Elektrobock PT712-EI User guide

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Page 1

DIGITAL THERMOSTAT

PT712-EIPT712-EI

FOR FLOOR HEATING

•including external sensor

•backup in case of voltage failure > 100 hours

•direct installation on junction box

•well-arranged backlit display VENUS switch design

MADE IN CZECH REPUBLIC

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DESCRIPTION

PT712-EI is a digital thermostat with a room and ﬂ oor sensor, specially designed for electric ﬂ oor heating control. The internal-external sensor combination enables the regulation of:

1) ﬂ oor temperature (external sensor) - suitable, for instance, for bathrooms where a warm ﬂ oor is desirable, irrespective of the room temperature;

2) room temperature (internal sensor) - when comfortable room temperature is required;

3) combined (both sensors) - the internal sensor scans the room temperature, while the

external one monitors the maximum ﬂ oor temperature; comfortable room temperature is required, however, with simultaneous monitoring of the ﬂ oor temperat

and laminated ﬂ oors).

(suitable for wooden

Another advantage is simple installation in the KU/KP68 junction boxes by means of the PLUG-IN system, as well as the possibility of setting 2 weekly programs with 6 temperature changes per day.

INSTALLATION AND LOCATION

Install the thermostat in a suitable place (minimum height of 1.2-1.5 m above the ﬂ oor) where its operation will not be affected by direct hot/cold air ﬂ ow, sunshine or other disturbing inﬂ uences. Do not mount the thermostat on an exterior wall either. In rooms with increased humidity (bathroom, kitchen), observe valid standards and install the thermostat as far from the bathtub, shower, basin or sink as possible. The external ﬂ oor sensor must be located in a ﬂ exible plastic tube embedded in the ﬂ oor, as near to the surface as possible. The tube must be sealed and protected against in-leak of building materials so that the ﬂ oor sensor can be replaced easily, if need be. It must not run parallel with power conductors! It can be extended to a maximum length of 30 metres. The installation can only be done by a properly qualiﬁ ed person! Disconnect power supply before installation!

1) Switch off the main circuit breaker.

2) Check that the junction box is placed parallel with the wall.

3) Separate the power part of the thermostat from its microprocessor (main) par t; see Fig. 1.

4) Pull the connecting terminals out of the thermostat rear part, see Fig. 2.

5) Connect conductors to the terminals acc. to the wiring diagram below, see Fig. 3.

6) Insert the terminals into the thermostat terminals and fasten the power part to the junction box, see Fig. 4 and 5.

7) Insert the main par t connector into the power part and push it; the metal springs must ﬁ t in the given holes, see Fig. 6 and 7.

8) Switch on the main circuit breaker; the thermostat is ready for operation. LCD backlight becomes active only after charging the backup battery (up to 24 hours).

9) Set the constant 4 (page 6) according to the load, this could cause an inaccurate display of the current temperature. Note: We recommend you test correct connection after installation, see the TEST function (page 7).

Wiring diagram:

(type CT04-10k, CYXY 2 x 0.5 mm, 10 k:, lenght 3 m, PVC plastic case)

When using the low tariff

Fig. 1

power part main part

* P= max. 2760 W

COM NO

HEATING

NTC 10k NTC 10k

L‘ = disconnected phase

COM NO

HEATING

connecting

terminals

PULLPULL

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Fig. 2 Fig. 3 Fig. 4

NO COM

PUSH the connecting

terminals in.

PULL out the connecting terminals.

Fig. 5

Screw the power part to

the junction box.

Connect according to the wiring diagram.

Fig. 6

Connector and holes

for metal springs.

DESCRIPTION OF LCD AND CONTROL BUTTONS

1, Current date (in the Prog mode, selection of number of days for programming) 2, Operating modes: OFF/PROG/AUTO/MANU/case=HOLIDAY 3, Current room temperature 4, Indication of room temp. measurement by the exter. sensor. 5, Heating on indication 6, Button lock indication 7, CLOC mode indication (current date and time setting) 8, Required temperature and current time display / listing of operating modes (this line is explained in detail with every mode) 9, Battery supply indication (in case of 230V/50Hz voltage failure, it is functional only after 1 day of operation, when the backup battery is charged!) 10, Indication of setting the external sensor as the ﬂ oor one 11, Anti-freeze temperature of 3 °C

Fig. 7

PUSH the main part

onto the

power part.

button: short press = opens the main menu and conﬁ rmation (ENTER) long press (approx. 3 sec.) = back from the main menu

/ button:

basic mode = opens info main menu =browse and set current values

simultaneous press of the buttons (in basic mode) = key lock simultaneous press of the buttons (in basic mode) = key unlock simultaneous press of the buttons (in main menu) = return to basic mode

Note: The LCD backlight is activated by pressing any button!

and

and /

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OPERATING MODES

By pressing any button, you activate the display backlight (if the backlight is not working, batteries are not charged and it is necessary to recharge the thermostat about 1 days). Next, pressing the

button brieﬂ y, you enter the main menu, in which you can choose

the operating modes.

AUTO

The thermostat works according to the preset weekly program. Press the

the / buttons. Press

button and choose the AUTO mode with

to conﬁ rm.

MANU

(default setting of 21°C)

The thermostat works according to the preset temperature, which remains constant until the next manual change.

Press the

button and choose the MANU mode with the

/ buttons. Press

to conﬁ rm.

OFF

The thermostat is switched off until the next manual change. Press the

button and choose the OFF mode with the

/ buttons. Press

to conﬁ rm.

HOLIDAY

The thermostat maintains the preset temperature until the given date and time. When the preset period expires, it returns to the AUTO or MANU mode automatically.

Press the the / buttons. Press Press the / buttons. Press The temperature value ﬂ ashes on the LCD. Set the desired temperature with the / buttons and press it; next, set the hour, minute, day, month and year when your holiday ends; conﬁ rm each setting by pressing After setting, the device automatically switches to the HOLIDAY mode within 1 minute! The holiday end date appears on the display!

button and choose the AUTO or MANU mode with

button again and choose the mode with the

to conﬁ rm.

to conﬁ rm

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CLOC

Setting the current date and time.

Press the the / buttons. Press The current hour value ﬂ ashes on the LCD. Set the current hour and conﬁ r m it by pressing the current date appears; again, set the current day, month and year with the / buttons. Conﬁ rm each setting by pressing

button and choose the CLOC mode with

to conﬁ rm.

then, set the minutes and seconds; next,

PROG

Setting of weekly programs (2 weekly programs are available, each with 6 changes per day).

Press the the / buttons. Press

P1 (the ﬁ rst weekly program) ﬂ ashes on the LCD; press

The programmed day number ﬂ ashes on the LCD, choose one of the options with the / buttons (you can program “day after day”, or Mon-Fri, Sat-Sun or Mon-Sun). Press ﬁ rm your choice. The display shows U1 for setting the ﬁ rst temperature change; set the temperature with the / buttons and conﬁ rm with the the / buttons and conﬁ rm with the The display shows U2 for setting the second temperature change. Follow the procedure for the ﬁ rst temperature change. In this way, you can set up to 6 temperature changes per day. To return to the basic mode, press the simultaneously.

button and choose the PROG mode with

to conﬁ rm.

button. Set the switching time with

and / buttons

to conﬁ rm it;

to con-

button again.

CONST

Setting of the regulation parameters.

Press the buttons. Press

button and choose the CONST mode with the /

to conﬁ rm it. The ﬁ rst parameter appears on the LCD.

HYSTERESIS

The hysteresis can be set from 0.1 to 5 °C. If, for example, the hysteresis is 1 °C and the required temperature is 20 °C, the thermostat switches off at 20 °C and switches on again at 19 °C.

Set the pertinent value with the

/ buttons and press

to conﬁ rm.

MINIMUM SWITCH-ON TIME IN HYSTERESIS

Here, you can set the minimum switch-on time of the heating device in hysteresis in minutes. It can be set within the range 1 to 5 minutes. Set the pertinent value with the

/ buttons and press

to conﬁ rm.

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EXTERNAL SENSOR SELECTION

Make your choice with the / buttons according to the application type and press

to conﬁ rm.

- - - The external sensor, if connected, measures the temperature

at the point of location (suitable, for instance, for bathrooms,

where you wish to have a warm ﬂ oor irrespective of the room temperature);

This use of the sensor is indicated by the sign on the LCD.

15…99,5°C The external sensor, if connected, monitors the ﬂ oor

temperature; the maximum permissible temperature is set for the ﬂ oor heating (you regulate with the room

temperature, monitoring the ﬂ oor temperature at the same time).

The ﬂ oor (monitoring) sensor is indicated by the sign on the LCD.

If the preset limit temperature is exceeded, the thermostat is switched off irrespective of the room temperature, and the STOP message appears on the LCD. Once the external sensor temperature drops by 0.5 °C, the heating device is switched on again. If the sensor is not connected or it is defective, the C2.Err error message appears on the LCD.

After connecting the external sensor, it is NECESSARY

to RESET the device (see parameter 5)!

SELECTION THE POWER OF CONNECTED DEVICE

Set the input of the connected device in watts. Can be selected in the range from 0 to 2700 W in steps of 100 W, maximum power is 2760 W. Choosing this constant is achieved more accurate regulation. For a given power starts automatic calibration of the thermostat.

Set the value by / buttons and press the

Use the option 0 for : boiler, thermoelectric valve, contactor, etc. (for input power less than 100 W).

FIRMWARE VERSION / DEFAULT SETTING RECOVERY

Information on the ﬁ rmware version. If you keep pressing the

button (approx. 3 sec), the RESET message appears brieﬂ y

on the LCD, and the thermostat recovers the default setting!

You can exit the CONST mode at any time by simultaneously pressing the buttons (return to the basic mode).

and /

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OTHER FUNCTIONS

INFO

By pressing the / buttons in the basic mode, you can view the following information:

REQUIRED TEMPERATURE

In the basic mode, press the the required temperature value for the current operating mode (it can be changed with the / buttons; in the AUTO mode, the change is short-term – until the next change in the program; in the MANU mode, the change is permanent). With another press of the

/ buttons. The LCD shows

button, you can switch to:

SELECTED PROGRAM NUMBER - in the AUTO mode only

This is used for quick change of the program selected in the AUTO mode. If both P1 and P2 programs are preset, they can be changed, after a week for example, with the / buttons.

With another press of the

button, you can switch to:

OPERATING HOURS

The LCD shows the operating hour value of the heating device. You can clear it by pressing the button.

With another press of the

button, you can switch to:

TEST

The LCD shows the TEST message, which can be switched to the LCD test on/off with the / buttons (the output relay will be switched on/off several times).

We recommend using this function for the ﬁ rst use of the thermostat to check its correct connection!

With another press of the if the external sensor is connected as the ﬂ oor (monitoring) one:

button, you can view prior information

CURRENT TEMPERATURE OF THE FLOOR SENSOR

The LCD shows the current temperature value of the ﬂ oor sensor.

To return to the basic mode, keep pressing the

button (for approx. 3 sec)!

LOCK

In the basic mode, simultaneously press the key sign on the LCD). Unlocking can be done by simultaneously pressing the buttons.

and buttons, the buttons will lock (the

and

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DIGITAL THERMOSTAT PT712-EIPT712-EI

Used for the control of electric ﬂ oor heating (heating cables, mats, foils). It enables regulation according to the room temperature with possible ﬂ oor temperature monitoring. Using the thermostat, you can reduce heating costs and, at the same time, achieve thermal comfort at the given time.

Properties:

 2 weekly programs with 6 temperature

changes per day

 backlit display  HYSTERESIS setting option  heating source minimum switch-on time

setting

 operating modes:

AUTO/MANU/OFF/HOLIDAY

The PLUG-IN system = quick and easy installation. The thermo-

stat is divided into the power part and the main microprocessor part, which can be connected by simple insertion of the interconnecting terminals. The input conductors (or external sensor) are connected to the power part terminals and fastened to the junction box; then you can simply ﬁ nish the installation by inserting the main part onto the power part.

Dimensions:

 maximum ﬂ oor temperature limit value

setting

 quick change of the required temperature  operating hours information  child lock – locking of keys  backup in case of voltage failure for

more than 100 hours

 simple installation (PLUG-IN system)  elegant design of the VENUS switch series

External sensor:

included in the package

type CT04-10k, CYXY 2 x 0.5 mm, 10 k :, length 3 m, PVC plastic case

Another advantage:

The thermostat can be located in the multiple frame of the

VENUS design.

WARRANTY CERTIFICATE

(a 2-year warranty is granted for the product)

Product number:

Checked by:

Date of sale:

Shop stamp:

LEAD FREE

in compliance with RoHS

In case of warranty or post-warrant service, send the product to the manufacturer’s address.

Power supply 230 V/ 50 Hz Number of adjustable temp. 6 different temp. per every day Hysteresis 0.1 to 5°C Minimum program time 10 minutes Adjustable temp. range +3°C to 99.5°C Temperature setting by 0.5°C Minimum indication step 0.1°C Measurement accuracy ± 0,5°C Backup battery more than 100 hours Protection class IP20 Protection rate II Output max.12A (potential-free contacts)

Working temperature 0°C to +40°C

Technical parameters

MADE IN CZECH REPUBLIC

ELEKTROBOCK CZ s.r.o.

Blanenská 1763 Kuřim 664 34 Tel.: +420 541 230 216

www.elbock.cz

Elektrobock PT712-EI User guide

Specifications and Main Features

Frequently Asked Questions

User Manual