Chapter 10 Install and System Administration for FortiOS 5.0 : Best practices : Hardware : Environmental specifications
  
Environmental specifications
Keep the following environmental specifications in mind when installing and setting up your FortiGate unit.
Operating temperature: 32 to 104°F (0 to 40°C) (temperatures may vary, depending on the FortiGate model)
If you install the FortiGate unit in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient temperature. Therefore, make sure to install the equipment in an environment compatible with the manufacturer's maximum rated ambient temperature.
Storage temperature: -13 to 158°F (-25 to 70°C) (temperatures may vary, depending on the FortiGate model)
Humidity: 5 to 90% non-condensing
Air flow - For rack installation, make sure that the amount of air flow required for safe operation of the equipment is not compromised.
For free-standing installation, make sure that the appliance has at least 1.5 in. (3.75 cm) of clearance on each side to allow for adequate air flow and cooling.
This device complies with part FCC Class A, Part 15, UL/CUL, C Tick, CE and VCCI. Operation is subject to the following two conditions:
This device may not cause harmful interference, and
This device must accept any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
The equipment compliance with FCC radiation exposure limit set forth for uncontrolled Environment.
 
Risk of Explosion if battery is replaced by an incorrect type. Dispose of used batteries according to the instructions.
To reduce the risk of fire, use only No. 26 AWG or larger UL Listed or CSA Certified Telecommunication Line Cord
See Also
Best practices
Grounding
Rack mount instructions