Donaldson DLM V Series User manual

Dalamatic Insertable Dust Collectors
Series DLM V
IOM AK0303101(0)
Installation, Operation and
Maintenance Manual

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Installation, Operation and Maintenance Manual
Dalamatic Insertable Dust Collectors – Series DLM V
PLEASE READ THIS MANUAL CAREFULLY BEFORE INSTALLATION
THIS MANUAL SHOULD BE READ IN CONJUNCTION WITH THE RESPECTIVE
CONTROLLER MANUAL SUPPLIED WITH THE DUST COLLECTOR:
EVC CONTROLLER – PUBLICATION 2698
IPC OR IPC (∆Ρ) CONTROLLER – PUBLICATION 2699
PT CONTROLLER – PUBLICATION 2697
Delta P-C01 Controller-Delta P-C01 IOM AK0303001
PRODUCT RELIABILITY, WARRANTY AND
SAFE OPERATION MAY BE COMPROMISED BY NOT FOLLOWING
THE GUIDANCE GIVEN IN THESE DOCUMENTS
IMPORTANT
Indicates information on the efficient operation of the collector.
Indicates important information directed towards preventing damage.
Indicates an important warning, designed to prevent injury or extensive damage.
EXPLANATION OF SYMBOLS USED

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Dalamatic Insertable Dust Collectors – Series DLM V
Installation, Operation and Maintenance Manual
IMPORTANT
These details correspond to the serial nameplate
located on the left-hand side panel of the equipment
to which this Manual refers
Improper operation of a dust control system may contribute to conditions
in the work area or facility that could result in severe personal injury and
product or property damage. Check that all collection equipment is
properly selected, sized and operated for the intended use.

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Installation, Operation and Maintenance Manual
Dalamatic Insertable Dust Collectors – Series DLM V
CONTENTS
General safety requirements ..................................................................................6
Installation ..............................................................................................................10
Mounting over aperture .................................................................................11
Flat bar stiffening ...........................................................................................13
Fitting Dalamatic filter elements.....................................................................13
Final assembly ...............................................................................................13
Compressed air requirements.......................................................................14
Controller .......................................................................................................15
Overload protection .......................................................................................16
Antistatic earthing ..........................................................................................16
Interlocks........................................................................................................17
Ex controls...................................................................................................18
Explosion relief...............................................................................................18
Installation check list......................................................................................18
Commissioning ......................................................................................................19
Commissioning check list..............................................................................19
Start-up sequence .........................................................................................20
Shut-down sequence.....................................................................................20
Operation ................................................................................................................21
Principle of operation.....................................................................................21

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Dalamatic Insertable Dust Collectors – Series DLM V
Installation, Operation and Maintenance Manual
CONTENTS
Maintenance ...........................................................................................................22
Routine inspection .........................................................................................22
Servicing schedule.........................................................................................23
Fan assembly removal/replacement .............................................................26
Specification ..........................................................................................................30
Description and range ...................................................................................30
Construction...................................................................................................30
Spare Parts .............................................................................................................37
Declaration of Conformity ....................................................................................43
Table 1 Torque values for bolts with ISO metric thread ....................................27
Table 2 Fault location ........................................................................................29
Table 3 Dalamatic Insertable dust collector range ...........................................31
Table 4 Weighted sound pressure levels..........................................................31
Table 5 Compressed air manifold design details .............................................34
Table 6 Compressed air requirements..............................................................35
Table 7 Design limits .........................................................................................35
Table 8 Standard fan motor supply voltage details ..........................................36

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Installation, Operation and Maintenance Manual
Dalamatic Insertable Dust Collectors – Series DLM V
GENERAL SAFETY REQUIREMENTS
The collector should be stored as supplied. Only remove packaging to
install.
For the purposes of storage:
•Collector with specification for inside use = IP50.
•Collector with specification for outside use = IP54.
The dust collector should be used only when it is in a technically
acceptable condition. Regular maintenance, as set out in this
manual, is required to minimise technical failure. Third party supplied
components (for example motors) should be maintained according to
the manufacturer's instructions.
You should ensure any persons carrying out work on the supplied
equipment follow any relevant recognised standards/codes, have
received adequate training and are competent to do so. Areas requiring
a competent person include:
•Maintenance on any component identified as a potential ignition
source.
•Lifting and erection.
•Electrical installation, inspection and maintenance work.
•Pneumatic installation, inspection and maintenance work.
•Any access to internal classified potentially explosive atmospheres
where there may be a risk due to explosion.
During assembly/installation or dismantling of equipment, potential
ignition sources may occur that were not considered in the risk
assessment of the unit in operation (for example, grinding, welding
sparks, etc.)
You should use the dust collector in full accordance with the conditions
set out in the Order Acknowledgment and relevant Scope of Delivery.
Failure to do so may compromise product reliability, warranty and safety.
The Scope of Delivery is an integral part of the manual.
Other items of equipment, not supplied under the Scope of Delivery from
Donaldson, should be installed, operated and maintained according to
the documentation supplied with the respective equipment.
Any modification carried out on the 'as supplied' equipment may reduce
reliability and safety, and will nullify warranty; such actions fall outside
the responsibility of the original supplier.
Where necessary for safety, the dust collector is fitted with fixed guards.
Removal of these guards and any subsequent work should only be
carried out after adequate precaution is taken to ensure it is safe to do
so. All guards should be refitted before re-energising.
The access door requires tools to open. To avoid danger from rotating
fan impellor, ensure fan is isolated and allow sufficient time for fan to
become stationary.

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Dalamatic Insertable Dust Collectors – Series DLM V
Installation, Operation and Maintenance Manual
GENERAL SAFETY REQUIREMENTS
Compressed air is recommended for collectors that operate using
reverse jet cleaning. Alternative gases should be assessed before use
to ensure that explosive atmospheres are not introduced during media
cleaning.
Where the equipment supplied is suitable for working within a potentially
explosive atmosphere (as defined by Directive 94/9/EC) it will be
according to the categories and conditions marked on the collector
serial nameplate. You should ensure the equipment supplied by others
is also suitable. If no marking is given on the serial nameplate then
the supplied equipment is not suitable for use in potentially explosive
atmospheres.
Care should be taken to ensure that any potentially explosive atmosphere
is not present when performing operations that increase the risk of
ignition (opening of controller for adjustment or electrical repair for
example). Ensure the installation is always returned to its original state.
To reduce the risk of ignition when handling explosive or flammable
materials, it is important that the accumulation of flammable deposits
are prevented/removed, e.g. from within ducting etc.
If the collector is handling a potentially explosive dust or is placed in a
potentially explosive atmosphere, then all motors should be connected
to thermal protection devices to prevent them exceeding their maximum
surface temperature. All electrical equipment should comply with a
category according to all related National and Local Codes.
Where the dust being processed can ignite due to exothermic reaction,
including self ignition, the installation MUST be fitted with a suitable
explosion protection method (venting for example). The risk of ignition
can be minimised by avoiding the accumulation of dust layers with
regular cleaning.
Precautions, as set out in the Scope of Delivery, are used to minimise
the risk of ignition of any dust clouds contained within the dust collector.
The possibility of other ignition sources being introduced into the
collector during periods where any dust cloud may be present should
be minimised. Particular care should be taken to avoid introducing
glowing particles via the inlet ducting.
You should ensure that explosions are not allowed to propagate into the
dust collector (using suitable isolation devices) since pressures may be
generated leading to unsafe equipment rupture.
Where applicable, equipment connected to the dust collector (for
example, a cyclone) should be protected, using suitable isolation
devices, against the transfer of flame and pressure if, in the event of an
explosion initiating inside the dust collector, the connected equipment
is not capable of safely withstanding these effects.

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Installation, Operation and Maintenance Manual
Dalamatic Insertable Dust Collectors – Series DLM V
GENERAL SAFETY REQUIREMENTS
It may be necessary to provide a facility to shut down the equipment in
the event of an explosion.
Part of the risk assessment on possible ignition sources for dust and
gas mixtures with very low MIE, has considered the electrostatic risk
from cone discharges. Here the basis of safety is based on using a
conductive bin, dusts with a median particle size of less than 400µm
and advising frequent emptying.
You may wish to consider the use of a sprinkler system when handling
explosive or flammable materials.
None of the fan assemblies can be considered to be a fully sealed
design, indeed most are arranged with either an open inlet or an open
outlet. For this reason, the internal and external atmospheres can be
considered the same in terms of any potentially hazardous classification.
Standard fan assemblies should not exceed 3000 rpm (50 Hz supply)
on systems fitted with an inverter drive.
The filtration media is suitable for filtering particulate only (and not gas).
Some applications are prone to risk of fire. This risk can be reduced by
regular pulse cleaning.
•Any extinguishing technique and material used must be suitable for
the flammable nature of the dust.
•A water sprinkler system can be fitted as a special option.
Materials handled by the dust collector may be hazardous (e.g. toxic).
Conduct a Risk Assessment to ensure correct technique is employed.
The dust collector should be cleaned and put into a safe condition prior
to decommissioning. All equipment decommissioning/removal is to be
executed in a manner consistent with applicable codes, regulations and
sound engineering practice.

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Dalamatic Insertable Dust Collectors – Series DLM V
Installation, Operation and Maintenance Manual
Compressed
air inlet
Cleaned air outlet
(when acoustic
diffuser fitted)
Header cover
Exit header
Insert
Filter bagFilter element
Acoustic diffuser
(when fitted)
Jet tube
Lifting bracket
Collector body
Mounting
flange
Manometer
connection
(optional)
Earthing post
(antistatic version)
Terminal box
Fan impellor
Fan motor
Controller
Diaphragm valves
Rubber connecting
hose
Compressed air
distribution manifold
Fan discharge
Figure 1 Dalamatic Insertable dust collector
Model DLM V30/15 FAD illustrated

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Installation, Operation and Maintenance Manual
Dalamatic Insertable Dust Collectors – Series DLM V
INSTALLATION
Where equipment is installed in a Potentially Explosive Atmosphere,
care should be taken not to locate or use the collector where external
ignition sources can be introduced, for example stray electric currents,
lightening, electromagnetic waves, ionising radiation, ultrasonic
waves.
When handling explosive or flammable materials and the risk of a fire is
high, then precautions such as fitting a sprinkler system and not locating
the collector in a zone 21/1 area should be considered.
When handling explosive or flammable materials the collector should be
located so as to avoid external heat sources, e.g. from nearby processes
or extreme direct sunlight.
The collector is not designed to support site-installed ducts,
interconnecting piping or electrical services. All ducts, piping or
electrical services must be adequately supported.
All external equipment connected to the outlet (e.g. ducting) should be
correctly sealed. This can be achieved by applying a continuous 5 mm
bead of sealing compound to the mounting surface, along each side
of the hole pattern. For non-Donaldson equipment please also check
supplier's IOM manual for any specific requirements.
Details of standard fan motor supply voltage are given in Table 8 (refer
to 'Specification' section).
Figure 2 Lifting arrangement
d90q
Two-point lift for
horizontal insertion,
‘manifold down’
Two-point lift for
horizontal insertion,
‘manifold up’
Four-point lift for
vertical insertion
Adjust lengths of chain (or
rope) to ensure collector body
remains level when lifted.
(Note protective packing)
Horizontally inserted collectors are normally fitted
‘manifold up’ for ease of access and maintenance,
but where headroom is restricted they may be placed
‘manifold down’. The collector itself will operate with
equal efficiency in either position.
Under no circumstances
should the collector be
lifted as illustrated above
WARNING!
d90q
d90q

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Dalamatic Insertable Dust Collectors – Series DLM V
Installation, Operation and Maintenance Manual
Dalamatic Insertable dust collectors are delivered partly assembled. Final
assembly of each collector is as follows:
Mounting over aperture
1 Check that the aperture and fixing holes are correct
in size and position to suit the mounting-flanges of
the Dalamatic collector (if required, aperture and
mounting flange details are provided in Publication
364).
2 Apply a continuous 5 mm bead of sealing
compound all round aperture, along each side of
the fixing holes, as shown.
3 Arrange lifting tackle to suit mode of insertion (fig. 2).
On V60/15 and V50/12 collectors, for 4 point lift – vertical insertion.
On exit header, weather cowl and fan versions (with or without
acoustic diffuser) lift by means of the 4 eyebolts fitted to the exit
header top.
Chains or slings should be used with an adequate SWL (Safe Working Load).
(Refer to lifting label located adjacent to lifting bracket for weight of equipment
supplied by Donaldson).
Chains must be long enough to ensure that the included angle between
diagonal chains is not greater than 90q.
4 Lift and position the collector body until the mounting-flange is seated in
position over the aperture. Match up fixing-holes, install bolts, washers and
nuts and tighten down all round to form an airtight seal.
For Insertable dust collectors mounted on a housing it is
recommended that the housing be lifted into position before
installation of the collector body. Most housings are fitted with
brackets for lifting, however if these are not available a suitable
sling arrangement should be used. If there is a requirement to lift
both the collector body and housing together, the collector body
brackets can be used for vertical insertion, provided the weight
of the housing is less than 600kg (refer to lifting label for section
weight). For horizontal insertion the use of the collector body lifting
brackets alone is not permitted, it is then necessary to also use
the housing lifting brackets or a suitable sling arrangement to give
additional support.
Fixing bolts etc. are not supplied by Donaldson.
INSTALLATION

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Installation, Operation and Maintenance Manual
Dalamatic Insertable Dust Collectors – Series DLM V
INSTALLATION
Figure 4 Removing the first jet tube
Figure 5 Fitting filter bag on insert frame
Figure 6 Placing filter elements
into seal frame slots
Figure 7 Filter bag seal
level with edge of flange Figure 8 Tightening insert clamp
Figure 3 Part view showing typical fixing position of
flat bar stiffeners on explosion stiffened collectors
Holes for bolt fixings
Flat bar stiffener
Base side panel

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Dalamatic Insertable Dust Collectors – Series DLM V
Installation, Operation and Maintenance Manual
INSTALLATION
Flat bar stiffening
When collectors are explosion stiffened, a set of flat bar stiffeners are supplied
with the collector. The flat bar stiffeners should be fitted when the collector is
being installed, at the site joint where the collector is fitted to the mounting flange
(see fig 3).
Fitting Dalamatic filter elements
5Remove header cover if fitted (see fig. 1).
6 Unbolt and remove jet tubes (fig. 4).
7 Fit filter bags on insert frames, ensuring that sealing collar of filter bag butts
up tight to flange of insert frame (fig. 5).
8 Place filter elements into seal frame slots as shown in fig. 6.
9 Ensure that filter bag seal is level with edge of flange on insert frame to obtain
effective seal (see arrow fig. 7).
10 Fit clamps and tighten nuts using a ratchet and long-reach socket as shown
in fig. 8. If filter elements are horizontally mounted, tighten-up bottom clamp
first.
Do not over-tighten. (Recommended maximum torque 20 ft-lbs f
or 27 Nm).
Final assembly
11 Replace jet tubes (fig. 9). As each is bolted down, ensure that its open end
is pressed firmly into its locator and that the jet tube orifices are pointing
towards the inserts.
12 Open plastic bag containing fixing bolts, tubing and controller mounting
brackets.For IPC or IPC(∆P) controller only.
13 Fix brackets to controller using 4 x M4 fixing bolts and nuts (fig. 10).
For IPC or IPC(∆P) controller only.
Figure 9 Replacing the jet tubes Figure 10 Fixing brackets to controller
IPC controller illustrated

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Installation, Operation and Maintenance Manual
Dalamatic Insertable Dust Collectors – Series DLM V
INSTALLATION
14 Attach controller on preferred side of collector body using 6 x M8 fixing bolts
and nuts.
15 Note from fig. 11 the manner in which the solenoid pilot valves projecting
from the controller are to be connected by tubes to the diaphragm valves
under the compressed air manifold. Cut tubing to suitable lengths.
16 Push-fit the tubing to the diaphragm valves in the manner shown in
fig. 11.
17 Pass the tubes through the holes in the side of the collector body and push-
fit to the corresponding solenoid pilot valves projecting from the controller
(valves on the controller are numbered in sequence from the left, see
fig. 11 and fig. 12 for typical arrangement).
18 Ensure each tube is firmly connected to the valves.
19 Replace header cover if applicable (fig. 1).
Compressed air requirements
Dalamatic Insertable dust collectors require an independent supply of clean,
dry, oil-free compressed air. Details of atmospheric pressure and quantity are
given in Table 6 (refer to ‘Specification’ section). A design label is also attached
to each manifold. Where an existing factory mains system is to be used it may
be necessary to install an additional moisture separator in the supply line to the
collector. If a compressor is being installed to supply the Dalamatic, then the
following conditions should be observed as far as possible:
Type of compressor
Use a compressor of ample capacity – an overloaded compressor tends to
produce excessively contaminated, moisture-laden air.
Location of air intake
Avoid locating the air intake in an excessively polluted area and install an adequate
air intake filter. The compressor air intake should be sited, if possible, on the
Figure 12 Typical connection to controller
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
Figure 11 Compressed air connections
5 4 3 2 1
1
2
3
4
5
IPC Controller illustrated

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Dalamatic Insertable Dust Collectors – Series DLM V
Installation, Operation and Maintenance Manual
INSTALLATION
north side of the building – fresh air drawn from the north side is usually cooler
and denser, and therefore has a lower moisture content. (South of the equator
the reverse will apply).
Layout and installation of air lines
The pipework between compressor and dust collector should be long enough
to act as a cooling device for the compressed air. A typical requirement for the
smaller installation would be 10 m (30ft) of 12 mm (½" NB) piping. For further
details see Table 6. The piping should be installed to provide a fall in the direction
of air flow to assist in the drainage of accumulated moisture. A moisture separator
should be provided at the lowest point of the installation.
Pressure relief
The manifold has a maximum operating pressure of 6.2bar (see Table 5in
‘Specifications’ section). It is a requirement that adequate precaution is taken
to avoid exceeding this pressure. Where a relief valve is supplied by Donaldson
this device has a relief rating of 25 dm³/s at 7.1 bar. Extra system relief will be
required if the connected supply can exceed this.
Controller
It is a requirement of the Supply of Machinery (Safety) Regulations 1992
to provide adequate isolation and emergency stop facilities. Due to the
varied nature of site installations this cannot be provided by Donaldson
but instead is the responsibility of the customer.
Always isolate power before opening the controller.
Each DLMV dust control collector is supplied with an EVC Controller, an IPC
Controller , an IPC (∆Ρ) Controller or a Delta P-C01 Controller to operate the
reverse jet cleaning system.
DLM V3/7 and V5/12: 2-way EVC, IPC , IPC (∆Ρ) Controller ,Delta P-C01
Controller or Control Box Assembly(Timer with box)
DLM V4/7, V6/10, V7.5/12, V8/7, V9/15, V12/10, V15/12
and V18/15: 3-way EVC, IPC or IPC (∆Ρ) Controller, Delta P-C01
Controller or Control Box Assembly(Timer with box)
DLM V7/7, V10/10, V13/12, V14/7, V15/15
and V20/10 (5-valve version): 5-way EVC, IPC or IPC (∆Ρ) Controller , Delta P-C01
Controller or Control Box Assembly(Timer with box)
DLM V20/10 (10-valve version), V21/7, V25/12, V30/10, V30/15, V38/12,
V45/15, V50/12 and V60/15: 10-way IPC or IPC (∆Ρ) Controller , Delta P-C01
Controller or Control Box Assembly(Timer with box)
For EVC Controller connections and set-up, refer to Publication 2698.
For IPC or IPC (∆Ρ) Controller connections and set-up, refer to Publication
2699.
For Delta P-C01 Controller connections and set-up, refer to IOM
AK0303001 and electrical drawings provided by Donaldson

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Installation, Operation and Maintenance Manual
Dalamatic Insertable Dust Collectors – Series DLM V
INSTALLATION
(∆Ρ connections)
On dust collectors fitted with an IPC (∆Ρ) Controlleror Delta P-C01 Controller,
the cleanside and dirtyside tapping points require connecting using the ∆Ρ
connection kit supplied. The cleanside tapping point should be connected
to the manometer connection identified in figure 1. The dirtyside tapping point
should be connected as shown in figure 13.
Overload protection
All feeder circuits should be adequately protected with suitably-rated fuses and
contactors with integral overload protection.
Antistatic earthing
It is particularly important on collectors having
antistatic features and/or explosion stiffening, that the
earthing post (located adjacent to the symbol, shown
opposite) is properly connected to earth, using the
brass screw provided, to prevent any static build-up
(refer also to fig. 1).
Figure 13 Cleanside and dirtyside tapping point connections
Cleanside connection
(On dust collector casing)
Upward loop to help
prevent dust ingress
Dirtyside connection
(Customer to make provision for
fitment of dirtyside tapping point to
equipment – typically on the silo or
mounting flange)
To cleanside
connection on IPC
(∆Ρ) Controller or a Delta
P-C01 Controller
To dirtyside
connection on IPC
(∆Ρ
In-line filter
(if have)
A C
B
D
A = 150 mm pitch centres
B = 135 mm pitch centres
C = 150 mm cutout
D= 110 mm cutout
M8 bolt, nut
and washers ) Controller or
a Delta P-C01
Controller

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Dalamatic Insertable Dust Collectors – Series DLM V
Installation, Operation and Maintenance Manual
Figure 14 Schematic diagram showing typical interlock system for a Dalamatic dust collector installation
* For fans powered by 11kW motors or above collectors are connected for star delta starting as standard
L1
L2
L3
N
Start
N/O aux.
contact
O/L
Stop
Rotary valve(s) Conveyor Compressor Controller Fan*
INSTALLATION
Interlocks
Discharge equipment such as belt feeders should be separately controlled but
interlocked with the dust collector controller (see fig. 14).
The design of the electrical circuitry controlling equipment associated with the
Dalamatic dust collector should be such that breakdown of any one of the
associated pieces of equipment does not cause a complete blockage of the
collector. For example, should the motor of a belt feeder cease to function, the
collector housing will gradually fill with dust until completely choked. Failure of
the compressor could also cause a similar blockage.
It is therefore important that the starters of all ancillary equipment be interlocked
to ensure:
1 Correct starting sequence;
2 Operation of a warning system, or alternatively stoppage of the entire
installation in the event of a failure of any of the auxiliary motors;
3 Correct stopping sequence.
Such interlocks are illustrated in figure 14 which also allows for the compressor
etc. to operate without airflow through the collector, to facilitate clearance of the
filter elements in the event of blockage due to failure of non-electrical equipment.

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Installation, Operation and Maintenance Manual
Dalamatic Insertable Dust Collectors – Series DLM V
Ex controls
When the dust collector is to be installed in a hazardous area where there is any
risk of fire or explosion, the collector will be marked for the area(s) it can be safely
used within (refer to collector serial nameplate). The collector may be fitted with
either of the following control systems:
•Exd solenoids and remote controller
When this option is fitted,the dust collectorhas its solenoid valves in an Exd
IIb T6 enclosure mounted on to the collector body. A controller, is supplied
loose. This must be installed in a safe area and connected to the solenoid
valves on the dust collector using suitable cabling (not supplied).
It is recommended that cable with a core size of 2.5 mm² is used.
The maximum length of cabling that can be used is 100 m.
Instructions for setting up the controller are the same as those for the standard
controller.
•PT Controller
The PT Controller is a pneumatically operated device which operates the
diaphragm valves in sequence, therefore the need for an electrical supply
is eliminated.
The controller is supplied complete with air regulator and is normally bracket-
mounted on to the side plate of the dust collector body.
For PT Controller connections and set-up, refer to Publication 2697.
Explosion relief
Explosion panels, if fitted to upstand housings, must be relieved
and vented to a safe area in accordance with Factory Inspectorate
recommendations. The vent area is only suitable for the upstand housing
volume and not the equipment being served.
Insertable dust collectors suitably stiffened for explosion pressures
should be used.
Installation check list
Ensure the Dalamatic collector is securely bolted over the aperture.
Ensure compressed air supply is installed correctly and free from leaks.
Ensure electrical supply is installed correctly and complies to local
legislation.
INSTALLATION

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Dalamatic Insertable Dust Collectors – Series DLM V
Installation, Operation and Maintenance Manual
COMMISSIONING
It is a requirement of the Supply of Machinery (Safety) Regulations 1992
to provide adequate isolation and emergency stop facilities. Due to the
varied nature of site installations this cannot be provided by Donaldson
but instead is the responsibility of the customer.
When making your preliminary checks, or during the start-up sequence,
particularly note that on collectors fitted with an explosion panel the
cleaning system should not be operated on its own for longer than
necessary as the positive pressure produced could weaken the Membrex
membrane.
Commissioning check list
Ensure the Dalamatic dust collector body is securely bolted over the
aperture.
Ensure that all ducting is complete and all detachable panels are in
position.
Ensure header cover seal is intact on the collector, then secure the cover.
Ensure collectors fitted with antistatic filter elements and/or explosion relief
are suitably earthed.
Where fitted, ensure explosion relief panels are venting to a safe area.
Ensure controller is connected to the correct voltage and that the pulse
interval and duration settings are correct. For 24V DC ensure polarity is
correct. It is essential that the controller is earthed for both AC and DC
connections.
Ensure electric power is available.
Ensure the compressed air manifold has sufficient protection for over-
pressure.
Start the compressor and check that the air supply is maintained at the
recommended pressure.
Switch on the controller and check that all valves operate in sequence by
‘feeling’ pulses in rubber hoses (look and listen for exhaust pulses). As each
valve operates, the air pressure reading should drop to approximately 50%
of the initial setting and then return to the initial value.
Check fan motor for correct rotation and that the full load current is not
exceeded. (Refer to the fan rotation label located above the fan inlet eye in
the exit header section of the dust collector).
If applicable, start up the main fan and equipment being served.
Verify operation of the interlocks and audible warning system if fitted.
If any of the above check boxes are not ticked, then the reasons why should be
investigated. (Refer to fault location table in ‘Maintenance’ section).

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Installation, Operation and Maintenance Manual
Dalamatic Insertable Dust Collectors – Series DLM V
Start-up sequence
Having completed all the necessary checks, the equipment may be put into
operation. A typical installation, as shown in figure 14, should be started up as
follows:
1 Start up compressed air supply.
2 Set the equipment being served, if applicable, in motion.
3 Switch on controller.
4 Start main fan (if fitted).
Shut-down sequence
At the end of any period of operation it is most important that all residual
deposits are cleared from the filter elements, collector body and
equipment being served. To achieve this, equipment should be shut
down in the following order:
1 Stop main fan only, leaving controller and compressed air supply switched
on to allow filter elements to be cleaned ‘off-line’.
To enable off-line cleaning, refer to controller manual.
This procedure is not recommended where explosion panels are
fitted, as damage could result to the Membrex membrane. In such
cases consult with Donaldson.
2 After 10-15 minutes, switch off controller and compressor but leave discharge
equipment running to ensure that it is emptied.
3 After a further 5 minutes, switch off the discharge equipment if applicable.
Adherence to the above procedure will ensure that a Dalamatic dust collector
installation is maintained at optimum efficiency.
COMMISSIONING