Centrometal Arctic Mono Series Technical Manual
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Centrometal Arctic Mono Series Technical Manual

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HEATING TECHNIQUE
Centrometal d.o.o. - Glavna 12, 40306 Macinec, Croatia, tel: +385 40 372 600, fax: +385 40 372 611
R32
Technical manual
ENG
for installation, use and maintenance
of heat pump
Heat pumps Arctic
Mono series 22-30 kW
TU-DT-06-2022-ENG

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  • Page 1 HEATING TECHNIQUE Centrometal d.o.o. - Glavna 12, 40306 Macinec, Croatia, tel: +385 40 372 600, fax: +385 40 372 611 Technical manual for installation, use and maintenance of heat pump Heat pumps Arctic Mono series 22-30 kW TU-DT-06-2022-ENG...
  • Page 2 CONTENTS Part 1 General Informa on ................. 3 Part 2 Engineering Data ................8 Part 3 Installa on and Field Se ngs ............21 Technical manual Heat pumps - Mono...
  • Page 3 Part 1 General Informa on 1 System Configura ons ................4 2 Unit Capaci es ................... 5 3 Nomenclature .................... 5 4 System Design and Unit Selec on .............. 6 Technical manual Heat pumps - Mono...

  • Page 4: System Configura Ons

    Part 1 1 System Configura ons Heat pump Mono can be configured to run with the electric heater either enabled or disabled and can also be used in conjunc on with an auxiliary heat source such as a boiler. The chosen configura on affects the size of heat pump that is required. Three typical configura ons are described below. Refer to Figure 1-1.

  • Page 5: Unit Capaci Es

    Table 1-2.1: Unit capaci es range and appearances Capacity 22 kW 30 kW Model MHPA22RP24P3CM MHPA30RP24P3CM Appearance 3.Nomenclature Centrometal Power supply R: 3-phase, 380-415V, 50Hz Omi ed: 1-phase, 220-240V, 50Hz Model series number Refrigerant P: R32 Hea ng and cooling Unit capacity in kW...

  • Page 6: System Design And Unit Selec On

    Part 1 4 System Design and Unit Selec on 4.1 Selec on Procedure Step 1: Total heat load calcula on Calculate condi oned surface area Select the heat emi ers (type, quan ty, water temperature and heat load) Step 2: System configura on Decide whether to include AHS and set AHS’s switching temperature Decide whether backup electric heater is enabled or disabled Step 3: Selec on of outdoor units...
  • Page 7 Part 1 4.2 Heat Pump Leaving Water Temperature (LWT) Selec on The recommended design LTW ranges for different types of heat emi er are: § For floor hea ng: 30 to 35⁰C § For fan coil units: 30 to 45⁰C §...

  • Page 8: Table Of Contents

    Part 2 Engineering Data 1 Specifica ons ................... .. 9 2 Dimensions and Center of Gravity ............10 3 Piping Diagrams ..................11 4 Wiring Diagrams ..................12 5 Capacity Tables..................13 6 Opera ng Limits ..................16 7 Hydronic Performance ................17 8 Sound Levels ....................

  • Page 9: Specifica Ons

    Part 2 1 Specifica ons Table 2-1.1: MHPA22(30)RP24P3CM specifica ons Model name MHPA22RP24P3CM MHPA30RP24P3CM Power supply V/Ph/Hz 380- 415/3/50 Capacity 22000 30100 Hea ng(A7W35) Rated input 5000 7698 4.40 3.91 Capacity 22000 30000 Hea ng(A7W45) Rated input 6471 10345 3.40 2.90 Capacity 22000...

  • Page 10: Dimensions And Center Of Gravity

    Part 2 Hea ng ⁰C -25-35 Ambient temperature range ⁰C -25-43 Cooling ⁰C 5-25 Water se ng temperature range Hea ng ⁰C 25-60 ⁰C 30-60 Notes: 1. Relevant EU standards and legisla on: EN14511; EN14825; EN50564; EN12102; (EU) No 811/2013; (EU) No 813/2013; OJ 2014/C 207/02. 2.

  • Page 11: Piping Diagrams

    Part 2 3 Piping Diagrams Figure 2-3.1: MHPA22(30)RP24P3CM piping diagram Number Sensor name Sensor code Suc on pipe temperature sensor Discharge pipe temperature sensor Outdoor ambient temperature sensor Air side heat exchanger refrigerant outlet temperature sensor Water side heat exchanger refrigerant outlet (gas pipe) temperature sensor...

  • Page 12: Wiring Diagrams

    Part 2 4 Wiring Diagrams Figure 2-4.1: MHPA22(30)RP24P3CM wiring diagram Technical manual Heat pumps - Mono...

  • Page 13: Capacity Tables

    Part 2 5 Capacity Tables ： 5.1 Hea ng Capacity Tables (Test standard EN14511) Table 2-5.1: MHPA22RP24P3CM hea ng capacity - peak values Outdoor LWT (⁰C) air temp. ⁰C DB -25.0 10174 6756 1.51 9123 7154 1.28 -20.0 12899 6067 2.13 11566 6424 1.80 10234 6782 1.51 -15.0 20342 7021 2.90 19112 8206 2.33 17973 9705 1.85 16782 11251 1.49 14704 11423 1.29 22770 7972 2.86 22000 8861 2.48 21609 9866 2.19 21191 10901 1.94 18987 10952 1.73 12202 10922 1.12 8529 7893 1.08...
  • Page 14 Part 2 Table 2-5.3: MHPA30RP24P3CM hea ng capacity - peak values LWT (⁰C) Outdoor air temp. ⁰C DB -25.0 10495 7989 1.31 9553 8439 1.13 -20.0 13266 6606 2.01 12076 6976 1.73 10887 7347 1.48 -15.0 21600 6060 3.56 19955 8898 2.24 18873 11790 1.60 17740 14777 1.20 17283 16036 1.08 23336 7831 2.98 23038 9542 2.41 23147 11270 2.05 23245 13053 1.78 22937 14639 1.57 14692 13080 1.12 11046 9807 1.13 -7.0 24516 9090 2.70 24888 9928 2.51 25711 10959 2.35 26547 12019 2.21 26933 12887 2.09 22278 14100 1.58 16470 12795 1.29...
  • Page 15 Part 2 ： 5.2 Cooling Capacity Tables (Test standard EN14511) Table 2-5.5: MHPA22RP24P3CM cooling capacity Outdoor LWT (⁰C) temp. ⁰C DB PI EER CC PI EER CC PI EER CC PI EER CC PI EER 24059 5909 4.07 21857 5984 3.65 18920 6083 3.11 20753 7644 2.72 19982 8133 2.46 18394 8281 2.22 15755 8000 1.97 13996 7813 1.79 25547...

  • Page 16: Opera Ng Limits

    Part 2 6 Opera ng Limits Figure 2-6.1: Hea ng opera ng limits Outdoor temperature(℃) 5 12 25 35 55 60 Water flow temperature (℃) Figure 2-6.2: Cooling opera ng limits Outdoor temperature(℃) 5 10 Water flow temperature (℃) Figure 2-6.3: Domes c hot water opera ng limits Outdoor temperature(℃) 5 12 25 35...

  • Page 17: Hydronic Performance

    Part 2 7 Hydronic Performance Figure 2-7.1: MHPA22(30)RP24P3CM hydronic performance Available external sta c presurre VS Flow rate Ⅲ Ⅱ Ⅰ Flow rate (m Abbrevia ons: ESP: External sta c pressure Notes: I, II and III indicate water pump speed: I: Low II: Medium III: High.

  • Page 18: Sound Levels

    Part 2 8 Sound Levels 8.1 Overall Table 2-8.1: Sound pressure levels Model name dB(A) MHPA22RP24P3CM 59.8 MHPA30RP24P3CM 63.5 Notes: Sound pressure level is measured at a posi on 1m in front of the unit and (1+H)/2m (where H is the height of the unit) above the floor in a semi-anechoic chamber.
  • Page 19 Part 2 8.2 Octave Band Levels Figure 2-8.2: MHPA22RP24P3CM octave band levels Outdoor air temperature 7⁰C DB, 85% R.H. ; EWT 30 ⁰ C, LWT 35⁰C NR-90 Outdoor air temperature 7⁰C DB, 85% R.H.; NR-80 EWT 40⁰ C, LWT 45⁰C NR-70 NR-60 Outdoor air temperature 7⁰C DB, 85% R.H.

  • Page 20: Accessories

    Part 2 9 Accessories 9.1 Standard accessories Table 2-9.1: Standard accessories Name Shape Quan ty Name Shape Quan ty Technical manual Tighten belt for customer wiring use Thermistor for domes c hot water Service manual tank(T5) Y-shaped filter Extension wire for T5 Water outlet connec on pipe assembly Adapter for inlet water pipe Technical manual Heat pumps - Mono...
  • Page 21 Part 3 Installa on and Field Se ngs Preface to Part 3 .................. 22 Installa on ..................23 Water Pipework ................... 28 Electrical Wiring................... 32 DIP Switch Se ngs ................34 Internal Circula on Pump Speed Se ngs ..........35 Technical manual Heat pumps - Mono...

  • Page 22: Preface To Part 3

    Part 3 1 Preface to Part 3 1.1 Notes for Installers Boxes The informa on contained in this Technical manual may primarily be of use during the system design stage o f a heat pump Mono project. Addi onal important informa on which may primarily be of use during field installa on has been placed in boxes, such as the example below, tled “Notes for installers”.

  • Page 23: Installa On

    Part 3 2 Installa on Acceptance and Unpacking Notes for installers § When units are delivered check whether any damage occurred during shipment. If there is damage to the surface or outside of a unit, submit a wri en report to the shipping company. §...
  • Page 24 Part 3 In systems that are configured to heat domes c hot water and/or include an external backup electric heater, outdoor units should be installed in posi ons that are sufficiently close to the domes c hot water tank and/or backup electric heater that the piping and temperature sensor wiring length come within the allowable ranges.
  • Page 25 Part 3 Figure 3-2.3: Installa on room illustra on Cold Climate Installa on In cold climate loca ons installa on should take account of the following Figure 3-2.4: Snow shielding considera ons: ① Never install the unit at a site where the suc on side may be exposed directly to wind.
  • Page 26 Part 3 Figure 3-2.5: Outdoor unit typical concrete base structure design (unit: mm) (unit: mm) Φ10 Expansion bolt Rubber shocking proof mat ≥100 Solid ground ≥80 Concrete basement or roofing h≥100mm 2.8 Drainage Drainage ditch should be provided to allow drainage of condensate that may form on the air side heat exchanger when the unit is running in hea ng mode or domes c hot water mode.
  • Page 27 Part 3 Figure 3-2.8: Parallel connect the two units or above >300 >600 >3000 Figure 3-2.9: Parallel connect the front with rear sides >6000 >3000 >1000 >4000 >300 Technical manual Heat pumps - Mono...

  • Page 28: Water Pipework

    Part 3 3 Water Pipework Water Circuit Checks Heat pump Mono units are equipped with a water inlet and outlet for connec on to a water circuit. Heat pump Mono units should only be connected to closed water circuits. Connec on to an open water circuit would lead to excessive corrosion of the water piping.
  • Page 29 Part 3 To determine the maximum allowed water volume in the en re circuit, proceed as follows: Determine the calculated pre-pressure (Pg) for the corresponding maximum water volume using the Figure 3-3.1. Figure 3-3.1: Maximum water volume A1: System without glycol A2: System with 25% propylene glycol Pre-pressure = pre-pressure of the expansion vessel Maximum water volume = maximum water volume in...
  • Page 30 Part 3 Use a good thread sealant for sealing the connec ons. The sealing must be able to withstand the pressures and temperatures of the system. When using non-copper metallic piping, be sure to insulate the two kind of materials from each other to prevent galvanic corrosion.
  • Page 31 Part 3 That a glycol with corrosion inhibitors is selected to counteract acids formed by the oxida on of glycols. That in case of an installa on with a domes c hot water tank, only the use of propylene glycol is allowed. In other installa ons the use of ethylene glycol is fine.

  • Page 32: Electrical Wiring

    Part 3 4 Electrical Wiring 4.1 General Notes for installers Cau on § All installa on and wiring must be carried out by competent and suitably qualified, cer fied and accredited professionals and in accordance with all applicable legisla on. §...
  • Page 33 Part 3 A dedicated power circuit is required for the backup electric heater. Installa on equipped with a domes c hot water tank (field supplied) requires a dedicated power circuit for the immersion heater. Lay out the electrical wiring so that the front cover does not rise up when doing wiring work and a ach the front cover securely.

  • Page 34: Dip Switch Se Ngs

    Part 3 5 DIP Switch Se ngs DIP switch is located on the hydraulic module main control board and allows configura on of addi onal hea ng source thermistor installa on, the second inner backup heater installa on, etc. Table 3-5.1: DIP switch se ngs Switch ON=1 OFF=0...

  • Page 35: Internal Circula On Pump Speed Se Ngs

    Part 3 6 Internal Circula on Pump Speed Se ngs The internal circula on pump speed can be selected by adjus ng the red knob on the pump. The default factory se ng is the highest speed (III). If the system water flow is too high, the pump speed can be set to medium (II) or low (I). The rela onship between external sta c pressure and water flow rate is described in Part 2, 7 “Hydronic Performance”.
  • Page 36 Part 3 Warning signals The warning signal is indicated by the LED display. The fault signal LED and the SSM relay do not respond. The pump con nues to run with limited output. The indicated faulty opera ng status must not occur for a prolonged period. The cause must be eliminated. Figure 3-6.4: Warning signals Code No.
  • Page 37 Notes Technical manual Heat pumps - Mono...
  • Page 38 Company assumes no responsibility for possible inaccuracies in this book originated typographical errors or rewriting. All the pictures and diagrams are principal and it is necessary to adjust each actual situation on the field, in any case the company reserves the right to enter their own products such modifications as considered necessary. Centrometal d.o.o. Glavna 12, 40306 Macinec, Croatia central tel: +385 40 372 600, fax: +385 40 372 611 service tel: +385 40 372 622, fax: +385 40 372 621 www.centrometal.hr...

This manual is also suitable for:

Arctic mono mhpa22rp24p3cmArctic mono mhpa30rp24p3cm

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