Verifying Requirements

Prior to installing the rack, verify the space, access route, power, grounding, and air flow requirements of the Sun Rack II cabinet.

Size and Space Requirements

Use the following sections to determine the space requirements for your rack.

Packaging Dimensions

You can order the Sun Rack II in either standard or enterprise packaging. See the following table for these packaging dimensions. Also, see Differences Between Standard and Enterprise Packaging for more information about these packaging options.

Table 1-1 Sun Rack II Packaging Dimensions

Package Dimension	Sun Rack II 1042 Standard Packaging	Sun Rack II 1242 Standard Packaging	Sun Rack II 1042E & 1242E Enterprise Packaging
Shipping height	2145 mm / 84.5 in.	2145 mm / 84.5 in.	2159 mm / 85.0 in.
Shipping width	770 mm / 30.31 in.	770 mm / 30.31 in.	1219 mm / 48.0 in.
Shipping depth	1110 mm / 43.7 in.	1125 mm / 44.29 in.	1575 mm / 62.0 in.
Shipping weight	Varies by configuration	Varies by configuration	Varies by configuration
Shipping weight of packaging	Approx. 31 Kg / 68.34 lbs	Approx. 31 Kg / 68.34 lbs	120.20 Kg / 265 lbs

Sun Rack II 1042 Dimensions

Table 1-2 Sun Rack II 1042 Dimensions

Dimension	Measurement
Height	1998 mm / 78.66 in.
Width	600 mm / 23.62 in.
Depth (front door handle to rear door handle)	1058.2 mm / 41.66 in.
Depth (doors removed)	970.2 mm / 38.20 in.
Weight (empty)	123.4 Kg / 272.0 lbs
Rack units (RU)	42 RU (1867 mm / 73.5 in.)
Depth between front and rear RETMA rails	685.8 mm / 27 in. Adjustable from 615.8 mm (24.24 in.) to 825.8 mm (32.5 in.)
Note - Adjusting the RETMA rails can make the rack less stable. If you adjust the RETMA rails, always install the equipment after you place the rack at the installation site. Do not move the rack after installing the equipment.

Table 1-3 Sun Rack II 1042 Nominal Weight and Space Requirements

Dimension	Measurement
Maximum allowable weight of installed rack equipment	952.54 Kg / 2100 lbs (average of 22.7 Kg / 50 lbs per RU)
Maximum allowable weight of installed power distribution units	52.16 Kg / 115 lbs
Maximum dynamic load (maximum allowable weight of installed equipment plus PDUs)	1004.71 Kg / 2215 lbs
Maintenance access requirement for rear	914.4 mm / 36 in.
Maintenance access requirement from top	914.4 mm / 36 in.
Airflow requirement for left and right sides	None (front-to-back cooling)

Figure 1-1 Sun Rack II 1042 Top and Front Dimensions

image:Figure showing the top and front dimensions of the Sun Rack II 1042.

Figure Legend

1 dimensionsdepth1042Depth from front door handle to rear door handle – 1058.2 mm / 41.66 in.

2 Distance from rear of rack to opened rear door – 590 mm / 23.23 in.

3 Depth with doors removed – 970.2 mm / 38.20 in.

4 Distance from front of rack to opened front door – 638 mm / 25.12 in.

5 Depth with doors opened – 2204.2 mm / 86.78 in.

6 dimensionswidth1042Width – 600 mm / 23.62 in.

7 dimensionsheight1042Height – 1998 mm / 78.66 in.

Note - In Sun Rack II 1042 Top and Front Dimensions, the datum point symbol image:datum point icon denotes the outside edge of the door handles.

Sun Rack II 1242 Dimensions

Table 1-4 Sun Rack II 1242 Dimensions

Dimension	Measurement
Height	1998 mm / 78.66 in.
Width	600 mm / 23.62 in.
Depth (front door handle to rear door handle)	1200 mm / 47.24 in.
Depth (doors removed)	1112 mm / 43.78 in.
Weight (empty)	150.59 Kg / 332 lbs
Rack units (RU)	42 RU (1867 mm / 73.5 in.)
Depth between front and rear RETMA rails	685.8 mm / 27 in. Adjustable from 615.8 mm (24.24 in.) to 825.8 mm (32.5 in.)
Note - Adjusting the RETMA rails can make the rack less stable. If you adjust the RETMA rails, always install the equipment after you place the rack at the installation site. Do not move the rack after installing the equipment.

Table 1-5 Sun Rack II 1242 Nominal Weight and Space Requirements

Dimension	Measurement
Maximum allowable weight of installed rack equipment	952.54 Kg / 2100 lbs (average of 22.7 Kg / 50 lbs per RU)
Maximum allowable weight of installed power distribution units	52.16 Kg / 115 lbs
Maximum dynamic load (maximum allowable weight of installed equipment plus PDUs)	1004.71 Kg / 2215 lbs
Maintenance access requirement for rear	914 mm / 36 in.
Maintenance access requirement from top	914 mm / 36 in.
Airflow requirement for left and right sides	None (front-to-back cooling)

Figure 1-2 Sun Rack II 1242 Top and Front Dimensions

image:Figure showing the top and front dimensions of the Sun Rack II 1242.

Figure Legend

1 dimensionsdepth1242Depth from front door handle to rear door handle – 1200 mm / 47.24 in.

2 Distance from rear of rack to opened rear door – 590 mm / 23.23 in.

3 Depth with doors removed – 1112 mm / 43.78 in.

4 Distance from front of rack to opened front door – 638 mm / 25.12 in.

5 Depth with doors opened – 2340 mm / 92.1 in.

6 dimensionswidth1242Width – 600 mm / 23.62 in.

7 dimensionsheight1242Height – 1998 mm / 78.66 in.

Note - In Sun Rack II 1242 Top and Front Dimensions, the datum point symbol image:datum point icon denotes the outside edge of the door handles.

Access Route Guidelines

If your existing loading dock meets height or ramp requirements for a standard freight carrier truck, you can use a pallet jack to unload the rack. If not, you must provide a standard forklift or other means to unload the rack, or request the rack be shipped in a truck with a lift gate.

Leave the rack in its shipping packaging until it reaches its final destination. The entire access route to the installation site should be free of raised patterns that can cause vibration, and the route must meet the requirements listed in Access Route Requirements.

Table 1-6 Access Route Requirements

	With Shipping Pallet	Without Shipping Pallet
Minimum door height	2184 mm / 86 in.	2000 mm / 78.74 in.
Minimum door width	1220 mm / 48 in.	600 mm / 23.62 in.
Minimum elevator depth	1575 mm / 62 in.	1200 mm / 47.24 in. (for the Sun Rack II 1242) 1058.2 mm / 41.66 in. (for the Sun Rack II 1042)
Maximum incline	6°	6°

Minimum elevator, pallet jack, and floor loading capacity (maximum weight per rack)	1134 Kg / 2500 lbs maximum weight of rack with full capacity. Verify weight capacities of elevators and shipping equipment before using them to transport rack.

Power Requirements

Refer to the Sun Rack II Power Distribution Units User’s Guide for information about the power requirements for the power distribution units.

Grounding Requirements

For proper operation and safety, all powered rackmounted equipment must be properly grounded. All power distribution units, branch wiring, and receptacles must be listed as grounding-type devices. Connect each component and power distribution unit into reliably grounded outlets.

Caution - To reduce the risk of electric shock or damage to installed equipment, never disable the grounding plug on any power cord.

For additional grounding, attach an earth ground cable to the rack. See Attaching an Optional Ground Cable for instructions.

Airflow Requirements

Rackmountable servers and equipment typically draw cool air in through the front of the rack and exhaust warm air out through the rear of the rack. Always provide adequate space in front of and behind the rack to allow for proper ventilation. Do not obstruct the front or rear of the rack with equipment that might prevent air from flowing through the rack.

Note - Servers and equipment installed in the rack might have specific thermal distance requirements, which is the distance between the front and rear of the equipment and any obstructions or walls. Refer to the equipment documentation for these thermal distance requirements and for any specific air flow requirements.

If the rack is not completely filled with components, the remaining gaps between the components can adversely affect the air flow and cooling within the rack. Cover these gaps with filler panels. See Install Filler Panels for installation instructions.

Electrostatic Discharge Prevention

Take measures to prevent static electricity from being generated at the installation location. Discharging static electricity from a finger or another conductor might damage static-sensitive equipment installed in the rack.

To prevent electrostatic discharge:

Keep electrostatic-sensitive equipment in their antistatic packaging until they are installed in the rack.
Always wear an antistatic wrist strap whenever installing or servicing rack equipment (see Attach an Antistatic Wrist Strap).
Attach a chassis ground cable to the rack (for instructions, see Attaching an Optional Ground Cable).

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	Sun Rack II User’s Guide