Exhausto EXact2 HMI2-350-TOUCH Basic Instructions Download Page 2

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Symbols used in these instructions.................................................................... 4
Software version.................................................................................................... 4

Software version ............................................................................................. 4

1. Menu structure

Overview of menus and user levels..................................................................... 5

2. User mode

Operation................................................................................................................ 6

Use of control icons in the menus....................................................................6

Overview of HMI icons...........................................................................................7

3. Technician and service levels

3.1. Access codes for technician and service menus............................................... 9

3.2. IMPORTANT when servicing...............................................................................12

3.2.1. Connect service panel....................................................................................14

4. Starting up the unit for operation

4.1. Getting started..................................................................................................... 15

4.1.1. Menu 3.3 - VEX configuration........................................................................ 15

Menu 3.4 - Accessories..................................................................................16

4.2. De-icing method ..................................................................................................17

4.2.1. Bypass de-icing - example.............................................................................17

4.3. Temperature controlled frost protection -- choice of method......................... 18

Menu 3.5 - BMS............................................................................................. 18
Menu 3.5 - BMS............................................................................................. 19

4.4. What is an indoor air quality level?....................................................................19

Operation with CO2B, PIRB and RHB .......................................................... 20

Menu 1 - Selecting operating mode................................................................... 20
Menu 3.1.1 - Operating settings - Air regulation............................................... 21

Menu 3.1.1 - Operating settings Balance.......................................................21
Menu 3.1.1.5 Regulators ...............................................................................22

Menus 3.1.1.1.1 to 3.1.1.1.4 Configuring the selected indoor air quality levels

......................................................................................................................................23

Menu 3.1.1 - Operation settings - Temperature regulation.............................. 25
Compensation...................................................................................................... 26
Menu 3.1.2 - Air compensation........................................................................... 26

Menu 3.1.2.1 - CO2 compensation ............................................................... 26
Menu 3.1.2.2 - Humidity compensation of airflow ......................................... 27
Menu 3.1.2.3 - Airflow reduction ................................................................... 28
Menu 3.1.2.4 - Outdoor compensation of airflow .......................................... 29

Menu 3.1.3 - Temperature compensation.......................................................... 30

3006401-2022-05-04

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Summary of Contents for EXact2 HMI2-350-TOUCH

Page 1: ...TOUCH Control System Basic instructions for VEX308 Original instructions 3006401 2022 05 04 EXHAUSTO A S Odensevej 76 5550 Langeskov Denmark Tel 45 65 66 12 34 Fax 45 65 66 11 10 exhausto exhausto dk...

Page 2: ...de 20 Menu 3 1 1 Operating settings Air regulation 21 Menu 3 1 1 Operating settings Balance 21 Menu 3 1 1 5 Regulators 22 Menus 3 1 1 1 1 to 3 1 1 1 4 Configuring the selected indoor air quality level...

Page 3: ...ling unit 43 Menu 2 10 MXCU external cooling unit 43 Menu 2 11 CO2 RH sensors if mounted 44 Menu 6 Versions 44 Menu 8 Service 44 Connect service panel 46 Menu 8 2 VDI 6022 not applicable 47 Menu 8 3 F...

Page 4: ...on symbol may result in serious or fatal injury Danger symbol Failure to observe instructions marked with a danger symbol may result in personal injury and or damage to the unit Software version Softw...

Page 5: ...its Pressure Heating coil CH cooling unit CCW CU cooling unit MXCU MXHP Timers CO2 RH sensorer 3 Settings Unit General Configuration Accessories BMS Web server Backup restore 4 Alarm and info Informat...

Page 6: ...e Interface panel Control icon Used for Menu icon Navigation arrows up and down as well as setting val ues Approve icon for selection Undo icon Switch between daily user menu and technician serv ice m...

Page 7: ...r temperature shown in C Setpoint for ventilation shown as percentage 0 no ventilation OFF Unit is switched off timer operation cannot start up unit BMS or Web server controlled system overrides the O...

Page 8: ...me No communication on the external BUS or communication between the VEX CX and HMI is disconnected Fire Fire alarm Closed circuit open and the pre set fire alarm function acti vated Loading Linux Sta...

Page 9: ...menus are hidden or read on ly EXHAUSTO recommends this mode be used for normal service tasks The code for the specialist level is 3142 full access to all menus NB incorrect settings wrong values may...

Page 10: ...the main menu and select yes in Save settings Menu 3 2 1 Setting date and time Step Action Unit General Configuration Accessories BMS Web server Backup restore 3 Settings 3 2 General Date and time La...

Page 11: ...3 6 Web server Contact the network administrator for information on the correct IP address etc If the admin password is lost it can be reset to the factory setting But note that this cannot be reverse...

Page 12: ...ver guide The backup file may be saved on any medium USB PC etc A backup file saved via the web server may be renamed but the file type cannot be changed Note If a backup file has been saved from the...

Page 13: ...enu The icon for manual operation appears in the right hand corner of the menu Press the ventilation icon Set the ventilation to 0 using the arrows Press approve 23 C 0 OFF will now appear on the disp...

Page 14: ...on box NB The socket on the side of the VEX is only meant for the service HMI For perma nent connection of the HMI use the external bus connector on the EXact2 main board EXact2 main board Cable requi...

Page 15: ...work on motor controls or motor cables and termi nal boxes the power supply must be switched off for at least five mi nutes to allow the capacitors to discharge Before any commis sioning begins Check...

Page 16: ...t2 main board if the VEX was purchased with HCW Not applicable to VEX308 Cooling unit Options None MXCU external cooling unit CCW cold water coil CU EXHAUSTO cooling unit Not applicable to VEX308 Filt...

Page 17: ...ng method 4 2 1 Bypass de icing example Extract air Supply air Exhaust air Outdoor air RD13238GB 01 18 C 100 14 C 20 C 22 C 10 C 80 100 100 20 Ventilator 1 Ventilator 2 3 C Detection meth od Principle...

Page 18: ...up after hiber nation The unit restarts after two hours of hibernation If outdoor temperature is 2 Kelvin higher than when the unit went into hiberna tion or if the temperature has risen above the le...

Page 19: ...as ventilation and temperature set points and control method for a given indoor air quality level are grouped in a menu as shown in the example above Indoor climate levels Energy sav ing People in th...

Page 20: ...the following sensors Operation with CO2 CO2B and motion sensor PIRB Operation with humidity RHB and motion sensor PIRB Also operation without activation from sensors Menu 1 Selecting operating mode 1...

Page 21: ...Air reg Temp reg Balance Regulators Supply air 1 1 0 Menu 3 1 1 Operating settings Balance Definition Balance is the required ratio between the supply and extract airflows The balance can only be main...

Page 22: ...is A outside the unit s normal operating range B balanced C unbalanced NB Less than 1 less supply air Greater than 1 less extract air Menu 3 1 1 5 Regulators 3 1 1 5 Regulators Room temperature Suppl...

Page 23: ...K K Menu 3 1 1 1 x Air set point Definition Used to set the desired ventilation level for the given indoor air quality level from 0 to 100 Press OK to end Menu 3 1 7 limits menu See the range limits...

Page 24: ...Definition This value determines when the heating coil must start in relation to the relative temperature Low value narrow temperature regulation range leading to a com fortable indoor climate High va...

Page 25: ...egulation Room temperature regulation temperature regulated until the desired level is reached Temperature regulation is adjusted serially using the following elements Modulating heating coil s Any ex...

Page 26: ...mpensation of airflow reduces the airflow in case of falling outdoor temperature NB All compensation options can be connected and active at the same time and may influence the control airflow Autostar...

Page 27: ...r RHB MIO RH BMS must be fitted in order to be able to se lect humidity compensation of the airflow The sensor must be installed in the room in which you wish to make compensation such as a bathroom C...

Page 28: ...m is increased to maximum air replace ment Menu 3 1 2 3 Airflow reduction Function When the control system is operating this function reduces the required supply air airflow in the event of falling su...

Page 29: ...ance can occur in the airflows as only the supply airflow is reduced while the extract airflow is maintained at the required level CO2 and RH sensors are overridden by this function Menu 3 1 2 4 Outdo...

Page 30: ...gs Temp reg Supply air Selecting outdoor air temperature compensation Activate in Menu 3 1 3 1 Outdoor air com pensation Outdoor air compensation aims to compensate for the energy that a building ei t...

Page 31: ...door air quality feels comforta ble even when people are wearing summer clothing If summertime compensation is required select values as indicated below Example Room temperature is Action Too cold whe...

Page 32: ...eplacement Night time cooling involves high airflow ventilation with out turning on the cooling unit Conditions for night time cooling The control system performs a five minute test run to check the f...

Page 33: ...ature cannot be met night time cooling stops 10 C T max Setting for temperature difference be tween outdoor air and extract air when the unit operates with 100 fan speed 6K T min Setting for temperatu...

Page 34: ...n when the temperature difference between the room temperature and outdoor air temperature is 1K below the configured start limit Operation with CCW MXCU MXHP or MCOCW Recommended that cold recovery i...

Page 35: ...se settings Example If a user selects maximum temperature in the user menu the temperature will never exceed the value set in this menu Room temperature limits Setting Go to menu NB Lowest permitted r...

Page 36: ...eekly plan Plan type Change 5 2 5 2 2 Change Weekday Weekend 5 2 2 1 Weekday 1 IAQ level 1 Time of day 2 IAQ level 2 Time of day 3 IAQ level 3 Time of day 4 IAQ level 4 Time of day 5 IAQ level 5 Time...

Page 37: ...rds Go to Menu 7 1 and select mode Operating mode VEX308 Internal damper BP 1 factory setting Supply air and extract air stopped BP1 closed 2 Supply air 100 and extract air stopped BP1 open 3 Supply a...

Page 38: ...five restarts may be se lected Select the maximum number of restarts permitted in an hour before an alarm is trig gered Manual reset is activated by se lecting 0 for no of restarts Constant tempera tu...

Page 39: ...Tice Home Tice 0 Office school Tice 5 Fine adjustment of Tice As ice formation in the counter flow heat exchanger is strongly dependent on the humidity content of the extract air the air temperatures...

Page 40: ...duced supply air for long periods icon appears frequently and for long periods it is recommended that the heating coil output be increased 1 Increase supply temperature TE SPT 2 If the heating coil is...

Page 41: ...2 15 7 0 0 0 0 c c c c c 2 1 Air temperature Setp regulators Supply air room Extract air room Outdoor air Exhaust air External sensor 2 1 1 Setp regulators Room Heat recovery Cooling unit Heating unit...

Page 42: ...ery heating unit output if installed cooling unit output if installed cooling recovery 0 or 100 whether de icing is active or inactive de icing steps see table below countdown in seconds until restart...

Page 43: ...ating step internal temperature in electric heating coil control box Menu 2 8 CCW cold water coil 2 8 CCW Supply Pump 25 0 Off C The menu shows Supply temperature for the cold water coil Pump whether...

Page 44: ...enu shows the hardware version for each unit fitted Menu 6 3 Software The menu shows the software version for each unit fitted Menu 6 4 About EX act The menu shows system information about the EXact c...

Page 45: ...to user menu The icon for manual operation appears in the right hand corner of the menu Press the ventilation icon Set the ventilation to 0 using the arrows Press approve 23 C 0 OFF will now appear o...

Page 46: ...onnection box NB The socket on the side of the VEX is only meant for the service HMI For perma nent connection of the HMI use the external bus connector on the EXact2 main board EXact2 main board Cabl...

Page 47: ...Menu 8 3 3 Heating unit 8 3 2 Heating coil HCE Supply air Min flow Measured flow Run on Error on unit 0 0 No No 0l s 0l s For electric heating coil HCE If there are no current faults for the heating c...

Page 48: ...via the menu LSF closing damper outdoor air integral the damper is an accessory but standard for units with a water heating coil LSA closing damper exhaust air RGS AUX OUT flue gas damper not applicab...

Page 49: ...larm and info Time and weekly plan Versions Safety functions Service Save settings 4 Alarm and info Information Alarm Warning Reset alarms Current list Alarm log list Delete alarm log Yes No No No No...

Page 50: ...nfo in EXact shown only in the alarm log list Menu 4 6 Example list of alarms 36024 is an alarm on EC controller 1 36024 The alarm description is The sup ply voltage to the EC controller is too low 36...

Page 51: ...fied diagrams for the positioning of dampers sensors air directions etc xx yy z 00 01 1 Control is powered Indicates when control is powered 00 02 1 Unknown reboot of control Unknown fault call servic...

Page 52: ...n value it should be replaced 11 05 4 TE21 Outdoor air duct tem perature sensor dis connected TE21 Check the sensor s resistance complies with the actual tem perature See temperature resistance table...

Page 53: ...replaced 11 13 4 TE RPT X External temperature sensor on return water pipe from water heat ing cool has been dis connected TE RPT X Check the sensor s resistance complies with the actual tem perature...

Page 54: ...d out why the fire detec tion unit has broken the circuit If no unit is connected check jumper Filters Unit Fault code Category Alarm description Troubleshooting See appendix 1 Simplified diagrams for...

Page 55: ...annels are not blocked ducts grilles cowls Check that the filters are clean 14 07 1 Electrical heating coil internal thermal fuse activated HCE Info is reset when the temperature falls below 60 C in t...

Page 56: ...in the user menu and force start the motor valve and circulation pump in specialist menu 8 3 The alarm resets automatically when the temperature rises above the constant temperature level 14 12 3 Retu...

Page 57: ...tection with VEX stopped HCW Check that the hot water supply to the heating coil is functioning If the hot water supply is functioning check if the motor valve opens and the circulation pump is runnin...

Page 58: ...e sensor on wa ter heating coil discon nected Check the sensor s resistance complies with the actual tem perature See temperature resistance table appendix 2 If the sensor resistance has significantly...

Page 59: ...ric heat ing coil warm in last three minutes HCE The fans run on for three minutes after the electric heating coil has been in operation CO2 sensor Device Fault code Category Alarm description Trouble...

Page 60: ...rature sensor short circuited Check the sensor s resistance complies with the actual tem perature See temperature resistance table appendix 2 If the sensor resistance has significantly changed in valu...

Page 61: ...en configured Configure BMS External cooling unit MXCU sensor Unit Fault code Category Alarm description Troubleshooting See appendix 1 Simplified diagrams for the location of dampers sen sors air dir...

Page 62: ...y functions overridden lo cally due to service Cooling control temporarily controlled by Lodam Multi Tool Over ride lasts for max 60 minutes 28 13 4 Cooling control detec ted which was not se lected i...

Page 63: ...l tem perature See temperature resistance table appendix 2 If the sensor resistance has significantly changed in value it should be replaced 30 05 4 Supply water pipe tem perature sensor on wa ter coo...

Page 64: ...functions overridden lo cally due to service Cooling control temporarily controlled by Lodam Multi Tool Over ride lasts for max 60 minutes 31 13 4 Cooling control detec ted which was not se lected in...

Page 65: ...icing is de activated iHCW The return water temperature has fallen below the warning temperature and the frost protection function is active Check that the hot water supply to the heating coil is fun...

Page 66: ...onnect fail Contact EXHAUSTO A S 34 06 1 GetRegister Connect fail Contact EXHAUSTO A S Analog Motor 1 Unit Fault code Category Alarm description Troubleshooting See appendix 1 Simplified diagrams for...

Page 67: ...40 02 4 VEX size has not been configured Configure the VEX CX size in menu 3 3 40 03 4 VEX orientation has not been configured Configure orientation in menu 3 3 VEX configuration Unit Fault code Cate...

Page 68: ...mplified diagrams Simplified diagrams VEX308 with water heating coil HCW HCW RD13211 02 TE21 Tice TE12 TE11 TE22 TE RPT TE SPT MC2 CO2B RHB MC1 BP1 LSR PIRB 3006401 2022 05 04 Appendix 1 Simplified di...

Page 69: ...VEX308 with electric heating coil HCE RD13199 02 TE21 Tice TE12 TE11 TE22 LSR BP1 MC1 MC2 MHCE CO2B RHB PIRB 3006401 2022 05 04 Appendix 1 Simplified diagrams 69 72...

Page 70: ...139 904 13 17 270 52 3 342 25 131 670 14 16 476 53 3 219 24 123 972 15 15 722 54 3 101 23 116 772 16 15 008 55 2 988 22 110 035 17 14 330 56 2 880 21 103 727 18 13 687 57 2 777 20 97 820 19 13 076 58...

Page 71: ...21 97 746 0 113 473 2 82 1 183 98 724 3 114 460 5 83 1 146 99 703 3 115 448 2 84 1 110 100 683 1 116 436 3 85 1 075 101 633 5 117 424 7 86 1 042 102 644 6 118 413 5 87 1 010 103 626 3 119 402 7 88 979...

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