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

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Summarization of Contents

Cautionary Information Indications
WARNING Mark Definition
Defines WARNING as indicating serious injury, death, or fire hazard if not heeded.
CAUTION Mark Definition
Defines CAUTION as indicating injury or equipment damage if not heeded.
Safe Operation and Cautions
Hazardous Location Installation Prohibition
Do not install in hazardous locations due to explosion risk from potential motor burnout.
Fire and Explosion Prevention
Never allow explosive gases, organic solvents, or flames into the suction port.
Electrical Safety Precautions
Ensure wiring work is performed by a qualified electrician conforming to standards.
Maintenance During Impeller Rotation
Maintenance and inspections are prohibited during impeller rotation; wait 2 minutes after power off.
CRN Series Motor Cautions
CRN Series motors may require circuit breaker changes due to higher starting current.
Product Delivery and Storage Procedures
Verify Product Upon Delivery
Check model, condition, and accessories against order upon delivery.
Ambient Storage Conditions
Store in a dry area, avoid direct sun, control temperature (0-40°C) and humidity (10-90%).
Long-Term Storage Guidelines
For storage over 3 months, keep in original packaging in a dry area with stable temperature.
Product Components and Labels
Internal Component Identification
Diagram showing internal components like impeller, motor, and casing.
Product Nameplate Information
Details on the nameplate include model, voltage, current, pressure, and airflow rate.
Installation Environment Requirements
Indoor Installation Mandate
The Mistresa must be installed indoors.
Floor Load Bearing Capacity
Ensure the installation floor has sufficient bearing strength for the machine's weight.
Vibration and Impact Isolation
Install the unit away from strong vibration or impact sources.
Level Surface Installation
Install the Mistresa on a level, flat surface for stability.
Product Installation Procedures
Horizontal Installation
Install in a horizontal manner to distribute weight and ensure proper drainage.
Securing the Unit
Secure the product with bolts to prevent shifting due to vibration.
Anti-Vibration Pad Functionality
Leave a gap at securing bolts to allow anti-vibration pads to work correctly.
Power Supply and Wiring
Power Supply and Voltage Requirements
Ensure power supply conforms to rated voltage, frequency, and fluctuation tolerances (±5% cont., ±10% mom.).
Inverter Operation and Motor Protection
Use burnout prevention terminals and consider insulation strengthening for inverter operation.
Wiring and Terminal Connections
Connect ground wire securely, use insulated terminals, and install cord locks properly.
Burnout Prevention Terminal Usage
Connect terminals A & B for thermal protector to prevent motor burnout, using correct contact ratings.
Burnout Prevention Wiring Diagram
Illustrates connection of burnout prevention terminals with switches for over-current protection.
Piping and Ducting
Duct Hose Material
Use an oil-resistant duct hose for increased service life.
Intake Duct Installation
Use flexible ducts, ensure proper length, avoid sag, and use companion flanges.
Intake Port Spacing
Position intake port approx. 500mm from mist source or use an impact plate to prevent clogging.
Suction Drain Tube Setup
Ensure a liquid seal on the suction drain tube to prevent backflow and clogging.
Discharge Drain Tube Venting
The discharge drain tube must be open to atmosphere for proper drainage.
Drain Tube Connections
Do not connect suction and discharge drain tubes; plug unused tubes.
Operating Precautions
Fire Hazard Prevention
Prevent fires by not sucking explosive gases, solvents, sparks, or cigarettes into the suction port.
Chip Separator Use
Use the optional chip separator in environments with high chip, dust, or mist content.
Oily Mist Filtration
Use after-filters for oily mist or small particulates to maintain collection efficiency.
Filter Clogging Warning
Prevent filter clogging to ensure motor cooling and avoid burnout.
Maintenance and Inspections
Periodic Inspection Schedule
Inspect every 3 months for vibration/sounds; check insulation annually.
Demister Inspection
Procedure for inspecting and removing the demister box.
Drain Line Inspection
Procedure for inspecting the drain line after demister removal.
Demister Washing Method
Washable demisters can be cleaned by air-blowing or soaking with neutral detergent.
Product Warranty Information
Warranty Scope and Limitations
Covers free repairs for product failure, excluding installation costs or indirect losses.
Warranty Period
The warranty extends for 12 months from the date of delivery.
Warranty Service Exclusions
Repair fees apply for damage from incorrect handling, unauthorized repairs, or transport.
General Warranty Exclusions
Excludes damage from natural disasters, foreign matter, unauthorized modifications, or normal wear.
Contact and Support Information
Technical Support Contact
Direct technical inquiries to Showa Denki Co., Ltd., Daito Factory.
Repair and Fault Reporting
Contact Oversea Sales Department for faults and repairs, providing product type and manufacture number.

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