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General| Refrigerant | R-410A |
|---|---|
| Compressor Type | Scroll |
| Control System | Microprocessor-based |
| Efficiency | High efficiency |
| Voltage Options | 208/230/460V, 3-phase |
| Application | Data center cooling |
| Heating Capacity | Optional electric or hot gas reheat |
Details the Data Aire gForce Ultra CRAC equipment features, including its cooling, reheat, humidification, and dehumidification capabilities.
Explains the structure of the gForce Ultra model number for clear identification of unit specifications and features.
Provides guidelines for inspecting the unit upon delivery to check for any external damage before unpacking.
Lists the essential documents included with the unit, such as startup sheets and warranty information.
A pre-installation checklist to ensure all necessary steps are reviewed for proper unit operation.
Guidelines for preparing the installation space, including vapor barriers and minimizing outside air.
Safe procedures for moving, lifting, and preparing the unit for installation.
Instructions for rigging and moving the unit safely, including skid and spreader bar usage.
Guidance on optimal unit placement for airflow, service access, and heat load proximity.
Procedures and precautions for storing the unit before installation to prevent damage.
General practices for proper piping installation, including oil return and vibration control.
Instructions for installing the condensate drain line, including trap requirements and slope.
Details on connecting the water supply to the humidifier unit.
Procedures for thoroughly checking the refrigeration system for leaks before charging.
Steps for evacuating the system to remove moisture and air for optimal operation.
Guidance on verifying the adequacy of the electrical service supply for the unit.
How to read and understand the unit's electrical specifications on the nameplate.
Requirements for ensuring proper and continuous earth ground connection for the unit.
Specifies acceptable voltage supply variations and phase imbalance limits.
Instructions for wiring remote components like condensers and fluid coolers.
Connecting external dry contacts or switches for remote unit shutdown.
Details on accessing and utilizing the control panel's remote alarm output contacts.
Information on optional condensate pumps, including factory-mounted and loose configurations.
Instructions for installing the standard condensate probe for water detection.
Details on the optional water detection cable for sensing moisture.
Information regarding the installation of optional remote sensors for environmental monitoring.
Using manual slide switches for testing and startup of unit components.
Locating and understanding the ladder-type schematics for electrical troubleshooting.
Fundamental principles for safely and accurately charging the system with refrigerant.
Procedure to verify correct voltage phasing for unit components like compressors and fans.
Specific guidelines and procedures for charging air-cooled refrigeration systems.
Instructions for charging water or glycol-cooled systems, referring to unit nameplate.
Methods for checking compressor operation, oil level, and vibration post-charging.
Regulations and practices for safe recovery, recycling, and handling of refrigerants.
Monitoring system operation after initial startup to ensure correct performance characteristics.
Overview of key refrigeration system components and their functions.
Importance of proper glycol concentration for freeze protection and corrosion prevention.
Table detailing the internal fluid volume for downflow evaporator units.
Table detailing the internal fluid volume for upflow evaporator units.
Highlights the benefits of variable capacity compressor technology for efficiency and quiet operation.
Procedures and system functions to ensure adequate oil return to the compressor.
Explains the role of crankcase heaters in preventing refrigerant migration.
Guidance on checking and maintaining the correct oil level in the compressor sight glass.
Overview of the Variable Frequency Drive (VFD) and its energy-saving advantages.
Introduction to the dap4™ control panel, its components, and basic operation.
Details about the control module, a main component of the dap4™ system.
Details about the display module, featuring an LCD screen for unit status.
Description of the six keys on the display panel used for navigation and input.
Procedure for entering menus and the initial service level password.
Step-by-step instructions on how to modify the unit's service level password.
General notes on navigating menu screens and applicability to the gForce Ultra unit.
Instructions for powering the unit ON or OFF using the control panel menu.
How to view and adjust temperature, humidity, and superheat setpoints.
Accessing logs for alarms, component runtime hours, and resetting runtimes.
Viewing unit identification details, processor version, and data.
Configuring network communication protocols like MODBUS and BACnet.
Procedure for calibrating installed unit sensors for accurate readings.
Operating individual unit components manually for service and testing.
Accessing factory-configured settings, typically for qualified personnel only.
Configuring control alarms, operational limits, and alarm messages.
Setting up unit inputs and outputs, requiring factory password access.
Information regarding the optional Zone Master control system.
Overview of controls for secondary heat exchangers and related components.
Describes the six different fan speed control modes available in DX logic.
Details the compressor control modes based on return air or discharge air temperature.
Explanation of safety features and alarm conditions for the variable speed compressor.
Overview of the dehumidification modes and control strategies.
Guidance on inspecting, cleaning, and replacing air filters for optimal unit performance.
Information on troubleshooting and replacing fuses, especially during voltage inconsistencies.
Maintenance recommendations for the electric reheat elements.
Maintenance overview for the steam generator type humidifier.
Guidance on when to replace the refrigerant filter drier.
Adjustment and function of the current sensing relay for detecting airflow.
Maintenance information for Electronically Commutated (EC) motors and plug fans.
Table providing recommended line sizes for hot gas lines on single circuit units.
Table providing recommended line sizes for hot gas lines on dual circuit units.
Table providing recommended line sizes for liquid lines on single circuit units.
Table providing recommended line sizes for liquid lines on dual circuit units.
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