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Sauter flexotron®800
ventilation

Functional description

P100012082

42

5.1.7

Cooling recovery

If the extract air temperature is a settable amount lower than the outdoor temperature,
cooling recovery can be activated. When cooling recovery is activated the heat
exchanger signal will be reversed to give increasing recovery on increasing cooling
demand. The function also activates the heating function

‘‘Free heating’’: if heating is

required and the outdoor temperature is higher than the extract air temperature,
outdoor air will primarily be used.

Output signals

Controller signal

0%

100%

Exchanger

Cooling

In- and outputs

AI

Outdoor temperature sensor

AI

Extract air sensor

5.1.8

Enthalpy control

Calculating the enthalpy means to calculate the energy content of the air, taking into
consideration both the temperature and the air humidity. The value is given in energy
per kilogram air (kJ/kg). If enthalpy control is configured, the enthalpy is calculated both
indoors and outdoors. If the enthalpy is higher outdoors than indoors, the recirculation
damper will be overridden to increase the recirculation. The function is not active when
using free cooling, in this case outdoor air is used for cooling the room instead. For the
enthalpy calculation to be made, four sensors are required:

In- and outputs

AI

Outdoor temperature sensor

AI

Outdoor humidity sensor

AI

Room/Extract air temperature sensor

AI

Room humidity sensor

5.1.9

Heat exchanger efficiency monitoring

General

The function calculates the heat exchanger temperature efficiency in percent when the
output signal to the exchanger is higher than 5 % and the outdoor temperature is lower
than 10°C.
When the control signal is lower than 5 % or the outdoor temperature is higher than
10°C the display will show 0 %.
The heat exchanger efficiency is calculated using the following formula:

Efficiency = (Extractairtemp – Exhaustairtemp) /
(Extractairtemp – Outdoortemp) * 100

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Содержание flexotron 800 RDT808F211

Страница 1: ...Manual 1 Sauter flexotron 800 ventilation Manual P100012082 ...

Страница 2: ... described in this document is supplied under licence and may be used or copied only in accordance with the terms of the licence No part of this document may be reproduced or transmitted in any form in any fashion electronically or mechanically without the express written permission of Fr Sauter AG TRADEMARKS flexotron is a registered trademarks of Fr Sauter AG Windows Windows 2000 Windows XP and ...

Страница 3: ...ge 15 3 4 Wiring diagram RDT828 22 3 5 Wiring diagram RDT828 23 3 6 Wiring diagram RDT815 24 3 7 Wiring diagram RDT815 25 3 8 Wiring diagram RDT808 26 3 9 Empty wiring diagram RDT828 27 3 10 Empty wiring diagram RDT815 28 3 11 Empty wiring diagram RDT808 28 4 Commissioning 29 4 1 General 29 4 2 How to do it 29 5 Functional description 31 5 1 Temperature control 31 5 2 Extra control circuit 44 5 3 ...

Страница 4: ... Change password to remove automatic logoff 59 9 Running mode 60 9 1 Running mode unit 60 9 2 Selected functions 60 9 3 Alarm events 61 9 4 Inputs Outputs 61 10 Temperature 62 11 Air control 65 12 Humidity control 67 13 Time settings 68 13 1 Time Date 68 13 2 Timer Normal speed 69 13 3 Timer Reduced speed 69 13 4 Extended running 70 13 5 Timer outputs 1 5 70 13 6 Holidays 70 14 Manual Auto 71 15 S...

Страница 5: ...ol 88 16 12 CO2 VOC Demand control 88 16 13 Fire function 88 16 14 Humidity control 89 16 15 Exchanger de icing 89 16 16 Cooling recovery 89 16 17 Minimum limit dampers 89 16 18 Enthalpy control 90 16 19 External setpoint 90 16 20 Run indication Motor protection 90 16 21 Actuator type 91 16 22 Running time 3 position actuators 92 16 23 Step controllers 92 16 24 Recirculation 94 16 25 Pretreatment ...

Страница 6: ...012082 6 18 1 Alarm handling 110 18 2 Free text 110 18 3 Revision number 110 18 4 Language 110 18 5 Indication LEDs 111 18 6 Changing the battery 112 18 7 Start up wizard 113 18 8 Menu structure 115 Index 117 19 Appendix I 120 19 1 Frequency converters 120 ...

Страница 7: ...ctions for software version 3 1 More information More information about flexotron 800 can be found in Manual SAUTER CASE flexotron Manual of how to configure the controllers using the PC software SAUTER CASE flexotron Network variables Modbus Variable list for Modbus communication CE Declaration of conformity flexotron 800 The information is available for download from Fr Sauter AG website http ww...

Страница 8: ...rst press OK to set the date and time Use the up and down arrows to change values and the right and left arrows to move between fields When the date has been set press OK and the cursor will move to the scheduler Set the time in the same way as the date and press OK to confirm Press down arrow to go to Application choices Confirm your selection with the Right button Ventilation Expansion Unit 1 Ex...

Страница 9: ... other things the following functions Different temperature control modes Supply air temperature control with or without outdoor temperature compensation Room temperature control cascade controller Extract air temperature control cascade controller Seasonal switching between supply air temperature control and room extract air temperature control Extra separate temperature control circuit for after...

Страница 10: ... depending on the result of the enthalpy calculation Cooling recovery If the extract air is colder than the outdoor air and cooling is required the heat exchanger control is reversed in order to return the cool extract air This function also activates the heating function Free heating see section titled Free heating below Free heating If the extract air is cooler than the outdoor air and heating i...

Страница 11: ... WEB TCP IP No No No Yes No No Yes Display Yes No Yes Yes No Yes Yes Ext display No Option No No Option No No Communication port RS485 is not available for variants with WEB TCP IP However a 2 port flexotron 800 with TCP IP and RS485 can be selected by request where the RS485 port is used for expansion controllers etc 2 5 flexotron 800 model overview Model with display Model without display Descri...

Страница 12: ...ons according to IEC 721 3 2 Class 2k3 Ambient temperature 20 70 C Ambient humidity Max 95 RH Mechanical requirements according to IEC721 3 2 Class 2M2 Vibration IEC60068 2 6 Test FC vibration Sinusoidal Shock IEC60068 2 27 Test Ea Free fall IEC60068 2 27 Test Ed Storage Climatic conditions according to IEC 721 3 1 Class 1k3 Ambient temperature 20 70 C Ambient humidity Max 95 RH Battery Type Repla...

Страница 13: ...rcuit protected Digital outputs DO Mosfet outputs 24 V AC DC 2 A continuous not short circuit protected totally max 8 A Options WEB TCP IP port Replaces the RS485 Port 1 2 port flexotron 800 models Two serial ports or one serial port and one TCP IP port External hand terminal RDB800 For use with flexotron 800 units without display Position of the terminals on flexotron 800 ...

Страница 14: ...tion The controller flexotron 800 can be mounted in a DIN standard casing minimum 9 modules on a DIN rail in a cabinet or using a suitable front mounting kit in a cabinet door or other control panel Ambient temperature 0 50 C Humidity Max 95 RH non condensing The picture below shows a wiring example for RDT828 ...

Страница 15: ... which inputs and outputs you will need to configure Analogue inputs Analogue inputs must refer to an protective earth terminal placed in the same terminal block as the input being wired Analogue inputs can depending on the configuration be used for either Ni1000 temperature sensors or for 0 10 V DC analogue input signals for example from a pressure transmitter Digital inputs Digital inputs must r...

Страница 16: ...o so will prevent the equipment from functioning as intended and may also lead to damages Digital outputs Digital outputs should normally refer on terminal 42 LS Terminal 42 LS is internally connected on terminal LS and supplies 24 V or 24 V depending on the choice of supply voltage All the digital outputs are controlled by MOSFET transistors The outputs are internally connected with LS and can de...

Страница 17: ...l the middle column displays the name of the corresponding signal in CASE flexotron and the right column shows the text displayed in the flexotron 800 controller Analogue input signal Description CASE flexotron Display Outdoor temperature sensor Outdoor Temp Outdoortemp Supply air temperature sensor Supply Air Temp Supplytemp Extract air temperature sensor Extract Air Temp Extracttemp Exhaust air ...

Страница 18: ...y air 2 SAF Pressure 2 SAF pressure 2 Intake temperature Intake Temp Intaketemp Extra temperature sensor 1 Extra Sensor Temp 1 Extrasensor Extra temperature sensor 2 Extra Sensor Temp 2 Extrasensor 2 Extra temperature sensor 3 Extra Sensor Temp 3 Extrasensor 3 Extra temperature sensor 4 Extra Sensor Temp 4 Extrasensor 4 Extra temperature sensor 5 Extra Sensor Temp 5 Extrasensor 5 Extra pressure tr...

Страница 19: ...gh temperature limit switch Overheated Electric heater Overheatprote ction Recirculation start Recirculation Recirculation Change over Change over Change over The universal inputs on RDT828 can individually be configured as either analogue inputs using any of the analogue input signals above or as digital inputs using any of the digital inputs above Analogue output signal Description CASE flexotro...

Страница 20: ... converter SAF Freq Start SAF frequence Activation signal EAF frequency converter EAF Freq Start EAF frequence Activate heating Heating Activate Heat start Activate cooling Cooling Activate Cool start Activate exchanger Exchanger Activate Exch start Exhaust air close off damper Exhaust Air Damper Exhaust air d Fresh air close off damper Outdoor Air Damper Fresh air dam Recirculation damper Recircu...

Страница 21: ...ime channel 2 Time Channel 2 Timer 2 Extra time channel 3 Time Channel 3 Timer 3 Extra time channel 4 Time Channel 4 Timer 4 Extra time channel 5 Time Channel 5 Timer 5 Humidity Humidity DeHumidity Humidity External controller active Extra unit active ExtraUnitActi Heating cooling step 1 Heat cool step 1 HeatCoolStep 1 Heating cooling step 2 Heat cool step 2 HeatCoolStep 2 Heating cooling step 3 H...

Страница 22: ...DO5 Cooling demand 10 DI2 Frost protection facility 36 DO6 Not used 11 DI3 Supply air fan on 35 DO7 Not used 12 DI4 Anti icing function 13 DI5 Heating coil pump on 34 Reference potential for analogue inputs AI 14 DI6 Filter monitor 33 AI1 Outside temperature 15 DI7 Not used 32 AI2 Supply air temperature 16 DI8 Return air fan on 31 Reference potential for analogue inputs AI 30 AI3 Frost protection ...

Страница 23: ... Frost protection facility 36 DO6 Heat demand 11 DI3 Supply air fan on 35 DO7 Not used 12 DI4 Not used 13 DI5 Heating coil pump on 34 Reference potential for analogue inputs AI 14 DI6 Filter monitor 33 AI1 Outside temperature 15 DI7 Not used 32 AI2 Supply air temperature 16 DI8 Return air fan 31 Reference potential for analogue inputs AI 30 AI3 Frost protection sensor 17 Reference potential for an...

Страница 24: ...puts DO 41 DO1 Heating coil pump 40 DO2 Supply air fan level 1 39 DO3 Supply air fan level 2 38 DO4 Collective alarm 9 DI1 External OFF switch 10 DI2 Frost protection facility 34 Reference potential for analogue inputs AI 11 DI3 Supply air fan on 33 AI1 Outside temperature sensor 12 DI4 Anti icing function 32 AI2 Sensor for supply air temperature 31 Reference potential for analogue inputs AI 17 Re...

Страница 25: ... DO 41 DO1 Heating coil pump 40 DO2 Supply air fan level 1 39 DO3 Supply air fan level 2 38 DO4 Collective alarm 9 DI1 External OFF switch 10 DI2 Frost protection facility 34 Reference potential for analogue inputs AI 11 DI3 Supply air fan on 33 AI1 Outside temperature sensor 12 DI4 Anti icing function 32 AI2 Sensor for supply air temperature 31 Reference potential for analogue inputs AI 17 Refere...

Страница 26: ...s MM 2 D Earth conductor 3 C 24 V 24 V DC Reference point for digital inputs DI 4 E 42 LS Reference point for digital outputs DO 41 DO1 Heating coil pump 40 DO2 Supply air fan level 2 34 Reference potential for analogue inputs AI 9 DI1 External OFF switch 33 AI1 Outside temperature sensor 10 DI2 Frost protection facility 32 AI2 Sensor for supply air temperature 11 DI3 Supply air fan on 17 Referenc...

Страница 27: ... E 42 LS Reference point for digital outputs DO 41 DO1 40 DO2 39 DO3 38 DO4 9 DI1 37 DO5 10 DI2 36 DO6 11 DI3 35 DO7 12 DI4 13 DI5 34 Reference potential for analogue inputs AI 14 DI6 33 AI1 15 DI7 32 AI2 16 DI8 31 Reference potential for analogue inputs AI 30 AI3 17 Reference potential for analogue outputs AO 29 AI4 18 AO1 19 AO2 28 Reference potential for universal inputs UI 20 AO3 27 UI1 21 AO4...

Страница 28: ...rence potential for analogue inputs AI 11 DI3 33 AI1 12 DI4 32 AI2 31 Reference potential for analogue inputs AI 17 Reference potential for analogue outputs AO 30 AI3 18 AO1 29 AI4 19 AO2 20 AO3 3 11 Empty wiring diagram RDT808 LS Supply voltage 24 V AC or 24 V DC 15 50 60 Hz 1 D RS485 Modbus not in WEB TCP IP models MM 2 D Protective earth 3 C 24 V 24 V DC Reference for digital inputs DI 4 E 42 L...

Страница 29: ... chapter 7 and 8 Display LEDs and buttons and Access rights After learning how to use the buttons and menu system connect power to your controller log on as Admin and go to the menu Configuration For the time being skip the configuration menu In Outputs and start by configuring control functions Run through the configuration menus in order and set whatever functions and parameters you wish to incl...

Страница 30: ... go through the configuration menus covering the functions you wish to use On delivery the units already have the inputs and outputs assigned to various functions These can of course be changed In chapter 3 Installation and wiring there are two sets of wiring diagrams one set showing the pre configured input output configuration and one set where you can fill your own configuration choices Setting...

Страница 31: ...r temperature setpoint Mode five and six vary according to the outdoor temperature Supply air control in winter and cascaded room control or cascaded extract air control in summer In applications with mixing dampers instead of heat exchanger the signal for the damper control will be reversed compared to the signal for heat exchanger control i e decreasing signal on increasing heat demand This is d...

Страница 32: ...w are active Alarm for control offset of the supply air temperature is active 2 Outdoor temperature compensated supply air control The supply air temperature setpoint is outdoor temperature compensated using a control curve with 6 node points The supply air temperature is kept at the setpoint value by controlling the output signals for Y1 Heating Y2 Heat exchanger Y3 Cooling and Y4 Extra sequence ...

Страница 33: ...mpensated supply air temperature control will be active otherwise summer cascaded room temperature control 6 Outdoor temperature dependent switching between supply air temperature control and extract air temperature control When the outdoor temperature is lower than a settable limit winter outdoor compensated supply air temperature control will be active otherwise summer cascaded room temperature ...

Страница 34: ...ature falls below Alarm level Prop Band in order to reach 100 output when the signal has fallen to Alarm level When Internal signal reaches 100 or the digital input Frost protection is activated the unit is shut down the heating output is set to completely open mode and an alarm is activated The unit is restarted when the alarm has been acknowledged and the temperature for the frost protection sen...

Страница 35: ...olled by Y1 Heating and the electric heating is controlled by the sequence Split Split see the section Split of optional temp sequence must always be set to Heating On increasing heat demand the water heating is first activated and then if needed the electric heating Frost protection and overheating protection are both active If step controller heating is used the function is tied to the output si...

Страница 36: ...ating exchanger Control Rotational speed is controlled by the analogue signal Y2 Heat exchanger or by two digital outputs Exchanger 3 pos actuator increase and Exchanger 3 pos actuator decrease A rotation sentinel can be connected to the digital input Rotation sentinel Exchanger An alarm is generated if this input is activated at the same time as the analogue output signal is higher than 1 0V Liqu...

Страница 37: ... changed in CASE flexotron Minimum limit An outdoor air minimum limit for can be set using the front panel The limit value is settable between 0 and 100 In and outputs Plate Rotating Exch Liquid Dampers AI AI AI AI Outdoor temp sensor optional outd temp start DO DO DO DO Activate exchanger optional outd temp start AI AI De icing sensor optional DI DI De icing signal optional DI Rotation sentinel o...

Страница 38: ... heating steps is eight Step controllers and Change over The digital output signals Heating cooling step 1 Heating cooling step 2 and Heating cooling step 3 are used for step controllers during Change over control see section 5 1 12 They have the same functions as other step controller outputs but are set to either heating or cooling depending on whether heating or cooling is required DX cooling w...

Страница 39: ...mperature DX cooling can be blocked when the outdoor temperature is low It is possible to block the three cooling steps individually or to block all DX cooling The temperature limits are adjustable 13 C default and have a fixed one degree hysteresis When two DX cooling steps are used with binary function the cooling effect is divided into three steps The desired blocking level can be set individua...

Страница 40: ...cannot be changed To change the values temporarily configure room control change the min and max values and then change back to supply air control Support control can also be configured to start only with the supply air fan In this mode the extract air fan is not active This requires a digital output to be configured which controls the recirculation damper to open completely so the supply air fan ...

Страница 41: ... extract air sensor reflects the corresponding room temperature and that the outdoor temperature sensor senses the outdoor temperature even if it is placed in the fresh air inlet duct If the outdoor sensor is not located in the fresh air inlet duct and a room sensor is selected the unit will not start free cooling as long as all the temperatures are not within the start and stop temperature interv...

Страница 42: ...ven in energy per kilogram air kJ kg If enthalpy control is configured the enthalpy is calculated both indoors and outdoors If the enthalpy is higher outdoors than indoors the recirculation damper will be overridden to increase the recirculation The function is not active when using free cooling in this case outdoor air is used for cooling the room instead For the enthalpy calculation to be made f...

Страница 43: ...ith temperature control Only heating only cooling or both heating and cooling Recirculation control has its own setpoint However the other settings are the same as for normal operation i e if normal operation has been configured as room control room control will also be used during recirculation The recirculation setpoint can be configured as constant or offset Constant means that the recirculatio...

Страница 44: ...e sensor error alarms 5 1 14 Extra flow sensors supply air and extract air The input signals Extra SAF Pressure and Extra EAF Pressure can be used to display the flow in the supply air and extract air ducts The K and X constants for each fan are used to calculate the flow 5 2 Extra control circuit An independent temperature control circuit for control of for example after heaters The circuit can b...

Страница 45: ...can be 1 speed 2 speed or variable speed via a frequency converter 1 speed fans are controlled using the digital outputs Start SAF Normal and Start EAF Normal 2 speed fans are controlled using the digital outputs Start SAF Normal and Start EAF Normal as well as Start SAF reduced and Start EAF reduced giving normal and reduced speed respectively Variable speed control uses an analogue output per fa...

Страница 46: ...and Extended Operation Reduced Outdoor compensation When running pressure control it is also possible to outdoor compensate the pressure setpoint value The outdoor compensation is linear and is set using two parameter pairs which give the value of the compensation at two different outdoor temperatures The compensation can be positive or negative The outdoor compensation is set in the menu Actual S...

Страница 47: ...ignal controls the fans 0 100 0 10 V on the analogue output Pressure transmitters are not used in this control mode Frequency control SAF with EAF slave The rotational speed of the supply air fan is controlled by a pressure transmitter which is placed in the supply air duct The extract air fan does not have a pressure transmitter instead you let the output for the extract air fan follow the contro...

Страница 48: ...equency converter EAF 5 4 2 Demand controlled ventilation In applications with varying occupancy the fan speeds or mixing dampers can be controlled by the air quality as measured by a CO2 VOC sensor You can choose to activate the function 1 Always 2 Only when the running mode is On 3 Only when the running mode is Off When the function is activated and combined with pressure controlled fans and the...

Страница 49: ...When used with 2 speed fans they will start using reduced speed when the CO2 VOC value rises above control value one and switch to normal speed when the CO2 VOC value reaches control value two The fans will stop when the CO2 VOC value falls 160 ppm below control value one ...

Страница 50: ...s a settable stop delay The pump will be exercised once daily at 3 p m for one minute or the set shortest running time whichever is the longest 5 5 2 Exchanger circuit liquid connected exchangers The circulation pump for the exchanger circuit will run when the output to the exchanger valve is larger than 0V The pump has a settable shortest running time The pump will be exercised once daily at 3 p ...

Страница 51: ...t Fire dampers will be activated and the dampers will begin to move Within the set time 90 sec the signal on Fire damper end switch monitoring must change to indicate that the dampers have left their normal positions If not an alarm will be triggered Then within the set time Fire damper end switch monitoring must change again to indicate that all the dampers have reached the other end position If ...

Страница 52: ... DO Extra time channel 3 DO Extra time channel 4 DO Extra time channel 5 5 9 Alarms Alarm handling Alarms are indicated by the red alarm LED or on the front of the external display All alarms can be monitored acknowledged and blocked using the display and buttons Alarm priorities Alarms can be given different priority levels A alarm B alarm C alarm or not active Digital outputs can be bound to act...

Страница 53: ... extra stop function should also be set to Inactive or unexpected malfunctions may occur Alarm text The alarm text that should be shown in the display when there is an alarm can be changed using CASE flexotron For more information see the CASE flexotron manual In and outputs DO Sum alarm A B DO Sum alarm A DO Sum alarm B ...

Страница 54: ...m 4 If the unit has electric heating and the supply fan flow switch alarm or the high temperature limit alarm is activated 5 Activation of external switch 6 The unit is stopped manually using the flexotron 800 front panel 7 Support control is activated and the present room temperature is higher lower than the pre set stop value support heating cooling 8 Demand controlled ventilation is activated a...

Страница 55: ...rding to the following sequence 1 Deactivation of the alarm handling system 2 Electric heating if configured is shut down 3 After individually set delay times the fans are stopped 4 Outdoor air and exhaust air dampers are shut down 5 Actuator signals are set to zero and the pumps are stopped 6 If shutdown mode is configured it will be activated In order to maintain an acceptable supply air tempera...

Страница 56: ...will be called Up Down Right and Left The menus in the flexotron 800 are organized in a horizontal tree structure The Up and Down buttons are used to move between menus at the present menu level The Right and Left buttons are used to move between menu levels When changing parameters the Up and Down buttons are used to increase decrease the value of the parameter and the Right and Left buttons to m...

Страница 57: ...parameters To enter a higher menu level use Up or Down to place the display marker opposite the menu you wish to access and press Right At each level there may be several new menus through which you may move using the Up and Down buttons Sometimes there are further submenus linked to a menu or menu item This is indicated by an arrow symbol at the right hand edge of the display To choose one use Ri...

Страница 58: ... password 8 1 Log on Log on Enter password Present level Normal In this menu it is possible to log on to any access level by entering the appropriate 4 digit code The log on menu will also be displayed should you try to gain access to a menu or try to do an operation requiring higher authority than you have Press the OK button and a cursor marker will appear at the first digit position Repeatedly ...

Страница 59: ...rator New password Do not set the password for Admin to the same value as the password for a lower level since this will prevent access to the Admin level Forgotten your password If the password for Admin has been changed and then lost a temporary password can be obtained from SAUTER This code is date dependent and only valid for one day 8 4 Change password to remove automatic logoff If you want t...

Страница 60: ... Input Output 9 1 Running mode unit The unit s running mode can be changed without logging on Running mode Auto Running time SAF 14 6 h Running time EAF 14 6 h 9 2 Selected functions Shows the present configuration These are read only menus No changes can be made here Control function Supply air control Fan control 1 speed Heating Water Exchanger Plate exc Cooling Water Free cool active No Support...

Страница 61: ...v 14 32 B Malf SAF Acknowledged 9 4 Inputs Outputs This is a read only menu block showing the present values for all configured inputs and outputs If correction factors have been applied to input values the corrected values will be shown This is a read only menu No changes can be made here AI DI UI AO DO Analogue inputs and digital outputs are shown here as examples Analogue inputs AI1 18 5 Outdoo...

Страница 62: ...Act 19 8 C Setp Setp 20 0 C Submenu Setpoint curve In control modes five and six the setpoint relationship is used when supply air control is active Use the eight breakpoints to generate a setpoint outdoor temperature relationship Outdoor comp setp 20 0 C 25 0 C 15 0 C 24 0 C 10 0 C 23 0 C Outdoor comp setp 5 0 C 23 0 C 0 0 C 22 0 C 5 0 C 20 0 C Outdoor comp setp 10 0 C 18 0 C 15 0 C 18 0 C In bet...

Страница 63: ...p 2 Actual 21 8 C Setpoint Control mode 4 and 6 Cascade connected extract air temperature control Extract air temp Actual 21 0 C Setpoint 21 1 C In control mode six the setpoint is used when cascade connected extract air control is active Submenu for setting the min and max limitation temperatures for the supply air If cascade control max min supply setp Max 30 0 C Min 12 0 C Support control heati...

Страница 64: ...nt during normal operation If pressure control has been configured the offset is set in Pa If flow control has been configured it is set in m 3 h If manual control has been configured the offset is set in percent Extra control circuit See 5 2 Extra control circuit Actual 21 2 C Setpoint 20 0 C Enthalpy control Enthalpy indoor 33 8 KJ Kg Enthalpy outdoor 35 0 KJ Kg Submenus Outdoortemp Act 12 8 C H...

Страница 65: ...ing this function so the pressure does not become too low or even negative when running reduced speed Depending on the choice of fan control different combinations of the menus below will be shown Pressure control SAF There are corresponding menus for EAF Pressure contr SAF Actual 480 Pa Setp 490 Pa Submenu Setpoint Pressure contr SAF Setp 1 1 490 Pa Setp 1 2 300 Pa Submenu Outdoor compensation Ou...

Страница 66: ... frequency control SAF There are corresponding menus for EAF Frequency control manual SAF Output 75 Submenu Setpoint Frequency control manual SAF Output 1 1 75 Output 1 2 50 Submenu Outdoor compensation Outdoor comp outp 20 C 0 10 C 0 Act Comp 0 Submenu Extra compensation curve Comp sens Roomtemp1 15 C 0 20 C 0 25 C 0 CO2 VCO CO2 Actual 920ppm Setp 850pm ...

Страница 67: ...on Two humidity sensors can be connected a room sensor for control and an optional duct sensor for maximum limiting The limit sensor can be omitted The humidity control is handled by a PI controller The humidity sensors must give 0 10 V DC for 0 100 RH Humidity sensor room Humidity room Actual 51 9 RH Setp 50 0 RH Humidity sensor duct Humidity duct Actual 72 2 RH Max limit 80 0 RH Hyst 20 0 RH ...

Страница 68: ... has up to two individual running periods For two speed fans and pressure controlled fans there are daily individual schedules for normal speed and reduced speed each with up to two running periods Up to 5 digital outputs can be used as timer controlled outputs Each with individual week schedules with two activation periods per day These outputs can be used to control lighting doorlocks etc Time D...

Страница 69: ...09 00 the desired running time for both days must be entered Normal speed Monday Per 1 07 00 16 00 Per 2 22 00 24 00 Normal speed Tuesday Per 1 00 00 09 00 Per 2 00 00 00 00 13 3 Timer Reduced speed These settings will be ignored if single speed fans are configured Should periods for normal speed and periods for reduced speed overlap normal speed takes precedence There are eight separate setting m...

Страница 70: ...ctivation periods per day Each output has eight separate setting menus one for each weekday and one extra for holidays Holiday schedules take precedence over other schedules Only the time channels which have been configured i e have been wired to a digital output will be shown Timer output 2 Wednesday Per 1 05 30 08 00 Per 2 17 00 23 00 If the function Recirculation has been configured see 5 1 11 ...

Страница 71: ...the normal control an alarm will be generated as soon as any output is set to a manual mode Since the menus vary according to the configuration of the outputs only the most common ones will be shown here For the digital signals you can normally choose between Auto and On and Off or similar words indicating the two possible manual states of the digital output Manual Auto Supply air controller runni...

Страница 72: ...anual set 0 0 Humidification dehumidification Humidification Dehum idification Auto Manual set 0 Circulation pumps Heating Exchanger and Cooling P1 Heating Auto P1 Exchanger Auto Dampers Outdoor air Recirculation air Exhaust air and Fire dampers Outdoor air damper Auto Extra control circuit Extra ctrl unit Auto Manual set 0 0 Extra sequence Extra sequence Y4 Auto Manual set 0 0 ...

Страница 73: ... band for the supply air controller is for the whole controller signal This means that the P band for each sequence is proportionate to the split percentage values given to sequences For example P band for the supply air controller is set to 25 K The split is set so that cooling gets 0 20 20 the exchanger gets 30 50 20 and the heater gets 50 100 50 The individual P bands will then be Chiller 20 of...

Страница 74: ...ost protection alarm Yes Setp shutdown is the shutdown mode setpoint P band active 5 C means that the frost protection controller will start overriding the heating output when the frost protection temperature is less than five degrees above the set frost alarm limit The default alarm limit is 7 C It can be changed in the menu Settings Alarm settings Alarm limits Alarm limit frost protection Exchan...

Страница 75: ... time 60 sec Min Output 0 15 3 Control flow Flow control SAF Flow control SAF P band 1000 m3 h I time 60 sec Min Output 0 Flow control EAF Flow control EAF P band 1000 m3 h I time 60 sec Min Output 0 15 4 Humidity control Control humidity P band 100 0 RH I time 300 0 sec 15 5 Control Extra unit Control extra unit P band 33 0 C I time 100 0 sec 15 6 Alarm settings Alarm settings Alarm limits Alarm ...

Страница 76: ...h temp 30 0 C Low temp 10 0 C Alarm limits room Al lim room air High temp 30 0 C Low temp 10 0 C Alarm limit frost protection Alarm limit frost protection 7 0 C Alarm limit pressure Control dev SAF 40 0 Pa Control dev EAF 40 0 Pa Alarm limit Humidity Control deviation humidity 10 Alarm limit exchanger efficiency Low efficiency 50 0 Service alarm filter Service alarm Filter alarm Time until alarm A...

Страница 77: ... Frost risk 0 sec Alarm delay control SAF and EAF Alarm delay control dev pressure SAF 30 min EAF 30 min Alarm delay Humidity Alarm delay control deviation humidity 30 Min Alarm delay exchanger efficiency Low efficiency 30 min Alarm delay fan malfunction Alarm delay malfunc SAF 120 sec EAF 120 sec Alarm delay pump malfunction Alarm delay malfunc P1 Heating 5 sec P1 Cooling 5 sec P1 Exchan 20 sec A...

Страница 78: ...ent exch 20 sec 15 6 3 Restore alarm Service alarm filter alarm Time counter set to zero No 15 7 Save and restore settings Restore factory settings No Restore user settings No In this menu it is possible to restore all parameters to their factory settings or to the user settings they were saved as earlier see below Save user settings No The present configuration can be saved in a separate memory a...

Страница 79: ...ntrol Fire function Humidity control Exchanger de icing Cooling recovery Enthalpy control Min lim dampers External setpoint Run ind Motor prot Actuator type Actuator run time Step controllers Recirculation Pretreatment Alarm settings Communication Other parameters System 16 1 Inputs and outputs AI DI UI AO DO General Free configuration Any control signal can be bound to any in and output the only ...

Страница 80: ...owing formula New value old value filter factor raw value 1 filter factor 16 1 2 Digital inputs DI DI1 NO NC NO Signal Filter alarm 1 Status No To simplify adaptation to external functions all digital inputs can be configured to be either normally open NO or normally closed NC The inputs are as standard normally open i e if the input is closed the function connected to the input in flexotron 800 i...

Страница 81: ...puts are as standard normally open i e if the input is closed the function connected to the input in flexotron 800 is activated Be careful when changing the input from NO to NC since some digital functions can be configured to either NO or NC themselves For example you can choose if the Fire alarm input should be activated when it is closed or opened Therefore there is a risk that the signal is ch...

Страница 82: ...iled description of the control modes see section 5 1 1 Control modes In control modes five and six there is a submenu for setting of the change over outdoor temperature Outdoor temp for control mode change 13 C 16 3 Fan control Fan control 1 speed Choose between Single speed Two speed Pressure control Flow control Frequency manual fixed output Frequency external control SAF with EAF slave or SAF ...

Страница 83: ...low calculation factors for SAF and EAF and the CAV factor for EAF SAF flow control factors K constant 100 X constant 0 50 EAF flow control factors K constant 100 X constant 0 50 EAF CAV factor 1 00 For more detailed description see the section SAF with EAF flow control under 5 4 1 Pressure control Crosswise interlock between fans Crosswise interlock means that if one of the fans stops running the...

Страница 84: ...eating water The heater can be set to Water Electric Water Electric or Not used For detailed description of heater alternatives see section 5 1 2 Heater types 16 7 Exchanger Exchanger Rot Exch The heat exchanger unit can be set to one of the following alternatives Plate exchanger Rotating exchanger Liquid connected exchanger Mixing dampers Not connected Damper limiting for minimum outdoor air perc...

Страница 85: ...ng of min limit for supply air control on active DX cooling 5 0 C This parameter is also used for setting the lowering of the cooling setpoint when running DX cooling with exchanger control See 5 1 4 Blocking the DX cooling at low outdoor temp Outdoor temperature dependent blocking of DX cooling is individually settable for each cooling step If the outdoor temperature is below the set value it is ...

Страница 86: ...t as for blocking of DX cooling Force normal speed if active DX cooling Yes 16 9 Pump control P1 Heating P1 Exchanger P1 Cooling In these menus the parameters for pump control are set If for any of the control circuits no output is configured for pump control these settings will be ignored P1 Heating Pump stop Yes Stop delay 5 min Outd Temp stop 10 C Differential 1 0 C P1 Exchanger P1 Exchanger St...

Страница 87: ...tivation 22 0 C Outd Temp night High 18 0 C Low 10 0 C Room temp min 18 0 C Hour for start stop Free cooling Start 0 Stop 7 Time to block heat output after free cooling 60 min Fan output when free cooling SAF 0 EAF 0 Outdoor sensor placed in intake channel No For detailed description see section 5 1 6 Free cooling ...

Страница 88: ...re dampers are normally configured to open on fire alarm However via the display you can configure them to be normally open instead You can use CASE flexotron to configure the air handling unit s running mode on fire alarm The following choices are possible stopped continuous run run via normal start stop conditions only supply air fan in operation only extract air fan in operation There is a digi...

Страница 89: ...se settings are for the digital output Humidification Dehumidification Humidity control Humid Dehumidificat Start limit 15 Stop limit 5 For a detailed description see the section Humidity control 16 15 Exchanger de icing Exchanger de icing Yes De icing parameters Setp De icing 3 0 C Hysteresis 1 0 C Stoptemp SAF 10 0 C Min run time 5 min For detailed description of exchanger alternatives see secti...

Страница 90: ...tion Open input when the motor is running i e motor control output is activated will generate an alarm For supply air fans and extract air fans there is also a conflict alarm i e an alarm if the run indication input is closed even though the motor control output is not activated See alarm 33 Supply Air Fan external operation and alarm 34 Extract Air Fan external operation in the section Alarm conf...

Страница 91: ...the pressure transmitter and when the digital signal SAF Indication or EAF Indication is activated 16 21 Actuator type Choose output signals to the actuators connected to the analogue control outputs 0 10 V DC 2 10 V DC 10 0 V DC or 10 2 V DC Actuator type Y1 Heating 0 10V Y2 Exchan 0 10V Y3 Cooling 0 10V Actuator type SAF 0 10V EAF 0 10V Split 0 10V Actuator type Y6 Humidity 0 10V Extra unit 0 10...

Страница 92: ...6 23 1 Step controller heating Step controller heating can be set to sequential or binary Step contr heating Activation levels Binary steps Step controller Heating activation levels for sequential control For binary control the activation levels are calculated by the controller depending on the number of steps involved Start step 1 10 Stop step 1 5 Start step 2 45 Stop step 2 40 Start step 3 70 St...

Страница 93: ... is used in conjunction with pressure controlled or flow controlled fans it is possible to block DX cooling if the supply air fan control signal falls below a preset values The blocking level is individually settable for each DX cooling step At lower SAF output block step 1 0 block step 2 0 block step 3 0 For a more detailed description see section 5 1 4 Step controllers 16 23 3 Step controllers C...

Страница 94: ...itions for free cooling are fulfilled Use extra time group 5 to start recirculation No Recirculation is activated either via a digital input signal or by connecting it to Timer output 5 16 25 Pretreatment Control of dampers and pump for preheated or pre cooled outdoor air via an underground intake channel The digital output Pretreatment is set to preheating when the unit is started and the outdoor...

Страница 95: ...e outdoor temperature pretreatment will be blocked for 6 hours Then pretreatment will start if the outdoor temperature so permits and run for at least 5 minutes Outdoortemp for activating preheating 8 0 C precooling 19 0 C Minimum diff outdoortemp intaketemp 1 0 C ...

Страница 96: ... Heater B Malfunction pump Heating circuit 4 Run Error P1 Cooler B Malfunction pump Cooling circuit 5 Run Error P1 Exchanger B Malfunction pump Liquid connected exchanger 6 Filter guard B Filter guard pressure switch activated 7 Flow switch B Flow switch activated 8 External frost guard A External Frost protection thermostat activated 9 Deicing pressure guard Exchanger de icing pressure switch act...

Страница 97: ...Extract air pressure deviates too much from the setpoint for too long 33 Supply Air Fan external operation C SAF run signal received when unit is stopped 34 Extract Air Fan external operation C EAF run signal received when unit is stopped 35 Ventilation Manual mode C The unit is in manual mode 36 Manual supply air control C Supply air temp controller in manual control 37 Manual supply Air Fan mode...

Страница 98: ...0 Sensor error Humidity Room B Malfunction of connected sensor 61 Sensor error Humidity Duct B Malfunction of connected sensor 62 Sensor error Extra unit temp B Malfunction of connected sensor 63 Sensor error External control SAF B Malfunction of connected sensor 64 Sensor error External control EAF B Malfunction of connected sensor 65 Sensor error SAF Pressure 2 B Malfunction of connected sensor ...

Страница 99: ...munication error Expansion unit 1 C Communication problem with a controller connected to port2 82 Communication error Expansion unit 2 C Communication problem with a controller connected to port2 83 Warning Frequency converter SAF C Alarm from frequency converter via Modbus communication 84 Warning Frequency converter EAF C Alarm from frequency converter via Modbus communication 85 Output in manua...

Страница 100: ...equired Port two is then used for communication with the expansion units or frequency converters Slave For connection to CASE flexotron Function Port 2 Slave Master For future use Function Port 2 Master Modbus master For control of up to two Vacon NXL Lenze SMV Omron V1000 Emerson Commander frequency converters using Modbus communication Miscellaneous alarms and indications can be read from the fr...

Страница 101: ...the expansion units and setting the master controller all inputs and outputs are available for configuration in the master controller under Configuration Inputs Outputs the expansion controllers in outputs are named Exp1 Exp2 Ventilation Heating Boiler Expansion Unit 1 Expansion Unit 2 Expansion unit and Modbus master Frequency converters can be used in combination with expansion controllers on th...

Страница 102: ...hree different recipients You do not need an activation code to use this function The alarm message consists of an alarm text the unit name the same text that is shown in the first row of the start display and the time when the alarm occurred When there is an alarm the message is sent to the first number on the list If the recipient does not send an SMS within five minutes to confirm that the mess...

Страница 103: ...16 28 2 Retardation time When switching two speed fans from 1 1 speed to 1 2 speed there is a settable retardation time The same time applies to both fans Retardation time 1 1 1 2speed 10 sec 16 28 3 Heating at start up and high speed blocking At outdoor temperatures below the set value the heating output will be forced to 100 before start up Two speed fans and pressure controlled fans can be bloc...

Страница 104: ...output Heating Controller Output signal HCOut between the analogue temperature control output signals Y1 Y2 and Y3 for Heating Heat exchanger and Cooling To create a neutral zone leave a percentage gap between sequences The set P band for the supply air controller is for the whole controller signal This means that the P band for each sequence is proportionate to the split percentage values given t...

Страница 105: ...is always even 50 50 which means that each part of the split will have half the part of the P band assigned to the output An analogue output must be assigned to the output signal Split On increasing output demand the regular output is always run first and then the output that has been configured as Split Split optional temperature sequence Y1 Y2 Y3 No split 16 28 9 Fast stop on overheating If this...

Страница 106: ...rogram revision than the factory revision the controller will not allow language files to be downloaded from the application memory This is because there is a risk that the language files are not compatible with the new revision Therefore you are limited to the two languages you have downloaded using CASE flexotron 16 29 2 Choose start display the text normally shown on the display There are five ...

Страница 107: ...Automatic summer wintertime change over When flexotron 800 is set on automatic summertime wintertime change over the timer will automatically change between summertime and wintertime according to European standard Automatic summer winter time change over Yes 16 29 4 Address The flexotron 800 uses the addresses below when connecting to flexotron 800 tool and when multiple controllers are connected ...

Страница 108: ...the user will automatically be logged off to Normal after a settable time of inactivity The time is settable in units of 5 seconds Standard 60 units 5 minutes The automatic logoff can be removed see 8 4 Time before user automatically logged off 60 Unit 5 sec 16 29 7 Activation of start up wizard The start up wizard is a special program which at the first start up guides the operator through a numb...

Страница 109: ...since the display cannot be used or show anything However an external display is required when starting up slave controllers without display for the first time if the configuration is not done via CASE flexotron All configuration takes place either via CASE flexotron or via the display on the master controller All inputs and outputs can be viewed in the master controller For configuration of port ...

Страница 110: ...n the alarm list until the alarm input signal resets The LED is then lit Blocked alarms remain on the alarm list until the alarm has reset and the block has been removed New alarms of the same type will not be activated as long as the block remains Since blocking alarms can be potentially hazardous you need a high user access to block alarms Class A and B alarms will activate alarm output s if the...

Страница 111: ...ron 18 5 Indication LEDs Status indication can be found in the upper left corner of the controller For controllers with display the alarm indication and change mode LEDs are located in the keypad area Status indication Designation Colour Description Tx Green Port 1 Transmitting Rx Green Port 1 Receiving Serv Yellow Not in use LAN WEB models Yellow Green Green Connected to other network equipment B...

Страница 112: ...r at least 10 minutes after the power supply is removed Therefore if the battery replacement takes less than 10 minutes there will be no need to reload the program and the clock will continue to run normally The replacement battery must be of the type CR2032 Remove the cover by pressing down the locking torques at the edge of the cover using a small screwdriver and at the same time pulling the edg...

Страница 113: ...o log on In the first menu the language is chosen Choose language English In the second menu the setpoint is set The appearance of the menu depends on which control type has been configured Supply air temp Setp 18 C In the third menu time and date are set Time 14 27 Date 2008 11 25 Weekday Tuesday In the fourth menu the running time for normal speed Monday Friday is set Normal speed Monday Friday ...

Страница 114: ...on 800 ventilation Other functions P100012082 114 In the last menu you turn off the wizard and the flexotron 800 will switch to normal running mode The selected values will be used The wizard will not be shown again ...

Страница 115: ...ngg temperature Heat exchanging Recirculation Extra control circuit Entahalpy control Air control Pressure control Flow control Manual frequenzy contrl CO2 VCO Humidity control Humidity sensor room Humidity sensor duct Time settings Time Date Timer Normal Speed Timer Reduced Speed Extended running Manual Auto Settings Control temp Control pressure Control flow Control Humidity Control CO2 Control ...

Страница 116: ...otor prot Actuator type Actuator run time Step controllers Step controller heating Step controller cooling Recirculation Pretreatment Alarm settings Communication Other parameters Start and stop delay off and Retardation time Heating at start up and high speed blocking Start delay exchanger Exchanger to 100 at start Alarm delay at start Split controller signal Fast stop on alarm electric heating i...

Страница 117: ...e 92 Alarm setting 97 Battery type 84 85 Control function 83 Cooling control 86 Demand control 89 Exchanger de icing 90 External setpoint 91 Fan control 83 Fire dampers 89 Free cooling 88 Heat exchangers 85 Heater type 84 85 Humidity control 90 In and outputs 80 Objects 83 Other parameters 103 Pump control 87 Run indication Motor protection 91 Running time 3 position actuators 93 Step controllers ...

Страница 118: ...ardware overview 10 Heat exchanger Mixing dampers 37 Heat exchanger efficiency monitoring 42 64 Heat exchangers 36 Liquid connected exchanger 36 De icing 36 Outdoor temp control of exchangers 37 Plate exchanger 36 De icing 36 Rotating exchanger 36 Start condition 103 Holidays 71 Hot start 103 Humidity control 44 68 90 Setpoint 68 Settings 76 I In Outputs 61 Indication LEDs 111 Information screen 1...

Страница 119: ... Running mode 60 Running mode unit 60 Running time 3 position actuators 93 S Save and restore settings 79 Selected functions 60 Setpoint fan control 66 Setpoint humidity control 68 Setpoint external 43 91 Setpoints temperature 62 Settings 74 Shutdown mode 34 SMS 102 Split of optional temp sequence 105 Split settings 104 Start assistant 115 Start menu 106 Starting and stopping the unit 54 Start up ...

Страница 120: ...s set to 1 for 0 100 H5 03 0x427 Parity set to 0 no parity Default values should be used for remaining parameters The following values may not be changed H5 02 0x426 Communication speed default 3 9600 H5 04 0x428 Stopping method after communication error default 3 no stop H5 11 0x43C Communication Enter Function default 1 Enter command not necessary H5 12 0x43D Run command default 0 bit 0 forward ...

Страница 121: ...to 1 default for Supply air fan and 2 for Exhaust air fan 43 Baud rate 9 6 default 19 2 Default values should be used for remaining parameters Changing parameters Deactivate the unit The display should read iH 0 0 This is performed by opening terminal B4 Set parameter 10 to L3 i e all parameters up to and including 95 can then be altered Set parameter 43 to 9 6 9600 baud ...

Страница 122: ...Sauter flexotron 800 ventilation Appendix I P100012082 122 Printed in Switzerland Subject to change Fr Sauter AG CH 4016 Basel ...

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