CAUTION!
— This symbol means
important instructions. Failure to heed them can result
in injury or material property damage.
2. Installation
2.1 Location
SAKURA Dry-boy is designed to be installed indoorss and is ideal for
unfinished and finished basements.
CAUTION!
• Installation outdoors, or near a pool or spa will void
factory warranty.
•
2.1A In humid area, no ducting.
The simplest installation is to place SAKURA Dry-boy in the humid
area with no ducting. The air inlet on top & outlet on the side
must be at least 1’ from walls and other obstructions to air
flow.
2.1B In humid area, duct inlet and/or outlet.
If the humid area is very large or has high ceilings,
dehumidification can be improved by adding an inlet and/or
outlet duct to circulate and destratify stagnant areas. For a
large area, add inlet or outlet ducting to create flow across the
area’s greatest length. For areas with ceilings higher than 12’,
use an inlet duct to draw warm, moist air from near the ceiling.
See section 2.4 for attaching duct collars & ducting.
2.1C In A Remote Area, Duct Inlet & Outlet.
It is often desirable, in finished areas, to install SAKURA Dry-boy
in an adjacent equipment room or unfinished area. Air is
transferred between the humid room and the unit via ducting.
The factory-mounted humidity control on SAKURA Dry-boy
cabinet will sense the humidity in the humid room accurately
enough with this installation method.
2.1D In A Remote Area, Duct Outlet Only.
A simpler remote installation method than above uses ducting
between SAKURA Dry-boy discharge and the humid room;
SAKURA Dry-boy inlet draws air from the room in which it’s located.
This works well if there is an adequate air flow path between the
two rooms; i.e. high door undercut, louvered door or wall grill.
There are several potential disadvantages to using this method.
First, humid air is drawn into the room where SAKURA Dry-boy is
located. Second, to accurately sense humidity, the blower in
SAKURA Dry-boy may need to run continuously to draw air from the
humid room into SAKURA Dry-boy room. Third, a slight negative
pressure is created in the room with SAKURA Dry-boy which could
backdraft open combustion devices located there. If such devices
are present, call the factory for specific instructions before using
this installation method or consider the option 2.1E below.
2.1E In A Remote Area, Duct Inlet Only.
When SAKURA Dry-boy is located in a room separate from the
main area to be dehumidified, it may be desirable to dehumidify
and/or slightly pressurize that room. Pressurization assures
that open combustion devices do not backdraft . This can be
accomplished by installing a duct from the humid room to
SAKURA Dry-boy inlet and by allowing SAKURA Dry-boy to discharge
dehumidified air into the room in which it’s located. An
adequate air flow path must exist between the two rooms for
this method to work well.
2.2 Electrical Requirements
SAKURA Dry-boy plugs into a common grounded outlet on a 15 Amp
circuit. It draws between 6 and 7 Amps under normal operating
conditions.
2.3 Condensate Removal
Condensate drains by gravity via the clear hose extending from
the unit. Route hose to a floor drain, sump pump, or drainage
system. Use care to keep the hose as flat to the floor as possible.
Excessive humps or kinks will prevent proper drainage.
If SAKURA Dry-boy is located too far from a floor drain for the
attached hose to reach, 1/2" PVC pipe can be used to extend
it. It is commonly available in 10’ lengths from building supply,
plumbing and hardware stores. It will slide tightly inside the end of
the drain hose.
If more than one length of pipe is required, they can be joined with
a short piece cut from the end of the drain hose.
2.4 Ducting
2.4A Optional Ducting
An inlet shroud with an 8" round collar and an 8" round
exhaust collar are available from the factory that will allow
round ducting to be attached to the inlet and/or outlet of
SAKURA Dry-boy
2.4B Ducting for Dehumidification
Ducting SAKURA Dry-boy as mentioned in sections 2.1B-2.1E
requires consideration of the following points:
Duct Sizing: For total duct lengths up to 25 feet, use a
minimum 8" diameter round or equivalent rectangular. For
longer lengths, use a minimum 10" diameter or equivalent.
Grills or diffusers on the duct ends must not excessively restrict
air flow. Isolated Areas: Effective dehumidification may require
that ducting be branched to isolated, stagnant areas. Use 6"
diameter branch ducting to each of two or three areas, use 4"
to each of four or more areas.
3. Dehumidifier Operation
3.1 Humidity Control
The dehumidifier will run continuously until relative humidity
(RH) is reduced to the desired humidity level using the electronic
controlller. Setting the electronic humidity controller to lower RH
levels will NOT increase the unit’s dehumidification rate - it will
simply run longer to reduce the area’s RH to the setting.
SAKURA Dry-boy unit (and refrigerant based dehumidifiers in general)
will reduce a warm space’s RH to a lower level than that of a cool
space. For example, SAKURA Dry-boy may reduce an 80° F space to
30% RH. However, if the same space is 65° F, it may only reduce
it to 40% RH. It is therefore pointless to set the electronic humidity
INSTALLER'S AND OWNER'S MANUAL
3
Installer’s & Owner’s Manual
