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Exhausto VEX100 Series Original Instructions Manual

Exact2 control system
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3004525-2017-06-28
EXact2 control system
Basic instructions for VEX100/VEX100CF
OK
EXHAUSTO
EXHAUSTO A/S
Odensevej 76
DK-5550 Langeskov
OK
Esc
EXHAUSTO
Tel. +45 65 66 12 34
Fax +45 65 66 11 10
exhausto@exhausto.dk
www.exhausto.dk
EXact_VEX100/100CF
VEX100 CF
Original instructions

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Summary of Contents for Exhausto VEX100 Series

  • Page 1 EXact_VEX100/100CF 3004525-2017-06-28 EXact2 control system Basic instructions for VEX100/VEX100CF VEX100 CF EXHAUSTO EXHAUSTO Original instructions EXHAUSTO A/S Tel. +45 65 66 12 34 Odensevej 76 Fax +45 65 66 11 10 DK-5550 Langeskov exhausto@exhausto.dk www.exhausto.dk...
  • Page 2 3004525-2017-06-28 Menu structure User menu: Technician and service menu: 1 Operating mode Main menu Manual Operation > Operating mode > Operating readings > °C Settings > 2 Operating readings Alarm and info > Time and weekly plan > Air temperature > Versions >...

  • Page 3: Table Of Contents

    3004525-2017-06-28 Symbols used in these instructions..............6 Software version....................6 Software version ..................... 6 1. User mode 1.1. HMI panel........................ 7 1.2. Display icons......................8 2. Operation, access codes and selecting language 2.1. Using the HMI panel.....................10 2.1.1. Using keys within the menus................10 2.2.
  • Page 4 3004525-2017-06-28 Menu 3.1.4 + Menu 8.1 - Filter (monitoring in case of pressure) ....47 Menu 3.1.4 + Menu 8.1 - Filter (monitoring with hour counter) ..... 47 Menu 3.1.5 - Night-time cooling ..............48 Menu 3.1.6 - Cold recovery................51 Menu 3.1.7 - Fan limits...................51 Menu 3.1.8 - Temperature limits for supply air and room.......51 Room temperature limits................
  • Page 5 3004525-2017-06-28 VEX140-150-160VR HCE ................102 VEX140-150-160VL HCW ................102 VEX140-150-160VL HCE ................103 VEX140CR HCW ..................103 VEX140CR HCE..................104 VEX140CL HCW ..................104 VEX140CL HCE ..................105 VEX170HR HCW ..................105 VEX170HR HCE ..................106 VEX170HL HCW ..................106 VEX170HL HCE ..................107 Appendix 2 - Temperature resistance table Temperature resistance table DC95..............

  • Page 6: Symbols Used In These Instructions

    Symbols and software version 3004525-2017-06-28 Symbols and software version Symbols used in these instructions Prohibition symbol Failure to observe instructions marked with a prohibition 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.

  • Page 7: User Mode

    Display Browse menu or set value Activate menu/confirm key Browse menu or set value mode EXHAUSTO If the front cover is extended, push it back in. The extra keys are for service tech- nician use only. EXHAUSTO EXHAUSTO 7/112...

  • Page 8: Display Icons

    User mode 3004525-2017-06-28 1.2 Display icons Icon Description Manual operation Timer overridden until next changeover in the timer schedule Timer, current indoor air quality level is comfort Timer, current indoor air quality level is economy Timer, current indoor air quality level is standby Timer, VEX/CX has stopped Timer, no changeover times defined in timer schedule BMS-controlled operation...
  • Page 9 User mode 3004525-2017-06-28 Icon Description External start/stop disconnected. See Electrical Installation Guide for further information Summertime Wintertime No communication on the external BUS or communication between the VEX/CX and HMI is disconnected Fire alarm. Closed circuit open and the pre-set fire alarm function acti- vated Fire! Startup: Web server accessing database.

  • Page 10: Operation, Access Codes And Selecting Language

    3004525-2017-06-28 language 2. Operation, access codes and selecting language 2.1 Using the HMI panel Keys for user mode or service mode EXHAUSTO EXHAUSTO HMI panel ready for every- HMI panel ready for service mode day use Display Service key cover 2.1.1 Using keys within the menus...

  • Page 11: Access Codes For Technician And Service Menus

    1111 code. ● The code for technician mode is1111 (some menus are hidden or read-only). EXHAUSTO recommends this mode is used for normal service tasks ● The code for specialist mode is 3142 (full ac- cess to all menus).

  • Page 12: Important When Servicing

    Operation, access codes and selecting 3004525-2017-06-28 language 2.3 IMPORTANT when servicing Do not open the service doors before the supply voltage has been disconnected at the isolation switch. The isolation switch is located on the connection box, see illustration. VEX100H VEX100V VEX140C 12/112...
  • Page 13 Operation, access codes and selecting 3004525-2017-06-28 language Weekly plan It is important to set ventilation to OFF when the weekly plan is active: Set ventilation to OFF NB - If the HMI panel shows 0% (VEX/CX is inactive) and the unit is operating to a weekly plan when servicing begins, °C there is a risk that the program may...

  • Page 14: Auxiliary Service Panel

    Operation, access codes and selecting 3004525-2017-06-28 language 2.3.1 Auxiliary service panel If the HMI panel is located far from the VEX/CX, it is recommended that an auxiliary HMI panel be connected to the VEX/CX in the connection box. Auxiliary service panel which overrides the fixed HMI panel Fixed HMI-panel Service panel con-...

  • Page 15: Menu 3.2 - Selecting Language

    Operation, access codes and selecting 3004525-2017-06-28 language Cable requirements The service panel cable can be ordered from EXHAUSTO (product number: HMI- SERVICEC). Menu 3.2 - Selecting language 3 Settings 3.2 General Main menu Operating mode > Unit > Date and time >...

  • Page 16: Menu 3.2 - Reload Database

    Operation, access codes and selecting 3004525-2017-06-28 language This cannot be reversed and the VEX/CX will restart. 3.2 General Date and time > Language > English Reset settings > Reload database > Menu 3.2 - Reload database Selecting "Reset settings" resets the user settings. See the menu guide for details of which menus are affected.

  • Page 17: Menu 3.7 - Backup/Restore

    ● It can take up to 20 seconds to estab- lish the connection to the USB The backup file can only be saved on a EXHAUSTO USB plug. Once the file has been saved it is not possible to change the file name or type.

  • Page 18: Starting Up The Unit For Operation

    Starting up the unit for operation 3004525-2017-06-28 3. Starting up the unit for operation The Modbus connectors must not be connected or removed while the units are powered up. Both Modbus units must be switched off before making changes, otherwise the units may be damaged. During commissioning, it may be necessary to work with the control system boxes open.

  • Page 19: Start Configuration

    Starting up the unit for operation 3004525-2017-06-28 Start configuration Step Action Check that the correct configuration for the VEX/CX has been se- lected at the factory via menu 3.3. Check that all accessories have been configured in menu 3.4 If a CO sensor is installed, check in Menu 3.1.2.1 "CO compensa- tion"...

  • Page 20: Menu 3.4 - Accessories

    ● None Cooling unit Options: ● CH ● MXCU (external cooling unit) ● CCW (cold water coil) ● CU (EXHAUSTO cooling unit) ● None Filter detection Should only be changed when sensors for detecting filter soil- ing are retrofitted. Options: ●...
  • Page 21 Starting up the unit for operation 3004525-2017-06-28 Line in Menu 3.4 Factory-set and Comments should not be changed. Activating PIR sensor. Op- tions: ● Both (Both MIOPIR and PIRB connected) ● PIR2 (PIRB connected) ● PIR1 (MIOPIR connected) ● None When the sensor(s) is/are acti- vated by movement in the room, the VEX will be overrid-...

  • Page 22: Menu 3.4 Connecting Heating And Cooling Units

    Dining solution is a function for use in professional kitchens. The solution is specially designed such that the extract air fan in the VEX is replaced by an EXHAUSTO box ventilator outside the VEX cabinet. In this way the extract air can be handled without having the actual electric motor in the air stream.

  • Page 23: Temperature Controlled Frost Protection -- Choice Of Method Vex100

    Starting up the unit for operation 3004525-2017-06-28 Detection VEX100/100CF Principle De-icing starts when... method Tempera- Standard/Standard Temperature sensor T registers the Temperature is below the set ture-con- value e.g. T < 0°C. (Menu temperature in the heat exchanger and trolled starts the de-icing process when the 7.3) indicated temperature is reached.

  • Page 24: Pressure Controlled Frost Protection -- Choice Of Method Vex100

    Starting up the unit for operation 3004525-2017-06-28 3.4 Pressure controlled frost protection -- choice of method VEX100 Is an imbalance acceptable? METHOD 4 METHOD 5 The outdoor air gradually The outdoor air gradually bypasses the heat exchanger bypasses the heat exchanger The outdoor air is The outdoor air and gradually reduced...

  • Page 25: What Is An Indoor Air Quality Level

    Starting up the unit for operation 3004525-2017-06-28 3.5 What is an indoor air quality level? Example 3.1.1.1.1 Comfort Air setpoint > Air setpoint,cool > Temp. setpoint > 21,0 °c Abs. /Rel. > Relativ Cool rel. start > Cool abs. start > Heat rel.

  • Page 26: Menu 1 - Selecting Operating Mode

    HMI panel or the Web server Timer The unit is controlled automatically via a fixed weekly plan Note during com- EXHAUSTO recommends that the operating mode be set to Manual during com- missioning missioning and changed to Timer operation when complete. NB: for manual When the unit is operating in Manual air quality level, the temperature set point (Temp.
  • Page 27 Starting up the unit for operation 3004525-2017-06-28 Method Meth- Description Following parameters are Menu od no. (1-8) Manual con- Constant speed ● Balance 3.1.1 Operating settings trol IAQ. levels > Manual control of fan speed Temp. reg. > Supply air Air reg.

  • Page 28: Menu 3.1.1 - Operating Settings Balance

    Starting up the unit for operation 3004525-2017-06-28 Method Meth- Description Following parameters are Menu od no. (1-8) Constant pressure regulated ● Supply airflow values 3.1.1.4 Constant pressure supply air with slave-control- for maximum and min- Supply air: led extract air imum ventilation Setp.

  • Page 29: Menu 3.1.1.5 Regulators

    Starting up the unit for operation 3004525-2017-06-28 Example of balance The examples show a unit with manual fan control and balances of 0.80 and 1.20 respectively. Range The required airflow is outside the unit’s normal operating range balanced unbalanced Less than 1 = less supply air - Greater than 1 = less extract air Note for methods 3, Balance is not active for air regulation methods 3, 4, 7 and 8.

  • Page 30: Menus 3.1.1.1.1 To 3.1.1.1.4 Configuring The Indoor Air Quality Levels

    Starting up the unit for operation 3004525-2017-06-28 Kp and Ti settings should only be changed by persons trained in commissioning ventilation systems. If the following is selected Permitted operations Technician mode (code 1111) Read the settings for the vari- ous regulators Specialist mode (code 3142) Set Kp and Ti for the various regulators...

  • Page 31: Menu 3.1.1.1.X - Cooling Relative Start

    Starting up the unit for operation 3004525-2017-06-28 Menu 3.1.1.1.x - Cooling relative start Definition This value determines when cooling must start in relation to the relative tempera- ture. Low value = narrow temperature regulation range, leading to a comfortable indoor climate. High value = wider temperature regulation range, which provides cooling energy savings.

  • Page 32: Menu 3.1.1.1.X - Heating Absolute Start

    Starting up the unit for operation 3004525-2017-06-28 Example If Cooling abs. start is set to 24°C, the cooling unit will first start to operate when the temperature exceeds 24°C, even though the daily user has set the required room temperature to 21°C. Menu 3.1.1.1.x - Heating absolute start Definition This value determines when heating must start in relation to the absolute tempera-...
  • Page 33 Starting up the unit for operation 3004525-2017-06-28 Max. and Min. may never be set closer to each other than 1K. If the following temperature will be is selected controlled by... supply air regula- supply air temperature Supply air temperature will never tion be higher than "Maximum"...

  • Page 34: Menu 3.1.1.1.X - Supply Air Regulation, Absolute

    Starting up the unit for operation 3004525-2017-06-28 Menu 3.1.1.1.x - Supply air regulation, absolute 3.1.1.1.x xxxxxxx Air setpoint > °c Air setpoint,cool Temp. setpoint > 21,0 Abs. / Rel. > Absolute Cool rel. start > °c Cool abs. start > 26,0 Heat rel.

  • Page 35: Menu 3.1.1.1.X - Room Temperature Regulation, Absolute

    Starting up the unit for operation 3004525-2017-06-28 Menu 3.1.1.1.x - Room temperature regulation, absolute 3.1.1.1.x xxxxxxx Air setpoint > °c Air setpoint,cool Temp. setpoint > 21,0 Abs. / Rel. > Absolute Cool rel. start > °c Cool abs. start > 26,0 Heat rel.

  • Page 36: Menu 3.1.1.1.X - Supply Air Regulation, Relative

    Starting up the unit for operation 3004525-2017-06-28 Menu 3.1.1.1.x - Supply air regulation, relative 3.1.1.1.x xxxxxxx Air setpoint > Air setpoint,cool > Temp. setpoint > 21,0 °c Abs. / Rel. > Relativ Cool rel. start > Cool abs. start > Heat rel.
  • Page 37 Starting up the unit for operation 3004525-2017-06-28 Example 2: Minimum and Maximum supply air temp. limit Cooling rel. start and Heating rel. start: 37/112...

  • Page 38: Menu 3.1.1.1.X - Room Temperature Regulation, Relative

    Starting up the unit for operation 3004525-2017-06-28 Menu 3.1.1.1.x - Room temperature regulation, relative 3.1.1.1.x xxxxxxx Air setpoint > Air setpoint,cool > Temp. setpoint > 21,0 °c Abs. / Rel. > Relativ Cool rel. start > Cool abs. start > Heat rel.

  • Page 39: Menu 3.1.1 - Operation Settings - Temperature Regulation

    Starting up the unit for operation 3004525-2017-06-28 Example 2: Minimum and Maximum room temp. limit Cooling rel. start and Heating rel. start: Menu 3.1.1 - Operation settings - Temperature regulation Select one of two temperature regulation methods: ● Supply air temperature regulation ●...

  • Page 40: Compensation

    Starting up the unit for operation 3004525-2017-06-28 ● Modulating heating coil(s). ● Any external cooling unit and cooling recovery Select Select one of the following: ● Supply air regulation - Typically used when the unit serves several rooms with different loads (sunlight, people, machines). The temperature is regula- ted by the built-in temperature sensor in the supply air spigot.

  • Page 41: Menu 3.1.2.1 - Co2 Compensation

    Starting up the unit for operation 3004525-2017-06-28 ● All compensation options can be connected and active at the same time, and may influence the control airflow ● CO and humidity compensation cannot be activated if air regulation method 8 is selected. Autostart with timer If the weekly schedule is at OFF and either the CO or the humidity level exceeds...

  • Page 42: Menu 3.1.2.2 - Humidity Compensation Of Airflow

    Starting up the unit for operation 3004525-2017-06-28 Menu 3.1.2.2 - Humidity compensation of airflow Requirements A humidity sensor (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.

  • Page 43: Menu 3.1.2.3 - Airflow Reduction

    Starting up the unit for operation 3004525-2017-06-28 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 supply air temperature. This makes it possible to maintain the required supply air temperature longer.

  • Page 44: Menu 3.1.2.4 - Outdoor Compensation Of Airflow

    Starting up the unit for operation 3004525-2017-06-28 Menu 3.1.2.4 - Outdoor compensation of airflow Function When the control system is operating, this function reduces the required airflow in the event of falling outdoor air temperature. Selecting outdoor Activate in Menu 3.1.2.4. compensation Example Outdoor air temperature is...

  • Page 45: Menu 3.1.3 - Temperature Compensation

    Starting up the unit for operation 3004525-2017-06-28 Menu 3.1.3 - Temperature compensation Outdoor air temperature compensation (menu 3.1.2.1) Function The set point for the supply air temperature can be increased if outdoor air tem- peratures are low. The supply air temperature can be lowered if outdoor air tem- peratures are high.

  • Page 46: Summertime Compensation (Menu 3.1.2.2)

    Starting up the unit for operation 3004525-2017-06-28 Example Supply air temperature is Action Too cold when outdoor air tempera- 'Temp. low and/or "Comp. low' raised ture low Too warm when outdoor air tempera- 'Temp. low and/or "Comp. low' lowered. ture low Too cold when outdoor air tempera- 'Temp.

  • Page 47: Menu 3.1.4 + Menu 8.1 - Filter (Monitoring In Case Of Pressure)

    Starting up the unit for operation 3004525-2017-06-28 Example Room temperature is Action Too cold when outdoor air tempera- 'Temp. high' lowered and/or "Comp. ture high grad' raised Too warm when outdoor air tempera- 'Temp. high' raised and/or "Comp. grad' ture high lowered Menu 3.1.4 + Menu 8.1 - Filter (monitoring in case of pressure) General...

  • Page 48: Menu 3.1.5 - Night-Time Cooling

    Starting up the unit for operation 3004525-2017-06-28 3.1.4 Filter Operating days: Warning > Alarm > 100d Change of filter > Last changed: Date 17-05-2017 Operating days This shows the number of operating days since the last filter change since change Warning This is where the number of operating days is set which must elapse before an alarm on incipient filter soiling in the outdoor air and extract air filters is signalled.
  • Page 49 Starting up the unit for operation 3004525-2017-06-28 Override The following can override the night-time cooling function: ● If the system is controlled by a PIR sensor ● If the Manual indoor air quality level is active NB: for third-party If third-party equipment with damper is fitted to the unit, check equipment with that this does not impeded air replacement when night-time cool- damper...
  • Page 50 Starting up the unit for operation 3004525-2017-06-28 3.1.5 Night-time cooling 3.1.5.9 Permit night-time cooling Active period > Summer Comfort > Set point > 18°C Standby > Min. supply temp. > 10°C Economy > ΔT max. > ΔT min. > Start time > 00:00 Stop time >...

  • Page 51: Menu 3.1.6 - Cold Recovery

    Starting up the unit for operation 3004525-2017-06-28 *The extract air temperature is always used, regardless of whether a room tempera- ture sensor is installed for the system. Menu 3.1.5.9 - Per- mit night-time cool- is set to and the indoor air quality is activated level is Comfort/Standby/...

  • Page 52: Room Temperature Limits

    Starting up the unit for operation 3004525-2017-06-28 Supply air tempera- ture limits Setting Go to menu Lowest permitted supply air tempera- 3.1.8 Range: 10.0℃... ture 25.0°C Highest permitted supply air tempera- Range: 30.0℃... ture 35.0°C The settings above must only be changed if special circumstances require this.

  • Page 53: Menu 5.2 - Weekly Plan

    Starting up the unit for operation 3004525-2017-06-28 Menu 5.2 - Weekly plan Plan type When "Timer" operation has been selected in Menu 1, the weekly plan must be configured. Select one of the following three plan types: Plan type Use when Program interval Different programs are required Monday, Tuesday, Wednes-...

  • Page 54: Menu 7 - Safety Functions

    Starting up the unit for operation 3004525-2017-06-28 Program example 5.2.2.1 Weekday 1 IAQ. level > Standby 1 Time of day > 06:00 2 IAQ. level > Comfort 2 Time of day > 07:30 3 IAQ. level > Economy 3 Time of day > 17:30 4 IAQ.

  • Page 55: Menu 7.2 - Frost Protection Of Hcw

    Starting up the unit for operation 3004525-2017-06-28 Menu 7.2 - Frost protection of HCW Setting of frost pro- tection 7.2 Frost protection HCW Stop temperature > 15°C Warning temp. > 2,0K Number of restarts > Heat retention > 22°C RPT-X fitted > Menu line Function Action...

  • Page 56: Menu 7.3 - Frost Protection Heat Exchanger

    Starting up the unit for operation 3004525-2017-06-28 If the return water tem- and total Response perature does the fol- number of lowing within a five-mi- restarts nute period Remains below the con- > 0 5 min: After 5 minutes, the MVM stant heating temperature valve will close and the CP will stop.
  • Page 57 Starting up the unit for operation 3004525-2017-06-28 Fine adjustment of As ice formation in the heat exchanger is strongly dependent on the humidity con- tent of the extract air, the air temperatures and the air volumes, it is recommended that the unit is fine-adjusted once it has been brought into use. Fine adjustment of can reduce annual energy consumption.

  • Page 58: Operation

    Operation 3004525-2017-06-28 4. Operation Menu 2 - Operating readings General All of the operating parameters can be read in Menu 2. _ _ _ is shown in the menu if a given unit is not fitted. Menu 2.1 - Air temperatures 2 Operating readings 2.1 Air temperature 2.1.1 Setp.

  • Page 59: Menu 2.1.1 - Set Points For Regulators

    Operation 3004525-2017-06-28 Example VEX100 + Chiller Diagrams See Appendix 1 for sketches. Menu 2.1.1 - Set points for regulators This menu shows set points for: 2.1.1 Setp. regulators ● Room temperature regulator Room 10,0 Heat recovery ● Heat recovery regulator 10,0 Cooling unit 10,0...

  • Page 60: Menu 2.4 - Temperature Regulating Units

    Operation 3004525-2017-06-28 Menu 2.4 - Temperature regulating units The menu shows the current: 2.4 Temp. reg. units ● heat recovery Heat recovery 100.0 Heating unit ● Output of heating coil (if installed) Heat pump unit Cooling unit ● Output of heat pump unit (if installed) Cooling recovery De-icing Inactive...

  • Page 61: Menu 2.7 - Ch Cooling Unit

    Operation 3004525-2017-06-28 Electric heating coil The menu shows: ● number of power steps in heating coil 2.6 Heating coil ● Number of active power steps Electric heating coil: Power step total ● output of the modulating step Active power steps Setpoint ●...

  • Page 62: Menu 2.11 - Hour Counters

    Operation 3004525-2017-06-28 Menu 2.11 - Hour counters The menu shows timers for the ventilator motors. 2.11 Timetæller Tilluftmotor 1500hr Fraluftmotor 1500hr Menu 2.12 - CO2/RH sensors (if mounted) The menu shows: 2.12 CO2/RH sensors ● CO level CO2 level 0ppm Humidity level 0%RH ●...

  • Page 63: Menu 8 - Service

    Operation 3004525-2017-06-28 Menu 8 - Service Do not open the service doors before the supply voltage has been disconnected at the isolation switch. The isolation switch is located on the connection box, see illustration. VEX100H VEX100V VEX140C 63/112...
  • Page 64 Operation 3004525-2017-06-28 Weekly plan It is important to set ventilation to OFF when the weekly plan is active: Set ventilation to OFF NB - If the HMI panel shows 0% (VEX/CX is inactive) and the unit is operating to a weekly plan when servicing begins, °C there is a risk that the program may...

  • Page 65: Auxiliary Service Panel

    Operation 3004525-2017-06-28 Auxiliary service panel If the HMI panel is located far from the VEX/CX, it is recommended that an auxiliary HMI panel be connected to the VEX/CX in the connection box. Auxiliary service panel which overrides the fixed HMI panel Fixed HMI-panel Service panel con- nector - Exact2...

  • Page 66: Menu 8.2 - Vdi 6022

    Operation 3004525-2017-06-28 Cable requirements The service panel cable can be ordered from EXHAUSTO (product number: HMI- SERVICEC). Menu 8.2 - VDI 6022 Explanation VDI 6022 is a German hygiene standard. Menu 8.2 VDI 6022 Light > Filter pressure: Extract air filter...

  • Page 67: Menu 8.3.2 Heating Coil

    Operation 3004525-2017-06-28 Menu 8.3.2 Heating coil For electric heating coil HCE: 8.3.2 Heating coil If there are no current faults for the heating coil ("Fault on unit" shown as "No"), Supply air forced start may be activated: Min. flow 0l/s Measured flow 0l/s ●...
  • Page 68 Operation 3004525-2017-06-28 Select "Yes" for calibration (automatically changes to "No" again when the MPTs 8.4 Calibration of MPT have been calibrated). MPT1, P1 MPT1, P2 MPT2, P1 MPT2, P2 MPT3, P1 MPT3, P2 MPT4, P1 MPT4, P2 MPT5, P1 MPT5, P2 MPT6, P1 MPT6, P2 MPT7, P1...

  • Page 69: Alarms

    Alarms 3004525-2017-06-28 5. Alarms 5.1 Alarms and info (Menu 4) Alarms are shown in the event of unit faults or irregular operation ● Check the Current list (Menu 4) for alarm messages and refer to the list of alarms given at the end of these instructions. List of alarms 4.5 Current list Main menu...
  • Page 70 Alarms 3004525-2017-06-28 Alarm code If an alarm has been generated, an alarm code is shown in the display in the for- mat XXYYZ, where . XX = unit YY = fault code Z = category of alarm. See category table in this section. 16 alarms There can be up to 16 alarms on the "Current list".

  • Page 71: List Of Alarms

    Alarms 3004525-2017-06-28 5.4 List of alarms Main Control VEX/CX Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 00 01 Control is powered Indicates when control is powered 00 02 Unknown reboot of ●...
  • Page 72 Alarms 3004525-2017-06-28 Pressure transmitter 2 Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 05 01 No modbus communi- ● Check the modbus cable between the connection board (EX- cation to pressure act)/main board (EXact2) and MPT2.
  • Page 73 Alarms 3004525-2017-06-28 Pressure transmitter 5 Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 08 01 No modbus communi- ● Check the modbus cable between the connection board (EX- cation to pressure act)/main board (EXact2) and MPT5.
  • Page 74 Alarms 3004525-2017-06-28 Temperature sensor Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy TE11: TE11: ● Check the sensor's resistance complies with the actual tem- Extract air duct temper- perature. See temperature resistance table appendix 2 ature sensor discon- ●...
  • Page 75 Alarms 3004525-2017-06-28 Temperature sensor Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy TE-RPT: TE-RPT: ● Check the sensor's resistance complies with the actual tem- Return water pipe tem- perature. See temperature resistance table appendix 2. perature sensor on wa- ●...
  • Page 76 Alarms 3004525-2017-06-28 Fire thermostats Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 12 01 BT40/50, FIRE: BT40/50, FIRE: In event of Fire: Follow the building emergency Triggered fire alarm procedure has stopped VEX/CX Fire thermostat triggered when there is no fire:...
  • Page 77 Alarms 3004525-2017-06-28 HC Alarm Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 14 01 Thermal fuse TSA70 HCE: activated Info is reset when the temperature falls below 70°C 14 02 Thermal fuse TSA70 HCE: is/has been activated...
  • Page 78 Alarms 3004525-2017-06-28 HC Alarm Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 14 10 Return water temp. too HCW: low. Frost protection ● Check that the hot water supply to the heating coil is function- activated.
  • Page 79 Alarms 3004525-2017-06-28 HC Alarm Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 14 14 Could not increase re- HCW: turn water temp. within ● Check that the hot water supply to the heating coil is function- five minutes after frost protection with VEX If the hot water supply is functioning, check if the motor valve...
  • Page 80 Alarms 3004525-2017-06-28 HC Sensor Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 15 01 Supply air duct temper- ● Check the sensor's resistance complies with the actual tem- ature sensor discon- perature.
  • Page 81 Alarms 3004525-2017-06-28 HC Controller Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 16 01 MHCW: Module config- Check the jumper in the CN6 connector on the heat control circuit ured incorrectly.
  • Page 82 Alarms 3004525-2017-06-28 Airflow/pressure Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy Airflow/pressure in ex- The unit provides airflow that is 25% below the set point tract air duct airflow too ●...
  • Page 83 Alarms 3004525-2017-06-28 sensor Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 21 01 No modbus communi- ● Check the modbus cable between the connection board (EX- cation to MIO CO act)/main board (EXact2) and MIO module.
  • Page 84 Alarms 3004525-2017-06-28 Humidity sensor RH Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 23 01 No modbus communi- ● Check the modbus cable between the connection board (EX- cation to MIO-RH mod- act)/main board (EXact2) and MIO module.
  • Page 85 Alarms 3004525-2017-06-28 External cooling unit (MXCU) sensor Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 27 01 Supply air duct temper- ● Check the sensor's resistance complies with the actual tem- ature sensor discon- perature.
  • Page 86 Alarms 3004525-2017-06-28 MCCW Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 30 01 Supply air duct temper- ● Check the sensor's resistance complies with the actual tem- ature sensor discon- perature.
  • Page 87 Alarms 3004525-2017-06-28 De-icing Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 32 01 Pressure loss across ● Clean the counter flow heat exchanger. Alarm triggered only counter flow heat ex- when outdoor air temperature is above 10 °C.
  • Page 88 Modbus Status Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 34 01 SendModbusDataRe- Contact EXHAUSTO A/S ceive fail 34 02 SendModbusDataSend Contact EXHAUSTO A/S fail 34 03 SendModbusDataCon- Contact EXHAUSTO A/S...
  • Page 89 Alarms 3004525-2017-06-28 External control Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 35 01 No modbus communi- ● Check the modbus cable between the connection board (EX- cation to the MIO- act)/main board (EXact2) and MIO module.
  • Page 90 Alarms 3004525-2017-06-28 EC Controller 1 Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 36 02 The supply voltage to ● Check for low voltage to EC controller 1 the EC controller is too 36 03 The supply voltage to ●...
  • Page 91 Alarms 3004525-2017-06-28 EC Controller 2 Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 37 02 The supply voltage to ● Check for low voltage to EC controller 2 the EC controller is too 37 03 The supply voltage to ●...
  • Page 92 Alarms 3004525-2017-06-28 Configuration Troubleshooting Alarm description (See appendix 1: "Simplified diagrams" for the positioning of dampers, sensors, air directions, etc.) xx yy 40 01 Type has not been ● Configure the VEX/CX in menu 3.3 configured 40 02 Size has not been con- ●...
  • Page 93 43 07 Suction gas pressure ● Check connection between sensor and cooling control system. sensor has short- ● Contact EXHAUSTO service. circuited. 43 08 Suction gas pressure ● Check connection between sensor and cooling control system. sensor has been inter- ●...
  • Page 94 ● Turn off the power to the cooling unit for one minute at the iso- lation switch on the cooling unit. ● Then cancel the alarm via the HMI panel. 43 15 Unknown configura- Chiller size has not been configured. Contact EXHAUSTO service. tion. Cooling status Troubleshooting Alarm description (See appendix 1: "Simplified diagrams"...

  • Page 95: Appendix 1 - Simplified Diagrams Simplified Diagrams

    Appendix 1 - Simplified diagrams 3004525-2017-06-28 Appendix 1 - Simplified diagrams Simplified diagrams Simplified diagrams for unit with chiller For units with an installed chiller, see the simplified diagrams at the rear of the chiller instructions. VEX140-170CF HR HCW Tice Outdoor air Exhaust air TE2.1...

  • Page 96: Vex140-170Cf Hr Hce

    Appendix 1 - Simplified diagrams 3004525-2017-06-28 VEX140-170CF HR HCE Tice Outdoor air Exhaust air TE2.1 TE1.2 MPT1 MPT3 MPT2 TE2.2 Supply air Extract air TE1.1 TSA70 TSA80 TSA90 VEX140-170CF HL HCW Tice Outdoor air Exhaust air TE2.1 TE1.2 MPT1 TE-CCW-SUPPLY MPT3 TE-RPT MPT2...

  • Page 97: Vex140-170Cf Hl Hce

    Appendix 1 - Simplified diagrams 3004525-2017-06-28 VEX140-170CF HL HCE Tice Outdoor air Exhaust air TE2.1 TE1.2 MPT1 MPT3 MPT2 TE2.2 Supply air Extract air TE1.1 TSA70 TSA90 TSA80 VEX140-170CF VR HCW TE1.2 TE-RPT TE2.2 TE-CCW-SUPPLY Exhaust air Supply air MPT1 Tice Extract air Outdoor air...

  • Page 98: Vex140-170Cf Vr Hce

    Appendix 1 - Simplified diagrams 3004525-2017-06-28 VEX140-170CF VR HCE TE1.2 TSA70 TE2.2 TE-CCW-SUPPLY TSA90 Exhaust air Supply air MPT1 Tice TSA80 Extract air Outdoor air MPT3 MPT2 VEX140-170CF VL HCW TE-CCW-SUPPLY TE2.2 TE-RPT TE1.2 Supply air Exhaust air MPT1 Tice Extract air Outdoor air TE1.1...

  • Page 99: Vex140-170Cf Vl Hce

    Appendix 1 - Simplified diagrams 3004525-2017-06-28 VEX140-170CF VL HCE TE-CCW-SUPPLY TE2.2 TSA70 TE1.2 TSA90 Supply air Exhaust air MPT1 Tice TSA80 Extract air Outdoor air TE1.1 MPT2 MPT3 TE2.1 VEX140-150-160HR HCW MPT3 Tice MPT2 Outdoor air Exhaust air TE-CCW-SUPPLY MPT1 TE1.2 TE2.1 TE-RPT...

  • Page 100: Vex140-150-160Hr Hce

    Appendix 1 - Simplified diagrams 3004525-2017-06-28 VEX140-150-160HR HCE MPT3 Tice MPT2 Outdoor air Exhaust air TE-CCW-SUPPLY MPT1 TE2.1 TE1.2 Supply air Extract air TE2.2 TSA70 TSA90 TE1.1 TSA80 VEX140-150-160HL HCW Tice MPT3 MPT2 Outdoor air Exhaust air TE-CCW-SUPPLY MPT1 TE1.2 TE2.1 TE-RPT Supply air...

  • Page 101: Vex140-150-160Hl Hce

    Appendix 1 - Simplified diagrams 3004525-2017-06-28 VEX140-150-160HL HCE Tice MPT3 MPT2 Outdoor air Exhaust air TE-CCW-SUPPLY MPT1 TE2.1 TE1.2 Supply air Extract air TE2.2 TSA70 TSA90 TSA80 TE1.1 VEX140-150-160VR HCW TE1.2 TE-RPT TE2.2 TE-CCW-SUPPLY Exhaust air Supply air MPT1 Tice Extract air Outdoor air MPT3...

  • Page 102: Vex140-150-160Vr Hce

    Appendix 1 - Simplified diagrams 3004525-2017-06-28 VEX140-150-160VR HCE TE1.2 TSA70 TE2.2 TE-CCW-SUPPLY TSA90 Exhaust air Supply air MPT1 Tice TSA80 Extract air Outdoor air MPT3 MPT2 TE2.1 TE1.1 VEX140-150-160VL HCW TE-CCW-SUPPLY TE2.2 TE-RPT TE1.2 Supply air Exhaust air MPT1 Tice Extract air Outdoor air MPT3...

  • Page 103: Vex140-150-160Vl Hce

    Appendix 1 - Simplified diagrams 3004525-2017-06-28 VEX140-150-160VL HCE TE-CCW-SUPPLY TE2.2 TSA70 TE1.2 TSA90 Supply air Exhaust air MPT1 Tice TSA80 Extract air Outdoor air MPT3 TE1.1 TE2.1 MPT2 VEX140CR HCW MPT3 MPT1 Tice MPT2 Outdoor air Exhaust air TE-CCW-SUPPLY TE1.2 TE2.1 TE-RPT Supply air...

  • Page 104: Vex140Cr Hce

    Appendix 1 - Simplified diagrams 3004525-2017-06-28 VEX140CR HCE MPT3 MPT1 Tice MPT2 Outdoor air Exhaust air TE-CCW-SUPPLY TE1.2 TE2.1 Supply air Extract air TE2.2 TSA70 TSA90 TE1.1 TSA80 VEX140CL HCW Tice MPT1 MPT3 MPT2 Outdoor air Exhaust air TE-CCW-SUPPLY TE1.2 TE2.1 TE-RPT Supply air...

  • Page 105: Vex140Cl Hce

    Appendix 1 - Simplified diagrams 3004525-2017-06-28 VEX140CL HCE Tice MPT1 MPT3 MPT2 Outdoor air Exhaust air TE-CCW-SUPPLY TE1.2 TE2.1 Supply air Extract air TE2.2 TSA70 TSA90 TSA80 TE1.1 VEX170HR HCW MPT3 Tice TE2.1 Outdoor air Exhaust air TE-CCW-SUPPLY MPT1 TE1.2 MPT2 TE-RPT Supply air...

  • Page 106: Vex170Hr Hce

    Appendix 1 - Simplified diagrams 3004525-2017-06-28 VEX170HR HCE TSA80 MPT3 Tice TE2.1 Outdoor air Exhaust air TE-CCW-SUPPLY MPT1 MPT2 TE1.2 Supply air Extract air TE2.2 TSA70 TE1.1 TSA90 VEX170HL HCW Tice MPT3 TE2.1 Outdoor air Exhaust air TE-CCW-SUPPLY MPT1 TE1.2 MPT2 TE-RPT Supply air...

  • Page 107: Vex170Hl Hce

    Appendix 1 - Simplified diagrams 3004525-2017-06-28 VEX170HL HCE TSA80 Tice MPT3 TE2.1 Outdoor air Exhaust air TE-CCW-SUPPLY MPT1 MPT2 TE1.2 Supply air Extract air TE2.2 TSA70 TSA90 TE1.1 107/112...

  • Page 108: Appendix 2 - Temperature Resistance Table Temperature Resistance Table Dc95

    Appendix 2 - Temperature resistance ta- 3004525-2017-06-28 Appendix 2 - Temperature resistance table Temperature resistance table DC95 Temperature Resistance Temperature Resistance Temperature Resistance [°C] [Ohm] [°C] [Ohm] [°C] [Ohm] 324270 34464 5774 320139 32737 5545 299580 31107 5326 280471 29567 5116 262702 28113...
  • Page 109 Appendix 2 - Temperature resistance ta- 3004525-2017-06-28 Temperature Resistance Temperature Resistance Temperature Resistance [°C] [Ohm] [°C] [Ohm] [°C] [Ohm] 1390 840,6 528,5 1346 815,7 514,0 1303 791,6 500,0 1261 768,4 486,4 1221 746,0 473,2 1183 724,3 460,5 1146 703,3 448,2 1110 683,1 436,3...
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Vex100cf seriesVex140cf hr hcwVex170cf hr hcwVex140cf hr hceVex170cf hr hceVex140cf hl hcw ... Show all

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