Replacing The Thermometer; Gravity Brake; Instructions For The Proper And Functional Operation Of The Heating System - meibes 20 Documentation Technique Pour Le Montage Et La Mise En Service

6. Actuator
Technical Data
Electrical connection: ~50 Hz/230 V
Power consumption: 2,5 W
Torque: 6 Nm
Run time: 140 s/90°
Connection cable: 3 x 0,5 mm
see Fig. 5
Wiring diagram see Fig. 5.1
Manual emergency operation
�
Manual operation Change-over by rotary knob on housing
see Fig. 5.2 A Manual operation B Automatic operation
Note: Please observe the Operating Instructions of the actuator.

7. Replacing the thermometer

The thermometer is pushed into a pocket and can easily be pulled out for replacement.
Ensure that the thermometer is replaced by a similar thermometer with the same colour coding.
(Red dial = flow; Blue dial = Return)
see Fig. 6

8. Gravity brake

The gravity brake and/or check valves used in our systems are specifically marked. They are integrated into the ball valve. The handle is
labelled with „SB". The gravity brake can be de-activated by turning the handle approx. 45° to the stop position - "Anschlagstellung".
see Fig. 7. and 7.2
9. Instructions for the proper and functional operation of the
heating system
Note!
After filling and following pressure and leak test of the vessel or the accumulator, the connection to the subsequent piping system may only be
established by the actuation (opening) of the ball valve in the return circuit because the overpressure (test pressure) in the vessel/acculumator
can cause a pressure surge. If the ball valve in the forward flow is opened first, this pressure surge could damage the gravity brake in the
return circuit.
see Fig. 8
Effiziente Energietechnik
Item-No:
Protection rating:
Protection class:
Ambient temperature:
Weight:
2
A brown B blue
66341
II
IP40
-10 to +50° C
0,4 kg
C white
13