Rittal 3144.000, 3145.000 Assembly And Operating Instructions Manual

Tangential fans for

Assembly and operating instructions

3144.000

3145.000

482,6 mm (19”)

Contents

Contents ................................................... 2

1 Application ....................................... 3

2 Safety instructions ........................... 3

3 Note on the ErP directive ................. 3

4 Transport, storage ........................... 3

5 Mounting .......................................... 4

6 Electrical connection ........................ 4

7 Operating conditions ........................ 4

8 Start-up ............................................ 4

9 Maintenance, repair ......................... 5

10 Cleaning .......................................... 5

Contents

11 Disposal / recycling .......................... 6

12 Dimensions ...................................... 7

Application

EN

The fans may only be operated when
they are installed as intended, and
when safety is ensured by safety

protection measures.

• For motors without a temperature monitor, a

1 Application

• Cross flow fans (type designation see rating
plate) are not ready-to-use products, but
designed as components for aerodynamic
devices, machines and installations.

equipment according to DIN EN ISO
13857 (DIN EN ISO 1210 0) or b y oth er

motor cut-out switch is to b e used for P1 > 750
W (P2 ≥ 500 W)!

• Blocking or braking the fan by, say, pushing
objects into it is forbidde n. This leads to heat ed
surfaces and damage to the impeller.

• It is not possible to exclude a residual risk due
to incorrect use, malf unction or force majeure.
The designer or constructor of the installation
must take suitable safety measures in
accordance with DIN EN 12100, e.g. protec
tion devices, in order to prevent hazardous
situations arising.

• Cross flow fans are suited to a wide range of
applications due to their slim construction
design. They stand out against other fans
particularly by virtue of their broad laminar air
band with favourable noise res ponse.

• Speed control through voltage reduction is
possible, depending upon the application.

• All fans are dynamically balanced on two
planes in accordance with DIN ISO 1940,
Section 1.

2 Safety instructions

• The cross flow fans are only intended for the
transfer of air or air -like mixtures. They ca nnot
be used in hazardous ar eas for the transfer of
gas, mist vapours or mixtures . Nor can the y be
used for the transfer of s olid components i n the
transfer medium.

• Mounting, electrical connection and
commissioning may only be carried out by
trained specialized p ersonnel who observe the
relevant regulations!

• The fan is only to be operated within the ranges
specified on the type plate!

• Use the fan only in the authoris ed fashion and
only for the tasks and flow media specified in
the order!

• Designer, manufacturers or operators are
responsible for proper and safe installation as
well as for safe operation!

• Safety features, e.g. guard gr illes, are no t to be
dismantled, circumvented or made inoperative!

• If thermal protector is integrated into winding as
motor protection, the thermal protectors must
be connected.

• If the temperature monitor is not integrated into
the motor circuit (→ wiring diagram), a tripping
device is required.

3 Note on the ErP directive

Rittal GmbH & Co. KG wishes to point out that,
based on the directive (EU) no. 327/2011 of the
Commission of 30th of March 2011 for enforcing
directive 2009/125/EC (hereinafter referred to as
ErP directive), the operat ional area of certain fans
within the EU is bound by certain prerequisites. The
fan may only be used within the EU when it m eets
the requirements of the ErP directive.
If the said fan does not have a CE mark (cf.
especially the rating plate), use of this product
within the EU is not admissible.
All ErP-relevant information comprises
measurements which are determined using a
standardised measurement set-up. More details
can be obtained from the manufacturer.

4 Transport, storage

Wear safety shoes and gloves for handling!

• Transport the fan(s) either in the original
packaging or using the transport fixtures
provided (mounting br ackets and bored holes).
Use suitable lifting equipment, insofar as
required by the dimensions or weight.

• Do not transport the fan by the connecting
cable!

• Avoid excessive vibration and shocks.

• Be on the alert for any damage to the

packaging or the fan.

• Store the fan in the origina l packaging in a dry
area protected from the weather or protect it
from dirt and weather until final installation.

• Avoid exposure to extreme heat and cold.

• Avoid excessive storage periods (we

recommend a one year max.) and inspect the
motor bearings for proper operation prior to
installation.

Assembly and operating instructions Tangential fans 3

5 Mounting

Mounting, electrical c onnection and commiss ioning
are only to be performed by trained service
personnel. Adhere to all machinery-related
requirements and specifications supplied by the
system manufacturer or machine builder. Wear
safety shoes and gloves for handling!

• The following applies for all cross flow fans:

- Do not install distorted.

- Housing or mounting bracket must be fixed
flat on a level surface.

- Do not apply force (levering, bending).

- Standard horizontal installation.

- Depending on installation circumstances
and application, the open motor (IP 10) will
require protection against water spray and
objects falling into it.

- If the motor installation is insulated (version
with structure- borne noise decoupling
using rubber elements), the fan housing
must also be earthed where components
under voltage are connected to it.

- The fan discharge must not be adversely
affected with respect to flow engineering by
installation of or attachments to the fan
(e.g. shifting of housing edges, protruding
seals).

- Connect fan only to electrical circuits that
can be disconnected with an all-pole
isolating switch.

- Electrical connection corresponding to
wiring diagram on housing.

- Connect the temperature monitor to the

tripping device and/or motor cut-out switch.

6 Electrical connection

• Must only be carried out by trained personnel
(DIN EN 50 110, IEC 364).

• Connect fan only to electrical circuits that can
be disconnected with an all-pole isolating
switch.

• The motors have partly metal terminal box or
partly screened connecting line (connection to
EC-controller).

• Only use lines which can guarantee a
permanent seal around the cable glands
(pressure-resistant, dimensionally-stable,
round-centred jack et; e.g. by means of gusset
filling)!

• Thermal contacts have to be connected.

• Attention: Connection directly to the mains

supply results in a damage of the motor.
Electrical connections must not be short-

Mounting

circuited since there is danger of de­magnetization.

• Do not touch the connection ends of the

motor when it has been switched off and is
coming to a stop – Elect rical shock due to
the effect of the generator.

7 Operating conditions

• Do not operate the fan in an explosive
atmosphere.

• Switching frequency:

- The fan is rated for S1 continuous

operation.

- Controls must not allow extrem e switching

operation.

• Ziehl-Abegg cross flow fans with integrated
external rotor motor are, without restriction,
suitable for operation with frequency inverters
when the following points are observed:

- Between the inverter and the motor,

sinusoidal filters should be incorporated
which are effective for all phases
(sinusoidal output voltage, phase against
phase, phase against prote ctive conductor)
as offered by manufacturers. Please ask
for our technical information L-TI-0510.

- du/dt filters (also called motor or

suppression filters) cannot be used in
place of sinusoidal filters.

- When using sinusoidal filters, screened

motor leads, metal terminal boxes and a
second earth connection t o the motor can,
if necessary, be omitted. Check-back by
the supplier of the sinusoidal filter.

• If the operational leak age current exceeds 3.5
mA, earthing in compliance with DIN EN 50
178, art. 5.2.11.1 must be provided.

• Noise problems can be eliminated by using a
sound attentuator.

• A-rated sound power levels of over 80 dB(A)
are possible, see product catalogue.

• Corrosion is possible at the cutting edges on
sendzimir galvanised parts.

8 Start-up

• Before first-time start-up, check the following:

- Have installation and electrical connection

been properly completed?

- Safety equipment is in place (→ Contact

protection).

- All leftover installation materials and other

foreign materials have bee n removed from
the fan cavity.

- Is the protective earth connected?

- Temperature monitor/motor protection

switch are

Maintenance, repair

EN

professionally connected and operating
properly.

- Connection data complies with the
specifications on the type plate.

• Start-up:

- Switch fan on in accordance with switched
state and local conditions.

- Check: Smoothness of motor operation,

Direction of rotation/direction of
conveyance when looking at the motor
(see also Fig. 1, 2)

Figure 1: Direction of rotation: right

9 Maintenance, repair

Wear safety shoes and gloves for handl ing!

• Due to the selection of bearings with "lifetime
lubrication" (specia l grease), the cros s flow fan
is maintenance-free. Once the grease
consumption period has expired (for standard
applications, approx. 20-30,000 hrs., for direct
current motors with coll ector, approx. 5-10,000
hrs.), it is necessary to replace the bearings.

• Take note of abnormal operating noise!

• Replace the bearings at th e end of the grease-

consumption period, or if they should become
damaged. Ask for our Maintenance Guide or
contact our Repair Department (special tools
may be required!).

• Replace bearings only with original parts.

• In the event of any other damage (e.g. motor

damage or damage to the fan cylinder), ple ase
contact our Repair Department.

• On 1~ motors, condenser rating can decrease
with time. Life expectanc y approx. 30, 000 hrs.
per DIN EN 60252.

• Outdoor fans: If a fan is stationary for long
periods in a humid atmosphere, it should be
switched ON for minimum of two hours
every month to remove any moisture that
may have condensed within the motor.

• Allow maintenance work to be carried out by
trained specialists only.

• For all repair and maintenance work:

- Observe the safety and labour regulations

(DIN EN 50 110, IEC 364).

- Fan cylinder has come to a standstill!

- Open the electrical circuit and secure

against being switched back on.

- No maintenance work at running fan!

• After dismantling and reinstalling an impeller,
the entire rotating unit must be rebalanced in
accordance with DIN ISO 1940,-1.

• Keep the airways of the fan free- danger
because of objects dropping out!

• Do not bend fan cylinder or blades!

10 Cleaning

• Regular inspection, and cleaning is necessary
to prevent

- imbalance due to ingress of dirt.

• Clean the fans`s flow area.

• Keep fan air way open; clean t he fan cylinder

with a brush when necessary.

• Watch out for vibration free motion.

• Maintenance interval in accordance with the

Figure 2: Direction of rotation: left

Assembly and operating instructions Tangential fans 5

degree of contamination of the impeller!

• You can clean the entire fan with a moist cloth.

Disposal / recycling

• Do not use any aggressive, paint solvent
cleaning agents when cleaning.

• Never use a high-pressure cleane r or water­spray for cleaning - particularly when the
ventilator is running.

• If water enters the motor:

- Dry off the motor winding before using it

again.

- Replace motor ball bearings.

• Wet cleaning under voltage may lead to an

electric hock - danger to life!

11 Disposal / recycling

Our products are manuf actured in compliance with
valid international standards and regulations. If you
have any questions about how to use our products
or if you are planning special applications, please
contact:

Assembly and operating instructions Tangential fans 6

12 Dimensions

Dimensions