Seltron ACC30 Manuale utente

Constant temperature controller

Festwertregler

Regulator konstantne temperature

ACC30, ACC40

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User manual

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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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 .........................................................................................................................................26

Operation mode by sensor Failure.....................................................................................................26

Controller installation...............................................................................................................................27

Controller’s electric connection...........................................................................................................27

Technical data.............................................................................................................................................29

Disposal of old electrical & electronic equipment........................................................................30

Hydraulic schemes ....................................................................................................................................116

CONTENTS

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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, conﬁrmation 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.

6 7

6 | User manual

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 ﬁrst time, the software

version is shown. Next, the ﬁrst step appears on the screen.

Using buttons and you select the

required language. Press the button to

conﬁrm the selected language.

STEP 2 - HYDRAULIC SCHEME SELECTION

Next, you select a hydraulic scheme for the

controller function. Move between schemes by

means of buttons and .

Conﬁrm the selected scheme by pressing the

button .

INITIAL CONTROLLER SETUP

STEP 1 - LANGUAGE SELECTION

After selecting the language, the controller

requires conﬁrmation of the selection by

pressing the button .

If you accidentally selected the wrong

language, go back to reset the language by

pressing button .

After you selected the scheme, the controller

requires conﬁrmation of the selection by

pressing the button .

If you accidentally selected the wrong scheme,

go back to reset the scheme by pressing

button .

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User manual

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 .

Selected mixing valve opening direction can be later changed with service

parameter S1.4.

Selected hydraulic scheme can be later changed with service parameter S1.1.

After you selected the correct direction, the

controller requires conﬁrmation 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 .

INITIAL CONTROLLER SETUP

8 | User manual

EN GRAPHIC LCD DISPLAY

All important data of controller operation are shown on the graphic LCD display.

DESCRIPTION AND DESIGN OF THE MAIN DISPLAY

Display of information on the screen:

The controller mode, notiﬁcations 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

sensors 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 speciﬁc data display to appear after you stop

using the keyboard then select the desired data with buttons and .

Conﬁrm the selected screen by pressing the button for 2 seconds.

When you press the button for 2 seconds, then the display of the

temperature will change from one to two rows and vice versa. On the two

line temperature display, the measured temperature is displayed in the ﬁrst

row and the required or calculated temperatire in the second row.

Notiﬁcations

and warnings.

Controller mode. Controller mode.

Temperature, protection functions

and overview of other data.

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User manual

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.

Boiler return temperature.

T1, T2 Temperature measured by the sensor T1, T2.

10 | User manual

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.

Symbol Description

Notiﬁcations

In case of exceeding the maximum temperature or activation

of protection function, the controller indicates the event with

ﬂashing 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 notiﬁcations.

Warning

In the event of sensor failure, the controller indicates the failure

with ﬂashing 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

Short manual

Short manual for use of the controller.

Controller version

Overview of controller type and software version.

Notiﬁcations

Log of exceeded maximum temperatures and activated protection

functions. By pressing the buttons and move through the list of

notiﬁcations. Press to exit the list.

Warnings

Log of sensors, pump or ﬂow meter failures.

By pressing the buttons and move through the list of warnings.

Press to exit the list.

Delete warning and notiﬁcation logs

By pressing the button will erase notiﬁcation 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.

DESCPRIPTION OF SYMBOLS

ON THE DISPLAY

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