Calculating Equivalent Feet - Kenmore 153.331350 Use & Care Manual

Calculatin 9 Equivalent Feet
50ft. (15.2m) + 7ft. (2.1m) +
40 & 50 gal. 50,000 2" (50mm) - 0.37 in. w.c
termination elbow termination elbow
125 ft. (38.1m) + 7 ft. (2.1m) +
40 & 50 gal. 50,000 3" (76mm) - 0.37 in. w.c.
termination elbow termination elbow
180 ft. (54.9m) +
40 & 50 gal. 50,000 4" (102mm) - 0.37 in. w.c.
termination elbow
125 ft. (38.1m) +
termination elbow
Equivalent lengths of straight pipe for various elbows using Schedule 40 PVC, CPVC and
polypropylene.
.otes:
..................................................................................................... 1. Use long radius elbows where
2" (50ram)
3" (76ram)
4" (102mm)
2" (50ram)
3" (76ram)
4" (102mm)
90 ° elbow
45 ° elbow
8 ft. (2.44m)
4 ft. (1.22m)
5 ft. (1.52m)
2.5 ft. (0.76m)
,
3.
possible. Minimum distance
between 90 ° elbows should be 6"
(150ram) wherever possible.
Venting systems may use a
maximum of five (5) 90 ° elbows.
Use proper screen termination
(see Figure 22).
Table 1
COVER PLATE Note: The vent pipe must be supported every 4 ft. (1 .TM). To prevent vibration and sagging, it is recommended to use isolation pads
_DT r,M^_ _ when attach ng straps to f oor jo sts wa s or ce ngs PVC and CPVC vent p pe shoD d be s oped upwards away from the b ower
......... J \ _/ _.v.;l/'' assembly at a pitch of 1/8 in. (3mm i rise per 4 ft. (1.2M). Poiypropylene vent systems require a 1/4" (emm) per I ft. (0.3M) upward
TERMINATION \ ": °Lislope to ensure proper drainage.
ELBOW XX '[_ U U _ U U i _45°SHORIFI
RODENT ," _: ELBOW
SCREEN
(INSTALL INTO "" ,/ / I ]
ELBOW) "'...Jk_[
:.4'u -, D :,
12" (3O5mm)M IN. OR ..:|
_ / _,l X _,[_'JC__ B I
ABOVE ANTICIPATED i ] Example for calculating equivalent feet STRAP _- --C _
BNOWLEVEL. ' '1us'ngT'venting *,/
':'tBeetion"A" 05,t 015m 7
.,",1 90° elbow 80 ft (2 44m) / _ _ I /
."1 SectienB 10ft (031m) 90°SHORT _ ,._..I__ L__ A
__-_ .";I 45° elbow 4.0 ft. (1.22m) ELBOW J
/ ' ' I Section C 1.5 ft. (0.46m) _ _--
/ "'._ 45 ° elbow 4.0 ft. (1.22m)
/ "':1 Section D 15.0 ft. (4.57m) (_1_
/ ". J Total Equivalent 34.0 ft. (10.37m)
GROUND LEVEL "; | ._
':_"1 Based on this example use the (fully open) rodent
.,".1 screen for vent length greater than 20 equivalent ft
'_1 (6.1 equivalent metres) (see Figures 22).
Figure 24
3O