Please keep next to the MVHR unit! novus (F) 300 Operating Instructions Mechanical Ventilation Heat Recovery Unit Status: 09.10 Device version: LEFT RIGHT Mounting position HORIZONTAL Components suitable for Passive House Dr. Wolfgang Feist Paul Wärmerückgewinnung GmbH August-Horch-Straße 7 08141 Reinsdorf Germany Tel.
Index 0 Preamble.................................................................................................................................... 3 1 Introduction............................................................................................................................... 3 1.1 CE Marking ................................................................................................................................. 3 1.2 1.2.1 1.2.2 1.2.3 Warranty and Liability ..................
3.5 3.5.1 3.5.2 3.5.3 3.5.4 3.5.5 3.5.5.1 3.5.5.2 Mounting of the novus .............................................................................................................. 23 Wall Mounting ........................................................................................................................... 23 Mounting on a Mounting Frame................................................................................................ 24 Connection of the Air Ducts ............................
0 Preamble Thank you for deciding on the heat recovery unit novus 300. The heat recovery unit novus 300 has been built according to the current state of the art and the acknowledged rules on safety. The device is subject to permanent improvement and development. Therefore, your device may differ slightly from the instructions.
1.2 1.2.1 Warranty and Liability General Information Our “general terms and conditions“ apply for the novus in the currently valid version. The warranty is aligned with the warranty terms of the manufacturer. This applies to mere replacement of the material and does not include the services. They apply only in case of proof of the performed maintenance according to our regulations by a skilled installer. 1.2.
• 1.3.2 • • 1.3.3 In order to guarantee that the device will be regularly controlled, it is recommended to conclude a maintenance contract. Your supplier can give you the addresses of authorised installers in your area. Safety Appliances and Precautions The novus cannot be opened without tools; It must be excluded that the fans can be contacted with the hand. Therefore, air ducts must be connected to the novus. The minimum length of the pipelines is 900 mm.
2.1.4 Fans The novus includes two maintenance-free 230 VAC radial fans with the integrated power supply unit and electronic commutation. The volume flow constant fans keep the air quantity at a constant speed for each selected fan rotary speed. The air quantity is also not affected by soiled filters. 2.1.5 Filters 2 filters in Z design of the filter class G4 are installed in the device. They consist of a synthetic filter mat in a polypropylene frame.
2.2.1.1 Display of the Operation and Failure Conditions Figure 3: LED-display of the LED control panel Display L1 ... L7 lamp display L1 + L7 glow L8 glow L8 flashes Function / Meaning LED lamp display no LED = fan speed 0 (fan off, standby) 1 LED (L1) = fan speed 1 2 LEDs (L1+L2) = fan speed 2 ... etc.
2.2.1.2 2.2.1.2.1 Description of the Control Functions with the LED Control Panel Setup of the Operating Mode The keys , , permit to set up the operating mode. The active operating mode is visualised by means of the respective LED of the operating mode key. 2.2.1.2.2 Fan Speeds / permit to select 7 fan speed. The current fan speed is displayed by means of a The keys LED lamp (L1 ... L7) up to selected speed inclusively. 2.2.1.2.
2.2.1.2.6 Configuration Mode Upper Temperature Threshold of Bypass After the pressing of the key combination flashing. and for at least 3 sec, the LED’s L8 and L10 are and , only the upper temperature threshold for the opening of the bypass can With the keys be adjusted in dependency on the exhaust air temperature between 21°C (LED L1) and 27°C (LED L7). The lower threshold has a fixed pre-set value of 18°C.
2.2.2 TFT Touchpanel Figure 4: TFT Touchpanel with stainless steel frame The 3.5 inch TFT display of the Touchpanel comprises 320x240 pixels and can be operated by touching it with the fingers (touch screen). In the upper status line of the start screen, the time, the respective menu speed in the form of a headline, as well as the remaining run-time of the filter, which is currently existent, are indicated.
2.2.2.1 Description of the Operating Functions with the TFT Touchpanel 2.2.2.1.1 Description of the Operating Functions of the Main Menu Figure 5: Menu structure of the main menu Figure 6: Start screen of the Touchpanel Fan speed 1: Smallest permanent fan speed. Fan speed 2: Intermediate permanent fan speed. Fan speed 3: Biggest permanent fan speed.
Boost ventilation: The boost ventilation mode activates an automatic timing program, in which the fan speed 3 is activated for a duration which can be preset (standard: 15 minutes). After this, the device switches back to the previous ventilation state. Un-occupied: When leaving the house, a reduced ventilation function can be adjusted by activating the function “un-occupied“. When returning, a repeated actuation of the key switches the ventilation device back to the previous ventilation state.
time: day, month, year, hours, minutes), individual values, which are to be adjusted, can be reached and modified using +/-. Modified data is no sooner applied as the enter key is pressed. 2.2.2.1.2 Description of the Operating Functions of the Submenu Three submenus are available: • Information • Settings • Setup 2.2.2.1.2.1 Information Submenu The submenu information visualises various parameter of information and setup as well as chosen factory presets (e.g. type of device).
Operating Hours Here, the total operating hours of the ventilation device and the fan operating hours (e.g. the hours, during which the fans were actually running) are indicated. Filter change period Here, the preset filter run-time and the current remaining run-time of the filter are indicated. Software versions Here, the type of device, as well as the hardware and software status of the controllers are indicated which are involved in the control process.
Figure 8: Menu structure of settings Submenu Key lock The operation of the TFT Touchpanel can be locked with the help of a preset password menu. The device can be operated no sooner with the help of the TFT Touchpanel as the password is entered again.
Choose language Menu is currently not available. Ground pipe diverter A motor-controlled flap which is temperature-controlled closes an optionally existent geothermal heat exchanger and opens the string of the direct outside air inlet. In this menu, the respective temperature thresholds for the opening and closing of this flap are adjusted. Supply heater An optional universal thermostat can be used for the supplementary heating of the supply air which flows out of the heat exchanger into the room.
By selecting a group of days (e.g. Monday-Friday), the modified data is assigned to each day of the group. The settings for the group "Monday-Friday" are thus identical with the days "Monday", "Tuesday"... "Friday" (and the group "Saturday-Sunday" is identical with the days "Saturday” and "Sunday" respectively).
Filters The filter run-time can be set here. An internal timer daily resets the remaining run-time of the filters by one day. After a filter change has been carried out, the remaining run-time of the filters can be reset to the value of the preset filter run-time. Fan speed The fan speed 1 and 3 can be set here in one percent steps between 17%...100%. Furthermore, the times for the fan speeds “un-occupied“ and “boost ventilation” are preset here. 2.2.2.1.2.
Figure 11: Filter change 4. Pull the filters C out of the filter slide-in compartments by means of the filter strap E. Figure 12: Filter strap 5. Push the new filters in the filter slide-in compartments with regard to the flow direction F. The filters are marked with an arrow according to the required flow direction. Figure 13: Filter flow direction 6. Seal the filter slide-in compartments with the filter cover caps. 7.
2.3.2 What to Do in the Event of a Failure? Please contact the installer immediately in the event of a failure. Make a note of the error display and the failure code respectively. Also make a note of the type of your novus (see identification plate on the surface of the device). The network connection has to be present at all times except for the novus being shut down because of a serious failure, the cleaning or changing of the filters or another compelling reason.
3 Notes for the Installer This section describes how to install and commission novus. 3.1 Principal Configuration of the System Figure 14: System outline with sensors and ventilation equipment The principal configuration of the system has a universal character and does not represent the system outline of the project-related ventilation system! It is meant to represent the plant-specific system structure of sensors and ventilation equipment. 3.
• • • • • • • • • • Two filter cover caps F Tightly closing motor bypass flap G Bypass flap covering H Highly efficient reverse flow channel heat exchanger or a membrane moisture heat exchanger I Two high capacity fans with constant speed J Heat exchanger covering K Foam cover plate for the fans L Control boards M Plastic cover plate for the control N Interface sheet O O E E F F C J A G J L N B M I K D Figure 15: Exploded view of the main components 3.
3.4 3.4.1 Installation of the novus Transportation and Unpacking Be careful when transporting and unpacking the novus. The package has to be removed only immediately before the mounting of the device! The open ends (stubs) have to be protected against dust and moisture before and during installation interruptions! 3.4.2 Checking of the Scope of Delivery If you detect any damages or incompletion to/of the delivered product, please contact the supplier immediately.
• • • 3.5.2 Mount the delivered mounting sheet with the lugs, which point upwards, horizontally to the wall with regard to the minimum distances of the types of mounting. Glue each piece of the enclosed, self-adhesive rubber buffer A in the bottom corner region on the rear panel of the device as shown in Figure 15 and Figure 16. Hang the novus on the mounting sheet by hooking the lugs in the slot openings each of which are situated at the top of the fold of the rear panel.
Figure 19: Detail of sectional drawing B-B • • Figure 20: Detail of sectional drawing C-C Thereby, the short side part has to be slid in the designated guiding from above perpendicular to the long side part. Mount the mounting sheet E with the lugs, which point upwards, to a long side part of the mounting frame F. In doing so, screw both of the sheet metal screws in the designated bore holes H of the side part.
3.5.3 Connection of the Air Ducts Observe the following points when mounting the air ducts: Figure 22: Tag of the connection of the air ducts • • • • • • • • • 3.5.4 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 identification plate). In order to ensure an easy maintenance, the air duct connections should be made directly at the device with flexible air hoses.
Figure 23: Condensate connection for vertical wall mounting (Example: RIGHT version ) Figure 24: Condensate connection for horizontal wall mounting (Example: HORIZONTAL - RIGHT version) A siphon has to be mounted to the 1¼-inch external thread of the condensate connection stub in such a way that the minimum requirements of the liquid gauge heights are met in accordance with the schematic diagram.
Figure 25: Electrical Connections Analogue and digital input and output signals of sensors (e.g. room air quality sensors) or actuators (e.g. intermitting ventilation sensing devices) are applied to the through terminal which is internally connected via a 7-wire cable to the respective terminal points of the master board. The through terminal is meant to be a transfer point and is situated underneath the interface sheet.
Figure 27: Control unit with stainless steel frame; in-wall base plate with control unit adapter; control unit engaged in the in-wall base plate (from left to right) The smaller side of the stainless steel frame of the ready-made TFT Touchpanel 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 Touchpanel.
By means of pressing the buttons + or - , the set value of the system-related air volume flow is adjusted in percent according to Chart 1.
Figure 28: Menu structure of setup submenu Sensor type The sensor type of the operating mode automatic sensor can be determined in this menu. Reset factory Data Factory presets, which may have been partly overwritten by the service technician when commissioning inputs can be reset in this menu. Afterwards the device has to be turned on and off. Ground pipe diverter The menu is not configurable at present.
Bypass A motor temperature-controlling bypass flap has the air flow flow through or past the heat exchanger. The extract air temperature thresholds and the end positions of the bypass flap are set here. Furthermore, the service technician can preset in this menu if a bypass flap is available at all.
In the event that the threshold value falls below any of the frost protection thresholds, the fans will be deactivated, the bypass flap will be closed and an error message occurs. The frost protection threshold of the minimum intake air temperature depends on the frost protection operating mode and the type of device.
3. Push both snap locks B in order to release the front plate. Figure 30: Pressing of the snap locks 4. Remove the front plate by approximately 5 cm from the device in the area of the snap locks and afterwards push the front plate towards the air duct connections from the slot openings of the housing. Figure 31: Removing of the front plate 5. Pull the foam covering D of the heat exchanger by means of the strap C out of the foam housing.
Figure 32: Foam covering D with strap C 6. Pull the heat exchanger out of the foam covering by means of the strap. 7. Clean the heat exchanger if needed. Cleaning of the reverse flow channel heat exchanger: • For this purpose immerse the heat exchanger several times in warm water (maximum 40 °C). • Afterwards rinse the heat exchanger thoroughly with warm tap water (maximum 40°C). • Hold the coloured sides of the heat exchanger with both hands and shake it out.
3.10 Visualisation of Errors with the TFT Touchpanel A plain text visualisation of errors is only possible with the TFT Touchpanel. 3.10.1 Sensor Error of the Temperature Sensors T1…T4 Error-causing event: In the event of a broken sensor or a short circuit of a temperature sensor, a warning triangle appears at the top right of the screen .
• Communication error Response: Supply air fan and extract air fan are deactivated. The bypass is closed. Requirement for reset: After turning the ventilation device off and on (restart), the supply air fan and the extract air fan start again and the bypass flap moves to the position where it stood before the error triggering took place. 3.10.
Appendix 1: Circuit Diagram of the novus
F1 315 mA X1 4 x protection conductor PE 1 2 3 4 4 x PE F2 5A mains supply (230 VAC, 8 A) L N 5 6 power supply fan slave N, 230 VAC connected L’ N 7 8 230 VAC, 5 A (geschaltet) NO CH NC 9 10 11 230 VAC, 5 A freely programmable potential-free contact (relay) closer changer opener 0..10V oder 4..20mA 0..10V oder 4..
X1 1 2 3 4 PE PE PE PE voltage supply PE through terminal PE PE PE 5 6 L N 230 VAC 0 7 8 L’ N’ 230 VDC, relay-switched 230 VDC, relay-switched X1 9 10 11 NO CH NC signalling contact normally open contact change-over contact normally closed contact X1 12 13 14 15 DIO1 GND DIO2 GND digital interfaces 1 and 2 digital input/output 1 referential potential (ground) digital input/output 2 referential potential (ground) X2 1 2 3 4 DIO3 GND DIO4 GND digital interfaces 3 and 4 digital input/output 3
230 VAC tap 2 1 2 X3 supply 6 4 1 2 3 456 S1 supply fan * Bypass temperature sensors GND X8 BUS interface RS485 C41 +5V DC X9 programming interface (internal:controller, EEPROM) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 X1 potentiometer end X4 4 x protection conductor PE + fan 1, +VDC mass/GND rotation speed1 (Hall) fan control 1 Bypass + Bypass potentiometer beginning potentiometer wiper X5 ext. Relais +24VDC ext.
X1 fan 1 (LEFT: supply air, RIGHT: extract air) + 48 VDC referential potential (ground) rotary speed (Hall) 0...
F1 315 mA X1 1 2 3 4 4 x PE F2 5A 5 6 230 VAC, 5 A (connected) 7 8 Freely programmable potential-free contact (relay) Closer Changer Opener NO 9 CH 10 NC 11 230 VAC, 5 A DI: max. 24 VDC high >3,5V, low <1V ST 12 GND 13 14 15 0..10V or 4..20mA 0..10V or 4..20mA Prog 0..10V or 4..
Date: 02.09.10 Technical Data Subject to change in the interest of technical progress.
MVHR (Mechanical Ventilation Heat Recovery) components Heat exchanger Fans: Filters: Housing: Duct connections: Condensate drain: Bypass: Weight: Electrical connection: Protection class (acc. to EN 60335): IP Code (acc.
Date: 18.03.10 Checklist A Maintenance by customer Subject to change 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 I II III IV 201... 201... 201... 201... 201... 201... 201... 201... 201... 201... 2. Clean extract air prefilter / filter in extract air valves ( change approx. every 2 months) Quarter Year I II III IV 201... 201... 201... 201... 201... 201... 201... 201... 201...
Date: 18.03.10 Subject to change in the interest of technical progress. Checklist B Maintenance by skilled personnel Maintenance − − − − No . 1 Inspection of MVHR unit acc. to DIN 1946-6 appendix E (normative) and appendix F (informatory) Hygiene check acc. to VDI 6022, Item 5.3.
Air Flow Report Date: 18.03.2010 Subject to change in the interest of technical progress. Operating condition, functional check1), instruction Customer data Surname: First name: Tel: Street: ZIP: Town: Serial-No.: Built: Construction project: MVHR-type: Measured data Measuring equipment used: Fault descriptions during measurement: Indoor temperature2) Outdoor temperature2) Weather2) Filter condition on calibration clean used for approx. ...
Commissioning and handover certificate Date: 18.03.10 Subject to change in the interest of technical progress. Completeness and performance verifications acc. to DIN 1946-6 Customer data Surname: First name: Tel: Street: ZIP: Town: Serial-No.: Built: Construction project: MVHR-type: Completeness No.
EC Declaration of Conformity Paul Wärmerückgewinnung GmbH August-Horch-Straße 7 08141 Reinsdorf Germany phone: +49(0)375 - 303505 - 0 fax: +49(0)375 - 303505 -55 EC Declaration of Conformity Name of the device : Heat recovery units: novus 300 product line Complies with the directives : Machinery Directive Low Voltage Directive EMC Directive (2006/42/EC) (93/68/EC) (89/336/EC) Reinsdorf, 24 März 2010 Paul Wärmerückgewinnung GmbH Eberhard Paul General Managing Director
