Hood Cleaning And Maintenance; Monthly Hood Interlock Inspection - GILES FSH-4 Hood Operation & Service Manual

Model: FSH-4 Hood
5. Hood Cleaning & Maintenance
This Section describes the steps to generally maintain and clean the FSH-4 Hood. Attention to these procedures will
help ensure the Hood remains in satisfactory operating condition and continues to run efficiently and safely.
A Maintenance & Service Log is provided, see Section 5.04.
5.01 Monthly Hood Interlock Inspection (Can be Performed by User)
The Hood design incorporates various interlock switches to ensure that the unit will shutdown if certain conditions exist
that are not consistent with safe and effective operation. The interlocks should be tested MONTHLY as described
below. Use the Maintenance & Service Log to record completion of testing. If problems are detected, contact GILES
or an authorized service provider. NOTE: Anytime a filter access door is opened and closed, the hood must be
restarted as described in Section 4.01.
Door Interlock Test: Start hood. With hood running, unlatch and slightly open each access doors, one at a
1.
time. With each side confirm that hood powers OFF when opened and appliances under the hood cannot be
turned ON.
2. Baffle Filter Test: Remove the baffle filter from one side, then start hood. Verify that the red [BAFFLE OR
CHARCOAL FILTER MISSING] light turns ON and the [APPLIANCE POWERED] light turns OFF. Check to
ensure that appliances under Hood will not turn ON. Replace filter and repeat test with the other side's
filter. See Sections 4.02.2 & 4.02.3, Removal & Installation.
3. Pre-Filter/Charcoal Filter Test: Same procedure as #2 except perform for each pre-filter and charcoal filter,
one at a time in succession. Reinstall the filters. See Sections 4.02.4, 4.02.5, 4.02.8 & 4.02.9, Removal &
Installation.
3. E.A.C. Filter Test: Remove one of the E.A.C. collector cells, close and latch door, then start hood. Verify that
[WASH] light on E.A.C. Status comes ON for the side without cell and that the amber [APPLIANCE
POWERED] light is also ON. Wait approx. two (2) minutes. A beeping tone alarm should begin sounding. In
several seconds the [APPLIANCE POWERED] light should turn OFF. Check to ensure that appliances under
hood cannot be turned ON. Turn off hood, reinstall cell, and repeat for other side. See Section 4.02.6. &
4.02.7, Removal & Installation.
5. Filter Clogged Test: Perform this test ONLY after installing new charcoal filters. Start hood normally and
allow to run. Use cardboard, or other suitable material, to completely block the hood exhaust outlet,
holding it firmly in place so that no air is escaping. Within a few seconds, a continuous tone alarm should
begin sounding. The red [BAFFLE OR CHARCOAL FILTER CLOGGED] light should turn ON and the [APPLIANCE
POWERED] light should turn OFF. Check to ensure that appliances under hood cannot be turned ON.
Remove the obstruction; the alarm should silence and the [APPLIANCE POWERED] light should turn ON
again.
Should any of these tests fail to yield the described results, contact a factory-authorized service company and have
the unit evaluated and repaired. A Giles Manufacturer's Representative can provide information about nearby
authorized service providers, or call GILES Services at 800-554-4537 for assistance.
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Hood Cleaning & Maintenance