MAXA i-32V5C MIDI 0121 Technical Bulletin
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MAXA i-32V5C MIDI 0121 Technical Bulletin

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Inverter Air/Water chillers with axial fan
Technical Bulletin
Models
i-32V5C MIDI 0121
i-32V5C MIDI 0126
i-32V5C MIDI 0128
i-32V5C MIDI 0132
This manual has been created for informative purpose. The company declines any responsibility for the results of any projecting or any installation based on the
explanations and/or on the technical specifications provided in this manual. It is besides forbidden the reproduction under any form of the texts of the figures
contained in this manual. This manual is a translation from the official 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 time. In case of any dispute, the original
languate manual will be the trusted one. Even partial reproduction PROHIBITED © Copyright - Advantix SpA
www.maxa.it
R32

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Summary of Contents for MAXA i-32V5C MIDI 0121

  • Page 1 Inverter Air/Water chillers with axial fan Technical Bulletin Models i-32V5C MIDI 0121 i-32V5C MIDI 0126 i-32V5C MIDI 0128 i-32V5C MIDI 0132 This manual has been created for informative purpose. The company declines any responsibility for the results of any projecting or any installation based on the explanations and/or on the technical specifications provided in this manual.
  • Page 2 0121, 0126 data update for fan change, added data version BT, change of Lw values, added 10-2021 data version SL, UNI/TS 11300-4 and 11300-4 data modification, circulator curves update, added minimum Hz function description 01-2021 First emission Date Compiled Approved Note Code Serie...

  • Page 3: Table Of Contents

    i-32V5C MIDI Inverter Air/Water chillers with axial fan CONTENTS 1. DESCRIPTION OF UNIT AND TECHNICAL SPECIFICATIONS ..........5 1.1 FRAMEWORK ....................... 5 1.2 COMPRESSORS ......................5 1.3 AIR SIDE HEAT EXCHANGER ..................5 1.4 UTILITY SIDE HEAT EXCHANGER................... 5 1.5 FAN ..........................5 1.6 COOLING CIRCUIT ......................5 1.7 ELECTRICAL AND CONTROL PANEL ................
  • Page 4 7.1 USEFUL HEAD ......................23 7.2 PRESSURE DROP Y-FILTER ACCESSORIES ..............23 7.3 CIRCULATOR /PUMP CURVES ..................24 8. NOISE LEVEL ........................25 8.1 POWERS AND SOUND PRESSURES STANDARD VERSION ........... 25 8.2 POWERS AND SOUND PRESSURES Sl VERSION ............25 9. OPERATING LIMITS ......................26 9.1 WATER FLOW RATE AT THE EVAPORATOR ..............

  • Page 5: Description Of Unit And Technical Specifications

    i-32V5C MIDI Inverter Air/Water chillers with axial fan 1. DESCRIPTION OF UNIT AND TECHNICAL SPECIFICATIONS The refrigerant chillers in this series are designed for residential and commercial applications. The use of brushless inverter compressor technol- ogy, combined with an electronic expansion valve, circulator and variable speed fan, optimise the consumption and operating efficiency of the cooling components.

  • Page 6: Electrical And Control Panel

    P-DS1 DS 1 PSH1 INVC1 EEV1 OUT1 LEGEND INVC VARIABLE SPPED COMPRESSOR LIQUID AND MOISTURE INDICATOR CONDENSER-FINNED BATTERY PEH TC HIGH PRESSURE TRANSDUCER PLATE EVAPORATOR-EXCHANGER PED TR LOW PRESSURE TRANSDUCER ELECTRONIC EXPANSION VALVE HIGH-PRESSURE SWITCH CHARGE CONNECTION HEAT EXCHANGER ANTIFREEZE RESISTOR FILTER DRYER TE SD SUCTION TEMPERATURE PROBE...

  • Page 7: Control And Protective Devices

    i-32V5C MIDI Inverter Air/Water chillers with axial fan • GI module - system management. (optional or for versions that require it). The control section includes: • Interface terminal with alphanumeric display; • Display function for set values, analogue inputs, fault codes, alarm history and parameter index; •...

  • Page 8: Description Of Accessories

    Supplied loose/ Description Accessory Standard Factory installed activatable after delivery Microchannel battery with Aero surface treatment Electronic expansion valve Electronic circulator Water-side safety valve Flow switch (indication of flow presence) Y-filter Remote accumulation probe Finned battery protection grids Rubber vibration dampers KA1 exchanger adhesive resistor Dry contact on/off remote Dynamic set point...

  • Page 9: Factory-Fitted Optional Accessories

    i-32V5C MIDI Inverter Air/Water chillers with axial fan Fan silent mode Digital input that can be activated by an external contact that allows the reduction of the sound power level by acting on the ventilation. The mode is particularly suitable during night operation. The decreases in capacity and sound power level when the "fan silent mode" function is active are shown below.

  • Page 10: Installation

    7-touch/HUB (Cloud/App) is a compact system consisting of an ultra-thin touch panel, including a temperature control unit and gateway for remote control from a PC (via the "my.maxa.it" portal) or smartphone (via the app downloadable from the "My Maxa" online store). It allows winter and summer climate control.

  • Page 11: Detail Of Connections And Location

    i-32V5C MIDI Inverter Air/Water chillers with axial fan 3.1.2 Detail of connections and location Hydraulic connections Model i-32V5C Midi IN/OUT 0121 1"M 0126 1"M 0128 1"1/4 M 0132 1"1/4 M 3.1.3 Weights Model i-32V5C Midi Shipping weight [kg] Operating weight [kg] 0121 0126 0128 0132...

  • Page 12: Technical Service Areas

    Model i-32V5C Shipping Operating A [mm] B [mm] [mm] [mm] Midi weight [kg] weight [kg] 0121, 0126 1600 1060 0128, 0132 1600 1060 The positions provided for the installation of vibration dampers for each type of machine are shown in the pictures below. 3.2 TECHNICAL SERVICE AREAS All models in the series are designed and constructed for outdoor installation.
  • Page 13 It is very important to avoid recirculation phenomena between suction and delivery, otherwise the performance of the unit will deteriorate or even interrupt normal operation. In this respect it is absolutely necessary to guarantee the minimum service spaces indicated below. MODEL i-32V5C Midi 0121, 1500 0126 i-32V5C Midi 0128,...

  • Page 14: Hydraulic Circuit

    Covering with canopies or positioning near plants or walls should be avoided in order to prevent air circulation. In the case of winds with speeds in excess of 13.9-17.1 m/s (strong winds ac- cording to the Beaufort scale), the use of windbreaks is recommended. It is always advisable to make an environmental impact assessment based on the power and sound pressure data given in the technical data chapter and the sound emission limits based on the installation area of the unit, with reference to the DPCM of 14/11/1997.

  • Page 15: System Water Specifications

    i-32V5C MIDI Inverter Air/Water chillers with axial fan CAUTION: the expansion vessel, to be provided externally, must be suitably sized according to the type and volume of fluid, the variation of temperatures and pressures in the system. CAUTION: The return line from the system must be at the "WATER INPUT" label, otherwise the evaporator could freeze. CAUTION: It is compulsory to install a metal filter (with a mesh size of no more than 1 mm) and a dirt separator on the return pipe from the installation marked "WATER INPUT".

  • Page 16: Hydraulic Diagram Inside The Unit

    LEGEND i-32V5C MIDI - CHILLER PUFFROLLER - TECHNICAL WATER TANK Hi-T2 REMOTE CONTROLLER TERMINALS FANCOIL 4.1.2 Hydraulic diagram inside the unit The hydraulic diagram for connection to the unit is shown below OUT1 LEGEND PLATE HEAT EXCHANGER W-IN WATER INLET DRAIN TAP W-OUT WATER OUTLET SAFETY VALVE...

  • Page 17: Minimum Water Content And Hydraulic Circuit Volumes

    i-32V5C MIDI Inverter Air/Water chillers with axial fan LEGEND WATER TEMPERATURE PROBE USER TE OUT FLOW SWITCH OUTLET Accessory installed on board In any case, each unit includes a safety valve with 6 bar opening pressure. ATTENTION: It is recommended to connect the safety valve vent to a suitable conveyor/discharge. Otherwise the discharged water could stagnate around the unit and become a source of danger by slipping/falling.

  • Page 18: Air Vent Valve

    arranged on the water inlet and outlet in order to drain the liquid contained in the unit (to make the operation easier, it is advisable to install two external drain cocks on the water inlet and outlet interposed between the unit and the manual shutters). 4.1.6 Air vent valve The unit is equipped with an air vent valve that automatically eliminates the air accumulated inside the circuit, avoiding: undesirable effects such as premature corrosion and wear, lower efficiency and reduced...

  • Page 19: Technical Data

    i-32V5C MIDI Inverter Air/Water chillers with axial fan 5. TECHNICAL DATA 5.1 CHILLER DATA SHEET i-32V5C MIDI TECHNICAL CHARACTERSTICS Unità 0121 0126 0128 0132 7,80 / 20,7 / 8,80 / 25,8 / 10,1 / 28,1 / 11,2 / 31,8 / Cooling capacity (1) min/nom/max 24,7* 27,1* 30,8*...

  • Page 20: Data Sheet For Desuperheater Unit

    26,6 The useful heads of the circulator associated with the desuperheater are shown below. The operating points shown in the previous table are also represented. Model i-32V5C Midi 0121, 0126 Model i-32V5C Midi 0128, 0132 Useful head of the circulator...

  • Page 21: Unit And Auxiliary Electrical Data

    i-32V5C MIDI Inverter Air/Water chillers with axial fan i-32V5C Midi 0132 i-32V5C Midi 0126 ṁ [m ṁ [m ToutDS=45°C ToutDS=55°C ToutDS=45°C ToutDS=55°C p [kPa] Useful prevalence ṁ [m3/h] water flow rate 5.3 UNIT AND AUXILIARY ELECTRICAL DATA Unit power supply V/~/Hz 400/3PH+PE/50 On-board control circuit V/~/Hz...

  • Page 22: Correction Factors Depending On Altitude

    Description Value Maximum number of restarts/hours after high/low pressure alarm (manual reset) Antifreeze protection (standard version/ BT version) 3°C / -10°C* Water circuit safety valve 6 bar * Check that the antifreeze mixture concentration is suitable for the freezing temperature. 6.4 CORRECTION FACTORS DEPENDING ON ALTITUDE The correction factors for performance as a function of altitude are calculated for cooling under the conditions (1) in the above technical data tables and are given for altitudes of 500, 1000, 1500 and 2000 m.

  • Page 23: Hydronic Group Data

    i-32V5C MIDI Inverter Air/Water chillers with axial fan 7. HYDRONIC GROUP DATA 7.1 USEFUL HEAD The characteristic head-flow curves net of pressure drops of the hydronic kit are shown below. On each curve the optimal working point corre- sponding to condition (1) of the technical data table is highlighted. The system must be designed in such a way as to guarantee the nominal flow rate relative to the working points shown below.

  • Page 24: Circulator /Pump Curves

    9,73 15,03 11,29 17,25 12,96 19,63 14,75 22,16 16,65 24,85 18,66 7.3 CIRCULATOR /PUMP CURVES We report the range of useful heads that the machine guarantees during circulator modulation. i-32V5C Midi 0121, 0126 m [l/s] i-32V5C Midi 0128, 0132 m [l/s]...

  • Page 25: Noise Level

    i-32V5C MIDI Inverter Air/Water chillers with axial fan 8. NOISE LEVEL The sound levels refer to fully loaded units at standard nominal conditions, in accordance with EU Regulation 2016/2281. The tolerance on the value of the total sound power level is 2 dB(A). The value is determined in accordance with EN 12102-1:2017, used in conjunction with UNI EN ISO 9614-2, which describes how to test with the intensimetric method.

  • Page 26: Operating Limits

    80,0 75,0 70,0 65,0 60,0 55,0 50,0 45,0 40,0 35,0 30,0 25,0 20,0 15,0 10,0 f [Hz] 0121 0126 0128 0132 9. OPERATING LIMITS 9.1 WATER FLOW RATE AT THE EVAPORATOR The nominal water flow rate refers to a temperature difference between the inlet and outlet of the evaporator of 5°C. The maximum permissible flow rate is the one with a temperature difference of 3°C and the minimum is the one with a temperature difference of 8°C at nominal conditions as indicated in the data sheet.
  • Page 27 i-32V5C MIDI Inverter Air/Water chillers with axial fan Below are the graphical operating limits. A = the maximum Hz function has no effect Ta [°C] Cooling Cooling BT Ta [°C] Air temperature Tw [°C] Water temperature...

  • Page 28: Performance Table

    PERFORMANCE TABLE The tables show the capacity, power input and efficiency values for different outside air temperatures. The data shown are calculated according to EN 14511:2018. They are indicative and may be subject to change. 10.1 COOLING STANDARD VERSION COOLING Tout [°C] 19,4 3,75 5,17...
  • Page 29 i-32V5C MIDI Inverter Air/Water chillers with axial fan COOLING BT VERSION Tout [°C] 11,2 4,38 2,56 12,6 4,43 2,84 14,2 4,49 3,16 15,9 4,55 3,49 17,9 4,61 3,88 11,2 4,85 2,31 12,7 4,95 2,57 14,3 5,03 2,84 16,1 5,12 3,14 18,1 5,23 3,46...

  • Page 30: Eer Values For Calculating The Energy Performance Of Buildings Accord- Ing To Uni/Ts 11300-3

    10.3 EER VALUES FOR CALCULATING THE ENERGY PERFORMANCE OF BUILDINGS ACCORD- ING TO UNI/TS 11300-3 The cooling capacity values and EER coefficients under partial load conditions are shown. The reference conditions at partial load specified by the UNI/TS 11300-3 standard are illustrated below. EERs are also given for load factors lower than 25%.

  • Page 31: Model I-32V5 Midi 0128

    i-32V5C MIDI Inverter Air/Water chillers with axial fan 10.3.3 Model i-32V5 MIDI 0128 Outside air dry bulb Load factor Cooling capacity temperature[°C] [kW] 100% 3,39 28,1 4,36 21,0 5,25 14,0 6,15 11,9 Load factor F% EER @20°C xC 0,95 5,85 0,94 5,78 0,87 5,35...

  • Page 32: Refrigerant Safety Data Sheet

    REFRIGERANT SAFETY DATA SHEET Name: HAZARDS IDENTIFICATION Main hazards: Asphyxia� on. Specifi c hazards: Quick evapora� on could cause it to freeze. FIRST AID MEASURES General informa� on: Do not administer to people who are unconscious. Immediately remove to fresh air. Inhala�...
  • Page 33 i-32V5C MIDI Inverter Air/Water chillers with axial fan...
  • Page 36 ADVANTIX SpA Via S. Giuseppe Lavoratore 24, 37040 Arcole (VR) Italy Tel. (+39).045.76.36.585 E-mail: info@advantixspa.it www.maxa.it...

This manual is also suitable for:

I-32v5c midi 0126Bi-32v5c midi 0128I-32v5c midi 0132

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