Regulus ACC30 CONSTANT TEMPERATURE ACTUATOR Installation Guide

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ACC30/ACC40

Installation and Operation Manual
CONSTANT TEMPERATURE ACTUATOR

CONSTANT TEMPERATURE ACTUATOR ACC30, ACC40

INTRODUCTION

Actuators ACC30, ACC40 are modern designed, microprocessor-driven devices made with digital and SMT technology.
The actuator is intended as a constant temperature controller with actuator designed for heating applications. The most common use is to control the return temperature in a boiler. Besides controlling the actuator, the ACC40 also controls a circulation pump.
For initial setup see Initial actuator setup, page 6!

USER MANUAL

APPEARANCE OF THE ACTUATOR

1. Graphic display
2. Switch 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.
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INITIAL ACTUATOR SETUP

Constant temperature actuators are equipped with an innovative solution, which allows initial setup of the controller in only three steps.
When you connect the actuator to the power supply for the first time, the software version is shown. Next, the first step appears on the screen.

STEP 1 – LANGUAGE SELECTION

| Using buttons and you select the required language.
Press the button to confirm the selected language.
After selecting the language, the actuator requires confirmation of the selection by ressing the button .
If you accidentally selected the wrong language, go back to reset the language by pressing button
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STEP 2 – HYDRAULIC VARIANT SELECTION

| Next, you select a hydraulic variant for the actuator function. Move between variants by means of buttons and
Confirm the selected variant by pressing the button .
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| After you selected the variant, the actuator requires confirmation of the selection by pressing the button .
If you accidentally selected the wrong variant, go back to reset the variant by pressing button
.

Selected hydraulic variant can be later changed in service parameter S1.1.

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 actuator 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
.
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Selected mixing valve opening direction can be later changed in service parameter S1.4.

GRAPHIC LCD DISPLAY

All important data of actuator operation are shown on the graphic LCD display.
DESCRIPTION AND DESIGN OF THE MAIN DISPLAY

Display of information on the screen:
The actuator mode, notifications and warnings are displayed in the upper third of the display. For switching between basic display and display of the hydraulic variant 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 variant and actuator settings.

If you wish 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 temperature in the second row.

DESCPRIPTION OF SYMBOLS ON THE DISPLAY

ACTUATOR MODE SYMBOLS

TEMPERATURE AND OTHER DATA SYMBOLS

SYMBOLS FOR NOTICES AND WARNINGS

In case of exceeding the maximum temperature or activation of protection function, the
actuator indicates the event with flashing symbol on the display. If the maximum temperature is no longer exceeded or if the protection function is turned off, a lit symbol indicates a recent event.
Press to open the screen to check notifications.
| Warning
In the event of sensor failure, the actuator indicates the failure with flashing symbol on the display. If the issue is resolved or no longer present, a lit symbol indicates a recent event.
Press  to open the screen to check warnings.

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.
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| Actuator 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 noti ication logs
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 actuator operation can not be deleted.

MENU ENTRY AND NAVIGATION

To enter the menu, press the button
Move in the menu using the buttons and , with the button you confirm your selection.
By pressing the button you return to the previous screen.

If some time no button is pressed, the backlight turns off or is reduced according to the setting.

MENU STRUCTURE AND DESCRIPTION

TEMPERATURE SETTINGS
In the menu only the temperatures are displayed, where you can adjust the set- point temperature for the selected hydraulic variant.
By pressing buttons , and you choose the required temperature, and a new window opens:

Adjust the set-point temperature with buttons , and confirm with button .
Exit the settings by pressing the button .

OPERATION MODE

In this menu the operation mode of the actuator is selected.
Select the operation mode with buttons ,  and confirm with button .
Exit the settings by pressing the button .

| Automatic operation
---|---
****| Actuator switch-off
| Heating or cooling operation mode selector
| Manual mode

MANUAL MODE:

This mode is used for testing the system or in case of malfunction. Every output can be manually activated or deactivated.
Move with the buttons and between the individual outputs R1, M- or M +. The output you want to change is selected by pressing the button . ON, OFF or AUTO starts flashing. Now the output can be changed using the buttons und . The setting is confirmed by  ressing the button .
Exit the setup menu with the button.

HEATING OR COOLING OPERATION MODE SELECTOR

Heating operation mode is active.
Cooling operation mode is active.

BASIC SETTINGS
The menu is intended for language, time, date and display settings

Language selection
The required user language is selected by pressing buttons , and confirmed with button .
Exit settings by pressing the button .

Time and date

You set the exact time and date in the following manner:
By pressing buttons and move among individual data. By pressing button you select data that you want to change. When data flashes, change it by pressing buttons , and confirm it with the button .
Exit the settings by pressing the button

Display settings
The following settings are available:
Time of active screen illumination and autoexit from menu to the main screen.
By pressing buttons , and you select and confirm required setting.
A new window opens:

You change settings by pressing buttons and confirm by pressing button .
Exit the settings by pressing button .

The change of settings is carried out when you confirm it by pressing button .

DATA OVERVIEW
In this menu there are icons to access the following data on actuator performance:

DIAGRAMS OF MEASURED TEMPERATURES BY DAYS FOR LAST WEEK
The graphical representation of the temperature profile in days, for each sensor.
There are records of the temperatures for the last week of operation.

DIAGRAMS OF MEASURED TEMPERATURES FOR CURRENT DAY
Detailed graphic overview of temperature in current day for each sensor.
How often are temperatures logged is set with parameter P1.3.

**OUTPUT OPERATION TIME COUNTERS***
Counters of actuator’s outputs operation time.

SPECIAL SERVICE DATA
Intended for diagnostics for technical service.

To view the sensor diagrams move with buttons and between the sensors. By pressing the button the date of displayed temperature begins to flash. Use buttons and to move between days.
Return to the temperature selection by pressing the button .
The range of the temperature display on the graph can be changed with the the button .
Exit the diagram overview by pressing the button .

SERVICE MANUAL

ACTUATOR PARAMETERS AND AUXILIARY TOOLS

All additional settings and adjustments of actuator performance are carried out by means of parameters. Basic and Service parameters are found on the second menu screen.

BASIC PARAMETERS
The basic parameters are listed in one group P1 – basic parameters.
Content of basic parameters is displayed as follows:

The setting is changed by pressing the button .
The value will start blinking and can be changed with the and . The setting is confir- med by pressing the button .
Move with buttons and to other parameters and repeat the procedure.
Exit the parameter settings by pressing the button .

Basic parameters:

Para- meter| Function| Parameter description| Setting range| Default
value
---|---|---|---|---
P1.1| TEMPERATURE ROUND UP| You set the accuracy of displayed temperatures.| 0- 0.1 °C
1-0.2 °C
2-0.5 °C
3-1 °C| 2
P1.2| AUT. SHIFT OF CLOCK TO DST/WINTER TIME| With the help of a calendar, the actuator carries out the automatic changeover between daylight saving time and winter time.| 0- NO 1- YES| 1
P1.3| PERIOD OF TEMPERAT. LOGGING| By setting this field you define how often the measured temperatures are saved.| 1 ÷ 30 min| 5
P1.4| TONES| By setting this field you define sound signals of the actuator.| 0- OFF
1-KEYPAD
2-ERRORS
3-KEYPAD AND ERRORS| 1
P1.5| ADVANCED TEMPERATU- RE SCREEN| Advanced screen means that while checking temperatures you can see measured and desired or calculated temperature.| 0- NO 1- YES| 1

SERVICE PARAMETERS
Service parameters are arranged in groups S1 – Basic parameters, S2 – Parameters for the heating circuit. With service parameters it is possible to activate or select many additional functions and adaptations of actuator performance. When you select the required parameter group in the menu, a new screen opens:

The setting is changed by pressing the button . Because the parameters are factory locked, a new screen appears. Here you have to enter the unlock code.

By pressing buttons and you mark the number which you want to modify and press the button .
When the number flashes you can modify it by pressing buttons , and confirm it by pressing button .
When the correct code is inserted, the actuator unlocks the parameters for editing and returns to the selected group of parameters. Return back from unlocking by pressing button .

Factory set code is “0001”.

Modify the value of the unlocked parameter by pressing buttons and The setting is confirmed by pressing the button . By pressing buttons , you can move to another parameter and repeat the procedure.
Exit parameter settings by pressing the button .

Change of service and functional parameters must be carried out only by a properly qualified expert.

Basic parameters :

Para- meter| Function| Parameter description| Setting range| Default
value
---|---|---|---|---
S1.1| HYDRAULIC VARIANT| Selection of hydraulic variant.| 01 – 04| 1
S1.2| CODE FOR UNLOC- KING THE SERVICE SETTINGS| This setting enables the change of code which is necessary to unlock the service settings.
WARNING! Keep new code in a safe place. Without this code it is impossible to change service settings.| 0000 ÷ 9999| 1
S1.4| ACTUATOR OPE- NING DIRECTION| Setting of actuator turning direction – valve opening.| 0- RIGHT 1- LEFT| 0
S1.5| DISPLAY ORIENTA- TION| Setting of display orientation.| 0 – REGULAR 0° 1- ROTATED 180°| 0
S1.9| ANTI-BLOCK FUN- CTION FOR PUMP AND VALVE| All outputs that haven’t been activated in the last week are activated on Friday at 20:00 for 60 seconds.| 0- OFF 1- ON| 0
S1.17| SENSOR T1 CALIB- RATION| Correction of displayed measured temperature for sensor T1.| -5 ÷ 5 K| 0
S1.18| SENSOR T2 CALIB- _ RATION| Correction of displayed measured temperature for sensor T2.| -5 -:- 5 K| 0

Parameters for heating circuit:

Para- meter| Function| Parameter description| Setting range| Default
value
---|---|---|---|---
S2.1| MIN. SETPOINT TEMPERATURE IN HEATING MODE| Setting of minimal allowed setpoint temperature in heating mode. Setpoint temperature cannot be adjusted lower than this parameter.| 5 + 70 °C| 50 °C
S2.2| MAX. SETPOINT TEMPERATURE IN HEATING MODE| Setting of maximal allowed setpoint temperature in heating mode. Setpoint temperature cannot be adjusted higher than this parameter.| 10 + 95 °C| 70 °C
S2.3| MIN. SETPOINT TEMPERATURE IN COOLING MODE| Setting of minimal allowed setpoint temperature in
cooling mode. Setpoint temperature cannot be adjusted lower than this parameter.| 10 + 25 °C| 15 °C
S2.4| MAX. SETPOINT TEMPERATURE IN COOLING MODE| Setting of maximal allowed setpoint temperature in
cooling mode. Setpoint temperature cannot be adjusted higher than this parameter.| 15 + 35 °C| 30 °C
S2.7| BACKLASH OF
MIXING VALVE| Setting of mixing valve running time to compensate the backlash of actuator and mixing valve assembly, which occurs by change of rotation direction.| 0 + 5 s| 1
S2.8| MIXING VALVE P – CONSTANT| Setting of mixing valve position correction intensity. Smaller value means shorter movements, higher value means longer movements,| 0,5 + 2,0| 1
S2.9| MIXING VALVE I – CONSTANT| Setting of mixing valve control frequency – how often mixing valve position is being controlled. Smaller value means low frequency, higher value means higher frequency.| 0.4 — 2.5| 1
S2.10| MIXING VALVE D – CONSTANT| Sensitivity of mixing valve for heating circuit temperature changes. Smaller value means low sensitivity, higher value means high sensitivity.| 0,4 + 2,5| 1
S2.13| BOILER CIRCULATI- ON PUMP – TIME OF BOILER TEMPERATURE INCREASE (SECONDS)| This function is used in control of return in solid fuel boiler. In the set time, the actuator determines temperature increase of the boiler by 2 °C. If an increase in the boiler is determined, the actuator activates the circulation pump.| 30 ÷ 900 seconds| 300
S2. 14| BOILER CIRCULATION PUMP OPERATION
1. STANDARD
2. PERMANENT| The setting informs about the operation of the circulation pump of the boiler:
1-STANDARD means that the pump is operating according to the minimum set temperature of the system, and when the difference between the boiler and return Hine is exceeded. 2-PERMANENT means that the pump is operating continuously when boiler temperature is higher than the set minimum set temperature of the boiler. This mode is used for pellet boilers when there is no sensor available in the thermal store.| 1-STANDARD
2-PERMANENT| 1
S2.15| BOILER CIRCULATION PUMP – SWITCH-OFF DELAY (SECONDS)| Setting of delayed circulation pump switch-off when there is no requirement for heating.| 30 ÷ 900 seconds| 300
S2.16| BOILER CIRCULA- TION PUMP – SWITCH-OFF DIFFERENCE T2-T1 (°C)| This setting determines the difference between sensors T2 and T1 which switches off circulation pump of the boiler.| 2.0 ÷ 8.0 °C| 3.0
S2.19| INITIAL VALVE MOVEMENT FROM OPEN POSITION (SECONDS)| Setting of initial valve movement duration when moving from open position. With this setting, the valve is moved to its control range (with immediate response) at startup of system.| 0 ÷ 30 seconds| 15
---|---|---|---|---
S2.20| INITIAL VALVE MOVEMENT FROM CLOSED POSITION (SECONDS)| Setting of initial valve movement duration when moving from closed position. With this setting the valve is moved to its control range (with immediate response) at startup of system.| 0 ÷ 30 seconds| 15

Parameters for heat source:

Para- meter| Function| Parameter description| Setting range| Default
value
---|---|---|---|---
S3.1| SYSTEM PROTEC- TION IN HEATING MODE – SENSOR T2| Setting of actuator response in case if T2 sensor is installed. If T2 temperature is lower than paremeter S3.2, the actuator fully closes the valve. If T2 is higher than parameter S3.3, the actuator fully opens the valve. 0 – Sensor T2 is not used for system protection.
1-Only minimal temperature is respected for system protection (parameter S3.2).
2-Only maximal temperature is respected for system protection (parameter S3.3).
3-Minimal and maximal temperature is respected for system protection (parameter S3.2 in S3.3).| 0- WITHOUT
1-TMIN
2-TMAX
3-TMIN IN TMAX| 0
S3.2| MIN. SYSTEM TEMPERATURE IN HEATING MODE| Setting of minimal temperature at which the actuator fully doses the valve.| 10 + 70 °C| 55 °C
S3.3| MAX. SYSTEM TEMPERATURE IN HEATING MODE| Setting of maximal temperature at which the actuator fully opens the valve.| 30 t 95 °C| 90 °C
S3.4| SYSTEM PROTEC- TION IN COOLING MODE – SENSOR T2| Setting of actuator response in case if T2 sensor is installed. If T2 temperature is lower than parameter S3.5, the actuator fully closes the valve. If T2 is higher than parameter S3.6, the actuator fully opens the valve. 0 – Sensor T2 is not used for system protection.
1-Only minimal temperature is respected for system protection (parameter S3.5).
2-Only maximal temperature is respected for system protection (parameter S3.6).
3-Minimal and maximal temperature is respected for system protection (parameter S3.5 in S3.6).| 0- WITHOUT
1-TMIN
2-TMAX
3-TMIN IN TMAX| 0
S3.5| MIN.SYSTEM TEMPERATURE IN COOLING MODE| Setting of minimal temperature at which the actuator fully doses the valve.| 10 ÷ 30 °C| 15
S3.6| MAX. SYSTEM TEMPERATURE IN COOLING MODE| Setting of maximal temperature at which the actuator fully opens the valve.| 20 ÷ 40 °C| 30

FACTORY SETTINGS
In the menu there are software tools to help with setting the actuator.
Actuator settings can be restored by selecting:

RESET OF ALL ACTUATOR PARAMETERS
Restores all settings of parameters P1, S1 (except S1.1) and S2.

RESET OF ALL ACTUATOR SETTINGS AND RESTART INITIAL SETUP
Restores all parameters to default values and starts the initial setup.

SAVE USER‘S SETTINGS
Save current parameter values as user‘s settings.

LOAD USER‘S SETTINGS
Load previously saved user‘s settings.

Before performing the commands stated above, the actuator requires a confirmation of the selected command.

OPERATION MODE BY SENSOR FAILURE

Heating circuit temperature sensor isn’t connected or has a malfunction.
Mixing valve opens.

TABLE: Resistance values for temperature sensors type Pt-1000

Temp. [°C]| Resist. [Ω]| Temp. [°C]| Resist. [Ω]| Temp. [°C]| Resist. [Ω]| Temp. [°C]| Resist. [Ω]
---|---|---|---|---|---|---|---
-20| 922| 35| 1136| 90| 1347| 145| 1555
-15| 941| 40| 1155| 95| 1366| 150| 1573
-10| 961| 45| 1175| 100| 1385| 155| 1592
-5| 980| 50| 1194| 105| 1404| 160| 1611
0| 1000| 55| 1213| 110| 1423| 165| 1629
5| 1020| 60| 1232| 115| 1442| 170| 1648
10| 1039| 65| 1252| 120| 1461| 175| 1666
15| 1058| 70| 1271| 125| 1480| 180| 1685
20| 1078| 75| 1290| 130| 1498| 185| 1703
25| 1097| 80| 1309| 135| 1515| 190| 1722
30| 1117| 85| 1328| 140| 1536| 195| 1740

INSTALLATION MANUAL

ACTUATOR INSTALLATION

Install the actuator indoors in a dry place, where it is not exposed to any strong electromagnetic fields.

ACTUATOR’S ELECTRIC CONNECTION

Each project with constant temperature actuator needs to be based exclusively on customer design and calculations and needs to be in compliance with valid rules and regulations. Pictures, diagrams, and text in this manual are intended solely as an example and the manufacturer does not accept any responsibility for them. If you use content of this manual as a base for your project, then you carry also full responsibility for it. Responsibility of publisher for unprofessional, wrong and false information and consecutive damage are explicitly excluded. We retain the right for technical errors, mistakes, changes and corrections without prior notice.
Installation of control devices should be done by an expert with suitable qualifications or by an authorised organisation. Before you deal with the main wiring, make sure that the main switch is switched off.
You have to follow the rules for low-voltage installations IEC 60364 and VDE 0100, valid laws for prevention of accidents, valid laws for environmental protection, and other national regulations.

1. Pt1000 temperature sensors can be inserted in a sheath or placed on a surface of a pipe. The supply includes besides the sensors also a heat conductive paste, a special sticker and tie wraps to fix the sensors onto the pipe surface.
2. Prior to fitting the actuator, the valve member shall be turned to the basic position where both the valve inlets are 50% open, and check whether this setting corresponds to the desired function of the valve in the system. Examples of valve adjustments, when installed on the left or right of a boiler, are shown in the picture under pos. II. The position of the flat spot on the valve shaft corresponds to the position of the valve member.
3. After the actuator is fitted, it is necessary to check the indication label of the valve member movement direction (red/blue). That label shall also correspond to the position and desired function of the mixing valve in the system (see the fig., pos. III). only at ACC40

INSTALLATION OF ACC30/ACC40 ACTUATOR ONTO A MIXING VALVE

1. check the valve member position adjustment, see point II on the preceding page

2. screw the actuator lock into one of the end openings in the cross on the mixing valve body; after the actuator is fitted, the actuator lock shall not protrude to places where cables run, if this happens, the actuator lock shall be re-positioned to another opening

3. fit the plastic adapter onto the valve shaft

4. fit the actuator onto the plastic adapter

5. fit the label “indication of the valve member movement direction” to its designated place in the actuator plastic cover and check its orientation, see point III on the previous page

6. insert the control wheel into the actuator and check the proper function of the mixing valve – when fitted, the control wheel should be in the middle of the valve movement range (in the middle between the blue and red colours on the label), and after switching to manual control it should be possible to turn the wheel clockwise and anticlockwise by 45° which fully opens one inlet and closes the other one and vice versa; when the check is finished, switch back to automatic control

7. make a tight connection between the valve and the actuator using the enclosed screw

8. fit the cover onto the control wheel

The position of the valve member shown by the flat spot on the valve D-shaft needn’t always correspond to the examples shown in the figures in this Manual. Valves from a different series or by another manufacturer may have a different setup. For this reason it is necessary to consult technical documentation of a specific mixing valve prior to installing the actuator on the mixing valve.

HYDRAULIC VARIANTS

ATTENTION! Installation diagrams show operation principles and do not include all auxiliary and safety elements! Observe the regulations in force when performing installations!

HYDRAULIC SCHEMATICS FOR ACC30 ACTUATOR

DIAGRAM 01

DIAGRAM 02

DIAGRAM 03

HYDRAULIC SCHEMATICS FOR ACC40 ACTUATOR

DIAGRAM 01

DIAGRAM 02

DIAGRAM 03

TECHNICAL DATA

General technical data – actuator
Dimensions (w x h x d) ………………………………………. 102 x 84 x 94 mm
Weight ………………………………………………………………… ~800 g
Housing …………………………………………………………….. PC – thermoplastic
Power supply …………………………………………………….. 230 V ~ , 50 Hz
Consumption ……………………………………………………… 0,5 VA
IP rating ……………………………………………………………. IP42 acc. to EN 60529
Safety class ……………………………………………………….. I acc. to EN 60730-1
Permissible ambient temperature ……………………….. 5 °C to +40 °C
Permissible relative humidity ……………………………… max. 85 % rH at 25 °C
Storage temperature …………………………………………… -20 °C to +65 °C
Accuracy of the installed clock …………………………… ± 5 min / year
Program class …………………………………………………….. A
Data storage without power supply ……………………… min. 10 years

Technical characteristics – sensors
Temperature sensor type …………………………………… Pt1000
Sensor resistance ……………………………………………….. 1078 Ohm at 20 °C
Temperature scope of use …………………………………. -25 ÷ 150 °C, IP32
Min. cross-sectional area of sensor cables …………… 0.3 mm
Max. length of sensor cables ……………………………… max. 10 m

IMPORTANT INFORMATION ON DISPOSAL IN COMPLIANCE WITH THE EUROPEAN

DIRECTIVE 2002/96/ES

Discarding old electrical and electronic equipment (valid for EU member states and other European countries with organized separate waste collection).

European Directive 2002/96/EC requires that the equipment bearing this symbol on the product and/or its packaging must not be disposed of with unsorted municipal waste. The symbol indicates that this product should be disposed of separately from regular household waste streams. It is your responsibility to dispose of this and other electric and electronic equipment via designated collection facilities appointed by the government or local authorities. Correct disposal and recycling will help prevent potential negative consequences to the environment and human health. For more detailed information about the disposal of your old equipment, please contact your local authorities, waste disposal service, or the shop where you purchased the product.

©2019 We reserve the right to errors, changes and improvements without prior notice.
Software V1.1r0
v1.0-11/2019

REGULUS spol. s r.o.
E-mail: sales@regulus.eu, obchod@regulus.cz
Web: www.regulus.eu, www.regulus.cz

References

• Regulus - Energy saving solutions

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