Constant Heat Regulation Set (Electronically Controlled) With Mixing Circuit Heat Regulator Controlled By Atmospheric Conditions; Return Flow Heat Regulation System; Return Flow Heat Regulation Dn 25 (1"); Return Flow Heat Regulation - Technical Data - meibes 20 Documentation Technique Pour Le Montage Et La Mise En Service

11. Constant heat regulation set
11.2.2

Constant heat regulation set (electronically controlled) with mixing circuit heat regulator controlled by atmospheric conditions

Technische Daten
DN:
Upper connection: 1" F
Lower connection: G 1 1/2" M (flat-sealing)
Axial separation: 125 mm
Components of: Steel, Brass, EPP insulation
Dimensions: Approx. H 500 x B 250 x D 255 mm
Sealing materials: PTFE, asbestos-free fibre sealing, EPDM
Temperature display: from 0 up to 120 °C
Operating tempera-
110 °C; in mixer circuit 60 °C
ture:
Pressure: PN 6
GC-KBN: CPGMEW
12. Return temperature limiter system
12.1 Return flow heat regulation system DN 25 (1") thermostatically controlled
The return flow heat regulation system is mounted beneath the manifold joint. Depending on the return temperature, the flow is mixed to the
return. The result is a shorter heating-up time and it prevents the combustion chamber from condensation. The required return temperature
can be set via the thermostat or the electrical regulator on the 3-way T- mixer. The minimum return temperature dependents on the type of
boiler used.
see Fig. 13
12.1.1 Return temperature limiter system – technical data
Technical data
DN:
Top connection:
Bottom connection:
Pump:
Axial separation:
Components of:
Dimensions:
Sealing materials: PTFE, fiber joint free of astbestos, EPDM
Temperature display:
Operating temperature:
Operating pressure:
Ref. number:
Effiziente Energietechnik
25
25
manifold connection 1 1/2" FI
Boiler connection 1" FI (flat-sealing)
see ref. number
125 mm
Steel, Brass, EPP insulation
ca. H 420 x W 250 x D 255 mm
0° up to 120°C
up to 110°C
PN 6
45841
Note:
For further information, please refer to the technical
information sheets „Servomotor" and „Room Unit".
see Fig. 12.2
see Diagram Fig. D5
Fig. D5 A Volumetric flow - pressure loss
diagram – return flow heat
regulation
B Pressure loss (bar)
C Volumetric flow (l/h)

12.1.2 Example of use

see Fig. 14 A Boiler/Heat source
17