SAVE VTC 300 Heat Recovery Ventilation Unit
Contents
1. Functions Analog input Analog output Digital input Analog input l SS 20 0 2 ETS 20 0 3 Not used 4 OT FPS 20 0 Da 08 10 5 Shows analogue inputs from active temperature sensors SS Supply air temp sensor ETS Extract air temp sensor OT FPS Over heat protection sensor Frost protection sensor OS Outdoor air temp sensor Functions Analog input Analog output Digital input Analog output AO1l auto man off 0 0V AO2 auto man off 7 3V AO3 auto man 10V Shows current analogue outputs in 0 10 V to hot cold water actuator and bypass damper Set Ao1 Analogue output to hot water actuator to auto man or off Default is off A02 Analogue output to cold water actuator to auto man or off Default is off AO3 Analogue output to bypass damper to auto orman Default is auto Selecting man enables the user to manually control the actuator damper with a 0 10 V signal OV means 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 operation or forced defrosting 10 V Functions gt Digital input Config DI 1 3 Config DI 4 7 Digital input DI1 ON OFF DI2 ON OFF DI3 ON OFF DI4 ON OFF DI5 ON OFF DI6 ON OFF DI7 ON OFF Shows current setting of the digital inputs ON or OFF DI1 Fan configuration DI2 Fan configuration DI3 Fan configuration DI 4 Heater stopped2. 2 Enter the service level by typing the password Use the selection knob for each digit and confirm with the confirm button after each set digit 3 Go to Week program SAVE VTC 300 207232 28 iX Serica Password 1111 Ext Forced Run Week program Functions Installation and Service Systemair AB 4 Choose Week program again 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 6 Go back to the previous dialogue frame with the Back button and go down to Fan speed 7 Set which fan speed the fan is supposed to be running in the ON level choose between Low Nom or High Week program gt Week program Fan speed Week program Day MON Per 1 07 00 16 00 Per 2 00 00 00 00 Week program Week program gt Fan speed Fan speed ON level Low Nom High OFF level OFF Low Nom High Set which fan speed 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 to prevent the heater from triggering the over heat protection sensor before they stop
3. 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 60529 Degrees of protection provided by enclosures IP Code EN 50 366 2003 Electric domestic products and similar everyday articles Electromagnetic fields Methods for evaluation and measurements EN 50 106 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 60 034 5 Rotating electrical machines Part 5 Degrees of protection provided by the integral design of rotating electrical machines IP code 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 14 03 2011 Mats S ndor Technical Director SAVE VTC 300 Installation and Service 207232 1 Systemair AB 2 Warnings The following admonitions will be presented in the 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
4. Step back with the Back button until you reach the main menu display 6 4 Extra functions The unit is equipped with a number of extra on off functions which can be activated from on off switches that can be connected to the digital inputs on the main print card see wiring diagram The following possibilities are available e Digital inputs 1 3 By connecting on off switches to these inputs it s possible to choose 3 special individual fan speed settings in the control panel depending on a temporary need for the building for example lowering the extract air fan speed when an open fire place is used Digital input 4 Makes it possible to turn the electrical re heater battery on or off e Digital input 5 Turn the Extended forced running function on or off with a switch The function overrides current set fan speed Choose between Low Nom and High for this function e Digital input 7 Home leave switching on this input decreases the supply air temp set point with 10K This function is used when the building is uninhabited for a longer period This function is however not working if the unit has been configured to operate with a hot water heater SAVE VTC 300 Installation and Service 207232 29 Systemair AB See menu options in Service menu Overview chapter 5 2 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
5. Cooler Heater rSet Heater to None Electrical or Water Ext Forc Run Week program gt Functions gt Air flow Air flow unit Manual fan stop Nom 50 50 Max 100 100 Low 25 25 Cooler gt Functions Air flow None Water Set Cooler to None or Water Functions Frost protection Shows current set frost protection alarm limit in C for the installed water coil Heater Cooler Alarm limit 11 C Set alarm limit in C Default is 7 C Frost protection Air flow Service Functions AIEEE REUSE Use this dialogue frame to set the fan speed in percentage of the maximum speed The speed can be set individually for each fan EF Exhaust fan SF Supply fan Set the fan speed for EF and SF for each step Low Nom and High Note The values for Nom Max and Low suggested in this overview are example settings Functions Air flow gt Air flow unit Manual fan stop Air flow unit 3 Only is option default Functions Air flow Air flow unit 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 between Y and N If Y is selected the fans can be turned off by turning the selection knob to empty fan symbol SAVE VTC 300 207232 21 Installation and Service Systemair AB systemair Menu level 1 Menu level 2 Menu level 3 Explanation
6. DI5 Extended forced running DI6 Damper test 7 Home leave Functions Digital input Config DI 1 3 Config DI 4 7 Config DI 1 3 1 SF high EF nom 2 SF off EF low 3 SF high EF high Use this dialogue frame to set how you want the fans to react to 3 different digital inputs when they are switched on or off the settings in the column to the left are examples On off 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 to 1ow nom or High for digital inputs 1 3 SAVE VTC 300 207232 22 Installation and Service Systemair AB systemair Menu level 1 Menu level 2 Menu level 3 Explanation Functions Digital input Config DI 1 3 gt Config DI 4 7 DI 4 7 DI4 Stop heat DI5 Ext run DI6 Damper test DI7 Home leave DI 4 7 are default set from factory and can t be changed by the user Below follows a short description of each function D14 Makes it possible to turn the electrical re heater battery on or off DI5 Turn the Extended forced running function on or off by the help of a switch The function overrides current set fan speed DI6 Automatic test of the bypass damper function This digital input is not available for the user es 7 Switching on this input decreases the supply ai
7. It s possible to set 2 periods per day Set week day and time interval for the time you want the unit to be in ON mode Fan speed Use this dialogue frame to determine the ON and OFF speed for the fans in the week ON level schedule Low Nom High Set ON level OFF level OFF Low Nom High Choose between Low Nom or High Default is Nom Set OFF level Choose between OFF Low Nom or High Default is Low SAVE VTC 300 Installation and Service 207232 20 Systemair AB systemair Menu level 1 Menu level 2 Menu level 3 Explanation Service Fan speed log Use this dialogue frame to see how the fans have operated during the time h they have Fan speed log Frost protection None Electrical Wate Ext Forc Run Level Reset been active 1 5 No Yes Week program The speeds are shown in 5 different levels SF 140 140 gt Fan speed log Level 1 0 EF 140 140 Level 2 1 29 Level 3 30 44 Level 4 45 59 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 see Functions Factory reset will not affect this function Service Functions Heater Cooler Use this dialogue frame to set up the unit for heating and or cooling Week program Heater
8. SAVE VTC 300 Installation and Service 207232 8 Systemair AB 3 J_J lt Lift the unit in place A Warning Beware of sharp edges during mounting and maintenance Use protective gloves Note Assure that the unit is completely vertical once mounted on the wall The unit must not be tipping forward in order for the condensation drainage to function 4 Connect the condensate drainage to the 2 drain plugs in the bottom of the unit Make sure to use correct drain traps on both connections The height H must be at least 60 mm Drain traps are not included on delivery and can not be obtained from Systemair a 5 Connect the unit to the duct system Make sure that all necessary accessories are used to create a functional ventilation solution A Warning The installation of the unit and complete ventilation system must be performed by an authorized installer and in accordance with local rules and regulations 6 Connect the unit electrically to the mains with the enclosed plug and check that it starts up correctly 4 3 2 Electric Connections The SAVE VTC 300 is wired internally from factory The electrical connection box can be found in the supply air fan compartment The top cover plate is removed by removing 2 screws in the lower front edge of the cover plate figure 5 All external connections to possible accessories a
9. VTC 300 207232 Installation and Service Systemair AB E MIOS Fig 8 Connections on top of the unit casing Position Description 1 Connection to external control panel 2 Connection to DI 3 through an on off switch 4 3 3 Installation procedure Electrical Re heater battery An electrical re heater battery can be ordered as an accessory and be installed inside the unit Below instruction describes the procedure for the installation in a right hand unit Make sure that the Mains supply to the unit is disconnected before performing any maintenance or electrical work All electrical maintenance work must be carried out by an authorized installer and in accordance with local rules and regulations 1 Disconnect the unit from the mains supply SAVE VTC 300 Installation and Service 207232 13 Systemair AB 2 Open the front hatch n L AR EF ut y 3 2 Remove the upper plate to the right of the heat SA l et exchanger pos 1 by loosening the 4 screws i l j pos 2 FR tC peas e iene a 8 2 S A L LAR y gt 4 Remove the plate covering the electrical connection box pos 1 by loosening th
10. to electrical re heater if installed SAVE VTC 300 11 Installation and Service 4 3 2 2 SAVE VTC 300 External Connections Connection terminals for external equipment figure 7 can be found on the main print card inside the unit in the electrical connection box figure 6 NO CMMN NC INTERLOCK OMIC GND DAMPER NO CMMN NC HUMIDIFIER ALARM GND WC GND WH Fig 7 Terminals for external connections Position Description Remark 1 Outdoor exhaust air damper Normally open contact 230 V 1 max 1 A Outdoor exhaust air damper Reference Outdoor exhaust air damper Normally closed contact 230 V 1 max 1 A 4 Connection to external alarm Normally open contact 24 V max 1 A Connection to external alarm Reference Connection to external alarm Normally closed contact 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 121 Bypass damper control signal AO3 0 10 V DC 1 Internally wired from factory 4 3 2 3 External connections on top of the unit Two of the connections on the main print card are wired to plugs on top of the unit casing connection to an external control panel through a modular contact and a connection to DI 3 with possibility to configure the fan speeds individually through a potential free on off switch figure 8 SAVE
11. 0 figure 15 which are situated on each side of the heat exchanger The drainage outlets are size 1 2 with outer threaded tube connections chapter 4 3 1 8 2 1 6 Print card The main print card pos 13 figure 15 controls the functions and set temperatures of the unit It is possible to connect external accessories to terminals in the print card See wiring diagram for more information 8 2 1 7 Temperature sensors Three temperature sensors NTC 10 kQ are included in the unit from factory e Supply air sensor pos 14 figure 15 e Outdoor air sensor pos 15 figure 15 Extract air sensor pos 16 figure 15 The sensors are wired to the main print card See wiring diagram for more information 8 2 1 8 Electrical Re heater battery The electrical re heater is optional i e not included from factory in a standard unit and must be connected and activated in the control panel chapter 5 2 5 The re heater is activated by a relay and switches on if the supply air temperature is 2 C lower than the set point and switches off if one or more of the following conditions are met 1 If the supply air temperature is 2 2 C over the set point 2 If the over heat protection is activated or the sensor is malfunctioning SAVE VTC 300 Installation and Service 207232 33 Systemair AB 3 If the emergency thermostat is triggered or broken 4 If the supply air sensor is in error state 5 If the supply air fan is not running 6 If the h
12. AE ccoo a A AL id da 18 9 12 Display SYMDOIS i ici tada 19 5 2 Service MENU OvVerVieW e a e a e aree aee ce eeee e aaae aa Ae a e adara aa a aa a 19 Sa ostino Temperatures arai a ET EEEE A AA EEE aa 24 5 2 2 Manual Setting of Fan Speed oooooccccccnoncccccnnnnnccnnonnnnccnnnnnnnccnnnnnnnccnnnnnncrnnnnnnnerannnnnnre 24 5 2 3 Manual SUMMEr MOJO nida eataa aa aa am Aaaa anena kanani Aaa adai 25 9 2 4 Cool TOC VE Vio a ARA ee eee 25 5 2 5 Software configuration for electrical heater oooocccononnccconcocccccnnnnnnccnnnnnnccnnnnnnncranannnnno 25 6 COMMISSIONING A E EE EAEE EEE A AEAEE 26 6 1 beiting Fan AN 26 6 1 1 Fan speed setting procedure ooooooccconccconoccconccconnnnnoncncnnnnnnnnnnncnnnnnnnnnnnnnnnnnnnnnnnnannnnn 26 6 2 Setting defrost level dronni endiyi eieiei a cda 27 6 2 1 Software configuration of Defrost settings oooooonnonnccnnnnocccccnnnnonccnnnnnnccnnnonnncranannnnoo 27 6 3 Programming the Week schedule oooocoooccccccccocccccncnnconnnnonononnnnnnncnnnnnnnncrnnnnnncrrnnnnnncrnnnnnnners 28 0 4 Extra TUNCHONS EE EE T EEEE A A EEEE E E E E 29 T Botore Starting the Systeme an a aT AR E EAEE AA E 30 lateat IDY 0 PPA EA OASE EE A TE E OO 31 SIMIO ii AAA 31 8 2 Internal Component oooocccconcccncccnconoccnncncnnnnnnnnnnnnn src eeceaeeeeeaeeceaeeeeaaeeeeaeeessaeeeseeeesaeeessaeeees 32 8 2 1 Description of COMpONentS ooocccooccccnnccccncnnnonccnonnnnnoncnnnnncnnnnnnnnnnnnnnnnnnnnnnninnnnnnnnnninnnss 33 8 3
13. Trouble Shootings eriei ateriointi dl Dd dia 35 SIMA al aa diia 36 84 Type A O 37 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 products Heat recovery ventilation unit SAVE VTC 300 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 EMC Directive 2004 108 EC The following harmonized standards are applied in applicable parts EN ISO 12100 1 Safety of machinery Basic concepts general principles for design Part 1 Basic terminology methodology EN ISO 12100 2 Safety of machinery Basic concepts general principles for design Part 2 Technical principles EN ISO 14121 1 2007 Safety of machinery Risk assessment Part 1 Principles EN 13857 Safety of machinery Safety distances to prevent hazard zones being reached by upper or lower limbs EN 60 204 1 Safety of machinery Electrical equipment of machines Part 1 General requirements EN 60 335 1 Household and similar electrical appliances
14. 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 Beware of sharp edges during mounting and maintenance Use protective gloves Although 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 This product is not intended to be used by children or people with reduced physical or mental ability or lack of experience and knowledge if no instruction concerning the use has been given by the person responsible for their safety or that this person is supervising the operation Children should be supervised so that they can not play with the product Caution Do not connect tumble dryers to the ventilation system e Duct connections duct ends must be covered during storage and installation SAVE VTC 300 Installation and Service 207232 2 Systemair AB 3 Product information 3 1 General This installation manual concerns air handling unit type SAVE VTC 300 manufactured by Systemair AB SAVE VTC 300 include the following model options Right or Left mo
15. d and connected properly apply the 2 type labels belonging to the electrical re heater battery next to the labels of the unit The first label is placed next to the unit label situated on the inner lower frame of the casing behind the inspection hatch The second label is placed next to the unit label situated on top of the unit next to the duct connections SAVE VTC 300 Installation and Service 207232 17 Systemair AB 5 Operation 5 1 Interface description 5 1 1 Control panel The control panel is built into the unit on either the left or right hand side of the VTC 300 The control panel is always situated on the same side of the unit as the supply air connection figure 2 Below illustration shows the control panel with a short description figure 10 Fig 10 Control panel Position Description Explanation 1 Display Shows symbols menus and settings 2 Move through the menu lists or change Selection knob settings and values by turning the knob left or right 3 Confirm menu choices or settings by Conny putan pressing the button 4 Step back in the menu levels by Bak ouREN pressing the button SAVE VTC 300 Installation and Service 207232 18 Systemair AB 5 1 2 Display symbols Symbol Description Explanation Illustrates the current set temperature The temperature setting is done in 5 steps from completely empty to filled symbol and can be Temp changed manually by tu
16. dels R Right L Left see figure 2 The different models are recognized by the control panel which is situated on the right side of the unit in an R unit and on the left side in an L unit Re heater battery electrical or water heating battery is optional and can be ordered as an accessory This 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 follow all safety requirements SAVE VTC 300 Installation and Service 207232 3 Systemair AB 3 2 Technical Data 3 2 1 Dimensions and Weight e i ae Systemalr Fig 1 Dimensions mm and Weight drawn as a right hand connected unit Model A B Cc D E F G H l VTC 300 762 758 616 553 857 802 406 139 279 1 Inspection hatch Model J K L M N O P Q Weight kg VTC 300 131 131 139 421 160 279 152 17 72 Y outer thread SAVE VTC 300 207232 Installation and Service Systemair AB 3 2 1 1 Connections Right and Left Models Fig 2 Right and Left models Position Description R Right hand model Supply air connection and control panel is situated on the rig
17. e i ae Systemalr SAVE VTC 300 Heat Recovery Ventilation Unit Installation and Service Q 207232 en GB CE ox C 2012 10 05 10 06v A004 Contents 1 Declaration of Conocido A io ats 1 LAVADO iia ai A eee oasis E A E E Dd 2 S Product information ita tt E satiated Se diia 3 3N Gen ral ies A evn bey a eas 3 3 2 Jechnicall Datars a a e ss td 4 3 2 1 DIMENSIONS ANG WIN reeseneiativcewehabhe est chat beats catieeatadeatecaladaniveatadateceetadatetintedadteess 4 3 2 2 ROQUES SP aCe ic fags A A Arda 6 3 2 3 Power consumption and Current ccccceceeeeceeeeceeeeee ee eeeeeeeeeaeeeeeeeeeeaaeeeeseeeeaaees 6 3 3 Transport and Storage os erin cece tad 6 A cosas ces esaraes Ses ehen ana dances sae teabet aA a a Dea a EAA TAEAE tenia detaa sual deney LAETA ETEME ARTERE AERA 7 4 1 Unpacking oa eanu ek e De ai eed ee 7 4 2 Where how to install coordinan ean cabeaeevesass ie ctaaactaecdsdadaieegasely svanagheecntetaeendaaehabeas 7 4 3 INStallinig the Unit sitios scbastodarstegecaten teed detanubed sudan ueedoetauered seta daeed nid vaeeuaceauapesteraeadesd 8 4 3 1 Installation Procedure SAVE VTC 300 ccecceeeceeeeecee eect ee eeeeeeeeeaeeeeeaeeeeaeeeesaeeeeaes 8 4 32 Electric Connections trad AAA dae 9 4 3 3 Installation procedure Electrical Re heater battelY oooooocnnnnnnicnccccccccnccnnncnnnncnnnannnnnnns 13 O RN 18 5 1 Interface description ccoo rd de get bony A cta 18 5 11 Control P
18. e extract air temperature 5 2 5 Software configuration for electrical heater 1 Go to the service menu by using the selection knob Semice 2 Password Enter the service level by typing the password 1111 Use the selection knob for each digit and confirm with the confirm button after each set digit 3 Ext Forced Run Go to Functions Week program gt Functions 4 gt Heater Cooler Choose Heater Cooler Frostoprote tion Air flow SAVE VTC 300 Installation and Service 207232 25 Systemair AB 5 Select Heater Electrical E Systemair Heater Electrical The unit is now ready to be used with the installed electrical heater 6 Commissioning 6 1 Setting Fan speed The fan speed may be adjusted in three steps low nom and high This setting controls the output signals to the supply and extract fans The factory setting on each speed steps are 25 50 and 100 of 10 V These levels are possible to change in the service level See below airflow diagram to get an idea of how the airflow corresponds to each voltage output figure 14 This shows a fan performance diagram displaying performance curves for supply air and extract air 600 100 120 140 20 40 60 80 Q Us Fig 14 Fan performance diagram Position Desription 1 Fan performance curve supply air 2 Fan performance curve
19. e 2 screws in the lower front edge of the plate pos 2 5 Remove the 3 screws with the black knobs pos 1 from the inner casing SAVE VTC 300 Installation and Service 207232 14 Systemair AB 6 Remove the covering plate pos 1 of the electrical re heater by loosening the 3 screws pos 2 7 Insert the electrical re heater kit pos 1 in the compartment next to the supply air fan and fasten the mounting bracket against the inner walls with the 3 black knob screws 8 Lead the gray 4 lead cable containing the wiring for the mains supply and emergency thermostat ET and the black 2 lead OT sensor cable through the prepared lead through s pos 1 situated in the plate separating the re heater and motor compartments The 2 cables are then lead through the prepared lead through s marked by pos 2 in the illustration 9 Fasten the re heater cover plate with the 4 prepared screws as illustrated in step no 6 10 Continue with fastening the re heater print card pos 1 on the prepared distances pos 2 next to the main print card with the 4 enclosed screws Connect it to the main print card by the use of the prepared connections on the side of the 2 circuit boards SAVE VTC 300 207232 15 Installation and Service Systemair AB 11 Connect the blue and brown cables pos 1 to the fr
20. eater is set to not active in the menu 8 2 1 9 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 OT Over heat protection changes to FPS Frost protection in the menu The frost protection sensor should then be a strap on surface sensor situated on the return water tube The supply air sensor SS at Al 1 must be replaced with a duct sensor which can be acquired as an accessory 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 Note If a water re heater battery is installed we strongly recommend you to also install an outdoor air damper with a spring return actuator 8 2 1 10 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 See wiring diagram for more information SAVE VTC 300 Installation and Service 207232 34 Systemair AB 8 3 Trouble shooting 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 that all fu
21. ee L N terminals on the main print card See wiring diagram for detailed information 12 Connect the wires in the 4 lead gray cable pos 1 to mains supply brown and blue wire and the terminal for the emergency thermostat black and gray wire See wiring diagram for detailed information 13 Connect the wires in the 2 lead black sensor cable OT to terminals on the main print card pos 2 See wiring diagram for detailed information SAVE VTC 300 207232 16 Installation and Service Systemair AB 14 Put back the cover plate pos 1 and the plate pos 2 and fasten them with the enclosed screws as t 3 2 t 5 15 Turn the power back on and start the software configuration in the display according to below procedure chapter 5 2 5 After completed installation of the electrical re heater battery the unit looks as described in below illustration figure 9 EN G O EET gt Y O i Fig 9 Installed electrical re heater Position Description 1 Electrical re heater battery front plate 2 Reset button emergency thermostat Note After the re heater battery has been installe
22. extract air 6 1 1 Fan speed setting procedure 1 Go to the service menu by the use of the selection knob 2 Enter the service level by typing the password Use the selection knob for each digit and confirm with the confirmation button after each set digit SAVE VTC 300 207232 26 BSD Semice Password Edd Installation and Service Systemair AB 3 Ext Forced Run Go to Functions W eek program Functions 4 Air flow Choose Air flow Heater 5 Airflow EF SF Set the fan speed in percentage of the maximum Nom 50 50 speed All 3 speed categories can be set between i 20 100 chapter 6 1 High 100 100 Low 25 25 6 2 Setting defrost level The unit is equipped with an automatic three step defrost function that is activated when there is risk of icing in the area around the heat exchanger It is possible to select if a heater is present and if unbalanced flows are allowed The setting 1 5 table 3 determines how aggressive the defrosting will be Table 3 Defrost levels Defrost mode Relative humidity indoors Description 1 Minimum 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 40 60 Apartments or houses with normal humidity 4 High 60 80 Apartments or houses with high humidity 5 Ext
23. frosting Address 1 247 user manual for residential units in the online catalogue at www systemair com Modbus Baud 9600 19200 Factory reset Parity None Even Odd SAVE VTC 300 Installation and Service 207232 23 Systemair AB Systemair Menu level 1 Menu level 2 Menu level 3 Explanation Functions Factory reset Use this dialogue frame to return to factory settings Defrosting Really reset Yes No Set YES or NO Modbus Factory reset Note This will erase all your personal settings that have been done for the unit Service Languages Use this dialogue frame to select your local language Language Language ENGLISH Set Language by turning the selection knob Versions Alarms Service Version VC300 Shows current software version Languages CD EC Versions Appl 1 08 00 1 22 00 Alarms Boot 1 00 01 1 01 00 Service Alarms Shows the alarm list and which alarms have been triggered indicated by Y See alarm Languages Fan Y list chapter 8 3 1 Versions EmT Frost N gt Alarms Damp Y Pb Fail N Temp N Filter Y 5 2 1 Setting Temperature The supply air temperature is set manually in 5 steps in the main menu display by choosing the temperature symbol figure 11 If an electrical or water re heater is installed the temperature steps are 12 0 14 5 17 0 19 5 and 22 0 C Default is 12 0 C If the unit is used without any re heater installed or if the re heater is deactivated the temperat
24. ht hand side of the unit viewed from the front L Left hand model Supply air connection and control panel is situated on the left hand side of the unit viewed from the front Table 1 Symbol description Symbol Description A Supply air B Exhaust air gt Cc Outdoor air a D Extract air SAVE VTC 300 Installation and Service 5 Systemair AB 3 2 2 Required Space Oo Q o ES ES E Y A Fig 3 Space required Model A B VTC 300 1507 1332 Note Do not place the side marked X figure 3 too close to a side wall distance to side wall must be at least 150 mm Make sure that the inspection door can be opened sufficiently to allow easy maintenance and changing of filters If necessary the inspection door can be removed completely see User manual for details 3 2 3 Power consumption and Current Table 2 Power Consumption Model Fans W Heater W Total W Fuse mains A VTC 300 170 3 170 10 VTC 300 with reheater 170 1700 1870 10 3 3 Transport and Storage The SAVE VTC 300 should be stored and transported in such a way that it is protected against physical damage that can harm panels display etc It should be covered so that dust rain and snow cannot enter and damage the unit and its components The appliance is delivered in one piece containing all necessary comp
25. in the control panel temperature sensors Check analogue inputs to verify which sensor is malfunctioning Filter Time for filter change The alarm is displayed in the control panel Change filter according to instructions in the User Manual SAVE VTC 300 207232 36 Installation and Service Systemair AB 2 systemair 8 4 Type label Before calling your service representative make a note of the specification and production number from the type label which can be found on top of the unit close to the duct connections or inside in the bottom of the unit 2 SAVE VTC 300 R 220 240V 50 60Hz IP24 M 2x85W M 170W CE Date cocsiscossrs QUALITY CONTROL 1 10 12 21 354784 0000 ES Slag 2480 C www systemair com zsa mor 3 Fig 16 Type label SAVE VTC 300 R Position Description 1 Product code product specification 2 Production date 3 Product item number 4 Production order number 5 Consecutive number SAVE VTC 300 Installation and Service 207232 37 Systemair AB Systemair AB reserves the right to make changes and improvements to the contents of this manual without prior notice systemair Systemair AB Industriv gen 3 SE 739 30 Skinnskatteberg Sweden Phone 46 222 440 00 Fax 46 222 440 99 www systemair com 207232
26. into operation Place the unit preferably in a separate room e g storage laundry room or similar When choosing the location it should be kept in mind that the unit requires maintenance regularly and that the inspection door should be easily accessible Leave free space for opening the door and for taking out the main components figure 3 The outdoor air intake of the building should if possible be put in the northern or eastern side of the building and away from other exhaust outlets like kitchen fan exhausts or laundry room outlets SAVE VTC 300 Installation and Service 207232 7 Systemair AB systemair 4 3 Installing the Unit The unit must be installed in the following position figure 4 It is important that the unit is completely vertical in order for the condensation drainage to work properly Fig 4 Installation position right hand unit 4 3 1 Installation Procedure SAVE VTC 300 1 Prepare the surface where the unit is to be mounted Make sure that the surface is flat levelled and that it supports the weight of the unit Perform the installation in accordance with local rules and regulations 2 Fit the mounting bracket pos 1 with the anti vibration pad pos 2 to the wall with enclosed screws Use appropriate holes to screw the bracket firmly to the wall Bottom side of bracket should be 40 mm H below top of unit position
27. is not intended to be used by children or people with reduced physical or mental ability or lack of experience and knowledge if no instruction concerning the use has been given by the person responsible for their safety or that this person is supervising the operation Children should be supervised so that they can not play with the product SAVE VTC 300 Installation and Service 207232 31 Systemair AB e j a Systemalr 8 2 Internal Components 4 Fig 15 Components Position Description 1 Fan supply air 2 Fan extract air 3 Filter outdoor air 4 Filter extract air 5 Defrost damper 6 Motor defrost damper 7 Cover plate defrost damper 8 Heat exchanger 9 Condensation tray 10 Condensation drain 12 Cover plate electrical connection box 13 Print card with terminals 14 Temperature sensor supply air 15 Temperature sensor outdoor air 16 Temperature sensor extract air 17 Fast couplings for supply and extract air fan 1 The damper may not be turned by hand SAVE VTC 300 Installation and Service 207232 32 Systemair AB 8 2 1 Description of Components 8 2 1 1 Fans The fans pos 1 and 2 figure 15 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
28. is possible to remove the fans for cleaning see User Manual for more information 8 2 1 2 Filters The filters are of filter quality G 4 for both the supply air and extract air filter The filters need to be replaced when polluted New sets of filters can be acquired from your installer or wholesaler 8 2 1 3 Defrost damper The built in bypass damper pos 5 figure 15 is involved in defrosting cool recovery and supply air temperature regulation of the unit The damper motor is controlled by an analogue 0 10 V signal A test sequence which opens and closes the damper will occur once every 24 hours A micro switch detects if the bypass is able to close completely If a signal from DI6 is not detected for one minute after the function test has been initiated then the warning DAMPER WARNING appears in the control panel 8 2 1 4 Heat exchanger SAVE VTC 300 is equipped with a highly efficient counter flow plate 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 8 2 1 5 Condensation tray and drainage Depending on the relative humidity in the extract air condensation may occur on the cold surfaces of the heat exchanger The condensate water is gathered in the condensation tray pos 9 figure 15 in the bottom of the unit and is led out through the drainage pos 1
29. ngle and press 2x confirm Alarm Explanation Result Fan Indicates error on either supply or extract The alarm is displayed in the control panel air fan May result in triggered over heat protection if an electrical re heater battery is installed and active when the malfunction occurs EMT Frost Indicates triggered emergency thermostat A triggered frost protection alarm results in case of installed electric re heater in the following battery or frost protection in case of Both f t installed water re heater or cooling battery ON AnS SLOR e Outdoor and exhaust air dampers close e Water valve opens completely 10 V signal goes out to the actuator The unit will restart once the water temperature reaches 5K over set frost protection temperature A triggered emergency thermostat alarm gives an alarm in the control panel Reset by pushing the button pos 2 figure 9 on the front of the electrical re heater battery DAMP Indicates malfunction in bypass damper The alarm is displayed in the control panel The unit will not be able to use the bypass damper for defrosting i e stop defrosting will be initiated if a re heater is installed and activated Pb Fail Error in connection with relay card The alarm is displayed in the control panel for electrical re heater or re heater disconnected The electrical re heater will not be activated Temp Malfunction in one or more of the The alarm is displayed
30. onents wrapped in plastic on a pallet for easy transportation SAVE VTC 300 Installation and Service 207232 6 Systemair AB 4 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 Please note the following admonitions 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 e Beware of sharp edges during mounting and maintenance Use protective gloves The installation of the unit and complete ventilation system must be performed by an authorized installer and in accordance with local rules and regulations AN Caution Duct connections duct ends must be covered during storage and installation Do not connect tumble dryers to the ventilation system 4 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 4 2 Where how to install SAVE VTC 300 are meant for indoor installation in a heated space Mount the unit on a vertical flat surface It s important that the unit is completely levelled before it is put
31. r temp set point with 10K This function is used when the building is uninhabited for a longer period Note The Home leave function is not working if Water heater is activated Functions Digital output Shows The current settings of digital outputs 1 5 the settings in the column to the left are Digital output os SF 67 examples Defrosting 2 EF 67 1 SF 67 Current set speed of the supply air fan shown as percentage of the Modbus 3 Not used maximum speed 4 Alarm Y N 2 EF 67 Current set speed of the extract air fan shown as percentage of the 3 Dep OFF maximum speed 6 Reheater Y N 4 Alarm Y N Indicates if the sum alarm is active or not 5 Dmp OFF Outdoor exhaust air damper is on or off 230 V signal relay 6 Reheater Y N Indicates if the electrical re heater is active or not Functions Defrosting Use this dialogue frame to set how he aggressive you want the defrosting function Digital output Mode 1 5 to operate chapter 6 2 Defrosting Allow unbalance Set defrosting mode between 1 5 Default Yes No is 3 Modbus Reduced flow Set If you during the defrosting cycle can Active accept a temporary unbalance of the air Bypass defrosting flow from the unit i e supply air decreases Active Select YES or No Stop defrosting Active Shows if any defrosting cycle is active Functions Modbus Information about Modbus communication and variables can be found in the Modbus De
32. re made to terminals on the main print card chapter 4 3 2 2 SAVE VTC 300 Installation and Service 207232 9 Systemair AB Make sure that the Mains supply to the unit is disconnected before performing any maintenance or electrical work All electrical connections must be carried out by an authorized installer and in accordance with local rules and regulations Installation and Service SAVE VTC 300 Systemair AB 207232 4 3 2 1 Electrical connection box Components The unit is equipped with built in regulation and internal wiring See below illustration figure 6 for an overview of the enclosed components The figure shows the electrical connection box for the VTC 300 units See wiring diagram for more detailed information Fig 6 Electric components Position Description 1 Main print card 2 Print card for electrical re heater if installed 3 Connection to external control panel connected to unit casing Mains supply connection between main 4 print card and electrical re heater print card if installed 5 Terminals for Al 1 4 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 mains supply connections
33. remly 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 Note The factory setting for the VTC 300 is mode 3 6 2 1 Software configuration of Defrost settings Set the defrost mode according to below procedure 1 Go to the service menu by the use of the selection knob Semice SAVE VTC 300 Installation and Service 207232 27 Systemair AB 2 Enter the service level by typing the password Use the selection knob for each digit and confirm with the confirm button after each set digit 3 Go to Functions 4 Goto Defrosting 5 Select how aggressive you want the defrosting to be choose defrost mode between 1 5 table 3 Default is 3 Select if unbalanced airflows are allowed in the building during the defrost cycle Choose between YES and NO Default is YES 6 Password 1111 Ext Forced Run Week program Functions Digital output Defrosting Factory reset Mode 1 5 Allow unbalance Y ES NO Step back to the main menu display by pressing the Back button until you reach the main display 6 3 Programming the Week schedule Set the week schedule according to below procedure 1 Go to the service menu by the use of the selection knob
34. rning the selection knob Confirm the setting with the confirm button chapter 5 2 1 and chapter 5 2 3 Illustrates the current set fan speed The fan speed can be set manually in 3 steps Low Nom and High by turning the selection knob and confirming with the confirm button after completed setting i X Fan speed Fan speed A B C e Low ventilation A Can be used when leaving the building for a longer period e Nominal ventilation B Will give required air change under normal conditions e High ventilation C To increase the airflow if necessary af Access the service menu by pressing the confirm i SEDES button Semice i f Alarm Access the alarm list by pressing the confirm button Alarm 1 Can be set to OFF by activating Manual fan stop See Service menu overview under Functions 5 2 Service menu Overview Enter the service menu by selecting the service symbol in the display Searrice Below overview displays the service menu structure in 3 levels SAVE VTC 300 Installation and Service 207232 19 Systemair AB systemair Menu level 1 Menu level 2 Menu level 3 Explanation Service Password Enter the service level by typing 1111 Use the selection knob for each digit and confirm Password Password XXXX with the confirm button after each set digit Locked YES NO Service Change password Set new password if necessa
35. ry Change password Filter period Time Date Actual XXXX 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 Service Change password Filter period Time Date Filter period Reset NO Time to replace 9 month 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 Change password Filter period Time Date Time Date YY MM DD Date 10 05 08 Time 10 00 Weekday SAT Shows current set date and time Set Correct date and time Service gt Ext Forc Run Week program Fan speed log Ext Forc Run Minutes 0 Fan speed Nominal Use this dialogue frame to 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 fan speed Set the time in minutes the unit is to run in extended forced running mode Set the fan speed for this mode Choose between Low Nom or High Default is Nom Service Ext Forc Run gt Week program Fan speed log Week program Week program Fan speed Week program Day MON Perl 07 00 16 00 Per2 00 00 00 00 Program how you want the unit to operate according to the week schedule
36. s 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 5 2 Go to Functions gt Analogue input and verify the temperature readings from the temp sensors 4 In case of installed electrical re heater battery Check if the over heat protection thermostat is still alert If necessary reset by pressing the red button on the front plate of the electrical re heater pos 2 figure 9 5 Check if digital input 4 DI 4 is set to off This would force the electrical re heater battery to be switched off chapter 6 4 6 Check if the extract filter must be changed 7 Check if the unit has a re heater battery connected At very cold outdoor conditions an electrical or water heating battery might be necessary A re heater battery can be acquired as an accessory Noise vibrations 1 Clean fan impellers 2 Check that the screws holding the fans are tightened 3 Check that the anti vibration lists are fitted to the mounting bracket and to the back of the unit SAVE VTC 300 207232 Installation and Service 35 Systemair AB 8 3 1 Alarm list E Systemair Error is warned with text and warning triangle in the display Turn the selection knob to the warning tria
37. ses and fast couplings are connected mains supply and fast couplings for supply and extract air fans pos 16 figure 15 3 Check that the week program is in ON mode The week program might be in OFF mode with the fan speed set to OFF chapter 6 3 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 6 4 Reduced airflow 1 Check the display for alarms 2 The unit could be in defrost mode This reduces the fan speed and in some cases shuts down the supply air fan completely during the defrosting cycle The fans go back to normal after finished defrosting Shown as Defrosting in the display 3 Check setting of fan speed in the control panel chapter 6 1 1 4 Check week program chapter 6 3 5 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 6 4 6 Check filters Change of filters required 7 Check diffusers louvres 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 11 Check diffuser louvre openings The unit cannot be controlled control functions are stuck 1 Reset control functions by pulling out the plug for 20 30 second
38. ure steps are 15 0 16 0 17 0 18 0 or 19 0 C Default is 15 0 C Each temperature step is illustrated by increasing the filling of the temperature symbol 6 Temp Fig 11 Temperature symbol 5 2 2 Manual Setting of Fan speed It s possible at any time to manually set the fan speed in the main menu display By choosing the fan symbol and confirming figure 12 it s possible to increase or decrease the fan speed in the 3 steps Low Nom and High 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 3 SAVE VTC 300 Installation and Service 207232 24 Systemair AB ea Fan speed Fig 12 Fan speed symbol 5 2 3 Manual Summer mode Manual summer mode occurs if one step lower than 12 C is selected The temperature symbol on the main menu is then completely empty figure 13 This means that the bypass damper opens 10 V control signal to output DAMPER If the re heater is active it will switch off during manual summer mode Manual summer mode aborts automatically after two minutes if the supply air temperature is lt 5 C If water heater battery is installed and activated the manual summer mode is aborted if the outdoor air or supply air temperature is lt 5 C Fig 13 Symbol for manual summer mode 5 2 4 Cool recovery Cool recovery occurs when there is a cooling need and the outdoor air temperature is higher than th
39. wired in case of installed electrical heater 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 or similar All external equipment are connected The unit is correctly configurated and commissioned The week schedule and fan speed settings are correctly programmed SAVE VTC 300 Installation and Service 207232 30 Systemair AB 8 Service Note Questions regarding the unit and the installation are answered by your installer or place of purchase 8 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 to a complete standstill Beware of sharp edges during maintenance Use protective gloves Make sure that filters are mounted in their place before running the system This product
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