our system dosent allow ammonia to leak outside of its self contained system. There is a warning system built into the truck that detects the slightest bit of ammonia and then shuts the system completely down. the truck can be driven on the electric system to an outside area if working indoors or to a certain area out side where the power pack can be exchanged and taken away for repair. An exchange unit is fitted allowing the truck to be back in service in under 4 four of the warning system
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