Applications manual | 29 |
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4.3 External storage tank loading applications.
Introduction
This section lays out tank loading options for high volume water heating for large residential and light commercial applications including continuous flows and high volume demands of large home and commercial applications.
4.3.1GWH 345/450 ESR pressure drops and circulator guidelines The maximum amp draw for any circulator connected directly to the appliance must not exceed 1.5 amps
Circulator should be sized by the professional plumbing contractor
Bronze or stainless steel circulators required for all open loop applications
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| 40 | feet of head |
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pressure | 30 | feet of head |
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| GWH 345 ESR |
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20 | feet of head |
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10 | feet of head |
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Inlet |
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0 | feet of head |
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| 0 GPM | 1 GPM | 2 GPM | 3 GPM | 4 GPM | 5 GPM | 6 GPM |
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| water flow rate |
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| 50 | feet of head |
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| 40 | feet of head |
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pressure | 30 | feet of head |
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| GWH 450 ESR |
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20 | feet of head |
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Inlet | 10 | feet of head |
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| 0 | feet of head |
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| 0 GPM | 1 GPM | 2 GPM | 3 GPM | 4 GPM | 5 GPM | 6 GPM |
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| water flow rate |
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Pressure drop curves
Note : Flow above 6 GPM is not permitted.
Bosch Water Heating | Applications manual 11.2007 |
