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General| Series | VRV |
|---|---|
| Model | RXYQ72-384XAYCA |
| Type | Heat Pump |
| Refrigerant | R-410A |
| Power Supply | 208-230V / 3Ph / 60Hz |
| Cooling Capacity | 72000-384000 BTU/hr |
| Heating Capacity | 81000-432000 BTU/hr |
| Operating Temperature Range (Cooling) | 23°F to 122°F |
| Operating Temperature Range (Heating) | -4°F to 60°F |
Essential safety precautions for workers and users, including warnings and prohibited actions for safe operation and maintenance.
Explanation of standard icons used throughout the manual to indicate warning, caution, note, and reference information.
Records changes and additions made to the manual across different versions, including model additions and updates.
Lists all applicable outdoor unit model names and their capacity ranges, including combinations and connection ratios.
Provides visual representations and descriptions of the single, double, and triple outdoor unit configurations.
Details the possible combinations of outdoor units and the required multi-connection piping kits for different system capacities.
Outlines the connection ratio guidelines for single, double, and triple outdoor units and their maximum combination capacities.
Lists detailed technical specifications for various outdoor unit models, including power supply, capacity, dimensions, and safety devices.
Presents detailed piping diagrams for outdoor units, indoor units, low-temperature hydroboxes, and outdoor-air processing units.
Illustrates the location of key components within the outdoor units (RXYQ72-120XA, RXYQ72-120XB and RXYQ144/168XA, RXYQ144/168XB).
Explains and illustrates the refrigerant flow during cooling, heating, cooling oil return, and defrost heating oil return operations.
Lists indoor unit models compatible with wired and wireless remote controllers, including specific controller part numbers.
Details the names and functions of buttons and displays for BRC1E73 and BRC1H71W remote controllers.
Explains how to configure remote controllers as Main or Sub units, including field settings and error handling.
Guides on setting the wireless remote controller and receiver addresses for proper system operation and group control.
Describes how to set group addresses for centralized control using operating remote controllers, covering both BRC1E73 and BRC1H71W.
Outlines the service and maintenance menus accessible via the remote controller, detailing available settings and data.
Provides information on accessing and utilizing the Administrator and Installer menus for advanced configuration and settings.
Illustrates the operational logic of the outdoor unit, detailing control sequences from startup to protection.
Explains various stop conditions for the system, including error stops, system stops, and slave unit stops.
Details the restart standby and crankcase heater control functions used to protect the compressor and manage refrigerant.
Describes the procedures for startup control in both cooling and heating modes, including pressure equalization and four-way valve positioning.
Explains fundamental control functions like normal operation, compressor PI control, operating priority, and fan step control.
Details protection mechanisms such as high pressure, low pressure, discharge pipe, compressor body, and inverter protection.
Covers special control functions like pump down, oil return, defrost, and outdoor unit rotation for optimal system operation.
Explains additional control features such as backup operation, demand operation, and heating operation prohibition.
Provides an overview of indoor unit control logic, including operation flowcharts, temperature settings, and thermistor functions.
Details how to perform field settings for indoor units using remote controllers, including lists and explanations of various modes.
Explains DIP switch settings, accessing BS buttons, connecting PC configurators, and monitoring functions for outdoor units.
Outlines procedures for checks before test operation, checkpoints, and specific test operations for hydroboxes and gas furnaces.
Provides a guide to diagnosing and resolving system issues based on observed symptoms related to indoor and outdoor units.
Explains how to check and interpret error codes displayed on the remote controller for BRC1E73, BRC1H71W, and wireless controllers.
Lists and describes various error codes, their causes, and troubleshooting steps for indoor units, outdoor units, and system errors.
Provides comprehensive wiring diagrams for outdoor units, indoor units, and air treatment equipment for installation and troubleshooting.
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