Thermo Pride Air Handlers ECM Blower 13/14 SEER (AH2) User Manual
Page 17
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2. LIQUID LINE is a single small tube connecting the outlet of the A/C condenser to the expansion valve
inlet on the A/C evaporator coil.
TUBING SIZE REFERENCE CHART
Tube Diameter for Total Line Length
0-50’
50-75’
75-100’
MODEL
Suction
Liquid
Suction
Liquid
Suction
Liquid
HP14241A1, HP14301A1,
AC14241E2, AC14301E2
3/4”
3/8”
7/8”
3/8”
1-1/8”
1/2”
HP14361A1, HP14421A1,
HP1448xA1, HP1460xA1
7/8”
3/8”
1-1/8”
1/2”
1-1/8”
5/8”
AC14361E2, AC14421E2,
AC1448xE2, AC1460xE2
7/8”
1/2”
1-1/8”
1/2”
1-1/8”
5/8”
NOTES:
For line lengths over 25’ adjust charge accordingly per foot of variation from chart.
.65 oz. per foot for 3/8” and 3/4” line set
.674 oz. per foot for 3/8” and 7/8” line set
.694 oz. per foot for 1/2” and 7/8” line set
.72 oz. per foot for 1/2” and 1” line set
.76 oz. per foot for 5/8” and 1-1/8” line set
These charges are to be used in conjunction with a liquid sub-cooling measurement for best performance.