Laars OMNITHERM ONH1250, Инструкции по сборке, установке и эксплуатации

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Table 11. Boiler Flow and Head Requirements
Water Flow
Requirements
Flow Headloss* Flow Headloss* Flow Headloss* Flow Headloss* Flow Headloss*
gpm ft gpm ft gpm ft gpm ft gpm ft
1250 106 23.6 85 15.4 71 11.1 61 8.2 53 6.2
1500 126 33.0 101 21.9 84 16.1 72 12.0 63 9.0
1750 147 18.4 118 12.9 98 8.2 84 5.9 74 3.8
2000 167 24.4 133 15.7 111 11.2 95 7.8 83 5.9
2500 207 33.7 166 23.9 138 17.2 119 12.9 104 9.8
*Headloss is for boiler only (no piping)
Temperature Rise
Flow Headloss* Flow Headloss* Flow Headloss* Flow Headloss* Flow Headloss*
l/m (m) l/m (m) l/m (m) l/m (m) l/m (m)
1250 401 7.2 321 4.7 268 3.4 229 2.5 201 1.9
1500 477 10.1 381 6.7 318 4.9 272 3.7 238 2.7
1750 557 5.6 446 3.9 371 2.5 318 1.8 279 1.2
2000 631 7.4 505 4.8 421 3.4 361 2.4 316 1.8
2500 786 10.3 628 7.3 524 5.2 449 3.9 393 3
*Headloss is for boiler only (no piping)
Temperature Rise
40°F 35°F 30°F 25°F 20°F
22°C 19°C 17°C 14°C 11°C
Model
Model
4.B Boiler Water Flow & Headloss Data
See Table 11 for water flow and boiler headloss, based
on heat exchanger temperature rise.
4.C
Water Heater Water Flow and Headloss Data
Water flow and headloss for water heaters is based on the water’s hardness, to help
minimize scale (mineral) buildup inside the heater’s water tubes. Table 12 shows water
flow and headloss based on the hardness of the system’s water. Temperature rise is
shown for information and testing/troubleshooting purposes.
Table 12.
Volume Water Flow Rates
Water Flow
Requirements
1250
85 16.1 25 104 23.6 20
1500 90 17.9 28 110 26.3 23
1750 120 12.9 25 150 19.6 20
2000 135 16.1 25 170 24.4 20
2500 140 17.2 31 170 24.4 25
1250
322 4.9 14 394 7.2 11
1500 341 5.5 16 416 8.0 13
1750 454 3.9 14 568 6.0 11
2000 511 4.9 14 644 7.4 11
2500 530 5.2 17 644 7.4 14
*Headloss is for the heater only (no piping)
Allowable pH is 6.5 to 9.5
Temp Rise
(°F)
Headloss*
(ft)
Flow Rate
(gpm)
1-10 Grains Per Gallon Hardness
Model
11-15 Grains Per Gallon Hardness
Temp Rise
(°C)
Headloss*
(m)
Flow Rate
(l/m)
11-15 Grains Per Gallon Hardness
Flow Rate
(gpm)
Headloss*
(ft)
Temp Rise
(°F)
Model
1-10 Grains Per Gallon Hardness
Temp Rise
(°C)
Headloss*
(m)
Flow Rate
(l/m)
The
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