External Storage Tank Loading Applications - Bosch GWH 715 ES Applications Manual

Applications manual

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 fl ows and high volume demands of large home
and commercial applications.
4.3.1 GWH 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
30 feet of head
20 feet of head
10 feet of head
0 feet of head
0 GPM
30 feet of head
20 feet of head
10 feet of head
0 feet of head
0 GPM
BOSCH THERMOTECHNOLOGY CORPORATION
GWH 345 ESR
1 GPM 2 GPM 3 GPM
water flow rate
GWH 450 ESR
1 GPM 2 GPM 3 GPM
water flow rate
Pressure drop curves
Note : Flow above 6 GPM is not permitted.
4 GPM 5 GPM 6 GPM
4 GPM 5 GPM 6 GPM
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Applications manual | 11.2007