System air EX 140A Troubleshooting guide

Document in original language | 135371 · A007
Explosion proof fans
EX 140A/180A — Presafe 16 ATEX 8598 X
Operation and Maintenance Instructions GB

135371 | A007
© Copyright Systemair AB
All rights reserved
E&OE
Systemair AB reserves the rights to alter their products without notice.
This also applies to products already ordered, as long as it does not affect the previously agreed specifications.

135371 | A007
Contents
1 EU Declaration of conformity..............................1
2 Safety information...........................................2
2.1 Specific conditions of use (1-4) .................4
3 Transport and storage ......................................4
4 Technical data ................................................5
4.1 Dimensions...........................................5
4.2 Wiring..................................................6
5 Installation.....................................................7
5.1 Installation example................................8
6 Checklist .......................................................9
7 Commissioning ...............................................9
8 Maintenance, service and repair ....................... 10
9 Other..........................................................11
9.1 Name plates ....................................... 12

EU Declaration of conformity | 1
1 EU Declaration of conformity
Manufacturer
Systemair Sverige AB
Industrivägen 3
SE-739 30 Skinnskatteberg SWEDEN
Office: [phone] Fax: [phone]
www.systemair.com
The manufacturer hereby declares that the following products:
Centrifugal fans EX 140A/180A
EU-type Examination Certificate (ATEX) Presafe 16 ATEX 8598 X DNV GL Nemko Presafe AS (2460)
Quality Assurance Notification (ATEX) Presafe 16 ATEX 8871Q DNV GL Nemko Presafe AS (2460)
(The declaration applies only to a product in the condition that it was delivered in and that was installed in the facility in
accordance with the included installation instructions. The insurance does not cover components that are added or ac-
tions carried out subsequently on the product).
Comply with all applicable requirements in the following directives:
• ATEX Directive 2014/34/EU
• Machinery Directive 2006/42/EC
• EMC Directive 2014/30/EU
The following harmonized standards are applied in applicable parts:
EN 60 079-0:2012/A11:2013 Explosive atmospheres — Part 0: Equipment - General requirements.
EN 60 079-1:2014 Explosive atmospheres — Part 1: Equipment protection by flameproof enclosures
"d"
EN 60 079-7:2015 Explosive atmospheres — Part 7: Equipment protection by increased safety ''e''.
EN 14986:2017 Explosive atmospheres — Design of fans working in potentially explosive
atmospheres.
EN ISO 12100:2010 Safety of machinery - General principles for design - Risk assessment and risk
reduction.
EN ISO 13857 Safety of machinery - Safety distances to prevent hazard zones being reached
by upper and lower limbs.
EN 61000-6-2 Electromagnetic compatibility (EMC) – part 6-2: Generic standards - Immunity for
industrial environments.
EN 61000-6-3 Electromagnetic compatibility (EMC) – part 6-3: Generic standards - emission
standard for residential, commercial and light-industrial environments.
Skinnskattberg 09–04–2018
Mats Sándor
Technical Director
135371 | A007

2| Safety information
2 Safety information
Danger
• Before maintenance, service or repair cut the power supply (all-pole breaker) and the impeller to stop.
• Mounted safety equipment must not be removed, bypassed or be disabled!
• Cleaning with a damp cloth when the fan is energized can cause electric shock!
The installation instructions are part of the product and should be stored so that it is always available. The manufacturer
of the system or the plant is responsible for the installation and that safety instructions are in harmony with the
requirements.
EX 140A/180A are certified according to Directive 2014/34/EU (ATEX). Fan Category for fans is BV3 quality grade G6.3
according to ISO 14694. The motor rating plate (A, figure 1) shows data for the motor and does not apply for the com-
plete fan. The fan rating plate shows data for the complete fan (B, figure 1). The field of explosion protection is stated
on the fan rating plate (for example Ex de IIC T4). The fan fulfils the requirement for zone 1 but does not separate zones.
Fan may be used in explosive environments for the transport of gas, but not the transport of hot fumes.
The fan is designed for transport of air or explosive atmospheres in Zone 1 and Zone 2. Transport of solids, shares of
solids or mixtures of dust/air is not allowed. The transported air must not corrode the fan housing, fan blades or motor
(aluminium and steel). Rust particles may not occur in the airflow.
Resonance vibrations can occur due to mounted components and should be checked during commissioning.
The fans must not be installed outdoors.
B
C
A
< 40 mm
Fig. 1
A = Motor data
B = Fan data
C = Production label
Installation, electrical connection and commissioning may only be performed by qualified personnel and in accordance
with the requirements and regulations for electrical installations in areas with explosive atmospheres.
Installation, inspection and maintenance in accordance with EN 60079-14/-17 meets the requirements. Fan should be
installed and protected against foreign objects that come in contact with moving parts and may cause sparks.
No moving parts should be accessible after installation (EN ISO 13857).
Inspection and cleaning should be done regularly, cleaning of deposits will prevent imbalance of the impeller. Make
sure that all the details are correctly reassembled after inspection/cleaning (see chapter 8).
Protective earth (PE) must be connected, the external ground wire connection is placed on the motor (figure 1). Electri-
cal connections must be made according to the wiring diagram. When the fan is controlled the current can increase at
regulated voltage, the power must never exceed the rated power, see table 1. Data provided on the rating plate applies
to air with density of 1.2 kg/m3.
135371 | A007

Safety information | 3
Table 1
Rated data
Fan type Voltage/Frequency P
W
I
A1
rpm
min.—max.
Isol.
class
Weight
kg
Min. flow
m3/h
Max. flow
m3/h
Ex 140A-2
230V(Δ) 3~ 50Hz 777 3,39
1550-2980
F 10,0 100 1270
380-415V(Y) 3~ 50Hz 822 1,96 F10,0 100 1270
Ex 140A-2C 220-240V 1~ 50Hz 848 3,85 1320-2960 F 10,7 100 1260
Ex 140A-4
230V(Δ) 3~ 50Hz 159 1,00
800–1485
F 6,3 100 610
380-415V(Y) 3~ 50Hz 168 0,62 F 6,3 100 615
380-440V(Y) 3~ 60Hz 210 0,53 550–1795 F 6,3 100 740
Ex 140A-4C
220-240V 1~ 50Hz 178 1,05 625–1485 F 6,7 100 620
220-240V 1~ 60Hz 218 0,94 545–1795 F 6,7 100 705
Ex 180A-4
230V(Δ) 3~ 50Hz 227 1,07
605–1480
F6,4 100 875
380-415V(Y) 3~ 50Hz 238 0,67 F 6,4 100 875
380-440V(Y) 3~ 60Hz 326 0,63 530–1790 F 6,4 100 1030
Ex 180A-4C
220-240V 1~ 50Hz 234 1,18 450–1480 F6,9 100 880
220-240V 1~ 60Hz 323 1,39 370–1780 F 6,9 100 1010
1The current may exceed the rated current on the fan label as long as the total power consumption does not exceed the rated
power value given.
Step 12 3 4 5
Voltages 1~ 80V 105V 130V 160V 230V
Voltages 3~ 95V 145V 190V 240V 400V
Motors are equipped with PTC resistors in triple execution. More than two PTC resistor chains may not be connected in
series, as this can lead to indefinite suspension. Max. test voltage of PTC resistors are 2.5 V.
Inspection and maintenance of the temperature monitoring unit shall be made according to instructions and according
to a time interval specified in the certificate and instruction manual of the temperature monitoring device.
Note:
Speed control using frequency inverter is not permitted. It is only permitted to use transformer-based
controls for speed control. The fan current/power must not exceed the current/power specified on the fan
rating plate at rated voltage. By increasing the static back pressure the fan can be throttled up to a lower
current/power if the speed control is not in use.
135371 | A007

4| Transport and storage
2.1 Specific conditions of use (1-4)
1. Thermal protectors (PTC) applied in the motor windings shall be connected to an appropriate protection device con-
forming to EN 50495.
2. Ducts or sockets on inlet and outlet has to be protected with IP20 according to EN 60529
3. The fastening screws used for el. motor have to comply with quality 8.8 ISO 898-1.
4. The supply voltage must be within the values specified on table 2.
Table 2 Rating and ambient temperature
Model Phase Supply voltage Tamb
EX 140A-2C 1 220-240V AC 50Hz -20°C to +60°C
EX 140A-2 3 230V (Δ) AC 50Hz -20°C to +60°C
380-415V(Y) AC 50Hz
EX 140A-4C, EX 180A-4C 1220-240 AC 50Hz -20°C to +60°C
220-240V AC 60Hz
EX 140A-4, EX 180A-4 3
230V(Δ) AC 50Hz
-20°C to +60°C
380-415V(Y) AC 50Hz
440V(Y) AC 60Hz
3 Transport and storage
The fan is packed at the factory to withstand normal handling during transit. Avoid blows and shock loads. Store the fan
in a dry, dust-free place without damaging vibrations (v eff <0.2 mm/s) to avoid bearing damage. Avoid long storage
periods (we recommend max.1 year). Before installing the fan, check the motor bearings for noise (spin the impeller
carefully by hand).
Caution
Do not lift the fan in any cable, junction box or the impeller.
135371 | A007

Technical data | 5
4 Technical data
4.1 Dimensions
øF
M4(4X)
A
B
C
E
øG
115
H
D
23.5
ø9 (4X)
ø7 (6X)
I
J
L
KEX 140 ø6(4X)
EX 180 ø7(4X)
M
O
N
Model A B C D E øF øG H
EX 140A–4, EX 140A–4C 301 262 227 285 154 118 158 231
EX 180A–4, EX 180 A-4C 314 294 261 302 171 149 194 211
EX 140A-2, EX 140A-2C 324 262 227 291 154 118 158 211
Model I J K L M N O Weight, kg
EX 140A–4, EX 140A–4C 191,5 130 115 94 120 105 92 6,3/6,7
EX 180A–4, EX 180 A-4C 191,5 125 110 86 140 120 109 6,4/6,9
EX 140A-2, EX 140A-2C 210,5 130 115 94 120 105 92 10/10,7
135371 | A007

6| Technical data
4.2 Wiring
Ex 140A-2C,140A-4C, 180A-4C Ex 140A-2, 140A-4, 180A-4
PTC
V1
U2
2
U1
L
W2
1
N
W1
V2
CAP
2
1
3LL2L1
V2U2W2
W1V1U1
PTC
2
1
V1 W1
V2U2W2
U1
L3L21L
PTC
220-240V 1 ~ 380-440V 3~ (Y) 230V 3~ (D)
Sample motor protection
Us = supply voltage H1 = fault indicator
S1 = off switch F1-F4 = fuses
S2 = push button on K1 = contactor
S3 = push button external reset TP = PTC thermistor
Sample wiring
L1
L2
L3
N
L1
L2
L3
N
A1
A2
T2 T1
14 11 12
U-EK230E
A1
A2
T2 T1
14 11 12
U-EK230E
K
L1 L2 L3
T1 T2 L1 L2 L3 T1 T2
M
3~ D/Y
M
3~ D/Y
L1 L2 L3 N
RTRD/U
U1 V1 W1 TK TK
135371 | A007

Installation | 7
5 Installation
Always read the safety information before installation. The fan is intended for permanent installation. Installation re-
quires an inspection of the hazardous area to be done according the regulations and classification standards (within the
EU, EN 60079-10).
Installation according EN 60079-14 deemed to meet the installation requirements in the EU. Compliance with the Direc-
tive 2014/30/EU "Electromagnetic Compatibility" applies only when the product is directly connected. Integrated into
an electrical system or combined with other components (e.g. controls/control equipment) the installer/plantholders
are responsible for compliance.
The installation must be set up at a safe distance to transmitter units or protected with suitable screens.
Before starting installation check for any transport damage and that the impeller do not touch parts of the fan housing.
Ambient temperature and the conveyed air temperature should be between -20°C and +60°C for all versions. EX
140A/180A are intended for operation within the specified temperature range. The motor is cooled by a integrated
cooling fan which openings must not be covered, min. distance to the air intake is 40 mm (see figure 1). Avoid heat
sources near the motor and the motor air intake.
The fan can be mounted in any direction. When the motor air intake is mounted upwards the intake must be protected
against falling objects/liquid. Install EX 140A/180A in the correct air direction (arrow on housing), see figure 2. The fan
must be installed so that service and maintenance can be performed easily and safely. Make sure the fan is firmly fixed
and securely anchored. EX 140A/180A must be installed so that vibrations can not be transmitted to the duct system
or building structure.
Fig. 2
Disturbing noise can be avoided by installing silencers (accessory).
Duct installations must be carried out so that enclosure class IP20 (mesh width below 12 mm) is fulfilled on the inlet
side and outlet side. Parts that ensure the IP rating must be properly designed with regards to strength and material.
Rust particles must not occur in the airflow.
Components mounted before and after the fan or those that are in the direct air stream, may not have unprotected alu-
minium or steel surfaces. It requires a surface coating that meets minimum scratch test level 2 according to EN ISO
2409.
Mains circuit breaker must precede the fan. Electrical connections are made according to the wiring diagram, chapter
4.2. All fans for 3-phase (Δ/Y) are supplied from factory wired for 400V 3-phase (Y). If electrical connections are made
inside the explosive environment then the used components must be intended for the relevant Ex environment.
If the distance to moving parts is such that one can touch the rotating part then a protective grille has to be installed,
use an appropriate screw or rivet. Fan may not be mounted in direct sunlight.
Connection cable to the fan should be installed so that it is mechanically protected and suitable for use in the surround-
ing environment. Connection cable for the EX 140A/180A should have a diameter of 6.5 to 12 mm and a cross section
of 1.5-2.5 mm2. The junction box on the motor is designed for the same environment as the fan. For external grounding
of the chassis ground cable should be mounted on the grounding screw on the motor (figure 1).
Cleaning the fan is to be done after completion of assembly.
135371 | A007

8| Installation
5.1 Installation example
Fig. 3
Note:
Installation example (figure 3) works only as a guide for installation where the dimensioning of suspension
devices must be carried out by the installer and adapted to the prevailing conditions. Installation
components mentioned in the text are accessories that can be provided and not part of the ATEX-
certification.
Mounting the fan (3). When connected to a duct system or protective grilles fit appropriate socket on the housing (inlet
socket (2)/outlet socket (4)), then connect the duct (1) or protective grilles (5).On the fan intake section there are 4
pcs M4 threaded holes for fastening the inlet socket, screws must not protrude inside the housing (the housing thick-
ness are 5 mm).
135371 | A007

Checklist | 9
6 Checklist
Always read the safety instructions prior to commissioning. Before starting for the first time, ensure that:
• The ambient temperature, humidity, dirt in the environment and the air’s corrosive properties have been taken into
consideration.
• The impeller do not hit parts of the fan housing.
• Installation and electrical wiring are carried out in a professional manner
• Safety equipment is installed
• Any installation debris and foreign objects are removed from the impeller and air intake area.
Warning
Loose objects inside the housing may be flung out!
• Protective conductor and external earth conductor are connected.
• Cable glands are sealed
• PTC resistors and tripping device is connected and fully functional.
• Connection data corresponds with the data on the rating plate: Max. voltage +6%, -10%, according to IEC 38. Rated
current/power must not be exceeded at rated voltage.
• The voltage is permitted to vary down to 80 V (1~) and 95 V (3~) with transformer.
• The motor cooling fan must have clearances of at least 40 mm (see figure 1.)
7 Commissioning
Commissioning may only take place if all safety instructions and controls according the checklist is performed without
comment. When putting into operations check that:
• No moving parts is touching the housing.
• The impeller direction of rotation is correct (direction arrow on housing, see figure 2).
• The motor runs smoothly without abnormal noise and that the operation is without vibrations. (Strong vibrations due
to imbalance, e.g. caused by transport damage or improper handling can lead to damage, check for imbalance as
necessary.)
• All electrical conducting components are grounding through contact washers.
• The fan is not controlled by extensive on and off regulation.
• The motor are intended for continuous operation S1. The control system cannot permit large numbers of switching.
• A-weighted sound pressure levels above 70 dB(A) can occur, see the product catalogue.
Note:
If the fan is stationary for longer than a week in a damp environment it must be in operation for at least 2
hours every week to remove any condensation in the motor.
135371 | A007

10 | Maintenance, service and repair
8 Maintenance, service and repair
Caution
Always read the safety information before maintenance or service.
Repair or replacement of components is not permitted on EX 140A/180A. For other questions about the fan, contact
technical support. Cleaning interval should be in proportion to how fast the impeller and cooling fan becomes dirty. Dis-
assembly of the impeller is not allowed.
Check that:
• The installation is accessible for cleaning and inspection work.
• No Ex atmosphere is present before switching of the fan.
• That the fan is not energized and the current circuit is interrupted and secured against restart.
• The impeller has stopped before any maintenance/cleaning begins.
• Applicable health and safety regulations are followed (EN50 110, IEC 364).
Danger
Cleaning with fluids when the fan is connected to voltage can cause an electric shock – danger to life!
• Under no circumstances may a high pressure cleaner or water jet be used.
• No aggressive solvents may be used as cleaning agents
• The cleaning should be carried out on the flow area and cooling air in/outlet area.
• Loose screws must be attached
• If the motor protection has tripped, check that the fan is not blocked. Contact the manufacturer if the fan does not
start after you have checked and reset motor protection.
• Cable glands on the motor must have at least the same Ex class as the fan, see figure 4.
After maintenance or servicing, check that:
• There is no abnormal noise and that the operation is without vibrations.
• The impeller balance weights have not been moved and that the impeller blades have not been bent.
135371 | A007

Other | 11
9 Other
The fan should be inspected and cleaned when necessary but at least once a year so that imbalance and excessive
wear on the bearings is avoided. At any sign of wear, contact technical support. A filter before the fan inlet can extend
the fan cleaning interval. At other damages (eg, cable and cable glands), please contact technical support.
If the screws need to be changed then the strength class of new screws must be at least 8.8 and with suitable screw
locking. Required tightening torques M4=1,5 Nm, M5=2 Nm and M6=5 Nm. Cable glands=max. 5 Nm. Nuts in junction
box at EX 140A/180A = 1,2 Nm.
Should fans be on stock or put into operation after a long period, or if they have been exposed to condensation during
an extended period, the motor winding insulation resistance must be measured before the fan is put into operation. If
the values are equal to/less than 1.5 Mohm, the motor winding must be dried. Contact technical support for
instructions.
The fan mainly consist of recycled materials that can be recycled again when the service life of the product has ended.
Check and follow the relevant legislation for recycling.
Fig. 4 Name plate
AId. nr. of Notified Body
BThe Epsilon-X mark indicates that the equipment comes under ATEX
CEquipment group II is intended for use in areas with explosive gas, except mining gas
DCategory 2, zone 1, G = potentially explosive gas mixture can be occasionally expected to during normal
operation.
EExplosion-protected material
FType of protection db = equipment protection by flameproof enclosure
eb = equipment protection by increased safety
GApparatus group IIC (also applies to IIA and IIB)
IEPL Equipment Protection Level
HTemperature class T4, max. surface temperature for fan housing and motor is 135 °C, can be used for
gas mixtures with ignition temperature exceeding 135 °C.
JCertificate Number
135371 | A007

12 | Other
9.1 Name plates
135371 | A007

Other | 13
135371 | A007

14 | Other
135371 | A007

135371 | A007

Explosion proof fans · Operation and Maintenance Instructions · 135371 · en_GB · 21-01-2019 · A007
Systemair Sverige AB
Industrivägen 3
SE-739 30 Skinnskatteberg, Sweden
Phone [phone]
Fax [phone]
www.systemair.com