RDZ WI-SA Technical Manual Download Page 4

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CONTENTS

PRESENTATION

WI control unit is customisable and can be used to manage up to 8 mixing systems, 64 climate

zones with 64 independent dehumidifiers and control up to 8 air handling units (AHU) with the

dehumidification, ventilation, air renewal and integration functions.

Moreover, it can be used in the following operating modes:

•

AUTONOMOUS MODE: to be installed on systems with independent power production.

•

SLAVE MODE: to be installed on systems with centralised power production. This

configuration provides for the use of WI.MASTER.NET control unit.

The illustrated user manual describes all the possible operating modes.

Description

Page

Presentation

General description

Summary overview of the screenshot

Functional overview of the screenshot

Actions on the menus

- INFO Menu screenshot

0 - Main screenshot

1 - general On-Off screenshot (in the event of multi-systems)

2 - System/Zone Menu Screenshot

3 - Settings Menu Screenshot

Troubleshooting

Summary of Contents for WI-SA

Page 1: ...Regulation WI SA CONTROL UNIT USER MENU TECHNICAL MANUAL Electronic regulation unit 2 2 VERSION ...

Page 2: ......

Page 3: ...use of certain hazardous substances in electricalandelectronicequipment aswellas waste disposal The crossed out wheelie bins symbol on the equipment indicates that at the end of its useful life the product must be collected separately from general waste Therefore at the end of its useful life the user must take the equipment to a designated electrical and electronic waste collection point or retur...

Page 4: ...dependent power production SLAVE MODE to be installed on systems with centralised power production This configuration provides for the use of WI MASTER NET control unit The illustrated user manual describes all the possible operating modes Description Page Presentation 4 General description 5 Summary overview of the screenshot 6 Functional overview of the screenshot 8 Actions on the menus 15 i INF...

Page 5: ...clear flashing symbols that help selecting which buttons to use refer to Table A Flashing symbols The procedure to enter data is the same for every screenshot except for some display screenshot that only allow accessing system operation information that cannot be changed Table A FLASHING SYMBOLS MOVING ICONS When the mouse cursor is blinking Pressing the button What happens is or You can access th...

Page 6: ...STATUS 2 1 SYSTEM ZONE SET 2 2 SYSTEM STATUS 2 1 1 SET VALUES 2 2 1 READOUTS 2 3 1 PROGRAMMING 2 4 1 SYSTEM ZONE READOUTS 2 3 SYSTEMS ZONE PROGRAM 2 4 SETTINGS MENU 3 SET SEASON 3 1 SEASON 3 1 1 SET DATE TIME 3 2 DATE TIME 3 2 1 SET HOLIDAYS 3 3 HOLIDAYS 3 3 1 TECHNICAL MENU 3 4 PASSWORD 3 4 1 ...

Page 7: ...ONOMA 3 1 1 1 MAIN 3 4 1 1 3 4 1 1 2 ZONES 3 4 1 1 3 AHU 3 4 1 1 1 SYSTEM 3 4 1 1 1 2 SETTINGS 3 4 1 1 1 1 SYSTEM NAME 3 4 1 1 1 2 1 CLIMATE 3 4 1 1 1 2 2 WIN COMPENSATION 3 4 1 1 1 2 3 SUM COMPENSATION 3 4 1 1 1 2 4 ADJUSTMENT 3 4 1 1 1 2 5 TYPE OF STRUCTURE 3 4 1 1 1 2 6 DYN COMPENSATION 3 4 1 1 1 2 7 SUPPLY TEMP LIMITS SYSTEM READOUTS 2 3 1 1 ZONE READOUTS 2 3 1 2 2 4 1 X 1 TYPE OF PROGRAM TEMP...

Page 8: ...TUS Set System and zone start up mode MODIFY THE SYSTEM STATUS Off System and associated zones switch off the system is automaticallyactivatedwhenthecontrolunitdetectsatemperature lower than 5 C anti freeze function On System activation 2 1 1 SYSTEM STATUS 01 SYS 1 On No 08 Zones Activation Status Systems and Zones MODIFY A ZONE STATUS AND ITS REMOTE TERMINAL BLOCK Off Zone switch off Man Zone sta...

Page 9: ...ual setpoints CHANGE AHU PARAMETERS Activateordeactivatetheintegrationfunctionandsettherelevant functioning temperatures if there is an air quality sensor set the reference value of CO2 to activate the renewal function 2 2 1 3 AHU 1 Set AHU Act Sum No Act Win No Integr diff 03 0 C Neutral air 22 0 C CO2 30 AHU parameter set Ux READINGS SETTINGS Unit type selected Ux and identification address 2 2 ...

Page 10: ...ree Cooling connection type Pre Free Cooling air inlet before coils Post Free Cooling air inlet after coils 2 2 1 4 1 5 UxBUS_01 UC11 Unit Info FreeCooling Pre GENERAL INFORMATION for SELECTED Ux ID Ux Modbus net index Model Ux Model Ver Software version installed Rev Software revision installed 2 2 1 4 1 6 UxBUS_01 UC11 Readings ID UxBUS 09 Modbus Modello Rel xxx Rev 0000 GENERAL SETTINGS for SEL...

Page 11: ...ld for the quality of clean air 2 3 1 3 AHU 1 AHU Readouts En Mix No Del 53 7 C Out 00 0V Calc 22 0 C Mix 000 En CO2 No QA Bad No CO2 Set 30 0 Ux READINGS SETTINGS Unit type selected Ux and identification address 2 3 1 4 UxBUS_02 UC12 Readings Settings Id 01 Ver 000 Rev 0000 TEMPERATURE READINGS for UxBUS_xy xy unit index Supply Temp Delivery air temperature Water Temp Inflow water temperature Con...

Page 12: ...us Modello Rel xxx Rev 0000 WEEKLY PROGRAM 2 4 SYST ZONE PROGRAM Programming the Timeslots SELECT THE SYSTEM TO BE PROGRAMMED 2 4 1 PROGRAMMING SYSTEM SYS 1 N 08 Zones Set programs for selected system SELECT PROGRAMMING T Temperature D Dehumidification summer H Humidification winter V Ventilation R Air renewal E System economy ECO UCxx UCxx economy AUX1 Auxiliary chrono 1 AUX2 Auxiliary chrono 2 2...

Page 13: ... timeslots SETTHETIMESLOTSACTIVATIONFORTWOEXTERNAL DEVICES THROUGH INTEGRATED RELAYS 2 4 1 7 1 2 4 1 8 1 AUX 1 ECO NO FROM TO 07 30 12 00 ECO 13 00 17 00 19 00 22 30 Program timeslots CHANGE SYSTEM AND PROGRAM SETTINGS 3 SETTINGS Technical Menu SET THE SEASON SUMMER WINTER 3 1 3 1 1 SET SEASON Set season mode SEASON Winter Press PRG for Manual Automatic SET AUTOMATIC OR MANUAL CHANGE OF SEASON N B...

Page 14: ...L menu SELECT WHAT TO MODIFY System Zone Dehumidifiers 3 4 1 1 UM Main System Zones Dehumidifiers MODIFY SYSTEM PARAMETERS Modify system name Modify settings Climate Winter climate Summer climate Adjustment Type of structure delta structure Dynamic compensation 3 4 1 1 1 3 4 1 1 1 1 3 4 1 1 1 2 1 3 4 1 1 1 2 2 3 4 1 1 1 2 3 3 4 1 1 1 2 4 3 4 1 1 1 2 5 3 4 1 1 1 2 6 UM System Names Settings SYS Nam...

Page 15: ...l 45 0 22 0 Winter compensation curve SYS 1 SumComp 01 Min Max Off TExt 23 0 32 0 0 0 TDel 20 0 15 0 Summer compensation curve SYS 1 Adjustment 01 Pgm Man tmp Hum Summer 2 0 10 Winter 2 0 10 Eco adjustment Manual program SYS 1 DELTA STR 01 Delta Structure 2 0 Type of screed SYS 1 DynComp 01 Enable Yes Pilot 01 KDSum 3 KDWin 03 TMin 10 0 TMax 50 0 Room dynamic compensation Supply temp limits SUMMER...

Page 16: ...O ADDRESS 2 SYSTEM ZONE MENU 2 2 SYSTEM ZONE SET 2 2 1 SET VALUES 2 2 1 2 ZONE SET VALUES SCREENSHOT ZONE 1 Set Sum Val Set settings 24h manual Table of variables No Description 1 Temperature value 2 Humidity value Table of movements Button Screenshot 2 2 1 SET VALUES Byaccessingthe SetSum Summer Win Winter values submenu you can establish the Temperature Humidity comfort values the latteronlyinsu...

Page 17: ... it cannot be modified For example to activate the Holidays holiday timer function you need to access the Holidays screenshot 3 Settings Menu 3 3 Holidays pressing the ARROW DOWN and set the activation and the start and the end of this period Table of icons Icon Description The symbol means that the protocol of the interface connected with J5 is P LAN The symbol means that the protocol of the inte...

Page 18: ...d in the table have the following meaning X situation of the setting irrelevant setting situation 1 SYSTEM STATUS OFF Deactivated system Mixing is disabled and all the zones associated to the system are deactivated Operates in ANTIFREEZE mode during winter ON Activated system Mixing is enabled according to the calculated temperature setpoint The system zones operate according to their set status 2...

Page 19: ...ining the operating status of the system and its zones Example A house with a system associated to every floor System 1 Ground Floor System 2 First Floor System 3 Second Floor etc Every system floor is divided into zones that can be managed separately System 1 ground floor System 2 first floor System 3 second floor Zone 1 kitchen Zone 1 room 1 Zone 1 bathroom Zone 2 living room Zone 2 room 2 Zone ...

Page 20: ...tion prevents damage to the system caused by frost ADDRESS 2 SYSTEM ZONE MENU 2 1 SYSTEM ZONE STATUS 2 1 1 SYSTEM STATUS 2 1 1 1 ZONE STATUS SCREENSHOT ZONE 2 ZONE STATUS Unlocked Zone status and block setting This screenshot allows defining the operating status of the selected zone The On status of the system allows the zones to operate according to the set operating status The status of the zone...

Page 21: ...2 2 1 1 PARALLEL SHIFTING 2 2 1 2 ZONE SET VALUES 2 2 1 3 DEHUMIDIFIERS 2 2 1 4 UxBUS_xx This section allows modifying the operating parameters that characterise the system zones and air handling units Table of variables No Description 1 When it flashes you can access the Parallel shifting screenshot 2 When it flashes you can access the Zone Set Values screenshot 3 When it flashes you can access t...

Page 22: ...temperature and humidity values of the relative season are considered As for the sets the system On and Off statuses are indicated 3 2 4 1 2 1 You can define the meaning of each of the 4 digital inputs on the WI M1 board The admitted values are Chiller Alarm Boiler Alarm Remote thermostat for low temp Sys 1 Remote thermostat for low temp Sys 2 Remote thermostat for high temp General On Off Season ...

Page 23: ...NSHOT Table of movements Button Screenshot 2 2 1 4 UxBUS_xx ADDRESS 2 SYSTEM ZONE MENU 2 2 SYSTEM ZONE SET 2 2 1 SET VALUES 2 2 1 4 UXBUS_XX SCREENSHOT Table of movements Button Screenshot 2 2 1 READOUTS 2 3 1 4 1 UxBUS_xx READOUTS 2 3 1 4 2 UxBUS_xx SETTINGS Table of variables No Description 1 Enter the readings menu 2 Enter the settings menu 3 Referred to the Ux unit connected 4 Referred to the ...

Page 24: ...ss the UxBUS_xx Readouts screenshot The Readout section allows displaying the essential SYSTEM and ZONE operating data 3 4 2 1 ADDRESS 2 SYSTEM ZONE MENU 2 3 SYSTEM ZONE READOUTS 2 3 1 READOUTS 2 3 1 1 SYSTEM READOUT SCREENSHOT SYS 1 P Mix 087 Ext 27 6 Del 18 2 Calc 20 0 09 10 Floor Table of variables No Description 1 Name of the system 2 System Activation Status Activated Deactivated 3 Season Sum...

Page 25: ... 4 A The zone dehumidification Off On Status available only when the Zone is configured with a TA H sensor and a Dehumidifier If the zone is in programming mode the Comfort or Economy status is displayed with the programming set corresponding to the operating time 4 B The zone humidification Off On Status availableonlywhentheZoneisconfiguredwithaTA H sensorandahumidifier Ifthezoneisinprogramming m...

Page 26: ...READINGS FOR UxBUS_ xx Table of variables No Description 1 Enter the readings menu 2 Enter the settings menu 3 Refer to the unit connected Ux 5 4 3 2 1 6 UxBUS_01 UC11 Temperature Readings Supply temp 000 0 c Water temp 000 0 c Conden temp 000 0 c Evapor temp 000 0 c Extern temp 000 0 c No Description 6 Mixing calibration enabled 7 Value detected by the duct sensor 8 Calculated mixing temperature ...

Page 27: ...ariables No Description 1 Overheating temperature 2 Position of the water valve for the pre treatment coil 3 Position of the water valve of the condensation coil Table of variables No Description 1 Free Cooling connection type 1 2 1 Table of movements Button Screenshot 2 3 1 4 UxBUS_xx 2 3 1 4 1 1 TEMPERATURE READINGS 2 3 1 4 1 3 DEFROST READINGS Table of movements Button Screenshot 2 3 1 4 UxBUS_...

Page 28: ...ure or humidity associated to the timeslot in the example between 12 00 and 13 00 and between 22 30 and 6 00 the temperature or humidity will be identified with the ECONOMY status also settable as you wish Upon setting the various programs the user must decide the ones to assign to every day of the week For example from Monday to Friday you can apply the STD program for the temperature and Pg1 for...

Page 29: ...2 2 1 CONF ECO Modifying system and zone set values ADDRESS 2 SYSTEM ZONE MENU 2 4 SYSTEM ZONE PROGRAM 2 4 1 PROGRAMMING 2 4 1 1 TEMPERATURE SCREENSHOT 2 4 1 5 SYSTEM ECONOMY SCRENNSHOT 2 4 1 2 DEHUMIDIFICATION SCREENSHOT HUMIDIFICATION SCREENSHOT 2 4 1 6 UXBUS_XX ECONOMY SCREENSHOT 2 4 1 7 AUX 1 SCREENSHOT 2 4 1 3 VENTILATION SCREENSHOT 2 4 1 8 AUX 2 SCREENSHOT 2 4 1 4 AIR RENEWAL SCREENSHOT 5 6 ...

Page 30: ... 1 Functions to be programmed Tmp Temperature Deh Dehumidification Hum Humidification Ven Ventilation Ren Air renewal 2 Season Sum Summer Win Winter TEMPERATURE DEHUMIDIFICATION HUMIDIFICATION VENTILATION No Description 3 Program TYPE Std Standard Fer Weekday Fes Weekend Pg1 Pg5 Program 1 5 4 Starting Time 5 End Time 6 Economy Temperature 7 Comfort temperature 8 Economy Humidity 9 Comfort Humidity...

Page 31: ...n 3 programming slots Foreachoftheseslots youmustdefinethestartingtime From and the ending time To with the respective Comfort set i e the temperature to be maintained Dehumidification ventilation and air renewal selected in the previous menu 2 4 1 1 Temperature Dehumidification Ventilation Air renewal must be set the same way Warning Unlike for temperature and dehumidification Humidification vent...

Page 32: ...0 23 45 Modify values 19 20 21 From To 18 0 Tmp 06 00 12 00 22 0 Win 13 00 18 00 00 0 Std 00 00 00 00 00 0 Program timeslots 12 0 18 0 0 00 From To 18 0 Tmp 06 00 12 00 22 0 Win 13 00 18 00 20 0 Std 00 00 00 00 00 0 Program timeslots 22 0 20 0 0 0 From To 18 0 Tmp 06 00 12 00 22 0 Win 13 00 18 00 20 0 Std 19 00 00 00 00 0 Program timeslots 3rd TIMESLOT 13 0 19 0 Modify values 00 00 23 45 Modify va...

Page 33: ...and zone set values ADDRESS 2 SYSTEM ZONE MENU 2 4 SYSTEM ZONE PROGRAM 2 4 1 PROGRAMMING 2 4 1 X 2 4 1 X 1 TYPE OF PROGRAM WEEKLY 2 4 1 x 1 2 WEEKLY SCREENSHOT Table of movements Button Screenshot 2 4 1 x 1 TYPE OF PROGRAM WEEKLY Once the programs have been set refer to menu 2 4 1 1 1 1 Type of program you can associate the days of the week MO TU WE TH FR SA SU other types of program Std Fer Fes P...

Page 34: ... how to copy a temperature program from ZONE1 to ZONE2 Example Upon selecting the zone to which you want to copy the program press PRG to proceed This procedure can be used for all the ZONES configured in the system Copy of a weekly program Day Progr Monday Std Tuesday Std Wednesday Std Thursday Std Friday Std Saturday Fer Sunday Fes From To 18 0 Tmp 06 00 12 00 22 0 Win 13 00 17 00 20 0 Std 19 00...

Page 35: ... 1 X 2 4 1 x TYPE OF PROGRAM SCREENSHOT Table of movements Button Screenshot 2 4 1 PROGRAMMING Table of variables No Description 1 Programmable operations Sys System different for each system Ahu UCxx different for each unit Aux1 Auxiliary contact 1 NO5 Aux2 Auxiliary contact 2 NO6 2 Start time AUX2 No Description 3 Finish time 4 Enable Disable function programming 5 Adjustable delta on system cal...

Page 36: ...6 00 12 00 Sum 14 00 17 00 Std 19 30 23 30 Program timeslots From To Rin 06 00 12 00 Sum 13 00 18 00 Std 19 00 22 30 Program timeslots Temperature 00 00 24 00 12 00 13 00 27 C 06 00 18 00 19 00 22 30 Time Economy Ec Ec Ec Comfort Comfort Comfort Economy 25 C 26 C 24 C 12 15 20 45 23 30 00 00 24 00 12 00 14 00 17 00 06 00 18 00 Economy Economy Ec Comfort Comfort Comfort 55 UR 60 UR 65 UR Economy Hu...

Page 37: ...rogram timeslots 00 00 06 00 12 00 18 00 24 00 Air flow Set 10 20 30 40 50 Hour Comfort Eco 20 Com Com Com Eco 50 Eco 30 AUX 1 ECO Y FROM TO 07 30 11 30 ECO 13 00 17 00 19 00 22 30 Program timeslots 00 00 06 00 12 00 18 00 24 00 ON OFF Hour Calculated temperature on the climatic curve Delivery water temp with 3 C adjustment AUX1 digital output NO5 on WI M1 AUX2 digital output NO6 on WI M1 ECO Y FR...

Page 38: ...20 45 23 30 00 00 24 00 12 00 14 00 17 00 06 00 18 00 Ora 55 UR 65 UR Economy Humidity Economy Ec Economy Ec Comfort Comfort Com Temperature From To XX X Tmp 06 00 12 00 XX X Sum 13 00 18 00 XX X Std 19 00 22 30 XX X Program timeslots ZONA 1 Set Sum Val 22 0 55 Setting 24h manual Setpoints SYS 1 Adjustment 01 Pgm Man tmp Hum Summer 2 0 10 Winter 2 0 10 Eco adjustment Manual program ZONE SET VALUES...

Page 39: ...required humidity percentageinthevarioustimeslots of the available programs Std WD etc F If necessary set the timeslots for the air renewal and ventilation functions where available G 1 Access menu 2 4 1 1 1 Type of weeklyprogram TPR WeekZONE 2 Select Zoneweeklyprogram 3 Associate the various programs for managing temperature and humidity and if necessary ventilation and air renewal to every day o...

Page 40: ...SCREENSHOT Table of movements Button Screenshot 0 MAIN 3 SETTINGS MENU 3 1 1 SEASON 3 2 SET DATE TIME SET SEASON Set Season mode In the SEASON section you can set the seasonal operating mode of the control unit This setting is allowed only if the control unit is set to Winter Summer operating mode and the digital input for the season is not configured see screenshot 2 2 1 1 1 This setting is not a...

Page 41: ...o MANUAL SET DATE TIME Set Date and Time of the control unit 1 3 4 2 ADDRESS 3 SETTINGS MENU 3 1 SET SEASON 3 1 1 SEASON 3 1 1 1 Automatic Manual Season The Man Auto Freehold allows changing the season as follows Man the change of season is managed by the user through the Summer Winter field Auto The change of season is managed by the control unit according to set temperature The control unit will...

Page 42: ... the time range between the two dates entered The time range provides for the following parameters FROM Date of the 1st day of absence dd MM YY Day Month Year TO Date of the last day of absence dd MM YY Day Month Year ADDRESS 3 SETTINGS MENU 3 4 TECHNICAL MENU SCREENSHOT Table of movements Button Screenshot 0 MAIN 3 3 SET HOLIDAYS 3 4 1 PASSWORD 3 4 SETTINGS MENU TECHNICAL MENU Access TECHNICAL me...

Page 43: ... Access to the area for modifying zone names 3 Access to the area for modifying dehumidifier names Table of movements Button Screenshot 3 4 TECHNICAL MENU ADDRESS 3 SETTINGS MENU 3 4 TECHNICAL MENU 3 4 1 PASSWORD MENU 3 4 1 1 MAIN 3 4 1 1 1 SYSTEM SCREENSHOT Table of movements Button Screenshot 3 4 1 1 MAIN Table of variables No Description 1 Access to the area for modifying system names 2 Access ...

Page 44: ...oiler chiller and the pump adjusting the mixing valve to the required calculated temperature Partial disconnection of the system is controlled by external controls by means of remote thermostats Season Winter Temperature control is activated only during the winter season Winter Summer Temperature control is activated during Winter Summer Summer Temperature control is activated only during the summ...

Page 45: ... the figure below The control unit will adjust the water delivery temperature according to the outdoor temperature and to the dew point Summer Compensation Line Reference Settings WALL CEILING Name Min Max Name Val TExt 20 C 30 C Off 0 Del T 16 C 12 C FLOOR Name Min Max Name Val TExt 23 C 32 C Off 0 Del T 20 C 15 C ADDRESS 3 SETTINGS MENU 3 4 TECHNICAL MENU 3 4 1 PASSWORD MENU 3 4 1 1 MAIN 3 4 1 1...

Page 46: ...ucture with wood Delta structure Between 3 and 3 5 cm 2 3 2 Between 4 and 4 5 cm 3 4 Between 5 and 6 cm 4 5 4 5 Between 7 and 8 cm 5 6 ADDRESS 3 SETTINGS MENU 3 4 TECHNICAL MENU 3 4 1 PASSWORD MENU 3 4 1 1 MAIN 3 4 1 1 1 SYSTEM 3 4 1 1 1 2 SETTINGS 3 4 1 1 1 2 4 ADJUSTMENT SCREENSHOT Table of movements Button Screenshot 3 4 1 1 1 2 3 SUMMER COMPENSATION 3 4 1 1 1 2 SETTINGS 3 4 1 1 1 2 5 TYPE OF S...

Page 47: ...e of the temperature calculated through the compensation line see cooling heating curve TMCL The value obtained will be valid if it falls within the comfort limit limits due to the type of structure during winter and the dew point during summer and the limits TMin for the summer value and TMax for the winter value Should the result not be valid the calculated value will be the one set by the comfo...

Page 48: ...zone names ZONE Name 01 Z O N E 1 ADDRESS 3 SETTINGS MENU 3 4 TECHNICAL MENU 3 4 1 PASSWORD MENU 3 4 1 1 MAIN 3 4 1 1 3 AHU SCREENSHOT Table of movements Button Screenshot 3 4 1 1 MAIN Table of variables No Description 1 Alphanumerical fields of the AHU names DEHUMID Name 01 A H U 1 This section allows modifying the name max 6 characters of the zone This section allows modifying the name max 6 cha...

Page 49: ...lfunctioning or disconnected NB system Syst 1 is deactivated 5 SYSTEM ALARM ROOM TEMPERATURE HUMIDITY SENSOR S Temperature Sensor s Faulty Disconnected Enter Display ALARM DEW POINT SYSTEM SYST 1 This error occurs during summer when there is no temperature humidity detection in the system i e all the temperature humidity sensors connected to the system are malfunctioning or disconnected NB system ...

Page 50: ...M ALARM THERMAL Enter Display THERMAL SYSTEM SYST 1 This occurs when during winter the delivery sensor detects a temperature of 45 C settable for a certain amount of time while the system is off 10 WI Z UNIT ALARM OFF LINE Wi Z Enter Display Exp OffLine Wi 1 Wi Z11 Wi Z12 Wi Z13 Wi Z14 Wi Z15 Wi Z16 Wi Z17 Wi Z18 In the event of failed communication a bell will appear next to the expansion 11 WI U...

Page 51: ...gerating circuit Unit of coolant discharge Gas Missing in case of UAP 200 Gashighpress High pressure alarm on the refrigerating circuit Compr high temp High temperature alarm on compressor Bus communicat BUS communication alarm Alarms UC 0 Defrosting High Temp water Fan 1 Fan 2 Pres next Alm Defrosting Ice presence alarm High Temp water High temperature alarm on water Water Low Temp in case of UAP...

Page 52: ... of the water temperature sensor NTC7 sensor Compr temp sensor Failure of the compressor temperature sensor NTC3 sensor Outdoor temp sens Failureoftheexternaltemperature sensor NTC8 sensor Errors Faults UC 0 Pressure transduc Press transduc A Press transduc B Pres next Alm Pressure transduc Failure of cooling transducer pressure Capacitor probe in case of UAP 200 Press transduc A Failure of differ...

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