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Summary of Contents for Zehnder Rittling ComfoAir Q
- Page 1 Ventilation system Zehnder ComfoAir Q Installer manual Heating Cooling Fresh Air Clean Air...
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Page 2: Foreword
Warranty and liability conditions. With this document you can install, commission and EEC declaration of conformity. perform the maintenance of the ComfoAir Q in a safe How to replace the filters in the unit. and optimal manner. In this document the ComfoAir How to clean the valves and/or grilles in the ventilation system. -
Page 3: Table Of Contents
Safety instructions ................................ 5 Installation conditions ..............................5 Transport and unpacking ............................... 5 Technical specifications ..............................6 4.1 ComfoAir Q 350 ..............................6 4.2 ComfoAir Q 450 ..............................7 4.3 ComfoAir Q 600 ..............................7 4.4 Unit configuration ..............................8 4.5 Dimension sketch .............................. - Page 4 Maintenance procedures ............................. 24 8.1 Procedure for opening the unit ..........................24 8.2 Maintenance of the casing ........................... 25 8.3 Maintenance of the heat exchanger ........................25 8.4 Maintenance of the fans ............................26 8.5 Maintenance of the modulating by-pass valves ...................... 27 8.6 Maintenance of the pre-heater ..........................
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Page 5: Safety Instructions
the maximum power of the option box. You can 1 Safety instructions find the technical specifications of the option box � Always obey the safety regulations, warnings, in the chapter “Wiring diagram option box”. comments and instructions given in this �... -
Page 6: Technical Specifications
Weight 50kg Outdoor air: G4 / F7 15 Filter class Extract air: G4 4.1 ComfoAir Q 350 ComfoAir Q350 GB ST Lw in dB(A) reference 10ˉ¹²W Casing radiation measured according to ISO 3741:2010 Supply noise and extract noise measured according ISO 5135:1997 (values include end duct correction) SFP in Wh/m³... -
Page 7: Comfoair Q 450
4.2 ComfoAir Q 450 ComfoAir Q450 GB ST Qv (m³/h) SFP (W/l/s) Lw (dB[A]) cos φ Lw, supply Lw, extract Lw, casing m³/h Wh/l/s dB(A) dB(A) dB(A) 0.40 0.33 0.46 0.54 0.48 0.64 0.49 0.67 0.52 0.92 0.54 1.01 0.55 1.12 0.53 1.09 0.54 1.26 0.55 1.33... -
Page 8: Unit Configuration
4.4 Unit configuration Position Part Semi-transparent visor for access to the display and the filter caps. 2 filter caps for easy access to the filters. 2 filters for air purification. Cable tray cover for cover and protection of the connected cables. Identification plate detailing information on the unit (not visible). -
Page 9: Dimension Sketch
4.5 Dimension sketch 10/25 ComfoAir Q 350 ComfoAir Q 450 / ComfoAir Q 600 EN - 9... -
Page 10: Service Parts
4.6 Service parts The service parts mentioned below can be ordered as a special service set from Zehnder. Each set will be supplied with its own service instruction explaining how to replace the part. Please check the pricelist of the supplier for the article codes and prices of all available sets. Position Part Filter cap set (2x) -
Page 11: Wiring Diagram Main Board
4.7 Wiring diagram main board Legend: Meaning Code Meaning Code Orientation: Right Orientation: Left Green / Yellow DISPLAY Display screen Display screen N / BU Blue Not applicable Not applicable L / BK Brown or Black Pre-heater Pre-heater White Modulating by-pass actuator Modulating by-pass actuator Exhaust motor Supply motor... -
Page 12: Wiring Diagram Option Box (Optional)
4.8 Wiring diagram option box (optional) Technical specifications Code Meaning Interface Umax Imax Lmax-wiring Bathroom switch Digital 3.3Vdc External filter error sensor Digital 3.3Vdc Standby switch Digital 3.3Vdc Not applicable Analog 3.3Vdc Not applicable Digital 3.3Vdc Not applicable 230Vac switched 230Vac Error contact Potential free contact... -
Page 13: Installation Procedures
5 Installation procedures 5.1 Installation on the wall 635mm ≥1065mm ≥250mm Attach the mounting bracket to the Hang the unit on the mounting bracket Install the unit against a wall wall. fixed to the wall. with a minimum mass of 200 kg/m 2 . -
Page 14: Installation On The Floor
5.2 Installation on the floor Example of instruction 1100 Use a Zehnder mounting frame on the Install the mounting frame as Place the unit on the mounting frame. floor (available as an optional extra) instructed in its installation � Make sure the unit is locked in for walls with a mass of less than instructions. -
Page 15: Installation Of The Condensation Drain
5.3 Installation of the condensation drain 1 1 / 4 “ 32mm min 90mm 1 1 / 4 “ 32mm min 90mm Enthalpy exchanger installed The condensation created by the unit must be drained off frost-free, at a gradient and incorporate When the unit is fitted with an enthalpy exchanger an air seal. -
Page 16: Installation Of The Air Ducts
5.5 Installation of the air ducts � Zehnder recommends that you fit thermal and damp-proof insulation to the supply duct from the Air duct systems unit up to the supply valves and or grilles. This will prevent unnecessary temperature loss in the summer and winter;... -
Page 17: Installation Of The Valves And/Or Grilles
5.6 Installation of the valves and/or grilles Example valve Example grille � Install supply and extract valves and/or supply and extract grilles (e.g. in an open living kitchen) at least 1m from each other. This will prevent the supply air short circuiting with the extract air; �... -
Page 18: Commissioning Procedures
6 Commissioning procedures Zehnder recommends cleaning the air ducts before commissioning the unit when the dwelling is being occupied. This will prevent damage to the furniture from building dust blown out of the air ducts. Connect the power to the unit. Open the semi-transparent visor. -
Page 19: Operation
7 Operation 7.2.2 How to access the installer settings > MENU > INSTALLER SETTINGS 7.1 Overview of the display 1. Select SHIFT for at least 4 seconds in the main screen. 2. Select the password with the up and down button. 3. -
Page 20: Menu Structure Installer Settings
7.3 Menu structure INSTALLER SETTINGS The installer settings menus are only visible when You can find the explanation of all other menus, e.g. the installer password is active. In the chapter “How the advanced menu, in the user manual. Please help to access the installer settings”... -
Page 21: Main Board Settings
Function To set the airflow of the position switch. � PRESET A: set the airflow of the absent position (Default ComfoAir Q 350: 20 l/s) (Default ComfoAir Q 450: 20 l/s) (Default ComfoAir Q 600: 20 l/s) � PRESET 1: set the airflow of the low position... -
Page 22: Option Box Settings 3
OPTION BOX SETTINGS 3 7.3.3 > MENU > INSTALLER SETTINGS > OPTION BOX SETTINGS 3 Menu item Function To set the time (delay timer) before the air volume will switch to PRESET 3 after closing the bathroom switch contact. (Default: 5 min) SWITCH-ON DELAY If the bathroom switch is stopped within the set time the unit will act like the bathroom switch has never been switched on. -
Page 23: Log Out
Menu item Function 0-10V 4 3 To set the control options of the fourth 0-10V input. To set the required input signal to get 0% output signal from the unit; (Default: 0V) INPUT AT 0% If positive control is necessary the input at 0% must be lower than the input at 100%: If negative control is necessary the input at 0% must be higher than the input at 100%. -
Page 24: Maintenance Procedures
You can find the maintenance procedures of the 8 Maintenance procedures ancillaries connected to the unit in their relevant manuals. You can get a copy of a Zehnder manual Follow all maintenance procedures given in from Zehnder. this chapter and in the user manual. If the maintenance is not performed periodically If it is necessary to replace a part you can order a the performance of the ventilation system will... -
Page 25: Maintenance Of The Casing
8.2 Maintenance of the casing Inspect the unit casing at least once every 4 years. Remove the front cover as instructed Perform the next checks: Treat any signs of corrosion and other in the chapter procedure for opening � Check the seals for damage; damage directly and appropriately. -
Page 26: Maintenance Of The Fans
8.4 Maintenance of the fans Inspect the fans at least once every 4 years. Remove the heat exchanger as Perform the next checks: If necessary, clean the fans and flow instructed in the maintenance � Check the flow grid for dirt and grid. -
Page 27: Maintenance Of The Modulating By-Pass Valves
8.5 Maintenance of the modulating by-pass valves Inspect the modulating by-pass valves at least once every 4 years. Remove the heat exchanger as Inspect the modulating by-pass valves Treat any signs of dirt or damage instructed in the maintenance for dirt and damage. directly and appropriately. -
Page 28: Maintenance Of The Condensation Drain
8.7 Maintenance of the condensation drain Inspect the condensation drain at least once every 4 years. Example siphon Example siphon Disconnect the condensation drain. Perform the next checks on the Resolve any seen problems. condensation drain siphon: � Check whether the drain is still open by adding water to the siphon;... -
Page 29: Procedure For Ending The Maintenance
8.9 Procedure for ending the maintenance During installation: � Set the unit in SERVICE MODE when the modulating by-pass valves are blocking the installation of the heat exchanger; � Tighten all screws manually (max. 1.5 Nm); � Place all cables in their guiding channels; �... -
Page 30: Malfunction Procedures
9. Malfunction procedures Always take ESD-inhibiting measures when dealing with electronics, such as wearing an Always disconnect the power supply of the unit antistatic wristband. The electronics can get before you start working on the unit. The unit damaged by static charges. can cause personal injury when it is open while running. -
Page 31: How To Gain Access To The Main Power Fuse Of The Unit
9.3 How to gain access to the main power fuse of the unit Open the semi-transparent visor. Pull the cable tray cover forwards. Remove the 6 screws of the cable tray. Carefully lift up the cable tray. 9.4 How to change the location of the pre-heater Open the semi-transparent visor. -
Page 32: How To Gain Access To The Top-Section Sensor
9.5 How to gain access to the top-section sensor Remove the heat exchanger as Remove the filters (and when present Pull the sensor, from the inside of the instructed in the maintenance the pre-heater). unit, down. instruction of the heat exchanger: Then remove the sensor connector. -
Page 33: How To Gain Access To The Mid-Section Sensor
9.7 How to gain access to the mid-section sensor Remove the modulating by-pass valve Release the connection joint of the Remove the insulation cover behind as instructed in its relevant chapter: modulating by-pass valve. the modulating by-pass valve. � Open the semi-transparent visor; �... -
Page 34: Malfunction Alerts On The Display Of The Unit
9.8 Malfunction alerts on the display of the unit When there is a malfunction in the unit the LED next to the display of the unit will flash. When accessing the display the corresponding malfunction code will be displayed. AUTO sensor Tu 14:02 MENU... -
Page 35: Malfunction Alerts On The Comfosense C
9.9 Malfunction alerts on the ComfoSense C 9.12 9.12 Malfunction alerts on the Control App Malfunction alerts on the Control App When a malfunction code appears The same malfunction code which on the ComfoSense C the can appear on the display of the unit corresponding malfunction code will also appear in the control app. -
Page 36: What To Do In The Event Of A Malfunction Alert (Troubleshooting)
9.14 What to do in the event of a malfunction alert (troubleshooting) Malfunction code The exhaust / supply airflow is not reaching its set point. AIRFLOW_EHA ERROR / AIRFLOW_SUP ERROR. Question Answer Action Is one or more of 1. Set the valves and/or grilles to the correct settings. the valves and/or 2. - Page 37 Malfunction code The exhaust / supply air fan has a malfunction. FAN_EHA ERROR / FAN_SUP ERROR. Question Answer Action not applicable 1. Disconnect the power from the unit. applicable 2. Access the control PCB as instructed in the chapter “How to gain access to the control PCB”. 3.
- Page 38 Malfunction code The extract / outdoor air humidity sensor is detecting an incorrect humidity. HUMID_ETA ERROR / HUMID_ODA ERROR Question Answer Action Is the humidity 1. Increase the ventilation to maximum. protection on? 5 2. Reset the errors as instructed in the chapter “How to reset errors”. 3.
- Page 39 Malfunction code No communication between the option box and the unit. OPTION_BOX CONNECT ERROR. Question Answer Action not applicable 1. Access the ComfoNet connectors as instructed in the chapter “How to gain access to the ComfoNet applicable connectors on the unit”. 2.
- Page 40 Malfunction code The temperature sensor of the ComfoFond-L Q / post-heater is detecting an incorrect GOUND_HEAT_TEMP ERROR / temperature. POSTHEAT_TEMP ERROR Question Answer Action Is the 1. Solve the problem for the extreme temperature. temperature in 2. Go to the next question. the ComfoFond-L 1.
- Page 41 Malfunction code There is no communication between the pre-heater and the unit. PREHEAT_PRES ERROR. Question Answer Action not applicable 1. Disconnect the power from the unit. applicable 2. Access the control PCB as instructed in the chapter “How to gain access to the control PCB”. 3.
- Page 42 Malfunction code The extract / outdoor air sensor has a malfunction. SENSOR_ETA ERROR / SENSOR_ODA ERROR. Question Answer Action not applicable 1. Disconnect the power from the unit. applicable 2. Access the control PCB as instructed in the chapter “How to gain access to the control PCB”. 3.
- Page 43 Malfunction code The exhaust / supply air sensor has a malfunction. SENSOR_EHA ERROR / SENSOR_SUP ERROR. Question Answer Action not applicable 1. Disconnect the power from the unit. applicable 2. Access the control PCB as instructed in the chapter “How to gain access to the control PCB”. 3.
- Page 44 Malfunction code The modulating by-pass actuators have a malfunction. TEMPCONTROL_SUP ERROR Question Answer Action not applicable 1. Inspect the modulating by-pass valves as instructed in the chapter “Maintenance of the modulating applicable by-pass valves”. 2. Remove the modulating by-pass valves as instructed in the chapter “How to remove the modulating by-pass valve”.
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Page 45: What To Do In The Event Of A Malfunction (Or Problem) Without A Malfunction Alert (Troubleshooting)
Turn the power in the fuse box on. Do you have power in the rest of the 1. If the unit is a ComfoAir Q 350 get a F5010 fuse. Otherwise get a F5015 fuse. dwelling? 2. Access the main power fuse as instructed in the chapter “How to gain access to the main power fuse of the unit”. - Page 46 Problem: There is too much noise. Question Answer Action Is the noise a whistling noise? Locate the air gap and seal it. Go to the next question. Is the noise a slurping noise? 1. Check the condensation drain. 2. Go to the next question. Go to question 4.
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Page 47: Available Operating Devices
10 Available operating devices Appearance Name Remark Example Zehnder ComfoSense C 67 You can connect the ComfoSence C directly to the unit via a ComfoNet connection. Zehnder ComfoSwitch C 67 You can connect the ComfoSwitch C directly to the unit via a ComfoNet connection. Zehnder Control App The Control App is available for Android and IOS devices. -
Page 48: Optional Ancillaries
A connected option box is necessary to control the ComfoFond-L Q. Zehnder ComfoCool Q600 You can connect the ComfoCool Q600 directly to the unit via a ComfoNet connection. Zehnder ComfoAir Q You can install the pre-heater on site into the unit. pre-heater Zehnder Option box You can connect the option box directly to the unit via a ComfoNet connection.
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