Data Aire gForce Ultra, Installation, Operation & Maintenance Manual

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gForce Ultra IOM
71
Type L Copper Tubing Internal Volume
Table 21 Type L Copper Tubing Internal Volume
Nominal Tubing
Size
Inches (mm)
Tubing OD
Inches (mm)
Volume per Foot
of Tubing,
Gallons (Liters)
Volume per 100 Feet
of Tubing,
Gallons (Liters)
1/2 (12.7) 0.63 (16) 0.0121 (0.046) 1.21 (4.58)
5/8 (16) 0.75 (19) 0.0174 (0.066) 1.74 (6.59)
3/4 (19) .875 (22) 0.0251 (0.095) 2.51 (9.50)
1 (25.4) 1.125 (29) 0.0429 (0.162) 4.29 (16.2)
1-1/4 (31.6) 1.375 (35) 0.0655 (0.248) 6.55 (2.48)
1-1/2 (38.1) 1.625 (41) 0.0925 (0.350) 9.25 (35.0)
2 (50.8) 2.125 (54) 0.161 (0.350) 16.1 (60.9)
2-1/2 (63.5) 2.625 (66.7) 0.248 (0.939) 24.8 (93.9)
3 (76.2) 3.125 (79.4) 0.354 (1.34) 35.4 (134)
Freezing Point of Aqueous Solutions
Table 22 Freezing Point of Aqueous Solutions
Ethylene Glycol,
% by Volume
Freezing Point,
Degrees F (C)
Propylene Glycol,
% by Volume
Freezing Point
Degree F (C)
0 32 (0) 0 32 (0)
10 24 (-4.4) 10 27 (-2.8)
20 15 (-9.4) 20 18 (-7.8)
30 4 (-15.6) 30 8 (-13.3)
40 -13 (-10.6) 40 -6 (-14.4)
NOTE: Risk of a leaking coil due to freezing and/or corrosion. Can cause
equipment and serious building damage.
Mixing Glycol and Water
If possible, it is recommended to purchase the antifreeze solution already pre-mixed by the
manufacturer. If this is not the case, always pre-mix the glycol and water prior to adding to the system.
The chemical reaction between the two will release oxygen. Oxygen is extremely undesirable in a
closed loop system.