Technical Data - Maico ERM 18 Ex e Instrucciones De Montaje Y Funcionamiento

13 Transport, storage
DANGER
!
Danger from unit falling if transporting with
unauthorised transport equipment.
Use lifting and transport equipment suitable and
approved for the fan and transport weight.
Do not stand under a suspended load.
Note weight and centre of gravity (centre).
Observe the maximum permitted loading capacity
for lifting gear and means of transport. For total
weight  rating plate on title page.
During transport do not place load on sensitive
components, such as impeller or terminal box.
Fit transport equipment correctly.
CAUTION
!
Risk of cuts from metal housing plates
with sharp edges. Wear personal protec-
tive equipment (cut-resistant gloves) for
installation.
● Only ship unit in original packaging.
● Store unit in dry location (-25 to +55 °C).

14 Technical data

 Rating plate on title page or on unit.
Nominal size, depending 180, 220 (with reduction
on type to 200) or 250
Degree of protection of
IP 54
motor
Air volume
 Rating plate
Sound power level
 Fig. A/rating plate:
Vibration values
BV-3
(ISO 14694)
Weight
 Rating plate
15 Ambient/operating conditions
● Permitted ambient and airstream temperature:
-20 °C < Ta < +50 °C. For special versions
 rating plate.
● Division of maximum surface temperature into
classes. Temperature class T...  rating plate.
Temperature class T1 T2
Maximum surface
450 300 200 135 100
temperature [°C]
16 Mounting
During mounting, note the applicable installation
requirements  especially EU Directive 1999/92/EC,
EN 60079-14 and VDE 0100 (in Germany).
Mounting instructions
NOTICE: Damage to the unit
Units with pre-installed line feedthrough to the
terminal box may be damaged if the connec-
tion line is pulled or the unit is lifted using the
line. Do not pull connection lines or lift the unit
using the lines.
ERM .. Ex e - fan:
● for permanent installation in ducts with ventila-
tion duct or flexible duct suited to the unit type
(nominal size).
● for surface mounting on duct, wall, foot with
sufficient load-bearing capacity.
● Any installation position, do not install in
damp rooms with air being transported
upwards.
● for ventilation or air extraction, depending on the
installation position.
● Unit connection sockets on both sides for direct
installation in ventilation ducts.
● For reducers for connecting to other duct diame-
ters  Internet.
● To avoid the transmission of vibrations to the duct
system, we recommend mounting type ELM-Ex
and ELA Ex flexible cuffs, FUM mounting foot and
GP vibration dampers from MAICO.
Checks before mounting
1. Perform the following checks: D = detailed
check, N = close inspection, S = visual inspection
Test schedule
I Unit corresponds to EPL/zone
requirements of the installation
location.
II Correct device group.
III Correct temperature class for units. ●
Degree of protection (IP degree)
IV
of units corresponds to level of
protection / group / conductivity.
V Unit power circuit name present
and correct.
VI Housing and connections
satisfactory.
Before installing, check that the
VII
motor bearing is working properly.
Unit mounting
1. Check unit for transport damage.
2. Prepare installation location for duct, wall or foot
mounting: Lay ventilation duct or flexible duct.
If mounting on wall, make sure there is a level
support surface.
3. Lay a permitted power cable to the installation
location. Use a connection cable suited to the
unit type.
CAUTION
!
Risk of cuts from metal housing plates
with sharp edges.
Wear personal protective equipment (
cut-resistant gloves) for installation.
4. ERM .. Ex e: Transport fan to installation location.
Note safety instructions and data in chapters 12
to 15.
DANGER
!
T3 T4 T5 T6
fan may vibrate during operation.
The
85
Should the
risk of death if the fan falls as a result of its
inherent weight.
with sufficient load-bearing capacity and sufficiently
dimensioned mounting material.
5. If mounting with FUM mounting foot: Mount
suitable mounting foot on fan housing with the
self-cutting tapping screws provided (do not
use screws near the impeller). Any installation
position. Make sure that there is free access to
terminal box at the installation location.
6. Install fan and firmly screw fan down to wall at
all flange holes [X] (4 items). Mounting material
of the sufficient size should be provided by the
customer. Note direction of rotation and air flow
 air direction arrows on unit sticker.
7. ERM 22 Ex e: If reducing to 200 mm, fit the
reducer [3] between the fan and ventilation duct
or flexible cuff.
DANGER
!
Explosion hazard when operating without pro-
tective device should foreign bodies fall or be
drawn into the air channel  Risk of death due
to spark formation. Use an approved protective
grille to protect the impeller from contact, anything
falling in and foreign bodies being sucked into the
air channel .
D N
● ●
● ●
●
● ●
● ●
● ●
● ●
attachment come loose, there is a
Only mount on walls/ceilings
8. If the air inlet or outlet is not covered, mount a
permitted protective grille, e.g. MAICO SGM-Ex
protective grille in front of the unit  Figure C.
9. Ensure a sufficient fresh air supply intake.
10. Fit suitable insulation, sound-deadening and
installation material.
17 Electrical connection  Fig. D
DANGER
!
S
Danger from electric shock. Before accessing
●
the connection terminals, release all power supply
circuits, protect against switching on again, ensure
unit is de-energised, earth and connect the EARTH
with active parts which are to be short-circuited,
and cover or make inaccessible adjacent energised
parts. Attach warning sign in clearly visible place.
●
Ensure that there is no explosive atmosphere.
EXPLOSION HAZARD
● !
Danger of short-circuits through confusion
● and incorrect wiring of mains connection and
connection to operating capacitor.
It is essential that the unit is wired correctly as
●
shown in the wiring diagram.
NOTICE: Damage to the unit
No speed control allowed.
Operation only permitted:
● with permanent electrical installation.
● with connection cable permitted for explosion risk
areas and load.
● with mains disconnector with a contact opening
of at least 3 mm per pole.
● with permitted voltage and frequency
 rating plate.
● with explosion protection terminal box provided.
● with protective-conductor terminal, at mains end
in terminal box. There is a terminal on the outside
of the fan for earthing a duct system.
● if operating in intended air power range.
● at permitted operating point. The current and
power stated on the rating plate are measured
with free suction and free blow-out. They may be
higher or lower depending on the operating point.
A motor protection switch is essential for
i
thermal fusing.
Connect the fan electrically
1. Switch off power supply circuits, position a visible
sign warning against being accidentally switched
back on.
2. Open terminal box, route cables into terminal
box and screw down with cable feedthrough.
Note tightening torques (in Nm at 20 °C). Check
tightness and tighten if necessary.
Terminal box cover:
M4 stainless steel cylinder head bolts
Mantle terminals
M20 x 1.5 cable feedthrough:
3x connection thread
Cap nut
Clamping range
3. Wire fan  wiring diagram Fig. D. Insulate any
unnecessary cable cores.
Earthing of fan and duct system
1. Connect PE conductor at mains end in terminal
box with explosion protection.
2. Connect PE conductor duct system to terminal on
outside of fan.
Direction of rotation and air flow
1. Check direction of rotation and air flow  Arrows
on fan housing.
UK
1.4 Nm
2.5 Nm
2.3 Nm
1.5 Nm
7 ... 13 mm
7