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11.5
Filter change procedure
1 Switch off the Enable and Run signals.
2 Isolate battery supply.
3 Isolate hydrogen supply.
4 Wait 15 minutes.
5 Use a 4mm allen key to remove two screws from the frame on the front of
FCM-801 (see Section 3 – Parts of FCM-801).
6 Pull bottom of frame forward and it will drop down.
7 The dirty filter can be pulled out.
8 Discard dirty filter.
9 Place clean filter in front of FCM-801 and refit frame and screws.
Do not touch or create a short in the fuel cell stack during this procedure
as it may be live (fuel cell stack will have voltage present even after it has
been switched off). This is a high current electrical hazard.
Fuel cell not operating
or derated?
Is the max load
within the fuel cells
specification?
What is the cause of
the high load? Contact
IE Product Support
Team to discuss
Provide the ambient
temperature and
humidity for the fuel
cell and contact IE
Product Support Team
Replace filter
Is the temperature in the
specification range?
Does the air inlet filter
look choked?
Restart fuel cell and
monitor
yes
yes
no
no
no
yes
11.4
Stack temperature check procedure
Warning:
Troubleshooting guide
11