Bosch Thermotechnik EMS 2 Manual De Instalación página 27

Description of the freshwater functions
The required system is put together by adding functions to the
freshwater system.
Circulation (A)
Return valve (B)
Freshwater station preheat (C)
Therm.dis./daily heat-up (D)
Cascade (E)
Table 5
MS 100
DHW circulation ( Fig. 20, page 202)
• Operation of a DHW circulation pump connected to the module can be
time and pulse-controlled.
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Temperature-dependent infeed ( Fig. 20, page 202)
• If a cylinder with temperature-dependent infeed is used, the return
can be supplied on two levels via a 3-way valve.
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Preheating of the DHW with the freshwater station ( Fig. 21, page 203)
• With the preheating freshwater station the water is preheated
according to the instantaneous water heating principle when water is
drawn off. The DHW is then directly heated by a heat source in a DHW
cylinder until it reaches the set temperature.
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Thermal disinfection to prevent legionella ( Drinking Water Ordinance
[Germany]) ( Fig. 21, page 203)
• The entire volume of hot water and the preheating freshwater station
are heated up on a daily basis to the temperature that has been set for
daily heat-up.
This function is only available if function C has been added.
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Cascading of freshwater stations for higher draw-off points ( Fig. 22
and 23, from page 204).
• Additional freshwater stations are switched in for higher draw-off
volumes.
• This function is switched in if several freshwater stations have been
connected.
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Product details | 27
6 720 815 256 (2014/10)