MAXA bi-32V5C MIDI 0128, Технический бюллетень

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i-32V5C MIDI
Inverter Air/Water chillers with axial fan
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0 0,2 0,4 0,6 0,8 1 1,2 1,4 1,6 1,8 2 2,2 2,4 2,6
p [kP
a]
ṁ [m 3 /h]
i-32V5C Midi 0126
p ToutDS=45°C ToutDS=55°C
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0 0,2 0,4 0,6 0,8 1 1,2 1,4 1,6 1,8 2 2,2 2,4 2,6
p [kP
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ṁ [m
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i-32V5C Midi 0132
p 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 12/1/50
Remote control circuit V/~/Hz 12/1/50
Fan power supply V/~/Hz 400/3PH+PE/50
NOTE: Electrical data is subject to change due to updating. It is therefore always necessary to refer to the technical characteristics label at -
tached to the unit.
6. CORRECTIVE FACTORS
6.1 CORRECTION FACTORS FOR USE OF WATER-GLYCOL MIXTURE
The correction factors for water flow rate and pressure drop must be applied to the values obtained without the use of glycol. The correction
factor for water flow rate shall be calculated to maintain the same temperature difference as would be obtained without the use of glycol. The
pressure drop correction factor is applied to the water flow rate value corrected by the water flow rate correction factor.
Percentage of glycol Freezing point [°C] Yeld correction factor
Power input correc-
tion factors
Water flow correc -
tion factor
Pressure drop correc-
tion factor
10% -3,2 0,985 1 1,02 1,08
20% -7,8 0,98 0,99 1,05 1,12
30% -14,1 0,97 0,98 1,10 1,22
40% -22,3 0,965 0,97 1,14 1,25
50% -33,8 0,955 0,965 1,2 1,33
6.2 SCALING CORRECTION FACTORS
The correction factors due to contamination of the internal gas/water exchanger are shown below.
m² °C/kW Correction factor of the yeld power Powwr input correction factor
0,44 x 10-¹ 1,00 1,00
0,88 x 10-¹ 0,99 1,00
1,76 x 10-¹ 0,98 1,00
6.3 CALIBRATIONS AND PROTECTIONS CONTROLS
Description Value
High pressure switch 42,8 bar
High pressure alarm 41,5 bar
Low pressure alarm 3,5 bar