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Replacing an existing ELFAMATIC µC 2100
The device must be connected as shown in the circuit diagram.
Removal
To remove the controller, release the top part from the base (as
described above) and disconnect the connecting cables.
Then release the base from the rail as shown in the illustration
below.
Sensor
Normally, the installation location of the atmospheric sensor should be selected according to the
following criteria:
Installation according to the illustration below
●
Min. height above ground: 2.5 m
●
The sensor should be mounted on the side of the building on which the main rooms to be heated
●
are located (avoid mounting on the north side of the building where possible)
The sensor must be mounted at a sufficient distance from doors, windows, exhaust-air ducts, etc.
●
The cable between the sensor and control unit must be suitable for mains voltage.
2.3.2 Electrical connection
The terminal assignment is given in the table below.
Preliminary check
Insulation test on all cables (without consumers)
●
Resistance test (turn the rotary knob of charging controller on each heater clockwise as far as it
●
will go)
1.
At Z1 and Z2 of the ELFAMATIC µC 3000:
R= 176 Ω ... 100 kΩ
The measured resistance must not be less than 176 Ω.
2.
At W1 and W2 of the ELFAMATIC µC 3000:
Atmospheric sensor
R = See table in page 24
Make sure that the correct sensor code is entered.
Switch on the mains voltage and measure between L and N.
●
Simulate the LF release and measure the voltage between LF and N.
●
Switch off the mains voltage.
●
Attach the top part of the housing to the base.
Sensor
Brickwork
installation
Normal brickwork or brickwork with inner
insulation: Sensor body fitted flush with plaster
surface or projecting max. 10 mm above plaster
surface.
All manuals and user guides at all-guides.com
Heat
insulation
Atmospheric sensor
∅11,5 mm
(drill hole ∅12 mm)
max. 10 mm
Plaster
Spare fuse
Concrete
Heat insulation
Non-bearing and rear-ventilated facade:
Half of sensor body fitted in air duct.
For the Fitter
Atmospheric sensor
∅11,5 mm
(drill hole ∅12 mm)
Concrete, Eternit, etc.
Air
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