Bosch GWH 715 ES Applications Manual page 18

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7.2.3 Powerstream 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.
Insulate piping in hot water recirculation loop to limit heat loss.
Ariston Pro mini-tank
(2.5, 4 and 8 gallon
sizes)
Bronze or stainless steel
circulator pump sized
according to UPC standards
(Taco Bronze 007 or Grundfos 15-42B
will cover most homes up to 3 bathrooms)
Note:
Drawing is not to scale.
Cold water piping to fixtures not shown for clarity purposes.
Bosch applications manual | 06.2009
Symbols
Service
Potable water
valve
expansion tank
See Chapter 5.1 for recirculation pump parameters
Flow check valve
Timer
Sink
Aquastat
Bosch applications manual
Powerstream Pro
RP17PT or RP27PT
Hot Cold
Flow direction
Standard
tub fixture
BOSCH THERMOTECHNOLOGY CORPORATION