Dectron, Inc. March 2012
DECTRON
Owner’s Manual
DSH/DSV/RSH/DBH/RBH Series Dehumidifier
Data subject to change without notice.
99
Refer to AMCA
1
guidelines for system-effect
considerations.
To prevent unexpected reduction of airflow, a
section of the supply duct should be full-sized
and straight as it leaves the blower. This section
should be straight for a distance of at least five
times the blower width. There should be no
elbows, transitions, offsets, turning vanes, duct
heaters, or other flow interruptions closer than
5 X the width (W) of the blower.
NOTE: On special order, Dectron may be able
to provide bottom-, top-, or side-
discharge blowers, and/or reversed
blower rotation. Minimum straight duct
lengths still apply.
NOTE: Minimum straight supply-duct lengths are
not
required for units equipped with
plenum blowers for supply air.
All installations should have space heat available
year-round.
At some sites, the heating requirement may be met by
external duct heaters (by others). To prevent hot spots
and the resulting heater failures, locate the heater at
least 5 times the duct width downstream from the
blower, or from any airflow interruptions such as elbows
and transitions.
On special order, for some models Dectron may be
able to provide special close-coupled duct heaters that
do not require the minimum straight length of duct. The
minimum straight length before an elbow, tee, offset,
transition, or other flow interruption will still apply.
NOTE: The basic DRY-O-TRON® does not
produce
significant heat - it recycles heat. A dedi-
cated space heater must be ordered with
the unit or must
be provided by others. When
ordered with the unit, the heater may be
inside the cabinet.
NOTE: Building heat losses are calculated by
others and consequently space heaters are
sized by others. Dectron does not select
space-heater capacities.
NOTE: Allowing the pool to heat the air may cause
the pool-water evaporation rate to increase
drastically.
Supply Duct Near Unit
Duct Isolator
Duct Isolator
5 X WIDTH
5 X WIDTH
WIDTH
WIDTH
Duct Isolator
Elbow, tee, etc.
Duct Heater
(by others)
Duct Heater
(by others)
VERTICAL
UNIT
HORIZONTAL
UNIT
1. Air Movement and Control Association International, Inc.
30 West University Drive
Arlington Heights, Illinois 60004-1893
Supply Duct Ducts Installation
Sample
Actual appearance
may vary.
Sample
Appearance may vary.
Sample
Appearance may vary.
INSTALLATION
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