Domestic Hot Water Recirculation - Viessmann VITODENS 200-W Technical Data Manual

Vitodens 200-W, B2HB 19 to 35 Technical Data

Domestic Hot Water Recirculation

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
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.
DHW Recirculation
11