Hitachi RAS-4.0UFESNH1 - Checking Components; Check Refrigerant System

3. CHECKING COMPONENTS
See ----- Tube defrost.
Feel ----- The difference between tube’s temperature.
Test -----
Test pressure.
3. Checking components
3.1 Check refrigerant system
TEST SYSTEM FLOW
Conditions:
① Compressor is running.
② The air condition should be installed in good ventilation.
Tool: Pressure Gauge
Technique: ① see ② feel ③ test
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