Weinmann & Schanz ACC30 Manuale utente
ACC30, ACC40
ENG Constant temperature controller
DEU Festwertregler
ITA Regolatore di temperatura costante
FRE Régulateur de température constante
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CONSTANT TEMPERATURE CONTROLLER
ACC30, ACC40
Controllers ACC30, ACC40 are modern designed, microprocessor-driven devices made
with digital and SMT technology.
The controller are provided as a constant temperature controller with actuator designed
for heating applications. The most common use is to control the return temperature in the
boiler. Controller ACC40 besides controlling the actuator also controls the circulating pump.
For initial setup see Initial controller setup, page 6!
INTRODUCTION
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Contents
Introduction..................................................................................................................... 3
Appearance of the controller .......................................................................................... 5
Initial controller setup...................................................................................................... 6
Step 1 - Language selection................................................................................... 6
Step 2 - Hydraulic scheme selection ...................................................................... 6
Step 3 - Opening of the mixing valve...................................................................... 7
Graphic LCD display....................................................................................................... 8
Description and design of the main display............................................................ 8
Descpription of symbols on the display .......................................................................... 9
Controler mode symbols......................................................................................... 9
Temperature and other data symbols..................................................................... 9
Symbols for notices and warnings.......................................................................... 10
Display for help, notices and warnings........................................................................... 10
Menu entry and navigation ............................................................................................. 11
Menu structure and description ...................................................................................... 11
Temperature settings.............................................................................................. 13
Operation mode ..................................................................................................... 14
Manual mode:......................................................................................................... 14
Heating or cooling operation mode selector................................................................... 14
Basic settings ................................................................................................................. 15
Data overview................................................................................................................. 17
Controller parameter and auxiliary tools......................................................................... 18
Basic parameters.................................................................................................... 18
Service parameters ................................................................................................ 20
Factory settings ...................................................................................................... 23
Operation mode by sensor Failure ................................................................................. 24
Controller installation...................................................................................................... 25
Controller’s electric connection ...................................................................................... 25
Technical data................................................................................................................. 26
Disposal of old electrical & electronic equipment ........................................................... 27
Notes .............................................................................................................................. 28
Hydraulic schemes ......................................................................................................... 107
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USER MANUAL
APPEARANCE OF THE CONTROLLER
1. Graphic display
2. Clutch for manual operation.
3. Button Return back.
4. Button Move to left, decreasing.
5. Button Menu entry, conrmation of selection.
6. Button Move to right, increasing.
7. Button Help.
8. LED indication - valve rotation right.
9. LED indication red - fault, error.
10. LED indication - valve rotation left.
1
2
3
4
5
8
9
10
6 7
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INITIAL CONTROLLER SETUP
Constant temperature controllers are equipped with an innovative solution, which allows
initial setup of the controller in only three steps.
When you connect the controller to the power supply for the rst time, the software version
is shown. Next, the rst step appears on the screen.
STEP 1 - LANGUAGE SELECTION
Using buttons and you select the required
language.
Press the button to conrm the selected language.
After selecting the language, the controller requires
conrmation of the selection by pressing the
button .
If you accidentally selected the wrong language, go
back to reset the language by pressing button .
STEP 2 - HYDRAULIC SCHEME SELECTION
Next, you select a hydraulic scheme for the controller
function. Move between schemes by means of but-
tons and .
Conrm the selected scheme by pressing the
button .
After you selected the scheme, the controller re-
quires conrmation of the selection by pressing the
button .
If you accidentally selected the wrong scheme, go
back to reset the scheme by pressing button .
Selected hydraulic scheme can be later changed with service parameter
S1.1.
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STEP 3 - OPENING OF THE MIXING VALVE
Press icon which indicates the proper direction of
mixing valve opening direction. Between icons you
can move with buttons and .
After you selected the correct direction, the controller
requires conrmation of the selection by pressing the
button .
If you accidentally selected the wrong mixing valve
opening direction, go back to reset the the selection
by pressing button .
Selected mixing valve opening direction can be later changed with service
parameter S1.4.
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GRAPHIC LCD DISPLAY
All important data of controller operation are shown on the graphic LCD display.
DESCRIPTION AND DESIGN OF THE MAIN DISPLAY
Notications
and warnings.
Controller mode. Controller mode.
Temperature, protection functions and over-
view of other data.
Display of information on the screen:
The controller mode, notications and warnings are displayed in the upper third of the
display. For switching between basic display and display of the hydraulic scheme use the
button .
To check the temperature and other data, use buttons and . The number of sen-
sors and other data, which can be listed on the display, depends on the selected hydraulic
scheme and controller settings.
If you would like to have a specic data display to appear after you stop using
the keyboard then select the desired data with buttons and . Conrm
the selected screen by pressing the button for 2 seconds.
When you press the button for 2 seconds, then the display of the tem-
perature will change from one to two rows and vice versa. On the two line
temperature display, the measured temperature is displayed in the rst row
and the required or calculated temperatire in the second row.
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DESCPRIPTION OF SYMBOLS ON THE DISPLAY
Symbol Description
Heating.
Cooling.
Automatic mode.
Stand by.
Manual mode.
CONTROLER MODE SYMBOLS
TEMPERATURE AND OTHER DATA SYMBOLS
Symbol Description
Measured temperature.
Set point or calculated temperature.
Supply temperature.
Boiler temperature.
Stand- pipe temperature.
Stand- pipe temperature.
Boiler return temperature.
T1, T2 Temperature measured by the sensor T1, T2.
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DISPLAY FOR HELP, NOTICES AND WARNINGS
By pressing the button the screen for help, messages and warnings will be oppened in
which the following icons are available.
Short manual
Short manual for use of the controller.
Controller version
Overview of controller type and software version.
Notications
Log of exceeded maximum temperatures and activated protection functions.
By pressing the buttons and move through the list of notications.
Press to exit the list.
Warnings
Log of sensors, pump or ow meter failures.
By pressing the buttons and move through the list of warnings.
Press to exit the list.
Delete warning and notication logs
By pressing the button will erase notication and warning log. All sensors
that are not connected will be deleted from the list of failures.
Note: Failures of sensors that are required for controller operation can not
be deleted.
Symbol Description
Notications
In case of exceeding the maximum temperature or activation of pro-
tection function, the controller indicates the event with ashing symbol
on the display. If the maximum temperature is no longer exceeded or
if the protection function is turned o, a lited symbol indicates a recent
event.
Press to open the screen to check notications.
Warning
In the event of sensor failure, the controller indicates the failure with
ashing symbol on the display. If the issue is resolved or no longer
present, a lited symbol indicates a recent event.
Press to open the screen to check warnings.
SYMBOLS FOR NOTICES AND WARNINGS
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