Bosch Appliances GWH 425 PN/HN4GWH 4254 Water Heater User Manual


 
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Applications manual
Application manual | 11.2007
Bosch Water Heating
5.2 Indirect Tank Applications
5.2.1 Indirect Baseboard/ Radiant Panel space heating and DHW plumbing diagram
Note: Not suitable for space heating applications requiring high water temperature.
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 # IDBBOL
CN revA 10/07
Service
valves
Bronze circulator
sized according to
UPC standards
Potable water
expansion tank
Flow
direction
Note: Piping to fixtures not shown for clarity purposes.
Pressure
relief
valve
Indirect
hot water
tank
P1
Air
seperator
Tank
Aquastat
Flow
check
valve
Baseboard/
Radiant
Panel
Bosch GWH 345 ESR,
Bosch GWH 450 ESR
Cold water
feed
DHW
PK
Cold
feed
Thermostatic
Mixing
valve
Back Flow
preventer
Pressure
reducing
valve