TESY MultiThermica Use and care manual

EN
User and installer manual
Tesy Residential Heat Pump
MultiThermica (Max)
Control Panel
Rev. 00 - 30.10.2022

2
Markings
Conformity
Refer to the Installer Manual of the paired unit.
First of all, we would like to thank you for having chosen a device of our production.
We are sure you will be happy with it because it represents the state of the art in the technology
of home air conditioning.
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.

3
TABLE OF CONTENTS
1 General information � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p. 5
1.1 About the manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 5
1.1.1 Editorial pictograms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 5
1.1.2 Pictograms on the product. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 5
1.1.3 Recipients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 6
1.1.4 Manual organisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 6
1.2 Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 6
2 Use � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p. 8
2.1 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 8
2.1.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 8
2.1.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 8
2.1.3 Keys functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 9
2.2 Control activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 9
2.3 Basic function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 9
2.3.1 Selecting the operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 9
2.3.2 Fast Heat function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 10
2.3.3 Silent function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 10
2.4 Advanced features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 11
2.4.1 Domestic hot water temperature setting. . . . . . . . . . . . . . . . . . . . . . . . . . . p. 11
2.4.2 Date and time setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 12
2.4.3 Language setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 13
2.5 Alarm signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 14
2.6 Manual reset of alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 14
3 Menu structure� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p. 15
3.1 Remote Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 15
3.1.1 Menu navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 15
3.1.2 Change installer password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 15
3.1.3 Structure overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 16
3.1.4 Structure details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 16
4 Function setting Indoor Unit Without Integrated Water Tank � � � � � � � � � � � � � � � � p. 23
4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 23
4.2 Plant water management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 23
4.2.1 Schematicdiagramwithdirectdeliveryandbuertank . . . . . . . . . . . . . . . . . . . . p. 24
4.2.2 Schematic diagram with hydraulic separator and secondary pump . . . . . . . . . . . . . . . p. 25
4.2.3 Principle diagram with direct delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 26
4.2.4 Plant cooling/heating function enabling from TA . . . . . . . . . . . . . . . . . . . . . . . p. 26
4.2.5 Heating logic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 27
4.2.6 Cooling logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 28

4
4.3 Domestic hot water management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 29
4.3.1 Schematicdiagramwithinstantaneousdomestichotwaterstoragetankandheatingelements . . . p. 29
4.3.2 Schematic diagram with sanitary hot water storage and heating generator . . . . . . . . . . . . p. 30
4.3.3 Enable domestic hot water production . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 30
4.3.4 Domestic hot water logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 31
4.4 Auxiliary heater management (heating element or support heat generator) . . . . . . . . . . p. 31
4.4.1 Activation logics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 31
4.5 Dynamic set adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 33
4.5.1 Function enabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 33
4.5.2 Heating mode settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 33
4.6 Anti-Legionella . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 34
4.6.1 Function enabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 34
4.6.2 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 34
5 Function setting Indoor Unit With Integrated Water Tank � � � � � � � � � � � � � � � � � � � p. 36
5.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 36
5.2 Plant water management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 36
5.2.1 Schematic diagram with hydraulic separator and secondary pump . . . . . . . . . . . . . . . p. 37
5.2.2 Plant cooling/heating function enabling from TA . . . . . . . . . . . . . . . . . . . . . . . p. 38
5.2.3 Heating logic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 39
5.2.4 Cooling logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 40
5.3 Domestic hot water management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 41
5.3.1 Schematic diagram with sanitary hot water storage and heating generator . . . . . . . . . . . . p. 41
5.3.2 Enable domestic hot water production . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 41
5.3.3 Domestic hot water logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 42
5.4 Auxiliary heater management (heating element or support heat generator) . . . . . . . . . . p. 42
5.4.1 Activation logics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 42
5.5 Dynamic set adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 43
5.5.1 Function enabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 43
5.5.2 Heating mode settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 44
6 Troubleshooting � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p. 45
6.1 Troubleshooting Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 45

5
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. If the manual gets damaged
or lost, download a copy from the website.
 Read this manual carefully before proceeding with any operation and follow the instructions in the individual chapters.
 The manufacturer is not responsible for damages to persons or property caused by failure to follow the instructions in
this manual.
 This document is restricted in use to the terms of the law and may not be copied or transferred to third parties without
the express authorization of the manufacturer.
1�1�1 Editorial pictograms
The pictograms in the next chapter provide the necessary information for correct, safe use of the machine in a rapid, unmis-
takableway.
Related to security
 High risk warning (bold text)
• Theoperationdescribedabovepresentsariskofseriousphysicalinjury,fatality,majordamagetotheapplianceand/or
to the environment if not carried out in compliance with safety regulations.
 Lowriskwarning(plaintext)
• Theoperationdescribedabovepresentsariskofminorphysicalinjuryorminordamagetotheapplianceand/ortothe
environment if not carried out in compliance with safety regulations.
 Prohibition(plaintext)
• Refers to prohibited actions.
 Important information (bold text)
• Thisindicatesimportantinformationthatmustbetakenintoaccountduringtheoperations.
In the texts
– procedures
• lists
In the control panels
– actions required
Expected responses following an action.
Inthegures
1 The numbers indicate the individual components.
A The capital letters indicate component assemblies.
1 Thewhitenumbersinblackmarksindicateaseriesofactionstobecarriedoutinsequence.
A Theblackletterinwhiteidentiesanimagewhenthereareseveralimagesinthesamegure.
1�1�2 Pictograms on the product
Symbols are used in some parts of the appliance:
Related to security
Caution: electrical danger
• Theconcernedpersonnelisinformedtothepresenceofelectricityandtheriskofsueringanelectricshock.

6
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qualied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.
Toworkontherefrigerationcircuit,theinstallermustcomplywiththeprovisionsofRegulation303/2008/ECwhichdenes,in
accordancewithDirective842/2006/EC,therequirementsforcompaniesandpersonnelwithregardtoxedrefrigeration,air
conditioningandheatpumpequipmentcontainingcertainuorinatedgreenhousegases(F-gaslicence).
Technical Service Centre
Expertandqualiedpersonauthoriseddirectlybythemanufacturertocarryoutallroutineandsupplementarymaintenance
operations,aswellaseveryadjustment,check,repairandreplacementofpartsnecessaryduringthelifeoftheunititself.
ServicepersonnelmustcomplywiththeprovisionsofRegulation303/2008/ECwhichdenes,inaccordancewithDirective
842/2006/EC,therequirementsforcompaniesandpersonnelwithregardtoxedrefrigeration,airconditioningandheat
pumpequipmentcontainingcertainuorinatedgreenhousegases(F-gaslicence).
1�1�4 Manual organisation
The manual is divided into sections each dedicated to one or more target groups.
General information
It addresses all recipients.
Itcontainsgeneralinformationandimportantwarningsthatshouldbeknownbeforeinstallingandusingtheappliance.
Product presentation
It addresses all recipients.
It contains the information to identify the product, its components, compatible accessories and destination of use.
Use
It is addressed exclusively to the User.
It contains all the information necessary for the user to operate the appliance.
Menu structure
It is addressed only and exclusively to the Installer and the Technical Assistance Centre.
It contains the menu structure of the control, the operating parameters, the input and output statuses, the alarms and the
installer parameters.
Functions
It is addressed only and exclusively to the Installer and the Technical Assistance Centre.
ThesearesectionsdedicatedtothedierenttypesofunitsthatusethesameControlPanelandcontainspecicinformation
for that combination.
Troubleshooting
It is addressed exclusively to the Technical Assistance Centre.
Contains troubleshooting concerning the product.
1�2 Disposal

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oce,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.
This provision is only valid in the EU Member States.

8
USE
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.
Function area
The appliance is in stand-by mode
Cooling function on
Heating function on
Heating mode for active water frost protection
R
Heating mode with active heating element
 Heatingmodewithauxiliarygenerator(boiler)active
 Heatingmodewithheatingelementandauxiliarygenerator(boiler)
active
S
Silent low-noise function active
Fast heat function active in heating and cooling mode
 Plantwaterfunctionactivewithashingiconandcalledwithxed
icon
 Domestichotwaterfunctionactivewithashingiconandcalledwith
xedicon
!!
Active alarm
!!
Alarm to be reset manually
Temperature area
Plant water temperature
 Domestichotwatertemperature(ifthefunctionhasbeenactivated)
Ext. ambient temperature
Settings area
Settings active. When this symbol is active, the machine parameters
can be changed
A Function area
B Temperature area
C Settings area
Alarm 001 HPump1 PT5
Temperature sensor failure
B
C
A
°
C
°
C
°
C
31
31
4747
1010
!!
S
FH
-
-
-
S

9
USE
2�1�3 Keys functions
 Thiscanbeusedtoswitchtheunitonoro
 Thiscanbeusedtoselecttheoperatingmode(CoolingorHeating)
S
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
This can be used to enter and exit the main menus, exit without
saving
 Thiscanbeusedtoenterthesub-levelsofthemenusandconrm
selections
This can be used to move between the digits of the values
This can be used to move through the menus and change parameter
values
AKey area
Alarm 001 HPump1 PT5
Temperature sensor failure
A
°
C
°
C
°
C
31
31
4747
1010
S
!!
S
FH
-
-
-
2�2 Control activation
Before the activation:
– set the plant master switch in the ON position.
Thedisplaylightsupinthesetlastmode.IfOFF(icon)appears,theapplianceiso.
°
C
°
C
°
C
31
31
4747
1010
S
!!
S
FH
-
-
-
To activate the device
– pressthekey
The symbol or lights up
 Thedisplayofthecontrolunitwillswitchoafteracertaintime.Touchthescreentoreactivateit.Thelastscreenused
appears on the display.
2�3 Basic function
2�3�1 Selecting the operating mode
Thiscanbeusedtoselecttheoperatingmode(CoolingorHeating)

10
USE
°
C
°
C
°
C
31
31
4747
1010
S
!!
S
FH
-
-
-
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 xedindicatesthattheheatpumpisbeingcalled.
The symbol ashingindicatesthattheheatpumphasstartedup.
2�3�2 Fast Heat function
The heat pump is set by default to produce domestic hot water as a priority. If fast heating of the rooms is required, priority
can be temporarily shifted to the production of plant water with the Fast Heat function.
Alarm 001 HPump1 PT5
Temperature sensor failure
°
C
°
C
°
C
31
31
4747
1010
S
!!
S
FH
-
-
-
To activate:
– pressthekey
The symbol appears and the function is on for 90 minutes
To deactivate before the timeout:
– pressthekey
The symbol disappears and the function is o
2�3�3 Silent function
In particular situations, the noise level of the appliance can be reduced by lowering the operating speed of the compressor
and the fan.
 Activating the Silent function reduces the unit performance. Therefore, use is recommended only when necessary and not
for normal operation.

11
USE
Alarm 001 HPump1 PT5
Temperature sensor failure
°
C
°
C
°
C
31
31
4747
1010
S
!!
S
FH
-
-
-
To activate:
– pressthekey
S
The symbol
S
appears and the function is on
To deactivate:
– pressthekey
S
The symbol
S
disappears and the function is o
2�4 Advanced features
The Control Panel provides access to advanced user functions. These features are present in the User menu:
• Settemp.Domestichotwater(onlypresentifdomestichotwaterfunctionisactivated)
• Date and time
• Language
To access the advanced features:
– pressthekey
The User menu appears in the settings area
– press
The rst menu item appears in the settings area
To select the desired function:
– act on
– select the desired function
 In addition to the User menu, other menus for use by the Technical Assistance Centre or Installer are provided.
2�4�1 Domestic hot water temperature setting
Thisfunctionmakesitpossibletosetthedesiredhotwatertemperature.
 The menu is only present if the Domestic Hot Water function is activated.

12
USE
Set temp. acqua sanitaria
°
C
°
C
°
C
31
31
4747
1010
S
!!
S
FH
-
-
-
To set:
– press
The symbol appears in the settings area
The set value ashes in the temperature area
– act on to modify the value
– press toconrm
The symbol disappears in the settings area
The set value keeps ashing in the temperature area
 The measured domestic hot water temperature value reappears when the menu is closed.
2�4�2 Date and time setting
This function can be used to set the current date and time.
Data/ora: anno:
2021/01/14 00:26:40
°
C
°
C
°
C
31
31
4747
1010
S
!!
S
FH
-
-
-
To set:
– press
The symbol appears in the settings area
The settings area displays the currently set date and time
– clickon toselecttheparametertobemodiedfromamongyear,month,day,hours,minutesandseconds
– act on to modify the value
– press toconrm
The symbol disappears in the settings area

13
USE
2�4�3 Language setting
The function can be used to set the desired language.
Available languages:
• Italian
• English
• German
Lingua
Italiano
°
C
°
C
°
C
31
31
4747
1010
S
!!
S
FH
-
-
-
To set:
– press
The symbol appears in the settings area
The current language appears in the settings area
– clickon to select the parameter
– press toconrm
The symbol disappears in the settings area

14
USE
2�5 Alarm signals
1� Alarm message zone
°
C
°
C
°
C
31
31
4747
1010
S
!!
S
FH
-
-
-
1
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
The settings area displays the alarms that have occurred
– use to display the entire alarm message
The occurrence of the anomaly may be due to a random situation, in which case the alarm is automatically reset after some
time.
 If the anomaly is repeated several times, the appliance is put in safety and the symbol
!!
appears. In this case, the appli-
ancecomponentsmustbecheckedindetailbytheTechnicalAssistanceCentre.
2�6 Manual reset of alarms
 Manual reset of the alarms is an operation to be carried out by the Technical Assistance Centre.
Thealarmcanberesetaftercheckingtheappliancecomponents.
To restore:
– press and hold for a few seconds
– thepadlockdisappearsfromthesymbol
!!
– then the symbol
!!
disappears

15
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conrm
Button
– to modify a parameter
Buttons
– to move through the menus
– to change the parameter values
Buttons
– to move between the digits of the values
3�1�2 Change installer password
To change the password for accessing the Installer Parameters Menu
– press to access the "Change installer PW?" parameter
The display shows a sequence of numbers 000000
– use the arrows to choose a number from 0 to 9
use the arrows to move between digits
To conrm the change
– pressthekey
A warning appears on the display
press again the key
The setting is saved
To go back without saving
– pressthekey
The setting is not saved
 Default installer PW: 100000

16
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.
|Installer menu
#Contains: the parameters that only the installer or qualied personnel can modify
►Installer parameters
►Change Password
|Service menu
#Contains: the most advanced parameters that only the Technical Service Centre can
modify
3�1�4 Structure details
|User menu
►Set temp. Domestic hot water
#Visible only if the domestic hot water function is activated.
►Date and time
►Language
#Value: Italian, English, German
Setpoint set
►Summer/winter set
#Indicates: required water plant temperature
#Value: °C
►Sanitary set
#Indicates: requested domestic hot water temperature
#Value: °C
Input status
►PI1
#View: ow switch
►PI3
#View: TA temperature
►PI4
#View: Anti-Legionella
►PI5
#View: stand-by
►PI6
#View: FTV
►EXTI1
#View: outdoor unit alarm
►EXTI2
#View: defrosting outdoor unit
►PT1
#Views: plant water temperature

17
MENU STRUCTURE
►PT4
#Views: domestic hot water storage temperature
►PT5
#Display: water exchanger outlet temperature
►PT6
#Display: water exchanger inlet temperature
►PT8
#Views: external air temperature
Output status
►PP1
#Indicate: primary pump
►PV1/PP2
#Indica: sanitary three-way valve
►PP3
#Indicate: secondary pump
►PR1/PP5
#Indicates: auxiliary resistance
►EXTA "ON-OFF"
#Indicates: Outdoor unit call
►EXTB "SIL"
#Indicates: silent function activation
►AUX1
#Indicates: alarm output
►Tout/PWM
#Indicates: temperature probe malfunction
Installer menu
►Installer parameters (PF)
►ECE
#Enable: SUMMER function (Cooling)
#NO: disabled
#YES: enabled (default)
►ESL
#Set: minimum SUMMER setpoint (Cooling)
#Units of measure: °C
#Minimum: 7
#Maximum: 40
#Setting: 10
►ESH
#Set: maximum SUMMER setpoint (Cooling)
#Units of measure: °C
#Minimum: 7
#Maximum: 40
#Setting: 20
►ESP
#Set: SUMMER setpoint (Cooling)
#Units of measure: °C
#Minimum: 7
#Maximum: 40
#Setting: 12

18
MENU STRUCTURE
►EHY
#Set: SUMMER hysteresis (Cooling)
#Units of measure: °C
#Minimum: 1
#Maximum: 6
#Setting: 2.5
►ICE
#Enable: WINTER function (Heating)
#NO: disabled
#YES: enabled (default)
►ISL
#Set: minimum setpoint WINTER (Heating)
#Units of measure: °C
#Minimum: 20
#Maximum: 75
#Setting: 20
►ISH
#Set: maximum setpoint WINTER (Heating)
#Units of measure: °C
#Minimum: 10
#Maximum: 75
#Setting: 45
►ISP
#Set: setpoint WINTER (Heating)
#Units of measure: °C
#Minimum: 10
#Maximum: 75
#Setting: 40
►IHY
#Set: WINTER hysteresis (Heating)
#Units of measure: °C
#Minimum: 1
#Maximum: 6
#Setting: 2.5
►SCE
#Enable: SANITARY function enabled
#NO: disabled
#YES: enabled (default)
►SSL
#Set: minimum SANITARY setpoint
#Units of measure: °C
#Minimum: 10
#Maximum: 90
#Setting: 30
►SSH
#Set: maximum SANITARY setpoint
#Units of measure: °C
#Minimum: 10
#Maximum: 90
#Setting: 53
►SSP
#Set: SANITARY setpoint
#Units of measure: °C
#Minimum: 10
#Maximum: 90
#Setting: 45

19
MENU STRUCTURE
►SHY
#Set: SANITARY hysteresis
#Units of measure: °C
#Minimum: 1
#Maximum: 10
#Setting: 2
►LSP
#Set: ANTI-LEGIONELLA setpoint
#Units of measure: °C
#Minimum: 30
#Maximum: 90
#Setting: 60
►LTI
#Enable: interval between ANTILEGIONELLA cycles
#0: o (default)
#Unit of measurement: days
#Minimum: 0
#Maximum: 30
#Setting: 0
►LTM
#Sets: anti-legionella cycle time
#Unit of measurement: hours
#Minimum: 1
#Maximum: 12
#Setting: 2
►LTO
#Set: ANTILEGIONELLA cycle timeout
#Unit of measurement: hours
#Minimum: 1
#Maximum: 24
#Setting: 5
►HIE
#Enable: auxiliary heater management
#NOT: not present
#INT: in integration (default)
#COM: switching
#CAL: boiler
►HIS
#Set: Maximum water temperature for pdc function
#Units of measure: °C
#Minimum: 20
#Maximum: 55
#Setting: 53
►HOR
#Set: outside temperature heating element activation in WINTER
#Units of measure: °C
#Minimum: -30
#Maximum: 30
#Setting: -15
►HOS
#Enable: external temperature activation heater SANITARY
#Units of measure: °C
#Minimum: -30
#Maximum: 30
#Setting: -15

20
MENU STRUCTURE
►HTO
#Set: resistance timeout
#Unit of measurement: minutes
#Minimum: 0
#Maximum: 240
#Setting: 20
►AHI
#Set: high temperature alarm PT1 probes
#Units of measure: °C
#Minimum: 20
#Maximum: 95
#Setting: 80
►ALO
#Set: alarm low temperature probes PT1
#Units of measure: °C
#Minimum: 3
#Maximum: 30
#Setting: 5
►PMS
#Enable: operation mode
#CON: continuous
#NOR: on request
#TIM: Energy Saving (Default)
►PRT
#Set: Pump OFF time energy saving cycle
#Unit of measurement: min
#Minimum: 1
#Maximum: 30
#Setting: 2
►PST
#Set: Pump OFF time energy saving cycle
#Unit of measurement: min
#Minimum: 10
#Maximum: 240
#Setting: 15
►PRD
#Set: Pump switch-o delay
#Unit of measurement: min
#Minimum: 1
#Maximum: 30
#Setting: 2
►CLI
#Enable: climatic and PT8
#NO: disabled
#YES: enabled (default)
►OTH
#Set: maximum outside temperature for climate control
#Units of measure: °C
#Minimum: -30
#Maximum: 40
#Setting: 15
►OTL
#Set: minimum outside temperature for climate control
#Units of measure: °C
#Minimum: -30
#Maximum: 40
#Setting: -5