Summary of Contents for TESY MultiThermica
- Page 1 User and installer manual Rev. 00 - 30.10.2022 MultiThermica (Max) Control Panel Tesy Residential Heat Pump...
- Page 2 By following the suggestions contained in this manual, the product that you have purchased will operate without problems giving you optimum room temperatures with minimum energy costs. Tesy Ltd. Conformity Refer to the Installer Manual of the paired unit. Markings...
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Page 3: Table Of Contents
TABLE OF CONTENTS General information � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p. - Page 4 4.3 Domestic hot water management ........p.
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Page 5: General Information
GEnERAL InFoRMATIon GENERAL INFORMATION 1�1 About the manual This manual was written to provide all the explanations for the correct management of the appliance. This instruction manual forms an integral part of the device and therefore must be carefully preserved and must ALWAYS travel with it, even if you transfer the device to another owner or relocate it to other premises. -
Page 6: Recipients
GEnERAL InFoRMATIon 1�1�3 Recipients User non-expert person capable of operating the product in safe conditions for people, for the product itself and the environment, interpreting an elementary diagnostic of faults and abnormal operating conditions, carrying out simple adjustment, checking and maintenance operations. Installer Expert person qualified to position and connect (hydraulically, electrically, etc.) the unit to the plant; this person is responsible for handling and correct installation according to the instructions provided in this manual and the national standards cur- rently in force. - Page 7 GEnERAL InFoRMATIon The symbol on the product or its packaging indicates that the product must not be treated as normal household waste, but must be taken to the appropriate collection point for the recycling of electrical and electronic equipment. Proper disposal of this product avoids harm to humans and the environment and promotes the reuse of valuable raw mate- rials. For more detailed information about the recycling of this product, contact your local city office, your household waste disposal service or the shop where you purchased the product. Illegal disposal of the product by the user involves the application of the administrative sanctions provided for by the regula- tions in force.
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Page 8: Use
2�1 Interface 2�1�1 Description The Control Panel regulates and coordinates all the main functions of the appliance. The device can be used to view the ma- chine status, the main temperatures, the alarms and the main operating mode selection. 2�1�2 Display Statuses and active alarms on display. -
Page 9: Keys Functions
2�1�3 Keys functions This can be used to switch the unit on or off This can be used to select the operating mode (Cooling or Heating) This can be used to activate the Silent low-noise function This can be used to activate the rapid heating of the plant water This can be used to modify the selected parameter. Press and hold the button for 3 seconds to reset the manual alarms °... -
Page 10: Fast Heat Function
° C ° C ° C Alarm 001 HPump1 PT5 Temperature sensor failure To select: in sequence press the button – The symbol on indicates that Cooling mode is active The symbol on indicates that Heating mode is active The unit activates in the selected mode. The symbol fixed indicates that the heat pump is being called. -
Page 11: Advanced Features
° C ° C ° C Alarm 001 HPump1 PT5 Temperature sensor failure To activate: press the key – The symbol appears and the function is on To deactivate: press the key – The symbol disappears and the function is off 2�4 Advanced features The Control Panel provides access to advanced user functions. -
Page 12: Date And Time Setting
° C ° C ° C Set temp. acqua sanitaria To set: press – The symbol appears in the settings area The set value flashes in the temperature area act on to modify the value – press to confirm – The symbol disappears in the settings area The set value keeps flashing in the temperature area The measured domestic hot water temperature value reappears when the menu is closed. -
Page 13: Language Setting
2�4�3 Language setting The function can be used to set the desired language. Available languages: • Italian • English • German ° C ° C ° C Lingua Italiano To set: press – The symbol appears in the settings area The current language appears in the settings area click on to select the parameter... -
Page 14: Alarm Signals
2�5 Alarm signals 1� Alarm message zone ° C ° C ° C The faults are indicated on the display of the Control Panel by the symbol without padlock and with a digit indicating the number of alarms that have occurred. The alarm code and description appear in the settings area. If more than one alarm has occurred, to display them: act on –... -
Page 15: Menu Structure
MEnU STRUCTURE MENU STRUCTURE 3�1 Remote Control Panel Menu navigation Button to enter the main menus – to exit the menu sub-levels – to exit without saving – Button to enter the menu sub-levels – to confirm – Button to modify a parameter –... -
Page 16: Structure Overview
MEnU STRUCTURE 3�1�3 Structure overview User menu Contains: all the parameters that the user can modify according to the needs of the plant Setpoints set Contains: information (in display only) on the current operation of the unit Input status Contains: information (in display only) on the input of the unit. Output status Contains: information (in display only) on the output status of the unit. - Page 17 MEnU STRUCTURE ► Views: domestic hot water storage temperature ► Display: water exchanger outlet temperature ► Display: water exchanger inlet temperature ► Views: external air temperature Output status ► Indicate: primary pump PV1/PP2 ► Indica: sanitary three-way valve ► Indicate: secondary pump PR1/PP5 ►...
- Page 18 MEnU STRUCTURE ► Set: SUMMER hysteresis (Cooling) Units of measure: °C Minimum: 1 Maximum: 6 Setting: 2.5 ► Enable: WINTER function (Heating) NO: disabled YES: enabled (default) ► Set: minimum setpoint WINTER (Heating) Units of measure: °C Minimum: 20 Maximum: 75 Setting: 20 ►...
- Page 19 MEnU STRUCTURE ► Set: SANITARY hysteresis Units of measure: °C Minimum: 1 Maximum: 10 Setting: 2 ► Set: ANTI-LEGIONELLA setpoint Units of measure: °C Minimum: 30 Maximum: 90 Setting: 60 ► Enable: interval between ANTILEGIONELLA cycles 0: off (default) Unit of measurement: days Minimum: 0 Maximum: 30 Setting: 0...
- Page 20 MEnU STRUCTURE ► Set: resistance timeout Unit of measurement: minutes Minimum: 0 Maximum: 240 Setting: 20 ► Set: high temperature alarm PT1 probes Units of measure: °C Minimum: 20 Maximum: 95 Setting: 80 ► Set: alarm low temperature probes PT1 Units of measure: °C Minimum: 3 Maximum: 30...
- Page 21 MEnU STRUCTURE ► Setting: Differential for climate control Units of measure: °C Minimum: 0 Maximum: 40 Setting: 5 ► Select: Silent NO: disabled (default) YES: enabled ► Setting: Fast heat function NO: disabled (default) YES: enabled ► Setting: Autlock display NO: disabled YES: enabled (default) ►...
- Page 22 MEnU STRUCTURE ► Setting: Probe Offset PT5 Units of measure: °C Minimum: -12,5 Maximum: 12,5 Setting: 0 ► Setting: Probe offset PT6 Units of measure: °C Minimum: -12,5 Maximum: 12,5 Setting: 0 ► Setting: Probe Offset PT8 Units of measure: °C Minimum: -12,5 Maximum: 12,5 Setting: 0...
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Page 23: Function Setting Indoor Unit Without Integrated Water Tank
FUnCTIon SETTInG InDooR UnIT WITHoUT InTEGRA TED WA TER T AnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK FUNCTION SETTING INDOOR UNIT WITHOUT INTEGRATED WATER TANK 4�1 Introduction The unit is designed to provide: • water to plant for heating or cooling the rooms •... - Page 24 FUnCTIon SETTInG InDooR UnIT WITHoUT InTEGRA TED WA TER T AnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK 4�2�1 S chematicdiagramwithdirectdeliveryandbuffertank Plant 7� Shut-off valves 8� Indoor unit Indoor Unit Without Integrated Water Tank Plant drain cock 9� outdoor unit Automatic plant filling assembly 1� Plate exchanger 10� Expansion vessel 2� 11� PT6 probe PP1 primary circulation pump 3�...
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Page 25: Schematic Diagram With Hydraulic Separator And Secondary Pump
INDOOR UNIT WITHOUT INTEGRATED WATER TANK INDOOR UNIT WITHOUT INTEGRATED WATER TANK FUnCTIon SETTInG InDooR UnIT WITHoUT InTEGRA TED WA TER T AnK 4�2�2 Schematic diagram with hydraulic separator and secondary pump Plant 8� Plant drain cock 9� Indoor unit Indoor Unit Without Integrated Water Tank Automatic plant filling assembly 10� outdoor unit Expansion vessel 1�... -
Page 26: Principle Diagram With Direct Delivery
FUnCTIon SETTInG InDooR UnIT WITHoUT InTEGRA TED WA TER T AnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK 4�2�3 Principle diagram with direct delivery Plant 7� Shut-off valves 8� Indoor unit Indoor Unit Without Integrated Water Tank Plant drain cock 9� outdoor unit Automatic plant filling assembly 1� Plate exchanger 10� Expansion vessel 2� 11�... -
Page 27: Heating Logic
FUnCTIon SETTInG InDooR UnIT WITHoUT InTEGRA TED WA TER T AnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK Contact logic: • Closed contact: the unit is switched on for heating or cooling the plant water. • Open contact: the unit is switched off for heating or cooling the plant water If the domestic hot water function is active, this function has priority. TA from Modbus Supervisor Function Logic: The room thermostat is enabled by Modbus Supervisor and controlled by the Modbus register with address 117. -
Page 28: Cooling Logic
FUnCTIon SETTInG InDooR UnIT WITHoUT InTEGRA TED WA TER T AnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK 4�2�6 Cooling logic Frequency Adaptive control logic Plant water temperature ESP + EHY PT1 o PT5 o PT6 Min and max depend on the logic corresponding to the active mode (cooling) and the configuration of the unit. p. 21 PT1, 5, 6: Plant temperature probe. This depends on the setting of "SRI" p. -
Page 29: Domestic Hot Water Management
FUnCTIon SETTInG InDooR UnIT WITHoUT InTEGRA TED WA TER T AnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK 4�3 Domestic hot water management 4�3�1 Schematic diagram with instantaneous domestic hot water storage tank and heating elements 11� Plant PP1 primary circulation pump 12�... -
Page 30: Schematic Diagram With Sanitary Hot Water Storage And Heating Generator
FUnCTIon SETTInG InDooR UnIT WITHoUT InTEGRA TED WA TER T AnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK 4�3�2 Schematic diagram with sanitary hot water storage and heating generator Plant 12� Electric heating element 13� Indoor unit Indoor Unit Without Integrated Water Tank Heat generator (boiler) 14� outdoor unit Instant domestic hot water preparation storage 1�... -
Page 31: Domestic Hot Water Logic
FUnCTIon SETTInG InDooR UnIT WITHoUT InTEGRA TED WA TER T AnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK 4�3�4 Domestic hot water logic Compressor frequency Domestic hot water storage temperature SSP - SHY p. 18 "SSP" : set domestic hot water temperature p. - Page 32 FUnCTIon SETTInG InDooR UnIT WITHoUT InTEGRA TED WA TER T AnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK outdoor air temperature Auxiliary heater Time Heat pump HOR/HOS+IHY HOR/HOS p. 19 "HOR" : sets the heating threshold value p. 19 "HoS" : sets the hysteresis value in sanitary p.
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Page 33: Dynamic Set Adjustment
FUnCTIon SETTInG InDooR UnIT WITHoUT InTEGRA TED WA TER T AnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK p. 19 "SHY" : Health hysteresis p. 18 : Setpoint WINTER (Heating) "ISP" p. 18 "IHY" : WINTER Hysteresis (Heating) p. 20 "HTo" : Resistance timeout p. 19 "HIE" : Auxiliary heater management Water high-temperature request If a setpoint above 50 °C is set, the controller switches the heat pump off and the auxiliary heater on. When this function is... -
Page 34: Anti-Legionella
FUnCTIon SETTInG InDooR UnIT WITHoUT InTEGRA TED WA TER T AnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK System water temperature setpoint outdoor air temperature ISP-OTS p. 18 "ISP" : setpoint WINTER (Heating) p. 21 "oTS" : differential for climate control p. 20 : minimum outside temperature for climate control "oTL"... - Page 35 FUnCTIon SETTInG InDooR UnIT WITHoUT InTEGRA TED WA TER T AnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK Other settings are possible taking into account the following rules: • above 70°C disinfection lasts 30 minutes • between 65° and 70°C disinfection lasts 60 minutes; • between 60° and 65°C disinfection lasts 120 minutes; • between 57.5° and 60°C disinfection lasts 180 minutes; • between 55°C and 57.5°C disinfection lasts 240 minutes; The controller doesn't signal the execution of the Anti-Legionella function. The regulator performs a check according to the preset parameters and exits the Anti-Legionella function after a timeout of 5 hours. During the Anti-Legionella function, the cooling and heating requirements of the system are not fulfilled.
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Page 36: Function Setting Indoor Unit With Integrated Water Tank
FUnCTIon SETTInG InDooR UnIT WITH InTEGRATED WATER TAnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK FUNCTION SETTING INDOOR UNIT WITH INTEGRATED WATER TANK 5�1 Introduction The unit is designed to provide: • water to plant for heating or cooling the rooms •... -
Page 37: Schematic Diagram With Hydraulic Separator And Secondary Pump
FUnCTIon SETTInG InDooR UnIT WITH InTEGRATED WATER TAnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK 5�2�1 Schematic diagram with hydraulic separator and secondary pump Boiler 8� Net filter 9� Domestic hot water consumers Plate exchanger 10� High temperature (radiator) utilities Automatic relief valve System utilities 11�... -
Page 38: Plant Cooling/Heating Function Enabling From Ta
FUnCTIon SETTInG InDooR UnIT WITH InTEGRATED WATER TAnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK Check the primary pump head with the pressure drop of the plant. If this is not sufficient, manifolds must be provided on the delivery and return lines of secondary pumps. 5�2�2 Plant cooling/heating function enabling from TA The connection and activation of an external consents (TA) is essential for the operation of the unit: • TA from room thermostat • TA from Modbus Supervisor The two types of TA consents can co-exist and the unit will activate when it receives a call from at least one of the two . -
Page 39: Heating Logic
FUnCTIon SETTInG InDooR UnIT WITH InTEGRATED WATER TAnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK 5�2�3 Heating logic Frequency Adaptive control logic Plant water temperature ISP-IHY PT1 o PT5 o PT6 Min and max depend on the logic corresponding to the active mode (heating) and the configuration of the unit. p. 21 PT1, 5, 6: Plant temperature probe. This depends on the setting of "SRI" p. -
Page 40: Cooling Logic
FUnCTIon SETTInG InDooR UnIT WITH InTEGRATED WATER TAnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK 5�2�4 Cooling logic Frequency Adaptive control logic Plant water temperature ESP + EHY PT1 o PT5 o PT6 Min and max depend on the logic corresponding to the active mode (cooling) and the configuration of the unit. p. 21 PT1, 5, 6: Plant temperature probe. This depends on the setting of "SRI" p. -
Page 41: Schematic Diagram With Sanitary Hot Water Storage And Heating Generator
FUnCTIon SETTInG InDooR UnIT WITH InTEGRATED WATER TAnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK 5�3 Domestic hot water management 5�3�1 Schematic diagram with sanitary hot water storage and heating generator 8� Boiler Net filter 9� Domestic hot water consumers Plate exchanger High temperature (radiator) utilities 10�... -
Page 42: Domestic Hot Water Logic
FUnCTIon SETTInG InDooR UnIT WITH InTEGRATED WATER TAnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK 5�3�3 Domestic hot water logic Compressor frequency Domestic hot water storage temperature SSP- SHY Min and max depend on the logic corresponding to the active mode (domestic hot water production) and the configura- tion of the unit. p. 18 "SSP" : set domestic hot water temperature p. -
Page 43: Dynamic Set Adjustment
FUnCTIon SETTInG InDooR UnIT WITH InTEGRATED WATER TAnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK outdoor air temperature Auxiliary heater Time Heat pump HOR+HOS p. 19 "HOR" : sets the heating threshold value p. 19 "HoS" : sets the hysteresis value in sanitary p. -
Page 44: Heating Mode Settings
FUnCTIon SETTInG InDooR UnIT WITH InTEGRATED WATER TAnK INDOOR UNIT WITHOUT INTEGRATED WATER TANK 5�5�2 Heating mode settings ISP - OTS Settable parameters: p. 18 "ISP" : setpoint WINTER (Heating) p. 21 "oTS" : differential for climate control p. 20 "oTL" : minimum outside temperature for climate control p. -
Page 45: Troubleshooting
TRoUBLESHooTInG TROUBLESHOOTING 6�1 Troubleshooting Table Correlated Alarm Description Cause Solution variables Inlet water temperature probe Probe disconnected, faulty or ALARM 001 Check the connection and if necessary replace the probe malfunction abnormal value Water outlet temperature probe Probe disconnected, faulty or ALARM 002 Check the connection and if necessary replace the probe malfunction... - Page 46 TRoUBLESHooTInG Correlated Alarm Description Cause Solution variables • The alarm P05 appears on the control panel of the outdoor unit on size 15 or 18. (Size • Invert two of the three-phase power phases. Malfunctioning of condensing 18 refers to the Indoor Unit •...
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