SystemAir K 125 XL sileo User Manual

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Installation, Operation and Maintenance instruction EN

K Circular duct fan AC/EC

KV Circular duct fan for wall AC/EC

Prio Circular duct fan AC/EC

Table of Contents

Questions and Answers:

J
Jeremiah StevensAug 5, 2025
What to do if SystemAir Fan air output is not sufficient?
- R
  Rebecca ColemanAug 6, 2025
  If the air output of your SystemAir Fan is not sufficient, consider these possible causes and solutions: * Ensure the fan impeller turns in the correct direction by verifying the electrical connection. * Check that the electrical connection matches the wiring diagrams. * Adjust the airflow shutters to ensure they are fully open. * Remove any blockage in the air inlet or duct system. * Confirm the product is suitable for the installation location. * For EC motors, check the ambient temperature and ensure sufficient space around the motor for cooling. If the air pressure is too low, make necessary changes to the duct system and installed components to increase it.
Y
yhuntAug 10, 2025
Why SystemAir K 125 XL sileo Fan motor does not rotate?
- J
  jessica64Aug 10, 2025
  If the motor of your SystemAir Fan does not rotate, it could be due to several reasons: * A component in the power supply might be defective; check the power supply, replace any defective components, and reconnect it. * The electrical connection may be incorrect; ensure it agrees with the wiring diagrams. * The motor protection might be released due to overheating; let the motor cool, reset the motor protection, and identify the cause of overheating. * A phase loss might have occurred; if it's a 3-phase motor, ensure no phase is missing.
S
sparksdanielAug 14, 2025
How to fix unusual noise when SystemAir K 125 XL sileo starts or operates?
- J
  Janet DrakeAug 14, 2025
  If there is unusual noise when your SystemAir Fan starts or operates, it might be due to strain in the duct system connections. To resolve this, loosen the connections, correctly align the parts of the duct system, and then tighten the connections.
C
Christina ParkerAug 18, 2025
What to do if SystemAir K 125 XL sileo does not operate smoothly?
- K
  kelly17Aug 18, 2025
  If your SystemAir Fan does not operate smoothly, consider the following: * Ensure the electrical connection is correct so that the fan impeller turns in the correct direction. * Clean the fan impeller carefully if there is dirt on it. * If the fan impeller has deformations because of too high temperatures: * Replace the fan impeller. * Make sure that the temperature of the transported air is not higher than the value on the name plate. * Ensure the product is correctly installed and check the duct system if there are unusually strong vibrations in the product or the duct system. * Increase or decrease the fan speed until the product operates smoothly if it is operated in a resonant frequency range.
J
james08Aug 22, 2025
Why is SystemAir K 125 XL sileo Fan electronic components or the motor overheated?
- L
  Laura StewartAug 22, 2025
  If the electronic components or the motor of your SystemAir Fan is overheated, it could be due to: * Motor overload or high ambient temperature. Let the motor cool, reset the motor protection, and find the cause of the overheating. * Insufficient cooling. Ensure adequate space around the motor for cooling. * The product is not applicable for the installation location.
T
Tara KramerAug 27, 2025
What to do if SystemAir Fan speed does not get the nominal value?
- W
  William DavisAug 27, 2025
  If the fan speed of your SystemAir Fan does not reach the nominal value, consider these possible causes: * Defective motor winding: If possible, measure the resistance to check the motor winding. * Incorrect speed control setting: Set the speed control correctly. * Mechanical blockage: Remove any blockage preventing the fan impeller from turning freely. * Phase loss: If it is a 3-phase motor, ensure that no phase is missing.
M
Margaret MaloneAug 31, 2025
What causes SystemAir K 125 XL sileo thermal contacts, PTC or resistors to be released?
- M
  Michael VaughanAug 31, 2025
  If thermal contacts, PTC, or resistors are released in your SystemAir Fan, it could be due to several reasons: * Ensure the fan impeller turns in the correct direction by verifying the electrical connection. * If the motor is a 3-phase motor, make sure that no phase is missing. * The motor may be overheated. Check the motor cooling impeller, and if possible, measure the resistance to check the motor winding. * The capacitor may not be connected correctly. Connect the capacitor correctly, referring to the included motor wiring diagram. Note: This is not applicable for EC motors or 3–phase AC motors.

SystemAir K 125 XL sileo Specifications

General

Brand	SystemAir
Model	K 125 XL sileo
Category	Fan
Language	English

Summary

Safety

Safety Instructions

Provides general safety warnings and instructions for working with the product.

Personal Protective Equipment

Lists the mandatory personal protective equipment (PPE) for safe operation.

Installation

Pre-Installation Checks

Lists prerequisites and checks before installing the product.

Installing K Fans

Provides instructions for installing K fans, including mounting bracket details.

Installing KV Fans

Details the process for installing KV fans.

Installing Prio Fans

Describes how to install prio fans, including ceiling mounting.

Connecting Ducts

Explains how to connect ductwork to the fan unit.

Electrical Connection

Pre-Connection Checks

Lists essential checks before making electrical connections.

Power Supply Connection

Guides on connecting the product to the main power supply.

EC Motor Speed Controllers

EC Motor Protection

AC Motor Speed Controllers

AC Motor Protection Installation

Commissioning

Pre-Commissioning Steps

Commissioning Procedure

Operation

Starting EC Motors

Starting AC Motors

Stopping the Product

Maintenance

Maintenance Schedule

Product Cleaning

Troubleshooting

Technical Data

Technical Data Overview

Product Dimensions

Wiring Diagrams

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