CLIMAVENETA W3000 compact Скачать руководство пользователя страница 95

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C0240111-04-05-GB

“E” expansion for hermetic compressors. Units with more than 4 compressors.

Expansion "E" – address 4

Digital inputs

ID1

Compressor 5 thermal protection

ID1

ID2

Compressor 6 thermal protection

ID2

ID3

Compressor 7 thermal protection

ID3

ID4

Compressor 8 thermal protection

ID4

ID5
ID6

Analogue inputs

ID7

Step 5

ID8

Step 6

ID9

Step 7

ID10

Step 8

ID11
ID12

Digital outputs

ID13

Compressor 5

NO1

ID14

Compressor 6

NO2

ID15

Compressor 7

NO3

ID16

Compressor 8

NO4

ID17
ID18

Analogue outputs

Analogue inputs

B1
B2
B3
B4
B5
B6
B7
B8
B9
B10

Digital outputs

NO1
NO2
NO3
NO4
NO5
NO6
NO7
NO8

NO10
NO11
NO12
NO13
NO14
NO15

NO17
NO18

Analogue outputs

Y1
Y2
Y3

Y5
Y6

NO9

NO16

Содержание W3000 compact

Страница 1: ...36061 Bassano del Grappa VI ITALY G B Tel 39 0424 509 500 Fax 39 0424 509 509 www climaveneta it info climaveneta it The information contained in this document may be modified without prior notice No...

Страница 2: ...1 5 3 SETPOINT MENU 33 5 4 CLOCK MENU 33 6 MANUFACTURER PROGRAMMING 34 6 1 FREECOOLING 35 6 2 CONDENSATION 36 7 ALARMS 38 ANNEX 1A TABLE OF W3000 MASKS 43 ANNEX 1B TABLE OF W3000 BASE MASKS 63 ANNEX 1...

Страница 3: ...ays the alarms and resets normal operating conditions SETPOINT key directly accesses the setpoint menu ON OFF key switches the machine on and off For each compressor the following LED s are also locat...

Страница 4: ...n p Esc n p Thermoregulator Menu key Unit menu selection Setpoint menu selection I O menu selection Clock menu selection User menu selection Manufacturer menu selection User Password Factory Password...

Страница 5: ...e analogue inputs It also shows the status of the digital outputs and the voltage supplied to the analogue outputs If expansions are necessary depending on the configuration parameters the inputs and...

Страница 6: ...witching on the unit The inputs outputs table explaining the functions of the various connectors on the unit is contained in annex 2 at the end of this manual 3 1 Available hardware 6 Fuse Anal og Sel...

Страница 7: ...C0240111 04 05 GB 7 W3000 W3000 UNIT XL UNIT B...

Страница 8: ...C0240111 04 05 GB W3000 EXPANSION E 8...

Страница 9: ...NNECTION In the base expansion connection the entire intelligence of the unit resides in the base The connected expansions are exclusively used as additional I O The cards must be connected together w...

Страница 10: ...it with setpoint or secondary setpoint enable 3 E Number of evaporators 0 Number of compressors per circuit 2 Condensing units Unit with 2 alternative compressors per circuit 4 E At least one pump ena...

Страница 11: ...as shown in figure 3 2 Figure 3 2 master slave connection 3 2 3 MIXED CONNECTION The mixed connection is used in units with 3 4 cooling circuits where an increase in inputs outputs is required The mas...

Страница 12: ...C0240111 04 05 GB Figure 3 3 mixed connection 12...

Страница 13: ...ignal 1 2 ON Example B1 and B2 temperature probes B3 and B4 pressure transducers B5 temperature probe B6 ON OFF input ON 1 2 3 4 5 6 DIP ON 1 2 3 4 5 6 DIP 1 2 ON MOUNTING THE CLOCK CARD The clock car...

Страница 14: ...to perform are described in the following paragraphs 3 4 1 SETTING THE KEYBOARD ADDRESS After connecting the keyboard to the device using two cables for W3000 and just one cable for W3000 compact per...

Страница 15: ...keyboard address setting procedure but this time set the I O card address field with the address number used for the card A mask similar to the one shown to the side will appear Terminal Config Press...

Страница 16: ...ork 1 Press UP DOWN and ENTER together and hold down until the mask shown to the side appears Display address Setting 00 I O Card address 2 Set the required address for the keyboard e g 21 Display add...

Страница 17: ...se is not performed correctly the entire system will not work The remote keyboard will work problem free if the following operations are performed one after the other 1 Set the on board machine card a...

Страница 18: ...red Trm1 21 Pr Trm2 None Trm3 32 Sh Ok No 8 To save the settings and exit the configuration procedure move the cursor to No change it to Yes and press ENTER To exit without saving the settings wait 30...

Страница 19: ...tors more than one unit the above configuration may only be used for the last card in the network the nearest to the remote keyboard x REMOTE KEYBOARD FROM 200 metres UP TO 500 metres N B The remote k...

Страница 20: ...C0240111 04 05 GB SHIELDED TWISTED Figure 3 6 connecting the remote keyboard for distances between 200 and 500 metres 20...

Страница 21: ...Enter again to confirm If On continues to be displayed it means that the unit has been switched on x SWITCHING OFF Move to the On Off parameter and change to Off using the same procedure used to switc...

Страница 22: ...the serial card is fitted Check that the Supervisor enable and On Off enable from supervisor parameters in the user menu are set to Yes Proceed as follows x SWITCHING ON Send the switching on command...

Страница 23: ...rity change through protocol Using the parameter Make sure the unit is Off Access the setpoint menu and display the Operating mode parameter Move to the Operating mode parameter by pressing Enter and...

Страница 24: ...on again Using the supervision protocol Only applicable if the serial card is fitted Check that the Supervisor enable and Enable operating mode from supervisor parameters in the user menu are set to...

Страница 25: ...adjustment inlet only x Quick Mind adjustment outlet only x Modulating adjustment Quick mind for outlet required Centrifuge compressor x Proportional step adjustment for inlet and integral for outlet...

Страница 26: ...roportional band values according to the number of steps summer N steps Setpoint C Proportional band C Theoretical min outlet T Theoretical max outlet T 2 42 5 2 5 41 2 46 3 4 45 5 43 7 46 3 Table 5 2...

Страница 27: ...maximum number of start ups per hour Both return and delivery temperatures can be adjusted Special functions are also present which reduce the number of compressor start ups in the event of very low l...

Страница 28: ...ndles start up checks if one compressor is enough to return delivery temperature to the setpoint and avoid unnecessary start ups As the delivery temperature is still at 12 C after about 200 seconds th...

Страница 29: ...orbed power kW compressor switch on Set point Prop band 100 Thermoregulator power request Let us take a close look at how the compressor is activated figure 5 6 When the system return temperature lies...

Страница 30: ...y a compressor Max theoretical maximum electrical power absorbed by a compressor Let us take a close look at how the compressor is activated figure 5 8 The amplitude of zone A coincides with the tempe...

Страница 31: ...f active compressors or their load percentages position of modulating chamber When the temperature rises above zone B following a change in the system load the compressors are activated in order to re...

Страница 32: ...C0240111 04 05 GB T Rec C 100 75 50 25 Setpoint recupero Banda regolazione recupero Recovery adjustment band Recovery setpoint Figure 5 10 recovery function of a 4 circuit unit 32...

Страница 33: ...pecific operating modes and different setpoints can be set according to requirements Several time bands up to 5 can be set within a 24 hour period Figure 5 10 shows an example the beginning of the fir...

Страница 34: ...e n re c u p e r o M e n c o n d e n s a z io n e M e n fre e c o o lin g M e n s b rin a m e n to M e n s ic u re z z e M e n a s s is te n z a M e n in iz ia liz z a z io n e n p n p n p n p n p n p...

Страница 35: ...water by the water air heat exchange achieved thanks to the internal fans If instead the air is hot there is no point in it passing through the coil and all the water is cooled with the evaporator co...

Страница 36: ...ensation adjustment types in the chiller operating mode are shown below The fans may be turned on using the on off system step in which the fans are turned on progressively one after the other figure...

Страница 37: ...ifferential Step2 on Step adjustment Set Point Set Point differential Step4 on Figure 6 4b step condensation adjustment Condensation Pressure Set Point Set Point differential Continuous adjustment 100...

Страница 38: ...ure Enabled only in the heat pump mode Low water temperature at evaporator inlet S A 006 High inlet temperature Enabled only in the chiller mode High water temperature at evaporator inlet S A 010 Evap...

Страница 39: ...or 2 M 113 Compressor oil 3 as above for compressor 3 M 114 Compressor oil 4 as above for compressor 4 M 115 Compressor oil 5 as above for compressor 5 M 116 Compressor oil 6 as above for compressor 6...

Страница 40: ...ith no Freon in circuit 1 A 252 Circuit 2 start up timeout as above for circuit 2 A 253 Circuit 3 start up timeout as above for circuit 3 A 254 Circuit 4 start up timeout as above for circuit 4 A 261...

Страница 41: ...1 Probe 1 error expansion 4 analogue as above A 542 Probe 2 error expansion 4 analogue as above A 543 Probe 3 error expansion 4 analogue as above A 544 Probe 4 error expansion 4 analogue as above A 55...

Страница 42: ...tion that generated the alarm is eliminated the alarm must be reset by hand A Automatic reset alarm if the condition that generated the alarm is eliminated the alarm is reset automatically A M Automat...

Страница 43: ...d 1 22 3 C Cond 2 22 4 C if 2 condensers are fitted Displays inlet and outlet temperatures of the evaporator or condenser depending on whether the unit is in the summer or winter mode and the outlet t...

Страница 44: ...the card is provided with its propriety software two padlocks appear on units with 3 or 4 circuits Functions m p Access mask to functions submenu Press Up or Down to scroll the other masks and Esc to...

Страница 45: ...shold 1500 days Impulse 10 s When enabled this function activates the pumps for the set impulse time after a period of activity reaches the threshold value Only appears for units with two pumps 058 05...

Страница 46: ...ferential for liquid injection 091 092 Compressor modulation Minimum 040 Maximum 091 Sets minimum and maximum values for compressor modulation 093 094 Start revs 15000 Minimum revs 17000 Compressor st...

Страница 47: ...CCCCC Visualises the status of the circuits and the valves of the circuit C3 off valve CCCCCCCCCC C4 off valve CCCCCCCCCC Visualises the status of the circuits and the valves of the circuit Recovery m...

Страница 48: ...the heat pump mode only displayed if step condensation is set 171 172 Condensation control HeatPump step2 Setpoint 05 0 bar Diff 1 4 bar Sets step 2 in the heat pump mode only displayed if step conde...

Страница 49: ...fter the bypass time The calculation is updated every calculation interval 203 204 Ext t evap t difference threshold for changing defrost delay 15 0 C only for auto tuning Maximum difference between e...

Страница 50: ...ating the condenser anti freeze alarm 236 237 Recup antifreeze heater Setpoint 04 0 C Diff 04 0 C Sets the setpoint and differential for activating the recuperator anti freeze heater 238 239 Evaporato...

Страница 51: ...appears on units with more than 2 circuits 268 269 Master calibr exp2 offset Value B1 0 0bar 04 2bar B2 0 0bar 03 9bar Modifies the probe offsets of expansion 2 Only present if required by the type of...

Страница 52: ...calibr exp2 offset Value B7 0 0 C 22 4 C B8 Modifies the probe offsets of expansion 2 Only present if required by the type of machine configured 306 307 Slave calibr exp3 offset Value B1 0 0 C 05 3 C...

Страница 53: ...odulated only for modulating screw compressors 329 Input adjustment Type PROPORTIONAL Defines the type of adjustment only visible in the step inlet adjustment mode 330 Integral time 0600 s Integral co...

Страница 54: ...percentage of power delivered by the unit in the summer winter in heat pump units and recovery in compatible units where possible modes 361 362 363 En from dig inp On Off N Summer Winter N Allows the...

Страница 55: ...C Third daily time band setting 393 394 395 396 397 398 Band 4A Adjust Time 13 30 19 30 Sp S 07 0 C W 45 0 C Sp R 45 0 C Setting of fourth daily time band 399 400 401 402 403 404 Band 5A Off Time 19...

Страница 56: ...esent and specifies their state Dig In master exp1 C Contact closed 12345 67890 12345 O Contact open CCCCC CCCCC CCCCC Master is only specified on units with 3 or 4 circuits CCC Displays the state of...

Страница 57: ...only specified on units with 3 or 4 circuits An In master exp4 N Value 1 A 2 A Displays analogue inputs 1 and 2 of expansion 4 if present Master is only specified on units with 3 or 4 circuits An In...

Страница 58: ...AAAA AAAAA AAAA Displays the state of the digital outputs of expansion 1 if present and specifies their state C Contact closed O Contact open An In slave exp1 N Value 1 35 6 C 2 40 5 C Displays analog...

Страница 59: ...ts of expansion 5 if present and specifies their state C Contact closed O Contact open Dig Out slave exp5 12345 67890 12345 AAAAA AAAAA AAAAA AAAAA AAAAA AAAA Displays the state of the digital outputs...

Страница 60: ...ure values temperature of the liquid and calculated subcooling values of circuits 3 and 4 Timer tuning defrost Range 1200 03600 s Free Defrost 0370 s Displays for timer tuning defrost the variation ra...

Страница 61: ...status of the centrifuge compressors the request and effective activation the rpm and the percentage delivered Comp 2 Start Req 05 0 05 0 Act 15000rpm 050 Displays the operating status of the centrifu...

Страница 62: ...deselects compressors 422 423 424 425 426 428 429 W 3000 Code CA 07 00 GB nn This mask contains the reference information of the software Code 07 00 The closed padlock symbol shows that the card is p...

Страница 63: ...e unit ON OFF MODE The submask displays the operating mode of the unit CH CH Chiller HP Heat Pump ST The submask displays the operating status of the unit ON H ON K on from keypad ON D on from digital...

Страница 64: ...et adjustment 0 expressed in degrees centigrade 337 LL U The submask is used to set the lower limit of the heat pump setpoint with inlet adjustment 0 expressed in degrees centigrade The submask is use...

Страница 65: ...f the supervisor is enabled The submask is used to set the speed of communication expressed in bauds Possible values 1200 2400 9600 19 2 19200 371 ID If the supervisor is enabled The submask is used t...

Страница 66: ...9 5 expressed in degrees centigrade 413 UIN If the FLOW parameter in the user menu is set to inlet The submask is used to set the winter setpoint with inlet adjustment 0 expressed in degrees centigrad...

Страница 67: ...ssor 2 operating hours expressed in thousands 1 e g 1 1000 hours LH 2 Displays compressor 2 operating hours expressed in units 50 e g 50 50 hours SEL1 Enables compressor 1 Y N deselected Y selected 42...

Страница 68: ...led 1 enabled 0 024 Pressure transducers enable 0 disabled 1 enabled 0 Low pressure transducers enable 0 disabled 1 enabled 0 026 Enable summer setpoint offset 0 027 Enable winter setpoint offset 0 02...

Страница 69: ...0 074 Period for power maintenance impulse 600 s 0 999 075 Period for power increase impulse 10 s 0 999 076 Minimum duration of power increase impulse 1 0 s 0 0 99 9 077 Maximum duration of power inc...

Страница 70: ...n winter 0 disabled 1 enabled 0 144 Remote recovery control enable 0 disabled 1 enabled 0 145 Pressure setpoint for forcing chiller status from recovery 23 5 bar 10 0 P253 146 Pressure differential fo...

Страница 71: ...aximum condensation limit in continuous adjustment 100 P184 100 184 Minimum condensation limit in continuous adjustment 30 0 P183 185 Adjustment under the minimum condensation limit 0 adjustment alway...

Страница 72: ...tor antifreeze heating element setpoint 4 0 C P232 5 0 235 Evaporator antifreeze heating element differential 4 0 C 1 0 10 0 236 Condenser antifreeze alarm setpoint 4 0 C 30 0 5 0 237 Condenser antifr...

Страница 73: ...4 Slave probe 9 calibration 0 0 C bar 9 9 9 9 295 Slave probe 10 calibration 0 0 C bar 9 9 9 9 296 Slave probe 1 expansion 1 calibration 0 0 C bar 9 9 9 9 297 Slave probe 2 expansion 1 calibration 0 0...

Страница 74: ...52 0 C P914 75 0 346 Temperature adjustment band with step adjustment 2 5 C 2 0 10 0 347 Recovery adjustment band 5 0 C 2 0 10 0 348 Enable secondary setpoint 0 No 1 Yes 0 349 Enable external setpoin...

Страница 75: ...perature setpoint in time band 3 A 8 0 C P911 P912 398 Winter temperature setpoint in time band 3 A 40 0 C P913 P914 399 Recovery setpoint in time band 3 A 40 0 C P342 P343 400 Unit status in time ban...

Страница 76: ...epends on the adjustment type Minimum recovery setpoint Maximum recovery setpoint Enable limit for advanced time bands Minimum settable value for controlling time bands depends on parameter settings M...

Страница 77: ...ssors enable NO2 NO6 General alarms cumulative NO8 Evaporator antifreeze heating element Analogue outputs Y1 Circuit 1 speed adjustment Y2 Circuit 2 speed adjustment Y3 Y4 Digital inputs ID1 Circuit 1...

Страница 78: ...ressor 2 NO4 NO5 Cycle reversal valve NO6 NO7 General alarms cumulative NO8 Evaporator antifreeze heating element Analogue outputs Y1 Condensation adjustment Y2 Y3 Y4 Digital inputs ID1 Circuit 1 high...

Страница 79: ...O10 NO11 NO12 Compressor 1 NO13 Compressor 2 Analogue outputs Y1 Circuit 1 speed adjustment Y2 Circuit 2 speed adjustment Y3 Y4 Digital inputs ID1 ID2 Phase sequence ID3 Circuit 1 low pressure switch...

Страница 80: ...l valve NO6 NO7 General alarms cumulative NO8 Evaporator antifreeze heating element NO9 NO10 NO11 NO12 Compressor 1 NO13 Compressor 2 Analogue outputs Y1 Condensation adjustment Y2 Y3 Y4 Digital input...

Страница 81: ...arms cumulative NO14 Compressor 3 Compressor 4 NO16 Ventilation step 1 circuit 2 NO17 Ventilation step 2 circuit 2 NO18 Ventilation step 3 circuit 2 Analogue outputs Y1 Circuit 1 speed adjustment Y2 C...

Страница 82: ...heating element NO13 General alarms cumulative NO14 Compressor 3 NO15 Compressor 4 NO16 NO17 NO18 Y1 Condensation adjustment Y2 Y3 Y4 Y5 Y6 Digital inputs ID1 Circuit 1 low pressure switch ID2 Compre...

Страница 83: ...igh pressure switch ID14 Circuit 2 high pressure switch ID15 Phase sequence ID16 General enable ID17 Compressors enable ID18 Analogue inputs B1 B2 Evap outlet water temperature blend B3 Evaporator inl...

Страница 84: ...ion step 3 circuit 2 Analogue outputs Y1 Circuit 1 speed adjustment Y2 Circuit 2 speed adjustment Y3 Modulation compressor 1 Y4 Modulation compressor 2 Y5 Modulation compressor 3 Y6 Modulation compres...

Страница 85: ...s compressor 1 B3 Revs compressor 2 B4 Evap 1 outlet water temperature B5 Evap 2 outlet water temperature B6 Circuit 2 high pressure transducer B7 Revs compressor 3 B8 Revs compressor 4 B9 Evap 1 outl...

Страница 86: ...load starting Compressor 2 no load starting NO27 Separation stage 2 compressor 1 NO28 Separation stage 2 compressor 2 NO29 Drip tray resistor Analogue outputs Y1 Circuit 1 speed adjustment Y2 Circuit...

Страница 87: ...ensation adjustment Y2 Y3 Y4 Digital inputs ID1 Circuit 1 low pressure switch ID2 Compressor 1 thermal protection ID3 Compressor 2 thermal protection ID4 Circuit 2 low pressure switch ID5 Compressor o...

Страница 88: ...B5 Discharge temperature compressor 2 B6 B7 B8 Digital outputs NO1 Compressor 1 start 1 NO2 Compressor 1 start 2 NO3 Separation stage 1 compressor 1 Compressor 2 start 1 NO5 Compressor 2 start 2 NO6 S...

Страница 89: ...Ventilation step 1 NO11 Ventilation step 2 NO12 Analogue outputs Y1 Circuit 1 speed adjustment PWM Y2 Circuit 2 speed adjustment PWM Digital inputs ID1 Circuit 1 high pressure switch ID2 Circuit 2 hi...

Страница 90: ...p 2 thermal protection Compressors enable Analogue inputs B1 Circuit 1 high pressure transducer B2 Circuit 2 high pressure transducer B3 Evaporator inlet water temperature B4 Evaporator outlet 1 water...

Страница 91: ...temperature B2 ID9 Recovery inlet temperature B3 ID10 Recovery outlet temperature B4 ID11 ID12 Digital outputs ID13 Subcooling circuit 1 1 NO1 ID14 Subcooling circuit 1 2 NO2 ID15 Subcooling circuit...

Страница 92: ...Circuit 1 low pressure transducer B1 ID18 Not used Circuit 2 low pressure transducer B2 Recovery inlet temperature B3 Analogue inputs Recovery outlet temperature B4 B1 B5 B2 B6 B3 B7 B4 B8 B5 B6 Digi...

Страница 93: ...ircuit 1 low pressure transducer B1 ID18 Circuit 2 low pressure transducer B2 Recovery inlet temperature B3 Analogue inputs Recovery outlet temperature B4 B1 Condenser inlet temperature if 2 cond B5 B...

Страница 94: ...ransducer B2 ID9 Freecooling inlet temperature B3 ID10 B4 ID11 ID12 Digital outputs ID13 Hp relay circuit 1 1 NO1 ID14 Hp relay circuit 1 2 NO2 ID15 Hp relay circuit 2 1 NO3 ID16 Hp relay circuit 2 2...

Страница 95: ...ion ID3 ID4 Compressor 8 thermal protection ID4 ID5 ID6 Analogue inputs ID7 Step 5 B1 ID8 Step 6 B2 ID9 Step 7 B3 ID10 Step 8 B4 ID11 ID12 Digital outputs ID13 Compressor 5 NO1 ID14 Compressor 6 NO2 I...

Страница 96: ...tlet water temperature B2 ID9 External temp Cond 2 outlet water temp B3 ID10 Condenser outlet water temperature B4 ID11 ID12 Digital outputs ID13 Rev cycle valve 1 recovery 1 freecooling OFF NO1 ID14...

Страница 97: ...ry setpoint variation 4 20mA B2 Freecooling inlet temperature B3 ID10 B4 ID11 ID12 Digital outputs Hp relay circuit 1 1 NO1 ID14 Hp relay circuit 1 2 NO2 Hp relay circuit 2 1 NO3 Analogue inputs Hp re...

Страница 98: ...ircuit 2 2 NO4 B1 B2 Analogue outputs B3 Y1 B4 B5 B6 B7 B8 Digital outputs NO1 NO2 NO3 NO4 NO5 NO6 NO7 NO8 NO9 NO11 NO13 NO14 NO15 Expansion E address 5 Digital inputs NO17 Remote Summer Winter ID1 NO...

Страница 99: ...ts Analogue inputs B1 Evap 1 outlet water temperature B1 B2 Evap 2 outlet water temperature B2 B3 Recovery inlet temperature B3 B4 Recovery outlet temperature B4 B5 B5 B6 B6 B7 B7 B8 B8 Digital output...

Страница 100: ...1 outlet water temperature B1 Evap 2 outlet water temperature B2 B3 Recovery inlet temperature B3 B4 Recovery outlet temperature B4 B5 Condenser inlet temperature if 2 cond B5 B6 Condenser outlet wate...

Страница 101: ...O4 B1 B2 Analogue outputs B3 Freecooling modulating valve Y1 B4 B5 B6 B7 B8 Digital outputs NO1 NO2 NO3 NO4 NO5 NO6 NO7 NO8 NO9 NO10 NO11 NO12 NO13 NO14 NO15 Expansion E address 5 NO16 Digital inputs...

Страница 102: ...nalogue inputs ID7 Step 1 B1 ID8 Step 2 B2 ID9 Step 3 B3 ID10 Step 4 B4 ID11 ID12 Digital outputs ID13 Separation stage 1 compressor 3 NO1 ID14 Separation stage 2 compressor 3 NO2 Separation stage 1 c...

Страница 103: ...setpoint ID2 ID3 ID3 ID4 ID4 ID5 ID6 Analogue inputs ID7 Setpoint variation 4 20mA B1 ID8 B2 ID9 B3 ID10 B4 ID11 ID12 Digital outputs ID13 NO1 ID14 NO2 ID15 NO3 ID16 NO4 ID17 ID18 Analogue outputs Y1...

Страница 104: ...ed by thermoregulator Hp nr Heat pump circuit not demanded by thermoregulator Hp Heat pump circuit demanded by thermoregulator R nr Recovery only circuit not demanded by thermoregulator R Recovery onl...

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