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MI Regulation TAC4 DG + RC GB

1. configuration and visualization via webpages e MODBUS RTU communication configuration and visualization via a centralized technical management system SAT TAC4 ETHERNET Option communication with MODBUS TCP IP protocol on Ethernet over twisted pair 10 BASE T network Installation and users manual TAC4 DG RC SAT TAC4 WIFI Option communication with MODBUS TCP IP protocol on wireless WIFI network SAT TAC4 KNX Option KNX Communication See separate installation manual for each of these options P LEMMENS A Swegon Group company 2 GENERAL MAINTENANCE INSTRUCTIONS 2 1 General information 2 1 1 General schematic of the HR units HRflat Main switch for power supply fans and control Main switch for power supply to pre KWin and or post KWout heating coils options Centralized wiring box of the CB4 TAC4 DG circuit factory pre wired Supply fan s exhaust on HRflat 450 Exhaust fan s supply on HRflat 450 Post heating water or electrical coil NV or KWout option Motorized damper at fresh air inlet CT option F7 class filter at fresh air inlet HRflat G4 class filter exhaust air inlet on HRflat 450 9 Pre heating electrical antifreeze coil KWin option 10 Drain pan and drain HRflat drain pipe out 11 Air Air heat exchanger modulating By pass 100 12 G4 filter on exhaust air supply air inlet on HRflat 450 13 Motorized damper at exhaust air inlet option 14 RC
2. BSS EZEHEZ G O0 O ojojojojo ol ol ol o ol o oojo o o o K1 K2 K3 12V 12V INT IN2 IN3 IN4 INS IN6 INT IN8 IN9 12V GND T 5 GNDOUT1 OUT2 0 10 Vdc 20 A Swegon Group company P LEMMENS b Wiring to several circuits in parallel Ki K K3 12 12V INT IN2 IN3 IN4 INS INS INT INS IN9 12V GND T S 12V IN IN4 IN5 INS INT INS INS 12V GND T5 GNDOUTI OUT2 oo M K2 gt 0 10V signal maximum impedance allowed 1500 Q 3 3 4 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 K3 onthe TAC4 DG circuit can be used to activate the multiplier on K on the airflow assignment a Wiring to 1 circuit _ BSS BS BS Beli olololo o olololololololololo K2 K3 12V 12V INT IN2 IN3 IN4 INS IN6 INT IN8 IN9 12V GND T 5 GNDOUT1 OUT2 b Wiring to several circuits in parallel K K3 12V EEEEEEEREEE K1 closed gt soft start K1 open 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 21 Installation and users manual TAC4 DG RC 3 4 Time slots schedules 3 4 1 Definition The TAC4 DG regulation allows to configure 4 time slots TS and to set OFF days For each time slot select In CA mode which airflow
3. alarm is configurable through the advanced setup and is disabled by default After fixing the failure press RESET with SETUP of the RC TAC4 or press RESET on the TAC4 DG circuit See 16 in table below Type 17 Alarm indicating hydraulic coils anti frosting alert only with hydraulic post heating inside the unit NV or outside the unit BA This alarm indicates that the anti frost protection temperature of the hydraulic coil is lower than 4 C configurable through advanced setup it is important to reduce this value for BAin coil if an antifreeze is present in the fluid The 3 ways valve is automatically commanded to be opened at 100 during 15 minutes and the pump contact is commanded closed contact SAT3 O R 3 if internal NV or WP WP contact on SAT BA KW if external BA coil If the fans turn the alarm is sent after 2 minutes for BAin coil and immediately for the others if the fans are stopped the alarm is sent after 5 minutes After fixing the failure press RESET with SETUP of the RC TAC4 or press RESET on the TAC4 DG circuit See 17 in table below Type 18 Alarm indicating a faulty position of the modulating by pass relative to the commanded position This alarm indicates that the modulating by pass has not reached the commanded position within 10 seconds After fixing the failure press RESET with SETUP of the RC TAC4 or press RESET on the TAC4 DG circuit See 18 in table below 29 Installation and users manua
4. m um mm mm mm m ms DIDI oa AE IE RE JE 1 OC 12V IN1 IN2 IN3 IN4 IN5 IN6 INT INS INQ 12V Contact closed post heating OFF Contact open post heating ON 40 d Swegon Group company 3 12 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 One post heating water coil One post cooling water coil One post heating post cooling coil reversible coil One post heating coil one post cooling coil separate One electrical coil One electrical coil one post cooling water coil One pre heating water coil One pre heating water coil and one post heating water coil One pre heating water coil and one post heating post cooling coil reversible coil SAT 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 anti frost 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 Control features of the TAC4 DG e Assignment failure see 3 5 1 and 3
5. 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 re established Display text LED LED Pa LED AL1 Relay R2 Relay LED AF ALARM ALARM on SAT3 O R 1 AF T RED i ON ON Assignment ALARM reduction REDUCED AIRFLOW b If T lt 5 C during 5 minutes the unit is stopped Display text LED LED Pa LED AL1 Relay R2 Relay LED AF ALARM ALARM on SAT3 O R 1 AF T RED ON Alarm Blink Stopped ALARM status STOP FANS Restart is made by resetting by pressing the RESET knob on TAC4 DG circuit or via the RC TAC4 3 9 4 Anti frost protection with 1 external hydraulic pre heating coil BAin option If a hydraulic pre heating coil is installed in the fresh incoming air duct before the unit the heat exchanger is protected from frosting by modulating the opening of the 3 ways valve of the hydraulic BAin coil in order to maintain a pre set temperature at the outlet of the heat exchanger in the exhaust airflow T3 sensor The default assignment T after heat exchange is 1 C If necessary this value can be changed using the advanced setup feature see www lemmens com The BAin option requires the SAT BA KW additional board see 3 12 TAC4 DG regulation anti frost functions e 3 9 4 1 If conditions make that the pre heating coil BAin does not deliver enough
6. 3 3 4 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 RC TAC4 allows to configure and to visualize all the parameters on the display and with the LEDs 2 Or RC TAC4 is master contact between terminals IN1 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 RC TAC4 The RC TAC4 allows to configure and to visualize all the parameters on the display and with the LEDs The RC TAC4 controls the fans with the OFF 1 Il Ill keys 10 SD A Swegon Group company TAC4 DG circuit is master RC TACA is master CB4 TAC4 DG me CB4 TAC4 DG RC TAC4 Control Visualization Control Visualization Wiring diagram 12V INT IN2 IN3 IN4 INS INS IN IN8 INS 12V MASTER SELECTION Contact closed TAC4 DG circuit master Contact open RC TAC4 master Caution Use gold plated contact only The use of this contact enables to switch automatically from RC TAC4 master to TAC4 DG master Using this you can for instance e Work in RC TAC4 master and switch in position TAC4 DG master to stop automatically the fans attention in this case
7. 5 2 Sensor failure alarm see 3 5 1 and 3 5 2 e Possibility through the advanced setup to get an alarm if the supply temperature T5 sensor is lower than 5 C see 3 5 1 and 3 5 2 for details For connections configuration and user instructions see installation manual MI SAT TAC4 BA KW 3 13 Display on the RC TAC4 a Standard display By default only airflow and fan pressure values as well as alarm status are displayed on the LCD For complete details of the display see the technical documentation on the website www lemmens com b Display all the parameters Press on the left knob on the diagram so that the SETUP LED lights By pressing and it is possible to display the status of all the working parameters HRg type and built in options CT pre post heating working mode and set values airflow pressure of each fan pressure alarm setup CA LS working mode only alarm status status of K1 K2 K3 IN1 IN2 IN3 IN4 IN5 IN6 IN7 IN8 IN9 inputs Position of the bypass status of the anti freeze protection T values of sensors 1 2 3 4 5 7 8 4 7 and 8 options status of the CT option For complete details of the display see the technical documentation on the website www lemmens com 41 Installation and users manual TAC4 DG RC 3 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
8. 5 2 Sensor alarms see details in section 83 5 1 and 3 5 2 Possibility through the advanced setup to get an alarm ifthe supply temperature T5 sensor is lower than 5 C see 83 5 1 and 3 5 2 for details 3 10 1 Wiring diagrams e Wiring the supply T sensor to the TAC4 DG board ASS SSS m m am m m u m mm olololo alalalalatatataloialol piel olnle K2 K3 12V 12V INT IN2 IN3 IN4 INS IN6 IN7 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 EHEJEJEHEJEJEH EH EJ EF DIDI JOSIDR ID ID II EI 2 12V IN1 IN2 IN3 IN4 IN5 IN6 INT INS INQ 12V Contact closed post heating OFF Contact open post heating ON 3 11 Post heating regulation HRglobal and HRup NV option The post heating coil is delivered pre wired The 3way valve is delivered un mounted The NV option on the TAC4 DG regulation allows maintaining a pre set supply T constant The assignment T is set using the configuration menu see 3 3 2 1 3 3 3 1 or 3 3 4 1 according to the selected working mode SUPPLY If a post heating water coil NV option is present in the unit type in supply air xx C NV assignment T 38 d Swegon Group company Control features of the TAC4 DG Monitoring the 3 way valve to keep assignment T constant using supplied sensor T value Engaging a relay to start a water circulator output SAT 3 O R 3 on i o mod
9. TAC4 o NOOA D All electrical connections made the installer are in 1 2 3 Installation and users manual TAC4 DG RC schematic of the T sensors positioning in the HRg unit To allow easier identification of the temperature sensors 4 different wire colours are used 71 black wire 72 white wire 73 blue wire T4 amp T5 green wire 2 1 2 Label located inside the cover of the control panel 3 cid 120136 BYPASS output to bypass actuator prewired er AAA CT output to CT actuator s option prewired KWout output for KWout power regulation option prewired KWin output for KWin power regulation option prewired OUT gt IN S1 from outdoors T sensor prewired S2 from indoors T sensor prewired S3 to outdoors T sensor prewired S4 NV anti freeze portection T sensor option prewired S5 supply T sensor for NV KWout regulation option prewired 12V KWou KWn GND VI GND T 4 T 3 GND T 2 T 1 GND EEEE gt AL1 DEFAULT ALARM B A GND 12V connection to the RC TAC4 BYPASS K1 CA MODE m h K1 LS CPs MODE START STOP K2 CA MODE m h K2 LS CPs MODE 0 10V INPUT K3 CA MODE m h K3 LS CPs MODE ON K3 SAT MODBUS SAT BA KW INT Master selection IN2 dPa external pressostat digital input IN3 Fire alarm IN4 Bypass IN5 Real time clock auto manu IN6 ON OFF post heating NV KWout IN7 ON OFF SUPPLY if fire al
10. 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 on the fact that the fan is actually running closed loop principle 3 14 1 Wiring diagram gt gt a a EH R HER ojo aja FAN OFF FAN OH 42 ky PLEMMENS 3 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 HRglobal ES HRg 800 HRg 1200 HRg2000 HRg3000 HRg4000 HRg5000 HRg 6000 Pressure Pa SSS ES EZ eee ee ee eee Eee 675 780 1090 1060 1090 1140 1075 Airflow m3 h 0 0 0 0 0 0 0 10 V 960 1440 2400 3600 2400 3000 3600 Airflow per fan Airflow x 2 to obtain actual total airflow HRup EE HRup450 HRup800 HRup 1200 HRup 2000 Pressure Pa Pr HRflat 450 HRflat 600 HRflat 1000 HRflat 1600 HRflat 2000 Pressure Pa OV 10 V Airflow m3 h Via the advanced setup it is possible to connect any of these 2 OUT signals to the airflow
11. coil or external hydraulic coil BAin has reached its limit the TAC4 DG control can take over to guarantee the anti frost 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 Press RESET with SETUP of the RC TAC4 or press RESET on the TAC4 DG circuit to restart the unit With modulating by pass is in anti frosting protection A FREEZE or AF FREECOOL in the advanced setup see 3 9 2 Alarme type 14 this alarm indicates that the extracted air temperature at the exchanger output T3 sensor has not exceeded 1 C during 15 minutes after that the by pass has been opened at 100 Press RESET with SETUP of the RC TAC4 or press RESET on the TAC4 DG circuit to restart the unit See 13 amp 14 in table below Type 15 Alarm indicating that the supply T is too high relative to set point T only with post cooling option This alarm indicates that the supply T set point cannot be reached actual T higher than set point during 15 minutes while post cooling is at maximum See 15 in table below Type 16 Alarm indicating that the supply T is too low in absolute only with post heating or cooling option This alarm indicates that the supply temperature T5 is lower than 5 C The fans are stopped during 1 minute The
12. or pressure value of any fans see www lemmens com website for more details Wiring diagram of outputs signals O10 GND OUT1 OUT2 GND OUT1 OUT2 Airflow pressure signal Airflow pressure signal 0 10V 0 m h max 0 10V 0 m h 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 43 Installation and users manual TAC4 DG RC 3 16 Advanced setup The advanced configuration allows modifying the parameters not present in the basic configuration Warning using this feature requires a good knowledge of the TAC4 DG control system 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 If post heating or post cooling possibility to get an alarm if the supply temperature T5 sensor is lower than 5 C OUT1 and OUT2 definition In mode LS Stop of the fans if Vin lt and or gt set value s Possibility to drive separately exhaust and supply airflows Supply airflow rate via a 0 10V signal connected to K2 and exhaust airflow rate via another 0 10V signal connected to K3 The link airflow rate signal value must be the same In mode CPs p
13. pressure assignment defined in the basic setup Select 000 to stop both supply and exhaust fans Enter TS2 starting time If empty time slot is inactive For TS2 enter coefficient applied to the supply pressure assignment defined in the basic setup Select 000 to stop both supply and exhaust fans For TS2 enter coefficient applied to the exhaust pressure assignment defined in the basic setup Select 000 to stop both supply and exhaust fans Enter TS3 starting time If empty time slot is inactive For TS3 enter coefficient applied to the supply pressure assignment defined in the basic setup Select 000 to stop both supply and exhaust fans For TS3 enter coefficient applied to the exhaust pressure assignment defined in the basic setup Select 000 to stop both supply and exhaust fans Enter TS4 starting time If empty time slot is inactive For TS4 enter coefficient applied to the supply pressure assignment defined in the basic setup Select 000 to stop both supply and exhaust fans For TS4 enter coefficient applied to the exhaust pressure assignment defined in the basic setup Select 000 to stop both supply and exhaust fans 24 A P LEMMENS A Swegon Group company 18 MONDAY If DAY OFF option activated for MONDAYs select AUTO normal time slots setup is AUTO active or OFF no ventilation on Monday ee If DAY OFF option activated for WEDNESDAYs select AUTO normal
14. the supply and the exhaust REF airflows Y or N this is optional if it has been done previously 19 mh INIT If Y is selected enter nominal airflow at which you wish to initialize the reference pressure same airflow for exhaust and supply air 20 Pa REF Initializing the reference pressure INIT After 1 minute the system will memorize the calculated pressure value of the fan as the reference pressure While initializing the airflow and pressure on F1 is displayed Xxxx mh xxxx Pa 21 ALARM Possibility to reset of the alarms Y or N RESET 22 END SETUP End 16 A Swegon Group company P LEMMENS 3 3 3 2 Operating LS mode with RC TAC4 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 EXH SUP 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 fan is carried out with knobs I III and OFF e The pressure sensor is connected to entry K2 of the TAC4 DG circuit e By pressing knob III of the RC you activate the pre set multiplier on K3 a Wiring to 1 circuit Fr Fre Be E o 6 6l0o ololololololololololo locolo ololo K1 K2 K3 12V 12V INT IN2 IN3 IN4 INS IN6 IN7 IN8 IN9 12V GND T 5 GNDOUT1 OUT2 b Wiring to several circui
15. time slots Y setup is active or OFF no ventilation on Monday AUTO aa If DAY OFF option activated for FRIDAYs select AUTO normal time slots setup is AUTO active or OFF no ventilation on Monday ROBA If DAY OFF option activated for SUNDAYs select AUTO normal time slots setup is AUTO active or OFF no ventilation on Monday 25 Installation and users manual TAC4 DG RC 3 4 3 Switching from MANU to AUTO mode scheduler 3 4 3 1 Via RC TAC4 master Push 4 seconds on the left push button to switch to another mode 3 4 3 2 Via TAC4 DT master O10101010101010101010 INS open MANUAL mode active 12V INT IN2 IN3 IN4 INS IN6 INT INS INQ 12V IN5 closed AUTOMATIC mode active Jr 26 d Swegon Group company 3 5 Alarms 3 5 1 Alarm types Type 1 Alarm indicating a fan failure This alarm indicates a failure of fan Fx This problem is usually caused by the motor If not the failure can be caused by an internal cable or by the TAC4 DG circuit See 1 in table 3 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 3 3 2 1 and 3 3 3 1 PRESSURE The pressure alarm is optional If you do not wish it select N and skip to step 16 ALARM Otherwise select Y AP SUP Type in the pressure increment for the supply airflow AP EXH Type in the pres
16. 0bis A drain pump alarm This alarm is activated if the condensate water level is higher than a set value around 1 5 cm When activated the supply and exhaust fans are stopped The drain pump alarm is automatically reset when the water level in the drain pan is lower than the set point and the fans restart automatically See 10bis in table below Type 11 Alarm indicating failure on T sensor T5 only with post heating or post cooling option 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 or post cooling function After fixing the failure press RESET with SETUP of the RC TAC4 or press RESET on the TAC4 DG circuit See 11 in table below Type 12 Alarm indicating that the supply T is too low relative to set point T only with post heating option 28 d Swegon Group company This alarm indicates that the supply T set point cannot be reached actual T lower than set point during 15 minutes while post heating is at maximum See 12 in table below Type 13 and 14 Alarm indicating anti frosting alert only with KWin or BAin or if modality of modulating by pass in anti frosting protection With KWin or BAin option In certain air T conditions as measured on the exhaust airflow after the heat recovery indicating that the internal electrical KWin
17. A GCG Fa Lt IVI IVI EC IN SD A Swegon Group company 3 5 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 FAN OFF or POWER OFF 3 5 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 3 5 4 1 Configuration The supply exhaust airflow configuration is made using the advanced setup See the www lemmens com website 31 Installation and users manual TAC4 DG RC Wiring diagram of fire alarm HEJ mm m mm mm um mm mm mm mm ojojoj ojo o ojo o o 6 12V INT IN2 IN3 IN4 INS IN6 IN7 IN8 IN9 12V If IN3 12V closed fire alarm activated this logic can be reversed via advanced setup menu Default if IN3 12 V closed and e IN7 12V closed force start the supply fan s at pre programmed airflow 1 e N7 12V open force stop the supply fan s e N8 12V closed force start the exhaust fan s at pre programmed airflow 1 e N8 12V open force stop the exhaust fan s 1 At preset airflow in the advanced setup menu 3 6 BOOST function The BOOST function allows forci
18. ALWAYS ONE STEP AHEAD TAC4 DG RC AA LEMMENS A Swegon Group company ALWAYS ONE STEP AHEAD TAC4 DG RC Installation and user s manual 42 ur ww sr EF LET 444444446 P Lemmens Co eal 414117417 SEDTTZEP j TFTEFTE m primanis CIM TACA HRO Hip CID 025000 S H 1 0 ETE 1271807 im 11145110 Kassa ius iain BT a NYM WE re gee Swegon Group company AA LEMMENS A Swegon Group company TABLE OF CONTENTS 1 2 FUNCTIONALITIES OF THE REGULATION uzuusuuaunaunannannannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 5 GENERAL MAINTENANCE INSTRUCTIONS 2 2csecsssssssscessessesssssessessessessessessacsassasessessessensnsassassasenses 7 2 1 GENEIALINIOENANON aan O ac AE Edo opat ee en Tee etcetera 7 2 1 1 General schematic of the HR units 7 2 1 2 Label located inside the cover of the control panel 3 8 REGULATION CONFIGURATION WIRING OPERATING nine 9 3 1 Connecting the RC TAC4 to the CB4 TAC4 DGccircuit s sesoonaaneeooaaaanneeooaaaannewacanann 9 9 1 1 Open Wie RO TACA CS IA da OE 9 3 1 2 Wiring diagram to connect the RC TAC4 REC to the TAC4 DG circult 10 32 SEIECUIGANE Master cu anna una a heen anna anna Semences tee 10 Se FA CONMEOL anne een e nee Ea wysko ci dz cyca acer ERS een 12 D WOMKNO MOQO eee eee ee 12 3 3 2 CA Mode setup operating instructions and
19. H SUP Type in ratio between exhaust EXH and supply SUP airflow to create over under or even pressure 9 TIME Select Y to activate the time segment scheduling function SEGMENT N 10 CONFIG TIME N Select Y to activate time segment function 11 For more details see 3 4 12 INIT CPS REF N New initialization of the CPs constant pressure assignment Select Y to activate resetting of the pressure assignment 13 INIT via If Y is selected in 7 then select if you want to initialize the CPs reference AIRFLOW automatically via the airflow or manually via the pressure value If INIT CPs via AIRFLOW default the HRg unit automatically determines the reference pressure 14 ue Enter nominal airflow to determine assignment pressure CPs if SUPPLY or SUP EXH was selected at step 5 15 es Enter nominal airflow to determine the pressure assignment CPs on the 0000 m h exhaust airflow if EXHAUST or SUP EXH was selected at step 5 16 INIT SUP Initializing of CPs busy if SUPPLY or SUP EXH was selected at step 5 xx x V After 1 minute the system will memorize the pressure measured by the sensor INIT SUP XXXX m3 corresponding to the nominal airflow Display of the actual airflow of the supply fan and of the actual sensor value 19 Installation and users manual TAC4 DG RC 18 ALARM Possibility to reset the alarms Y or N RESET 19 The configuration of the system is finished If INIT via PRESSURE enter pressure assignment valu
20. OL Only available with setup of modulating bypass in modality FREECOOL or T xx C AF FREECOOL See 3 7 for details 5 WORKING Select CA from CA LS CPs MODE 6 meh K1 Type in supply airflow 1 will be activated if contact between K1 and 12V of TAC4 DG circuit closed or if position Ion RC TAC4 is selected 7 mh K2 Type in supply airflow 2 will be activated if contact between K1 and 12V of TAC4 DG circuit closed or if position Il on RC TAC4 is selected 8 meh K3 Type in supply airflow 3 will be activated if contact between K1 and 12V of TAC4 DG circuit closed or if position Ill on RC TAC4 is selected 9 EXH SUP Type in ratio between exhaust EXH and supply SUP airflow to create over under or even pressure 10 TIME Select Y to activate the time segment scheduling function SEGMENT N 11 CONFIG Select Y to activate time segment function TIME N 12 gt For more details see 3 4 13 PRESSURE The pressure alarm is optional If you do not wish it select N and skip to step 14 ALARM Otherwise select Y For more details see 3 5 14 AP SUP Type in the pressure increment for the supply airflow 15 AP EXH Type in the pressure increment for the exhaust airflow 16 INIT Pa Do you wish to re configure the reference pressure for the supply and the exhaust REF airflows Y or N this is optional if it has been done previously WA mh INIT If Y is selected enter nominal airflow at which you wish to initialize the refer
21. arm IN8 ON OFF EXHAUST if fire alarm IN9 BOOST SAT MODBUS Rx Tx RELAY WP WP GND OUT OUT8 OUTS 12V INO INft OUT1 0 10V OUTPUT airflow pressure SAT BA KW D OUT2 0 10V OUTPUT airflow pressure O R 1 output relay 1 SAT3 PRESSURE ALARM O R 2 output relay 2 SAT3 FAN ON olo O R 3 output relay 3 SAT3 WATER PUMP for NV option O R 4 output relay 4 SAT3 BYPASS STATUS OO A GND 12V K1 K2 K3 12V 12V INT IN2 IN3 IN4 INS ING INT INS IN9 12V GND T 5 GND OUT1 OUT2 GND OUT4 OUT5 Nv vo SAT MODBUS option see installation manual SAT BA KW option see installation manual K1 K2 K3 Connexion to the RC TAC4 JE KI C K LEMMENS A Swegon Group company 3 REGULATION CONFIGURATION WIRING OPERATING The regulation is delivered fully factory pre wired Nevertheless the TAC4 RC remote control and the I O signals if any must still be wired by the installer 3 1 Connecting the RC TAC4 to the CB4 TAC4 DG circuit The connection between the various circuits is made by a communication bus Follow these steps to connect the RC TAC4 to the CB4 TAC4 DG 3 1 1 Open the RC TAC4 casing Using a small screwdriver unlock the 4 pins 2 pins on each side Remove the cover Points for fixation of the casing spacing 88mm RC dimensions 122 x 66mm nn RC TAC4 wiring terminals Installation and users manual TAC4 DG RC Caution e The RC box is clas
22. asured 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 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 RC TAC4 But then to restart the fans it is required to choose one of the other 3 working modes 12 d Swegon Group company 3 3 2 CA Mode setup operating instructions and wiring diagrams 3 3 2 1 Setup CA mode The setup is made by means of the LCD screen and the 4 knobs SETUP f and ENTER of the RC To start the setup RER Enter in the setup mode using the left knob on the diagram so that the SETUP LED senie lights Press then the SETUP knob until the text SETUP appears on the screen The idea is to select your choice with the 1 knobs and then to confirm your choice by pressing ENTER The numbers are introduced digit by digit 1 LANGUAGE Choose your language English French Dutch German 2 HEATING Only available with post heating exchanger s Select the supply T to the heating T xx C exchanger which is connected to the SAT BA KW 3 COOLING Only available with post cooling exchanger s Select the supply T to the cooling T xx C exchanger which is connected to the SAT BA KW 4 FREECO
23. ating coil KWin option If a KWin pre heating coil is option is installed in the HRg or HRup 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 see www lemmens com TAC4 DG regulation anti frost functions e 3 9 3 1 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 e 3 9 3 2 The control only allows the heating coil to be operated if the supply fans are in working This wiring is factory made e 3 9 3 3 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 electrical coils e 3 9 3 4 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 and T lt floor T 1 5 C for more than 5 minutes 36 d N A Swegon Group company If CA and LS mode
24. ating exchanger s Select the supply T to the heating T xx C exchanger which is connected to the SAT BA KW 3 COOLING Only available with post cooling exchanger s Select the supply T to the cooling T xx C exchanger which is connected to the SAT BA KW 4 AE CL Only available with setup of modulating bypass in modality FREECOOL or T xx C AF FREECOOL See 83 7 for details 9 WORKING Select LS from CA LS CPs MODE 6 V min Select minimum voltage value i V max Select maximum voltage value 8 m h Vmin Select constant airflow value for minimum voltage Vmin 9 m h Vmax Select constant airflow value for maximum voltage Vmax 10 on K3 Select constant airflow multiplier when contact between terminals 12V and K3 in the TAC4 DG is closed or if position III is activated on the RC TAC4 11 EXH SUP Type in ratio between exhaust EXH and supply SUP airflow to create over under or even pressure 12 TIME Select Y to activate the time segment scheduling function SEGMENT N IK CONFIG Select Y to activate time segment function TIME N 14 ei For more details see 3 4 15 PRESSURE The pressure alarm is optional If you do not wish it select N and skip to step 16 ALARM Otherwise select Y For more details see 83 5 16 AP SUP Type in the pressure increment for the supply airflow 17 AP EXH Type in the pressure increment for the exhaust airflow 18 INIT Pa Do you wish to re configure the reference pressure for
25. ation and users manual TAC4 DG RC By pass status by pass by pass closed partially or completely open 3 8 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 start up is delayed to allow prior opening of dampers When fans are stopped the dampers are closed 3 9 Heat exchanger anti frost protection system There is a risk of frosting the heat exchanger in the exhaust airflow Four anii frost protection systems are available e Supply air volume reduction less cooling capacity e Regulation of the by pass opening e Modulation of capacity of an internal electrical coil located before the inlet air enters the heat exchanger KWin option e Modulation of capacity of an external hydraulic coil located before the inlet air enters the heat exchanger BAin option 3 9 1 Anti frost protection 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 the modulating by pass working mode is setup in anti frost protection A FREEZE or AF FREECOOL in the advanced setup see 3 9 2 or if an optional KWin pre heater see 3 9 3 is installed in the unit or even if an external hydraulic pre heat coil BAin is installed see 3 9 4 Description I
26. by selecting m h K1 m3h K2 mh K3 OFF stop In LS mode the link LS percentage of the nominal link and the rate of the exhaust airflow by the supply airflow In mode CPs the pressure setpoint percentage of the nominal setpoint and the rate of the exhaust airflow by the supply airflow And for each day of the week select AUTO OFF operate as a normal day or as an OFF day 3 4 2 Configuration 1 CONFIG Select Y to configure time and date Fi TIME N 3 SET DATE Enter date XX XX XX 4 TIME Select Y to activate time segment function SEGMENT N SUPPLY For TS1 enter supply airflow 0000 fan stop 0000 mh 7 EXHAUST For TS1 enter exhaust airflow 0000 fan stop ou 0000 m h 9 SUPPLY For TS2 enter supply airflow 0000 fan stop 0000 m h 10 EXHAUST For TS2 enter exhaust airflow 0000 fan stop DE 0000 m h 12 SUPPLY For TS3 enter supply airflow 0000 fan stop 0000 m h 13 EXHAUST For TS3 enter exhaust airflow 0000 fan stop w 0000 m h 15 SUPPLY For TS4 enter supply airflow 0000 fan stop 0000 m h 16 EXHAUST For TS4 enter exhaust airflow 0000 fan stop 0000 m h 22 P LEMMENS A Swegon Group company 6 SET VAL For TS1 enter coefficient applied to the base link configured between V value LS 000 and airflow value cfr m3 h Vmin and m h Vmax in setup Select 000 to stop both supply and exhaust fans 7 EXH SUP For TS1 select airflow ratio between exhau
27. capacity to reach the floor T assignment and therefore not insuring the anti frost duty the control will modulate the in and out airflows see 83 9 3 4 For connections configuration and user instructions see installation manual MI SAT TAC4 BA KW 3 10 KWout post heating electrical coil control HRglobal and HRup 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 according to selected working mode see 3 3 2 1 3 3 3 1 or 3 3 4 1 SUPPLY If a post heating coil is present option type in set point T for supply air xx C KWout Features provided by the TAC4 DG regulation Regulation of static relay of the electric coil in function of assigned supply T and actual measured supply T To avoid overheating regulation checks if fans are operating before supplying electric coil This is factory pre wired 37 Installation and users manual TAC4 DG RC A post 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 3 10 1 Set point alarm see details in section 83 5 1 and 3
28. e o EXH REF Enter the pressure assignment value for the exhaust if EXHAUST or XX X V SUP EXH was selected at step 5 15 17 END SETUP The configuration of the system is finished CPs on SUPPLY air The airflow delivered by the supply fans is automatically modulated to obtain a constant pressure as measured by the pressure sensor in the duct The exhaust airflow is equals to EXH SUP of the supply airflow 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 EXH SUP 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 3 3 4 2 Operating CPs mode with RC TAC4 master e The start stop of the fans is controlled by knob I and OFF e The pressure sensor is connected to entry K2 of the TAC4 DG circuit If CPs on SUPPLY EXHAUST is selected connect the supply airs pressure sensor on terminals K2 and GND and the exhaust airs pressure sensor on terminals K3 et GND e The III Knob on the RC allows activating the airflow multiplier on K3 on the airflow assignment a Wiring to 1 circuit
29. e by pass is closed or controlled by the freecooling feature e For T3 sensor temperature lower than or equal to 1 C the opening of the by pass will be modulated in order to reduce the supply air flow inside in the exchanger increasing so T3 above 1 C The opening of the by pass will change in order to reach and keep this temperature As a consequence the supply temperature will decrease The following tables show for HRGlobal units the temperature of the exhaust airflow after the heat exchanger T3 sensor and the supply temperature T5 sensor according to the distribution of the supply airflow between the heat exchanger and the by pass this distribution is itself linked to the percentage of opening of the modulating by pass Conditions under which the data are taken Outside air 90 HR Relative humidity inside air 20 C and 50 HR 35 Installation and users manual TAC4 DG RC KOM EZM KEZM EZM EHE OW EZM RES ESS RO 5 5 2 166 19 1 0 5 5 2 167 19 0 HRglobal 1200 HRglobal 5000 T1 C T3 C T5 C RHS airflow in bypass T1 C T3 C T5 C RHS airflow in bypass 5 52 0 5 5 1 0 16 8 19 HRglobal 2000 HRglobal 6000 T1 C T3 C T5 C RHS airflow in bypass T1 C T3 C T5 C RHS airflow in bypass 5 5 5 Se 16 7 19 0 16 9 18 8 0 KE EZM Ee eee OR 5 5 2 167 19 0 3 9 3 Anti frost protection with 1 internal electrical pre he
30. ement of the 100 modulating bypass freecooling function and or Heat exchanger antifreeze protection Automatic management of inlet dampers CT Heat exchanger antifreeze protection system by modulation of airflow or by modulation of the opening of the modulating bypass or with an intelligent internal pre heat electrical coil KWin or even by regulating the power of an external hydraulic pre heat coil BAin Post heating management of water coil NV or electrical coil KWout to keep a set temperature constant Display of the settings and working fans Analogical output signals of airflow and pressure Advanced setup The following options can be combined with TAC4 DG controller SATS Option Circuit with 2 relays for e Information about the Pressure alarm on O R 1 e Information about the FAN ON on O R 2 e Status of NV option circulator on O R 3 e Information about the status of the bypass on O R 4 SAT TAC4 BA KW Option Regulation of 2 external exchangers electrical water post hot and or post cold Regulation of an external hydraulic pre heat coil BAin option RC TAC4 Option Simple remote control with a LCD display 2x8 digits to configure control and visualize the unit parameters SAT TAC4 MODBUS Option Enables the following options e GRC colour touchscreen remote control more user friendly e TAC4 TCP IP module configuration and visualization via webpages e TAC4 GPRS module
31. ence pressure same airflow for exhaust and supply air 18 Pa REF INIT Initializing the reference pressure 6 After 1 minute the system will memorize the calculated pressure value of the fan as xxxx m2h the reference pressure While initializing the airflow and pressure on F1 is displayed xxxx Pa 19 ALARM Possibility to reset the alarms Y or N RESET 20 END SETUP End 13 Installation and users manual TAC4 DG RC 3 3 2 2 Operating CA mode with RC TAC4 master e One of the 3 assignment constant airflows mh K1 mh K2 and mh K3 is selected using the I II Ill Knobs of the RC TAC4 The selection made is highlighted by the corresponding LED on the RC The exhaust airflow is equal to EXH SUP of the supply airflow e The OFF touch allows stopping the fans 3 3 2 3 Operation CA mode with TAC4 DG master One of the 3 assignment constant airflows m3h K1 m h K2 and mh K3 is selected using the K1 K2 K3 terminals on TAC4 DG The selection made is highlighted by the corresponding LED on the RC TAC4 The exhaust airflow is equal to EXH SUP of the supply airflow Wiring diagrams a Wiring 1 circuit to 3 external contacts es CJEJEHEEFEHJEHEFEJEH EZ olol o o o0 olololololololololo K1 K2 K3 12V 12V INT IN2 IN3 IN4 IN5 IN6 IN7 INS INQ 12V K1 closed gt airflow m h K1 K2 closed gt airflow m h K2 K1 K2 K3 K3 closed airflow m h K3 K1 K2 K3 open gt soft stop Caution K1 K2 K3 Use gold plated contacts on
32. ill activate the freecooling 3 7 1 Operating description e The freecooling is enabled if all following conditions are met Outside T sensor T1 lt inside T sensor T2 1 Outside T sensor T1 gt 15 C Inside T sensor T2 gt 22 C e The freecooling is disabled if one of the following conditions is met Outside T sensor T1 gt inside T sensor T2 Outside T sensor T1 lt 14 C Inside T sensor T2 lt 20 C All these temperature SET values can be modified using ADVANCED SETUP see www lemmens com When the bypass is open the pressure alarm is deactivated For the HRg 4000 and HRg 6000 models the maximum airflow when the bypass is open is reduced respectively at 3500 m3 h and 5300 m h For the other models there is no reduction of the maximum airflow when the bypass is open 3 7 2 Additional function 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 ADVANCED SETUP see www lemmens com The complete opening of the bypass can be forced whatever the T with an external contact 3 7 3 Wiring diagram 12V INT IN2 IN3 IN4 INS IN6 IN INS IN9 12V Contact open automatic bypass operation in function of T1 T2 and setup values Contact closed bypass is completely open whatever T1 and T2 values 33 Install
33. l TAC4 DG RC 3 5 2 Alarm table Actions on RC TAC4 Actions on the TACA4 DG circuit on on on Type Display 1 LED LED Pa LED R2 relay LEDAF ALARM ALARM Es of SAT3 O R 1 ALARM Alarm Stopped FANX status 2 PRESSURE Red ON Closed ALARM 2 3 ALARM Red ON Alarm Stopped INIT Pa status 4 ALARM ON CA LS or CP 5 DATA Red ON Alarm Stopped ERROR status 6 FIRE Red ON Alarm 3 ALARM status 7 ALARM Red ON Alarm SERVICE status FAN STOP Red ON Alarm Stopped SERVICE status 8 CB COM Red Alarm N ERROR status 9 ALARM T Red ON Alarm Stopped SENSOR status 1 2 3 10 ALARM T Red ON Alarm N SENSOR 4 status 10bis DRAIN Red ON Alarm Stopped ALARM status 11 ALARM T Red ON Alarm i SENSOR 5 status 12 ALARM Red ON POSTHEAT T TOO LOW 13 AF T Red ON ON Reduced ALARM AIRFLOW REDUCED 14 AF T Red ON Alarm Blinking Stopped ALARM status STOP FANS 15 ALARM Red ON POSTCOOL T TOO HIGH 16 AFREC ON Red ON Alarm Stopped STOP FANS status 17 AF NV BA Red ON Alarm Stopped STOP FANS status 18 BYPASS Red ON Alarm Stopped STOP FANS status no action 1 Detailed text is displayed in successive screens Detailed texts available on www lemmens com 2 Unless the status has been changed in advanced setup to stop the fans 3 See details in 83 5 4 30 N ARAL
34. ly b Wiring 1 circuit to 1 COM4 PLC 4 positions switch HEJ HEH EHEJEJEHEJEJEHEJEHEJ EH o o jol o olojo o o o ol ol ololo K1 K2 K3 12V 12V INT IN2 IN3 IN4 INS IN6 INT IN8 IN9 12V L K1 K2 K3 12V 14 A P LEMMENS A Swegon Group company c Wiring several circuits to 3 external contacts Ki KR R 12V INS IN6 2V GND T S GNDOUTI OUT2 GND TS GNDOUTi OUT2 12V INT IN2 IN3 IN4 IN IN8 INS 1 K1 closed airflow m h K1 K2 closed airflow m h K2 K3 closed gt airflow m h K3 K1 K2 K3 open gt soft stop Caution K1 K2 K3 Use gold plated contacts only d Wiring several circuits to 1 COM4 ee o eo Ki KR K3 12V 12V INT IN2 IN3 IN4 INS INS INT INS IND 12V GND T5 GNDOUTI OUT2 15 Installation and users manual TAC4 DG RC 3 3 3 LS Mode setup operating instructions and wiring diagrams 3 3 3 1 Setup LS mode The setup is made by means of the LCD screen and the 4 knobs SETUP T and ENTER of the RC To start the setup Enter in the setup mode using the left knob on the diagram so that the SETUP LED lights Press then the SETUP knob until the text SETUP appears on the screen The idea is to select your choice with the 7 knobs and then to confirm your choice by pressing ENTER The numbers are introduced digit by digit 1 LANGUAGE Choose your language English French Dutch German 2 HEATING Only available with post he
35. mpany A 3 3 4 CPs Mode setup operating instructions and wiring diagrams 3 3 4 1 Setup CPs mode The setup is made by means of the LCD screen and the 4 knobs SETUP T and ENTER of the RC To start the setup Enter in the setup mode using the left knob on the diagram so that the SETUP LED ignites Press then the SETUP knob until the text SETUP appears on the screen The idea is to select your choice with the 7 knobs and then to confirm your choice by pressing ENTER The numbers are introduced digit by digit 1 LANGUAGE Choose your language English French Dutch German 2 HEATING Only available with post heating exchanger s Select the supply T to the T xx C heating exchanger which is connected to the SAT BA 3 COOLING Only available with post cooling exchanger s Select the supply T to the T xx C cooling exchanger which is connected to the SAT BA a Reese Only available with setup of modulating bypass in modality FREECOOL or T xx C AF FREECOOL See 83 7 for details WORKING MODE Select CPs from CA LS CPs CPs on Select constant pressure on supply airflow select SUPPLY or on the SUPPLY exhaust airflow select EXHAUST or on both airflows select SUP EXH If SUP EXH is selected le setup jumps to step 8 7 on K3 Input of multiplier on the CPs assignment when contact between terminals 12V and K3 in the TAC4 DG circuit is closed or if knob Ill is activated on the RC TACA 8 EX
36. n 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 5 C the assigned airflow is as defined by SETUP e 1 C lt TXT3 lt 5 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 AFiow of the assigned airflow AF If CPs mode the assigned pressure will drop to 50 AFiow of the assigned pressure AF In these conditions LED AF is ON 34 d Swegon Group company e T T3 lt 1 C the supply airflow is stopped for as long as T T3 lt 2 C during 5 minutes In these conditions LED AF is blinking All these temperature SET values can be modified using ADVANCED SETUP for ADVANCED SETUP manual see www lemmens com Antifreeze diagram gt LED AF ON gt LED AF blinking 3 9 2 Anti frost protection via regulation of the by pass opening This feature is available if chosen working mode of the modulating by pass is configured in anti frost protection A FREEZE or AF FREECOOL in the advanced setup Description In order to avoid the risk of frosting the heat exchanger the modulating by pass opening is linked to the temperature value of the exhaust airflow measured after the heat exchanger T3 sensor e For T3 sensor temperature higher than 1 C th
37. nen 38 3 11 Post heating regulation HRglobal and HRup NV option uuauuu0onnnnnnnnnonnnnnnnnnnnnnnnnn 38 SE WINE OO QING ne se 39 d A Swegon Group company 3 12 Regulation for external coil s SAT TAC4 BA KW option NE 41 3 13 DISplay On ine HE ACH oasis ene ne ee eee eee eee 41 3 14 Fan Tallure Alarme ENER 42 SA MING ONAN UN aa aa aaa 42 3 15 Actual airflow pressure output signals uuu 02u00000200000nnnnnnonnnnnnonnnnnnnnnnnnnnnnnnnnnnnnnnnunnnnnnnnnnnnn 43 3 16 AOVANCEJSENID nee ee arena nennen eee En Fee Teen das seen eine ee 44 Appendix Installation control datasheet to be filled in after starting the installation 45 ri N A Swegon Group company 1 d Swegon Group company FUNCTIONALITIES OF THE REGULATION The TAC4 DG controller is mounted in the units of series HRglobal HRup and HRflat This handbook describes the functionalities of the TAC4 DG when using an RC TAC4 display The TAC4 DG with RC 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 4 timeslots Alarms on defects set points overpressure Fire alarm airflow management BOOST function allowing to force a pre set airflow supply exhaust overriding the assigned airflow Automatic manag
38. ng a preset airflow overruling all other configurations 3 6 1 Setup The configuration is made via the advanced setup Full details see the technical documentation on our website www lemmens com 3 6 2 Wiring diagram _ ES DIS TI ID IS IL I EI ore 12V INT IN2 IN3 IN4 INS IN6 IN7 INS IN9 12V Contact open BOOST inactive Contact closed BOOST active 3 7 FREECOOLING Function The freecooling is activated automatically when the inside temperature is too high and the outside temperature is cooler but warm enough The feature is obtained by deflecting from the heat exchanger a part of the supply air flow that will pass through the opening of the by pass In fact the heat exchange is fitted with a 100 by pass with controlled positioning The by pass is delivered completely wired and 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 partially or completely closing of the bypass 32 d Swegon Group company The by pass can work in all or nothing or in proportional mode modulating by pass modality modifiable in the advanced setup equal to FREECOOL by default or AF FREECOOL In proportional mode the supply freecooling temperature is configured in the setup and the opening of the by pass will vary to keep constant this temperature According to inside and outside temperatures the TAC4 DG control w
39. ntrol 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 27 Installation and users manual TAC4 DG RC Type 4 Alarm indicating the system cannot fulfil the assignment 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 of the data using the advanced setup 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 83 5 4 After a fire alarm it is necessary to perform a RESET via the SETUP of the RC TAC4 or the RESET button on the TAC4 DG circuit to return to normal operation Type 7 Alarm indicating maintenance is expected for configura
40. ositive or negative logical reaction speed of the CPs algorithm Post ventilation configuration Fan run time configuration Display alarms only MODBUS settings configuration address Ethernet IP settings configuration with SAT ETHERNET option Access code configuration Factory reset For complete details see the technical documentation on website www lemmens com 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 44 Appendix Installation control datasheet to be filled in after starting the installation To facilitate any future intervention specify in this table all settings specific to your installation Please keep this document handy before contacting us for any problem Without this could not be able to help you Configuration parameters 2 Working mode CA LS CPs Other 4 If LS mode Vmin Vmax meh Vmin meh Vmax on K3 6 EXH SUP 8 If KWin option T KWin C 10 If NV option T NV C Indicate here all changes made in the advanced setup if any Values read off display when HRg in operation ME FA SS 2 Supply pressure 1 Pa FE SSS 4 Supply pressure 2 HRg 4000 5000 6000 only Pa RODLNS 6 Exhaust pressure 1 Pa 7 _ Exhaust airflow 2 HRg 4000 5000 6000 only mA 8 Exhaust pressure 2 HRg 4000 5000 6000 only Pa 45 P LEMMENS COMPANY S A Parc Ind
41. s IP20 and cannot be installed outdoors as such If you wish to install it outdoors you need to fasten inside a proper watertight box e The configuration data is stored in the TAC4 DG circuit Therefore unlike the previous generation the RC does not have to be permanently connected for the regulation to operate properly 3 1 2 Wiring diagram to connect the RC TAC4 REC to the TAC4 DG circuit TAC4 DG RC TAC4 olololo ololololl I ar re SS 1 o o o o o o o o B B A GND 12V A GND 12V Cable specifications Recommended cable category 5 shielded twisted pair FTP cable with a section of 0 26 0 50 mm 2 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 If the unit is installed in a location with high electro mechanical interference levels we strongly advise to connect the armoured shield of the TAC4 DG RC cable on one side of the ground only e If the HRg unit is installed outside select a suitable cable for outdoor application UV light 3 2 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 cfr 3 3 2 to be the master means to control the start stop of the fans as well as to select the airflow f LS or CPs mode cfr 3 3 3 and
42. st fans F3 F4 and supply Fans F1 F2 airflows 100 9 SET VAL For TS2 enter coefficient applied to the base link configured between V value LS 000 and airflow value cfr m3 h Vmin and m h Vmax in setup Select 000 to stop both supply and exhaust fans 10 EXH SUP For TS2 select airflow ratio between exhaust fans F3 F4 and supply Fans F1 F2 airflows 100 12 SET VAL For TS3 enter coefficient applied to the base link configured between V value LS 000 and airflow value cfr m3 h Vmin and m h Vmax in setup Select 000 to stop both supply and exhaust fans 13 EXH SUP For TS3 select airflow ratio between exhaust fans F3 F4 and supply Fans F1 F2 irflows 100 airflows 15 SET VAL For TS4 enter coefficient applied to the base link configured between V value LS 000 and airflow value cfr m3 h Vmin and m h Vmax in setup Select 000 to stop both supply and exhaust fans 16 EXH SUP For TS4 select airflow ratio between exhaust fans F3 F4 and supply Fans F1 F2 re airflows o SET VAL For TS1 enter coefficient applied to the pressure assignment defined in the basic CPs 000 setup Select 000 to stop both supply and exhaust fans t7 EXH SUP For TS1 select airflow ratio between exhaust fans F3 F4 and supply Fans F1 F2 airflows 100 9 SET VAL For TS2 enter coefficient applied to the pressure assignment defined in the basic CPs 000 Setup Select 000 to stop both s
43. sure increment for the exhaust airflow INIT Pa Do you wish to re configure the reference pressure for the supply and the exhaust REF airflows Y or N this is optional if it has been done previously mh INIT If Y is selected enter nominal airflow at which you wish to initialize the reference pressure same airflow for exhaust and supply air Pa REF Initializing the reference pressure INIT After 1 minute the system will memorize the calculated pressure value of the fan as 6 the reference pressure While initializing the airflow and pressure on F1 is displayed Xxxx mh xxxx Pa See 2 in table below Type 3 Alarm indicating a problem while initializing reference pressure for a pressure alarm 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 Pare cannot be identified and the fans are stopped Press RESET using SETUP on the RC TAC4 or with the RESET key on the TAC4 DG circuit If it occurs during initializing an alarm pressure 2 options 1 No action is taken the co
44. the inputs K1 K2 K3 on the TAC4 DG have to be disconnected from the 12V e Work in RC 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 11 Installation and users manual TAC4 DG RC 3 3 Fan control 3 3 1 Working modes 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 EXH SUP for ratio between exhaust and supply airflows The RC 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 m8h 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 e CPs MODE CPs on supply the airflow of the supply fan s is modulated so as to maintain constant a certain pressure value me
45. tion 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 Alarm indicating a communication breakdown between the TAC4 DG circuit and the RC TAC4 This alarm indicates a communication problem between the 2 modules of the TAC4 DG regulation See 8 in table below 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 anti frost procedure After correction of the failure press RESET with SETUP of the RC TAC4 or press RESET on the TAC4 DG circuit 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 press RESET with SETUP of the RC TAC4 or press RESET on the TAC4 DG circuit See 10 in table below Type 1
46. ts connected in parallel K1 IN2 IN3 IN4 INS ING INT INS INS QUT1 OUT2 O0 K K3 12V 12V IN 12V GND TS GND Ki K2 K3 12V 12V INT IN2 IN3 IN4 INS INS INT INS IN9 12V GND T S GNDOUTI OUT2 LL K2 gt 0 10V signal maximum impedance allowed 1500 Q 17 Installation and users manual TAC4 DG RC 3 3 3 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 EXH SUP 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 Wiring diagrams a Wiring to 1 circuit ABS SS SSy Se Qs o o o ololololololololololo loolo ololo K2 K3 12V 12V INT IN2 IN3 IN4 INS IN6 IN7 IN8 IN9 12V GND T 5 GNDOUT1 OUT2 b Wiring to several circuits in parallel ER K1 closed gt soft start K1 open 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 18 A Swegon Group co
47. ule see 3 11 1 Anti frost 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 ways valve is opened and contact for circulator is closed during 15 minutes Once that the valve is completely open the temperature shall increase above 4 C within a 15 minutes delay otherwise the fans will stop and an alarm will be reported see 83 5 1 and 3 5 2 for details Possibility to stop the post heating with an external contact connected to terminal IN6 see 83 11 1 Assignment failure see 83 5 1 and 3 5 2 Sensor failure alarm see 83 5 1 and 3 5 2 Possibility through the advanced setup to get an alarm if the supply temperature T5 sensor is lower than 5 C see 83 5 1 and 3 5 2 for details 3 11 1 Wiring diagrams e 3 ways valve wiring to TAC4 DG circuit SS oO SIO GND OUT4 OUTS NV VO Vanne 3 voies GND blue wire 3 wegkraan NV red wire 3 way valve VO brown wire 39 Installation and users manual TAC4 DG RC e Wiring of supply air T sensor to TAC4 DG circuit SS m m m Ba um um m u olololo slalalelwialalcloinlal mialialalc K1 K2 K3 12V 12V INT IN2 IN3 IN4 INS IN6 IN7 INS INQ 12V GND T 5 GNDOUT1 OUT2 Sonde T T Sonde T sensor e Switching of a relay to control the circulator SAT3 O R 3 relay Circulateur Circulateur OFF ON e Possibility to stop the post heating with an external contact Si mm m
48. upply and exhaust fans 10 EXH SUP For TS2 select airflow ratio between exhaust fans F3 F4 and supply Fans F1 F2 airflows 100 23 11 12 13 14 19 16 TIME 3 SET VAL CPs 000 EXH SUP 100 TIME 4 SET VAL CPs 000 EXH SUP 100 Installation and users manual TAC4 DG RC Enter TS3 starting time If empty time slot is inactive For TS3 enter coefficient applied to the pressure assignment defined in the basic setup Select 000 to stop both supply and exhaust fans For TS3 select airflow ratio between exhaust fans F3 F4 and supply Fans F1 F2 airflows Enter TS4 starting time If empty time slot is inactive For TS4 enter coefficient applied to the pressure assignment defined in the basic setup Select 000 to stop both supply and exhaust fans For TS4 select airflow ratio between exhaust fans F3 F4 and supply Fans F1 F2 airflows If CPs mode on SUPPLY EXHAUST 3 10 11 12 13 14 15 16 TIME 1 CPs on SUP 100 CPs on EXH 100 TIME 2 CPs on SUP 100 CPs on EXH 100 TIME 3 CPs on SUP 100 CPs on EXH 100 TIME 4 CPs on SUP 100 CPs on EXH 100 Enter TS1 starting time If empty time slot is inactive For TS1 enter coefficient applied to the supply pressure assignment defined in the basic setup Select 000 to stop both supply and exhaust fans For TS1 enter coefficient applied to the exhaust
49. ustriel de Sauveni re 102 Chauss e de Tirlemont B 5030 GEMBLOUX TEL 32 0 81 62 52 52 FAX 32 0 81 62 52 53 www lemmens com PLC 02 2015 Cid 050034
50. wiring diagrams 13 3 3 3 LS Mode setup operating instructions and wiring diagrams 16 3 3 4 CPs Mode setup operating instructions and wiring diagrams 19 34 Timezslelsscheglles nn een 22 DO ee ee 22 342 CONIO INO A Ra A EE A A A 22 3 4 3 Switching from MANU to AUTO mode scheduler 00222022200220000 26 oo AS dada Ne E en 27 3 9 1 Alam DES ee ae 27 3 5 2 Alarm table iii 30 359 JAINNOKAIROTAME ee ee ge 31 394 PS Urz Ali YE ee eee ea ere 31 36 BOOST TIUREION ea ee ane nc 32 SEA SED re eee 32 3 52 WINA A ren rennen ee 32 8 7 FHEECVOLING FUNCOM aio ee EE are 32 3 7 1 Operating description nenne nenne nenne nenne nenne nennen 33 3 72 Adatan UO z O ZO ee rer ee 33 3 7 3 Wiring diagrammes 33 3 8 Opening closing of dampers CT option at inlet sise 34 3 9 Heat exchanger anti frost protection system uuu2000n an000nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnunnnnnnnnnnnn 34 3 9 1 Anti frost protection via pulse flow reduction 34 3 9 2 Anti frost protection via regulation of the by pass opening 1 11 111 35 3 9 3 Anti frost protection with 1 internal electrical pre heating coil KWin option 36 3 9 4 Antl frost protection with 1 external hydraulic pre heating coil BAin option 37 3 10 KWout post heating electrical coil control HRglobal and HRup option 37 35 10 45 VVINING GIAQUAINS euere nen

MI Regulation TAC4 DG + RC GB

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