Mega-Stor Indirect Fired Water Heater Installation Manual

9
Fitting Description
Quantity
(a)
Flow
Total
(d)
8.0 GPM
(b)
12.7 GPM
(c)
MS-26 Coil, MSH-40 Coil 2.5 ---
MS-40 Coil 3.0 ---
3.0
MS-53, MSH-53H Coil 3.5 ---
MS-79 Coil 4.8 ---
MS-119 Coil --- 7.9
1 ft 1” St. Pipe
10 ft 0.05 0.13 0.50
1 ft 1-1/4” St. Pipe
6 ft 0.06 0.03 0.36
1 ft 1-1/2” St. Pipe
ft 0.01 0.01
1” 90 El
6 0.16 0.40 0.96
1-1/4” El
3 0.06 0.15 0.18
1-1/2” El
0.04 0.10
1” Run of Tee
0.05 0.13
1-1/4” Run of Tee
1 0.02 0.05 0.02
1-1/2” Run of Tee
0.01 0.03
1” Branch of Tee
0.26 0.66
1-1/4” Branch of Tee
2 0.08 0.20 0.16
1-1/2” Branch of Tee
0.05 0.13
1” Std. Ball Valve
0.12 0.30
1-1/4” Std. Ball Valve
0.06 0.15
1-1/2” Std. Ball Valve
0.02 0.05
Taco
“Flo-Chek”
#220 (1”)
1 2.18 5.49 2.18
#221 (1-1/4”)
0.84 2.12
#222 (1-1/2”)
0.44 1.11
Taco Air
Scoop
#431 (1”)
0.15 0.38
#432 (1-1/4”)
1 0.05 0.25 0.05
Honeywell Zone Valves
V8043F1101 (1” Cv=8) 2.31 4.69
Allowance for bushings and
sudden transitions*
1 0.53 1.34
0.53
Boiler**
0
Total Head Loss Through Manifold Piping and Mega-Stor Zoning
7.94
FIGURE 4.2: COMPLETED WORKSHEET 3
PRESSURE DROP CALCULATIONS THROUGH MEGA-STOR ZONE
HEAD LOSS (FT W.C.)
*Includes (2) 1-1/2 x 3/4 and (2) 1-1/2 x 1 transitions
**Pressure drop through boiler can be ignored for most cast iron or steel boilers. If in doubt, consult the boiler
manufacturer.
Above pressure drops may be used for black pipe or copper tubing.