Installation - Maico DAQ Ex Series Original Installation And Operating Instructions

EN
Once all causes of faults have been eliminated,
the connected motor must not start up again
automatically. It may only be switched on again
manually (restart interlock).
7 Obligations of the installer and
operating company
Permissible ambient and airstream temperature
→ rating plate.
The unit must be regularly inspected and main-
tained by a qualified person, as described in
these instructions.
Cleaning and maintenance intervals should
be determined by the operating company in
accordance with EN 60079-17 – frequency de-
pends on ambient conditions and anticipated
limitations. Shorten the maintenance inter-
vals in the event of dust or a corrosive atmo-
sphere.
Additional safety regulations should be ob-
served during installation and operation, e.g. in
accordance with the following directives and reg-
ulations:
• EG Directive 1999/92/EC, ATEX 137: imple-
mented in Germany with the Ordinance on In-
dustrial Safety and Health.
• EN 60079-14: Design, selection and erection
of electrical installations.
• National accident prevention requirements.
8 Safety instructions for users
DANGER Explosion hazard due to spark
formation if foreign bodies are inserted into
the unit.
Do not insert any objects in the unit.
WARNING Risk of injury due to suction
from the unit and rotating impeller.
Hair, clothing, jewellery etc. may be pulled into
the unit if you get too close to it.
Keep sufficient distance during operation.
Do not insert any objects into the unit.
DANGER Risks for children and people
with reduced physical, sensory or mental
capabilities or a lack of knowledge.
Unit may only be installed, commissioned,
cleaned and maintained by persons who can
safely recognise and avoid the risks associated
with this work.
CAUTION Hot motor surfaces may result
in skin burns if touched.
Do not touch hot motor surfaces. Always wait
until the motor has cooled down.
9 Switching unit on / off
The unit is switched on or off with an optional
switch. The unit is designed for continuous oper-
ation (S1). Frequently switching on/off may result
in improper heating and should be avoided.
10 Reversing mode
Unit not suitable for reversing mode.
Special versions with reversed air flow direction
are available for wall fans on request. Due to
their design, duct fans can be installed in the op-
posite direction.
11 Action to take in the event of
a fault
Check whether the PTC thermistor triggering
system has responded. In the event of opera-
tional disturbances, disconnect the unit from the
mains at all poles. Before switching on again,
have qualified staff determine the cause of the
fault and remedy it. This procedure is particularly
recommended after the PTC thermistor trigger-
ing system has been tripped.
10
12 Unit installation
12.1 Safety instructions
Do not use the unit for "purposes other than
those for which it was intended" under any cir-
cumstances.
The installation may only be carried out by
a qualified person, as described in these in-
structions. → Qualification of installation, clean-
ing and maintenance staff [} 9]
DANGER Danger of electric shock.
Whenever working on the unit, release the sup-
ply current circuits, secure to prevent them from
switching on again and ensure the unit is de-en-
ergised.
Attach a clearly visible warning sign.
Ensure that there is no explosive atmosphere.
DANGER Risk of explosion if the cables
are incorrectly inserted into the terminal box.
Degree of protection is not guaranteed.
Ensure degree of protection by correctly insert-
ing the cables into the terminal box.
Cable screw connections must comply with
standard EN 60079-1 (Ex "d").
DANGER Explosion hazard when operat-
ing with unit not fully mounted and if air inlet
or outlet is not correctly protected.
The fan may only be operated if the unit is fully
mounted and with the protective devices fitted
(in accordance with EN 13857) for the air chan-
nel.
Ensure that foreign bodies cannot be sucked
into the unit and ducts.
DANGER Explosion hazard due to incor-
rect adjustment.
The rotating parts of the unit were adjusted in
the manufacturer's factory.
The unit must not therefore be taken apart. The
temporary removal of the terminal box cover
during unit installation is the only exception to
this restriction.
DANGER Risk of explosion/risk of injury
due to incorrectly mounted or falling unit.
Only mount on walls/ducts with sufficient load-
bearing capacity and sufficiently dimensioned
mounting material.
Mounting material is to be provided by the cus-
tomer.
During installation, do not allow people to stand
under the installation location.
13 Transport, storage
DANGER Danger from unit falling if
transporting with unauthorised transport
equipment.
Use lifting and transport equipment suitable and
approved for the unit and transport weight.
Ensure that persons do not step under suspen-
ded loads.
Note weight and centre of gravity (centre).
Observe the maximum permitted loading capa-
city for lifting gear and transport equipment. For
total weight, see rating plate.
During transport do not place load on sensitive
components, such as impeller or terminal box.
Fit transport equipment correctly.
Lift heavy equipment only with several people.
Use suitable lifting device/lifting equipment, es-
pecially for ceiling installation.
Observe applicable safety and accident preven-
tion regulations.
CAUTION Risk of cuts from metal hous-
ing plates with sharp edges.
Wear personal protective equipment (cut-resist-
ant gloves) for installation.
• Only ship unit in original packaging.
• Store the unit in a dry place (+5 to +40 °C with
a relative humidity below 50%).
14 Technical data
→ Rating plate on the unit.
Motor ignition protec- Ex d
tion type
Air volume → Rating plate
Vibration values Category: BV-3
(ISO 14694)
Quality grade: G 6.3
Weight → Rating plate
15 Ambient/operating conditions
• Permissible ambient and airstream temperat-
ure → rating plate.
• Classification of the ignition temperature of
gases in classes for gas atmospheres. Tem-
perature class T... → Rating plate.
Temperature class T1
Ignition temperature of 450
the gases [° C]

16 Installation

During installation, note the applicable installa-
tion requirements → especially EU Directive
1999/92/EC, EN 60079-14 and VDE 0100 (in
Germany).
16.1 Installation site
Only install the unit in locations suitable in terms
of load-bearing capacity, condition, ventilation,
protection against temperature and fire → plan-
ning documents.
When selecting the installation site, note the
following conditions
• The installation site must be level and capable
of supporting the static and dynamic load as
well as the unit's natural frequency in order to
avoid deformation and damage to the unit. Re-
verberations caused by the unit's natural fre-
quency must be avoided. Follow the planning
documents. If necessary, modify the unit in-
stallation. For high-speed units, plan the in-
stallation on a reinforced base.
• Note that the roof's permissible load-bearing
capacity must be a min. of 200 kg/m² or for
heavy units, a min. of 300 kg/m².
• If installing on steel beams, it is absolutely es-
sential that these structures have a natural fre-
quency > 50% of the fan speed. To prevent vi-
brations from spreading via the foundation, we
recommend using vibration-damping support
plates. These are to be mounted at the points
intended for them. The housing and internal
structure must not be deformed.
• Note the permissible distances from building
components (for air ducts on the inlet and out-
let side):
1.5x impeller diameter as distance from wall
for applications without air ducts.
2.5x impeller diameter as distance for first
curve of the air outlet.
Internal minimum curvature radius of curves
should equal the duct diameter.
• The unit must not blow out air into areas
where there are people or animals so that
neither injury nor damage to persons can res-
ult from either hot, expelled air or dirt and other
small particles flying around.
T2 T3 T4
300 200 135