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3.9 - Coils

The unit may contain two coils (hydraulic and/or electric).

These coils are configured using parameters P28, P29 and P32.

They may be a cooling coil, a heating coil or a mixed coil (heating or cooling according to the network temperature), or an electric heater.
If a coil is ducted, there is an internal supply air temperature sensor situated at the machine outlet, and an additional sensor situated

at the ducted coil outlet.

28

Coil 1

29

Coil 2

32

Electric heater

3.9.1 - Mixed coil scenario

In the case of a mixed coil, the changeover may be made either via an on/off input or via the CMS (settable via parameter P162).
The changeover thermostat must be fitted by the installer on the mixed coil inlet, at a point where water is in constant circulation.

The changeover status (heating or cooling mode) can be viewed via parameter P422.

162

Changeover selection

3.9.2 - Frost protection

The hydraulic coil frost protection is provided by monitoring the unit's supply air temperature. If this is below the threshold P248, the

frost protection fault is tripped and the isolation damper is closed, ventilation stops and the coil valves are opened 100%.

A frost prevention function is available once the unit is off (via the HMI, the CMS or a danger fault), or during the ventilation start-up

phase. It consists in leaving the hydraulic coil valve slightly open (settable value) to maintain water circulation (P260). This opening is

maintained constantly (including when the machine is shut down but still energised).

248

Hydraulic coil frost protection safety threshold

260

Opening percentage for the coil 1 valve when unit stopped

261

Opening percentage for the coil 2 valve when unit stopped

3.9.3 - Pumps

It is possible to control pumps (not supplied). They are actuated as soon as the coil valve opening demand is greater than 0%. Their

presence is indicated by parameters P92 and P93, and their status can be viewed in parameters P424 to P427

92

Coil no.1 pump

93

Coil no.2 pump

3.9.4 - External generator

It is possible to control an external heater or cooler (selected via parameter P90), which is activated when the associated coil control

is greater than 0%

90

External generator

3.9.5 - Electrical heater scenario

The control system is used to control an electric heater comprising 1 on/off stage or 2 on/off stages (3-stage control (stage 1,

then stage 2, then stages 1 and 2)) or 1 on/off + triac stage.

Electric heating requirement

Stage 1

Stage 2

Stage 1+2

0%

100%

33%

66%

A minimum air flow rate is required to use the electric heaters (P126). If the flow rate is below this parameter, the electric heater will not be

able to start up and the message "control limited" will appear. This flow rate depends on the size of the AHU.
If an on/off electric heater is installed, the temperature control must not be based on the supply air (P154).

3 - FEATURES

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Содержание 39HXC

Страница 1: ...C O N T R O L S M A N U A L Translation of the original document 39HXC 39HXE 39HXV ...

Страница 2: ...2 ...

Страница 3: ...ller and one LCD terminal 29 4 2 Several controllers and terminals 29 4 3 Electrical connections for the pLAN local area network 30 4 4 Addressing the pLAN 31 5 CONNECTING TO A CMS 35 5 1 Modbus RTU 35 5 2 Modbus TCP IP and BACnet IP 36 5 3 LON 39 5 4 KNX 42 6 COMMISSIONING 45 6 1 Actions required prior to commissioning 45 6 2 Test mode 45 6 3 Calibration 45 7 FAULTS 46 7 1 Type of faults 46 7 2 F...

Страница 4: ...g between several air handling units Simplified remote user control in the room to be conditioned This device is not designed to be used by persons including children with limited physical sensory or mental capabilities or by persons with insufficient experience or knowledge Only qualified personnel who have received in depth training in the equipment are authorised to work on the machine or modif...

Страница 5: ...d to a CMS so that it can be controlled remotely 2 2 Inputs outputs The PLC has analogue and on off inputs outputs The list of inputs outputs is described below depending on the options installed The controller is installed in the electrics box Input designation Type U Universal input analogue or on off GND C Shared DI Dry contact On Off input Y 0 10V analogue output Out Polarised 24 VAC On Off ou...

Страница 6: ... Y1 0 10V Hydraulic coil 1 valve control or electric heater triac control Y2 0 10V Hydraulic coil 2 valve control Y3 0 10V Intake fan control J7 DI1 Pump 1 fault DI2 Pump 2 fault DI3 Remote control DI4 Fire fault GND Shared J8 Not used J9 Vout Not used FBus1 Remote display connection in Th Tune room Tx Rx FBus1 Remote display connection in Th Tune room Tx Rx GND Remote display connection in Th Tun...

Страница 7: ...XE 39HXC 39HXV Supply air temperature sensor J2 U3 J2 U3 J2 U3 Return air temperature sensor J2 U2 J3 U4 J3 U4 Fresh air temperature sensor J3 U4 J2 U2 J2 U2 Intake fan pressure sensor J4 U7 J4 U7 J5 U9 Exhaust fan pressure sensor J5 U9 J5 U9 J4 U7 Intake filter fouling pressure sensor J4 U6 J5 U8 J5 U8 Exhaust filter fouling pressure sensor J5 U8 J4 U6 J4 U6 Customer terminals The following input...

Страница 8: ... the time schedule Icon Time schedule state No validated time schedule At least one time schedule is validated but not active At least one time schedule is validated and active U 01 Indicates the unit s address on the pLAN bus 15 30 Indicates the time 21 4 C Indicates the set temperature value room extraction or intake On Indicates the unit state Unit status Description Off The unit is off Off due...

Страница 9: ... animated if operation requested and active Indicates a Cooling request Indicates a Heating request Indicates the operation of the fan s Indicates the Air quality operating mode 2 3 2 Menus The user interface is organised according to the menus below certain menus are only accessible when the access level is 2 or 3 see 3 18 and when the option is present on the machine 1 Machine status 2 Setpoints...

Страница 10: ...nage the masks on the display previous mask 2 to go to the previous line in the menu 3 to adjust the values of the monitoring parameters increase Prg Switches the unit on Prg Switches the unit off Used to validate the data entered and go into a menu It is continuously backlit to indicate when the power is on 2 4 Touchscreen terminal The terminal supplied is equipped with a 4 3 touchscreen display ...

Страница 11: ...tive Control active Indicates the operating status Operating status Description Damper opening The isolation damper is in the process of opening Ventilation start up The ventilation is in the process of starting up Control active The control functions are active Control limited Certain control functions are not authorised E g flow rate insufficient for the electric heater operation Fan delay The A...

Страница 12: ...ts Link to the list of active faults 2 4 3 Menus Main menu Main menu Sub menu 1 Sub menu 2 Access level Information 1 Login 1 Setpoints Setpoints 1 1 Setpoints 2 1 Setpoint change 2 Setpoint compensation 2 Night cooling 2 Time program Weekly 1 1 Weekly 2 1 Weekly 3 1 Weekly 4 1 Weekly 5 1 Weekly 6 1 Annual 1 1 Annual 2 1 Annual 3 1 Annual 4 1 Annual 5 1 Annual 6 1 Faults Current fault 1 Log 1 Faul...

Страница 13: ...e cooling 2 Heat recovery unit 2 Communication 2 Temperature Temperature management 2 Temperature threshold 2 Temperature PID 2 Neutral zone limitation and compensation 2 Changeover 2 Frost protection 2 Input output management I O direction 2 Calibration 2 Prioritisation 2 Time del selections Time delays 2 EC fans 3 Emulation PGD 3 Service Fault memory full 3 Machine parameters 3 Parameters back u...

Страница 14: ...e will be displayed Access level Pressing on the padlock in the menu bar or main menu will access the access level selection The current level is displayed at the bottom of the screen To go back to level 1 you need to enter the password 1111 Pressing on the stars will bring up a numeric keypad to enter the password for the desired level Once a password has been entered is used to view the password...

Страница 15: ...Pressing brings up the curve settings zoom out on the vertical axis zoom out on the vertical axis zoom reset change horizontal axis duration save values to csv on USB stick level 3 2 THE CONTROL PLC 15 ...

Страница 16: ...pied Parameter P160 is used to choose between setpoints 1 and 2 either by time schedule or via the J5 U10 on off input as well as by the CMS control or override via the J5 U10 on off input In the latter mode if the On Off input indicates setpoint 1 mode it is operating in setpoint 1 otherwise the operation is as per the last order received from the CMS or time schedule Parameter P161 is used to se...

Страница 17: ...nt 3 6 Temperature control The set temperature may be The return air temperature The room temperature if the Th Tune room remote control is present The supply air temperature This choice is made via parameter P154 The temperature is set via a PID which calculates a heating requirement P395 or a cooling requirement P394 There is one heating setpoint P180 and one cooling setpoint P170 with the optio...

Страница 18: ...ld fault P240 100 0 Supply air temperature Supply air upper limit setpoint P231 Proportional band P232 Integral time P233 High threshold fault P241 100 0 Heating request limitation 156 Supply air limitation With or Without 230 Supply air temperature low limit setpoint 231 Supply air temperature upper limit setpoint 232 Supply air temperature limit proportional band 233 Supply air temperature limit...

Страница 19: ...perature upper limit threshold 242 Return air temperature low limit threshold 243 Return air temperature upper limit threshold 244 Room temperature low limit threshold 245 Room temperature upper limit threshold 3 7 Fan control The controller runs the plug fans with an EC motor The unit has one intake fan and one exhaust fan Pressure sensors for measuring the air flow rate are wired on the PLC The ...

Страница 20: ...ontrol PID proportional band P 139 Exhaust duct pressure control PID integration time I 140 Exhaust duct pressure control PID derivative time D 142 Exhaust duct pressure lower limit threshold 143 Exhaust duct pressure upper limit threshold Faults The pressure sensors installed on the fans are also used to detect the presence of the air flow threshold P111 The PLC triggers a fault if the flow rate ...

Страница 21: ...25 Heat recovery unit requirement Cooling 0 On Off None Off Off Heating 0 Off On Free cooling Night cooling Off Off 3 8 2 Heat recovery defrost Heat recovery unit frosting is monitored as standard via the fresh air temperature or optionally using a differential pressure sensor P37 37 Differential pressure sensor on the heat recovery unit With preheating coil There may be an electric heater to prev...

Страница 22: ...draulic coil valve slightly open settable value to maintain water circulation P260 This opening is maintained constantly including when the machine is shut down but still energised 248 Hydraulic coil frost protection safety threshold 260 Opening percentage for the coil 1 valve when unit stopped 261 Opening percentage for the coil 2 valve when unit stopped 3 9 3 Pumps It is possible to control pump...

Страница 23: ...It is important to configure a fresh air temperature low limit which is sufficiently high to ensure no discomfort is caused 150 Free cooling control 206 Free cooling and night cooling operating differential compared to the controlled temperature 207 Temperature low limit for free cooling and night cooling 3 11 Night cooling The regulated temperature must be the return or room air value The fans co...

Страница 24: ...the extraction fan is under duct pressure control In this scenario where the air intake fan is under duct pressure control the air quality sensor must be connected to terminal strip J26 U12 The control function only acts on the opening value of the mixing damper to allow a greater influx of fresh air 0 100 fresh air Mixing minimum opening percentage 1 2 IAQ requirement 100 152 Air quality control ...

Страница 25: ...e controller and at the end of the line between Th Tune terminals Tx and Tx see wiring diagram supplied with the machine Symbols Description mode Key has no effect Key has no effect This key is used to start or shut down the unit This knob has 2 functions Press used to alter the setpoint or parameter selected Rotation used to select a setpoint or parameter and modify it for more information see th...

Страница 26: ...oint being set Mode selecting setpoint 1 or 2 this choice is visible only if the setpoint 1 2 selection is controlled by time slot or CMS P160 1 CsgC heating temperature setpoint 1 value CsgF cooling temperature setpoint 1 value Cali room temperature sensor calibration limited to 3 C 149 Th Tune 3 15 Temperature setpoint compensation The temperature setpoint compensation function is used to adjust...

Страница 27: ...haust flow rate setpoint to be used for control purposes is the selected setpoint 1 or 2 multiplied by the downgrading percentage 271 Downgraded fresh air flow rate activation 271 1 Downgraded mode start fresh air temperature 271 2 Downgraded mode end fresh air temperature 271 3 min flow rate in downgraded mode 3 17 Time management The date and time are set using parameters P102 and P103 The date ...

Страница 28: ...Example of annual programming Annual programming between 15th October and 1st April the frost protection state will be active 3 19 Access level The PLC comprises 3 access levels which are used to prevent unauthorised persons from altering certain parameters Level 1 is the customer level It is freely accessible and is used to modify the setpoints Level 2 is the installer level It is protected by an...

Страница 29: ...ve to be performed on site Terminal address 32 Controller address 01 P01 Adr Priv Shared Trm1 32 Pr Trm2 None Sh Trm3 None OK 4 1 One controller and one LCD terminal The terminal addressing procedure is described in section 4 4 2 The procedure for the controller is in section 4 4 3 The controller and terminal must have different addresses The example above shows one addressing option 4 2 Several c...

Страница 30: ...connected in parallel using the J14 connector The first and last controller must be no more than 500 m apart 4 3 2 Connecting a remote screen to the pLAN The user can connect a user terminal to connector J15 up to a distance of 50m For a greater distance 2 TCONN boards and aAWG20 22 24 shielded cable comprising 2 twisted pairs and shielding must be used The shielded cable must be no longer than 20...

Страница 31: ...ess must be equal to 16 Please ensure the addressing diagram below is respected J14 J15 J14 J15 J14 J15 P01 Adr Priv Shared Trm1 17 Pr Trm2 16 Sh Trm3 None OK Terminal address 17 Terminal address 18 Terminal address 16 Terminal address 19 P02 Adr Priv Shared Trm1 18 Pr Trm2 16 Sh Trm3 None OK P01 Adr Priv Shared Trm1 16 Sh Trm2 None Trm3 None OK No P03 Adr Priv Shared Trm1 19 Pr Trm2 16 Sh Trm3 No...

Страница 32: ...e terminal s permanent memory Please note if you need to change the address of a controller using a terminal you may only do so with a terminal with the address 0 After having changed the controller address remember to change the terminal address from 0 to a different value to ensure normal operation 4 4 3 Modifying the controller addresses The value of the factory set address is 1 The controller ...

Страница 33: ...sing the button again will bring up the mask sequences here on the right Here too the button will move the cursor from field to field The buttons will change the value of the current field The P xx field shows the address of the selected controller In the example shown No 12 is selected In the case of a shared display for a set of units maximum 31 the terminal must be configured on each unit in Sh...

Страница 34: ...es 1 to 32 are displayed The small rectangles represent the terminals and the large rectangles the controllers If symbols appear then disappear the pLAN may be unstable or more likely two components share the same address The number after Term indicates the terminal address used The example shows that the network is made up of 3 controllers with the addresses 1 2 25 and 4 terminals with the addres...

Страница 35: ...ission speed on the BMS2 port 0 1200 1 2400 2 4800 3 9600 4 19200 712 Parity on the BMS2 port 0 without 1 odd 2 even 713 Number of stop bits on the BMS2 port 715 Selection of the controller address on the BMS2 bus 149 Control type 0 Local 1 Remote ModBus The cable must be a type AWG20 22 24 Filotex FMA 2P Belden ref 9842 9842NH 24AWG or equivalent shielded cable not supplied comprising a twisted p...

Страница 36: ...ssing the reset button After approximately 8 seconds the left hand LED status LED changes from green to red and then starts flashing At this point release the button Powered up Release the button Button pressed Button Button Approx 8 s Button released Red Green The board is now initialised to the address 172 16 0 1 You will now need to configure your PC to a fixed IP Procedure for Windows 7 Import...

Страница 37: ...with the mouse on the name of the network connection you wish to configure In the menu which appears select Properties Select the row Internet Protocol Version 4 TCP IPv4 Click the Properties button Enter the IP address 172 16 0 2 Subnet mask 255 255 0 0 Then confirm 5 CONNECTION TO A CMS 37 ...

Страница 38: ...u will now be connected to the web server For access the login is admin The password is fadmin Click in the Configuration menu and select the Network tab Complete this page with the information for your local network IP address Netmask Then in the pCO Com tab change the protocol to Modbus Extended and enter 200 digital variables 1550 analogue variables and 0 integer variables 5 CONNECTION TO A CMS...

Страница 39: ...fitted If this is not the case switch off the controller and insert the board in J13 entitled BMS card or BMS1 on the controller It may be recharged on site using the nxe file available on request 1 Connector for the controller 2 Disconnectable terminal for connection of the LonWorks network GND A B 3 Service pin create a temporary shunt between the 2 terminals to create a service PIN disconnect t...

Страница 40: ...of LON network X Definition of the bindings between LON controllers and with the BMS X Definition of BMS setpoints and time schedules X X Method to be defined jointly by the integrator and installer Considering the central role of the integrator it is essential that the latter is included in the project as early as possible so as to be able to anticipate and validate the BMS architectures integrat...

Страница 41: ...controllers to be created in the database as there are controllers present on the network The rest of the configuration creation of the bindings on the nvi nvo type datapoints is carried out normally as it would be for any other LON product Our PLC does not have any nci SCPT UCPT type datapoints The configuration parameters are only accessible from the HMI terminal 5 CONNECTION TO A CMS 41 ...

Страница 42: ...n protocol on the PLC adjust the following values in the Communication menu on the user terminal P700 Protocol KNX P716 Control type Local for KNX access to the read only datapoints Remote for KNX access to the read and write datapoints The manufacturer does not provide a system start up configuration parameter setting or KNX network addressing service The configuration of this type of network req...

Страница 43: ... ID Format KNX range Boolean DPT_Switch 1 xxx 1 bit Off On Unsigned 8 bit DPT_Value_1_Ucount 5 xxx Unsigned 8 bits 0 to 255 Unsigned 16 bits DPT_Value_2_Ucount 7 xxx Unsigned 16 bits 0 to 65535 Floating 16 bits DPT_KNX_Float 9 xxx Floating 16 bits 671 088 64 to 670 760 96 32 bit signed DPT_Value_4_Count 13 xxx 32 bit signed 2 147 483 648 to 2 147 483 647 The air handling unit PLC comes as standard...

Страница 44: ...The assignment of the individual address and the loading of the addresses and parameters are carried out as normal for any other KNX product 5 CONNECTION TO A CMS 44 ...

Страница 45: ...SAFETY DEVICES ARE OPERATIONAL To access test mode you first need to set P99 no so as to shut down the unit Then go to the test menu and set P3500 override validated yes Choose the output to force by setting on for the on off outputs or by setting the desired percentage for the analogue outputs Attention The last settings made in this menu remain in the memory after exiting test mode It is strongl...

Страница 46: ...4 Frost protection Danger 11 Intake EC motor Danger 31 Exhaust EC motor Danger 48 Intake air flow low limit Danger 49 Extraction air flow low limit Danger 52 Air intake filter 1 fouled Maintenance 53 Intake filter 1 blocked Danger 58 Exhaust filter 1 fouled Maintenance 59 Extraction filter 1 blocked Danger 62 Intake filter pressure sensor fault Danger 63 Exhaust filter pressure sensor fault Danger...

Страница 47: ...nnection Check the electrical connection and tightness of the connections Exhaust flow rate pressure sensor Heat recovery unit pressure sensor Rotary heat exchanger The rotary heat recovery unit indicates a fault The heat recovery unit controller has detected a fault Check the operation of the heat recovery unit and the condition of the belt Heat recovery frosted The pressure drops measurement for...

Страница 48: ...ecovery unit mixing box etc Operating problem with the cooling elements Check the operation of the valves heat recovery unit mixing box etc Return temperature too high The return temperature or room temperature is above the fixed limit P243 or P245 Temperature sensor operating problem Check the operation of the sensor Supply air temperature limits incorrectly configured Check the configuration Roo...

Страница 49: ... 4 5V 2 3 11 Number of EC air exhaust fans 1 or 2 as per P1 Visible as read only 3 12 Characteristics of the pressure sensor for the air extraction fan 1 0 1000 Pa 10V 2 0 2500 Pa 10V 3 0 5000 Pa 10V 4 0 1600 Pa 0 3 5V 5 0 1000 Pa 0 5 4 5V 6 0 3000 Pa 0 5 4 5V as per P1 Visible as read only 3 13 Coefficient value K for the exhaust fan as per P1 Visible as read only 3 15 Exhaust filter type 1 M5 2 ...

Страница 50: ...t pressure P104 Exhaust fan ventilation control Duct pressure and P37 Differential pressure sensor on heat recovery unit without 106 Multiplication factor value of the signal sent by the air extraction fan with pressure control in the supply air duct 1 P104 Intake ventilation control Duct pressure and P105 Exhaust fan control Control feedback or flow rate feedback 2 108 Damper opening time delay 1...

Страница 51: ... intake ventilation control Flow rate 1 129 Extraction fan flow rate setpoint 2 As per P1 m3 h P104 Intake ventilation control Flow rate and P160 Setpoint 1 setpoint 2 selection time sched CMS or on off input or on off override and P161 Application of setpoint 1 setpoint 2 selection ventilation or temperature ventilation 1 130 Air extraction fan flow rate control PID proportional band P 6000 m3 h ...

Страница 52: ...covery unit differential pressure sensor Without and P105 Exhaust ventilation control pressure 2 154 Target temperature selection 0 Supply air 1 P150 Free cooling control Without and P151 Night cooling control Without 2 1 Return 2 Ambient P149 Th Tune With 155 Temperature control mode selection 0 Automatic 1 Cooling only 2 Heating only 0 2 156 Supply air limitation 0 without 1 with 1 P154 Target t...

Страница 53: ...ht cooling 15 0 C P150 Free cooling control With or P151 Night cooling control With 2 208 Mixing damper minimum setpoint 1 80 P27 Mixing damper With 2 209 Mixing damper minimum setpoint 2 80 P27 Mixing damper With and P160 Setpoint 1 setpoint 2 selection time sched CMS or on off input or on off override and P161 Application of setpoint 1 setpoint 2 selection ventilation or temperature ventilation ...

Страница 54: ...237 High supply air temperature compensation proportional band in deadband 5 0 C P157 Supply air compensation in deadband 2 240 Supply air temperature low limit threshold 15 0 C 2 241 Supply air temperature upper limit threshold 35 0 C 2 242 Return air temperature low limit threshold 15 0 C P154 Target temperature selection return air 2 243 Return air temperature upper limit threshold 35 0 C P154 ...

Страница 55: ...n control Duct pressure and P105 Exhaust ventilation control Flow rate feedback 1 307 Air extraction fan flow rate 0 320000 10 m3 h 1 308 Extraction fan differential pressure 0 5000 1 Pa 1 310 Exhaust duct pressure calculated setpoint 0 5000 1 Pa P104 Intake ventilation control Duct pressure and P105 Exhaust ventilation control Duct pressure 1 311 Exhaust duct pressure 0 5000 1 Pa P104 Intake vent...

Страница 56: ...1 gradual stage 1 on off stage 1 362 Pump 1 monitoring 0 C closed 1 O open 0 1 1 P92 Coil 1 pump With 1 363 Pump 2 monitoring 0 C closed 1 O open 0 1 1 P93 Coil 2 pump With 1 370 Building side isolation damper 0 off 1 on 0 1 1 P26 Isolation damper Outdoor side building or Building side 1 371 Outdoor side isolation damper 0 off 1 on 0 1 1 P26 Isolation damper Outdoor side building or Outdoor side 1...

Страница 57: ...ump 1 0 off 1 on 0 1 1 P92 Coil 1 pump With 1 425 Pump 1 operating hour meter 0 999999 9 0 1 h P92 Coil 1 pump With 1 426 Pump 2 0 off 1 on 0 1 1 P93 Coil 2 pump With 1 427 Pump 2 operating hour meter 0 999999 9 0 1 h P93 Coil 2 pump With 1 430 External generator run order 0 off 1 on 0 1 1 P90 External generator heater or cooler 1 451 Heat recovery unit operating hour meter 0 999999 9 0 1 h P36 He...

Страница 58: ... Danger 0 P146 Target temperature selection room 2 625 Room temperature too high 0 Maintenance 1 Danger 0 P146 Target temperature selection room 2 628 supply air duct pressure too low 0 Maintenance 1 Danger 0 P104 Air intake ventilation control Duct pressure 2 629 supply air duct pressure too high 0 Maintenance 1 Danger 0 P104 Air intake ventilation control Duct pressure 2 632 Loss of communicatio...

Страница 59: ...ibration No Description Setting Unit Display conditions Access level Min Max 800 Calibration of the air intake fan flow rate sensor 3 801 Calibration of the air extraction fan flow rate sensor 3 802 Intake duct pressure sensor calibration P104 Air intake ventilation control Duct pressure 3 803 Exhaust duct pressure sensor calibration P104 Intake ventilation control Duct pressure and P105 Exhaust v...

Страница 60: ...ly Open 1 Normally Closed 3 863 Wheel heat recovery unit control input direction 0 Normally Open 1 Normally Closed P36 Heat recovery unit Gradual speed heat recovery unit 3 872 Electric heater manual safety input direction 0 Normally Open 1 Normally Closed P32 Electric heater 1 on off stage or 2 on off stages or 1 gradual stage or 1 gradual stage and 1 on off stage or P31 Electric preheater with 3...

Страница 61: ...ng or Mixed 2 927 Hydraulic coil 2 operation end heating percentage P926 100 1 P29 Water coil no 2 Heating or Mixed 2 930 Electric heater operation start heating percentage 0 P931 1 P32 Electric heater 1 on off stage or 2 on off stages or 1 gradual stage or 1 gradual stage and 1 on off stage 2 931 Electric heater operation end heating percentage P930 100 1 P32 Electric heater 1 on off stage or 2 o...

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Страница 63: ...63 ...

Страница 64: ... EN7565708 02 01 2021 Supersedes order No EN7565708 01 10 2020 Manufacturer CIAT SA Culoz France Manufacturer reserves the right to change any product specifications without notice Printed in the European Union ...

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