YFAA21A-Y010E

Operation Manual for

Dustrésa
the Compact Dust Collector

CFA-110
CFA-H215C
CFA-H215T
CFA-H220
CFA-H240
 Introduction
Thank you for choosing our Dustrésa dust collector in the CFA series from among so many similar products
on the market.
Showa Denki, as a dedicated manufacturer of blowers and dust collectors, has supplied innovative products
developed by making the best use of its flow and rotary machine expertise. Compact, yet featuring high
performance and low energy consumption, your Dustrésa will serve you for long safe and sound as long as
you follow the instructions in this manual.
It is recommended that you keep the manual on hand for quick reference.

This manual contains all necessary information from installation to operation about the following varieties of
Dustrésa:

CFA-110 100 V, 50 & 60 Hz commonly used

CFA-H215C 100 V, 50 or 60 Hz exclusively used
CFA-H215T 200 V, 50 or 60 Hz exclusively used
CFA-H220 200 V, 50 or 60 Hz exclusively used
CFA-H240 200 V, 50 or 60 Hz exclusively used

Symbols used herein

The symbols and headwords found in this manual respectively have the following meaning:

Warning If failed to observe the relevant instructions, it could cause death

or serious injury.

Caution If failed to observe the relevant instructions, it could cause injury

or property damage.

indicates what must not be done.

indicates what requires the use of good care.

indicates what must be done.

 Contents Page

Chapter 1 Cautions for safety -1-

Chapter 2 Outline of the dust collector -3-

Configuration -3-
Components -3-

Chapter 3 Installation -5-

Installation -6-
Electrical wiring -6-
Hood and connection of the duct -7-
Trial operation -7-

Chapter 4 Operation -7-

Routine operation -7-
How shake off the dust -8-
Caution -8-

Chapter 5 Maintenance -9-

What and when to inspect -9-
Replacing the filter cloth - 10 -
Adjusting tension of the shaking rope - 11 -
Replacement filter cloth sizes - 12 -
Troubleshooting - 13 -
Specifications - 14 -
Outside dimensions - 14 -

Chapter 6 Warranty - 16 -
 Chapter 1 Cautions for safety

Warning
Any Dustrésa must not suck the following things:

 A lit cigarette or match, hot dust

 Sander or grinder sparks

The filter cloth of the dust collector is flammable. The filter cloth may be ignited by a spark,
causing a fire.
If a fire occurs in the dust collector, immediately turn the switch off and supply fire extinguishing
agents, which are suitable for the dust particles to be suctioned, to the intake port. After that,
block both the intake port and exhaust port. Do not open the front door until the temperature
inside the dust collector lowers.

 Flammable gases from petrol, thinner, etc.

Sparks from the incorporated electric components, static and contact of metals can cause an
explosion.

Do not operate the Dustrésa with its maintenance door opened because it could be closed by
negative pressure inside catching your fingers and/or the motor overloaded.

Do not ride on the Dustrésa because it could be deformed or you could fall.

This dust collector cannot suction metal powder particles such as aluminum, magnesium or
titanium dust; grain powder particles such as flour or starch dust; flammable powder dust particles
such as wood flour, resin powder particles or carbon dust; or flammable gases. A powder dusts
explosion due to static electricity may occur inside the dust collector. When handling these powder
dust particles, be sure to use a dust explosion proof model.

The design service life of this product is eight years except excluding its consumable parts. When
the product is used for an extended period exceeding the design service life, the risk of failure or
malfunction increases.

-1-
 Caution
The Dustrésa should not suck the following things which can cause it a failure:

 Hot gas
The gas heated to 40°C or more would deteriorate the insulation of electric components inside
the dust collector.

 Water, oil, adhesives and adhesive dust

They would adhere to the filter cloth causing it blinding.

 Work, tools and other solid objects than dust

They could damage the ducts and filter cloth.

 Particulates (5 µ or smaller) of carbon and other materials

Use a high-performance filter cloth as the standard type can allow leaks.

 Lightweight dust including feather, cotton dust, polystyrene foam dust

They would adhere to the inside of the dust collector.

 Highly abrasive powder dust particles such as glass powder particles or polishing agents
Holes may be opened in the filter cloth by abrasion, causing powder dust particles to leak.
Furthermore, holes may also be opened in the duct or main unit.

Do not apply high pressure on the Dustrésa with a pressurizer.

Do not use an inverter or other devices to increase the speed of operation.

It may cause damage to the blower.

For models with a built-in motor protection device (refer to applicable model), if the motor stops
due to overheating caused by an overload, turn of the power immediately. The motor is designed to
automatically restart when the motor cools down, which is dangerous. Make sure the cause of the
motor overload solved, confirm the motor has cooled down and switch the power on again to start it
up.
Applicable model: CFA-110 (Custom-made products may vary depending on the specifications.)

Handle powder dust particles collected by the dust collector correctly according to the national or
local governmental regulations in the same manner as disposal parts such as old filter cloths to
which powder dust particles are adhered, except when reusing them.
In addition, when disposing of a dust collector that is no longer used, remove powder dust particles
adhered to the main unit and recycle the unit as metal waste. Handle other parts to which powder
dust particles are adhered according to the relevant laws.

This dust collector operates based on the assumption that the particle diameter of the target dust is
5 µm or more with the standard filter cloth and 1 µm or more with the optional high performance
filter cloth. The dust amount is 1 g or less for an air volume of 1 m3/min. If the dust collector
suctions powder dust particles exceeding this range, dust leakage, increase in filter cloth pressure
loss, or clogging may occur.

-2-
  Chapter 2 Outline of the dust collector
This dust collector is use for separate and collect the airborne dust during processing or powder handling.
It is not designed to feed a large amount of powder in a short period. Dust removal also cannot be performed
during operation. If the collecting efficiency drops due to clogging, stop operation, and perform the dust
removal operation. Continuous operation is not possible.
Configuration
The dust-containing air sucked from the inlet port is dispersed and led to the filter cloth that purifies the air.
The purified air goes through the blower and released from the outlet in the machine roof into the atmosphere.
The dust caught on the filter cloth is shaken off with a shaker operated by a handle. The dust is collected in
the dust pan that is easily taken out from the front door.

Components

Switch

Filter cloth

Handhold Filter-cloth
retaining disc

Air inlet

Inlet cover

Shaker handle
(option) Dust pan
Caster

CFA-110

-3-
 Air
排気 outlet
口

Filter-cloth
Power metal
ろ 布 止fixer
め金具
switch
スイッチ

シェーキング
Shakerハhandle
ンドル

Air吸inlet
込 口port

Inlet
吸 込cover
フタ
Dust
ダスト pan
パン
Front
正面 door
扉
Caster
キ ャスター

CFA-H215C/T, H220

Air outlet
排気口
Ring
吊りボルトbolt

Crank
クランク

Shaker Filter
シェーキング
handle cloth
ろ布
Front door ハンドル
正面扉

Air
吸込口inlet port

Inlet吸込フタ
cover

Dust pan
ダストパン
Caster
キャスター

CFA-H240

-4-
  Chapter 3 Installation
Upon receiving the product, please examine its nameplate to see if the type, voltage and frequency indicated
on it conform with those of the ordered product. Also, check up the accessories for conformity.
In case of any damage to the product caused during transportation or a shortage of parts, please immediately
contact the relevant retailer or a nearby branch or sales office of Showa Denki.
Please dispose of any unneeded packing materials properly according to local ordinances.

Install the dust collector in a place fulfilling the following conditions:

Indoor places not get wet by rainwater
Dust collectors in the CFA series are designed
for indoor use.
For installation, avoid places liable to get wet
that may induce an electric shock and a
product failure.

No dew condensation at room temperature

High temperatures and dew condensation
Ambient temperature: 5°C to 40°C could cause an electric component failure
Humidity: not higher than 80% and/or an electric shock.

Horizontal places free from vibrations

Unusual vibrations could cause the product
topple over.

No hazardous chemicals stored around

Places close to stored petrol, thinner, and other
flammable chemicals have the possibility of an
explosion and/or a fire.
Places near the chemicals, like hydrochloric
acid and sulphuric acid, that produce a
corrosive gas could cause the product to
Thinner
Petrol
corrode.

Places easy for maintenance

Spaces as illustrated on the left must be
secured for dust discharge, filter cloth
４００

replacement and purified-air release.

３０
０

４０
０ ０
７０

Unit: mm

-5-
Installation
 Although the dust collector, equipped with casters, can be readily moved, apply stoppers so it
may not move during operation. Avoid using the collector on a slope. When necessary, move
it slowly on a flat floor.
 When lifting the CFA-H215C/T or H220, hold the handle on the sides, by two or more
persons.
 Ensure an enough space (twice or more as its air outlet diameter) around the dust collector so
it may display adequate suction power with its air outlet not blocked. Place nothing on the
machine.
Electrical wiring
 Only qualified persons should work on the electrical wiring of the dust collector pursuant to
the Electrical Equipment Technical Standards and the Internal Wiring Regulations.
 Make sure of the machine’s power supply as per its nameplate and use what is specified
therein. Operating the machine on a different power supply could be very dangerous causing
an operation failure.
 Use an appropriate fuse (breaker) for the power supply that conforms with the start-up
current.
 CFA-H220(50Hz) does inverter control inside. Please do not be connected to other inverter
output.
 Be sure to earth the power supply connection.

Mo d e l 100V 50Hz 100V 60Hz 200V 50Hz 200V 60Hz 220V 60Hz
Single-phase Single-phase 3-phase 3-phase 3-phase

CFA-110 3.5A 3.5A

CFA-H215C 6A 7.8A

CFA-H215T 2.3A 2.3A 2.1A

CFA-H220 3.4A 3.3A 3.1A

CFA-H240 6.1A 6.1A 5.6A

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Hood and connection of the duct
 The suction air velocity (capture velocity) at the capture point specified in the dust regulations
depends on the type of hood. It also depends on the type of dust and the dispersal conditions,
it is necessary to design the hood so that an appropriate air velocity can be obtained. The air
velocity in the duct should be such that dust does not remain in the duct.
 The duct joints should be tightly sealed so no air may be sucked or leaked through them.
 In case a flexible duct is used, it should not be bent too sharp or unnecessarily sagged so it
may keep a high suction power.
 The air inlet port is on the right flank of the collector, viewed from its front door, in the
ex-factory configuration. It can be changed to the left flank and the port and the inlet cover
may thus be interchangeable.
Standard inlet diameter
CFA-110
CFA-H220 CFA-H240
CFA-H215C/T
φ75 mm φ97 mm φ148 mm
Trial operation
 Before a trial run of the dust collector, make sure:
• that the power supply cable, earth cable, insulation and voltage have been arranged as
specified;
• that there is no air leak at duct joints or no remaining material, bolt, nut or tool left behind in
the duct, and
• that the maintenance door and the dust pan are securely closed.
 With the above points confirmed, turn on the power switch and turn it off quick and observe
the motor cooling fan through the air outlet on the ceiling. If it turns clockwise, it is alright. If it
turns counter-clockwise, then turn off the power supply and change the connections of 2
cables of the 3 power supply cables. (Excluding single-phase models)

 Chapter 4 Operation
Routine operation
Operation procedures: [1] Make sure that the front door is closed.
[2] Turn on the power switch to start operation.

End operation procedures: [1] Turn off the power switch.

[2] Wait about 2 minutes and then shake off the deposited dust on to the
dust pan and discharge.

 Since continuous operation of the dust collector would blind the filter cloth and cause the
suction power to drop, stop operating the machine and go through the shaking-off and
discharge steps.
 During operation, the shaking-off and discharge procedures are disabled.
 Discharge of dust should be performed at the end of the day’s operation. During this
procedure, be sure to wear protective goggles and gloves and a dustproof mask.

-7-
How shake off the dust
CFA-110 CFA-H215C/T, H220, H240
Detach and clean the filter cloth. While holding the collector body by hand, pull the
If equipped with an optional shake-off device, turn shaker handle about 3 times. After use, return the
its handle to shake off the dust. handle to its original position so it may not sag.

Caution
 When operating the power switch, press it quick and securely.
Insufficient switch operation could induce a machine failure due to heating and damage
caused to the machine.
 Although, in case of fine dust, a small amount can leak from the dust collector at its start, this
phenomenon will disappear when dust deposits on the filter cloth overall. If, however, the
leakage continues, replace the cloth with the optional high-performance type.
Since continuous operation of the machine would weaken its suction power due to the blinding
of the filter cloth, stop the machine and Please perform operation to shake off.
 The dust pan, fixed in position with spring, can somewhat hitches on its casing when drawn in
or out. When returning the pan into position, push it in until it clicks fixed (except CFA-110).
 Clean the pan before it accommodates too much dust.
 It is not possible to shake off or discharge dust during operation.
 When the day's operation is over, dispose of the dust. Wear protective glasses, a dust mask,
and gloves when disposing of dust.
 The filter cloth’s life is one to two years on the average, which, however, depends on the
machine’s operation time and dust attributes and concentration. Replace the cloth with a new
one if the shake-off procedure fails to recover the suction power.
 Although the filter cloth may not be damaged by usual operation, stop the machine operation
and replace the cloth with a new one if it is damaged. Using a damaged filter cloth could not
only allow dust to be released into the atmosphere but damage the built-in blower as well.
 Handle powder dust particles collected by the dust collector correctly according to the
national or local governmental regulations in the same manner as disposal parts such as old
replaced filter cloths, except when reusing them.

-8-
  Chapter 5 Maintenance

Be sure to maintain the dust collector at regular intervals. This is important to prevent the
machine’s failure or accident and keep it serving you for many years to come. During the
maintenance work, always turn off the power supply to the machine and when replacing the filter
cloth use protective goggles and gloves and a dustproof mask. Perform maintenance and
inspections following the occupational safety regulations of your country.

What and when to inspect

What When Description

Front door Before operation Must be securely closed.

Dust pan ↑ Dust must be disposed.

Motor load current Once a day Read the control panel ammeter, etc.
Exhaust air ↑ Dust must not leak.
Blower vibrations ↑ No vibrations or noise
Shaker ↑ No noise or operation error

Filter cloth application Once a month Cloth must not come off, loosen or damage.
Piping ↑ No bolt coming off or loosened or no worn-off packing
Ducting ↑ No dust deposits or clogs
Electrical wirings ↑ No poor insulation or loosened terminal

Inside of the machine One a year Clean the components of adhered dust.
The machine and its casing ↑ No corrosion or gap

-9-
Replacing the filter cloth Knob

CFA-110 Filter cloth

retaining disc
Guide pin
(1) Remove the 3 knobs from the filter-cloth retaining
Filter cloth
disc.
(2) Detach the retaining disc and remove the old cloth.
(3) Insert a new cloth and fix the filter into the guide pins.
(4) Secure the retaining disc with the 3 knobs.

CFA-H215C/T, H220 CFA-H240

(1) Raise the filter-cloth metal fixers (1) Remove the crank by loosening the rope
retaining screw and the wing nut. Draw out the
dust pan.

Snap lock
Wing nut
Rope
retaining Crank
screw

Dust pan
Rope

(2) Draw out the filter cloth to this side and take it (2) Unlock the snap locks located on both upper
out. sides of the filter case and pull out the case to
this side.

Filter case

- 10 -
(3) Insert a new filter cloth in the direction as shown (3) Loosen off the M6 nuts that fix the filter cloth and
in the figure below, make sure that the cloth is remove the cloth.
inserted in the back groove and push it into
position completely.

Insert in the correct

direction. Nut and washer

‘Topside’
marking

(4) Pull up this side of the filter cloth and secure it in (4) Attach a new cloth, with the ‘Topside’ marking
position with metal fixers as it was. facing up, and assemble the whole thing
reversely to the procedures mentioned above.
Adjust the rope’s tension (See next page).

Adjusting tension of the shaking rope

Regulate the tension of the shaking rope if the shaker handle is loosened too much or when the filter cloth
is renewed.

(1) Loosen the 2 rope-retaining wing bolts and make the shaker handle closely contact the machine body.
CFA-H215C/T, CFA-H220 (Remove the filter cloth.) CFA-H240

Rope retainer Rope retainer

Rope

Rope

(2) While pulling the rope end, turn the rope retainer by 2 to 3 cm in the arrow-marked direction.

- 11 -
(3) While pulling the rope, fasten the rope-retaining wing bolt.

Rope retainer in detail

Note: There can be a little air leak from the rope-pierced portions when the rope tension is regulated, which,
however, may not affect the machine’s performance.

In case the rope is broken or severely worn out, replace it with a new one.

Starter rope
Rope for replacement φ4 mm × 50–60 cm
(nylon solid braided)

The rope is commercially available.

Replacement filter cloth sizes

Type Cloth size Number of cloths

applied

CFA-110 Φ 150 mm x 250 mm 1

CFA-H215C/T 420 mm x 420 mm x 75 mm 1

CFA-H220 420 mm x 420 mm x 95 mm 1

CFA-H240 420 mm x 540 mm x 75 mm 2

Use our genuine filter cloths for replacement.

During replacement work, be sure to wear protective goggles and gloves and a dustproof mask.

- 12 -
Troubleshooting

Symptom Possible causes Remedies

Blower motor fails to • Power absent • Turn on the power supply.

start. • Thermostat activated • Turn off the switch,determine the cause(s), remove
it (them) and restart.
• Motor failure • Inspect and repair the motor (Consult the
manufacturer).

Blower noise, • Broken motor bearings • Replace the bearings.

unusual vibrations • Foreign matter mixed • Remove the foreign matter.
• Impeller out of balance • Clean the impeller.
Correct the imbalance (Consult the manufacturer).

Blown dust leakage • Broken filter cloth • Replace the filter cloth.
• Filter cloth mounting error • Remount the filter cloth.
• Packing worn off • Replace the packing with a new one.
• Dust particles too fine • Replace the filter cloth with a higher-performance
version.

Poor suction power • Damper closed • Open the damper.

• Inlet piping clogged • Clear deposit from the piping.
• Filter cloth blinding • See the following item.
•Using both side of suction port • Please make piping branch only on one side of
suction port and pipe it again.

Filter cloth blinding • Filter cloth’s life • Replace the cloth with a new one.
• Adverse dust attributes • Effective measures should be taken separately.

•Too much quantity of dust •Please install pretreatment device like cyclone,
sedimentation box etc.

•Because of too high filtering •Control suction amount by using damper etc.
speed, dust enters into the
meshes of filters and cannot
be removed by dust removing
system.

- 13 -
Specifications
Note: The noise levels were measured at 1 m from the machine’s front, which may vary depending on the
environment and condition in which to use the machine.

Model Motor Airflow rate Static Filtration Dust container Noise level Mass
kW m3/min pressure area capacity dB(A) kg
kPa m2 L
0.8
(50 Hz)
CFA-110 0.2 4 0.8 3.1 64 25
1.18
(60 Hz)
4 2.10
47 (50 Hz)
CFA-H215C 0.4 5 1.76 1.5 6.9 64
44 (60 Hz)
6 1.37
4 2.20
49 (50 Hz)
CFA-H215T 0.4 5 1.86 1.5 6.9 64
47 (60 Hz)
6 1.47
6 2.45
CFA-H220 0.75 8 2.15 2 6.9 65 59
10 1.72
12 2.65
CFA-H240 1.5 16 2.45 4 16.9 68 135
20 2.06

Outside dimensions（mm) CFA-110

- 14 -
Outside dimensions (mm) CFA-H215C/T, CFA-H220
(The numeric values in brackets □ show the dimensions of the H220)

Outside dimensions (mm) CFA-H240

- 15 -
  Chapter 6 Warranty
Scope of warranty
In the case of any malfunction and/or breakage/damage that occurs under normal conditions (under
our Instruction Manual) within the warranty period, exchange and/or repair will be performed by our
company free of charge based on the contents of this provision.

Warranty period
One (1) year from the date of delivery of the product.

Even during the warranty period, only charged service is provided in principle, if any of the
following applies:
• Failure or damage due to incorrect use that is not compliant with these Operating Instructions, labels
attached to the body, or other instructions, and/or unauthorized repair or modification
• Failure or damage due to transportation, dropping, etc. after the purchase
• Failure or damage due to fire, earthquake, storm, flood, lightening or other natural disasters,
environmental factors such as salt damage and public pollution, abnormal voltage, use of a power
supply (voltage or frequency) other than that specified, or the like
• Failure or damage due to repair or modification (including punching, etc. in the product) not
conducted by our company
• Failure or damage due to the use of parts other than those designated by our company
• Trouble when I absorbed the dust except the meeting and the damage
• The trouble that damage of the filter cloth and the packing that happened by having absorbed a
sharp material depends on and the damage
• Discoloration, scratching, natural consumption of consumable parts or other defects due to use or
deterioration over time
• Failure or damage caused by neglecting the maintenance and inspection described in the Operating
Instructions
• Expendable supplies including the filter cloth and packing

※[Notices]
(1) The descriptions in these Operating Instructions are subject to change without prior notification in
the future.
(2) We have made all possible efforts to prepare these Operating Instructions. However, if you have
any questions about them or find any inquiries, errors, omissions, etc., please contact our nearest
branch or sales office.
(3) If the power supply frequency changes due to a change in the location where the blower is used, it
may not be used as it is. We will consider a measure in each case where it is required. In such a
case, please contact our nearest branch or sales office.
(4) At the time of inquiry, please describe the product type and the manufacturing number indicated on
the product nameplate.

- 16 -
Notes ：We are not responsible for any accident or breakdown caused by different/wrong use from this
manual, and improper repair or remodeling.

Business Promotion Dpt.

1-25 Shinden Kita-machi, Daito-city, Osaka, Japan 574-0052
Tel: +81-72-870-5708 Fax: +81-72-870-7243
Email: sales@showadenki.co.jp
http://www.showadenki.co.jp