Construction And Function; Functional Description - oventrop Regudis W-HTF Mode D'emploi

5 Construction and function

5.1 Summary
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18
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Illustr. 5.1 Construction with constant temperature
circuit and circulation pipe
Consisting of:
1 Plate heat exchanger
2 Proportional flow controller
3 Thermostatic temperature controller
4 Differential pressure regulator
5 Zone valve for heating circuit control
6 Zone valve for the fixing of an actuator
7 Spacer for heat meter
8 Spacer for cold water meter
9 Connection facility for temperature sensor for
heat meter M10x1
10 Strainer (with draining facility) heating circuit
return
11 Strainer (with draining facility) heating water
supply
12 Deaeration potable water circuit
17 Circulation pump
18 Actuator for circulation
pipe control
19 Stainless steel pipe circulation pipe
20 Double nipple
21 Cable connection group
22 Circulation pipe heating side
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Circulation
pipe

5.2 Functional description

The Oventrop dwelling station "Regudis W-HTF"
supplies heat as well as hot and cold potable water
to individual dwellings without using auxiliary heating.
The hot water for heating purposes is provided by a
central heat supply. The potable water is heated locally
via a heat exchanger according to the continuous
flow principle. The control range is adjustable between
40-70 °C.
Heating operation:
Heating water enters the heating circuit of the dwelling
(F) via the supply of the heating system (D). The pro-
portional flow controller (2) opens the path between
the return of the heating circuit (G) and the supply re-
turn (E).
Heating of potable water:
The proportional flow controller (2) switches to potable
water priority function, if hot water is demanded in
the dwelling. The heating water of the supply (D)
passes across the plate heat exchanger (1) and the
proportional flow controller (2) and enters the supply
return (E). The cold potable water (C) is warmed
up according to the continuous flow principle and is
available at the hot water supply of the dwelling (A).
Circulation operation:
During circulation operation, potable water enters the
heat exchanger via connection J.
During pump operation, the actuator (18) opens the
path via the pressure relief device of the proportional
flow controller. As a result, hot heating water may
pass across the heat exchanger on the inverse flow
principle and heat up the potable water. As long as
the circulation pump (17) is running, the valve at the
actuator (18) is opened.
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