Page 15
S6162-BS-MMC-010/12489
G E N E R A L I N S T A L L A T I O N S
The
construction
of
Cissell
Cabinet
Dryers
permits
installation
side
by
side
to
save
space
or
to
provide
a
wall
arrangement.
Position dryer for the least amount of exhaust piping and elbows, and allow free access to the
rear
of
dryer
for
future
servicing
of
belts,
pulleys,
and
motor.
Before operating dryer, open basket door, remove blocking between front panel and basket; remove all tape used
to secure dryer parts during shipment; level dryer; and read all instruction tags, etc.
DRYER AIR FLOW INSTALLATION
Nothing
is
more
important
than
air
flow
for
the
proper
operation
of
a
clothes
dryer.
A dryer is a pump which
draws make-up air from the out-of-doors, through the heater, through the clothes and then forces the air
through the exhaust duct back to the out-of-doors. Just as in a fluid water pump, there must be a fluid air flow
to the inlet of the dryer if there is to be the proper fluid air flow out of the exhaust duct. In summary, there
must be the proper size out-of-doors inlet air opening (4 to 6 times the combined areas of the air outlet) and an
exhaust duct size and length which allows flow through the dryer with no more than 0.3 inches water column
static pressure in the exhaust duct.
CISSELL WILL PROVIDE FREE ENGINEERING ADVICE FOR ANY
SPECIFIED INSTALLATION
In
some
instances,
a
ventilation
system
with
special
fans
are
required
to
supply
make-up
air
and/or
boost
exhaust
fans.
E X H A U S T I N G D U C T
If
needed,
use
adapter
to
increase
8”
dia.
duct
to
12”
dia.
duct.
Vent the 8” dia. exhaust, on rear of dryer, to
atmosphere. Do not reduce duct size. If vent is vertical through through roof, install two elbows on the dis-
charge end forming a “U” looking down; if vent is horizontal through wall, install one elbow on the discharge end
looking down to prevent wind, rain, snow, sleet, etc., from entering duct and flowing down to dryer.
For multiple dryer installations, it is preferable to vent each dryer individually with a
separate duct.
When conditions require the use of a single exhaust duct for several dryers, piping from each dryer should enter
the single duct at an angle of approximately 30°-45°, and in the direction of the air flow. The cross sectional
area of the single exhaust duct should equal the combined areas of the dryer ducts connected to it. Make all
exhaust connections with the least amount of elbows to reduce air resistance to a minimum. Provide cleanout
and inspection openings in the horizontal sections of the duct work and clean periodically. On multiple installa-
tions employing a single exhaust duct, there should be no back draft to interfere with the normal free discharge
of air from each dryer.
Before approving duct installation, place each dryer in operation; progressively open each dryer door, manually
trip door switch, and see that air is drawn into the basket door opening as freely as it is when all other dryers
are
stopped.
Keep the exhaust ducts clean. Do not install wire mesh or screen in the exhaust ducts as lint will build up and
prevent discharge of air from dryers. Keep inside surfaces smooth. Pop rivets are recommended for duct
assembly.
MAKE-UP AIR
If
possible,
provide
opening
to
the
room
where
the
dryer
is
a
minimum
of
2
square
feet
make-up
air
for
each
dryer.
T R O U B L E S H O O T I N G
Scorched
clothes,
slow
drying,
lint
accumulations,
or
air
switch
malfunction
are
indicators
of
exhaust
and/or
make-up
air
problems.
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