Ventilation
Ensure that any installation, especially an indoor installation, has adequate airflow to dissipate the station’s
heat at maximum operation. Each charging station emits approximately 3.3 kW of waste heat at maximum
operation.
The station location must allow fresh ambient airflow. Restriction of airflow might result in reduced
maximum performance. Do not install a station where it is exposed to air that is heated above ambient
temperatures.
In addition to the service clearances listed in Clearances, consider these figures for site layout:
l
If a charging station will have a wall directly behind it, minimum rear clearance is 305 mm (12 in).
l
If two Express 280 stations will be positioned back to back, increase the rear clearance to a shared
610 mm (24 in) for both stations to reduce exhaust recirculation.
Accessibility
To meet the accessibility requirements, the Express 280 charging cables are no more than 1220mm (48in)
above ground and no more than 254mm (10in) away.
This complies with American Disability Act (ADA) requirements, if the station is installed at grade. If your
installation must comply with ADA standards, or the disability access regulations for other regions,
consider this when designing the height of the pad or when planning a wall-mounted installation.
Also consider site design factors such as placement of bollards, wheel stops, or other vehicle obstacles
when planning charging station access for disabled parking stalls. Check disability access regulations for
guidance on the clearances needed for wheelchair access to charging cables and user interfaces.
Signage
Refer to local and regional code to design the following elements for the site:
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Any required re-striping of parking spaces
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EV or Accessible EV signs
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EV or Accessible EV paint markings on and around the parking spaces
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