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Applications manual
Application manual | 11.2007
Bosch Water Heating
4.3.2 Single unit tank loading application plumbing diagram
The GWH 345/450 ESR is specifi cally designed for this application.
Symbols
Note: This drawing is conceptual in nature and does not address all design, installation or safety considerations.
Additional safety and/or auxiliary equipment may be needed. This diagram is for reference use by officials, designers and licensed installers.
It is expected that installers have adequate knowledge of accepted industry practices for the equipment, procedures, and applications involved.
Drawing is not to scale.
Drawing # STL
CN revA 10/07
Service
valves
Bronze circulator sized
according to UPC standards
Potable water
expansion tank
Bosch GWH 345 ESR,
Bosch GWH 450 ESR
Flow
direction
Note: Piping to fixtures not shown for clarity purposes.
Cold water
feed
DHW
Pressure
relief
valve
External
storage
tank
12K ohm
thermistor
with immersion
well
PS