Installation guide
Installation guide
39
39
3. Materials and Tools
3. Materials and Tools
Problem analysis
Problem analysis
R410a refrigerant system has relatively high pressure.
R410a refrigerant system has relatively high pressure.
If material does not meet the pressure-proof standards,
If material does not meet the pressure-proof standards,
then it may cause copper p
then it may cause copper pipe explosion.
ipe explosion.
Consequence
Consequence
Intensity and material specification doesn’t meet
Intensity and material specification doesn’t meet factory
factory
requirement and this could lead to explosion while using
requirement and this could lead to explosion while using
the product which could even bring personal injury.
the product which could even bring personal injury.
Standard procedure
Standard procedure
Installation material requirement
Installation material requirement
Material : phosphorous deoxidized copper, purple
Material : phosphorous deoxidized copper, purple
copper pipe
copper pipe
Analysis result shows that chemical component should
Analysis result shows that chemical component should
meet the below condition (KSD 1651)
meet the below condition (KSD 1651)
Cu
Cu
≥
≥
99.90% ; P
99.90% ; P : 0.015%~0.040%
: 0.015%~0.040%
Mechanical properties need to meet KSD 5301
Mechanical properties need to meet KSD 5301
Proper method
Proper method
Selecting copper pipe
Selecting copper pipe
C1220T-O(JIS) : Soft type
C1220T-O(JIS) : Soft type
C1220T-1/2
C1220T-1/2H(JIS) :
H(JIS) : Semi-hard type
Semi-hard type
Содержание MXJ-YA1509 Series
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