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Typical Indoor Refrigerant Pipe Installation Criteria

Environment Condition

(1) Indoor Condition, θm at 28 ℃, 80% RH, Still Air

(2) Dew Point, θd=24.4℃

Material Technical Factor

(1) Thermal Conductivity, λ<0.037W/m.K (at 20℃ mean Temp.)

(2) Surface Coefficient, h=10 (Black Matt Surface)

(3) Fluid Operating Temperature, θ1=20℃

Other Factors Considered

(1) Global warming effect

(2) Safety margin

(3) Energy Efficiency

Remarks : The Environment Conditions Extracted From official website : www.eld.emsd.gov.hk of EMSD