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Ekinex EK-HH1-TP Applications Manual

Mixing group controller
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Summary of Contents for Ekinex EK-HH1-TP

  • Page 1 Application Manual EK-HH1-TP Mixing group controller...

  • Page 2: Table Of Contents

    6.9.10 Cooling: clim. Comp. and recalibration based on internal thermohygrometric conditions ... 28 6.9.11 Cooling: connecting communication objects of KNX sensors ............29 7 Display ................................. 32 Navigation buttons ..........................32 Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 2...
  • Page 3 Retained communication objects ......................64 Alarms and Error indications ........................ 65 Application examples ........................... 67 10 Warnings ..............................72 11 Other information ............................72 Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 3...
  • Page 4 Application Manual EK-HH1-TP mixing group controller Revision Modifications Date 1.01 Corrections in section 9.3, concerning Alarms and Error Codes 12/05/2018 1.00 Emission 07/04/2018 Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 4...

  • Page 5: Scope Of The Document

    Application Manual EK-HH1-TP mixing group controller 1 Scope of the document This application manual describes application details for the A1.0 release of the ekinex controller EK-HH1- ® The document is aimed at the system configurator as a description and reference of device features and application programming.

  • Page 6: Product Description

    EK-HH1-TP mixing group controller 2 Product description The ekinex® controller EK-HH1-TP is a KNX device for DIN-rail mounting designed to control a mixing group of a radiant or ceiling radiant plant in heating/cooling applications. A mixing group control includes a modulation of the mixing valve position and start/stop of the circulator of the related hydraulic circuit.
  • Page 7 The proper selection of the control mode and its proper parametrization must be evaluated together with the plant designer, taking into account all adopted plant solutions. Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 7...

  • Page 8: Electrical Characteristics

    Current consumption from bus < 30 mA Operating temperature 0°C… +45°C Protection degree IP20 Size 144 x 90 x 60 mm (L x H x P) Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 8...

  • Page 9: Switching, Display And Connection Elements

    3 Switching, display and connection elements The front side of the EK-HH1-TP device is fitted with a 4-key membrane keyboard, 2 indication LEDs, a 16 x 2 lines alphanumeric display and terminal blocks. The membrane keys allow the selection of different display menus and parameter modification: for an extended description of these menus and selectable parameters please refer to the chapter about the display functions.
  • Page 10 (*) This LED indicates the presence of an alarm; alarms are all with automatic reset. Please refer to the display dedicated page to verify the updated list of active alarms. (**) Manual mode insertion is carried out through the display dedicated menu. Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 10...

  • Page 11: Configuration

    The device-specific application program has to be loaded into ETS or, as alternative, the whole ekinex® product database can be loaded; at this point, all the instances of the selected device type can be added to the project. Configurable parameters are described in details in the next chapters of this application manual.

  • Page 12: Function Description

    The same considerations made for the command from bus are valid for state changes caused by internal timing functions (e.g. activation delays): those state changes have no effect while manual mode is active. Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 12...

  • Page 13: Manual Mode Activation

    6.5 Applications The EK-HH1-TP controller manages 1 mixing group for floor or ceiling radiant plants, both during cooling and heating, in combination with generators such as condensation boilers, chillers or heat pumps, in particular when 2 temperature connections are needed, a low temperature for radiant plant and a medium or high temperature for radiators or towel heaters.

  • Page 14: Mixing Group Management

    6.6.3 Activation The EK-HH1-TP controller is fitted with flexible configuration modes, depending on the adopted plant solution and complexity of the KNX device architecture. A mixing group can be activated in one of the following ways: Release 1.01 - Updating: 12/05/2018 Application Manual ©...

  • Page 15: Heating/Cooling Changeover

    The opening time is a parameter that must be properly set in order to guarantee a precise delivery temperature regulation: the opening percentage coming out of the Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 15...

  • Page 16: Pi (Proportional-Integral) Regulator

    After long inactivity periods, it is possible that the centrifugal circulator installed on the mixing group gets stuck due to impurities and/or calcium deposit: to prevent this from happening, the EK-HH1-TP controller can periodically activate the circulator for a short time in order to eliminate that deposit.

  • Page 17: Alarms

    This action can be too precautionary and can cause the EK-HH1-TP not to work properly. 6.6.9 Alarms The alarms handled by the EK-HH1-TP controller are grouped into the following categories: Analog input alarms • •...
  • Page 18 2 of the sequence. Operating alarms cause the interlock of the regulation. The EK-HH1-TP controller is fitted with a delivery overtemperature alarm using the same immersion sensor as the regulation. In radiant floor heating applications, in...
  • Page 19 The alarm LED on the front side of the device indicates, when active, the presence of any operating anomaly. Please refer to the Alarms menu on the alphanumeric display in order to analyze a list of all active alarms. Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 19...

  • Page 20: Physical Inputs

    Same considerations apply for the 0-10 V analog output. Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 20...

  • Page 21: Control Modes

    The EK-HH1-TP controller offers a wide range of solutions, suitable for all needs in radiant control systems, both for heating and cooling.

  • Page 22: Heating: Recalibration Based On Return Temperature

    KNX bus devices (by connecting the exposed communication objects for max. 16 zones), and a combination of the above mentioned methods. Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 22...

  • Page 23: Heating: Recalibration Based On Internal Conditions

    In the above block diagram, the measured and desired ambient temperature refer to only one zone and thermostat. In case of multiple zones and thermostats, the maximum deviation between T Setpoint and T Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 23...

  • Page 24: Heating: Climatic Compensation And Recalibration Based On Internal Conditions

    KNX bus devices (by connecting the exposed communication objects for max. 16 zones), with activation from bus and binary input. The EK-HH1-TP controller requires the connection of the delivery temperature sensor to input IN1 and the outside temperature sensor to input IN3.

  • Page 25: Heating: Connecting Communication Objects Of Knx Sensors

    Heating: connecting communication objects of KNX sensors In this section, we will show the block diagrams of the communication objects which must be linked in order to synchronize the EK-HH1-TP controller to KNX distributed sensors. The device can synchronize its communication objects in 2 modes: •...
  • Page 26 T room This block diagram applies in the following cases: • recalibration based on internal conditions climatic compensation and recalibration based on internal conditions • Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 26...

  • Page 27: Cooling: Fixed Point

    This configuration is useful when it is necessary to control more than one mixing group: a EK-HH1-TP device acquires the outside temperature through an analog input and sends its value on the bus to other control devices. Activation can be made through a binary input connected to IN4, a logic OR of the flow requests coming from the room temperature controllers integrated in the KNX bus devices (by connecting the exposed communication objects for max.

  • Page 28: Cooling: Recalibration Based On Internal Thermohygrometric Conditions

    The EK-HH1-TP controller can directly receive the dew point temperature value, a fundamental value in order to realize an active protection agains condensation of the radiant surfaces, from KNX sensors or can be internally calculated for a maximum of 16 zones.

  • Page 29: Cooling: Connecting Communication Objects Of Knx Sensors

    In this section, just like the heating case, we will show the block diagrams of the communication objects which must be linked in order to synchronize the EK-HH1-TP controller to KNX distributed sensors. Please refer to the paragraph Heating: connecting communication objects of KNX sensors for synchronization modes.
  • Page 30 • • climatic compensation and recalibration based on internal thermohygrometric conditions Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 30...
  • Page 31 (usage in combination with EK-EQ2-TP room thermostat with internal value processing), in the following control modes: recalibration based on internal thermohygrometric conditions • climatic compensation and recalibration based on internal thermohygrometric conditions • Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 31...

  • Page 32: Display

    This button returns from a submenu to the previous menu and RETURN cancels the modification of a parameter 7.2 Navigation menus Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 32...
  • Page 33 The password is made by 4 numeric digits. If the password protection is unlocked, after 4 minutes since the last interaction with the display, the password protection is automatically activated again. Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 33...

  • Page 34: Application Program For Ets

    Cooling Mixing valve output Logic functions 8.1 About EK-HH1-TP The folder Info su EK-HH1-TP is for information purposes only and does not contain parameters to be set. The information given is: © Copyright EKINEX S.p.A. 2016 Application software for ETS4 Version 2.00 (or later)

  • Page 35: General Parameters

    Application Manual EK-HH1-TP mixing group controller 8.2 General parameters In the General Parameters folder, coherently with all ekinex® devices for temperature control, the user has to make some initial choices about the plant. This folder contains the following parameters: Function: heating, cooling and both heating and cooling •...
  • Page 36 00:15:00 hh:mm:ss Restore auto mode time (0 means Manual operations = enabled no automatic restoring) [range 00:00:00 … 18:12:15] disabled Power loss alarm enabled Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 36...
  • Page 37 If the string length is less than 14 characters, all unused bytes are filled with NULL character (00h). For example: “EKINEX is OK” is represented in the following way: 45h 4Bh 49h 4Eh 45h 58h 20h 69h 73h 20h 4Fh 4Bh 00h 00h...
  • Page 38 0-10V control signal Mixing valve output ⇒ [5.001] percentage 1 Byte C-W--- 0-10V output control from bus Servomotor control = 3 (0..100%) point floating Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 38...

  • Page 39: Inputs

    [AI] generic (NTC) temperature sensor General Parameters ⇒ Mode Input 5 switching = from bus or from display [DI] generic contact [DI] anticondensation sensor contact Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 39...
  • Page 40 (from input 1) - Switch active Input 1 ⇒ Threshold 2 ≠ not Threshold temperature 2 1 Bit CR-T-- [1.001] switch sensor (from input 1) - Switch active Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 40...
  • Page 41 (from input 4) - Switch active Input 4 ⇒ Threshold 2 ≠ not Threshold temperature 2 1 Bit CR-T-- [1.001] switch sensor (from input 4) - Switch active Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 41...
  • Page 42 (from input 5) - Switch active Input 5 ⇒ Threshold 2 ≠ not Threshold temperature 2 1 Bit CR-T-- [1.001] switch sensor (from input 5) - Switch active Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 42...

  • Page 43: External Sensors From Bus

    (available in ekinex products); alternatively, the control unit is capable of internally elaborating an estimate of the dewpoint temperature of the single zone, given that the temperature and relative humidity values of the environment are available (2 bytes value [DPT 9.007] or 1 byte [DPT 5.001]).
  • Page 44 132, 137, 142, 147 Cooling ⇒ Control type = recalibration based on internal thermohygrometric conditions o climatic compensation and recalibration based on internal thermohygrometric conditions Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 44...
  • Page 45 114, 119, 124, 129, point room (°C) or climatic compensation and 134, 139, 144, 149 recalibration based on internal thermohygrometric conditions, Activate internal dewpoint processing = yes Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 45...

  • Page 46: Heating

    Control type = climatic compensation or Max delivery setpoint [0,1 °C] climatic compensation and recalibration [range 300 … 600] based on internal conditions Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 46...
  • Page 47 Its restore is automatic as soon as the delivery temperature rises above the selected alarm threshold. This function cannot substitute in any way an external safety thermostat, which is a hardware safety solution. Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 47...
  • Page 48 Control type = climatic compensation 2 Bytes CRWTU- [9.001] temperature (°C) T outside T1 (heating) climatic compensation and recalibration based on internal conditions Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 48...
  • Page 49 Control type = recalibration based on internal conditions 2 Bytes CRWTU- [9.001] temperature (°C) Setpoint change (heating) climatic compensation and recalibration based on internal conditions Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 49...

  • Page 50: Cooling

    Control type = climatic compensation Outside temperature T2, for or climatic compensation and compensation start [0,1 °C] recalibration based on internal [range 200 … 400] thermohygrometric conditions Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 50...
  • Page 51 4 minutes, in order to avoid condensation on the radiating surfaces, the circulator is stopped, too. Its restore is automatic as soon as the delivery temperature rises above the selected alarm threshold. Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 51...
  • Page 52 Control type = climatic compensation or climatic compensation and 2 Bytes CR-T-- [9.001] temperature (°C) Min delivery setpoint (cooling) recalibration based on internal thermohygrometric conditions Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 52...
  • Page 53 2 Bytes CR-T-- [9.001] temperature (°C) Safety value (cooling) climatic compensation and recalibration based on internal thermohygrometric conditions Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 53...

  • Page 54: Mixing Valve Output

    10 s Time interval Enable circulator protection function = yes [other values in the range 5 s … 20 min] Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 54...
  • Page 55 Disable circulator from bus = 1 Bit C-W--- [1.003] enable from bus This C.O. is retained, its state is maintained after a bus voltage failure. Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 55...
  • Page 56 Disable output 0-10V from bus Servomotor control = with 0- 10V control signal This C.O. is retained, its state is maintained after a bus voltage failure. Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 56...

  • Page 57: Logic Functions

    Disable output from bus DO3 output control from bus = yes not inverted Signal from bus DO3 output control from bus = yes inverted Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 57...
  • Page 58 Logic object 13 = enabled Logic function X – Logic function X = enabled 1 Bit C-WTU- [1.001] switch 163, 180 Input 14 Logic object 14 = enabled Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 58...
  • Page 59 Disable output from bus = yes DO3 output control from bus = Disable output DO3 from 1 Bit C-W--- [1.003] enable yes, Disable output from bus = yes Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 59...

  • Page 60: Appendix

    Threshold temperature 1 sensor (from input 2) - 1 Bit R-CT-- [1.1] DPT_Switch Switch Threshold temperature 2 sensor (from input 2) - 1 Bit R-CT-- [1.1] DPT_Switch Switch Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 60...
  • Page 61 1 Byte -WC--- [5.1] DPT_Scaling Parameters Fixed point delivery setpoint (heating) 2 Bytes RWCTU- [9.1] DPT_Value_Temp Min delivery setpoint (heating) 2 Bytes RWCTU- [9.1] DPT_Value_Temp Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 61...
  • Page 62 Logic function X – Input 3 1 Bit -WCTU- [1.1] DPT_Switch 153, 170 Logic function X – Input 4 1 Bit -WCTU- [1.1] DPT_Switch Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 62...
  • Page 63 165, 182 Logic function X – Input 16 1 Bit -WCTU- [1.1] DPT_Switch 166, 183 Logic function X – Output 1 Bit R-CT-- [1.1] DPT_Switch Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 63...

  • Page 64: Retained Communication Objects

    T outside T2 (cooling) 2 Bytes RWCTU- [9.1] DPT_Value_Temp T outside T3 (cooling) 2 Bytes RWCTU- [9.1] DPT_Value_Temp Safety value (cooling) 2 Bytes RWCTU- [9.1] DPT_Value_Temp Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 64...

  • Page 65: Alarms And Error Indications

    E185, E205, E225, E245, E265, E285, E305, E325 E26, E46, E66, E86, E106, E126, E146, E166, Zone X – Room temperature timeout E186, E206, E226, E246, Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 65...
  • Page 66 E267, E287, E307, E327 E28, E48, E68, E88, E108, E128, E148, E168, Zone X – Dewpoint temperature timeout E188, E208, E228, E248, E268, E288, E308, E328 Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 66...

  • Page 67: Application Examples

    Application Manual EK-HH1-TP mixing group controller 9.4 Application examples Here are some application examples of connection and use of the EK-HH1-TP controller. 7) Outside temperature sensor 1) Heat generator 8) Power supply 230 Vac, 50/60 Hz 2) Mixing valve 9) Power supply 24 Vac, 50/60 Hz...
  • Page 68 An uncorrect electrical wiring will lead to an uncorrect system behavior. In order to facilitate commissioning and valve calibration, the EK-HH1-TP controller, after its bus terminals have been powered, when detecting an activation request, runs a complete closing cycle of the valve.
  • Page 69 The DO1 output (terminals 20-21) is dedicated to control the circulator on the mixing group; the remaining outputs DO2 and DO2, as well as the 0-10V analog output signal, can be used for additional commands. Release 1.01 - Updating: 12/05/2018 Application Manual © EKINEX S.p.A. – All rights reserved Pag. 69...
  • Page 70 The EK-HH1-TP controller, via KNX bus, detects the activation requests of the zones. Then it detects and the deviation from the desired internal conditions and evaluates the relative humidity conditions inside the environments to input the refrigerated fluid into the circuits under optimal conditions, thus maximizing efficiency and avoiding surface condensation during cooling mode.
  • Page 71 Heating and cooling radiant plant with use of pushbutton commands for room temperature detection. In this application, the main control is performed by an EK-HH1-TP device; the pushbutton commands dedicated to lighting (if installed in proper positions) also detect the room temperature; the power modules EK-HE1-TP, installed next to the distribution manifolds, act as actuators through the command of electrothermal actuators on the relevant zone circuits.

  • Page 72: Warnings

    • KNX® and ETS® are registered trademarks of KNX Association cvba, Brussels © EKINEX S.p.A. The company reserves the right to make changes to this documentation without notice. Release 1.01 - Updating: 12/05/2018 Application Manual ©...

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