Carrier 48SX024-048 - Manual (Page 17)

Table 3 — Maximum Gas Flow Capacity*
NOMINAL
IRON PIPE,
SIZE
(In.)
INTERNAL
DIAMETER
(In.)
LENGTH OF PIPE, FTf
10 20 30 40 50 60 70 80 90 100 125 150 175 200
V2 .622 175 120 97 82 73 66 61 57 53 50 44 40 — —
% .824 360 250 200 170 151 138 125 118 110 103 93 84 77 72
1 1 049 680 465 375 320 285 260 240 220 205 195 175 160 145 135
1V4 1.380 1400 950 770 600 580 530 490 460 430 400 360 325 300 280
IV 2 1.610 2100 1460 1180 990 900 810 750 690 650 620 550 500 460 430
‘Capacity of pipe in cu ft of gas per hr for gas pressure of 0.5 psig or iess. Pressure drop of 0 5-in. wg
(based on a 0.60 specific gravity gas). Ref: Tabie C-4, Nationai Fire Protection Association NFPA54.
fThis iength inciudes an ordinary number of fittings.
SUPPLY DUCT
OPENiNG
RETURN DUCT
OPENiNG
Fig. 16 — Supply and Return Duct Openings
Fig. 18 — Vertical Duct Cover Removed
M.
Fig. 17 - Lance Location for Vertical Duct
Opening Cover
Fig. 19 — Removal of Vertical Discharge
Opening Cover
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