Related Manuals for NOVAIR CTA 48
Summarization of Contents
I INTRODUCTION
1.1 IDENTIFICATION OF THE UNIT
Details unit identification plates showing model, serial number, airflow, and motor specifications.
1.2 CHECK OPERATIONS
Lists inspection checks performed during production, including dimensions, gaskets, and plates.
1.3 PACKING AND TRANSPORT
Guidelines for packing and transporting units, including handling critical components and securing to trucks.
1.4 INSPECTION OF THE GOODS RECEIVED
Procedures for checking unit integrity, paneling, and components upon delivery to identify transport damages.
1.5 MOVEMENT AND INSTALLATION
Safe methods for moving and installing units using lifters, forklifts, or cranes, noting lifting points.
1.6 POSITIONING AND JUNCTION OF SECTIONS
Instructions for aligning and joining modular unit sections on a level surface for proper function.
1.7 UNIT CLEANING
Recommendations for cleaning the unit's interior, floor, and drain pan before initial startup.
3 CONNECTIONS
3.1 DUCTS LINKAGE
Guidelines for connecting supply and return ducts using flanges and flexible joints to minimize vibration.
3.2 COILS CONNECTION
Procedures for connecting water, steam, and freon coils, emphasizing hydraulic plant requirements and counterflow.
3.3 CONDENSATE DRAIN PANS
Information on drain pipe installation, siphoning requirements, and cleaning of condensate drain pans.
3.3.1 SIPHONING
Details on siphon dimensioning for drain pans based on fan pressure (inlet vs. supply) for proper drainage.
3.4 CONNECTION OF HUMIDIFICATION SECTIONS
Instructions for connecting humidification systems, including feed pipes, water softeners, and drain siphoning.
3.4.1 HONEYCOMB HUMIDIFICATION SYSTEM
Steps for setting up honeycomb humidifiers, focusing on water flow adjustment and system types.
3.4.2 HUMIDIFICATION WITH NOZZLES BENCH
Guidance on connecting humidifiers with nozzles, ensuring correct water pressure and nozzle sprinkling.
3.5 CONNECTION OF STEAM HUMIDIFICATION
Procedures for connecting steam feeding pipes and condensate drain pipes for steam humidification systems.
3.6 CONNECTION OF PLATE HEAT RECOVERY UNITS
Focuses on condensate drain pan siphoning and filter cleanliness for plate heat recovery units.
3.7 CONNECTION OF THE FAN SECTION
Checks for fan-motor set mounting, safety device installation, and motor direction before commissioning.
3.7.1 SAFETY EQUIPMENTS
Electrical connection of safety switches and precautions for safely opening fan section access doors.
3.7.2 PREPARATORY OPERATIONS FOR COMMISSIONING
Steps before starting the unit, including motor connections, grounding, and checking fan rotation.
3.7.3 BELTS TENSION
Procedures for checking and adjusting trapezoidal belt tension for optimal transmission performance and wear.
3.7.4 BEARINGS LUBRICATION
Guidance on lubricating bearings every six months for units equipped with grease cups.
3.7.5 ANTIVIBRATION BENCH
Action to remove locking plates from the antivibration bench before commissioning to allow proper spring function.
3.8 ELECTRICAL CONNECTIONS
Covers electrical connections for motors, heaters, and pumps, including wiring and protection.
3.8.1 MOTORS
Details on motor specifications, compliance with regulations, winding types, and connection methods (star/delta).
3.8.2 ELECTRIC HEATERS
Instructions for connecting electric heaters, adjusting thermostats, and limiting operating temperatures to prevent overheating.
3.8.3 ELECTRIC PUMPS
Guidelines for connecting electric pumps, following manufacturer instructions, and avoiding dry running.
4 FILTRATION
4.1 SYNTHETIC OR METALLIC FILTERS
Information on regenerable synthetic or metallic filters, their mounting, and cleaning when pressure drop exceeds 120 Pa.
4.2 BAG FILTERS
Details on non-regenerable bag filters, their mounting, and replacement when clogged.
4.3 ABSOLUTE FILTERS
Information on absolute filters, their replacement when clogged, and initial run without them for circuit cleaning.
4.4 AUTOROLL FILTERS
Description of autoregenerating filters equipped with a control board for automatic renewal of filtering medium.
4.5 ACTIVATED CARBON FILTERS
Details on activated carbon filters, chemical regeneration, replacement of soaked cartridges, and disposal of exhausted carbon.
6 OPERATIONAL MAINTENANCE LAYOUT
6.1 MONTHLY CHECKS
Specific checks to perform monthly, including fan rotor cleaning and belt tension/wear inspection.
6.2 YEARLY CHECKS
Annual maintenance tasks covering electrical connections, belt alignment, motor condition, and fan scroll cleanliness.
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