Vehicle fueling appliances (VFA)

General

This Standard details mechanical, physical, and electrical requirements for a newly manufactured non-residential appliance, referred to as a vehicle fueling appliance (VFA), that compresses natural gas for vehicles and dispenses directly into onboard vehicle storage or delivers to external natural gas storage systems.

This Standard applies to appliances that incorporate compression and dispensing in the same appliance.

Notes:

1. Residential fueling appliances (RFA) are addressed in CSA NGV 5.1. 2
2. Devices dedicated only to dispensing fuel into vehicles are addressed in CSA NGV 4.1.

Application

This Standard applies to compressed natural gas vehicle fueling appliances:

a) intended for connection to a natural gas supply source;

b) for outdoor installation or indoor installation;

c) for ambient temperatures not below –40° C (–40°F);

d) for nominal voltage not exceeding 480 volts AC;

e) certified as a system with temperature compensated pressure limits for delivery of fuel for:

i) direct fueling of vehicles;

ii) fueling of vehicles from the systems internal storage;

iii) filling of external natural gas storage systems; or

iv) any combination of the above.

f) with maximum inlet flow rate not exceeding 10 SCFM (17 SCMH);

g) for installation in non-residential occupancies;

h) intended to meet the installation fire safety requirements in accordance with the requirements of the applicable Code;

i) for connection to a single vehicle, multiple vehicles, or storage systems; and

j) intended for installation in non-hazardous locations