Flow Rate & Pressure Drops: Models Ext 1500 2S, 2300 2S, 2600 2S & 3000 2S - Watts AERCO Modulex EXT Series Technical Application Manual

Modulex EXT Series Piping
BOILER LOOP DESIGN GUIDELINES
TABLE 1.4: Light Commercial: 20 F
20°F ΔT Water Flow
Water Flow (GPM) @ Min. ΔT of 20°F
Water Pressure Drop (Ft. of Hd.) across Boiler @ 20°F
ΔT Flow
Strainer ∆P (Ft. of Hd.) – ('Y' Strainer, 20 mesh)
ΔP (Ft. of Hd.) – (20' SCH.40, 4 x 90°, 2 x reducing
couplings, 2 x Ball Valve). NOTE: Reducing coupling not
applied to MLX-909 and MLX-1060 because boiler line
size is already 2-1/2"
Total Primary Loop ∆P (Ft. of Hd.) @ ∆T of 20F
Strainer, Pipes, Valves and Fittings Sizes used to
estimate ∆P for above piping configurations
Recommended AERCO Pump + Circuit Setter Kit for
piping configurations not exceeding the above example
Kit includes: Pump Flange Size
Kit includes: Circuit Setter Size (NPT)
3.2. Flow Rate & Pressure Drops: Models EXT 1500 2S, 2300 2S, 2600 2S & 3000 2S
TABLE 2.1: Commercial: 50 F
50°F ΔT Water Flow
Water Flow (GPM) @ Max. ΔT of 50°F
Water Pressure Drop (Ft. of Hd.) across Boiler @ 50°F
ΔT Flow
Strainer ∆P (Ft. of Hd.) – ('Y' Strainer, 20 mesh)
ΔP (Ft. of Hd.) – (20' SCH.40, 4 x 90°, 2 x reducing
couplings, 2 x Ball Valve)
Total Primary Loop ∆P (Ft. of Hd.) @ ∆T of 50F
Strainer, Pipes, Valves and Fittings Sizes used to
estimate ∆P for above piping configurations
Recommended AERCO Pump + Circuit Setter Kit for
piping configurations not exceeding the above example
Kit includes: Pump Flange Size
Kit includes: Circuit Setter Size (NPT)
Page 12 of 37
10.07.2010
Application Guide
∆
T Water Flow
EXT 450 2S
42
11.8
0.92
1.49
14.19
2"
99127-3
2"
2"
∆
T Water Flow
EXT 1500 2S
56
2.6
0.29
0.41
3.32
3"
99127-6
2"
2-1/2"
AERCO International, Inc. • 100 Oritani Dr.
Phone: 800-526-0288
EXT 600 2S EXT 800 2S
56 71
9.2 9.7
0.80 1.26
0.91 1.49
10.91 12.41
2-1/2" 2-1/2"
99127-4 99127-4
2" 2"
2-1/2" 2-1/2"
EXT 2300 2S EXT 2600 2S
84 99
3.3 3.6
0.64 0.29
0.91 0.33
4.83 4.22
3" 4"
99127-7 99127-7
3" 3"
3" 3"
Blauvelt, NY 10913
EXT 1100 2S
99
9.5
2.46
2.71
14.71
2-1/2"
99127-5
1-1/2"
2-1/2"
EXT 3000 2S
113
3.0
0.37
0.433
3.75
4"
99127-7
3"
3"
TAG-0099