Normal operation pressure
You can check the excess or the deficiency of the refrigerant in comparision with the following charts and actual pressure
measurement.
The following checking procedure is useful during test run and maintenance work.
MODEL RAS-(2-6)HVRN(1)(S)(E)
Cooling operation Heating operation
Discharge pressure Pd (MPa)
Discharge pressure (MPa)
Outdoor unit temp. (DB ºC)
Indoor unit inlet temp. (WBºC)
Discharge pressure Pd (MPa)
Discharge pressure (MPa)
Indoor unit temp. (DB ºC)
Outdoor unit inlet temp. (WBºC)
Suction pressure Ps (MPa)
Suction pressure (MPa)
Outdoor unit temp. (DB ºC)
Indoor unit inlet temp. (WBºC)
Suction pressure Ps (MPa)
Suction pressure (MPa)
Indoor unit temp. (DB ºC)
Outdoor unit inlet temp. (WBºC)
N O T E
• (*) When ambient temperature is less than 30 ºC, outdoor fan volume decrease.
7 Test Run
190
SMGB0060 rev. 1- 12/2010
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