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Operating Instructions - Paul Wärmerückgewinnung

Contents

1. 20 The assignment T is set via the Assignment T tab of Setup see 5 2 1 1 5 2 2 1 or 5 2 3 1 according to the selected working mode Control features of the TAC4 DG e Monitoring the 3 way valve to keep assignment T constant using supplied sensor T value e Engaging a relay to start a water circulator output SAT 3 O R 3 on i o module see 8 4 11 1 Antifrost protection of the water coil based on the value of T4 T sensor provided and pre wired If value T4 lt 4 C then the 3 way valve is opened and contact for circulator is closed during 15 minutes e Possibility to stop the post heating with an external contact connected to terminal IN6 see 4 11 1 e Assignment failure see 4 5 1 and 4 5 2 e Sensor failure alarm see 4 5 1 and 4 5 2 4 12 1 Wiring diagrams e 3 ways valve wiring to TAC DG circuit EEE II GND OUT4 OUTS NV VO Vanne 3 voies GND blue wire 3 wegkraan NV red wire 3 way valve VO brown wire e Wiring of supply air T sensor to TAC DG circuit mese BSS SSeS SSS Ba ese SB Gloeo o o o Jo o o o o o o lo eoo olero K1 K2 K3 12V 12V IN1 IN2 IN3 IN4 INS ING INT IN8 IN9 12V GND T 5 GNDOUT1 OUT2 Sonde T T Sonde T sensor 21 Switching of a relay to control the circulator SAT3 O R 3 relay Circulateur Circulateur OFF ON Possibility to stop the post heating with an external contact 12V INT IN2 IN3 IN4 INS ING INT IN8 INQ 12V
2. If an non existent address is entered the GRC produces an error message This message indicates that no unit responds to the specified address This will have no influence on the other units connected to the network To solve the problem enter a valid address More information in the section Network management 8 5 4 5 5 1 Synoptic tab The Synoptic tab returns a general overview of the actual on line values of one specific unit It automatically adapts depending on the selected setup and options Address 1 Synoptic Alarms Setup Flows I O Config To outdoors To indoors 1273 m h 1473 m h lt lt il 66 C TA gt From A From outdoors CAS e indoors o S 0 mo J J 20 8 C u Pa Alarms 5 5 1 1 General information Address zei Synoptic Alarms Setup Flows I O Config EB To outdoors To indoors 0 m h l 0 m h l 6 6 C 2 F rom i ee From outdoors e indoors o S l o 5 5 0 C Antifreeze 20 8 C Tia Pa 3 Alarm 1 MODBUS address of CB4 TAC4 DG circuit This address field is editable in each visualization screens To manage a network of several installations see Network screens see 5 4 2 Actual supply airflow rate 3 Indoor inlet air T T2 white wire sensor 4 Diode representing all alarms of the unit selected except for the pressure alarms The diode is red when an alarm is active Press on diode to be automatically directed
3. Contact closed post heating OFF Contact open post heating ON 4 13 Regulation for external coil s SAT TAC4 BA KW option Via option SAT TAC4 BA KW it is possible to control one or two external from the unit heat exchanger s SA One heating coil One water cooling coil One heating cooling coil reversible coil One heating coil one cooling coi separate One electrical coil One electrical coil one cooling coil T TAC4 BA KW Controls the coil s capacity by keeping a supply air temperature constant equals to the assignment This assignment can be defined for each coil when configuring the setup Controls the water coils antifrost protection Triggers command for circulator s Cooling Heating mode control by digital entry An extra external system determining in which mode heat cool the coil must operate and delivering the information free of potential contact to the SAT TAC4 BA KW is necessary Allows shutting down the coils via digital input y For connections configuration and user instructions see installation manual MI SAT 22 TAC4 BA KW 4 14 Fan failure alarm It is possible with a SAT3 mounted on the TAC4 DG option to provide the fan status control if actual delivered airflow gt 20 of airflow assignment or if they are stopped using the R3 relay of one of the SAT3 O R 2 This feature provides an increased safety with regard to the start instruction control because there is a control
4. In this configuration the control screen of the GRC is always accessible but does not allow airflow assignment modifications Wiring diagrams a Wiring to 1 circuit Ep eeeeeeee ee Bes ojojojo ojojojojojojojojojojo joojo jojojo K1 K2 K3 12V 12V IN1 IN2 IN3 IN4 INS ING INT IN8 INS 12V GND T 5 GNDOUT1 OUT2 0 10 Vdc b Wiring to several circuits in parallel 12V INT IN2 INS IN4 INS INS INT INS INO 12V GND T S GNDOUT OUT2 0 10 vee K1 closed gt soft start K1 open gt softstop K2 gt 0 10V signal maximum impedance allowed 1500 Q K1 K3 closed gt on K3 activated K3 open gt on K3 inactive Caution use gold plated contacts only 31 5 2 3 CPs mode setup operating instructions and wiring diagrams 5 2 3 1 Setup CPs mode e Inthe home screen select your language with the dropdown menu e Open the sidebar by clicking on the arrow at the bottom left of the screen e Inthe menu select Setup e inthe dropdown menu at the top of the screen select current mode CPs a General tab Working mode EPs Address 1 Main Alarm Pa _T Setpoint cPs on UBA Exhaust Supply 90 onK3 50 nit pressure pia Towate Supply 3 1 V11500 m h Start SETUP Working mode Select working mode CA LS CPs or OFF select CPs Cps on Supply or Exhaust or Supply and Exhaust Select in which airflow the pressure sensor is placed See below for mor
5. exhaust airflow configuration is made using the advanced setup Full details see the advanced setup in documentation 4 6 4 2 Wiring diagram of fire alarm 12V INT IN2 IN3 IN4 INS ING INT INS INY 12V If IN3 12V closed fire alarm activated this logic can be reversed via advanced setup menu Default if IN3 12 V closed and IN7 12V closed force start the supply fan s at pre programmed airflow 1 IN7 12V open force stop the supply fan s IN8 12V closed force start the exhaust fan s at pre programmed airflow 1 INS 12V open force stop the exhaust fan s 1 At preset airflow in the advanced setup menu 16 4 7 BOOST function The BOOST function allows forcing a preset airflow overruling all other configurations 4 7 1 Setup The configuration is made via the advanced setup 4 7 2 Wiring diagram 12V IN1 IN2 IN3 IN4 INS ING IN INS IN9 12V Contact open BOOST inactive Contact closed BOOST active 4 8 BYPASS function free cooling The counter flow heat exchanger is fitted with a 100 bypass When the bypass is open fans may Either continue to operate the same way as when the bypass is closed Either operate at a fixed exhaust and supply airflow rate These airflow values can be re set via the SETUP AVANCE According to inside and outside temperatures the TAC4 DG control will monitor the opening closing of the 100 by pass damper The by pass is delivered completely wired and
6. GRC TAC4 master and switch in position TAC4 DG master to activate automatically a sleep value attention K1 K2 K3 on the TAC4 DG have to be properly connected to activate this value 4 4 Fancontrol The various working modes give the user the choice on how the airflow must be modulated according to your application In all the working modes the supply fan will operate according to the assigned mode and parameters The airflow of the exhaust fan will then equal to a percentage of the actual airflow of the supply fan noted EXT PUL for ratio between exhaust and supply airflows The GRC TAC4 allows configuration of one of the following 4 modes e CA MODE 3 constant airflow assignments for the supply fan are determined by the user m h K1 m h K2 and m h K3 e LS MODE The assigned supply airflow is a function of a 0 10V linear signal The user defines the link with 4 parameters Vmin Vmax m h Vmin and m h Vmax applied to the following diagram With m h Vmin lt or gt m h Vmax positive or negative link Using the advanced setup it is possible to stop the fans once the input signal value has reached a certain upper and or lower limit CPs MODE CPs on supply the airflow of the supply fan s is modulated so as to maintain constant a certain pressure value measured by a pressure sensor properly located in the ducting CPs on exhaust the airflow of the exhaust fan s is modulated so as to maintain constant a certain
7. ates as octane cheese ee eect N N yas eae 35 TMe Slots SENEQUIES pageant perenne ek ee sancti ae a a rere ner 36 SED ait 0 09 POCO poo ere tee Meee o A 36 Week Blame taba 37 Year planner tab Seasonally or yearly planner u 2400000400e nennen nennnnennennnn een 37 NELWOrK Management rannte ee ie 37 Gener le a ee ee ee 37 NEIWOLK VISUAlIZallOn a een ee na ee 38 EOS HEIWOLK van na El 38 SCLEENL dESCHPUON Eee ee ee A 38 A td 38 VISUAIZall ON seda 39 NS ee ar sen 39 Generalinformalion ass ser Ein 39 AIL lt EIOWSS TOD zn a a 40 Post heating information if NV or KWout or BA option present occccoccccccccnconcncconcncnos 40 AN IFOSEINTOTMallONn ernennen tina Als ee A 42 Damper s CT information option us 24000n00nneennennnn nennen nnnnnennennnn nennen nnennnn nennen 42 nn least 43 A A AA TEA AAT 43 CHOWSI A a least ee 44 MONTA nino pit en nah uch au be ne ee ida e do En a ee N e e 44 CH G16 Pat 6 Damen tie OO 5 OO 00 OO mm O 45 Advanced SUD laos a 45 O Preamble PLEASE READ THIS MANUAL CAREFULLY BEFORE INASTALLATION AND COMMISSONING THIS MANUAL HAS BEEN MADE WITH GREATEST CARE HOWEVER NO RIGHTS CAN BE DERIVED THEREFROM WE RESERVE THE RIGHT ATANY TIME TO PARTIALLY OR ENTIRELY CHANGE THE CONTENT OF THIS MANUAL WITHOUT PRIOR NOTICE This manual contains all the best for an assembly plant and a heat recovery unit HRU necessary information The manual also serves a
8. button on the TAC4 DG circuit to return to normal operation Type 7 Alarm indicating maintenance is expected for configuration see advanced setup SERVICE ALARM indicates the fan operating time in hours has exceeded a certain limit set during the configuration STOP FAN indicates the fan operating time in hours has exceeded a certain limit set during the configuration This alarm stops the fans See 7 in table below Type 8 Not applicable with GRC TAC4 Type 9 Alarm indicating a T sensor T1 T2 T3 failure One or more of the T sensors T1 T2 T3 connected to the TAC4 DG circuit and mounted on heat exchanger is defect or not connected These sensors are crucial for the by pass control and the antifrost procedure After correction of the failure reset using ALARMS RESET in the Alarms tab of the Visualization menu or the RESET button on the TAC4 DG circuit to return to normal operation See 9 in table below Type 10 Alarm indicating failure on T sensor T4 only with NV option It indicates that the T sensor T4 located on the coil and connected to the TAC4 DG circuit is defect open or short circuit or not connected This sensor is used to avoid frosting of the NV coil In this case as a safety measure the 3 way valve is opened and the contact used to start the circulator is closed After fixing the failure reset using ALARMS RESET in the Alarms tab of the Visualization menu or press R
9. language with the dropdown menu e Open the sidebar by clicking on the arrow at the bottom left of the screen e Inthe menu select Setup e Inthe dropdown menu at the top of the screen select current mode LS a General tab V min Enter Vmin for LS link minimum voltage Flow Vmin Enter airflow rate corresponding to Vmin Stop fans if Possibility to stop the fans automatically if 0 10V signal lt Vlow Press led to turn this feature on V lt Vlow the led becomes green Stop fans if Possibility to stop the fans automatically if 0 10V signal gt Vhigh Press led to turn this feature V gt Vhigh on the led becomes green Appears only if feature is enabled Enter threshold value Vhigh Vhigh gt Vmax Exhaust Sa Select airflow ratio between exhaust airflow fans F3 F4 and supply airflow fans F1 F2 Sup In this configuration the exhaust airflow is independent from the supply airflow The airflow ratio 0 10V on K3 Exhaust Sup is replaced by another 0 10V signal connected between GND and K3 The same LS link as above Vmin Vmax is used to determine the exhaust airflow 28 b Alarm Pa tab Pressure alarm dP supply dP exhaust Pa ref init Supply Exhaust Start Alarm threshold Working mode Ss Address 1 Main Alarm Pa T Setpoint a Pressure alarm Y Alarm threshold dPsupply 200 Pa Supply 348 Pa uy dP exhaust 200 Pa 11540 m h Y Parefinit Start E
10. max 0 10V 0 Pa max 0 10V 0 Pa max Default OUT1 actual airflow of fan 1 supply Default OUT2 actual pressure of fan 1 supply 5 Configuration and use 5 1 Principles of GRC TAC4 Se The GRC configuration is made with the touch screen To preserve the display it is strongly recommended not to use a pointed object to navigate through the different screens In the home screen select your language with the dropdown menu 4 languages are available English French Dutch and German To access the various menus open the sidebar by clicking on the arrow at the bottom left of the screen e A Control l Address 1 3 Pa A Alarms Setup Choose language English Adv Setup l s AIRFLOW CONTROL G R C Network Actual flowrates ARPA Timetable Supply 0 m h gt Exhaust 0 m h Eve lt The information is structured in 6 different menus e Control menu for Fan control start stop assignment selection See 5 2 1 2 or 5 2 2 2 5 2 3 2 according to working mode e Visualization menu provides information about the selected current state unit configuration All information in this menu is read only It is not possible via these screens to change the configuration e Setup menu choice and configuration of the basic parameters of the selected unit see 5 2 e Advanced Setup configuration of advanced parameters It is only recommended to qualified personnel to change parameters in
11. on one side of the ground only e lf the maxi series is installed outside select a suitable cable for outdoor application UV light 4 2 2 2 Wiring several circuits on one GRC e The maximum number of circuits that can be connected on one GRC is 247 units manual monitoring e The network screen can only monitor 5 units at a time automatic monitoring e Wire specifications between 2 SAT MODBUS shielded twisted pair FTP category 5 Section of 0 26 0 50 mm Use same pair to connect B and A The circuits shall be connected in series as shown on the wiring diagram below Wiring diagram SAT MODBUS 1 SAT MODBUS 2 Ar B GND A B GNO 4 2 3 Power GRC TAC4 Use a 24 Vdc power supply Maximum power consumption is 5W The TAC4 DG provides a 24Vdc output for this purpose See wiring diagram below GRC TAC4 CB4 TAC4 DG s COMO j COM2 black wire brown wire metal wire y Same wiring is applied in case an NV option is used 3 way valve power supply Be extra careful to wire properly as improper wiring can cause malfunctioning of the installation 4 3 Selecting the master Selecting the master means the determination of which module of the i o and the RC will control the fans controlling the fans means If CA mode is chosen 8 5 2 1 to be the master means to control the start stop of the fans as well as to select the airflow If LS or CP
12. on the fact that the fan is actually running closed loop principle Wiring diagram ojo ojo EE EE ojo ojo FAN OFF FAN ON 4 15 Actual airflow pressure output signals A 0 10V signal representing the actual airflow or the actual pressure delivered by one of the selected fans with a linear relation is a standard feature The output signals are located between terminals OUT1 OUT2 and GND on the TAC4 DG circuit Default setup OUT1 airflow fan 1 Supply fan and OUT2 pressure fan 1 Supply fan Table link between 0 10V signal and actual pressure or airflow value Linear equation Maxi series O 28007180 2800718020 528007200 528007210 528007220 528007230 528007240 Pressure Pa 0 0 0 0 0 0 0 675 780 1090 1060 1090 1140 1075 0 960 Airflow per fan Airflow x 2 to obtain actual total airflow 1450 2400 3600 2400 3000 3600 Maxi flat series o maxi flat 450 maxi flat 600 maxi flat 1000 maxi flat 1600 maxi flat 2000 Pressure Pa ONPE m J 200 Ser 1060 Airflow m3 h 0 0 0 10 V 540 720 1200 1920 2400 23 Via the advanced setup it is possible to connect any of these 2 OUT signals to the airflow or pressure value of any fans Wiring diagram of outputs signals Zee Bee GOIO 1010 GND OUT1 OUT2 GND OUT1 OUT2 Airflow pressure signal Airflow pressure signal 0 10V 0 m h max 0 10V 0 m h
13. pressure value measured by a pressure sensor properly located in the ducting e MODE OFF Is not a real working mode it is a way to temporarily shortcut the TAC4 DG master setup It allows if working in TAC4 DG master to stop the fans with the GRC TAC4 But then to restart the fans it is required to choose one of the other 3 working modes 4 5 Time slots schedules 4 5 1 Definition The TAC4 DG regulation allows to configure up to 6 time slots per day For each time slot select e The exhaust and the supply airflows o Working mode CA LS CPs or OFF o CA mode select the actual exhaust and supply airflow o LS mode select a value of the link configured as well as a age value of the unbalance between exhaust and supply airflows exhaust supply o CPs mode select a age value of the reference pressure as well as a age value of the unbalance between exhaust and supply airflows exhaust supply e Bypass status choose either automatic see 4 7 or either force the bypass to open or close for the TS considered e f post heating installed option set the assignment t for the supply air for the TS considered e f post cooling installed option set the assignment t for the supply air for the TS considered Seasonal management is also possible e Force bypass close between 2 dates avoid free cooling in the winter e Disable the post heating feature between 2 dates avoid post heating in the summer e Disabl
14. supply airflow is stopped for as long as T T3 lt 1 C during 5 minutes In these conditions LED AF is blinking The antifrost led on the Synoptic screen Visualization menu of GRC TAC4 is on and an explanatory text appears in the flow tab All these temperature SET values can be modified using ADVANCED SETUP Antifreeze diagram 18 LED AF ON ao LEDAF blinking 4 10 2 Antifrosting the heat exchanger with 1 pre heating KWin option If a KWin pre heating coil is option is installed in the maxi unit the heat exchanger is protected from frosting by a modulating electrical coil assigned to maintain a pre set temperature at the outlet of the heat exchanger in the exhaust airflow The KWin is delivered ready to use from the factory The default assignment T after heat exchange is 1 C If necessary this value can be changed using the advanced setup feature TAC4 DG regulation antifrost functions A solid state relay controlled by the TAC4 DG regulation controls the coil s capacity in function of the assigned T and of resulting exhaust T The control only allows the heating coil to be operated if the supply fans are in working This wiring is factory made Post ventilation feature see advanced setup If the fans are requested to stop the R3 relay is opened and therefore the power supply to the coils is also shut down The fans continue running for 90 seconds to insure post ventilation of the ele
15. 3 eeeeeee Be 3e6 o lololo ojojojojojojojofoljojo joojo jojojo K1 K2 K3 12V 12V IN1 IN2 IN3 IN4 INS ING IN7 IN8 IN9 12V GND T 5 GNDOUT1 OUT2 0 10 Vdc b Wiring to several circuits in parallel a cs o ae pl a u Boog 12V INT IN2 IN3 IN4 INS INS INT INS IND 12V 12V INT IN2 INS IN4 INS INS INT INS INS 12V GND TS GNDOUTI OUT2 ji _ _ _ omowe K1 closed gt soft start K1 open gt softstop K2 gt 0 10V signal maximum impedance allowed 1500 Q K1 K3 closed gt on K3 activated K3 open gt on K3 inactive Caution use gold plated contacts only s 5 2 4 Mode OFF Is not a real working mode it is a way to temporarily shortcut the TAC4 DG master setup It allows if working in TAC4 DG master to stop the fans with the GRC TAC4 But then to restart the fans it is required to choose one of the other 3 working modes 35 5 3 Time slots schedules A GRC TACA allows changing working modes between time slots For instance LS during the day and CA at night The time slot programming is only enabled when the regulation is set to automatic 5 3 1 Setup tab The timeslot programming is done in CA mode by entering specific airflows for each time slot TS and for LS and CPS modes by entering a multiplier which will then be applied to a basic setup So if chosen enter first the LS and CPs basic setup If CA is chosen go to next step The Setup tab to c
16. 5 1 4 Anti frost information The lower left corner of the synoptic provides information on the anti frost function see 4 9 Three different situations may occur 1 Antifreeze function disabled green led off 2 The green led is on indicating that the built antifreeze function is enabled The system automatically reduces supply airflows rate to avoid heat exchanger frosting 3 Pre heating option KWin present electrical coil 1 Electrical coils actual capacity expressed in 5 5 1 5 Damper s CT information option Ifthe CT option is present the actual status of the damper CT is shown in the synoptic screen 42 Dampers closed Dampers open 5 5 2 Alarms tab The Alarms tab gathers the status of each different alarm available The corresponding led turns red once the alarm is activated By pressing the led the GRC displays the details of the alarm A message describes the alarm and suggests appropriate action to solve the problem gt An Alarms Reset button allows restarting the system this should only be done when after having carefully read the alarm message identified the cause of the alarm and solved the issue e ES pee a o PO f mop att 1 IE o eo ALARMS RESET 5 5 3 Setup tab e The Setup tab shows the actual setup assignment of the unit on the supply side e fa post heating system is installed and configured the supply T set point is als
17. Control unit muy Z PAUL WARMERUCKGEWINNUNG TAC4 DG GRC Installation and maintenance Operating INnsvrucwons Please keep carefull Status 06 2013 Paul Warmeruckgewinnung GmbH August Horch Stra e 7 08141 Reinsdorf Germany Tel 49 0 375 303505 0 Fax 49 0 375 303505 55 Table of contents ok PY m a ky E N 4 1 1 4 1 2 4 2 4 2 1 4 2 2 4 2 2 1 4 2 2 2 4 2 3 4 3 4 4 4 5 4 5 1 4 6 4 6 1 4 6 2 4 6 3 4 6 4 4 6 4 1 4 6 4 2 4 7 4 7 1 4 7 2 4 8 4 9 4 10 4 10 1 4 10 2 4 11 4 11 1 4 12 4 12 1 4 13 4 14 PREAM DIC tidad 3 INTOdUCION aci 3 SAN SY een 3 LISS Ss MDI ra ol 3 Funcionales of the regulations ns totes eek eedeniaateecavesceaicete 4 Generell maintenance instructions cccccceesseeeeeeeesseeeseoeenseeeeeoeseeeeeoenseeeeeooanseesseoeeseeessons 5 Generalitat ads 5 Generell schematic of the Maxi Serles occcoconcccccncncconncconnnoonnnnnoncnononnnonnnnnonnnnnnnnnononnnonnnnnnnnos 5 schematic of the T sensors positioning in the maxi unit occccocccnconoccnncncncnncnnncnnononcnnnonanonoos 6 Control panel 3 label located inside the COVET coocccccoccnccocncococnnoconoconocnnnncnnonnnnononononanonenas 6 GRC wiring and TUNTONANINGS iii 7 Instalan O ORG ren tdi deals 7 Oral FAN AORN See eis 8 IN Walnstallalonss rennen 8 Wing OT GER TACA ut A oa 9 Plug SAT MODBUS satellite on CB4 TAC4 DG ooooccccnnccnconoc
18. ESET on the TAC4 DG circuit See 10 in table below Type 11 Alarm indicating failure on T sensor T5 only with NV option or KWout It indicates a failure of the T sensor T5 located in the supply duct and connected to the TAC4 DG circuit opened or short circuit or that it is not connected This sensor is used to regulate the post heating function 14 After fixing the failure reset using ALARMS RESET in the Alarms tab of the Visualization menu or press RESET on the TAC4 DG circuit See 11 in table below Type 12 Alarm indicating that the assigned T cannot be reached only with NV option or KWout If the actual T is lower than the assigned T for more than 15 minutes with the post heating fully opened until See 12 in table below Type 13 et 14 Alarm indicating antifrosting alert only with KWin option In certain air T conditions as measured on the exhaust airflow after the heat recovery indicating that the Kwin has reached its limit the TAC4 DG control can take over to guarantee the antifrost function a Alarm type 13 If T lt assignment T 1 5 C for more than 5 minutes supply and exhaust airflow reduction of 33 if CA or LS and of 25 if CPs for 15 minutes b Alarm type 14 If T lt 5 C during 5 minutes fans are stopped Reset using ALARMS RESET in the Alarms tab of the Visualization menu or press RESET on the TAC4 DG circuit to restart the unit See 13 amp 14 in tab
19. asic configuration Stop fans if pressure alarm activated Fans start torque Prevent stop of the fans deactivation of the softstop function Fire alarm configuration Bypass T Airflow if bypass open Force bypass opening whatever the T AF anti freeze configuration NV speed option if NV installed OUT1 and OUT2 definition In LS mode stop of the fans if Vin lt and or gt set value s In CPs mode positive or negative logical reaction speed of the CPs algorithm Post ventilation configuration Fan run time configuration Display alarms only Access code configuration Factory reset As of June 3rd 2013 Although we put a lot of care in the making of our documentation we cannot be held responsible for any error and or omissions that could have slipped in 45
20. ctrical coils If conditions make that the pre heating coil KWin does not deliver enough capacity to reach the floor T assignment and therefore not insuring the anti frost duty the control will modulate the in and out airflows as follows a If T lt 1 C and T lt floor T 1 5 C for more than 5 minutes If CA and LS mode reduction of in and outgoing airflows to 66 of the assigned airflows If CPs Mode reduction to 75 of the assigned pressure This setup is maintained during 15 minutes after which the 100 airflow pressure assignment is reestablished Actions on GRC Actions on TACA DG circuit LED ALARM LED Pa AL1 Relay R2 Relay LED AF on SAT3 O R 1 Red ON Assignment reduction b If T lt 5 C during 5 minutes the unit is stopped Actions on GRC Actions on TAC4 DG circuit LED ALARM LED Pa AL1 Relay R2 Relay LED AF on SAT3 O R 1 Red Alarm status Blink Stopped Restart is made by resetting press RESET knob on TAC4 DG circuit or with the ALARMS RESET tab in Alarms of the Visualization menu 19 4 11 KWout post heating electrical coil control option The post heating coil is delivered factory mounted Its purpose is to keep a constant supply air temperature using the TAC4 DG regulation The assigned T is configured via Assignment T of Setup menu see 5 2 1 1 4 2 2 1 or 5 2 3 1 according to selected working mode Features provided by the TAC4 DG regulat
21. ding the assigned airflow Automatic management of the 100 bypass to allow free cooling Automatic management of inlet dampers CT Heat exchanger antifreeze protection system by modulation of airflow or with an intelligent pre heat electrical coil KWin Post heating management of water coil NV or electrical coil KWout battery to keep a set temperature constant The following options can be combined with TAC4 DG controller SAT TAC4 BA KW Option Regulation of 2 external heat exchangers electrical water hot and or cold SAT TAC4 MODBUS Option MODBUS RTU communication please refer to TAC4 DG MODBUS RTU installation and user s manual for detailed information 3 Generell maintenance instructions 3 1 Generell information 3 1 1 Generell schematic of the maxi series Maxi flat series Maxi series 1 Main switch for power supply fans and control 2 Main switch for power supply to pre Kwin and or post Kwout heating coils options 3 Centralized wiring box of the CB4 TAC4 DG circuit factory pre wired 4 Supply fan s 5 Exhaust fan s 6 Post heating water or electrical coil NV or KWout option 7 Motorized damper at fresh air inlet CT option 8 F7 class filter at fresh air inlet G4 class filter extract air maxi flat right model versions 9 Pre heating electrical antifreeze coil KWin option 10 Drain pan and drain maxi flat series drain pipe out 11 Air Air heat exchanger bypass 100 12 G4 filter on extract a
22. dla dra Maia a a 21 Regulation for external coil s SAT TAC4 BA KW Opti0N occcccoccccoccnccoccnccccncccncncconcnononos 22 A E 23 5 5 6 Actual airflow pressure output signals ooccccoccnnccccnncocnnnconnnnnnnnnononononnnnnnnnnnononnnononenenonons 23 Eonfiguralion and USO anne id 24 Principles of GRO TACA 22 22 Es a ei 24 Setup and Tan COMMON seais aaa 25 CA mode setup operating instructions and wiring diagrams oooccncccoccnnccnncnnnononnnnnnoncnnnnnos 25 Sie 8 on Oy AMOJ ns areas seen 25 Operating CA mode with GRC TAC4 master Control screen ooccccccoccnnccoccncononcnnononcnnnnnas 27 Operating CA mode with TAC4 DG master ooocoonnncccncccncccnccnnononcnncnnnnnnnononnnnnnnnnnnonancnconanennnnnos 27 LS mode setup operating instructions and wiring diagrams cccccoccnncccoccnnononcnnnnnnnoncnnanonoos 28 SED ES Moderner enter 28 Operating LS mode with GRC TAC4 master Control screen us0444440BRR nennen 30 Operating LS mode with TAC4 DG master 240002004sennennnn nennen nnnnnn essen nennen ennennnnnnn 31 CPs mode setup operating instructions and wiring diagrams s442444002ennee nennen 32 SSUP ASMA cco een eae eee ee 32 Operating CPs mode with GRC TAC4 master control SCreen ccccooncncccccccnconoccnnononcnnnnnas 34 Operating CPs mode with TAC4 DG master cccccooccnccoccnccconcnccconcnnnonannncononcnnonannnnnnannnnnnnns 35 ModS OF Erare eae
23. e explanations on the 3 options Exhaust Supply Enter airflow ratio between exhaust airflow fans F3 F4 and supply airflow fans F1 F2 Not applicable if CPs on supply and exhaust on K3 Enter multiplier of the CPs assignment when contact between terminals 12V and K3 on TAC4 DG circuit is closed or if in position smallest fan on the control screen Not applicable if CPs on supply and exhaust Init pressure via flow rate or manually Specify method to determine reference pressure If Init pressure VIA AIRFLOW TAC4 DG automatically computes set point pressure value Xxx V Last registered pressure set point 0 0 if never made Non editable in this type of initialization To edit it directly switch to manual initialization xxxx mh Enter nominal airflow at which the pressure set point must be determined Start Make sure that the panels of the unit are well closed with filters in place Press Start to start initialization of Paret optional if been made previously A confirmation is requested After 1 minute the control memorizes the calculated pressure values Pare once the requested airflow is reached While initializing airflow and Voltage values are displayed If MANUAL Init pressure enter pressure set point directly xx x V Enter pressure setpoint value CPs on SUPPLY air The airflow delivered by the supply fans is automatically modulated to obtain a constant pressure as measured by the pressure sen
24. e the post cooling feature between 2 dates avoid cooling in the winter 4 6 Alarms 4 6 1 Alarm types The TAC4 DG features 14 alarms types divided in 9 categories alarms table in 4 5 2 Type 1 Alarm indicating a fan failure 1 This alarm indicates a failure of fan Fx Main cause for this alarm is power supply to the motor or the motor itself Check also the wiring and fan connections to TAC4 DG circuit See 1 in table 4 5 2 below Type 2 Alarm on the pressure variation CA and LS modes only This alarm indicates a pre established pressure level has been reached on fan Fx Pressure alarm setup in CA or LS mode see 5 2 1 1 and 5 2 2 1 See 2 in table below Type 3 Alarm indicating a problem while initializing reference pressure for a pressure alarm 1 4 possibilities e Actual airflow lt requested airflow The requested working point is too high too much pressure for the maximal available pressure at the requested airflow for this fan e Actual airflow gt requested airflow the nominal airflow requested to initialize the pressure alarm cannot be reached because the lower limit of the fan s operating zone has been reached e Very unstable pressure pumping e Assigned airflow not reached after 3 minutes See 3 in table below 13 Pares cannot be identified and the fans are stopped Press ALARMS RESET in Alarms tab of the Visualization menu or with the RESET key on the TAC4 DG ci
25. er supply airflow 2 enabled if contact between terminals K2 and 12V closed on TAC4 DG circuit or if fan2logo is selected in the GRC TAC4 control screen The exhaust airflow is calculated automatically based on Ex Su Airflow 3 Enter supply airflow 3 enabled if contact between terminals K3 and 12V closed on TAC4 DG circuit or if fan3logo is selected in the GRC TAC4 control screen The exhaust airflow is calculated automatically based on Ex Su b Alarm Pa tab Pressure alarm dP supply dP exhaust Pa ref init Supply Exhaust Start Alarm threshold Working mode CA Address 1 Main Alarm Pa T Setpoint a Pressure alarm Alarm threshold dPsupply 200 Pa Supply 348 Pa LLJ dP exhaust 200 Pa 1540 m h UN Pa ref init Start Supply 11500 m h Exhaust 1350 m h Exhaust 263 Pa 1414 m h gt Pressure alarm is optional To activate pressure alarm press the dark green diode disabled when diode becomes bright green it is enabled Setup Pa Alarm on supply side Enter pressure increment corresponding to the airflow required to reach the reference pressure on supply side Setup Pa Alarm on exhaust side Enter pressure increment corresponding to the airflow required to reach the reference pressure on exhaust side Reference pressure Paret determination Paret is defined by running the supply and exhaust fans at airflows specified below exhaust airflow is de
26. he alarms on the alarm screen see 5 5 2 e The Alarms diode signals any alarm except a pressure alarm The diode is red when at least one alarm is active Press to see details of the alarm s on the alarm screen see 5 5 2 e Press OFF to stop the fans e The green led shows which selection has been made big fan 100 small fan x or off e If on K3 has been set to a different value than 100 then press little fan to apply the little fan assignment in this case x 50 e Actual supply and exhaust airflow rates are displayed on the right of the screen Wiring diagrams a Wiring to 1 circuit SSeS pPeeeeeeeeee Es 3 6 ojojojo ojojojojojojofojojojo joojo ojojo K1 K2 K3 12V 12V IN1 IN2 IN3 IN4 IN5 ING INT INS IN9 12V GND T 5 GNDOUT1 OUT2 0 10 Vdc b Wiring to several circuits in parallel KR K3 12V z a g 0 10 vee K2 gt 0 10V signal maximum impedance allowed 1500 Q 34 5 2 3 3 Operating CPs mode with TAC4 DG master e The start stop of the fans is controlled by entry K1 of the TAC4 DG circuit e The pressure sensor is connected to entry K2 of the TAC4 DG circuit e K3onthe TAC4 DG circuit can be used to activate the multiplier on K3 on the airflow assignment In this configuration the control screen of the GRC is always accessible but does not allow airflow assignment modifications Wiring diagrams a Wiring to 1 circuit BSB 33
27. he mounting brackets supplied in the GRC kit GRC y The cable entry holes in the box will have to be done by the installer 4 1 2 In wall installation This kit GRC allows the touchscreen GRC to be flush mounted in a wall It includes a box and a stainless steel front panel on which the GRC can be fixed Fix the GRC in the stainless steel panel with the mounting brackets supplied in the GRC kit te The cable entry holes in the box will have to be done by the installer 4 2 Wiring of GCR TAC4 Follow these steps to connect the GRC TAC4 to the CB4 TAC4 DG 4 2 1 Plug SAT MODBUS satellite on CB4 TAC4 DG First make sure the power is shut down then plug the SAT MODBUS on the CB4 TAC4 DG circuit connector see picture A Warning plugging the SAT in the wrong connector can be fatal to both circuits 4 2 2 Wiring diagram to connect the GRC TAC4 REC to the SAT MODBUS GRC TACA uses COMO slave COM2 MO DB9 Re black wire brown wire metal wire 4 2 2 1 Cable specifications e Recommended cable category 5 shielded twisted pair FTP cable with a section of 0 26 0 50 mm Use 1 pair to connect GND and 12V and 1 pair to connect B and A e Maximum cable length 1000 m e Keep this communication cable at distance from power cables e lf the unit is installed in a location with high electro mechanical interference levels we strongly advise to connect the armored shield of the TAC4 DG GRC cable
28. imity to the device e The instructions for the regular replacement of the filters or the cleaning of the supply and exhaust air valves are to be strictly followed e The specifications stated in this document may not be changed e Any modification of the maxi is prohibited e In order to guarantee that the device will be regularly controlled it is recommended to conclude a maintenance contract Your supplier can give you the addresses of authorised installers in your area 1 1 1 Used symbols The following symbols are used in this manual CS Caution special note A Risk of injury of the user or the installer damages to the device impairment of the operation of the device if the instructions are not carried out properly 2 Functionalities of the regulation The TAC4 DG controller is mounted in the units of maxi series This handbook describes the functionalities of the TAC4 DG when using a GRC TAC4 display A SAT MODBUS satellite option is used to connect the graphic remote control GRC The TAC4 DG with GRC TAC4 controller provides the following features Monitoring of the fans exhaust and supply in chosen working mode constant airflow CA constant pressure CPs or constant airflow linked to 0 10V signal LS e g CO2 sensor Management of 6 timeslots Alarms on defects set points overpressure Fire alarm airflow management BOOST function allowing to force a pre set airflow supply exhaust overri
29. ion e Regulation of static relay of the electric coil in function of assigned supply T and actual measured supply T e To avoid overheating regulation checks if fans are operating before supplying electric coil This is factory pre wired e Apost ventilation of the coil function is available see advanced configuration When fans are requested to stop first the electrical coils are shut down then the fan operate for 90 seconds minimum value before stopping This feature cools the coils before actually stopping the fans It is possible to stop the post heating with an external contact IN6 see detail in the 4 10 1 e Set point alarm see details in section 4 5 1 and 4 5 2 e Sensor alarms see details in section 4 5 1 and 4 5 2 4 11 1 Wiring diagrams e Wiring the supply T sensor to the TAC DG board SSS FBSR Pe eee 6101 010 otojojojojojojojojol o joojo ojojo K1 K2 K3 12V 12V IN1 IN2 IN3 IN4 INS ING INT IN8 IN9 12V GND T 5 GNDOUT1 OUT2 Sonde T T Sonde T sensor e Possibility to stop the post heating with an external contact HE RE E O A O e olololelalolo ololoalo 12V IN1 IN2 IN3 IN4 INS ING INT IN8 INQ 12V Contact closed post heating OFF Contact open post heating ON 4 12 Post heating NV option regulation The post heating coil is delivered pre wired The 3way valve is delivered unmounted The NV option on the TAC4 DG regulation allows maintaining a pre set supply T constant
30. ir G4 or F7 class filter fresh air maxi flat right model versions 13 Motorized damper at extract air inlet option 14 GRC TAC4 CS All electrical connections made the installer are in 1 2 3 3 1 2 Schematic of the T sensors positioning in the maxi unit To allow easier identification of the temperature sensors 4 different wire colors are used T1 black wire T2 white wire T3 blue wire T4 amp T5 green wire not at maxi flat series 3 1 3 Control panel 3 label located inside the cover MOTOR CONTROL CASLES CN or z t 3 SHH SAT MODBUS SAT BAKW Y NM M7 m A MN NA IN DIA Ev s T END CAT EMO CUTE CUTS Ne y Connexion to the RC TAC4 cid 120136 BYPASS output to bypass actuator prewired CT output to CT actuator s option prewired KWout output for KWout power regulation option prewired KWin output for KWin power regulation option prewired 1 from outdoors T sensor prewired S2 from indoors T sensor prewired S3 to outdoors T sensor prewired 4 NV anti freeze portection T sensor option prewired S5 supply T sensor for NV KWout regulation option prewired AL1 DEFAULT ALARM B A GND 12V connection to the RC TAC4 K1 CA MODE mh K1 LS CPs MODE START STOP K2 CA MODE nh K2 LS CPs MODE 0 10V INPUT K3 CA MODE m h K3 LS CPs MODE ON K3 IN1 Master selection IN2 dPa external pressostat digital inp
31. le below 4 6 2 Alarm table Actions on GRC Actions on the TAC4 DG circuit Action on TAC4 fans Category Type LED LED Pa AL1 relay R2 relay LED AF Alarm of SAT3 O R 1 Fans Alarm status Stopped Pressure 2 Red Closed 1 Init Pa 3 Red Alarm status Stopped Set point 4 Red Software 5 Red Alarm status Stopped Fire alarm 6 Red Alarm status Stopped 2 Maintenance 7a Red Alarm status 7b Red Alarm status Stopped 8 T sensors 9 Red Alarm status Stopped T sensors 10 Red Alarm status y T sensors 11 Red Alarm status Set point 12 Red Anti freeze 13 Red ON Reduced Anti freeze 14 Red Alarm status Blinking Stopped no action 1 Unless the status has been changed in advanced setup to stop the fans 2 See details in 4 5 4 15 4 6 3 Wiring diagrams Option Optie SAT3 230Vac 4A Sp cifications voir manuel d installation SAT 3 Specificaties zie SAT3 handleidingsmanued Specifications see SAT3 installation manual AL1 OFF AL APa AL APa OFF ON or POWER OFF 4 6 4 Fire alarm The TAC4 DG control can be connected to a fire detection system to stop start the supply exhaust fans according to fire regulations set the airflows in case of fire alarms according to fire regulations allow firemen to overrule the existing setup and start stop the fans as needed 4 6 4 1 Configuration The supply
32. motorized from factory No wiring or installation is required by the installer The O R 4 relay SAT3 option of the TAC4 DG circuit indicates the opening closing of the bypass Operating description e Die Opening of 100 bypass if all following conditions are met o Outside T sensor T1 lt inside T sensor T2 1K o Outside T sensor T1 gt 15 C o Inside T sensor T2 gt 22 C e Closing of 100 bypass if one of the following conditions is met o Outside T sensor T1 gt inside T sensor T2 o Outside T sensor T1 lt 14 C o Inside T sensor T2 lt 20 C Allthese temperature SET values can be modified using ADVANCED SETUP 17 Opening of the bypass can be forced whatever the T with an external contact 12V IN1 IN2 IN3 IN4 INS IN6 INT INS INS 12V Contact open automatic bypass operation in function of T1 T2 and setup values Contact closed bypass is open whatever T1 and T2 values When the bypass is open the pressure alarm is deactivated For the maxi 4002 and maxi 6002 models the maximum airflow when the bypass is open is reduced respectively at 3500 m h and 5300 m h For the other models there is no reduction of the maximum airflow when the bypass is open 4 9 Opening closing of dampers CT option at inlet The opening and closing of a damper s mounted at both supply and exhaust air inlets are automatically managed by the TAC4 DG regulation The actual fan star
33. ne alarm is active Press to see details of the alarm s on the alarm screen see 5 5 2 Press OFF to stop the fans The 3 supply constant airflows configured airflow1 airflow2 and airflow3 are selected by pressing the corresponding fan1 2 3 logo on the screen The active selection is shown by the LED located below Actual supply and exhaust airflow rates are displayed on the right of the screen 5 2 1 3 Operating CA mode with TAC4 DG master One of the 3 assignment constant airflows airflow1 airflow 2 and airflow 3 is selected using the K1 K2 K3 terminals on TAC4 DG The selection made is highlighted by the corresponding LED of the CONTROL screen on the RC TAC4 The exhaust airflow is equal to EXT PUL of the supply airflow Wiring diagrams a Wiring 1 circuit to 3 external contacts A A E ojoljolo ofojojojojojofoljojojo K1 12V 12V IN1 IN2 IN3 IN4 INS ING IN INS INY 12V K1 closed gt airflow mh K1 K2 closed gt airflow mh K2 K1 K3 closed gt airflow m h K3 K1 K2 K3 open gt soft stop Caution K1 K2 K3 Use gold plated contacts only 27 b Wiring several circuits to 3 external contacts K1 closed gt Airflow 1 K2 closed gt Airflow 2 K3 closed gt Airflow 3 K1 K2 K3 open gt soft stop Caution K1 K2 K3 Use gold plated contacts only 5 2 2 LS mode setup operating instructions and wiring diagrams 5 2 2 1 Setup LS mode To start the setup e Inthe home screen select your
34. ng 25 0 C Cooling 16 0 C SETUP V Enter set point T for exhaust air heating Details see 4 10 3 11 Enter set point T for exhaust air cooling Details see 4 12 29 5 2 2 2 Operating LS mode with GRC TAC4 master Control screen Enter in control screen by pressing the Control knob of the side menu The supply airflow assignment is function of a 0 10V signal connected to input K2 of the TAC4 DG circuit linear link The exhaust airflow is linked to the supply airflow by a user defined value EXT PUL If option 0 10V on K3 is activated the assigned exhaust airflow is determined by a separate 0 10V signal connected to K3 PAUL W RMER CKGEWINNUNG Address 1 A Pa A Alarms AIRFLOW CONTROL G R C won 2 ud O et Supply 3 2 v 708 354 0 mh Exhaust 637 318 Om h CONTROL e The Address box shows the Modbus address of the TAC4 unit currently monitored It is not editable via this screen To change this address go to Viewing screen see 5 5 or Network see 8 5 4 e The Pa diode signals a pressure alarm The diode is red when at least one pressure alarm is active Press to see details of the alarms on the alarm screen see 5 5 2 e The Alarms diode signals any alarm except a pressure alarm The diode is red when at least one alarm is active Press to see details of the alarm s on the alarm screen see 5 5 2 e Press OFF to stop the fans e The green led sho
35. o displayed e By pressing View setup the detailed parameters of the selected working mode are displayed e fa pressure alarm has been configured the parameters threshold values are also displayed 43 1500 25 0 _ CA 2000 1500 1000 263 1414 5 5 4 Flows tab The Flows tab gives detailed information about actual airflows and pressures per fan one or two fan s by flows depending on the type of unit installed and the actual temperatures measured 5 5 5 I O tab The Flows tab gives detailed information about actual airflows and pressures per fan one or two fan s by flows depending on the type of unit installed and the actual temperatures measured Open Open Open Open Open Open E32 Open _10 Bi Closed 44 5 5 6 Config tab The Config tab shows the factory setting data Unit type options installed language chosen can be edited here and the software version Address 1 Synoptic Alarms Setup Flows I O Config REC type 885104 Options built in Choose language Preheat KWin English Postheat NV TACA Ver 1 99 3 CT im Yes SATBA KW None VISUAL V 5 6 Advanced setup Using this feature requires a good knowledge of the TAC4 DG control system The functions of the ADVANCED SETUP are described in annexes 1 and 2 of the installation and maintenance instructions The advanced configuration allows modifying the parameters not present in the b
36. onccnnncnnconanononnnnonnononcnnonnnnnnonnanonnos 9 Wiring diagram to connect the GRC TAC4 REC to the SAT MODBUS ooiccccoccnccnnccnconnncnnnnas 10 GablesSpeeiliealons een Een 10 Wiring several circuits on one GRC j ccccccccesceccesseeeceaseeeceeseecceaueeecsaueecsauseeessageeessageeesseaes 10 POWErGRE TACA road 11 Seleeiing themasten se ein 11 FAN COLA Ol een ee ee ea ee ee 12 Limesslols SCNCOUI SS aa ae ernennen 13 DENINION See os 13 A A A EEE 13 E See ee A ae a ea ee E 13 A A oe eee eer 15 Wa AG AS lennon rien 16 FeV OMA IN NEE ny A 16 Soles AA A ene EE o A 16 Wiring diagram of fire ALT zusehen 16 BOOS TIN CUO es 17 A AT 17 A CIA eli a E ee E A AI A A AE 17 BYPASS TUNGUON IEC COOIING puc 17 Opening closing of dampers CT option at inlet ccccoooccnncccnnnccnonnnnononennononcnnnonanenos 18 Heat exchanger antifrost protection system cccconcncoccncccccncccnncccnnnnnonnnonononononononononononononoss 18 Protection antifreeze via pulse flow reduction coooccccoccnccccnncccnnnoconnnnnnnonononononcnononncononnos 18 Antifrosting the heat exchanger with 1 pre heating KWin option oocccoccncconcnccccnncnoo 19 KWout post heating electrical coil control option 2uus02440eRnennnnnnennnn nennen 20 WIMadiagras cenit iii ed veivananels 20 Post heating NV option regulation ooccccococnoccccononcccononcnnononononconnnnannnconnnnnononnnnnnnanos 20 WINE
37. onfigure LS or CPs basic setup e enter the date and time e f LS mode o press the LS button Enter the Vmin and Vmax values and corresponding airflow rates Specify if the fan must stop above or and below a certain voltage value If Yes please specify Vlow and or Vhigh 0 10V on K3 allows controlling the exhaust airflow rate via a second signal connected on K3 O 0 127 7 2011 Wednesday e If CPs mode Specify on which side pressure is kept constant exhaust and or supply side Specify how reference pressure is initialized via nominal airflow or pressure value If via nominal airflow enter airflow rate value and press start to start initialization If via pressure value enter Volt value corresponding to the pressure assignment value O O I Y 36 5 3 2 Week planner tab The timeslots feature allows configuration of complex timeslots Six timeslots per day thus 42 different configurations For each time slot the working mode and the assignment must be configured Configuring a time slot e Press on one of the boxes on the screen e Indicate the start time of the time slot e Select the working mode e Enter basic setup multiplier if LS or CPs or constant airflows exhaust and supply if CA mode e Enter exhaust supply ratio if LS or CPs mode e Specify if by pass is in automatic mode open or closed e Specify T set points in case of post heating or post cooling if option pre
38. rcuit If it occurs during initializing an alarm pressure 2 options 1 No action is taken the control will operate without pressure alarm 2 Corrective action is taken change the working point to one well located in the working zone of the fan by reducing the pressure system modifying the nominal airflow and restart the setup operation If it occurs during initializing of the assignment pressure in CPs mode A corrective action must be taken change the working point to one well located in the working zone of the fan by reducing the pressure system modifying the nominal airflow and restart the setup operation Type 4 Alarm indicating the system cannot fulfill the assignment 1 The assignment keeping certain airflow or a certain pressure constant cannot be fulfilled because the upper or lower limit of the fan s working zone has been reached See 4 in table below Type 5 Alarm indicating a data failure in the control circuit Crucial data from the circuit board has been lost Try a TOTAL RESET using the Admin tab in the Advanced Setup menu If still not solved send the defect TAC4 DG circuit for reprogramming See 5 in table below Type 6 Fire Alarm with an external contact connected to a fire detection system See 6 in table below For more details see 4 5 4 After a fire alarm it is necessary to perform a RESET use ALARMS RESET in the Alarms tab of the Visualization menu or the RESET
39. s a handbook for installation maintenance and customer service work We recommend that any intervention in the appliance installation company should be consulted Subject of this operating manual is the control unit TAC4 with the operating unit GRC TAC4 Possible accessories are only described insofar as it is necessary for the appropriate operation Please see the particular manuals for further information on accessories If you have any questions that have not been answered or have not been sufficiently answered in this documentation please contact the company Paul W rmer ckgewinnung GmbH We will be glad to help you 1 Introduction 1 1 Safety Please always observe the safety instructions in this operating manual The non observance of the safety instructions warning notices notes and instructions can lead to injuries or damages to the maxi e Unless otherwise stated in this operating manual only an authorised installer is entitled to install connect put into operation and maintain the maxi e The installation of the maxi is to be performed according to the general local building safety and installation instructions of the corresponding local authorities of the water works and electric works and other official regulations and directives e Always follow the safety instructions warning notices notes and instructions described in this operating manual e Please keep this manual during the complete life time of the maxi in prox
40. s mode 5 2 2 and 5 2 3 to be the master means to control the start stop of the fans as well as to activate deactivate a different assignment assignment multiplier 2 setups are possible 1 Or TAC4 DG circuit is master contact between terminals IN1 and 12Vdc of TAC4 DG circuit is closed The TAC4 DG circuit allows control of the fans through its inputs The GRC TACA allows to configure and to clearly visualize all the parameters 2 Or GRC TACA is master contact between terminals INT and 12Vdc of TAC4 DG circuit is open The TAC4 DG circuit is then in control of the system and serves as a control hub between fans and the GRC TACA The GRC TACA allows to configure and to visualize all the parameters on the display screens The GRC TACA controls the fans TAC4 DG circuit is master GRC TAC4 is master Pa CB4 TAC4 DG a CB4 TAC4 DG GRC TAC4 Control Visualization Control Visualization Wiring diagram IN2 IN3 IN4 INS ING IN INS INY 12V MASTER SELECTION Contact closed TAC4 DG circuit master Contact open GRC TAC4 master Caution Use gold plated contact only The use of this contact enables to switch automatically from GRC TAC4 master to TAC4 DG master Using this you can for instance e Work in GRC TAC4 master and switch in position TAC4 DG master to stop automatically the fans attention in this case the inputs K1 K2 K3 on the TAC4 DG have to be disconnected from the 12V e Work in
41. s of a TAC4 unit o Enter current address of the TACA unit in the From field o Enter new address in the to press field o Press Apply button to carry out change e to identify each unit on the network by name and corresponding address only 5 names can be displayed at the same time but each unit up to 247 can have his own name 5 4 3 2 Method Each CB TACA is factory programmed with a Modbus address of 1 To create a network it is therefore necessary to change this address before connecting the different units on the same network To do this follow the following sequence e ensure that all units on the network are powered of or disconnected from the network e Turn on or connect to network the first unit and enter an address different than 1 e Enter address and identification name of unit in the list e turn on or connect to network the second unit and enter a different address than 1 or than the first address entered e Etc e tis advised to keep the 1 address for the last unit connected 38 5 5 Visualization The display screens allow accessing all the useful information These screens are read only They do not allow editing or setup changes In the case that several units are supervised by the same GRC network it is interesting to easily navigate from one unit to another to get a quick overview of the different units installed To do this it is possible to modify the current Modbus address
42. sent ES Es ES EN ES ES h 20 008 E E fj 9 Bo E ES El E EN E ES 5 3 3 Year planner tab seasonally or yearly planner The season tab allows adapting the configuration according to the time of year and to option present or not e Specify whether to disable the bypass press button and introduce period e specify whether to disable the post heating press button and introduce period e specify whether to disable the cooling coil press button and introduce period 5 4 Network management One GRC TAC4 can be linked to several units in parallel 5 4 1 General Modbus communication allows interaction between several TAC4 regulations In a Modbus network each unit is referenced by its Modbus address a number from 1 to 247 It is forbidden to have two units with the same Modbus address on one network Default TAC4 CB Modbus address is 1 37 5 4 2 Network Visualization Network View tab allows changing the communication address on the network as well as to see a list of selected units on the network and programmed by the installer This list of maximum five units is a reminder for the user to easily identify the units It is the responsibility of the installer to be certain that this list actually corresponds to the actual network put in place GRC TAC4 cannot detect mismatches of this type 5 4 3 Edita network 5 4 3 1 Screen description The Edit tab allows e to modify an addres
43. sor in the duct The exhaust airflow is equals to EXT PUL of the supply airflow 32 CPs on EXHAUST air The airflow delivered by the exhaust fans is automatically modulated to obtain a constant pressure as measured by the pressure sensor in the duct The supply airflow is equals to 1 EXT PUL of the exhaust airflow CPs on SUPLY EXHAUST air the supply fan s airflow is automatically modulated to obtain a constant pressure as it is measured by a pressure sensor connected to K2 And the exhaust t fan s airflow is automatically modulated to obtain a constant pressure as it is measured by a pressure sensor connected to K3 b Alarm Pa tab The unit being programmed to maintain a constant pressure the pressure alarm based on the calculation of the working point is not applicable However it is possible to connect an external alarm between the IN2 and 12V input terminals c T assignment tab appears only if NV or KWout or SAT BA option is present 33 5 2 3 2 Operating CPs mode with GRC TAC4 master control screen Enter in control screen by pressing the Control knob of the side menu e The Address box shows the Modbus address of the TAC4 unit currently monitored It is not editable via this screen To change this address go to Viewing screen see 8 5 5 or Network see 8 5 4 e The Pa diode signals a pressure alarm The diode is red when at least one pressure alarm is active Press to see details of t
44. termined by the Ex Su ratio Paret for supply and exhaust are consequently different Make sure that the panels of the unit are well closed with filters in place Press Start to start initialization of Pares optional if been made previously A confirmation is requested After 1 minute the control memorizes the calculated pressure values Pare once the requested airflow is reached While initializing exhaust and supply airflows and pressures are displayed Indicates the airflow rates and pressures that will be used to calculate the Pa alarm threshold airflows reference pressure increments c T assignment tab appears only if NV or KWout or SAT BA option is present 26 Working mode CA Address 1 Main Alarm Pa T Setpoint gt Supply air temperature setpoint T Heating 25 0 N Cooling 16 0 C vi 5 2 1 2 Operating CA mode with GRC TAC4 master Control screen Enter in control screen by pressing the Control knob of the side menu The Address box shows the Modbus address of the TAC4 unit currently monitored It is not editable via this screen To change this address go to Viewing screen see 8 5 5 or Network see 8 5 4 The Pa diode signals a pressure alarm The diode is red when at least one pressure alarm is active Press to see details of the alarms on the alarm screen see 5 5 2 The Alarms diode signals any alarm except a pressure alarm The diode is red when at least o
45. this menu More information see advanced setup documentation e Network configuration and visualization of a network of several TAC4 units see 5 4 e Timetable configuration of the timetable see 5 3 It is possible to protect these different menus by access codes The configuration is made via the advanced setup 24 How to operate e Select the white cells editable to change the value A numeric keypad is automatically displayed to enter the appropriate value Press Enter to confirm e f entered value is not valid out of range it is ignored and the previous value is saved e Press on drop down menus to see the different possible options Press on chosen option you want to select e Shaded boxes are not editable 5 2 Setup and fan control Fans can be managed in 3 different control modes CA LS or CPs A fourth mode OFF allows forcing a shutdown of the unit For more information refer to the 4 3 5 2 1 CA mode setup operating instructions and wiring diagrams 5 2 1 1 Setup CA mode To start the setup e Inthe home screen select your language with the dropdown menu e Open the sidebar by clicking on the arrow at the bottom left of the screen e Inthe menu select Setup e Inthe dropdown menu at the top of the screen select current mode CA a General tab Ex Su Enter of ratio of between exhaust fans F3 F4 and supply fans F1 F2 airflows 25 Airflow 2 Ent
46. to the alarm screen see 8 5 5 2 5 Diode representing pressure alarms The diode is red when a pressure alarm is active Press diode to be automatically directed to the pressure alarm screen see 5 5 2 6 Outdoor air T T1 black wire sensor 7 Actual exhaust airflow rate and supply air T T3 blue wire sensor 39 5 5 1 2 Air Flows tab Collared arrows provide a schematic and intuitive representation of the air flows in the unit Exhaust and supply airflows with heat exchange between flows Exhaust and supply airflows without heat exchange between flows bypass open free cooling Exhaust airflow only supply fans stopped Supply airflow only exhaust fan stopped 5 5 1 3 Post heating information if NV or KWout or BA option present 40 The upper right corner of the synoptic provides supply air information This can be displayed in 4 different ways 1 No post heating 2 NV post heating inside unit hot water coil 1 Exhaust flow air T T5 green wire sensor installed by customer in the ducting 2 3 way valve opening control signal 3 KWout post heating inside unit electrical coil 1 Exhaust flow air T T5 green wire sensor installed by customer in the ducting 2 Electrical coil s used capacity expressed in 4 View BA BA KWext settings if controlled by SAT TAC4 BA KW option see Installation and user s manual for additional information 41 5
47. tup is delayed to allow prior opening of dampers When fans are stopped the dampers are closed 4 10 Heat exchanger antifrost protection system There is a risk of frosting the heat exchanger in the exhaust airflow Two antifrost protection systems are available e Supply air volume reduction less cooling capacity e Modulation of capacity of an electrical coil located before the inlet air enters the heat exchanger KWin option 4 10 1 Protection antifreeze via pulse flow reduction This functionality is built in the standard TAC4 DG and must not be configured by the installer It is automatically de activated if an optional KWin pre heater see 4 9 2 is installed in the unit Description In order to avoid the risk of frosting the heat exchanger the supply airflow is linked to the temperature value of the exhaust airflow measured after the heat exchanger sensor T3 e T T3 gt 3 C the assigned airflow is as defined by SETUP e 0 C lt T T3 lt 3 C the airflow assigned by SETUP is automatically modified as follows IF CA or LS working mode the supply airflow will progressively drop down to 33 AF of the assigned airflow AF If CPs mode the assigned pressure will drop to 50 AF of the assigned pressure AF In these conditions LED AF is ON The antifrost led on the Synoptic screen Visualization menu of GRC TAC4 is on and an explanatory text appears in the flow tab e T T3 lt 0 C the
48. ut IN3 Fire alarm IN4 Bypass INS Real time clock auto manu ING ON OFF post heating NV KWout IN ON OFF SUPPLY if fire alarm INS ON OFF EXHAUST if fire alarm INS BOOST OUT1 0 10V OUTPUT airflow pressure OUT2 0 10V OUTPUT airflow pressure O R 1 output relay 1 SAT3 PRESSURE ALARM O R 2 output relay 2 SAT3 FAN ON O R 3 output relay 3 SAT3 WATER PUMP for NV option O R 4 output relay 4 SAT3 BYPASS STATUS SAT MODBUS option see installation manual SAT BA KW option see installation manual 4 GRC wiring and funtionalites The regulation is delivered fully factory pre wired Nevertheless the TAC4 GRC graphic remote control and the i o signals if any must still be wired by the installer 4 1 Installation of GRC housing All the configuration data is enclosed in the TAC4 DG circuit It is thus possible to A The GRC is designed for indoor use For outdoor application use a weatherproof g remove the GRC without disrupting the installation The GRC is delivered with attachments and fastening screws Mounting panel thickness should not exceed 5mm The rectangular indent in mounting panel is 147x82mm 4 Panel installation holddown groove Attachment mounting brackets Attachment on GRC 4 1 1 On wall installation This kit GRC includes a box with an opening in the lid where the GRC touchscreen fits perfectly Fixthe GRC in the lid with t
49. ws which selection has been made big fan 100 small fan x or off e f on K3 has been set to a different value than 100 then press little fan to apply the little fan assignment In this case x 50 e Actual supply and exhaust airflow rates are displayed on the right of the screen a Wiring to 1 circuit Sea BSS ee ee o lolo o ojojojojojojojojojojo joopo jojojo K1 K2 K3 12V 12V INT IN2 IN3 IN4 INS ING IN7 IN8 IN9 12V GND T 5 GNDOUT1 OUT2 L 0 10 Vde b Wiring to several circuits connected in parallel GND T S K3 Ki R K3 12V 12V INT IN2 INS IN4 INS ING INT INS IND 12V GNDOUT1 OUT2 Ki KR 7 12V IN1 IN2 IN3 IN4 INS INS INT INS ING 12V GND T S GNDOUT OUT2 A GEHE K2 0 10V signal maximum impedance allowed 1500 Q 30 5 2 2 3 Operating LS mode with TAC4 DG master The assignment value for the supply constant airflow is a function of a 0 10V signal connected to terminals K2 of the TAC4 DG circuit The link between voltage and airflow is linear The exhaust constant airflow is equal to EXT PUL of the supply airflow except if 2 separate 0 10V signals are used to determine exhaust and supply constant airflows see advanced setup e Starting stopping the fans is carried out with entry K1 on the TAC4 DG circuit e The pressure sensor is connected to entry K2 of the TAC4 DG circuit e The K3 entry of the TAC4 DG can be used to activate the pre set multiplier on K3
50. xhaust 263 Pa Supply 1500 m h 1414 m h Exhaust 1350 m h V Pressure alarm is optional To activate pressure alarm press the dark green diode disabled when diode becomes bright green it is enabled Setup Pa Alarm on supply side Enter pressure increment corresponding to the airflow required to reach the reference pressure on supply side Setup Pa Alarm on exhaust side Enter pressure increment corresponding to the airflow required to reach the reference pressure on exhaust side Reference pressure Parer determination Parer is defined by running the supply and exhaust fans at airflows specified below exhaust airflow is determined by the Ex Su ratio Parer for supply and exhaust are consequently different Make sure that the panels of the unit are well closed with filters in place Press Start to start initialization of Paret optional if been made previously A confirmation is requested After 1 minute the control memorizes the calculated pressure values Parf once the requested airflow is reached While initializing exhaust and supply airflows and pressures are displayed Indicates the airflow rates and pressures that will be used to calculate the Pa alarm threshold airflows reference pressure increments c T assignment tab appears only if NV or KWout or SAT BA option is present Heating Cooling Working mode IS Address 1 Main Alarm Pa T Setpoint Supply air temperature setpoint Heati

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