTO air conditioning units are
sea-water cooled by means of an AC seawater 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 normal 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-temperature as measured by the display panel.
After a further delay of approx. 50 seconds 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 hermetic 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 condenser 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 seawater 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 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 blowercontrol (“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 values.
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 temperature :
The set-point temperature i.e. the temperature desired by the operator for blower operation directly connected to the TCC controller 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 setpoint key.
The display will return to normal room temperature 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 -
programmable 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
7
2
*
bb AA
HH1133..22
*
FF 33
UU223300
11CC0011
etc
PP112233
etc
*
dd 00
*
tt 11
*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 system into service.
To do so entrer programming mode with setpoint 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 follo wing 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 motorwindings 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 variation and still function within a normal
operating window, the TCC card is
equipped with a second temperature sensor 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 sufficient the micro-processor will stop compressor operation for pre-determined
intervals and will resume normal operation when coil temperature has moved
back to within normal operating values.
This feature is completely transparent to
the end-user without an error code display; 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 controls have been chosen so as to avoid interference with most TV models, the end-user
should be aware that in certain cases interference may occur with TV sets or other appliances.
In general it is therefore advisable to avoid
locating a WEBAST O 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 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.
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 explanation 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 displayed directly on the digital display by a
Operation/Installation Manual - WBCC Series - Page : 5
Operation/Installation Manual - WBCC Series - Page : 5
Edition dated 1st January 2004
Loading...