SMC Networks HRSH100-A 20 Series - Page 113

HRX-OM-Q026
Chapter 5 Display and Setting of Various Functions
HRSH Series 5.20 Fan motor output upper limit setting
5-47
5.20 Fan motor output upper limit setting
5.20.1 Fan motor output upper limit setting
If heat from the product cannot be sufficiently radiated due to a rise in the
ambient temperature, a lack of ventilation, high elevation, etc., the refrigerant
circuit pressure on the high pressure side will rise. As a result, the
compressor will overload, affecting product performance and life.
If the refrigerant circuit high pressure exceeds the values in the table below,
please review the installation environment or change the fan motor output
upper limit value to a higher value to reduce the pressure.（*）
* Fan motor output upper limit can not be changed for HRSH300-A.
Refer to "5.5 Check monitor menu" for details on how to check the value of the refrigerant circuit
pressure on the high Pressure side.
Table5.20-1 Refrigerant circuit high pressure target value
Model
Refrigerant circuit high pressure
target value
HRSH100-A
2.50MPa
HRSH150-A
2.90MPa
HRSH200-A
3.45MPa
HRSH250-A
3.10MPa
HRSH300-A
3.00MPa
⚫ Changing the fan motor output upper limit may increase noise.
⚫
If the high pressure of the refrigerant circuit exceeds the target value even if
the fan motor output upper limit value is 100%, it is necessary to review the
installation environment.