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Zehnder Rittling FOCUS 200 Operating Instructions Manual

Mechanical ventilation heat recovery unit
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Version: 2.0_03/2015
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Summary of Contents for Zehnder Rittling FOCUS 200

  • Page 1 Version: 2.0_03/2015...
  • Page 2 This document applies to the following types of devices: • Zehnder FOCUS 200 series The types of device Zehnder FOCUS 200, are hereinafter referred to under the product name FOCUS, unless details are for type differentiation. The heat recovery unit (HRU) FOCUS has been built according to the current state of the art and the acknowledged rules on safety.
  • Page 3 Index Introduction ..........................6 Warranty and Liability ......................6 1.1.1 Warrant Terms ......................... 6 1.1.2 Liability ............................. 6 Safety ............................6 1.2.1 Intended use ..........................6 1.2.1.1 Heat recovery unit FOCUS ...................... 6 1.2.1.2 Control unit ..........................7 1.2.2 Qualification of the target group ....................7 1.2.2.1 Operators ..........................
  • Page 4 2.4.2.1 Resetting the filter run-time by means of the LED control panel ........... 26 2.4.2.2 Resetting the filter run-time by means of the TFT touch panel ..........27 2.4.3 What to Do in the Event of a Failure? ..................27 Disposal ..........................
  • Page 5 Appendix: Check List A Maintenance Works of the User Check List B Maintenance Works of skilled Personnel Air Flow Report Commissioning and Handover Certificate EC Declaration of Conformity Zehnder FOCUS 200 series...
  • Page 6 1 Introduction This section contains general information on the heat recovery unit FOCUS. Warranty and Liability 1.1.1 Warrant Terms Our “General Terms and Conditions” apply to the FOCUS in their respectively valid version. The warranty is determined by the legal warranty terms. It solely applies to the replacement of material and does not include the service.
  • Page 7 • The instructions for regular checking and maintenance of the device must be strictly complied with; • Any modification of the FOCUS is prohibited; All enclosed documentation is a part of the product: • Read and observe the documentation; • Store the documentation in such a way that they are accessible at any time. 1.2.1.2 Control unit By means of the control units TFT touch panel or LED control panel, you configure and operate the...
  • Page 8 W.C.s and in introducing an equal quantity of fresh air into living rooms, bedrooms and children’s rooms. In the FOCUS 200 series are designed with patented reverse flow channel heat exchanger of plastic for the heat recovery. The FOCUS F 200 series are equipped with a membrane moisture heat exchanger (enthalpy exchanger) which, due to its physical properties, is not only able to transfer heat, but also moisture.
  • Page 9 EPP moulded parts Screw connection condensate connection Fans (2x) EPP foam cover for fan (2x) Heat exchanger with condensate pan Front plate of coated steel sheet Tab. 1: Main components FOCUS 2.1.1 Type plate The type plate clearly identifies the product. The information on the type plate is necessary for the safe use of the product and in case of service-related questions.
  • Page 10 2.2.1 LED control panel The LED control panel has 7 symbolized short-stroke keys. By pressing a key or key combination, the corresponding operations are performed. The active mode of operation is signaled by means green or red LED. For the LED control panel in the design of the PEHA switch range, both on-wall and in-wall installation is possible.
  • Page 11 Key combination By means of the standby function, the ventilation device is activation / deactivation switched to an energy-saving mode. By pressing the – key … standby mode several times until LED L1 goes off as well, the standby mode is activated. This state is signalled by the periodic blinking of the LED L8.
  • Page 12 2.2.1.2 Signalling of operating and error conditions LED L8 LED L1 … L7 LED L11 LED L9 LED L12 LED L10 LED signalling Function / meaning LED lamp display ≙ fan speed 0 (fan off, standby) No LED L1 ... L7 ≙...
  • Page 13 2.2.2 TFT touch panel The 3.5“ TFT display of the touch panel is operated by touching the symbolised buttons with the fingers. The display of the active operating mode and the corresponding button are signalled in colour. The comfort edition of the control panel, as a TFT touch panel with a stainless steel frame, is designed for an in-wall installation.
  • Page 14 Button The automatic mode has 2 automatic functions – automatic Automatic mode timing and automatic sensor. The manual settings are deactivated by touching the button. By means of the automatic timing mode, different fan speeds Automatic timing mode (FS0, FS1, FS2 or FS3) can be defined for every day of the week with a resolution of 15 minutes.
  • Page 15 Signalling For cyclic filter checking, an operating hours counter is filter symbol / filter run- integrated in the control. The operating hours are subtracted time from the preset filter run-time by counting backwards and are displayed in days below the filter symbol. The filter symbol colour changes from white to yellow when the filter run-time is ≤...
  • Page 16 Menu structure of the TFT touch panel The menu structure is made up of the start menu and three main menus (information, settings and setup). When activating the TFT touch panel, the start menu is displayed. The main menus are each divided up into submenus, allowing the access to information or parameter changes.
  • Page 17 2.3.1 Main menu Information The main menu Information is divided into eight submenus. In the submenus, information on the current device status as well as selected factory pre-sets (e.g. type of device) are visualised. Using the navigation buttons, the respective menu is selected and called up with the Enter key. 2.3.1.1 Submenu Current message Here, a piece of information (e.
  • Page 18 Symbol Designation Explanation / actions Button Using the button Fan speed 1, activate FS1 and parameterise Fan speed 1 (FS1) it with the navigation buttons. Setting range: 17 % < FS1 < FS2 Button Using the button Fan speed 3, activate FS3 and parameterise Fan speed 3 (FS3) it with the navigation buttons.
  • Page 19 2.3.2.4 Submenu Automatic Two operating modes are provided in the automatic mode: Automatic timing • Automatic sensor • The desired operating mode of the automatic mode is selected using the navigation buttons (red background of the text) and by setting the checkmark, and confirmed with Enter. 2.3.2.4.1 Automatic timing Symbol...
  • Page 20 Fan speed (FS) Time slot (time 0 - 24 - 16 - 24 – 8 Tab. 9: Time slot factory setting, group weekdays Mon-Fri Fig 8: Automatic timing factory setting, group weekdays Sat-Sun Fan speed (FS) Time slot (time 0 - 24 - 24 Tab.
  • Page 21 parameterized between 17 % and 100 %. Using the navigation buttons, the characteristic variables (red background of the text) to be parameterised can be selected and the values can be set using the buttons + / -. Output signal sensor Symbol Designation 0…10 V characteristic curve...
  • Page 22 2.3.2.8 Submenu Key lock The user interface of the TFT touch panel can be deactivated with a password-protected key lock. Symbol Designation Explanation / actions Password Entry of the password <11111> and confirmation with Enter. On prompt the touch pad, “Key lock” is displayed as current status. Button After touching the button, the user is prompted to enter the Deactivate key...
  • Page 23 Abbreviation Designation Explanation / actions t_out_max Maximum Setting range upper threshold: 15 °C…30 °C outside If the outside temperature is above the set threshold value, the temperature flap of the geothermal heat exchanger opens the intake air duct for cooling the outside air. → cooling function t_out_min Minimum outside Setting range lower threshold: -10 °C…14.5 °C...
  • Page 24 Two high-quality original filters of the manufacturer are installed inside the FOCUS. After the corresponding message of the control panel or after visualisation of a programmed digital output signal, the filters in the FOCUS shall be checked. In order to do so, proceed as follows: 1.
  • Page 25 Fig 12: Dismantlement of the foam cover for filter and heat exchanger 5. Pull the filters out of the filter slide-in compartments by means of the filter strap E. The filters are marked with an arrow according to the required flow direction! Fig 13: Pull out the filter...
  • Page 26 6. Push the new filters in the filter slide-in compartments with regard to the flow direction G. The filters are marked with an arrow according to the required flow direction. Fig 14: Install the new filter Pollen filters are to be inserted in the filter slide-in compartment of the intake air connection! The intake air connection is marked with the symbol 7.
  • Page 27 2.4.2.2 Resetting the filter run-time by means of the TFT touch panel Symbol Designation Explanation / actions Signalling In case the filter run-time has expired, the message “Replace filter” Filter run-time is generated, signalling that the filter must be checked. expired Button By touching the button Menu mode, you reach the main menus...
  • Page 28 3 Hints for qualified personnel This section describes how to install and commission the FOCUS, how to analyse errors and how to carry out special maintenance work. Prinzipal configuration of the system Fig 15: General system outline with FOCUS, version LEFT The basic configuration of the system is universally valid and does not represent the system outline of the project-related ventilation plant! It is designed for representation of the plant-specific system structure for sensors and ventilation equipment.
  • Page 29 3.2.1 Transport and packing Proceed with care when transporting and unpacking the FOCUS. The packaging of the device may only be removed immediately before assembly! Prior to and during assembly interruptions, the open air duct connection stubs must be protected with the caps of the air connection against ingress of construction dust and moisture! 3.2.2 Checking of the scope of delivery...
  • Page 30 Note depending on the installation location, the required minimum clearances to finished floor! Fig 17: Wall mounting position to the finished floor (version LEFT) 2. Glue each piece of the enclosed, self-adhesive rubber buffer D in the bottom corner region on the rear panel of the device.
  • Page 31 3.3.2 Mounting on a mounting frame The area of the mounting frame has dimensions of 620 x 292 mm and is vertically adjustable between 280 mm and 320 mm using mounting frame feet. The mounting frame consists of two long side parts with the frame feet and two short side parts.
  • Page 32 3. Now insert both the other two footboards together. Fig 23: Each two together fixed footboards 4. Mount the mounting sheet C with the tongues, which point upwards, to a long side part of the mounting frame F. In doing so, screw both of the sheet metal screws D in the designated bore holes E of the side part.
  • Page 33 3.3.3 Air duct connection Observe the following points when mounting the air ducts: • Mount the air duct types of the ventilation device to the connector stubs in accordance with the present LEFT or RIGHT device version (see tag next to the cover sheet control). Fig 26: Layout air ducts version LEFT and version RIGHT •...
  • Page 34 Fig 28: Connector of the condensate drain version LEFT A siphon has to be mounted to the 1¼-inch external thread of the condensate connection stub in such a way that the minimum 60 mm requirements of the liquid gauge heights are met in accordance with the schematic diagram.
  • Page 35 Electrical connections Electrical connections must be established in accordance with the applied standards to electrical equipment and only by qualified personnel! The electrical power supply of the FOCUS is provided via the 3-pole plug connection A of a lower power device by means of the power cable.
  • Page 36 board internal connection between the RJ45 jack of the FOCUS and one of the two RJ45 jack of the adapter board. Fig 32: Casing for adapter board Fig 31: Adapter board A screened 4-wire cable is connected to the 5-pole screw terminal of the adapter board. This cable connects the adapter board to the 5-pole screw terminal of the control unit’s adapter board.
  • Page 37 Fig 34: Touchpad with stainless steel frame; ribbon cable of the control unit adapter; Touchpad engaged in the in-wall base plate (from left to right) The smaller side of the stainless steel frame of the ready-made TFT touch panel has to point upwards. In doing so, the control unit adapter and the in-wall base plate have to be positioned in such a way that the ribbon cable of the control unit adapter, which is arched downward, is plugged in the TFT touch panel.
  • Page 38 The connection of several control panels with the same address number results in a communication error! The operation mode of the ventilation device is based on the last input instruction at one of the TFT touch panels connected. 3.4.4 Connection of the LED control panel The operation of the ventilation device is only possible with one a control unit type LED control panel.
  • Page 39 3.4.7 Connection status relay A status relay on the master controller indicates the operating status of the fans (factory setting). Fan off: Contacts open Fan on: Contacts closed Terminal X1 master controller Contact designation X1.9 Normally open contact status relay (max. 24 V switching voltage) X1.10 Change over contact status relay (max.
  • Page 40 3.4.10 Operation without a control unit connected When operating the ventilation device without control panel, the control operates according to the operating mode set last. The control panel may only be disconnected from the BUS in de-energised condition. Disconnection during the operation results in a communication error! Commissioning of the FOCUS 3.5.1 Operational readiness...
  • Page 41 Button Confirm by touching the Enter button. Enter Button By touching Cancel / back button, exit the menu levels until the Cancel / back start menu appears. Tab. 28: Step sequence adjustment of the nominal air flow by means of the TFT touch panel The values for balancing are factory-set and should only be modified if necessary.
  • Page 42 3.5.3 Adjustment of the Valves Make sure that the supply and extract air valves are open as much as possible at the beginning of the volume flow measurement. • Set the fans to nominal air volume flow. • Adjustment of the air volume flows to the air valves by means of a volume flow hood and an anemometer (see air volume log) •...
  • Page 43 Symbol Designation Explanation / actions Buttons Temperatures Navigation Select touching navigation buttons (red background of the text) and confirm with Enter. Buttons Anti-freeze protection thresholds Navigation Using the navigation buttons, the characteristic variables (red background of the text) to be parameterised can be selected and the values can be set using the buttons + / - Buttons Confirm by touching the Enter button.
  • Page 44 Buttons Confirm by touching the Enter button. By touching the Cancel / Enter back button, exit the menu level. Cancel / back Tab. 32: Parameterization submenu fan speeds 3.6.1.3 Submenu Post-heating The following settings are made in the submenu post-heating: •...
  • Page 45 Buttons Confirm by touching the Enter button. By touching the Cancel / Enter back button, exit the menu level. Cancel / back Tab. 34: Parameterization setting submenu summer ventilation without by-pass The following switch conditions are for provided for the summer ventilation without bypass (as an example related to device version LEFT): Parameter Parameter description...
  • Page 46 Maintenance and repair by qualified personnel If regular maintenance work is not performed at the FOCUS, this impairs the functioning of the comfort ventilation. The maintenance and repair by qualified personnel should only be carried out by a maintenance service on the basis of a maintenance contract.
  • Page 47 Fig 38: Opening the front plate 4. Pull by means of strap C the EPP foam cover of the filters and the heat exchanger D from the foam housing. Thereby, take and pull the strap at one of the ends and counter-hold the device with the other hand at the same time.
  • Page 48 Fig 40: Remove the filters 6. Now pull the heat exchanger G by means of the strap F from the EPP housing. Fig 41: Remove the heat exchanger 7. Clean the heat exchanger as following: • Dip the heat exchanger into warm water several times (max. 40 °C). •...
  • Page 49 • For drying, position the heat exchanger in such a way that existing residual water can run out of the openings. • Let the heat exchanger run completely dry before reinstalling it. Hints for proper cleaning can also be found at the manufacturer’s website. 8.
  • Page 50 Visualisation of errors and error treatment The device control is equipped with an internal system for error detection.. The visualisation of the error messages and the error forecast is made according to the display possibilities of the connected control panel. In response to an error condition, the fans are switched off.
  • Page 51 Message on display Possible cause Control / Action Error sensor 1 Sensor break or short circuit Check or replace sensor temperature sensor Version LEFT Version RIGHT T3 Error sensor 2 Sensor break or short circuit Check or replace sensor temperature sensor Version LEFT Version RIGHT T4 Error sensor 3...
  • Page 52 Technical description 3.9.1 Types of device FOCUS 200 - series Ventilation unit with counter flow channel heat exchanger of plastic FOCUS F 200 - series Ventilation unit with counter flow enthalpy exchanger with polymer membrane 3.9.2 Designs layout air connection...
  • Page 53 Efficiency criterion 0,31 Wh/m³ (at 135 m³/h / 100 Pa) Heat recovery rate acc. PHI 91 % (at 135 m³/h / 100 Pa); FOCUS 200 Sound, device emission 30 dB(A) (at 155 m³/h / 100 Pa) (acc. to DIN EN ISO 3743-1, distance of 3 m) 24 dB(A) (at 200 m³/h / 100 Pa)
  • Page 54 3.9.4 Dimensional sketch Fig 43: Dimension drawing FOCUS...
  • Page 55 3.9.5 Plant 1 circuit diagram FOCUS...
  • Page 56 3.9.6 Plant 2 terminal scheme master controller...
  • Page 57 Date: 27/03/15 Checklist A Subject to change Maintenance by customer in the interest of technical progress. Maintenance Work Enter date in the quarter 1. Change both filters in the MVHR unit (change every 90 days) Quarter Year 201... 201... 201... 201...
  • Page 58 Date: 27/03/15 Checklist B Subject to change Maintenance by skilled personnel in the interest of technical progress. Maintenance Enter result − Inspection of MVHR unit based according to the currently valid national standards − Informal report for comments on MVHR unit's condition −...
  • Page 59 Date: 27/03/15 Air Flow Report Operating condition, functional check Subject to change in the interest of technical instruction progress. Customer data Surname: Surname: Surname: Street: Street: Street: Construction project: MVHR-type: MVHR-type: MVHR-type: Measured data Measuring equipment used: Fault descriptions during Indoor temperature measurement: Outdoor temperature...
  • Page 60 Commissioning and handover Date: 27/03/15 certificate Subject to change Completeness and performance in the interest of technical progress. verifications acc. to DIN 1946-6 Customer data Surname: Surname: Surname: Street: Street: Street: Construction project: MVHR-type: MVHR-type: MVHR-type: Completeness Device Ausführung Result - Version as planned yes / no Supply air duct...
  • Page 61 Product description: Mechanical ventilation heat recovery (MVHR) unit Zehnder FOCUS 200 – series Directive 2004/108/EC of the European Parliament and of the Council of 15 December 2004 on the...
  • Page 62 PAUL Wärmerückgewinnung GmbH August-Horch-Str. 7 08141 Reinsdorf Germany Tel: +49 (0) 375 - 30 35 05 0 Fax: +49 (0) 375 - 30 35 05 55 info@paul-lueftung.de www.paul-lueftung.de Version: 2.0_03/2015...