Vitodens 200-W, B2HA 19 to 80 Technical Data
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5683 717 - 03
DHW Recirculation
Domestic Hot Water Recirculation
DHW recirculation lines increase the level of comfort and
convenience of the domestic hot water supply and reduce
water consumption.
These advantages directly derive from the immediate
availability of domestic hot water at all draw points.
Poor insulation of the DHW recirculation line, however,
can result in considerable heat loss. Viessmann therefore
recommends that effective insulation be provided and
used for DHW recirculation lines of 23 ft. (7 m) in length
or longer.
Vitocell-V stand-alone DHW storage tank
Legend
DCW
Domestic Cold Water
DHW
Domestic Hot Water
TPV
Temperature and Pressure Relief Valve
(on tank - not shown)
R
DHW Recirculation Line
RP
DHW Recirculation Pump
