Bosch Appliances GWH 425 PN/HN4GWH 4254, GWH 260 PN/HN2 manual HotCold

Models: GWH 425 PN/HN4GWH 4254 GWH 260 PN/HN2

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Applications manual

23

 

 

3.2.2Powerstream Pro whole house application with domestic recirculation loop

The circulator should be controlled by an external aquastat, or with a timer to run only during times of expected hot water usage.

Powerstream Pro

RP17PT or RP27PT

Ariston Pro GL4Ti (for pipe runs over 100ft use GL8Ti)

HotCold

Symbols

Bronze circulator pump sized

Flow check valve

according to UPC standards

 

(Taco Bronze 007 or Grundfos 15-42B

 

will cover most homes up to 3 bathrooms)

 

Potable water

Service

expansion tank

valves

 

Timer or

 

Flow direction

Aquastat

 

 

 

Sink

Standard tub fixture

Note: Cold water piping to fixtures not shown for clarity purposes.

Note: This drawing is conceptual in nature and does to 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 # WH1R

CN rev 06/07

Bosch Water Heating

Applications manual 11.2007

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Image 23
Bosch Appliances GWH 425 PN/HN4GWH 4254, GWH 260 PN/HN2 manual HotCold