MAXA i-32V5H MIDI 0121 Technical Bulletin
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MAXA i-32V5H MIDI 0121 Technical Bulletin

Chiller and inverter air/water heat pumps with axial fan
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Chiller and Inverter Air/Water heat pumps with axial fan
Technical Bulletin
Model
i-32V5H MIDI 0121
i-32V5H MIDI 0126
i-32V5H MIDI 0128
i-32V5H 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-32V5H MIDI 0121

  • Page 1 Chiller and Inverter Air/Water heat pumps with axial fan Technical Bulletin Model i-32V5H MIDI 0121 i-32V5H MIDI 0126 i-32V5H MIDI 0128 i-32V5H 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 i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan 01-2021 First emission Date Compiled Approved Note Code Serie BTE01040101001.00_i-32V5 Midi_EN Chiller and Inverter Air/Water heat pumps with axial fan...

  • Page 3: Table Of Contents

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps 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 ......................
  • Page 4 9.3 SANITARY ........................31 9.4 DATA FOR ENERGY CERTIFICATION OF BUILDINGS ACCORDING TO UNI/TS 11300-4 FOR HEAT PUMPS........................32 9.4.1 Model i-32V5H MIDI 0121 ..................32 9.4.2 Model i-32V5H MIDI 0126 ..................33 9.4.3 Model i-32V5H MIDI 0128 ..................33 9.4.4 Model i-32V5H MIDI 0132 ..................34 9.5 EER VALUES FOR CALCULATING THE ENERGY PERFORMANCE OF BUILDINGS ACCORD-...

  • Page 5: Description Of Unit And Technical Specifications

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan 1. DESCRIPTION OF UNIT AND TECHNICAL SPECIFICATIONS The heat pumps in this series were designed for residential and commercial applications. They are extremely versatile and are designed for heat pump operation with hot water production for space heating and sanitary use at a temperature of 60°C. The use of the brushless inverter compressor technology, combined with the electronic expansion valve, the circulator and the variable speed fan, optimise the consumption and operating efficiency of the cooling components.

  • Page 6: Electrical And Control Panel

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan CO/EV1 RD/RS DS 1 P-DS1 EEV1 DHW-OUT DHW-IN SBSV 1 PSH1 INVC1 RS/RD LEGEND INVC VARIABLE SPEED COMPRESSOR LIQUID SEPARATOR CO/EV FINNED BATTERY YISV 4-WAY VALVE REVERSE CYCLE EV/CO PLATE EXCHANGER SUBCOOLING BYPASS LINE ELECTRONIC EXPANSION VALVE...

  • Page 7: Control And Protection Devices

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan • Phase sequence control relays; • Phase sequence control relay with minimum/maximum voltage setting (optional); • Thermostatically controlled ventilation inside the electrical panel; • GI module - system management. (optional or for versions that require it). The control section includes: •...

  • Page 8: List Of Accessories

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan System management Accessory - battery Unit version Thermal capacity Water pipe configuration Injection (LT) Silencing Antifreeze kit accessory Electrical variants Accessory 1 Code Order code module treatment 0110820# Reversible heat pump BT version on heat pump...

  • Page 9: Description Of Accessories

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan 2.3 DESCRIPTION OF ACCESSORIES 2.3.1 Factory-fitted accessories Cu/Al battery with anti-corrosion treatment finned pack heat exchanger with copper tubes and aluminium fins, treated with a special polyurethane-based paint for corrosion protection. The treatment makes the coil flexible to resist thermal expansion and contraction, mechanically resistant, UV protected and dirt repellent.
  • Page 10 PC ( through the " my.maxa.it" portal) or smartphone (through the app that can be downloaded from the "My Maxa" online store). It allows winter...

  • Page 11: Installation

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan Remote display Touch screen (Hi-T2) touch screen remote control for centralised management of a chiller/heat pump network, it integrates humidity and tem- perature sensors for thermo-hygrometric analysis of the environment and management of the double set point for under- floor radiant systems using a dehumidification system.

  • Page 12: Detail Of Connections And Location

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps 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-32V5H Midi Shipping weight [kg] Weight in service [kg] 0121 0126 0128...

  • Page 13: Technical Service Areas

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan 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. It is good practice to create a support slab of adequate size for the unit.
  • Page 14 MIDI Chiller and Inverter Air/Water heat pumps with axial fan MODEL i-32V5H Midi 0121, 1500 0126 i-32V5H Midi 0128, 1500 0132 Obstruction or covering of ventilation openings must be avoided. For installations in locations with strong winds refer to the area classification according to the Beaufort scale. If the value is ≥...

  • Page 15: Hydraulic Circuit

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan 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 16: System Water Specifications

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan 3.3.1 System water specifications To ensure that the unit functions properly, the water must be adequately filtered (see the beginning of this section) and the quantity of dissolved substances must be minimal. The maximum permitted values are listed below. MAXIMUM PERMITTED CHEMICAL AND PHYSICAL CHARACTERISTICS OF THE SYSTEM WATER 7,5 - 9 Electrical conductivity...

  • Page 17: Hydraulic Diagram Inside The Unit

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan to sanitary users from water supply LEGEND i-32V5H-DS MIDI - HEAT PUMP WITH DESUPERHEATER Hi-T2 REMOTE CONTROLLER VDIS3 - DIVERTER VALVE SAS - SANITARY PROBE CADDY - WATER STORAGE WITH DOMESTIC HOT WA- FANCOIL TERMINALS TER EXCHANGER PUFFROLLER - TECHNICAL WATER STORAGE...

  • Page 18: Minimum Water Content And Hydraulic Circuit Volumes

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan LEGEND PLATE HEAT EXCHANGER W-IN WATER INLET DRAIN TAP W-OUT WATER OUTLET SAFETY VALVE ELECTRONIC CIRCULATOR TE IN WATER INLET TEMPERATURE PROBE AUTOMATIC AIR VENT VALVE TE OUT USER OUTLET WATER TEMPERATURE PROBE FLOW SWITCH Accessory installed on board In any case, each unit includes a safety valve with 6 bar opening pressure.

  • Page 19: System Charging/Discharging

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan 3.3.6 System charging/discharging CAUTION: supervise all charging/reintegration operations. CAUTION: Before charging/reintegration the system, disconnect the power supply to the units. CAUTION: The charging/reintegration of the system must always take place under controlled pressure (1÷3 bar). Make sure that a pressure reducer and a safety valve have been installed on the charging/reintegration line.

  • Page 20: Technical Data

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan 4. TECHNICAL DATA 4.1 HEAT PUMP DATA SHEET i-32V5H MIDI TECHNICAL CHARACTERISTICS Unit 0121 0126 0128 0132 6,9 / 17,7 / 7,8 / 18,7 / 9,0 / 24,2 / 10,1 / 26,0 / Cooling capacity (1) min/nom/max 18,0* 22,7*...

  • Page 21: Data Sheet Unit With Desuperheater

    14,60 The useful heads of the circulator associated with the desuperheater are shown below. The operating points shown in the previous table are also represented. Models i-32V5H Midi 0121, 0126 Models i-32V5H Midi 0128, 0132 Useful head of circulator associ-...

  • Page 22: Unit And Auxiliary Electrical Data

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan i-32V5H Midi 0126 i-32V5H Midi 0132 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 4.3 UNIT AND AUXILIARY ELECTRICAL DATA Unit power supply V/~/Hz 400/3PH+PE/50 On-board control circuit...

  • Page 23: Correction Factors Depending On Altitude

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan Descrption Value hydronic circuit safety valve 6 bar *Check that the antifreeze mixture concentration is suitable for the freezing temperature. 5.4 CORRECTION FACTORS DEPENDING ON ALTITUDE The correction factors for performance as a function of altitude are calculated for cooling under the conditions (1) and for heating under the conditions (3) in the above technical data tables and are given for altitudes of 500, 1000, 1500 and 2000 m.

  • Page 24: Hydronic Group Data Dati Del Gruppo Idronico

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan 6. HYDRONIC GROUP DATA DATI DEL GRUPPO IDRONICO 6.1 USEFUL HEAD Di seguito si riportano le curve caratteristiche prevalenza-portata al netto delle perdite di carico del kit idronico. On each curve the optimal working point corrisponding to condition (1) of the technical data table is highlighted.

  • Page 25: Circulator/Pump Curves

    3,00 3,00 3,62 3,62 4,31 4,31 5,06 5,06 5,87 5,87 6,74 6,74 7,67 7,67 8,66 8,66 9,71 9,71 6.3 CIRCULATOR/PUMP CURVES We report the range of useful heads that the machine guarantees during circulator modulation. i-32V5H Midi 0121, 0126 m [l/s]...

  • Page 26: Sound Emissions

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan i-32V5H Midi 0128, 0132 m [l/s] 7. SOUND EMISSIONS The sound levels refer to a fully loaded units at standard nominal conditions in accordance with EU Regulation 813/2013.The tolerance on the value of the total sound power level is 2 dB(A).

  • Page 27: Operating Limits

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan 8. OPERATING LIMITS 8.1 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 Insufficient water flow rate can cause evaporation temperatures too low with the intervention of the safety devices and the...
  • Page 28 i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan HEAT PUMP MODE Envelope heating Taria [°C] CHILLER MODE Envelope cooling Taria [°C] Cooling Cooling BT DOMESTIC HOT WATER MODE Envelope sanitario Taria [°C]...

  • Page 29: Performance Tables

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan 9. PERFORMANCE TABLES The table show the capacity, power input and efficiency values for different outside air temperatures. The data shown are calculeted according to EN 14511:2018. They are indicative and may be subject to chang. 9.1 HEATING HEATING Tout [°C]...

  • Page 30: Cooling

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan 9.2 COOLING COOLING Tout [°C] 15,2 3,25 4,68 16,1 3,25 4,95 17,7 3,25 5,45 17,5 2,50 7,00 19,1 2,49 7,67 20,8 2,47 8,42 15,9 3,94 4,04 16,8 3,92 4,29 18,7 3,99 4,69 18,7...

  • Page 31: Sanitary

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan 9.3 SANITARY The tables show the values of heating capacity, power input and COP for different outside air temperatures during the summer season fot tech- nical water at 45 / 50 / 55°C for the production of domestic hot water. The data shown are indicative and may subject to change. HEATING Tout [°C] 18,9...

  • Page 32: Data For Energy Certification Of Buildings According To Uni/Ts 11300-4 For Heat Pumps

    Declared Capacity - output of the heat pump under operating conditions A, B, C, D COP of the heat pump referred to nominal conditions DC COP della pompa di calore nelle condizioni di parzializzazione definite dalla norma UNI EN 14825 9.4.1 Model i-32V5H MIDI 0121 Operating limits COLD source...

  • Page 33: Model I-32V5H Midi 0126

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan 9.4.2 Model i-32V5H MIDI 0126 Operating limits COLD source OUTDOOR AIR Operating temperature (cut-off) -20°C 35°C HOT source WATER Operating temperature (cut-off) 25°C 60°C Useful heating capacity / COP at nominal conditions with defrosting contibution Useful heating capacity [kW] (hot source) (hot source)

  • Page 34: Model I-32V5H Midi 0132

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan Useful heating capacity / COP at nominal conditions with defrosting contibution Useful heating capacity [kW] (hot source) (hot source) (cold water (cold water source) source) 21,7 21,2 20,9 2,62 2,21 1,86 27,0...
  • Page 35 i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan Operating conditions A (E) 2,29 2,57 3,94 5,03 6,96 2,34 2,53 3,54 4,09 4,90 Performances 35 °C SCOP ηs Energy class 4,02 158%...

  • Page 36: Eer Values For Calculating The Energy Performance Of Buildings Accord- Ing To Uni/Ts 11300-3

    Charge factor Outside air dry bulb temperature outlet 100% 12/7 *)/7 *)/7 *)/7 *) Temperature determined by water flow rate at full load. 9.5.1 Model i-32V5H MIDI 0121 Outside air dry bulb Charge factor Cooling capacity temperature [°C] [kW] 100% 3,00 17,7...

  • Page 37: Model I-32V5H Midi 0128

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan 9.5.3 Model i-32V5H MIDI 0128 Outside air dry bulb Charge factor Cooling capacity temperature [°C] [kW] 100% 3,01 24,1 4,12 17,7 5,38 11,3 5,67 12,3 Charge factor F% EER @20°C xC 0,95 6,15 0,94...

  • Page 38: Refrigerant Safety Sheet

    i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan REFRIGERANT SAFETY 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.
  • Page 39 i-32V5H MIDI Chiller and Inverter Air/Water heat pumps with axial fan...
  • Page 40 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-32v5h midi 0126I-32v5h midi 0128I-32v5h midi 0132

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