MAXA i-MAX 0475 - Inverter Compressors Control in Cooling Mode; Inverter Compressors Control in Heating Mode

i-MAX Industrial inverter air/water heat pump with axial fans
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7.3.4 INVERTER COMPRESSORS CONTROL IN COOLING MODE
The management of the compressors depends on the ambient temperature and on the water temperature setpoint.
The PI type regulation with:
• ST = regulation temperature sensor
• Set cool (G01) = setting of cooling setpoint
• b01 = cooling regulator proportional band
• b05 = compressor control delta cut-off
• b25 = compressor regulation delta cut-on
• b07 = integral time
• HzMin = Minimum frequency of operation derived from the algorithms of limitation
• HzMaxReg = Maximum working frequency of the compressor in cooling mode based on the limitations described in the
previous paragraphs
466
475
485
695
6105
6115
b05 (°C)
0,5
0,5
0,5
0,5
0,5
0,5
b25 (°C)
2,5
2,5
2,5
2,0
2,0
2,0
7.3.5 INVERTER COMPRESSORS CONTROL IN HEATING MODE
The compressors are active in heating mode if the heat pump is enabled
• H09 = Configuration of the heat pump presence parameter (0 = Heat pump not present; 1 = heat pump is present)
• ST = regulation temperature sensor
• Set heat G02= setting of heating setpoint
• b02 = compressor regulation band in heat pump mode
• b05 = compressor control delta cut-off
• b25 = compressor regulation delta cut-on
• b07 = integral time
• HzMin = Minimum frequency of operation derived from the algorithms of limitation
• HzMaxReg = Maximum working frequency of the compressor in cooling mode based on the limitations described in the
previous paragraphs.
For the values of the parameters b05 and b25, please refer to the table reported in the previous paragraph.
The following curve shows the adjustment without integral component (b07 = 0)