Greenheck Fan Grease Grabber H2O Auto-Cleaning Hood GGH20 - Manual (Page 25)

25 Model GGH2O
®
Maintenance
Capture Tank
The interior surfaces of the hood capture tank should
be wiped down weekly.
Filters
The Grease Grabber filters (bead filters) require
visually inspection (not removed from hood) two
weeks after start-up, then once a month thereafter to
make certain the filters are positioned correctly in the
plenum. Positioned correctly means there are no gaps
between the filters.
To inspect the bead filters, remove the fasteners
holding the access doors; each door has five (5)
fasteners. Remove every other door to inspect the
filters.
After inspecting the filters, put the access doors
back on and put the fasteners back in. Be careful not
to over-tighten or cross thread the fasteners when
putting them back in.
The Grease Grabber filters
(bead filters) need to be
removed from the hood
once every three months to
visually inspect and ensure
the filters are structurally
sound.
Remove all the doors
and remove the filters for
inspection. Depending on
the equipment under the
hood, it will probably be
easier to remove the filters
from the right side of each
hood. Slide the other filters
down to the end access
door for removal.
After inspecting the filters,
place them back in the
hood. Be careful to install
the filters with the handles
up and make sure not to
hit the fire detection line
when removing or installing
the filters. Ensure no gaps
are between filters after
installation.
If any filter appears damaged, consult factory for
replacement.
Floats
The floats need to be
inspected two weeks after
start-up and then once a
month thereafter.
The float can be inspected
by first turning the
disconnect switch on the
control cabinet to the ‘OFF’
position. Then remove the
large access panel door.
Once the access panel
is removed, you will have
access to the floats.
Slide each float (Low Float,
High Float and Safety Float)
up the stem to its stop with
your finger and let go. If float
slides freely down the stem
with minimal resistance, the
float is operating as it should.
Put the access panel back
on and turn the disconnect
switch to the ‘ON’ position.
If the float does not slide
freely down the stem, the
stem and floats are dirty
and need to be wiped off with a clean cloth. Cleaning
the stem involves removing all the clips (stops). Slide
floats up and down on the shaft as required to access
and clean the entire length of the shaft. Return floats
to their location and reinstall stops.
Make sure all float stops are securely located in their
grooves and floats are located in their designated
spots.
If for some reason the floats
get taken off the stem, the
stamped circle on the top
side of the float needs to
face up.
Access Panel Door
Safety Float
High Float
Low Float
NOTE
Be careful when handling the float stops. These are
small clips and can easily be dropped. If you loose
one of these clips, consult factory for a replacement.
Float Installed