AAON M2-036 - Manual (Page 48)

48
Table 3 - Freezing Points
% Glycol Ethylene
Glycol
Propylene
Glycol
20 18°F 19°F
30 7°F 9°F
40 -7°F -6°F
50 -28°F
-27°F
Piping systems should not exceed 10 ft/sec
velocity to ensure tube wall integrity and
reduce noise.
Table 4 - Coaxial Heat Exchanger Pressure Drops (WCC- & WHP-)
-002 -003 -004 -005
gpm psi gpm psi gpm psi gpm psi
3 1.9 6 2.3 8 3.3 7 1.6
5 4.3 8 3.7 10 4.8 11 2.8
7 7.4 10 5.3 12 6.7 15 4.6
-006 -008 -010 -013
gpm psi gpm psi gpm psi gpm psi
11 2.6 16 3.8 14 2 20 3.4
16 4.2 20 5.5 22 3.5 28 5.8
20 6.0 24 7.6 30 5.6 36 8.8
-016 -020 -025 -030
gpm psi gpm psi gpm psi gpm psi
28 3.6 28 2.3 40 3.9 56 4.1
36 5.3 44 3.9 56 6.6 72 6
44 7.8 60 6.1 72 10 88 8.9
-040 -050 -060
gpm psi gpm psi gpm psi
56 2.6 80 4.2 112 4.33
88 4.4 112 7.1 144 6.5
120 6.9 144 10.4 176 9.6
Do not exceed recommended
condenser fluid flow rates shown in
above table. Serious damage to or
erosion of the heat exchanger tubes
could occur.
CAUTION