Showa Denki CRN Series User manual

035A(E) − D
CRNSeries
Original instructions
CRNSeries
Operation Manual & Cautions

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Cautionary information indications used in this manual .................
Meanings of symbol marks used in this manual .............................
Using the Mistresa in a safe manner ..............................................
Items to check upon product delivery and storage .........................
Internal component names and layout ...........................................
Product labels .................................................................................
Ambient conditions in the area of installation .................................
Suction port cautions ......................................................................
Product installation .........................................................................
Piping ..............................................................................................
Operating cautions .........................................................................
Maintenance and inspections .........................................................
Warranty .........................................................................................
Contact information ........................................................................
Specifications .................................................................................
[Contents]
Thank you for purchasing the Mistresa from Showa Denki. This manual explains the
specifications for the [Mistresa units from CRN Series].
Please read the operating instructions and cautionary information carefully to ensure that the
Mistresa is used in a safe and efficient manner. Special attention should be given to
cautionary information which bears the [ ] mark.
Keep this manual in a secure location
where it can be easily accessed.

−１−
All warnings and instructions
must be strictly observed.
A prohibited action
(Target is unspecified)
Failing to heed the
instructions could
result in accidents
Follow instructions
carefully
Disassembly prohibited
Electrical shock hazardElectrical ground required
1. Cautionary information indications used in
this manual
2. Meanings of symbol marks used in this manual
"[ ] WARNING" mark indicates cautionary information that, if not
heeded, could result in serious injury or death, and could also
pose a fire hazard.
A "[ ] CAUTION" mark indicates cautionary information that, if not
heeded, could result in injury and/or equipment damage.

−２−
WARNING Do not install in hazardous locations
3. Using the Mistresa in a safe manner
The Mistresa does not have a pressure and explosion-proof construction.
Operating the Mistresa in areas where explosive gases, etc., are present
could result in an explosion in the event of an electric motor burnout.
CAUTION Cautionary notes on using the CRN Series Mistresa
WARNING Fire and electrical shock prevention
WARNING Maintenance and inspections prohibited
during impeller rotation
The Mistresa wiring work must be performed by a qualified electrician, and must
conform to the relevant electrical engineering standards and
internal wiring standards.
Always wait at least 2 minutes after a power OFF before performing
filter replacement work or inspections (to allow the impeller's inertial
rotation to come to a complete stop).
WARNING Fire and explosion prevention
Never allow explosive gases , organic solvents , or flames to be sucked
into the suction port.
Mistresa from CRN Series use high efficiency motors (IE3) that are designed to
have lower motor winding resistances than the standard motors (IE1 or equivalent)
so as to reduce losses. Since this design feature calls for a higher starting current,
replacing the motor of your existing Showa Denki’s Mistresa may
require to change the circuit breakers, thermal relays, and other relevant
devices.
This product collects oil mist generated by equipment such as machine tools
to ensure and maintain a comfortable working environment. Do not use the
product for any purpose other than the originally intended.

−３−
4. Items to check upon product delivery and storage
Although all our products are thoroughly tested and inspected prior to
shipment, the customer should nonetheless check the following items when
taking delivery of the Mistresa.
If necessary, store the Mistresa in ambient conditions below.
・Indoor avoiding direct sun beams
・Temperature between 0°C to 40°C
・Humidity between 10% to 90% (No condensation)
Follow the instructions below if it is necessary to stop the operation or store
the Mistresa for 3 months or longer.
(1) Storing Mistresa in the original packaging
Store the Mistresa in a dry area indoor where the temperature does not
change much.
• Verify that the delivered product (model, etc.) is the same as
that which was ordered.
• Verify that the product has not been damaged or deformed,
etc., during shipment.
• Verify that all the product accessories are present.
Operation & Cautions Manual
Primary filter
(for replacements)
Drain tube 2.5m
Hose band
(for drain tube)
Anti-vibration pads
Duct companion flange
Packing
(for duct companion flange)
Bolts + nuts
(for securing the duct companion flange)
Crimp terminals
(1 spare)
Standard Accessories
1 copy
1 piece
2 pieces
2 pieces
4 pieces
1 piece
1 sheet
4 sets
7 sets
* Two duct companion flanges come with the product – one for
installing the product and the other for connecting with the
next machine. The packings (for duct companion flanges) for
CRN Series are affixed to the duct companion flanges.
*