VTR_300_Installation_Service_208348_CE_GB_A003
Contents
1. 1 Including hatch 2 Including bracket SAVE VTR 300 B Installation and Service 208348 4 Systemair AB 4 4 2 Dimensions and Weight R model l c x gt E Ee systemair gt Fig 2 Dimensions and weight R model Measures in mm and weight in kg A B C D E F G H J K 762 486 4232 842 804 824 758 354 255 104 206 L M N O P R S T U V Weight 311 258 97 141 216 296 490 789 1206 28 66 1 Including hatch 2 Including bracket SAVE VTR 300 B 208348 5 Installation and Service Systemair AB 4 4 3 Duct connections Fig 3 Duct connections e j a Systemalr Position Description viewed from the front R Right hand model Supply air connection is situated on the right hand side of the unit unit viewed from the front L Left hand model Supply air connection panel is situated on the left hand side of the Symbol Description Symbol Description Symbol Supply air Outdoor air Zs Exhaust air Extract air 4 4 4 Power consumption and fuse size Description Cooker hood air Re heat2. ACCEPTED 6 The Start up Wizard starts after approximately 10 seconds 6 3 System curves A system requires different pressures at different airflows which can be represented by a system curve The intersection between the system line and the fan curve is the unit s working point It is showing the airflow the system is going to have Every change in the pressure of the ventilation system will give rise to a new system curve If you choose to do the commissioning with l s or m3 h you need to know the system s pressure in order to choose a suitable system curve 6 3 1 Supply air F7 type filter 700 600 500 400 LAN Pa 300 200 5V 100 100 120 Fig 5 Supply air system curves F7 type filter SAVE VTR 300 B 208348 13 140 Installation and Service Systemair AB 6 3 2 Supply air G3 type filter 700 600 500 400 Pa 300 200 100 l s Fig 6 Supply air system curves G3 type filter 6 3 3 Extract air G3 type filter Fig 7 Extract air system curves G3 type filter 6 4 Airflow settings The airflow can be set by either I s m3 h or a percentage e IfAirflow System curve is chosen the settings will be in l s m3 h and system curves are selected e If Airflow is chosen the settings will be in percentage System curves are not selectable The airflow may be adjusted i
3. SAVE VTR 300 B Installation and Service Systemair is not liable or bound by warranty if these instructions are not adhered to during installation or service 2014 Copyright Systemair AB Systemair AB can accept no responsibility for possible errors in catalogues brochures and other printed material Systemair AB reserves the right to alter its products without notice This also applies to products already on order provided that such alterations can be made without sub sequential changes being necessary in specifications already agreed All rights reserved C eta 208348 EN_GB 7 Document in original language 22 10 2014 A003 Contents 1 Declaration of Conocio A o ats 1 2 WaAINING iii A A end ee ida eed eee a Ane a 2 SADOUt this DOCUMENT A AS catia Seda tds dees 2 4 Product INTormations shrs a2 chets dd a aa a A cid 2 A A E E RO 2 4 2 Left and Right Model vicio a 3 4 3 TANS POM and Stage reais reati ahs bd 3 AA Technical data ti A A A AS ADA 4 O InStallationics o aida cd tes Goer 7 ST UNPACKING 923 sctscesessatsecesetth yechts a iris 7 5 2 Where how to Install seneki aia li ety eee 7 5 3 Installation procedure cccccccecceeeee ce a ee Aa a aeae e aa a aia a aa 7 5 4 Condensation drainage cccceceeeeeeceeeeee cece eeeeeee eee eeeee aaa RAAEN ERANA EEEL 8 6 COMMISSIONING 42222 cs ces ERER aE A dat 9 6 1 Control paneloc id ii oo ee teil th AA ill eth 9 6 2 Start WP WIZ sc
4. units in the online catalogue at www systemair com Functions Factory reset Use this dialogue frame to return to factory settings Set YES or NO Really reset YES NO Factory reset Note This will erase all your personal settings that have been done for the unit Service Language Use this dialogue frame to Language return to select your local Language ENGLISH language Set Language by turning the SELECTION knob Service Version VSR Shows current software Versions 150 B versions CD EC Appl E XXX XXX Note Boot KRA RER The software versions are just an example and may differ in a specific unit Service Alarms Shows the alarm list and Alarms which alarms that have been Fan Y triggered indicated by Y Frost N See alarm list chapter 9 5 Damp Y Pb Fail N Temp N Filter Y SAVE VTR 300 B 208348 33 Installation and Service Systemair AB 9 Service 9 1 Warnings Make sure that the mains supply to the unit is disconnected before performing any maintenance or electrical work All electrical connections and maintenance work must be carried out by an authorized installer and in accordance with local rules and regulations A Warning The system should operate continuously and only be stopped for maintenance service Although the mains supply to the unit has been disconnected there is still risk for injury due to rotating parts that have not come t
5. O O 000 Sl E re o000090000 E INTERLOCK HUMIDIFIER No AA GND WC BND WH A DAMER b 4 RPM2 SPD2 REFZ GND RPMI SPDI REFI GND AN GND A2 GND A3 GND AM GND A5 GND Fig 9 Print card Position Description 1 Main print card 2 Print card for electrical heater 3 Connection to external control panel connected to unit casing 4 Mains supply connection between main print card and electrical heater print card 5 Terminals for Al 1 5 temp sensors and motor control 6 Terminals for external connections 7 Terminals for mains supply connections 8 Terminals for digital inputs DI 1 7 9 Terminals for internal control panel 10 Terminals for regulated power supply to electrical heater 11 Modbus connection See User manual Modbus for details SAVE VTR 300 B 208348 21 Installation and Service Systemair AB 6 9 2 External connections on the print card Connection terminals for external equipment can be found on the main print card inside the electrical connection box ORDO OOO OO NO CMMN NC INTERLOCK HUMIDIFIER is ALARM GND WC GND WH PAS Fig 10 External connections on the print card Position Description Remark 1 Outdoor exhaust air damper Normally open 230 V 1 max 1 A 2 Outdoor exhaust air damper Reference 3 Outdoor exhaust air damper Normally closed 230 V 1 max 1 A 4 S
6. Service Week program Week program Week program Program how you want the unit to operate according Week program Day MON to the week schedule It s Per 1 07 00 16 00 possible to set 2 periods per Per 2 00 00 00 00 day Set week day and time interval for the time you want the unit to be in ON mode Week program Airflow Use this dialogue frame to determine the ON and OFF Airflow On level function for the fans in the low nom high auto week schedule Off level off low nom high Set ON level Choose between Low Nom High or Auto Default value Nom Set OFF level Choose between OFF Low Nom or High Default value Low SAVE VTR 300 B 208348 25 Installation and Service Systemair AB systemair Menu Level 1 Menu Level 2 Menu Level 3 Explanation Service Airflow log Airflow log 1 5 NO YES 140 140 Level Reset SF 140 EF 140 Use this dialogue frame to see how the fans have operated during the time h they have been active The airflow are shown in 5 different levels e Level 1 0 e Level 2 1 29 e Level 3 30 44 e Level 4 45 59 e Level 5 60 100 Choose between the levels to see the time in hours the fans have been active in the different levels Reset Yes resets the SF and EF time in the left column for all levels The right column continues to count ahead and can not be reset Note Factory reset s
7. New sets of filters can be acquired from your installer or wholesaler Filter quality G3 can be installed for supply air filtering The filter type is labelled on the top of the filter Note If type G3 filters are used instead of F7 the system curve for Supply Fan SF must be changed For G3 type filter 11 20 for F7 type filter 1 10 See chapter 6 3 9 3 3 Heat exchanger SAVE VTR 300 B is equipped with a rotating heat exchanger Required supply air temperature is therefore normally maintained without adding additional heat The heat exchanger is removable for cleaning and maintenance see User Manual for more information SAVE VTR 300 B Installation and Service 208348 35 Systemair AB 9 3 4 Print card The main print card controls the functions and set temperatures of the unit It is possible to connect external accessories to terminals on the print card and also communication to BMS Building Management System Modbus communication via RS 485 See wiring diagram for more information 9 3 5 Temperature sensors Four temperature sensors NTC 10 kQ at 25 C are included in the unit from factory and positioned in the corresponding air chambers The sensors are connected to the main print card See wiring diagram for more information 9 3 6 Electrical Re heater battery The re heater battery is positioned in the supply air chamber The re heater is activated by a relay and switches on if the supply air temperatur
8. a E ben Gamat aee eauht ae 38 9 6 Replacing rotor drive belt 2 cceccccecseecedeentesceeecnteseeceteneseecatcuesegeatcudecasaneudenenancedencaancueens 39 1 Declaration of Conformity Manufacturer Systemair AB Industrivagen 3 SE 739 30 Skinnskatteberg SWEDEN Office 46 222 440 00 Fax 46 222 440 99 www systemair com hereby confirms that the following product Heat recovery ventilation unit SAVE VTR 300 B The declaration applies only to product in the condition it was delivered in and installed in the facility in accordance with the included installation instructions The insurance does not cover components that are added or actions carried out subsequently on the product Comply with all applicable requirements in the following directives e Machinery Directive 2006 42 EC e Low Voltage Directive 2006 95 EC e EMC Directive 2004 108 EC The following harmonized standards are applied in applicable parts EN ISO 12100 2010 Safety of machinery General principles for design Risk assessment and risk reduction EN 13857 Safety of machinery Safety distances to prevent hazard zones being reached by upper or lower limbs EN 60 335 1 Household and similar electrical appliances Safety Part 1 General requirements EN 60 335 2 40 Safety of household and similar electrical appliances Part 2 40 Particular requirements for electrical heat pumps air conditioners and dehumidifiers EN 62233 Measurement methods fo
9. between Y and N If Y is selected the fans can be turned off by turning the SELECTION knob to empty fan Functions Analog input Analog input gt SS 20 0 te GETS 2 35 0 Unused Unused OT FPS 0 0 I 2 3 4 2 50 OS 105 Shows analogue inputs from active temperature sensors SS Supply air temp sensor ETS Extract air temp sensor FPS Frost protection sensor OS Outdoor air temp sensor OT Overheat protection sensor Functions Analog output Analog output A01 auto man off A02 auto man off A03 auto man off Shows current analogue outputs in 0 10 V to hot cold water actuator or electrical re heater and bypass damper Set AO1 Analogue output to hot water actuator or electrical re heater to auto man or off Default value auto Set AO2 Analogue output to cold water actuator to auto man or off Default value auto Set AO3 Analogue output to bypass damper to auto or man Default is auto Selecting man enables the user to manually control the actuator damper with a 0 10 V signal OV completely closed and 10 V completely opened actuator bypass damper When used on the bypass damper the unit can be forced to go to summer mode operation 10 V SAVE VTR 300 B 208348 28 Installation and Service Systemair AB systemair Menu Level 1 Menu Level 2 Menu Level 3 Explanation Functions Digital input Shows current setting of the digita
10. flow heat exchangers 5 Select if unbalanced airflows are allowed in the building during the defrost cycle Choose between YES and NO Default is YES SAVE VTR 300 B Installation and Service 208348 17 Systemair AB 6 6 Programming the Week schedule Set the week schedule according to below procedure 1 Go to the service menu by using the SELECTION knob LFX Service 2 Enter the service level by typing the password default 1111 Use the SELECTION knob for each digit and confirm with the ENTER button after each set digit and choose No for the system not be locked Password Password XXXX Locked YES NO 3 Go to Week program Service Week program 4 Choose Week program again Week program Airflow 5 Set week day and time you want the unit to be in ON level Two periods per day can be programmed The rest of the time the unit will be in OFF level Week program Day MON Per 1 07 00 16 00 Per 2 00 00 00 00 6 Go back to the previous dialogue frame with the RETURN button and go down to Airflow Week program Set which airflow the fan is supposed to be running in the OFF level choose between OFF Low Nom or High Note If an electrical re heater battery is installed and active and the unit is shut down from the control panel for example by choosing OFF When the unit is in OFF level in the week program the fans will continue to run for 3 minutes
11. installation of the unit and complete ventilation system must be performed by an authorized installer and in accordance with local rules and regulations 5 Remount the heat exchanger if it was removed before the installation See chapter 5 3 1 steps 4 and 5 5 3 1 How to remove and remount the heat exchanger 1 Open the front hatch 2 Disconnect the heat exchanger power supply and the rotor sensor Both cables are found beside the heat exchanger 3 Pull out the heat exchanger Some force may be needed 4 Remount the heat exchanger Don t forget to reconnect the heat exchanger power and sensor cables 5 Close and lock the front hatch 5 4 Condensation drainage In general no condensation drainage is needed for rotational heat exchangers at dry conditions However if a lot of humid air is present in the residence a condensation drainage might be needed Drainage connection is available as an accessory and can be ordered separately Installation instructions for the drainage are enclosed in the drainage pipes delivery Note The drainage connection is plugged in the bottom of the unit at delivery To use the drainage remove the rubber seal and connect the drainage pipe Connect the drainage pipe to the sewer The water can not be led straight to the sewer without a water trap SAVE VTR 300 B Installation and Service 208348 8 Systemair AB 6 Commissioning Connect the unit electrically to the mains with the encl
12. remains check the rotor sensor SAVE VTR 300 B Installation and Service 208348 41 Systemair AB Systemair AB reserves the right to make changes and improvements to the contents of this manual without prior notice systemair Systemair AB Industrivagen 3 SE 739 30 Skinnskatteberg Sweden Phone 46 222 440 00 Fax 46 222 440 99 www systemair com 208348
13. should be provided with dampers in exhaust and fresh air ducts to avoid cold draught and risk of condensation when the unit has been stopped The fan can be set to OFF by activating manual fan stop See the Installation and Service manual chapter Service menu overview Manual fan stop 8 3 Manual and automatic summer mode Manual summer mode occurs if no temperature step is selected The temperature symbol on the main menu is then completely empty If the electrical re heater is activated it will switch off during manual summer mode Manual summer mode goes automatically to step 1 setpoint 12 C after two minutes if the supply air temperature is 5 C or below If a water heater battery is installed and activated the manual summer mode goes automatically to step 1 setpoint 12 C if the outdoor air or supply air temperature is 5 C or below The unit will automatically alternate between winter operation with heat recovery and summer operation without heat recovery 8 4 Cool recovery If the outdoor air is warmer than the extract air and the supply air is above the setpoint cool recovery occurs This condition blocks the heat regulation process 8 5 Service menu overview Enter the service menu by selecting the service symbol in the display Menu Level 1 Menu Level 2 Menu Level 3 Explanation Service Password Enter the service level Password Password XXXX by typing 1111 Use the Locked YES NO SELECTION
14. the type of fan control you prefer System curve l s or percentage and press ENTER Fan control by Airflow see step 7 Fan control System curve 5 Fan control by Airflow l s When settings are done press ENTER Choose System curve Fan control Airflow System curve SF 2 EF 2 6 Press RETURN once the system curves has been set and goto Airflow EF SF Airflow 1 s or m3 h 1 s When settings are done press ENTER Nom 82 82 High 100 100 Low 49 49 7 Fan control by Airflow Airflow EF SF When settings are done press ENTER Nom 50 50 High 100 100 Low 25 25 SAVE VTR 300 B 208348 15 Installation and Service Systemair AB 6 5 Defrost level settings E Systemair The unit is equipped with an automatic defrost function that is activated when there is risk of icing in the area around the heat exchanger The setting shown in table 1 determines how aggressive the defrosting will be Default factory defrost mode setting is 0 Note The heat exchanger should withstand low outdoor temperatures but in those cases where icing can occur please be aware of that the defrost setting will generate an under pressure in the building Using a fire place be aware that there is a possible risk of smoke being extracted into the living areas due to under pressure if defrosting is activated Table 1 Defrost levels Defrost Level of humidity Relative h
15. All though the Mains supply to the unit has been disconnected there is still risk for injury due to rotating parts that have not come to a complete standstill Make sure that filters are mounted before starting the unit e This product must only be operated by a person which has suitable knowledge or education within this field or carried out with the supervision of a suitably qualified person Caution Do not connect tumble dryers to the ventilation system Duct connections duct ends must be covered during storage and installation 3 About this document This installation manual concerns air handling unit type SAVE VTR 300 B manufactured by Systemair AB The manual consists of basic information and recommendations concerning the design installation start up and operation to ensure a proper fail free operation of the unit The key to proper and safe operating of the unit is to read this manual thoroughly use the unit according to given guidelines and adhere to all safety requirements 4 Product information 4 1 General The SAVE VTR 300 B is a heat recovery ventilation unit with a built in rotating heat exchanger The SAVE VTR 300 B is suitable for houses with up to 240 m2 heated living area The SAVE VTR 300 B supplies filtered outdoor air to residential areas and extract air from bathroom kitchen and wet rooms SAVE VTR 300 B is equipped with a 1670 W electrical re heater battery SAVE VTR 300 B Inst
16. ain print card see wiring diagram The following possibilities are available Digital inputs 1 3 By connecting on off switches to these inputs it s possible to choose 3 individual airflow settings in the control panel depending on a temporary need for the building for example lowering the extract air airflow when an open fire place is used See chapter 8 5 DI 3 is prepared and already connected internally for easy access on the unit See chapter 6 10 Digital input 4 Makes it possible to disable the electrical re heater Activated input means that the electrical re heater is disabled e Digital input 5 Activate the Extended forced running function with a impulse switch The function overrides current airflow settings and runs in forced mode according to the settings in Service gt Ext Force run Choose between Low Nom and High for this function The input is calculated based on the signals from an impulse switch If a standard switch is used the countdown of the set time starts when the switch is switched off e Digital input 6 Control for the exchanger used by the system Digital input 7 Home leave switching on this activates low energy support control The heat exchanger is always operating according to the setpoint value Is there a re heater activated it will operate according to the lowest setpoint value 12 C The function is used when the building is uninhabited for a longer period It is recommend
17. allation and Service 208348 2 Systemair AB E Systemair 4 2 Left and Right models There are two model options right R and left L model The different models are recognized by the placing of the internal components and the supply air outlet which is situated on left side of the unit on an L unit and on the right hand side on an R unit Note This document describes a left L model The inside of a right R model is mirrored 4 3 Transport and storage The SAVE VTR 300 B should be stored and transported in such a way that it is protected against physical damage that can harm panels etc It should be covered so dust rain and snow cannot enter and damage the unit and its components The appliance is delivered in one piece containing all necessary components wrapped in plastic on a pallet for easy transportation SAVE VTR 300 B Installation and Service 208348 3 Systemair AB systemair 4 4 Technical data 4 4 1 Dimensions and Weight L model V 160 4 a Y Fig 1 Dimensions and weight L model Measures in mm and weight in kg A B C D E F G H J K 762 485 4232 842 804 824 758 405 258 97 121 L M N O P R S T U V Weight 206 255 104 136 216 303 490 788 1206 27 66
18. andling unit DI6 is not available as selection used by the system in the air handling unit Unsigned DI is shown as none To reset a previously assigned DI select and confirm the selection Functions External DI Wireless system status Note 1 Type None Wireless State No Network Node Shows number of Data 0 bound wireless module Type None UI User Interface Control panel DI Digital Input module CO2 CO2 sensor module RH RH sensor module State No Network No gateway connected to the system for air handling unit Unbound No bonded module OK Successful binding of module Data The actual value from module Comm fail Communication failure se manual for actual module for troubleshooting To reset all bound nodes see user manual for Gateway Wireless SAVE VTR 300 B Installation and Service 208348 32 Systemair AB a Systemair Menu Level 1 Menu Level 2 Menu Level 3 Explanation Functions For rotating heat Use this dialogue frame to set exchanger how aggressive you want the Defrosting a defrosting function to operate Defrosting see chapter 6 5 Mode 0 5 For counter flow heat exchanger Defrosting Mode 1 5 Allow unbalance YES Active defrosting cycle Functions Modbus Information about Modbus communication and variables Modbus Address 1 can be found in the Modbus Baud 9600 19200 user manual for residential Parity None Even Odd
19. anual 9 6 Replacing rotor drive belt Note Depending on model left or right it may be necessary to remove the heat exchanger package in order to replace a broken drive belt since the belt pulley cannot be accessed If the rotor motor is placed at the back of the unit it is recommended to remove the heat exchanger to change the drive belt see chapter 9 6 2 If the alarm Rotor is raised see chapter 9 5 the rotor drive belt may be damaged or broken The replacement drive belt 1 is adjustable and delivered with a nipple attached in one end Make sure that the Mains supply to the unit is disconnected before performing any maintenance or electrical work A Warning Risk of personal injury The heat exchanger weighs about 14 kg There is a risk that the heat exchanger falls out of the unit Make sure that small children are not beneath the unit when the heat exchanger is removed SAVE VTR 300 B 208348 Installation and Service 39 Systemair AB Fig 13 Rotor drive belt 9 6 1 Heat exchanger mounted 1 Stop the unit by disconnecting the mains 2 Open the front hatch 3 Remove the broken drive belt 4 Use tape to attach the drive belt to the rotating heat exchanger and rotate the exchanger by hand to get hold of the drive belt al Remove the tape and put the empty end on to the nipple O Press the drive belt ends firmly towards each other to secure th
20. ar d 2s Ganes bs EE nino ato 11 6 3 OYSIOM CURVES si cessinccicebetadetoobshat E Satet chad ie tubeaed Sutabedanetudedatiueutedaddbentedandedsiddateoens 13 6 4 Airflow SettingS 2 2 6chec2 cede ieee ii ds ia 14 6 5 Defrost level stings 22115 apn arana a E AnA EAE TAIETE EE E TEE A 16 6 6 Programming the Week schedule 00 ee cece cece eee eeee erent ee ee rete aaaeeeeeeaaeeeeeeaaeeeeeeeaaeeeeeeeaaeeees 18 O27 A A A cto case A E EE E ON 19 6 3 Extra functions ee tai A A ida de 19 6 9 Electrical CONNECTIONS EE E T E A E E T T A A 20 6 10 External connections on the Unit ccceccececeeeeceeeeee ce eeee eects ca eeeeaeeeesaeeesaeeeesaeeeeaeeeesaeeees 22 7 Before starting the System arinei nsi eiee i A sedan ENE ERA AASA 23 S Operation nne n a aa a a r a a a a e TY 23 8 1 Setting the temperature mrss cc cee cece ie iiie eeddeee cea EAA ie A AEN ENAERE ENTARA EAEAN EEEE EEA 23 8 2 Manual setting Of airflow n nrinn earnan aE E AEEA ERASE RRA EAEE REI RAEAN 23 8 3 Manual and automatic summer mode 02cccceeeeeeeeeceeee cece eeeca nese ae eeeaaeeeeaeeeesaeeesaeeeesaeeees 24 3 4 OONO COVEY aE ERAR OEE O E 24 8 5 Service MENU Verve W s daanan aa ade a eeeeeeeecaaeeeeaaeeseaeeeeceeeesaeeesaeeeeseeeesaeeeesaeeees 24 O SOMO a o AE ah adele a eaa e a a aa aa aA E 34 Oi Wann cari ai id 34 9 2 Internal COMPONENTS coito ised le esate ai A a lead 34 9 3 Component descriptions ico ii 35 9 4 Trouble SHOOUNG minita dia 37 95D Alri Sts tia co
21. e The factory installed filters are of filter quality F7 for the supply air and G3 for the extract air filter Air filters are accessories and can be obtained from the installer or wholesaler The filter type is labelled on the top of the filter 6 Here it is possible to change the Nominal High Low airflow on the Airflow Extract air fan EF and Supply air fan SP Airflow in l s 1 s EF SF When settings are done press ENTER Nom 82 82 High 100 100 Low 49 49 7 Here it is possible to change the Nominal High Low airflow on the Airflow EF SF Extract air fan EF and Supply air fan SF Airflow in System curves not selectable Now 50 50 When settings are done press ENTER High 100 100 Low 25 20 SAVE VTR 300 B Installation and Service 208348 12 Systemair AB 6 2 2 Perform Factory reset How to perform a factory reset if necessary 1 Enter the service menu by selecting the service symbol in the display and press ENTER Service 2 Go to password and enter the password default 1111 Use the SELECTION knob for each digit and confirm with the ENTER button after each set digit and choose NO for the system not be locked Password Password XXXX Locked YES NO 3 Go to Functions and select Factory Reset Functions Factory reset 4 Turn the SELECTION knob so YES is shown and press ENTER Factory reset Really reset ES NO 5 ACCEPTED is shown in the display window
22. e is 2 K lower than the set point and switches off if one or more of the following conditions are met If the supply air temperature is more than 2 K above the set point If the over heat protection is activated or the sensor is malfunctioning If the emergency thermostat is triggered or broken If the supply air sensor is in error state If the supply air fan is not running oa A O N gt If the heater is set to disabled in the menu 9 3 7 Overheat protection reset button If the supply air temperature is low it can indicate that the over heat protection is triggered The overheat protection can be reset by pressing the reset button 1 Fig 12 Overheat protection reset button 9 3 8 Water re heater battery A water re heater battery optional which can be acquired as an accessory can be controlled by the analog output WH 0 10 V DC The water heater uses Al 4 for frost protection SAVE VTR 300 B Installation and Service 208348 36 Systemair AB The frost protection sensor should then be a strap on surface sensor situated on the return water tube Sensor type TG A130 The supply air sensor SS at Al 1 must be replaced with a duct sensor which can be acquired as an accessory Sensor type TG K360 See wiring diagram for more information Only electrical or water re heater is allowed i e if a water re heater is selected the electrical re heater is deactivated and vice versa No
23. e nipple N Pull the drive belt on to the belt pulley and rotate the exchanger by hand Check that the belt pulley rotates Note If the drive belt slips the drive belt may be too long and needs to be shortened Cut the drive belt 5 mm and go to step 6 8 Close and lock the front hatch and connect the unit to mains 9 Check that the alarm has ceased on the Control Display Note If the alarm remains check the rotor sensor SAVE VTR 300 B Installation and Service 208348 40 Systemair AB 9 6 2 Heat exchanger removed 1 Stop the unit by disconnecting the mains 2 Open the front hatch 3 Disconnect the heat exchanger power supply and the rotor sensor The cables are found beside the heat exchanger at the back 4 Pull out the heat exchanger towards you Some force may be needed 5 Remove the broken drive belt 6 Apply the new drive belt around the heat exchanger 7 Press the drive belt ends firmly towards each other to secure the nipple 8 Pull the drive belt on to the belt pulley and rotate the exchanger by hand Check that the belt pulley rotates Note If the drive belt slips the drive belt may be too long and needs to be shortened Cut the drive belt 5 mm and go to step 7 9 Mount the heat exchanger Don t forget to reconnect the rotor power and sensor cables 10 Close the front hatch and connect the unit to mains 11 Check that the alarm has ceased on the Control Display Note If the alarm
24. ed to connect either of DI1 DI2 or DI3 in parallel with DI7 If DI7 is activated set the fans speed to min Airflow settings are done when configuring DI1 DI2 or DI3 See menu options in Service menu Overview chapter 8 5 SAVE VTR 300 B 208348 19 Installation and Service Systemair AB 6 9 Electrical connections The SAVE VTR 300 B is wired internally from factory The electrical connection box can be found on the supply air outlet side of the unit behind a cover plate The print card 1 can easily be taken out from the unit 1 Fig 8 Print card position SAVE VTR 300 B Installation and Service 208348 20 Systemair AB 6 9 1 Print card layout The SAVE VTR 300 B is equipped with built in regulation and internal wiring The figure shows the print card See wiring diagram for more information systemair ia MO ONO ZA ONS El GND vid ONS SKI GND 910 GND AO GND AZI OND a Y OO0O000000000000000 i 2 one O O O Ol z O E ol o oO ol MODBUS Sa isp Ol Olhe pal 0 lk O O O O
25. ee Functions gt Factory reset will not affect this function Service Functions Functions Heater Cooler Heater Cooler Pre heater YES Re heater NO None Electrical Wa ter Cooler None Wa ter Use this dialogue frame to set up the unit for heating and or cooling Note Pre heater only available for VTC 200 Set Re heater to None Electrical or Water Set Cooler to None or Water Functions Frost protection Frost protection Alarm limit TOC Shows current set frost protection alarm limit in C for the installed water coil Set Alarm limit in C Default value 7 C Functions System curve This function is to compensate the flow System curve EF 1 10 values for different system SF 1 20 pressures See chapter 6 3 SAVE VTR 300 B Installation and Service 208348 26 Systemair AB systemair Menu Level 1 Menu Level 2 Menu Level 3 Explanation Functions Fan control Fan control Airflow System curve 6 Select the type of fan control you prefer Fan control by l s m3 h or Fan control Airflow EF SF Use this dialogue frame to 1 s set the airflow in l s The Airflow airflow can be set individually Nom 82 82 for each fan EF Extract fan High 100 100 i mi SF Supply fan E 49 49 de Set the airflow for EF and SF for each step Low Nom and High System curve shall only be available in case a system with
26. emperature A triggered over heat protection EMT gives an alarm in the control panel Reset by pushing the reset button See chapter 9 3 7 If the problem continues contact your installation company or place of purchase SAVE VTR 300 B 208348 Installation and Service 38 Systemair AB Alarm Explanation Do the following Rotor Indicates a rotor malfunction The alarm is displayed in the control panel e Ifthe rotating heat exchanger has stopped Check the rotor belt See chapter 9 6 e Ifthe heat exchanger is still rotating check that the quick connector for the sensor is connected and that there is an air gap of 5 10mm between the sensor and the magnet Adjust the gap if necessary If the alarm persists the rotor sensor may be faulty Contact your installation company or place of purchase PbFail Error in connection with relay The alarm is displayed in the control panel card for the electrical re heater if z installed and activated The heater will not be activated automatic reset ET2 may be remains contact your installation company or place triggered due to high temperature Of purchase Temp Malfunction in one or more of the The alarm is displayed in the control panel temperature sensors Contact your installation company or place of purchase Filter Time for filter change The alarm is displayed in the control panel Change filter according to the instructions in the User M
27. er 1670 W Fans 176 W Total power consumption 1846 W Fuse 10 A SAVE VTR 300 B 208348 6 Installation and Service Systemair AB 5 Installation This section describes how to install the unit correctly To ensure a proper and fail free operation it is important that the unit is installed according to these instructions 5 1 Unpacking Verify that all ordered equipment are delivered before starting the installation Any discrepancies from the ordered equipment must be reported to the supplier of Systemair products 5 2 Where how to install The SAVE VTR 300 B should preferably be installed in a separate room e g storeroom laundry room or similar When choosing the installation position consideration must be taken that the unit requires regular maintenance Leave free space for opening of the front hatch in order to perform service and maintenance on components inside the unit The SAVE VTR 300 B is supplied with approximately 1 m cable and plug for 230V single phase earthed connection placed at the bottom of the unit Recommended installation location for the outdoor air intake is the northern or eastern side of the building and with a distance to openings for discharge of stale ventilation air kitchen ventilator central vacuum system waste water drainage and other pollution sources like exhaust from traffic etc Stale discharge air should ideally be led via a roof unit to the outside and with a good distance to any ou
28. f one of the digital inputs 1 3 DI 1 3 is active and set to off This would force one or both fans to stop depending on the setup chapter 8 5 5 Check if auto mode is active Auto mode reduces the airflow if actual value from external sensor sensors is lower than demand control set point 6 Check filters Change of filters required 7 Check diffuser louver openings Cleaning of diffusers louvres required 8 Check fans and heat exchange block Cleaning required 9 Check if the buildings air intake and roof unit exhaust have been clogged 10 Check visible duct runs for damage and or build up of dust pollution SAVE VTR 300 B Installation and Service 208348 37 Systemair AB E Systemair The unit cannot be controlled control functions are stuck 1 Reset control functions by pulling out the main power supply plug for 20 30 seconds 2 Check the modular contact connection between the control panel and the main print card Low supply air temperature 1 Check the display for alarms 2 Check set supply air temperature in the control panel 3 Check the analogue inputs in the service menu to verify that the temp sensors are ok chapter 8 5 Goto Functions gt Analogue input and verify the temperature readings from the temp sensors 4 Check that Home Leave function is disabled DI 7 5 Check if the over heat protection is triggered e For units with built in heater If necessary reset by pres
29. he Extended forced running function The function overrides current set airflow settings and runs according to the settings in Service gt Ext Force run Choose between Low Nom and High for this function The input is calculated based on the signals from an impulse switch If a standard switch is used the countdown of the set time starts when the switch is switched off DI6 for rotating heat exchanger Rotor sensor Used by the system to monitor the rotor rotation DI6 for counter flow heat exchanger Bypass damper limit switch Used by the system to detect the damper position DI7 Activates low energy support control Heat exchanger operating by the adjusted setpoint value and a active re heater has support control for the lowest setpoint 12 C The function is used when the building is uninhabited for a longer period It is recommended to connect DI7 and DI1 or DI3 in parallel If DI7 is activated set the fans speed to min Airflow settings are done when configuring DI1 DI3 SAVE VTR 300 B Installation and Service 208348 30 Systemair AB systemair Menu Level 1 Menu Level 2 Menu Level 3 Explanation Functions Digital output Shows The current settings of digital outputs 1 6 the Digital output 1 SF 67 settings in the column to the 2 EF 67 left are examples 3 Rot ON OFF 4 ALARM Y N 1 SF 67 Current set 5 Dmp Y N speed of the supply air fan 6 Heater Y N shown a
30. knob for each digit and confirm with the ENTER button after each set digit No will unlock the system and allow parameter changes Service Change password Set new password if Change Actual XXXX necessary Password New XXXX Confirm XXXX In case the new password would be forgotten or misplaced it s still possible to enter the service level by writing 8642 This overrides the earlier set password SAVE VTR 300 B Installation and Service 208348 24 Systemair AB systemair Menu Level 1 Menu Level 2 Menu Level 3 Explanation Service Filter period Filter period Time to replace 12month Reset NO YES Shows selected time interval between filter change Set Reset of the filter period to YES after completed filter change Set time between filter changes Service Time Date Shows current set date and Time Date YY MM DD time Date 12 09 12 Set Correct date and time Time 10 00 Weekday Sat Service Ext Force Run Use this dialogue frame to Ext Force Run Minutes 0 Airflow Nominal program extended time you want the unit to work under operation conditions other than determined by the week schedule Shows set time for extended forced running Shows Set airflow Set the time that the unit is to run in extended forced mode Value range 0 240 minutes Set the airflow for this mode Choose between Low Nom or High Default value Nom
31. l inputs ON or OFF Digital input DI1 ON OFF DI2 ON OFF DI1 Fan configuration DI3 ON OFF DI4 ON OFF DIS ON OFF DI3 Fan configuration DI6 ON OFF DI7 ON OFF DI4 Heater deactivated DI2 Fan configuration DI5 Extended forced running DI6 for rotating heat exchanger Rotor sensor DI6 for counter flow heat exchanger Bypass damper limit switch DI7 Home leave Functions Config DI 1 3 Use this dialogue frame Default to set how you want the Config DI 1 3 1 SF high EF high fans to react to 3 different 2 SF low EF low digital inputs when they are 3 SF high EF low switched on the settings in the column to the left are examples Potential free switches need to be connected physically to terminals on the main print card to obtain the different functions See the wiring diagram for more information Set the supply air fan SF and extract air fan EF individually to off low nom or high for digital inputs 1 3 SAVE VTR 300 B Installation and Service 208348 29 Systemair AB E Systemair Menu Level 1 Menu Level 2 Menu Level 3 Explanation Functions DI 4 7 DI 4 7 are default set from factory and can t be changed DI 4 7 4 Stop heat by the user Below follows 5 Ext run a short description of each 6 Damper Rotor function 7 Home Leave Dl4 Makes it possible to disable the electrical re heater Activated input means that the electrical re heater is deactivated DI5 Activate t
32. ll be in percentage System curves are not selectable 6 2 1 Procedure 1 Turn the SELECTION knob to choose language and press ENTER Languages Language ENGLISH 2 Choose unit type this choice is only present if a new print card is Type installed spare part or when a factory reset is performed SAVE VTR 300 B 3 Set date and time Time Date YY MM DD Date 12 09 12 Time 10 00 Weekday Sat 4 Select heater None Electrical Water Heater me Pre heater YES NO Note Reheater None Electri cal Water This choice is available only after a factory reset see chapter 6 2 2 or when a new print card is installed Pre heater is only available for VTC200 SAVE VTR 300 B Installation and Service 208348 11 Systemair AB systemair 5 Fan control Fan control Airflow Turn the SELECTION knob to select the type of fan control you prefer System curve System curve l s or percentage and press ENTER EF 1 10 Commission by see step 7 SF 1 20 Note System curves are not selectable when 3 is chosen Note Before setting the system curve see chapter 6 3 for details This function is implemented in the unit to compensate the flow values for different system pressures Supply Fan SF Total value range 1 20 For G3 type filter 11 20 For F7 type filter 1 10 Default curve 2 Extract Fan EF Value range 1 10 Default curve 2 Not
33. n five steps off low nominal high and auto These settings control the output signals to the supply and extract fans The factory setting on each speed steps are e Off SAVE VTR 300 B Installation and Service 208348 14 Systemair AB 49 l s or 25 e Nom 82 l s or 50 at approximately 80 Pa e High 100 l s or 100 e Low Auto In Auto mode the fans regulates in accordance with the pre settings for the demand control These levels are possible to change in the service level See service menu overview chapter 8 5 under functions A Warning under functions It is not recommended to activate manual fan stop set fan to OFF in standard households If manual fan stop is activated the unit should be provided with dampers in exhaust and fresh air ducts to avoid cold draught and risk of condensation when the unit has been stopped The fan can be set to OFF by activating manual fan stop See service menu overview chapter 8 5 6 4 1 Setting the airflow 1 Go to the service menu by using the SELECTION knob OSX Service 2 Enter the service level by typing the password default 1111 Use the SELECTION knob for each digit and confirm with the ENTER button after each set digit and choose No for the system not be locked Password Password XXXX Locked YES NO 3 Go to Functions Choose Fan control Functions gt Fan control 4 Turn the SELECTION knob to select
34. o a complete standstill e Beware of sharp edges during maintenance Use protective gloves Make sure that filters are mounted in their place before running the system e This product must only be operated by a person which has suitable knowledge or education within this field or carried out with the supervision of a suitably qualified person 9 2 Internal components Fig 11 Internal components SAVE VTR 300 B Installation and Service 208348 34 Systemair AB Posi Description tion 1 Mounting bracket 2 External connections 3 Extract air sensor 4 Overheat protection sensor 5 Internal electrical re heater 6 Extract air filter 7 Main print card 8 Supply air fan 9 Rotor motor and belt pulley 10 Rotating heat exchanger 11 Heat exchanger drive belt 12 Rotor sensor 13 Supply air filter 14 Extract air fan 15 Outdoor air sensor 16 Supply air sensor 9 3 Component descriptions 9 3 1 Fans The fans have external rotor motors of EC type which can be steplessly controlled individually 20 100 The motor bearings are life time lubricated and maintenance free It is possible to remove the fans for cleaning see User Manual for more information 9 3 2 Filters The factory installed filters are of filter quality F7 for the supply air and G3 for the extract air filter The filters need to be replaced when polluted
35. osed plug 6 1 Control panel Connect the unit electrically to the mains with the enclosed plug and check that it starts up correctly The control panel is used to make the necessary adjustments An external control panel can be connected on the top of the unit The illustration below shows the control panel with a short description Fig 4 Control panel Position Description Explanation 1 Display Shows symbols menus and settings 2 SELECTION knob Move through the menu lists or change settings and values by turning the knob left or right ENTER button ENTER menu choices or settings by pressing the button 4 RETURN button Step RETURN in the menu levels and to abort an initiated parameter change and restore the original value by pressing the button SAVE VTR 300 B Installation and Service 208348 9 Systemair AB 6 1 1 Display symbols Symbol Description Explanation Temp Illustrates the current set point for supply air temperature from completely empty to filled symbol Figs X Turn the SELECTION knob to choose temperature 19 C Temp Press ENTER to save the setting Airflow Illustrates the current airflow The airflow can be set manually in 5 steps Off Low Nom High and Auto i ef X Turn the SELECTION knob to choose airflow Airflow Press ENTER to save the setting A Ventilation off B Low ventilation Can be used when leaving the building for a longer period C Nominal ventila
36. r electromagnetic fields of household appliances and similar apparatus with regard to human exposure EN 50 106 2007 Safety of household and similar appliances Particular rules for routine tests referring to appliances under the scope of EN 60 335 1 and EN 60967 EN 61000 6 2 Electromagnetic compatibility EMC Part 6 2 Generic standards Immunity for industrial environments EN 61000 6 3 Electromagnetic compatibility EMC Part 6 3 Generic standards Emission standards for residential commercial and light industrial environments The complete technical documentation is available Skinnskatteberg 22 10 2014 A Mats S ndor Technical Director SAVE VTR 300 B Installation and Service 208348 1 Systemair AB 2 Warnings The following admonitions will be presented in different sections of the document Make sure that the mains supply to the unit is disconnected before performing any maintenance or electrical work All electrical connections and maintenance work must be carried out by an authorized installer and in accordance with local rules and regulations A Warning The system should operate continuously and only be stopped for maintenance service The installation of the unit and complete ventilation system must be performed by an authorized installer and in accordance with local rules and regulations e Beware of sharp edges during mounting and maintenance Use protective gloves
37. r similar All external equipment are connected The unit is correctly configured and commissioned The week schedule and airflow settings are correctly programmed 8 Operation 8 1 Setting the temperature The supply air temperature is set manually in steps of 1 K in the main menu display by choosing the temperature symbol If an electrical re heater is installed the temperature setpoints are 12 22 C For installed water re heater the setpoints are 12 40 C If the re heater is deactivated the temperature steps are 15 19 C Default value 15 0 C Each temperature step is illustrated by increasing the filling of the temperature symbol and the temperature is shown in the display X 19 C Temp An unfilled temperature symbol will activate manual summer mode See chapter 8 3 8 2 Manual setting of airflow It is possible at any time to manually set the airflow in the main menu display By choosing the fan symbol and confirming it is possible to increase or decrease the airflow in 5 steps Off Low Nom High and Auto By doing so you override the programmed week schedule for the unit until the end of the present time period in the week program chapter 6 6 dex Airflow SAVE VTR 300 B Installation and Service 208348 23 Systemair AB E Systemair A Warning It is not recommended to activate manual fan stop set fan to OFF in standard households If manual fan stop is activated the unit
38. s percentage of the maximum speed 2 EF 67 Current set speed of the extract air fan shown as percentage of the maximum speed 3 Shows if the rotor is active or not Unused for unit with counter flow heat exchanger 4 Alarm Y N Indicates if the sum alarm is active or not 5 Dmp OFF Outdoor exhaust air damper is on or off 6 Heater Y N Indicates if the electrical re heater is active or not External sensors External sensors Last valid value is presented CO2 0 ppm for the bounded sensors RH 0 Highest actual sensor signal presented via modbus wireless Unbound sensor presented as none Modbus sensors has priority over wireless sensors SAVE VTR 300 B Installation and Service 208348 31 Systemair AB E Systemair Menu Level 1 Menu Level 2 Menu Level 3 Explanation Functions External DI External DI menu only Active Wireless available if one or several External DI DI1 D1I20 Input modules are bound to Assign to the system Active wireless DI 5 D17 DI1 20 is depended on actual node for Input module Node shown in Wireless menu which node representing DI module inputs Eg Node 1 type DI Active wireless DI1 and DI2 Node 2 type DI Active wireless DI3 and DI4 Node 10 type DI Active wireless DI19 and DI20 Active wireless DI1 20 are available to assign to DI1 5 and DI7 for the system in the air h
39. sing the red reset button For units with external heater For reset see the manual for the external electrical heater 6 Check if digital input 4 DI 4 is set to off This would force the electrical re heater battery to be switched off chapter 8 5 7 Check if the extract filter must be changed 8 At very cold outdoor conditions an electrical pre heating battery might be necessary This can be acquired as an accessory 9 Check the balance between the supply and extract air Noise vibrations 1 Clean fan impellers 2 Check that the screws holding the fans are tightened 3 Check that the anti vibration pads are fitted at the bottom of the unit 9 5 Alarm list Alarm Explanation Do the following Fan Indicates error on either supply or The alarm is displayed in the control panel extract air fan Check that quick connectors are connected for the both fans Contact your installation company or place of purchase EMT Frost Indicates triggered frost protection A triggered frost protection alarm results in the in case of installed water heating following battery or triggered overheat protection in case of installed electric re heater battery Both fans stop Outdoor and exhaust air dampers closed e Water valve opens completely 10 V signal goes out to the actuator The unit will restart once the water temperature reaches 5 C above the set frost protection t
40. tdoor air intake windows etc 5 3 Installation procedure Note It is recommended to remove the heat exchanger before the installation to make the unit lighter The heat exchanger weighs about 14 kg How to remove the heat exchanger see chapter 5 3 1 steps 1 through 3 1 Prepare the surface where the unit is to be mounted Make sure that the surface is flat vertical and that it supports the weight of the unit Perform the installation in accordance with local rules and regulations 2 Fit the mounting bracket 1 with the anti vibration 2 gf pad 2 to the wall with enclosed screws Use T cae appropriate holes to screw the bracket firmly to E the wall Bottom side of bracket should be 40 mm H below top of unit position Note Make sure that the mounting bracket is completely horizontal once mounted on the wall Check with a spirit level SAVE VTR 300 B Installation and Service 208348 7 Systemair AB 3 Lift the unit in place gt yy A Warning f Beware of sharp edges during mounting and maintenance Use protective gloves Consider the unit weight when mounting Note Make sure that the unit is completely vertical and horizontal once mounted on the wall Check with a spirit level 4 Connect the unit to the duct system Make sure that all necessary accessories are used to create a functional ventilation solution A Warning The
41. te If a water re heater battery is installed we strongly recommend you to also install an outdoor air damper with a spring return actuator 9 3 9 Water cooler A water cooler optional can be acquired as an accessory and be controlled by the unit If a water cooler is installed the supply air sensor SS at Al 1 must be replaced with a duct sensor which can be acquired as an accessory Sensor type TG K360 See wiring diagram for more information 9 4 Trouble shooting A warning triangle with text in the display indicates an alarm Turn menu selector to the warning triangle and press confirm twice to view the alarm SN Alarm If problems should occur please check the items below before calling your service representative Malfunction Action Fans do not start 1 Check the display for alarms 2 Check fuse for main power supply in the distribution box for the building and all the quick connectors are connected in the unit quick connectors for supply and extract air fans 3 Check that the week program is in ON mode The week program might be in OFF mode with the airflow set to OFF chapter 6 6 4 Check if one of the digital inputs 1 3 DI 1 3 is active and set to off This would force one or both fans to stop depending on the setup chapter 8 5 Reduced airflow 1 Check the display for alarms 2 Check setting of airflow in the control panel chapter 6 1 1 3 Check week program chapter 6 6 4 Check i
42. that type of fan control is used Fan control Airflow unit Default value l s Airflow unit 1 s m3 h Demand control Demand control CO2 Demand control menu RH Setpoint 0 ppm 0 RH P Band 100 ppm 10 RH I Time OFF choice or setpoint shall only be available if CO2 or RH sensors are detected Those should not be needed to configure once connected to the wireless gateway should just tell the unit PCU EC there is a sensor available Setpoint shall also be able to set to 0 to turn off demand control Both types should be able to use at the same time meaning 2 Pl controllers When demand control setpoint is configured fans set to auto mode and regulate against the setpoint The fan symbol should have the middle area empty and the outer and inner filled It should not be possible to change either Fan control Airflow EF SF Use this dialogue frame to set the airflow in The airflow Airflow can be set individually for Nom 50 50 each fan EF Extract fan High 100 100 ia SF Supply fan L 25 25 EN Set the airflow for EF and SF for each step Low Nom and High SAVE VTR 300 B Installation and Service 208348 27 Systemair AB systemair Menu Level 1 Menu Level 2 Menu Level 3 Explanation Functions Manual fan stop Manual fan stop Allow manual fan stop Y N Set if it should be possible to turn off the fans in the unit manually from the control panel Chose
43. tion Will give required air change under normal conditions D Maximum ventilation To increase the airflow if necessary E When demand control is activated fans should go to auto mode and regulate after the pre setting for the demand control settings Service Press ENTER to access the service menu LEX Service Alarm Press ENTER to access the alarm list LFA Alarm 1 The fan can be set to OFF by activating manual fan stop See service menu description under functions A Warning It is not recommended to activate manual fan stop set fan to OFF in standard households If manual fan stop is activated the unit should be provided with dampers in exhaust and fresh air ducts to avoid cold draught and risk of condensation when the unit has been stopped SAVE VTR 300 B Installation and Service 208348 10 Systemair AB a Systemair 6 2 Start up wizard The Start up Wizard is a step by step configuration tool that starts automatically when the SAVE VTR 300 B is started for the first time or when e a factory reset is performed anew print card is installed spare part In this case the unit type must be entered SAVE VTR 300 B The airflow in the Start up wizard can be set by either l s m3 h or a percentage with the Fan control e IfAirflow System curve is chosen the settings will be in l s m3 h and system curves are selected e If Airflow is chosen the settings wi
44. to prevent the heater from triggering the over heat protection sensor before they stop Airflow 7 Set which airflow the fan is supposed to be Airflow running in the ON level choose between Low Nom High or Auto On level low nom high auto Off level off low nom high 8 Step back with the RETURN button until you reach the main menu display SAVE VTR 300 B 208348 Installation and Service 18 Systemair AB 6 7 Ext Force run It is possible to program extended time you want the unit to work under operation conditions other than determined by the week schedule 1 Go to the service menu by using the SELECTION knob LFX Service 2 Enter the service level by typing the password default 1111 Use the SELECTION knob for each digit and confirm with the ENTER button after each set digit and choose No for the system not be locked Password Password XXXX Locked YES NO 3 Go to Ext Force Run Service Ext Force Run 4 Set the time in minutes the unit is to run in extended forced running mode Value range 0 240 minutes in steps of 10 min Set the airflow for this mode Choose between Low Nom or High Default value Nom Ext Force Run Minutes 0 Airflow Nominal 6 8 Extra functions The unit is equipped with a number of extra on off functions which can be activated from external on off switches that can be connected to the digital inputs on the m
45. um alarm Normally open 24 V max 1 A 5 Sum alarm Reference 6 Sum alarm Normally closed 24 V max 1 A 7 GND Reference 8 Water cooler control signal AO2 0 10 V DC 9 GND Reference 10 Water heater control signal AO1 0 10 V DC 11 GND Reference 12 Bypass damper AO3 If used 0 10 V DC 6 10 External connections on the unit Two of the connections on the main print card are wired to plugs on the unit casing connection to an external control panel through a modular connector Maximum cable length 50 m Cable type Flat 4 conductor CEC Phone cable or equivalent connection to DI 3 with possibility to configure the fan speeds individually through a potential free on off switch Default settings SF High EF Low 1 Cable glands 2 Connection to DI 3 through a potential free on off switch 3 Connection to control panel SAVE VTR 300 B 208348 22 Installation and Service Systemair AB 7 Before starting the system When the installation is finished check that The unit is installed in accordance with the instructions The unit is correctly wired Outdoor and exhaust air dampers and silencers are installed and that the duct system is correctly connected to the unit All ducts are sufficiently insulated and installed according to local rules and regulations Outdoor air intake is positioned with sufficient distance to pollution sources kitchen ventilator exhaust central vacuum system exhaust o
46. umidity Description mode indoors 0 Defrosting is turned off Note This setting is not valid for units equipped with counter flow heat exchangers 1 Min lt 20 Dry areas such as warehouse buildings with few people or industrial buildings that don t use water in their production process 2 Low 30 40 Office buildings 3 Medium 41 60 Apartments or houses with normal humidity 4 High 61 80 Apartments or houses with high humidity 5 Extremely high gt 80 Buildings with very high humidity level 1 Relative humidity in the extract air at cold outdoor temperatures 2 In newly constructed houses it might be necessary with a higher defrost level during the first winter period SAVE VTR 300 B 208348 16 Installation and Service Systemair AB 6 5 1 Setting the defrost level 1 Go to the service menu by using the SELECTION knob Service 2 Enter the service level by typing the password Password default 1111 Use the SELECTION knob foreach Password XXXX digit and confirm with the ENTER button after each Locked YES NO set digit and choose No for the system not be locked 3 Go to Functions Functions Choose Defrosting Defrosting 4 Set the mode For units with rotating heat exchangers Defrosting Mode 0 5 For units with counter flow heat exchangers Defrosting Mode 1 5 Allow unbalance YES NO Note This setting is only valid for units equipped with counter
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