Tech Controllers L-7 User manual

user’s manual
L- 7
EN
www.tech-controllers.com
user’s manual
L-7

2
User’s manual

3
L-7
Table of contents
I. Safety 4
II. Description of the device 5
II.a) Principle of operation 5
III. Installation 6
III.a) First start-up 7
IV. Main screen view and description 12
V. Controller function 14
V.a) Block diagram of the main menu 14
V.b) Screen view 14
V.c) Manual operation 15
V.d) Zones 15
V.e) Pump 16
V.f) Language 16
V.g) Display contrast 16
V.h) Fitter’s menu 17
V.i) Software version 19
VI. Protections and alarms 20
VII. Software update 21

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User’s manual
I. Safety

carefully. Not obeying the rules included in this manual may lead to personal injuries
or controller damage. The user’s manual should be stored in a safe place for further
reference. In order to avoid accidents and errors it should be ensured that every person
using the device has familiarized themselves with the principle of operation as well as

make sure that the user’s manual is there with the device so that any potential user has
access to essential information about the device.
The manufacturer does not accept responsibility for any injuries or damage resulting from

this manual to protect their lives and property.
WARNING
 High voltage! Make sure the regulator is disconnected from the mains before performing

 
            
electric motors as well as the insulation resistance of the cables.
 The regulator should not be operated by children.
WARNING
 The device may be damaged if struck by a lightning. Make sure the plug is disconnected
from the power supply during storm.
 
 
its cables. The user should also check if the controller is properly mounted and clean
it if dusty or dirty.
Changes in the merchandise described in the manual may have been introduced
subsequent to its completion on February 28th 2016. The manufacturer retains the right
to introduce changes to the structure. The illustrations may include additional equipment.

We are committed to protecting the environment. Manufacturing electronic
devices imposes an obligation of providing for environmentally safe

entered into a register kept by the Inspection For Environmental Protection.
The crossed-out bin symbol on a product means that the product may not
be disposed of to household waste containers. Recycling of wastes helps to
protect the environment. The user is obliged to transfer their used
equipment to a collection point where all electric and electronic components
will be recycled.
WARNING

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L-7
II. Description of the device
 
         

wide range of functions:
 - possibility of controlling up to 22 thermostatic actuators via 8 room sensors (C-7p):
 - 3 room sensors may support up to 12 actuators (the maximum of 4 actuators per
one sensor);
 - 5 room sensors may support up to 10 actuators (the maximum of 2 actuators per
one sensor)
 - one 230V output for a pump
 - voltage-free contact (e.g. for controlling the heating device)
 - possibility of connecting ST-507 Internet or WiFi RS to control the system via the
Internet
 - possibility of connecting M-7 wireless control panel with RS communication
 - possibility of connecting ST-61v4 or ST-431n valve module
 - possibility of updating the software via USB
Controller dimensions
II.a) Principle of operation
L-7 controller decides if a given zone needs to be heated on the basis of current temperature
value sent by the room sensor (C-7p) as well as the individual operation algorithm of the
zone.
 
be used e.g. for controlling the heating device.
          
controller activates CH pump.
The signal from each zone is transmitted to L-7 controller via room sensors.
In each zone the user installs wired valve actuators STT-230/2.

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User’s manual
III. Installation

WARNING
Risk of fatal electric shock from touching live connections. Before working on

switched on.
1. Cover (it should be removed to connect the devices to be controlled)
2. Display
3. Buttons
L-7 controller may be installed as a free-standing device or as a panel mountable on a wall.
The controller may be installed on a DIN strip
12
3

7
L-7
III.a) First start-up
              

1. Connect L-7 with all the subordinate devices to be controlled
2. Switch on the power supply and check if the devices work.
3. Activate the Internet module.
4. Set current time and date.

Step 1: Connect L-7 with all subordinate devices to be controlled
Remove the cover and connect the wires following the clues on the connectors and the
diagrams presented below.
Follow this order while connecting:
- all the necessary valve actuators ST-230/2 (connectors 1..8)
- Internet module (using RS cable)
- pump
- an additional device
III. Installation

WARNING
Risk of fatal electric shock from touching live connections. Before working on

switched on.
1. Cover (it should be removed to connect the devices to be controlled)
2. Display
3. Buttons
L-7 controller may be installed as a free-standing device or as a panel mountable on a wall.
The controller may be installed on a DIN strip

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User’s manual
10 11 12 13 14 15 16 17
RS
1 2 3 4 5 6 7 8
9
18
RS

9
L-7
urządzenie
grzewcze
1 2 3 4
5 6 7 8
910 11 12 13 14 15 16 17
18
RS
RS
RS
RS
RS
lub
WiFi
ST-431n
ST-507
Pictorial diagram presenting wiring and communication with other devices in the system

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User’s manual
STEP 2: Switch on the power supply and check if the devices work

Use Manual operation function in order to check if particular devices work properly. Use
▲ and ▼ to select the device and press MENU – the device should switch on. Follow this
procedure to check all the devices.
STEP 3: Activate the Internet module
L-7 external controller is compatible with ST-507 and WiFi RS.
WiFi RS uses WiFi wireless network whereas ST-507 needs to be connected to a router with
RJ45 network cable.
Connection diagram for ST-507 Internet module.
L-8
WiFi RS
ROUTER
Connection diagram for WiFi RS.
ST-507 Internet module or WiFi RS should be connected as illustrated in the diagrams

steps are described in detail in the instruction manual for the Internet module.
L-8
ST-507
ROUTER

11
L-7
NOTE
The user should enable the Internet module to connect with data servers listening
on TCP/2000 port. Most computer networks are protected by various software
          

computer network administrator.
STEP 4. Set current time and date



current temperature value. The easiest way is to use C-7p temperature sensor.
 
apart from sending the current temperature readings. It serves as a control panel enabling
             
schedules etc.
Room temperature sensor C-7p:
The room sensor should be activated in a particular zone.
Plug the sensor cable into the connector assigned to the

WARNING

It is possible to set individual pre-set temperature value and weekly schedule for each room
         
menu (Main menu/Zones) and via www.emodul.eu (using ST-507).
Room regulator M-7 (control panel):

connect it to L-7 controller using RS cable and select

TECH regulator.

12
User’s manual
IV. Main screen view and description
The user navigates in the menu structure using the buttons located next to the display
1. Display
2. ▲- „up” „plus” – it is used to view the menu options and increase the value while editing
           
zones parameters.
3. ▼- „down” „minus” - it is used to view the menu options and decrease the value
while editing parameters. During standard operation the button is used to switch between


5. EXIT button – it is used to exit the menu and cancel the settings
1
2
3
4
5

13
L-7
11. An icon indicating pump operation
2. An icon indicating that the additional contact is switched on
3. Current time
4. Time left until the manually set temperature in a given zone changes
5. Information about the type of current weekly schedule
6. Pre-set temperature in a given zone (backlit number in the zone bar – see: description
no. 12)
7. Current temperature of C-8-r sensor in a given zone (backlit number in the zone bar –
see: description no. 12)
8. Zone information:
The digit displayed indicates that the corresponding room sensor is connected and sends


▲ or ▼.
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8
7
4
65

14
User’s manual
V. Controller function

Fitter’s menu.
V.a) Block diagram of the main menu
V.b) Screen view
 In this submenu the user may adjust the main screen view:
 
temperature etc.
 Mixing valve screen – including mixing valve operation parameters.

15
L-7
V.c) Manual operation

and valve actuators) independently of the others in order to check if they operate properly.

V.d) Zones
           


the pre-set temperature by hysteresis value. When the temperature in all the zones is

Submenu of each zone:
V.d.1) OFF/ON


V.d.2) Pre-set temperature
           
function enables the user to change this value separately.
              


The main screen displays current pre-set temperature value and the time left (see: Main
screen description).
V.d.3) Weekly control


This weekly schedule is assigned to a given zone only. After the room sensor has been

may be adjusted by the user to individual needs.

16
User’s manual
1..5 schedules – global schedule
These schedules have universal settings for all zones and they cannot be edited in the
external controller (to introduce changes it is necessary to connect to the Internet via the
Internet module).
 
  

local schedule.
The type of weekly schedule assigned to a zone is displayed in the main screen (See: Main
screen description – screen area no. 9).
Edit

 
accuracy of 15 minutes). Separate temperature value is assigned to each time period. The
next step involves setting the temperature value to apply outside the time periods.
The last step involves choosing days of the week when the settings should apply.
Use ▲to edit the next day and press ▼ to select/deselect.
V.d.4) Calibration
Room sensor calibration should be performed while mounting or after it has been used

Calibration setting range is from -10C to +10C.
V.d.5) Hysteresis
      


             

V.e) Pump
L-7 controls the pump operation by activating it (after the delay time) if the temperature
                 
controller disables the pump.

of any zone drops below the pre-set value. Activation delay is used to ensure enough time
for the valve to open.
V.f) Language
This option is used to select the language version.
V.g) Display contrast
This option is used to adjust the display contras to individual user’s needs.

17
L-7
V.h) Fitter’s menu
              
additional controller functions.
V.h.1) Valve
L-7 external controller may also control an additional valve via a valve module (e.g. ST-
431N). The regulators communicate via RS communication but registration is necessary.

needs.
 Pre-set valve temperature

sensor.
 Registration

by entering the module number (given on the back side of the control module or in software
version screen).
 Valve status

necessary to register again.
 Temperature control
This parameter determines the frequency of water temperature measurement (control)
behind the CH valve. If the sensor indicates a change in temperature (deviation from the

to the pre-set temperature.
Opening time


adjusted to the value given on the actuator rating plate.
Single stroke
 

    
temperature to be reached.
Minimum opening


 Valve type
By means of this setting the user selects the type of controlled valve out of the following:
CH – selected if the user wants to control the CH circuit temperature.
             
     



18
User’s manual
 Weather-based control



in the controller menu.


             
corresponding pre-set temperature value using LEFT and RIGHT arrows.
Heating curve – it is a curve according to which the pre-set controller temperature is

on the basis of four pre-set temperatures for respective values of external temperatures.

            
accuracy and easiness of setting the course of this curve.
NOTE

is not available (Main menu-valve settings).
 Room regulator

Room regulator – this option is used to select the type of room regulator cooperating with
the valve. The following options are available:
 
- Standard regulator – a two-state regulator. This settings refers to the regulator connected
directly to the valve controlling module.




the set temperature of the valve will be introduced (function available only with TECH room
regulator).
Change of pre-set valve temp. – this setting determines by how many degrees the valve
temperature is to increase or decrease with a single unit change in room temperature (see:


 Return protection
This function enables the user to set the CH boiler protection against too cool water returning
           

 
user presets the minimum acceptable return temperature.

19
L-7
 Factory settings

 Valve removal
This option is used to delete the valve from the controller memory. Valve removal is used
e.g. at disassembling the valve or module replacement (re-registration of a new module
is necessary)
V.h.2) Internet module
             
and adjust certain parameters via the Internet. Such online control is possible only after
purchasing and connecting an additional module ST-5072.

select Registration. The controller generates a code which the user should enter on the
Internet website. Detailed description of the procedure is available in the Internet module
instruction manual.
Internet module is a device enabling the user remote control of the regulator via the
Internet. The user controls the status of all valves on the home computer screen.
           
     

they may be set manually. The procedure of obtaining these parameters is described in
detail in the instruction manual of the Internet Module
.
V.h.3) Time
This function is used to set current time.
V.h.4) Set date
This function is used to set current date.
V.i) Software version

the controller software version.

20
User’s manual
VI. Protections and alarms


a message informing about the detected problem.
Automatic sensor control


The alarm remains active until the fault is removed (the sensor battery or the sensor itself
is replaced) and alarm is deleted in the external controller
How to delete the zone alarm in the external controller
Select the zone in which the alarm occurred (indicated by the exclamation mark instead of
the number). Press EXIT – two options appear on the screen:
-Reset
The external controller re-attempts to communicate with the sensor (it may take up to


activates again.
-Deactivate
This option deactivates the zone altogether. It may be activated again by selecting Activate
in Main menu/Sensors/1..8 zones.
This alarm may also be deactivated via the Internet website. If the alarm is caused by

Fuse

WARNING
Higher amperage fuse should not be used as it may damage the controller.