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General| Model | RTAA-130 |
|---|---|
| Refrigerant | R-22 |
| Voltage | 460V |
| Cooling Capacity | 130 tons |
| Power Supply | 460V/3/60 |
| Type | Air-cooled helical rotary chiller |
Covers inspection checklist, loose parts inventory, and damage reporting procedures.
Defines abbreviations used throughout the manual for clarity and reference.
Details specific contractor tasks and responsibilities for successful unit installation.
Details information found on the outdoor unit's identification plate.
Details information found on the compressor's identification plate.
Details information found on the remote evaporator's identification plate.
Basic applicability of installation instructions for packaged and remote units.
Steps to take before commencing unit installation, including damage reporting.
Guidance on selecting an appropriate installation site, including noise considerations.
Requirements for a stable and level mounting base for the unit.
Specifies necessary space around the unit for access to service points.
Step-by-step instructions for safely lifting and moving the unit.
Instructions and recommendations for connecting the evaporator to the water system.
Lists and describes essential components for evaporator water connections.
Information regarding the drain connection for the evaporator unit.
Details on the installation and function of an optional flow switch.
Measures to prevent freezing in the chilled water system.
Procedure for cleaning the water tubes within the domestic water heater.
Measures to prevent freezing in the domestic water heater system.
Overview of the remote evaporator system configuration and design considerations.
Factors influencing line sizing and system design for remote evaporators.
Method for calculating total pipe length for accurate refrigerant line sizing.
Tables and procedures for determining correct liquid refrigerant line sizes.
Tables and procedures for determining correct suction refrigerant line sizes.
Instructions for the proper installation of refrigerant sensors.
Methods for calculating the correct refrigerant charge for the system.
Procedures for calculating and adding the correct amount of compressor oil.
Safety and code compliance guidelines for all electrical wiring.
Requirements and guidelines for unit power supply connections.
Requirements for providing power to the unit's control circuits.
Power requirements for unit heat tape protection.
Power requirements for connected water pumps.
Power requirements for auxiliary heat tape on system piping.
Wiring for chilled water pump interlock and external unit shutdown signals.
Guidelines for proper installation of low voltage wiring.
Wiring instructions for the emergency stop function.
Wiring for enabling/disabling circuit #1 lockout control.
Wiring for enabling/disabling circuit #2 lockout control.
Control wiring requirements for the ice making feature.
Details for using remote input devices for setting CWS.
Using voltage signals for remotely setting CWS.
Using current signals for remotely setting CWS.
Details for using remote input devices for setting CLS.
Using voltage signals for remotely setting CLS.
Using current signals for remotely setting CLS.
Requirements for communication link wiring and installation.
Steps to establish the communication link with control systems.
Checks to perform upon unit delivery for damage and completeness.
Verification of installation site suitability and proper unit mounting.
Checks for proper installation of water piping and connections.
Verification of all electrical connections and wiring integrity.
Overview of the RTAA series chiller's mechanical components and operation.
Describes the fundamental refrigeration process of the chiller.
Details on the compressor's motor, rotors, and slide valve mechanism.
Explains how compressors are started and how load is managed.
General description of oil circulation, control, and the compressor heater.
How the Domestic Water Heater option utilizes waste heat from the oil circuit.
Explanation of how oil is supplied to the compressor bearings.
Explanation of how oil is supplied to the compressor rotors for lubrication.
Purpose, function, and maintenance of the refrigerant circuit oil filter.
Description of condenser fan configurations and operational staging.
Overview of the Adaptive Control system's modular components.
Description of the operator interface's digital display and its functions.
Overview of the UCM's menu structure for configuration and monitoring.
How to navigate menus, adjust settings, and enable/disable features.
Description of the primary display showing current unit operating status.
Details on service-related parameters and diagnostics accessible via Menu 1.
Further service parameters including sensor readings and pressures.
Configuration options for features like resets, setpoints, and ice making.
Displays factory-set parameters, safety limits, and control responses.
Additional factory settings, compressor details, and fan configurations.
Key pressure and temperature settings for mechanical components.
Essential checks to perform before energizing and starting the unit.
Verification of proper voltage input and range for unit operation.
Importance and calculation of voltage phase imbalance to prevent motor issues.
Ensuring correct electrical phase sequence for safe compressor rotation.
Instructions on measuring and interpreting pressure drop in water systems.
Instructions for configuring the Unit Control Module's settings.
Initial steps for preparing and starting the chiller unit.
How to measure and interpret superheat for system diagnostics.
How to measure and interpret subcooling for system diagnostics.
Procedure for safely shutting down and restarting the unit for short periods.
Procedure for safely shutting down the unit for extended periods.
Importance of performing routine maintenance and using operator logs.
Tasks to perform during weekly checks for system operation and maintenance.
Procedure for cleaning condenser coils to maintain operating efficiency.
Method for chemically cleaning evaporator tubes if fouling occurs.
Procedure for cleaning the water tubes within the domestic water heater.
Procedure for checking the oil level in the oil separator.
