MAXA i-32V5C MIDI 0121 User manual

www.maxa.it
R32
i-32V5C MIDI 0121
i-32V5C MIDI 0126
i-32V5C MIDI 0128
i-32V5C MIDI 0132
i-32V5H MIDI 0121
i-32V5H MIDI 0126
i-32V5H MIDI 0128
i-32V5H MIDI 0132
Chillers and Inverter Air/Water heat pumps with axial fan
Controller Manual
This manual has been created for informave purpose. The company declines any responsibility for the results of any projecng or any installaon based on the
explanaons and/or on the technical specicaons provided in this manual. It is besides forbidden the reproducon under any form of the texts of the gures
contained in this manual. This manual is a translaon from the ocial italian language version. For reasons of environmental respect the Company will not provide
the hard copy in the original language which could be directly requested or downloaded from the Company website at any me. In case of any dispute, the original
languate manual will be the trusted one. Even paral reproducon PROHIBITED © Copyright - Advanx SpA
Model

Controllo per i-32V5 MIDI Air/water inverter chillers and heat pumps with axial fans
2
00 01-2021 EM AR First emission
Rev Date Compiled Approved Note
Code Serie
MCO01040101001.00 Chillers and Inverter Air/Water heat pumps with axial fan

3
Controllo per i-32V5 MIDI Air/water inverter chillers and heat pumps with axial fans
Sommario
1.PURPOSE AND CONTENT OF THE MANUAL....................................................................... 6
1.1 HOW TO KEEP THE MANUAL ....................................................................................... 6
1.2 GRAPHIC SYMBOLS USED IN THE MANUAL................................................................. 6
2. PERMITTED USE................................................................................................................. 6
3. GENERAL SAFETY GUIDELINES........................................................................................... 6
3.1 PERSONAL PROTECTIVE EQUIPMENT .......................................................................... 7
3.2 WORKERS' HEALTH AND SAFETY ................................................................................. 7
3.3 SAFETY SIGNALS .......................................................................................................... 7
3.4 REFRIGERANT SAFETY DATA SHEET ............................................................................. 7
4. USER INTERFACE - CONTROLLER ....................................................................................... 7
4.1 DISPLAY........................................................................................................................ 8
4.1.1 KEYS.......................................................................................................................... 8
4.1.2 LED............................................................................................................................ 8
4.2 MENU .......................................................................................................................... 9
4.3 SETPOINT MENU [Set]................................................................................................. 9
4.4 PASSWORD MENU [PSS].............................................................................................. 9
4.5 ALARMS MENU [Err].................................................................................................... 9
4.6 PROBES MENU [tP]...................................................................................................... 9
4.7 DIGITAL INPUTS MENU [Id]........................................................................................ 10
4.8 PARAMETERS MENU [Par] ......................................................................................... 10
4.9 OPERATING HOURS MENU [oHr]............................................................................... 10
4.10 LOG MENU [HiSt]..................................................................................................... 10
4.11 FIRWARE VERSION MENU [Fir]................................................................................ 10
4.12 USB MENU[USB]...................................................................................................... 10
4.12.1 FIRMWARE UPDATE [UPdF] .................................................................................. 10
4.12.2 PARAMETERS UPDATE [UPPA] .............................................................................. 10
5. SYSTEM RESOURCES........................................................................................................ 11
6. EDITING DYNAMIC SET-POINT ......................................................................................... 11
7. SET-POINT MODIFICATION FROM ANALOGUE INPUT ..................................................... 12
8. CIRCULATOR .................................................................................................................... 12
8.1 CONTINUOUS OPERATION......................................................................................... 13
8.2 OPERATION ON CALL BY TEMPERATURE CONTROLLER ............................................. 13
8.3 OPERATING ON CALL BY TEMPERATURE CONTROLLER WITH PERIODIC ACTIVATION ...13
8.4 OPERATION WITH INTEGRATION RESISTOR ACTIVE .................................................. 13
8.5 ANTIFREEZE HYDRAULIC PUMP OPERATION ............................................................. 13
8.5.1 PROPORTIONAL REGULATION ................................................................................ 13
8.6 SYSTEM VENTING ...................................................................................................... 14
9. COMPRESSOR ON/OFF LOGIC ......................................................................................... 14
9.1 REGULATION IN COOLING MODE .............................................................................. 14
9.2 REGULATION IN HEAT MODE..................................................................................... 15
10.FAN ................................................................................................................................ 15
10.1 SILENCED VENTILATION........................................................................................... 15
11.COMPRESSOR CRANKCASE RESISTENCE........................................................................ 15
12.ENABLING DOMESTIC HOT WATER PRODUCTION......................................................... 15

Controllo per i-32V5 MIDI Air/water inverter chillers and heat pumps with axial fans
4
12.1.1 MEMORISING THE PROBE IN HEATING MODE ..................................................... 16
12.1.2 HEATING MODE ON DHW STORAGE TANK ........................................................... 16
13.REMOTE FUNCTION....................................................................................................... 16
13.1 ON/OFF.................................................................................................................... 16
13.2 SUMMER/WINTER MODE CHANGE......................................................................... 16
13.3 DHW CALL FROM DIGITAL INPUT ............................................................................ 17
13.4 SYSTEM WATER REMOTE PROBE ............................................................................. 17
14.DEFROSTING CYCLE ....................................................................................................... 17
15.DOUBLE SET-POINT........................................................................................................ 17
16.MINIMUM HZ FUNCTIONS ............................................................................................ 17
17.MINIMUM HZ FUNCTIONS ............................................................................................ 18
18.AUXILIARY RESISTANCES................................................................................................ 18
18.1 SYSTEM RESISTANCE................................................................................................ 18
18.2 SANITARY RESISTANCE............................................................................................. 18
18.3 INDIVIDUAL SYSTEM/HEALTH INTEGRATION RESISTENCE....................................... 18
18.4 INTEGRATION RESISTANCE SELECTION MODE......................................................... 19
18.5 CIRCULATOR MANAGEMENT WITH ACTIVE RESISTANCE......................................... 19
18.6 BOILER ENABLING ................................................................................................... 19
18.7 LOGIC OF INTEGRATION HEATERS AND/OR BOILER IN JOINT OPERATION OR IN SUB-
STITUTION OF THE HEAT PUMP COMPRESSOR .................................................................. 19
18.8 OPERATION HEAT PUMP MODE .............................................................................. 20
18.9 JOINT OPERATION (I BRACKET)................................................................................ 20
18.10 JOINT OPERATION (II BRACKET)............................................................................. 20
18.11 OPERATION IN SUBSTITUTION............................................................................... 20
18.12 OPERATING BANDS ............................................................................................... 21
18.13 AUXILIARY SYSTEMS OFFSET MANAGEMENT........................................................ 23
19.ANTIFREEZE PROTECTION RESISTANCES (IF KA ACCESSORY IS PRESENT)......................24
20.PARTIAL RECOVERY WITH DESUPERHEATER (IF DS ACCESSORY IS PRESENT) ................24
21.LOGICS THAT CAN BE ACTIVATED WITH GI MODULE - SYSTEM MANAGEMENT (ACCESSO-
RY) ...................................................................................................................................... 24
22.PERMITTED CONFIGURATION TABLES ........................................................................... 24
23.ALARMS......................................................................................................................... 27
23.1 [E006] FLOW SWITCH .............................................................................................. 27
23.2 [E018] HIGH TEMPERATURE .................................................................................... 27
23.3 [E005] ANTIFREEZE.................................................................................................. 27
23.4 [E611÷E681] PROBE ALARMS OR PRESSOSTAT........................................................ 27
23.5 [E691÷E701] TRANSDUCER ALARMS....................................................................... 28
23.6 [E801] INVERTER TIMEOUT ..................................................................................... 28
23.7 [E851 ÷E971] INVERTER ALARMS ............................................................................ 28
23.8 [E00] REMOTE ON/OFF SIGNALLING ....................................................................... 28
23.9 [E001] HIGH PRESSURE............................................................................................ 28
23.10 [E002] LOW PRESSURE .......................................................................................... 28
23.11 [E008] DRIVER LIMITATION.................................................................................... 28
23.12 [E041] 4-WAY VALVE .............................................................................................. 28
23.13 [E042] DOMESTIC HOT WATER SANITARY.............................................................. 28

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Controllo per i-32V5 MIDI Air/water inverter chillers and heat pumps with axial fans
23.14 LACK OF VOLTAGE.................................................................................................. 28
23.15 UTILITIES BLOCK ALARM TABLE ............................................................................. 28
24.MODBUS VARIABLES ..................................................................................................... 29

Controllo per i-32V5 MIDI Air/water inverter chillers and heat pumps with axial fans
6
1. PURPOSE AND CONTENT OF THE MANUAL
The purpose of the control manual for i-32 MIDI units is to provide the essenal informaon necessary for the correct use of all the funcons
of the machine, in parcular, it provides the essenal informaon for the setup of unit control. The informaons contained in this manual are
wrien for the installer and for the user who uses the machine: the user, even if he does not have specic informaon, will nd in these pages
the indicaons that will allow him to use it eecvely. It is reccomended that the user carefully follows the instrucons given in this manual,
especially the safety instrucons and roune maintenance. The manual describes the machine at the me it was commercialised; the Company
reserves the right to make changes and tecnological improvements to the product and it is not obliged to update manual of previous versions.
Besides, the Company declines all responsability for any errors contained in the manual, if due to prinng or transcripon errors. Be sure to use
the manual, in case of updates or doubts contact the company.
HOW TO KEEP THE MANUAL
The manual has to always be kept together with the unit it refers to. It has to be stored in a safe place, protected from dust and moisture and
easily accessible to the operator who must consult it any me he is in doubt on how to operate the equipment. Any updates sent to the customer
must be kept in an aachment to this manual. The company is available to give any detailed informaon about this manual and to give informa-
on regarding the use and the maintenance of the units.
GRAPHIC SYMBOLS USED IN THE MANUAL





2. PERMITTED USE
• The company excludes all contractual and extra-contractual liability for damage caused to persons, animals or things, due to installaon,
adjustment and maintenance errors, improper use or paral or supercial reading of the informaon contained in this manual.
• These units are built for the heang and/or cooling of water. Any other use not expressaly authorised by the manufacturer is considered
improper and therefore not allowed.
• Modicaon of the operang logic and/or control parameters must be executed by experienced and qualied personnel. Access to the
electrical panel and the connecon of external devices are only permied to qualied personnel.
• This appliance is intended to be used by experienced or trained operators in shops, light industry and on farms, or for commercial use by
non-experted personnel.
• The appliance may be used by children at least 8 years old and by persons with reduced physical, sensory or mental capabilies or without
experience or the necessary knowledge as long as they are supervised or aer they themselves have received instrucons on the safe use
of the appliance and understand the relevant dangers. Children must not play with the appliance. The cleaning and maintenance which the
user is expected to carry out on the unit cannot be done by children without supervision.
• Direct interacon with the unit by personnel with electrically controlled medical devices, such as pacemakers, is prohibited, because it may
cause harmful interference. It is reccomended to mantein an appropriate distance from the installaon site of the unit, as indicated by the
medical system used.
3. GENERAL SAFETY GUIDELINES
Before starng any type of operaon on the unit, every user and operator must have perfect knowledge of operaon of the machine and of its
controls and have read all of the informaon in this manual and in the user-installer manual.

7
Controllo per i-32V5 MIDI Air/water inverter chillers and heat pumps with axial fans
IS PROHIBITED:

Unauthorised access to the electrical panel.
To touch the systems if not autorised to do so.


To step on, sit down on and/or place any type of object on the appliance.
To spary or pour water directly on the appliance.
To touch the appliance when barefoot or part of the body are wet or damp.
-
lease the manufacturer from any civil or criminal responsibility.
CAUTION:








set contact the company.

personnel.
-
trical power.







PERSONAL PROTECTIVE EQUIPMENT
Refer to the user-installer manual included with the unit.
WORKERS' HEALTH AND SAFETY
Refer to the user-installer manual included with the unit.
SAFETY SIGNALS
Refer to the user-installer manual included with the unit.
REFRIGERANT SAFETY DATA SHEET
Refer to the user-installer manual included with the unit.
4. 
The unit has a 4-digit display with integrated keypad, the main funcons and menu navigaon are described below. Normally, if the unit is
switched on, the display shows the water outlet temperature in degrees Celsius or the alarm code, if acve.

Controllo per i-32V5 MIDI Air/water inverter chillers and heat pumps with axial fans
8
DISPLAY
KEYS
Select the operang mode and manually reset any alarms.
Each me you press the key you have the following sequence:
OFF -> COOL -> COOL+SAN* -> HEAT -> HEAT+SAN* -> OFF (*= if sanitary is enabled)
During parameter seg has the funcon of the back key.
Allows to enter the selected menu to view the sub-folders or to set a value (e.g. summer, winter and domesc set-points or various
parameters).
UP key allows to move to a higher menu or to increase the parameter value.
DOWN key allows to move to a lower menu or to decrease the parameter value.
LED
Cooling mode LED: is on if COOL or COOL+SAN mode is selected.
Heang mode LED: is on if HEAT or HEAT+SAN mode is selected.
Pump Led: is on if the pump is acve.
Alarm Led: is on if there are acve alarms.
Defrosng Led: ashes to enter defrosng mode, it is on when defrosng is in progress.
Compressor Led: ashes if the compressor is starng up, it is on if the compressor is acve.
Sanitary led: ashes if sanitary producon is in progress, it is on if COOL+SAN or HEAT+SAN mode is selected and sanitary produc-
on is not in progress.
Led KA resistors: is on if the anfreeze resistors are acve.

9
Controllo per i-32V5 MIDI Air/water inverter chillers and heat pumps with axial fans
MENU
The items controlled by the main menu are listed below. Some of this are only visible to the installer, who must access to the PSS menu to enter
the password and enable higher privilege access.
MENU LABEL LEVEL OTHER CONDITIONS
Setpoint Set User Not accessible if connected at Hi-T2
Password PSS User ---
Alarms Err User Only if acve alarms
Probes tP Installer ---
Digital inputs Id Installer ---
Parameters Par Installer ---
Hours of oper-
aon oHr Installer ---
Alarm log Hist Installer Only of the log contains data
Firmaware
Version Fir Installer ---
USB USb Installer Only with USB key with update les is present

Set
In this menu, it is possible to display and modify the various set-points.
Set DESCRIPTION DEFAULT RANGE UNIT
Coo First Summer setpoint 7.0 5 ÷ Coo2 °C
Hea First Winter setpoint 45.0 Hea2 ÷ 60 °C
*San Sanitary setpoint 48.0 25 ÷ 60 °C
Coo2 Second Summer setpoint 18.0 Coo ÷ 25 °C
Hea2 Second Winter setpoint 35.0 25 ÷ Hea °C
(*) If sanitary funcon is enabled, see par. 12.

Enter the password for the desired access level. Conrming the value with the PRG key automacally acvates the access level and the menu
items enabled by that level will appear. Once you have exited the menus completely, the password privilege is lost and must be entered again.
Err
This menu allows you to see all acve alarms, if any. For more details see par. 9.
tP
Entering with the installer password, the values of the present temperature and pressure sensors can be read in this menu.
tP DESCRIPTION UNIT
t01 Water inlet temperature °C
t02 Water outlet temperatura °C
t03 Compressor sucon temperature °C
t04 Compressor discharge temperature °C
t05 Outside air temperature °C
t06 Domesc hot water temperature (if enabled) °C
t07 System remote probe temperature (if enabled) °C
t09 Low pressure bar
t10 High pressure bar
The number of visible probes depends on the presence or absence of expansion modules.
Parcular situaons:
Err: probe faulty
--- = probe not used (no funcon associated to that probe)

Controllo per i-32V5 MIDI Air/water inverter chillers and heat pumps with axial fans
10
Id
Entering with the installer password, the status of the digital inputs can be view in this menu:
0 = input disabled
1 = input enabled
--- = input not congured

Par
Entering with installer password, in this menu you can modify the the main parameters of the unit. The parameters are collected in groups, each
group is idened by a three-digit code, while the index of each parameter is preceded by a leer.
Par DESCRIPTION INDEX OF THE PARAMETER
CnF Conguraon H--
ALL Alarms A--
CP Compressor C--
rE Regulaon b--
PUP Pump P--
Fro Electrical resistances r--
dFr Defrosng d--
LbH Minimum Hz L--
rEC Desuperheater rE
oHr
Entering with the installer password this menu displays the operang hours of the compressor (oH1) and of the circulator (oHP1).
It is possible to reset the displayed count by pressing the ESC key for 3 seconds
HiSt
This menu appears, aer entering the installer password, only if there is data in the alarm log.
Fir
Entering with the installer password, in this menu you can read rmware version (uEr), revision (rEu) and sub-revision (SUb).

This menu appears, aer entering the installer password, only if a USB key containing the relevant update les is connected to the card. The
available funcons are described below.
CAUTION: The access to the electrical panel is only allowed to QUALIFIED PERSONNEL.
FIRMWARE UPDATE [UPdF]
In case of rmware update, the following steps are necessary:
1. Copy the upgrade les into the main directory of a USB pen;
2. Set the unit to OFF on the keypad and remove power by seng the main switch to OFF;
3. Insert the ash drive into the USB port on the control;
4. Power up the unit, seng the mains witch to the ON posion;
5. Access the rmware update menu and start the procedure through the following sequence: PRG -> PSS -> PRG -> (enter installer password)
-> PRG -> USB -> UPdF -> PRG
6. A countdown advances on the display, at the end of the procedure the word "boot" appears and the 4 LEDs light up in sequence;
7. Switch o the unit, posioning the main switch on the OFF status;
8. Remove the drive from the USB port;
9. Switch the unit on by turning the main switch to the ON posion.
PARAMETERS UPDATE [UPPA]
In case of parameters update, the following steps are necessary:
1. Copy the upgrades les into the main directory of a USB pen;
2. Set the unit to OFF on the keypad and remove power by seng the main switch to OFF;
3. Insert the ash drive into the USB port on the control;