Dectron, Inc. March 2012
Owner’s Manual
DSH/DSV/RSH/DBH/RBH Series Dehumidifier
Data subject to change without notice.
95
Return Duct Ducts Installation
Risk of property damage.
NOTE: If it is to be used as a natatorium dehumidifier,
do not
install a dehumidifier in a return-air plenum
room. Corrosive chemicals in the air may shorten the
life of the electrical components.
If a plenum room is absolutely necessary, the user
should carefully maintain pool-water chemistry.
Chemicals should never
be stored in a plenum room,
or any room containing mechanical or electrical
equipment. Outdoor air should never
enter a plenum
room.
NOTE: Where ducts are to be insulated, use only
moisture-resistant insulation. High moisture levels can
cause failure of fiber adhesives.
NOTE: Do not
install a duct heater in the return duct.
NOTE: Do not
allow any air other than room air to enter
the return duct. Do not
allow outdoor air or air mixed
with outdoor air to enter the return duct.
NOTE: Poor return-duct design can prevent proper
dehumidification by causing uneven air distribution over
the evaporator. Reduced capacity and/or equipment
damage may result.
IMPORTANT!
Allow straight length in the return duct as shown.
This straight length must be the same size as the
connection on the unit. There should be no elbows,
transitions, offsets, or other flow interruptions closer than
2.5 X WIDTH of the return-duct opening.
If turning vanes are not used in elbows, allow a length
of straight duct equal to at least 5 X WIDTH.
NOTE: For units with return-plenum boxes, the minimum
straight length for the return duct is five times the
lesser dimension of the return-duct connection.
See Product Description - Available Air
Connections.
IMPORTANT!
Do not connect an outdoor-air intake to the return
duct. Do not allow outdoor air to mix with return air.
IMPORTANT!
Temporarily cover the return grille with paper or
plastic to prevent concrete or plaster dust from
entering the return duct. This cover should be
removed after all such dusts have been cleaned up
and removed.
DECTRON
Turning Vanes
DUCT
ISOLATOR
Sample
Appearance
may vary.
Sample
Appearance may vary.
Horizontal Units
INSTALLATION
Risk of carbon-monoxide poisoning.
Can cause death.
WARNING
Never install an unducted unit in the same space with combustion equipment. The
resulting low room pressure could cause flue downdrafts.
NOTICE
To Next Page
Loading...
Need help?
General
