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4

Button

On the inside of the device, a button is located, used for coupling, restarting etc.

Opening the device

By pressing along the cover (as shown in the picture) it can be opened alongside the device.

LED status indicator

The LED indicates the status of the device.

Button press

Function

1 brief press

Restart

2 brief presses

Allow coupling for 5 minutes

10 sec long press Total reset
While holding the button for a total reset, the LED

flashes  red.  The  button  must  be  held  until  the

LED turns  green,  at which  point  the  total  rest  is

carried out.

Green, flashing quickly

The button has been pressed twice – wireless coupling is allowed

for 5 minutes (the LED only flashes for the first three seconds, not

the entire 5 minute duration).

Orange flash every 10 sec

Valve could not be detected (error code 4)

Red flash every 10 sec

Battery charge <5%; the motor is no longer actuated

status LED

Summary of Contents for CORA-HKT

Page 1: ...ying wireless signals 2 Wired connection 3 Battery powered operation 3 Initialisation run 3 Button 4 Opening the device 4 LED status indicator 4 Output variables 5 Error codes 5 Input variables 6 Prog...

Page 2: ...nsfer firmware The wireless range is around 1000 m outdoors and typically 30 m in buildings through approx 2 walls ceilings depending on thickness and material Up to 3 additional wireless devices can...

Page 3: ...pdated every 5 minutes Battery lifetime varies based on activity but typically lasts 3 years Initialisation run As soon as the HKT receives power it immediately carries out an initialisation run As su...

Page 4: ...g for 5 minutes 10 sec long press Total reset While holding the button for a total reset the LED flashes red The button must be held until the LED turns green at which point the total rest is carried...

Page 5: ...y opened position is defined by the initialisation run see page 3 Fully opened depends on the valve of the radiator Window contact Digital value Yes No Yes win dow closed Based on the room temperature...

Page 6: ...ly opened 100 fully closed Set position 0 100 The desired position of the valve can be set manually Helpful in case several HKTs in the same room regulate different radiators See programming exam ple...

Page 7: ...ad to the thermo stats attempting compensate for each other s temperatures by setting the valves into opposite po sitions one HKT might heat excessively while the other might not heat at all Several H...

Page 8: ...to constant tech nical advancement and further development We therefore reserve the right to make changes without prior notice 2023 Batteries 2x AA not included Battery lifetime varies based on batter...

Page 9: ...9...

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Page 11: ...considered EN 60730 1 2011 Automatic electrical controls for household and similar use Part 1 General requirements EN 61000 6 3 2007 Electromagnetic compatibility EMC Part 6 3 Generic standards Emissi...

Page 12: ...stallation instructions or incorrect maintenance 4 The guarantee will become void if repairs or actions are carried out by people who are not authorised to perform them or have not been so authorised...

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