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Technische Alternative RT GmbH
A-3872 Amaliendorf, Langestrasse 124, Austria
The CORA-HKT radiator thermostat is used to control the flow rate in radiators, underfloor heating
systems, wall heating systems and similar.
Table of contents
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Cable connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Battery operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Wireless system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Relaying wireless signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Initialisation run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Opening the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
LED status indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Output variables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Fault codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Input variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Device information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Dimensions in mm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Tel +43 (0)2862 53635
Radiator thermostat
mail@ta.co.at
CORA-HKT
Vers. 1.00.1
1
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Summary of Contents for Technische Alternative CORA-HKT
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Page 1: Table Of Contents
Vers. 1.00.1 Radiator thermostat The CORA-HKT radiator thermostat is used to control the flow rate in radiators, underfloor heating systems, wall heating systems and similar. Table of contents Installation ............... . 2 Cable connection . -
Page 2: Installation
If the CORA-HKT is powered by batteries, it cannot be used as a HOP (see Relaying wireless signals). Cable connection The CORA-HKT can be just powered (12 V) by cable or can be both powered and operated by cable (CORA-DL). The DL bus is not protected against reverse polarity. -
Page 3: Wireless System
The CORA-HKT can also be used to relay wireless signals from other devices, but only if it is powered via a cable. If it receives signals via a relay, it automatically returns data via the same relay. No set- tings are therefore required for the relay on the CORA-HKT. -
Page 4: Initialisation Run
Initialisation run As soon as the HKT is supplied with power, it immediately starts an initialisation run. It should there- fore already be installed when the power is switched on. If this is not the case, carry out a restart after installation by clicking the button (see "Button"). -
Page 5: Led Status Indicator
LED status indicator The LEDs on the device indicate various operating states. Green, flashes quickly The button has been double-clicked – wireless pairing is enabled for 5 minutes (the LED flashes for just 3 seconds, not for the whole 5 minutes). Orange, flashes every 10 Valve was not found (fault code 4). -
Page 6: Input Variables
Input variables The following values can be sent to the CORA-HKT (cannot be changed). Room temp. The current room temperature can also come from an external sensor. Help- [°C] ful if the room temperature recorded by the HKT itself is not reliable. -
Page 7: Output Variables
Output variables The following values are transmitted from the CORA-HKT to the paired/wired device (cannot be changed): Timeout Digital value Yes/No (Yes if connection lost) Battery status Battery state of charge (0-100 %) Eff. room temp. The room temperature used for the calculation. -
Page 8: Programming
Programming The CORA-HKT is incorporated into the programming of the connected controller. We recommend the TAPPS2 PC software for this. This is available to download free of charge at www.ta.co.at/down- load/software/. Version 1.20 of TAPPS2 is required as a minimum. -
Page 9: Dimensions In Mm
Dimensions in mm Technical data Batteries 2x AA (not supplied) Battery service life Can vary depending on battery and motor activity; typically 2 years Bus load CORA-DL Power consumption 12 Depending on motor activity max. 3 W (standby typically 0.1 W) Thread M30x1 fine thread Permissible ambient... - Page 12 EU Declaration of conformity Document-Nr. / Date: TA21024 / 08.11.2023 Company/Manufacturer: Technische Alternative RT GmbH Address: A-3872 Amaliendorf, Langestraße 124 This declaration of conformity is issued under the sole responsibility of the manufacturer. Product name: CORA-HKT Product brand: Technische Alternative RT GmbH...
- Page 13 Note: The following guarantee conditions do not limit the legal right to a warranty, but rather expand your rights as a consumer. 1. Technische Alternative RT GmbH provides a one year warranty from the date of purchase for all the devices and parts which it sells. Defects must be reported immediately upon detection and within the guarantee period.
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