1270047_1
12
EN | Installation
AC-motor
• For speed regulation of AC motor a transformer or thyristor can be connected.
• The AC motor has a built-in thermal contact.
EC-motor
• Speed regulating of EC motor can be done with the built-in potentiometer, 0-10 V.
An external potentiometer can be connected to the terminal if necessary.
The internal potentiometer should then be disconnected.
• Some EC motors has tachometer output one pulse per revolution.
• EMC-compatible installation of EXTERNAL control lines: The control cable must
not be longer than 30 m. Screened control cables must be used when the cable
length is longer than 20 m. When using a shielded cable connect the shielding
to one side only, i.e. only to the device with the protective ground (keep cable
short and with as little inductance as possible!). Pay attention to sufficient
distance from power lines and motor wires to prevent interferences.
Attention! Ensure correct polarity! Never apply line voltage to analog inputs!
• The EC motor has electronically thermal-/overvoltage protection.
No other preparations are required.
Tools
• Screwdriver
Material
• Fastener that is suitable for the construction and condition of the wall
• Pipe clip or flange with surrounding insulation
5.1 Mounting principles
1 RS wall fan
2 Exterior wall
3 Silencer
4 Exhaust diffusers
1
2
3
4
1270047_utg1_RS_sveng.indd 12 2020-12-21 16:03:24
EN_SE_Manual_RS_1270047u1.pdf 12EN_SE_Manual_RS_1270047u1.pdf 12 2020-12-21 16:11:082020-12-21 16:11:08
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