systemair IV, IV EC Induction Fans Installation Guide

Keep the operating instructions and other valid documents, such as the circuit diagram or motor instructions, with the fan. They must always be available at the place of use.
Observe and respect local conditions, regulations, ns, and laws.

Abide by the system-related conditions and requirements of the system manufacturer or plant constructor.
Safety elements may not be dismantled, circumvented, or deactivated.

Only use the fan in flawless condition.
Provide generally prescribed electrical and mechanical protective devices.

During installation, electrical connection, commissioning, troubleshooting, and maintenance, secure the location and premises against unauthorized access.
Do not circumvent any safety components or put them out of action.

Before any work on the fan, test the absence of voltage. Even when the motor is stopped, dangerous voltages may be present on terminals.
Keep all the warning signs on the fan complete and in a legible condition.

The device is not to be used by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge unless they have been given supervision or instruction.
When lifting the device, use suitable lifting gear.

Do not allow children to play with the device.

Personnel
The fan may only be used by qualified, instructed, and trained personnel. The persons must know the relevant safety directives to recognize and avoid risks. The individual activities and qualifications.

Qualifications

Note:
The operator is responsible for ensuring that personnel are instructed and have understood the contents of the operating instructions. If something is unclear, please contact Systemair or its representative.

Personal protective equipment
Wear protective equipment during all work in the vicinity of the fan.

protective working clothes

protective working shoes
protective working gloves

helmet
goggles

hearing protection

5 rules of electrical safety

Disconnect (disconnection of the electrical system from live components at all terminals)
Prevent reactivation
Test absence of voltage
Ground and short-circuit
Cover or restrict adjacent live parts

Warranty
For the assertion of warranty claims, the products must be correctly connected and operated and used in inbyhe data sheets. Further prerequisites are a completed maintenance plan with no gaps and a commissioning report. Systemair will require these in the case of a warranty claim. The commissioning report is a component of this document. The maintenance plan must be created by the operator, see section Maintenance.

Delivery, transport, storage

Safety information
Warning: Risk from rotating fan blades

Prevent access by unauthorized persons by safety personnel or access protection.

Warning: Suspended loads

Do not walk under suspended loads.
Make sure that there is nobody under a suspended load.

Delivery
Each fan leaves our plant in an electrically and mechanically proper condition. We recommend transporting the fan to the installation site in the original packaging.

Checking delivery

Check the packaging and the fan for transport damage. Any findings should be noted on the cargo manifest.

Check the completeness of the delivery

Unpacking
When opening the transport packaging, there is a risk of damage from sharp edges, nails, staples, splinters, etc.

Unpack the fan carefully.

Check the fan for obvious transport damage.
Only remove the packaging shortly before assembly.

Transport
Safety information
Warning: Electrical or mechanical hazards due to fire, moisture, short circuit,t or malfunction.

Never transport the fan by the connecting wire, terminal box, impeller, protection grille, inlet cone, or silencer.
In open transport, please make sure that no water can penetrate the motor or other sensitive parts.
We recommend transporting the fan to the installation site in the original packaging.
Caution: If transported without care during loading and unloading, the fan may be damaged.

Load and unload the fan carefully.
Use hoisting equipment that is suitable for the weight to be hoisted.
Observe the transportation arrows on the packaging.

Use the fan packaging exclusively as transport protection and not as a lifting aid.

Storage

Store the fan in the original packaging in a dry, dust-free location protected against weather.

Avoid the effects of extreme heat or cold.

Hazard due to loss of function of the motor bearing

Avoid storing for too long (recommendation: max. 1 year).

Check that the motor bearing functions properly before installation.

Description
The induction fan is equipped with a radial fan with a revision switch (optional).

Intended use

IV jet fans are intended for installation in underground and above-ground parking structures, to facilitate ventilation and smoke extraction (K), (B), (F).
For optimum operation, the jet fan must be suspended horizontally from the ceiling in such a position that the intake and outlet are unobstructed.

Incorrect use
Incorrect use refers mainly to using the fan in another way than that described. The following examples are incorrect and hazardous:

The temperature of the air transported through the fan must not exceed the temperature range stated on the nameplate.
The fan is not suitable for intake of aggressive media or media with a dust content so high that dust deposits on the impeller or fan housing can affect the operation of the fan.
The fan must not be installed in hazardous areas (areas with a potentially explosive atmosphere).

The motors cannot be voltage-controlled

Temperature types

Dimensions

Nameplate and type key

General data

Technical data
Temp./Time information/ only listed on smoke extraction fans
Certifications and QR— Codes

Manufacturer Address

Type key

Installation

Safety information

Observe 2 Important safety information, page 1
Check the surface before installation for load-bearing capacity.
Consider all static and dynamic loads when selecting hoisting equipment and fastening components.

Provide contact and intake protection and ensure safety distances according to DIN EN ISO13857 and DIN 24167-1.
Use installation material with fire resistance classes that meet temperature requirements.

Preconditions

Ensure that the fan and all its components are undamaged.
Fit the fans in such a way that there is sufficient access for installation, troubleshooting, maintenance, and repair.
Protect against dust and moisture when installing.

Ensure that the information on the thenameplatess (fan and motor) matches up with the operating conditions.
A warning sign must be attached close to the air outlet, stating that the air outlet must not be covered.
Fit the fans in such a way that there is sufficient access for troubleshooting, maintenance, and repair.

Installation positions
Always install in a horizontal position.

Deflector
Position the deflector fins so that after fastening the jet fan to the ceiling, theairfloww is directed downwards at a 10° angle. It may be possible to readjust the fans afterward depending on the structures located in the immediate vicinity, such as girders.

Vibration dampers

Important
Risk of damage to the fan due to incorrect vibration dampers

Use the vibration dampers suitable for the respective weight.
Use the vibration dampers with fire resistance classes that match the respective application.

Electrical connection

Safety information

Observe 2 Important safety information.
Prevent the ingress of water into the connection box.

Connection

Check if the data on the nameplate matches the connection data.
Complete the electrical connection according to the circuit diagram.

Fans with EC- m-motorsmust be switched on/off via the control input.
Connect the cable end in a dry environment.
Install a circuit breaker in the permanent electrical installation, with a contact opening of at least 3 mm at each pole.

Protective grounding wire
The protective grounding must have a cross-section equal to or greater than that of the phase conductor.

Residual current circuit breaker
All-current-sensitive residual current circuit breakers are required for use in alternating-current systems with 50/60 Hz, in combination with electronic devices such as EC motors, frequency converters, or uninterruptible power supplies (UPS).

Protecting the motor

Important
Damage to the motor due to overcurrent, overload,d, or short circuit.

Lead-out temperature monitors must be integrated into the control circuit in such a way that, if a fault occurs, the motor cannot switch on again automatically after it has cooled down.
Motor lines and temperature monitor lines should be laid separately on principle.

Without thermal protection: Use a motor protection switch!

Note:
In fans equipped with an EC motor, there is no additional motor protection needed. The motor protection is integrated into the electronics of the motor.

Motor protection

Wiring diagram

Important
The wrong connection can damage or destroy the motor.

Use the information on the nameplate to select the correct connection diagram.

Terminal box

Note:

Only one of the following control possibilities (A, B, C, D) can be used at the same time.
The potentiometer must be disconnected if the fan should be controlled by other accessories.
The fan will stop if imposed signals are lower than 2 V DC, 4 mA, or 10 %.

Control output reference (tacho)

Important
The applied voltage and the value of the pull-up resistor must be selecteds that the current does not exceed 20 mA.

Frequency = speed (rpm) * 0,6015
Example:669 Hz / 0,6015 = 1112,21 rpm -> 36 impulse / revolution

Variable-speed fans (Frequency converter / EC motor)

Risk from resonant frequencies.

Only operate the fan outside these speed ranges.
Pass through these speed ranges so quickly that any vibration cannot exceed the admissible resonant frequency values.
For variable-speed fans, use permanent vibration monitoring for long-term safe operation.

Operation of the frequency converter

The heating of the motor due to the use of a variable frequency drive must be checked in the application by the customer.
Avoid running the fan via the frequency converter below 10 Hz.

Starting time: min. 60 sec.

Commissioning of the frequency converter

Observe the operating instructions of the frequency converter.

Install the fan and frequency converter as near as possible to one another.
Use shielded cables.
All components (fan, frequency converter, and motor) must be grounded.

We recommend using all-pole sinus filters.
Never exceed the maximum impeller rotation speed indicated on the nameplate of the fan.

Commissioning

Warranty claims can only be made if commissioning work is carried out correctly and written evidence thereof is provided.

Preconditions

Installation and electrical connection have been correctly performed.
Before switching the fan on, check for externally visible damage and ensure that the protective equipment functions properly.

The inlet and outlet are free.
Cable glands are tight.
Safety devices have been fitted.

Commissioning of speed-controlled fans
Check the fan for vibrations at all normal operation speeds during commissioning. Determine and evaluate vibrations on the housing and bearing areas by DIN ISO 14694 depending on motor power and positioning.

Measurable vibration velocities depend e.g. on the following factors:

positioning
bottom section/foundation state
flow conditions

The working point of the fan, as well as used external devices and accessories, also influence the running characteristics.

Tests
Do the tests requested in the commissioning report?

Troubleshooting/maintenance/repair

Troubleshooting

The motors of the IV…EC has aanLED in the opening on the back side that indicates the solution status to help in the fault diagnostics:Note:
For all other damage/defects, please contact Systemair. Defective safety-relevant fans (for Ex and smoke extraction applications) must be replaced completely.

Maintenance
Warranty claims can only be made if maintenance work is carried out correctly and written evidence thereof is provided. We recommend regular maintenance intervals to ensure continuous fan operation. These maintenance intervals are specified in the “Activities” table below. In addition, the operator must carry out follow-up activities such as cleaning, replacing defective components, or other corrective measures. For traceability reasons, a maintenance plan must be created which documents the work carried out. This must be created by the operator. If the operating conditions are “extreme”, the maintenance intervals must be reduced so that maintenance is carried out more frequently. Examples of extreme operating conditions:

Fan unit in rare use (less than once a month)The fann used for emergency operation
Durable ambient temperature > 40 ºC or < -10 ºC

Activities

Activities for fans used for emergency operations.

Spare parts

Use original spare parts from Systemair only.
When ordering spare parts, please specify the serial number of the fan. This can be found on thenameplatee.

Variable-speed fans

Important
The fan may be destroyed due to unpermitted frequencies.

Pay particular attention to damage from vibrations.
After commissioning, start with shorter maintenance intervals.
If no damage occurs, adjust the maintenance intervals up to those stated in the operating instructions.
Responsibility for gradual adaptation is with the system operator.

Overhaul/further maintenance
Pay attention to the safety references and preconditions as in normal maintenance. For the following activities and functions, contact Systemair:

complete overhaul of motors
replacement of bearings
re-winding of motors
monitoring of condition
vibration analysis

After 20,000 hours of operation or 5 years of normal operation

Check the condition of the shaft sealing rings and shaft bearings and take action if necessary.

After 30,000 to 40,000 hours of operation

The bearings must be replaced at the end of the grease service life (about 30,000 to 40,000 hours in standard applications).

Work before switching on again

Attach all the safety and protective devices tightly and securely.
Remove all the devices with which you have blocked the rotor.
Remove all assembly residues and foreign bodies from the area around the fan unit.

Cleaning

Procedure
Keeping the fan clean extends its service life.

Do not use steel brushes or sharp-edged objects.
Do not use a high-pressure cleaner (steam jet cleaner) under any circumstances.
Do not bend the fan blades when cleaning.

Deinstallation/dismantling
Deinstall and dismantle the fan in reverse order of installation and electrical connection.

Disposal

Ensure material is recycled. Observe national regulations.
The device and the transport packaging are predominantly made from recyclable raw materials.
Disassemble the fan into its components.
Separate the parts according to:
- reusable material
- material groups to be disposed of (metal, plastics, electrical parts, etc.)

Commissioning Report
Warranty claims can only be made if commissioning work is carried out correctly and written evidence thereof is provided.

Systemair GmbH Seehöfer Str. 45 97944 Boxberg Germany
Tel.: +49 (0)7930/9272-0
Fax: +49 (0)7930/9273-92
info@systemair.de
www.systemair.de

FAQs

Q: What should I do if the fan stops working suddenly?
A: Check the power supply, and fuse, and ensure proper installation. If issues persist, refer to the troubleshooting section in the manual.

Q: Can I use these fans for outdoor applications?
A: It is recommended to use these fans in indoor environments unless specified for outdoor use by the manufacturer.

Documents / Resources

systemair IV, IV EC Induction Fans [pdf] Installation Guide
IV, IV EC, IV IV EC Induction Fans, IV IV EC, Induction Fans, Fans

References

User Manual

system air IV, IV EC Induction Fans

Specifications