4.3
Version with separate junction box
For products supplied by ZIEHL-ABEGG with a separate junction box, note the following information.
1 Separate junction box made of plastic or metal
2
Lid screws
Tightening torque: Plastic box 1.3 Nm/12 Lb In, metal box
2.6 Nm/23 Lb In
3 Cable glands (see table below)
4
Screw plugs, plastic/brass
Tightening torque: 2.5 Nm/22 Lb In
Cable glands
Thread size
Material
Tightening torques M
A
M12x1.5
Synthetic mate-
rial
1.5 Nm
13 Lb In
Brass
4 Nm
35 Lb In
M16x1.5
Synthetic mate-
rial
2.5 Nm
22 Lb In
Brass
5 Nm
44 Lb In
M20x1.5
Synthetic mate-
rial
4 Nm
35 Lb In
Brass
6.5 Nm
58 Lb In
M25x1.5
Synthetic mate-
rial
6.5 Nm
58 Lb In
Brass
6.5 Nm
58 Lb In
M32x1.5
Synthetic mate-
rial
6.5 Nm
58 Lb In
4.4
Assembly in a humid atmosphere
Information
If the device is not in use for longer periods in a humid atmosphere, it is recommended to operate the
motor/fan for at least two hours every month at 80 - 100 % of maximum speed to remove any moisture
that has penetrated inside.
4.5
Motorheating
A continuous power supply is required for safe operation down to the minimum permitted ambient
temperature (see technical data).
If the motor is not operated with an existing power supply (no setting signal, switch off by enable), the
motor heating switches back on automatically at a controller inside temperature of -19
°
C and back off
when heated up to -15
°
C.
Heating takes place via the motor winding through induction of a current that causes rotation of the
rotor (approx. 5 revolutions per hour). This enables seizing of the rotor to be prevented.
Information
•
Special settings are possible which can lead to deviations from the above functional description.
•
Do not switch off the line voltage to ensure that the motor heating prevents the rotor from freezing.
•
The motor has no sensors to be able to detect the danger of freezing in good time. In order to
completely prevent fans from freezing, on-site measures are required.
Assembly instructions
ECblue BASIC-MODBUS, ECblue BASIC
Mounting
L-BAL-F079D-GB 2044 Index 002
Part.-No.
16/80