18
Installation and set up
10
10.8
Hydrogen fuel physical requirements
The FCM-802/804 requires regulated fuel pressure to feed hydrogen into the cell.
The inlet pressure for operation must be:
500mbar.g to 800mbar.g
The FCM-802/804 will consume less than 70g/kWh at rated power. This is equivalent
to 34sl/min (FCM-802) and 56sl/min (FCM-804) at rated power. It must be noted that
the flow will spike high during hydrogen purges, which, if poorly regulated, can lead
to a low pressure fault of the FCM.
It is required that the external system has an automatic shut-off valve as part of the
hydrogen feed line. This allows the hydrogen to be isolated at source if required.
Hydrogen Connection
Hydrogen connection
The FCM-802/804 requires hydrogen to fuel the electro-chemical reaction.
Connection of the hydrogen fuel will be at the rear of the module. The connection
type is a female G1/8 parallel BSP thread with a face seal, this must be connected
via an appropriate mating connector.
At installation the external hydrogen pipework must be bled of air or inert gas before
operation. The hydrogen pipework must be checked periodically for leaks.
10.7
