Indoor temperature up pressure, low
pressure upIndoor temperature down high pressure,low pressure downOutdoor temperature up high pressure,low pressure up
Outdoor temperature down high pressure
,low pressure down
Indoor temperature up high pressure,
low pressure upIndoor temperature down high pressure,low pressure downOutdoor temperature up high pressure,low pressure up
Outdoor temperature down high pressure,
low pressure down
50
(Note 1) Approximate standard of temperature difference of air inlet and air outlet
(1) When setting in "cool" mode, after running at least 30 minutes, it is normal when the dry-bulb
temperature difference of air inlet and air outlet is over 10*. (When running at max. frequency).
(2) When setting in 'heat" mode, after running at least 30 minutes, it is normal when the dry-bulb
temperature difference of air inlet and air outlet is over 18*. (When running at max. frequency).
(Note 2) Approximate standard of running current value
It is normal when heat/cool is within *15% of nominal current value.
(When running at max. frequency).
Current value may have the following differences due to the different conditions:
When it is greater than standard current
(1) High indoor and outdoor temperature
(2) Improper radiating of outdoor unit
(When cooling)
when it is less than standard current
(1) Low indoor and outdoor temperature
(2) Gas leaking of refrigerant
(Insufficient refrigerant)
(Note 3) Approximate standard of running pressure
General standard is as follows:
Cool
High pressure 1.6~2.0 kgf/cm2
Indoor 18~32*
Outdoor 25~35*
Low pressure 0.35~0.55 kgf/cm2
Heat
High pressure 1.5~2.1 kgf/cm2
Indoor 15~25*
Outdoor 5~10*
Low pressure 0.3~0.45 kgf/cm2
Cool at max frequency
Heat at max. frequency
The value after 15 minutes running ( temperature is drybulb temperature*)
The trend of change of high pressure and low pressure cause due to condition change
Cool Heat
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