Samsung MXJ-YA1509 Series Installation Manual page 46

2. 2.
Preparation for installation Preparation for installation
Problem analysis Problem analysis
R22 gauge was used in R410a system. R22 gauge was used in R410a system.
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Consequence Consequence
If you use R22 gauge, remaining oil inside can generate If you use R22 gauge, remaining oil inside
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wax type material which definitely badly affect POE oil of wax type material which definitely badly affect POE oil of
R410a system, possibly clogging refrigerant passage or R410a system, possibly clogging refrigerant passage or
causing compressor failure.
causing compressor failure.
Standard procedure Standard procedure
Never utilize R22 gauge for R410a system to prevent Never utilize R22 gauge for R410a system to prevent
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the mineral oil the mineral oil from flowing in to the R410a system. from flowing in to the R410a system.
Use the measuring instruments that meets the standard Use the measuring instruments that meets
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requirement. requirement.
High pressure side : -0.1 ~ 5.3MPa High pressure side :
Low pressure side : -0.1 ~ 3.8MPa Low pressure side :
Proper method Proper method
Install in accordance with the standards.
Install in accordance with the standards.
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can generate
the standard
-0.1 ~ 5.3MPa
-0.1 ~ 3.8MPa