PEWO LINE OF PRODUCTS District heating substations pewoCAD · Heating and cooling manifolds pewoSplit · House substations pewoCompact and pewoV-max· Consumer units pewo Therm · Domestic hot water systems pewoAqua Supply registers pewoVario · Control and communications technology pewoControl · Monitoring technology pewoLive DOMESTIC HOT WATER HEATING PEWO SYSTEMS FOR EVERY APPLICATION – HYGIENE AND SAFETY 3
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3 DOMESTIC HOT WATER HEATING - Simply Biomass...ura heating water 95 ¡C (110 ¡C on request), nominal pressure heating water PN 10 (PN 16 on request), domestic hot water PN 10 Apartments
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PEWO LINE OF PRODUCTS District heating substations pewoCAD · Heating and cooling manifolds pewoSplit · House substations pewoCompact and pewoV-max· Consumer units pewoTherm · Domestic hot water systems pewoAqua Supply registers pewoVario · Control and communications technology pewoControl · Monitoring technology pewoLive
DOMESTIC HOT WATER HEATINGPEWO SYSTEMS FOR EVERY APPLICATION – HYGIENE AND SAFETY
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In a decentralised system, the Domestic hot water
heating takes place near the tapping point(s). The cen-
trally generated thermal energy is distributed in the
building as heating circuit water by a pipeline network
consisting of flow and return. Cold tap water is heated
up to the desired temperature by a plate heat exchang-
er in the hydraulic interface unit using the flow-through
principle. The consumption can easily and precisely be
measured by integrated heat and water meters.
In contrast, centralised Domestic hot water heating
has additional pipework for Domestic hot water and
circulation. The heating takes place in a central facility
using the flow-through or tank charging principle.
The advantage of both systems is a very high Domes-
tic hot water convenience. Due to the centralised heat
generation, both concepts are directed at the future.
Maximum availability and high flexibility can be en-
sured by cascaded heat generators.
>> For those striving to combine the sanitary benefits
of a flow-through system with the advantages of stor-
aging, PEWO offers a solution with the tank-charging
pewoAqua L product line. Numerous combinations of
charging powers and tank sizes
are available. Times of elevated
Domestic hot water demand
(consumption peaks) are cov-
ered by the storage tank. An
anti-legionella set-up prevents
sanitary hazards.
A short overview centralised or decentralised? DECENTRALISED
1) No. of flats: Simultaneousness according to the Dresden technical university, aver-age tap performance per apartment 14 l/min resp. 30 kW with 45°C
2) maximum tap performance:According to DVGW (German as-sociation for gas and water) work sheet W551 reference to DIN 4708, the hot water outlet temperature can fall below 60°C at periods of peak demand. It should be pointed out that according to DVGW work sheet W551 large scale plants at all times (excluding periods of peak demand according to DIN 4708) must provide a hot water outlet temperature of 60°C as well as a circulation pump return tempera-ture of 55°C for 16 of 24 hours.
CHARACTERISTICS Product pewoAqua DP, Heating water flow 65–70 °C, Heating water return 18–28 °C, max. temperat-ura heating water 95 °C (110 °C on request), nominal pressure heating water PN 10 (PN 16 on request), domestic hot water PN 10
Reprinting or reproduction even of ex-cerpts is only permitted with the approval of PEWO Energietechnik GmbH, 02979 Elsterheide, Germany. Errors and techni-cal modifications are reserved. Any per-
formance diagrams, statements and tables only serve to provide better understanding. They do not make authorita-tive statements concerning our complete or current product programme and therefore provide no basis for planning.