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Overview of QTC4 chillers, intended use, and manual guidance.
Covers design standards, certifications, and safety compliance for QTC4 chillers.
Explains the meaning and purpose of various safety symbols used throughout the manual.
Describes QTC4 chiller's integration of screw compressors and VSD technology for efficiency.
Details the chiller's automatic control system, including compressor management and system monitoring.
Guidance on identifying unit shipping weight and factors affecting it.
Provides instructions and warnings for safely moving the chiller unit.
Specifies essential site criteria for optimal chiller performance and safe maintenance access.
Details required clearances for unrestricted airflow and preventing discharge air re-circulation.
Provides recommendations for satisfactory chilled liquid piping installation to ensure unit operation.
Recommendations for safe and satisfactory unit electrical connections, including warnings.
Provides dimensional data, load ratings, and specifications for elastomeric isolators.
Provides dimensional data and load ratings for 1-inch deflection spring isolators.
Prerequisites for commissioning, emphasizing authorized personnel and safety checks.
Procedures for checking and adding refrigerant charge via the evaporator sight glass.
Details necessary freeze protections for operating the QTC4 chiller in sub-freezing environments.
Introduces the keypad and unit switch for controlling chiller operations.
Describes system faults that cause compressor shutdowns and auto-reset conditions.
Details faults causing system shutdowns, auto-reset behavior, and lockout conditions.
Details how to use the STATUS key to view chiller and system operational status messages.
Describes programming cooling setpoints and ranges using the SETPOINTS key.
Details how to adjust various programmable parameters like suction pressure and ambient temperature cutouts.
Emphasizes continuous operation through regular maintenance and owner responsibility for service.
Provides detailed procedures for safely removing, evacuating, and charging refrigerant in the QTC4 chiller.
Provides a guide to identify and resolve common chiller problems and their possible causes.
Instructions for safely isolating electrical supply, removing refrigerant, oil, and water systems.
General
