Zehnder Rittling ComfoAir E350 Manual
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Zehnder Rittling ComfoAir E350 Manual

Manual for the service engineer
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ComfoAir E350
Manual for the service engineer
Heating
Cooling
Ventilation
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Summary of Contents for Zehnder Rittling ComfoAir E350

  • Page 1 ComfoAir E350 Manual for the service engineer Heating Cooling Ventilation Filtering...

  • Page 2: Foreword

    Foreword Information given in the Instructions for the user General information about the ventilation system. Please read this manual carefully before operating Warranty and liability conditions. the unit. EC declaration of conformity. Replacing filters in the unit. With the help of this manual, you can install, commission Cleaning the valves/grilles in the ventilation system.

  • Page 3: Table Of Contents

    Contents Foreword .....................................2 Safety instructions ..................................4 Service procedures ..................................5 2.1 Overview of the display .................................5 2.2 Service menu ..................................6 2.3 Explanation of the SERVICE MODE menu ..........................7 2.4 Programming air specifications ..............................8 2.5 RF controls ...................................9 2.6 Explanation of VENTILATION SETTINGS menu ........................10 2.7 Explanation of REPLACE FILTER warning ..........................10 2.8 Explanation of ALTITUDE menu ............................10 2.9 Explanation of TEMPERATURE menu ..........................10...

  • Page 4: Safety Instructions

    1 Safety instructions Power supply diagram PE (YELLOW-GREEN) ■ Always comply with the safety N* (BLUE) regulations in this document. Failure L*, BROWN, LOW PRESET to comply with the safety regulations, BLACK*, MEDIUM PRESET instructions, warnings and comments GREY*, HIGH PRESET may lead to personal injury or damage * Disconnect these poles for servicing to the unit.

  • Page 5: Service Procedures

    2 Service procedures Explanation 2.1 Overview of the display Current airflow: ■ No icon = No ventilation The unit has a touchscreen display for readout and = LOW SETTING; ■ programming the unit. = MEDIUM SETTING; ■ Main screen of display = HIGH SETTING;...

  • Page 6: Service Menu

    2.2 Service menu The service menu is protected by a password (4210) that remains active for at least 15 minutes. Each number The service menu lists all the steps required for of the password must be entered individually with the commissioning the unit and tracing the causes of any arrow keys and confirmed with the confirmation key.

  • Page 7: Explanation Of The Service Mode Menu

    2.3 Explanation of the SERVICE MODE menu To enable maintenance of the unit, it is fitted with a SERVICE MODE. By activating this mode, the basic functions of the unit are deactivated and the bypass valves of the heat exchanger are removed. To prevent electrically charged parts being touched, the power must still be manually disconnected from the unit after setting the SERVICE MODE.

  • Page 8: Programming Air Specifications

    2.4 Programming air specifications Close all windows and doors. Connect the device to the mains. Go to the settings for the installer. Select a language and confirm that the siphon is Open all valves connected to the ventilation (MENU > Login; Login code= 4210 mounted correctly.

  • Page 9: Rf Controls

    2.5 RF controls To enable the use of RF controls, the unit needs to be equipped with an RF PCB. The RF PCB has to be ordered separately and can be installed later on. If RF ACTIVATION is set to ON: Set the Set the RF ACTIVATION on the display of Set METHOD on the display of the unit to RF ACTIVATION on the display of the...

  • Page 10: Explanation Of Ventilation Settings Menu

    2.6 Explanation of VENTILATION SETTINGS 2.9 Explanation of TEMPERATURE menu The unit is equipped with 5 temperature sensors. The menu readout of the current value of these sensors appears in The building regulations describe how much fresh the TEMPERATURE menu in the sequence given below. supply air must be provided to each room.

  • Page 11: Explanation Of Unit Specification Menu

    2.11 Explanation of UNIT SPECIFICATION menu 2.13 Explanation of ANALOGUE 0-10 V menu In the UNIT SPECIFICATION menu, the readout of the (standard) and RF SETTING (optional) basic unit details appears in the sequence below. The unit can be controlled with any analogue 0-10 V Meaning signal and/or an RF signal.

  • Page 12: Explanation Of The System Test Menu

    2.15 Explanation of the SYSTEM TEST menu 2.16 Explanation of RESTORE TO FACTORY SETTINGS menu A system test can be initiated in the SYSTEM TEST The factory settings of the unit are permanently saved menu. to the control PCB. Using the RESTORE TO FACTORY (MENU>Login>SYSTEM TEST) SETTINGS menu, the unit can be switched back to the factory settings.
  • Page 13 What is the METHOD CONTROL? With this method, an incoming signal generates a standard outgoing signal. What is POSITIVE? With positive control, a higher input signal generates a higher output signal. Speed Geschwindigkeit Signal What is NEGATIVE? With negative control, a higher input signal generates a lower output signal.

  • Page 14: Technical Specifications

    3 Technical specifications ComfoAir E350 Performance Minimum airflow if preheater on 100 m Minimum airflow if preheater off 50 m Maximum airflow 350 m Heat efficiency level Electrical connection details Maximum performance/power without preheater 120 W 1.03 A Maximum performance/power with preheater 1580 W 7.38 A...
  • Page 15 ComfoAir E 350 ComfoAir E 350 ComfoAir E400 0,27 0.25 0,22 0,17 0.15 Qv (m³/h) Qv (m³/h) SFP (Wh/m³) Lw (dB[A]) qv_max SFP (Wh/m³) Lw (dB[A]) qv_max cos φ Lw, supply Lw, return Lw, casing Wh/m dB(A) dB(A) dB(A) 0.38 0.15 0.42 0.18 0.44 0.19 0.46 0.24...

  • Page 16: Service Parts

    Refer to the price list from your supplier for the item codes and the prices of all available sets. Identification Part ComfoAir E350 control PCB with display RF PCB (RF receiver) Sensor upper section (TEMP/RH SENSOR 11/20) Filter set ISO Coarse / ISO Coarse (ISO Coarse / ISO ePM1) according to ISO 16890 (G4/G4, G4/F7)

  • Page 17: Connection Diagram

    3.2 Connection diagram Key: Meaning Code Meaning Code Right-hand unit Left-hand unit Green/Yellow BYPASS MOTOR 11 extract air BYPASS MOTOR 20 outdoor air N / BU Blue BYPASS MOTOR 20 outdoor air BYPASS MOTOR 11 extract air L / BK Brown or black FAN 22 supply air FAN 12 exhaust air...
  • Page 18 Front view of main PCB 18 - EN...

  • Page 19: Dimension Sketch

    4.3 Maatschets 4.3 Maatschets 3.3 Dimension sketch Maßskizzen 4.3 Maatschets CA300 CA400 CA300 CA400 Top view Above view CA300 CA400 Front view Frontal view Side view Bottom view Below view 10 - NL 10 - NL 10 - NL EN - 19...

  • Page 20: Maintenance Procedures

    4 Maintenance procedures Always disconnect the power supply of the unit before you start working on the Observe all maintenance instructions given in this ventilation system. Operation with the section and in the user manual. If the maintenance casing open can lead to personal injury. In is not performed periodically the performance of the such a case, ensure that no live or rotating ventilation system will ultimately be compromised.

  • Page 21: Maintenance Of The Casing

    4.2 Maintenance of the casing Check the unit casing at least once every 2 years. Remove the front cover as instructed in the Perform the following checks: Treat any signs of corrosion and other damage section on the procedure for opening the unit: ■...

  • Page 22: Maintenance Of The Bypass Flaps

    4.4 Maintenance of the bypass flaps Inspect the bypass flaps at least once every two years. With right-hand side appliance valve in the Remove the heat exchanger as instructed in the While holding the clamp away from the flap, pull maintenance instructions for the heat exchanger back: Press temperature sensor T21 up, out of the flap towards you.

  • Page 23: Maintenance Of The Fans

    4.5 Maintenance of the fans Check the fans at least once every two years Remove the heat exchanger as instructed in the Perform the following checks: Clean the fans and grille if necessary. maintenance instructions for the ■ Check the air grille for dirt and damage; ■...

  • Page 24: Maintenance Of The Preheater

    Remove the sealing grommet, including wiring, Lift the volute casing out of the Remove the 5 screws and the seal on the edge by pushing down the plastic bulkhead. unit. of the volute casing to open it. 4.6 Maintenance of the preheater Check the preheater at least once every 2 years.

  • Page 25: Maintenance Of The Condensation Drain

    4.7 Maintenance of the condensation drain: Check the condensation drain at least once every two years Example of siphon Example of siphon Disconnect the condensation drain. Perform the following checks on the Resolve any problems detected. condensation drain siphon: ■ Check whether the drain is still open by pouring water in the siphon;...

  • Page 26: Malfunction Procedures

    5 Malfunction procedures The electronics can be damaged by static charging, so always take measures to prevent electrostatic discharge (e.g. antistatic belt) when handling the Always disconnect the power supply of the electronics. unit before you start working on the unit. Operation with the casing open can lead to The unit always aims to ventilate as comfortably and personal injury.

  • Page 27: Access To The Control Pcb

    5.2 Access to the control PCB Disconnect the power to the unit. Remove the 3 screws from the display cover. Remove the 4 screws from the electronics cover. Remove the 3 screws from the front cover. Then remove this cover. Then remove this cover.

  • Page 28: Access To The T11/T20 Sensor

    5.4 Access to the T11/T20 sensor Go to the control PCB as described in the Pull the black connector of the preheater from Remove the preheater, including wiring and section “Access to the control PCB”: the control PCB. sealing grommet, from the unit. ■...

  • Page 29: Access To The T12/T21/T22 Sensor

    5.5 Access to the T12/T21/T22 sensor Remove the bypass flap as instructed in the Loosen the connection joint from the bypass Remove the insulation cover behind the bypass relevant section: flap. flap. ■ Set the unit to the service mode; ■...

  • Page 30: What To Do If A Malfunction Alert Occurs (Problem Solving)

    5.8 What to do if a malfunction alert occurs (problem solving) Error code Malfunctions in the motor of the bypass valve on the extract-air / outdoor-air side. BYPASS MOTOR 11 ERROR / BYPASS MOTOR 20 ■ For the right-hand unit: BYPASS MOTOR 11 is to the right; ERROR ■...
  • Page 31 Error code Malfunction in the pressure sensor for the exhaust air / supply air. PRESSURE 12 ERROR / PRESSURE 22 ERROR ■ For the right-hand unit: PRESSURE SENSOR 22 is to the right; ■ For the left-hand unit: PRESSURE SENSOR 22 is to the centre-left; Question Answer Action...
  • Page 32 Error code Malfunctions in the temperature sensor for the extract air / outdoor air upstream of the TEMP SENSOR 11 ERROR / preheater. TEMP SENSOR 20 ERROR ■ For the right-hand unit: TEMP SENSOR 11 is to the top-right of the unit; ■...
  • Page 33 Error code The preheater does not heat sufficiently. PREHEAT. ERROR ■ For the right-hand unit: PREHEATER and T21 are to the left; ■ For the left-hand unit: PREHEATER and T21 are to the right. Question Answer Action 1. Remove the electronics cap as described in the section “Access to the control PCB”. 2.
  • Page 34 Error code The preheater is not at the correct location, is defective or absent. PREHEAT. LOC. ERROR ■ For the right-hand unit: PREHEATER and T21 are to the left; ■ For the left-hand unit: PREHEATER and T21 are to the right. Question Answer Action...

  • Page 35: What To Do If A Malfunction (Or Problem) Occurs Without Error Alert (Problem Solving)

    5.9 What to do if a malfunction (or problem) occurs without error alert (problem solving) Problem: The display and the fan of the unit are not activated (the unit does not switch on). Question Answer Action Go to the next question. Are the fuses in the meter cupboard engaged? Engage the fuses in the meter cupboard.
  • Page 36 Problem: There is water leakage (condensation). Question Answer Action Go to the next question. Do the air ducts have vapour- proof insulation Fit vapour-proof insulation to the air ducts. Is the condensation water Go to the next question. running from the exhaust-air Connect the exhaust-air duct correctly.
  • Page 37 Problem: The non-wireless controls are not working as expected. Question Answer Action Is the bathroom control 1. If bathroom switch still on: Turn the bathroom switch off. active? (Active = bathroom 2. Wait until the timer of the bathroom control has finished. This takes no more than half an hour. switch on or recently on in Go to the next question.
  • Page 40 Zehnder Group Sales International • Zehnder Group Deutschland GmbH Almweg 34 · 77933 Lahr · Germany T +49 78 21 586-392 •· F +49 78 21 586-406 sales.international@zehndergroup.com • www.international.zehnder-systems.com...

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