Dectron, Inc. March 2012
DSH/DSV/RSH/DBH/RBH Series Dehumidifier Owner’s Manual
T.A.B. Check Blower Rotation
Data subject to change without notice.
192
DECTRON
Prepare to adjust airflow -
CAUTION: Never touch or approach a blower, belts,
or sheaves while the branch circuit is powered.
Personal injury could result.
Some units may have blowers with housings called
“scrolls”. In this case, the blower-wheel rotation should
be as shown here.
Choose the picture at right which appears most like
your blower. Be sure the rotation is as shown.
CAUTION: Never
touch or approach a blower, belts, or
sheaves while the branch circuit is powered.
Personal injury could result.
Some blowers on some units may have plenum blowers,
which do not have scrolls. In this case, compare the tilt of
the vanes on the blower wheel to the diagrams at right. The
direction of rotation should be as shown here.
Airfoil
Backward
Inclined
Forward
Curved
Scroll
Risk of contact with moving parts. Can cause injury or death.
This product contains rotating parts and V-belt drives. Some installation, service, and
maintenance procedures could expose personnel to the risk of injury or death from
contact with these parts.
Using only approved devices (e.g. locking safety switch), disconnect, lockout, and
tagout all sources of electrical energy before working inside the unit cabinet. Allow
adequate time for rotating parts to stop. Follow all applicable safety regulations.
WARNING
Risk of contact with swinging doors. Can cause injury.
Where plenum blowers are present the blower compartment
may be pressurized. Unlocking a door while the blower is
turning could allow the door to swing open violently.
Using only approved devices (e.g. locking safety switch),
disconnect, lockout, and tagout all sources of electrical energy
before working inside the unit cabinet. Allow adequate time for
rotating parts to stop. Follow all applicable safety regulations.
WARNING
T.A.B.
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