|C H A P T E R 2|
This chapter describes the physical, environmental, and electrical requirements for the Sun Rack 1000-38 cabinet.
The floor area at the installation site must provide enough stability to support the weight of the cabinet and installed trays, sufficient space for installation and servicing of the cabinet and components, and sufficient ventilation to provide a free flow of air to the cabinet.
To ensure safe and proper operation of the system, and ease of maintenance, make sure that all of these requirements are met before using the cabinet.
TABLE 2-1 provides the physical dimensions of the Sun Rack 1000-38 cabinet.
A fully loaded Sun Rack 1000-38 cabinet has a maximum weight of 1625 pounds (737 kilograms). The total weight of your Sun Rack 1000-38 cabinet depends on the number and type of components installed in the cabinet. TABLE 2-2 lists the weight of an empty cabinet and the maximum weight of each component. Use these weights to estimate the total weight of your system, based on the number of components installed in the cabinet. Record the total weight in an easy-to-find place to reference when checking flooring load or elevator weight restrictions.
This section describes the environmental conditions that are prerequisite to installing Sun Rack cabinets.
TABLE 2-3 lists operating and nonoperating temperature, relative humidity, and altitude ranges for the Sun Rack 1000-38 cabinet.
If you plan to operate a system at an altitude between 3280 ft. to 10,000 ft. (1000 m to 3048 m) above sea level, lower the environmental temperature 3.3°F (1.7°C) for every 3280 ft. (1000 m) above sea level.
TABLE 2-4 lists the acceptable temperatures in which the 6540 controller tray is designed to operate.
lists the acceptable humidity ranges in which the 6540 controller tray is designed to operate.
Cabinet airflow is from front to back. Allow at least 30 inches (76.2 cm) in front of the cabinet, and at least 24 (60.96 cm) inches behind the cabinet, for service clearance, proper ventilation, and heat dissipation.
The AC power sources must provide the correct voltage, current, and frequency specified on the component model and serial number label. The cabinet can run within the limits shown in TABLE 2-6.
All components in the cabinet should operate on only two of the 20A circuits (16A loaded each), but in this case no AC redundancy would be in place (power only A0/A1 or B0/B1).
With all four 20A circuits powered (A0, A1, B0, B1), the cabinet will draw a maximum total of 32A from the four circuits. If the system were to draw more than that 32A, then full AC redundancy cannot be present.
The Sun Rack 1000-38 cabinet power distribution systems work at 180-264VAC only. Internal components will never be operated below 180V (200V nominal) when in this cabinet.