The ASAMI Multi-VRF Centralized Controller is designed for managing commercial air conditioners, specifically models CE52-24/F(C). This owner's manual provides comprehensive instructions for installation, operation, and maintenance of the centralized controller.
Function Description
The Multi-VRF Centralized Controller serves as a central management unit for multiple VRF (Variable Refrigerant Flow) indoor units, connecting to an outdoor network. It allows for unified power supply and communication with the indoor units, enabling centralized control of the air conditioning system. The controller supports various functions including:
- Main Page Display: Provides an overview of the system status, including time, help information, settings, touch functions, schedule, group, all-control, and indoor unit settings.
- Help Info: Offers simple operation manual information.
- Indoor Unit Management: Displays a list of indoor units controlled by the centralized controller. It allows for individual unit control, including setting temperature, operation mode (Auto, Cooling, Dry, Fan, Heating, Floor heating, Space heating, 3D heating), fan speed, and swing settings. It also indicates error status and shield status for each unit.
- Single Unit Control: Provides detailed control over individual indoor units, allowing users to turn units on/off, set mode, temperature, fan speed, and swing. It also includes advanced settings for sleep, quiet operation, auto quiet, E-Heater, leave, rapid, save, shield all, shield on/off, shield mode, shield temp, and shield timer.
- All-Control Function: Enables simultaneous control of all indoor units, including turning them on/off, setting mode, temperature, fan speed, and swing.
- Group Control: Allows users to create and manage groups of indoor units, enabling simultaneous control of multiple units within a group. This includes group display, group names, and adding/editing/deleting groups.
- Schedule Management: Facilitates the creation and management of operating schedules for indoor units, allowing for automated control based on time and day. This includes setting ON/OFF times, exceptions, and adding/editing/deleting schedules.
- Local Setting: Provides options for configuring general controller settings such as sound, language, temperature unit, 24-hour format, brightness, backlight time, time setting, user password, and customer service information.
- Engineering Setting: Allows for advanced configuration, including indoor unit registration, name and icon setting for indoor units, and running time display.
Important Technical Specifications
- Communication Cord: The centralized controller requires a communication cord. For indoor networks, a light/ordinary polyvinyl chloride sheathed cord (60227 IEC 52 / 60227 IEC 53) is recommended, with a cord size of 2x0.75~2x1.25 (mm²/AWG) and a total length of ≤1000m (≤3280-5/6 feet). For outdoor networks, a cord (60227 IEC 52 / 60227 IEC 53) is recommended, with a cord size of 2xAWG18~2xAWG16 and a total length of ≤250m (≤820-1/5 feet). If the cord size is 2x1mm² (2xAWG16), communication cord can be stretched longer. However, the total length cannot exceed 1500m (4921-1/4 feet).
- Power Supply: The centralized controller operates on an independent power supply. The input voltage range is 100—240 VAC, with a frequency range of 50/60Hz. The power cord should comply with instructions in the manual. A single-cord soft conductive sheathed cord (60227 IEC 08) with a cord standard of IEC 60227-3:2007 and a cord size of 1.5 mm² is specified.
- Dimensions: The centralized controller has a dimension of 184.4 x 138 mm for the electric box cover and 128.2 x 185.2 mm for the controller itself.
- Connectivity: The controller can connect to up to 16 sets of outdoor systems and up to 255 sets of indoor units. It supports communication cords at the G1 and G2 ports.
- DIP Switch (SA2_Addr-CC): This switch is used to set the centralized control address. The default factory setting is "00000".
Usage Features
- Capacitive Touch Screen: The centralized controller uses a capacitive touch screen for user interaction.
- Intuitive Interface: The screen displays various icons and buttons for easy navigation and control. Icons can be operated directly, and text-based information is provided.
- Status Indicators: Sleep function is indicated by a thin light (invalid/not selectable) or a light (off/not selected). Dark orange indicates on/selected.
- Sliding Bar: For settings like brightness or temperature, a sliding bar allows for easy adjustment.
- Zone Button: On the schedule management page, a zone button can be pressed to open or close the schedule.
- Password Protection: User password can be activated to prevent unauthorized access.
- Timeout Period: The screen will shut off and the centralized controller will enter sleep mode when the timeout period is over.
- Customer Service: The controller can display the name and phone number of the local customer service center for quick access to support.
- Multi-language Support: The controller supports system languages such as English Simplified Chinese or Traditional Chinese.
Maintenance Features
- Installation Procedure: Detailed steps are provided for installing the centralized controller, including mounting the electric box cover, connecting power and communication cords, and securing the controller.
- Removal Procedure: Instructions for removing the controller are also provided, which involves disconnecting wires and detaching the unit from the wall.
- Troubleshooting: The manual advises against knocking on, throwing, or frequently detaching the centralized controller. It also warns against operating the controller with wet hands or scratching the screen with hard or sharp objects.
- Communication Malfunction: Users are advised to make sure the communication cord is connected properly to avoid communication malfunction.
- Environmental Considerations: The manual warns against installing the centralized controller in places with corrosive gas or serious dust, salt mist or oil smoke, and in wet and damp places with direct sunlight. It also advises against placing it near high temperature objects or places where units might be splashed by water.
- Factory Reset: In case of debugging issues or if the centralized controller is finished, connected in to the network, and needs to restore the default ex-factory setting, it is possible to restore the ex-factory setting for the centralized controller.
- Error Status Display: The controller displays error icons if an indoor unit is malfunctioning.
- Shield Status Display: The controller displays shield icons if an indoor unit is in shield status.
- Address Conflicts: If address conflicts occur, the unit cannot run properly. The manual provides a table for setting DIP switches to avoid such conflicts.
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