Carrier 09FC020, Installation, Start-Up And Maintenance Instructions, Page: 23 / 72

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See the 09FC pressure drop Fig. 25-27 for reference. The
09FC020, 09FC030, and 09FC040 are shown. Larger units are
combinations of these piping systems. Combine pressures for
larger systems. Add pressures for series configuration. For par -
allel configurations, combine the pressure drop for each using
the equation Rt=R1*R2/(R1+R2). Rt equals the equivalent
pressure drop which R1 and R2 are the individual circuits.
Curves are for 30% Propylene Glycol (PG). Use multipliers for
other fluids or brine concentration amounts.
Fig. 25 — 09FC 020 Pressure Curve
Fig. 26 — 09FC 030 Pressure Curve
0
5
10
15
20
25
30
35
40
45
50
55
0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750
FC Mode
Bypass Mode
GPM
ft wc.
0
5
10
15
20
25
30
35
40
45
50
55
0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050
FC Mode
Bypass Mode
GPM
ft wc.