Sakura Dry-Boy SDB-45 User manual

SAKURA Basement Air System
(for Basement / Crawlspace Dehumidification)
Installer’s & Owner’s Manual
High Efficiency Dehumidifier
Dry-Boy
Model: SDB-45

INSTALLER'S AND OWNER'S MANUAL
2Installer’s & Owner’s Manual
Table of Contents
Precautions ............................................................................... 1
1. Intended Application .............................................................. 2
2. Registrations ......................................................................... 2
3. Specifications ........................................................................ 3
4. Unit Assembly ........................................................................ 3
4.1 Installing Feet .................................................................... 3
4.2 Attaching Drain Hose .......................................................... 3
5. Installation ............................................................................. 3
5.1 Location ............................................................................. 3
5.2 Electrical Requirements ..................................................... 4
5.3 Condensate (Water) Removal ............................................. 4
6. Operation ............................................................................... 4
6.1 Humidity Control Adjustment .............................................. 4
6.2 Defrost Cycle ..................................................................... 4
6.3 Blower (Fan) Switch ........................................................... 4
7. Maintenance .......................................................................... 5
7.1 Air Filter ............................................................................. 5
7.2 Cleaning and Replacement ................................................ 5
7.3 Removing Filters ................................................................ 5
7.4 Installing Filters .................................................................. 5
8. Service .................................................................................. 5
8.1 Technical Description ......................................................... 5
8.2 Troubleshooting ................................................................. 6
9. Accessory/Replacement Parts ................................................ 6
Condensate Pump Kit ................................................................. 7
Duct Kit Assembly ....................................................................... 9
Warranty .................................................................................. 11
Precautions
• Do not operate the unit with a cut or frayed power cord.
• Do not unplug the unit by pulling on the cord. Grasp the plug
firmly and pull it out of the wall socket or power receptacle.
• Always use a grounded outlet.
• Never operate electrical equipment near or in standing water.
• Do not stick your fingers or other objects through the safety grills.
• Do not restrict airflow into or out of the unit. This may cause the
unit to overheat.
• Unit should never be serviced or cleaned while it is plugged in.
• Do not sit or stand on the unit or use as a shelf or table.
• Before leavingSAKURA Dry-Boy unattended, ensure children
do not have access to the equipment. Do not allow children to
play with or near the unit or in its air flow.
• SAKURA Dry-Boy is designed to be installed indoors only.
Read the installation, operation and maintenance instructions
carefully before installing and using this unit. Proper adherence to
these instructions is essential to obtain maximum benefit from your
SAKURA Dry-Boy dehumidifier.
Read and Save These Instructions
WARNING! — This symbol means important
instructions. Failure to heed them can result in serious
injury or death.
CAUTION! — This symbol means important
instructions. Failure to heed them can result in injury or
material property damage.
1. Intended Application
SAKURA Dry-Boy is intended for installation in crawl spaces
or basements that experience short or long-term high humidity
conditions; however, the attractively designed unit can be placed in
almost any residential setting where dehumidification is desired. Use
in non-residential applications and pool areas will void warranty.
SAKURA Dry-Boy is designed to operate in temperatures
between 56° and 95°F. Temperatures outside of these ranges may
affect dehumidifier performance.
In order to efficiently control the humidity levels, the area in which the
dehumidifier is to be placed must be free of water intrusion or excessive
fresh (outside) air infiltration. Before installing SAKURA Dry-Boy
water intrusion and air infiltration problems should be addressed.
3. Specifications
Model: SDB-45
Blower: 240 CFM @ 0.0" WG
Power: 700 watts @ 80°F and 60% RH
Supply Voltage: 115 volt – 1phase – 60 Hz
Current Draw: 5.9 Amps
Energy Factor: 2.60 L/kWh
Operating Temp.: 45°F Min., 95°F Max.
Sized for: 2200 Sq. Ft. - Typical
Miniumum Performance at 80°F and 60% RH
Water Removal: 90 Pints/Day
Efficiency: 5.5 Pints/kWh
Air Filter: MERV-11
Efficiency: Standard 65% Efficient, ASHRAE Dust Spot Test
Size: Size: 12" x 12" x 1"
Power Cord: 9', 110-120 VAC, Ground
Drain Connection: 5/8" hose barb or 3/4" FPT
Drain Hose: 5/8 " ID x 8' Direct Gravity Drain Hose
Dimensions Unit with Duct Kit: Shipping
Width: 14-1/2 " 14-1/2 " 22"
Height: 19" w/o feet 22-1/4 " w/o feet 25"
Depth: 33" 40-3/8 " 39"
Weight: 71 lbs 78-1/2 lbs
※ 50 Hz version is available upon request.

SANTA FE ADVANCE INSTALLER'S AND OWNER'S MANUAL
3Installer’s & Owner’s Manual
4. Unit Assembly
4.1 Installing Feet (Optional)
Included with your SAKURA Dry-Boy
are four leveling feet. It
is important to level the unit for
proper draining. (See section
5.1.4, Figure 6)
Installing Leveling Feet
See Figures 2 and 2a for installing leveling feet.
1. Lay down a protective pad (pillow, blanket, etc.).
2. Carefully turn unit onto side opposite filter opening and drain
port.
3. Align leveling foot shaft with one of the four threaded hole
locations as shown in Figure 2.
4. Screw each leveling foot in ten revolutions.
5. Carefully bring unit to upright position.
6. Level unit for proper drainage as described in section 5.1.4
(Figure 6) of this manual.
7. Wait 10 minutes before operating.
CAUTION!
Note: Operating the unit immediately after bringing it to an upright
position can possibly damage the compressor. A short amount
of time is needed to allow the oil to return to it’s reservoir for
lubrication.
4.2 Drain Hose
Take drain hose off of drain port. With scissors, cut one inch off of
hose end to eliminate dented area. Place drain hose end on drain
port until fully seated. Refer to Section 5.1.4 regarding proper
drainage.
5. Installation
5.1 Location
SAKURA Dry-Boy can be installed in a variety oflocations to
meet the owner’s needs, but should beinstalled directly in the area
to be dehumidified. Other considerations include:
1. Providing access to a 115 VAC power outlet (10' power cord
is provided).
2. Locating near a floor or other suitable drain (8' drain hose
included).
3. Do not install SAKURA Dry-Boy with the intake or
exhaust of the unit within 1' of a wall or other obstruction.
Do not place the unit where curtains or debris can be
drawn onto the intake and restrict airflow. Do not operate in
standing water or place the unit near open water. Refer to
Figure 5.
4. SAKURA Dry-Boy drains via a gravity system. A level
indicator has been included near the intake of the unit.
To ensure the unit will drain properly, the unit should be
positioned so the level bubble appears in the non-shaded
area of the level indicator as shown. Refer to Figure 6. If
the unit is placed on an unlevel surface, adjust leveling feet
using a crescent wrench or 7/16" open wrench. Move handle
end of wrench from left to right to lower one foot. Adjust all
four feet underneath the unit until bubble in the level dial is
in the correct position. Failure to level the unit may result
in leakage or improper drainage. See Section 4.2 regarding
drain hose installation.
Figure 2: Insert leveling feet in
locations
Figure 2a: Screw each leveling
foot in ten revolutions
Figure 1: Four leveling feet
Figure 3: Drain port Figure 2a: Drain hose position
Figure 5: Installing SAKURA Dry-Boy in area with proper clearance.
Figure 6: Level bubble should be in indicator area for proper drainage.

INSTALLER'S AND OWNER'S MANUAL
4Installer’s & Owner’s Manual
5.2 Electrical Requirements
SAKURA Dry-Boy plugs into a common grounded outlet on a
15-Amp circuit. While operating, it draws less than 7 amps @ 80°F,
60% RH and less than 6 amps @ 75°F, 50% RH. Use of a ground
fault circuit interrupter (GFCI) protected circuit is recommended.
The unit should not be used in areas prone to flooding.
5.3 Condensate (Water) Removal
The Santa Fe Advance drains via a gravity system - it is not able
to push condensate (water) uphill. The drain hose must run flat or
downhill toward the drain location. Be sure the hose is not kinked
or otherwise restricted so that water can pass through it. Improper
hose installation may result in water leakage.
To increase the efficiency of the unit, position the hose to create a
“trap” as shown in Figure 8. By creating a trap, it will hold a small
amount of water. Position the trap on the hose approximately 12" to
20" away from the unit. Check hose regularly to ensure it is clear and
water is draining properly.
If floor drain is not easily accessible, a condensate pump kit with a
20' hose is available. Refer to page 5 for ordering accessories.
6. Operation
6.1 Humidity Control Adjustment
The humidity control is an adjustable switch that turns the
dehumidifier on and off. It turns on when the relative humidity of
the air in which it is located rises to the dial set point. It turns off
when the RH drops 5% below the set point.
Approximate Humidity Levels Per Setting
“Dry” 35% to 45% Relative Humidity
“Normal” 45% to 55% Relative Humidity
(Recommended for most applications)
“Humid” 55% to 65% Relative Humidity
The dehumidifier will run continuously until the relative humidity
(RH) is reduced to the humidity control dial setting. There is no
benefit to setting the humidity control to “dry” in rooms under 65°;
doing so will result in long periods of ineffective dehumidifier run
time.
Once the dial has been set to the desired level of humidity control,
SAKURA Dry-Boy will maintain the same percentage of relative
humidity regardless of room temperature.
To turn the unit off, position the humidity dial to the far left and set
fan control to “auto.”
6.2 Defrost Cycle
An automatic defrost thermostat is attached to the refrigerant
tubes inside the unit. It will automatically shut the compressor
off if excessive frost forms on the evaporator coil. The blower
will continue to run, causing air to flow through the evaporator
coil and melt the ice. When the ice has melted, the evaporator
temperature will rise and the thermostat will automatically restart
the compressor. During this process, cool air may be coming out of
the unit.
6.3 Electrical Requirements
Turning the fan switch “FAN ON” will
cause the unit’s internal blower to
run continuously, whether the unit is
dehumidifying or not. This function
is desirable if the unit is used for air
circulation or filtration. Turning the fan
switch to “FAN AUTO” will cause the unit’s
internal blower to run only while the unit is dehumidifying.
FAN
ON
FAN
AUTO
FAN
ON
FAN
AUTO

INSTALLER'S AND OWNER'S MANUAL
5Installer’s & Owner’s Manual
7. Maintenance
CAUTION!
NOTE: Do not operate the unit without the proper filter or with
a less effective filter. The heat exchange coils inside the unit
could become clogged, resulting in a loss of effectiveness
and/or efficiency and may require disassembly to clean.
7.1 Air Filter
SAKURA Dry-Boy ships with a standard MERV-11 65%
1" pleated fabric filter and a 1/4" aluminum framed pre-filter
installed. Operating the unit with a dirty or obstructed filter will
reduce dehumidifier capacity and efficiency and may cause the
compressor to cycle on and off unnecessarily.
7.2 Cleaning & Replacement
Check filters every six months. Clean and/or replace when filters are
visibly dirty. See cleaning instructions below.
The 1/4" washable pre-filter
should not to be discarded.
Inspect the pre-filter for debris,
dirt, or other obstructions at
the same time the 1" pleated
fabric filter is checked. Wash the
1/4" pre-filter every time the 1"
pleated fabric filter is replaced. To
clean the 1/4" pre-filter, remove
filter from the unit, rinse the 1/4"
pre-filter in water with the water
flowing through the aluminum
support mesh side. Refer to
Figure 11. Allow the filter to dry
completely before reinstalling.
Reinstall the filters per the
instructions below or on the tag
located on the 1/4" pre-filter.
CAUTION!
NOTE: Failure to follow filter handling instructions may result
in improper function of the dehumidifier and cause premature
filter wear.
7.3 Remove Filters
1. Gently remove the 1/4" pre-filter by pulling on the tab
attached to the filter.
2. Gently remove the 1" pleated fabric filter by pulling it out
of the unit.
7.4 Installing Filters
1. Gently slide 1" pleated filter into filter slot. Do not force.
If resistance is felt, check alignment for obstructions or
debris inside the filter housing.
2. Gently slide 1/4" pre-filter to left of 1" pleated filter.
Do not force. If resistance is felt, check alignment for
obstructions or debris inside the filter housing.
8. Service
WARNING!
Servicing SAKURA Dry-Boy with its high pressure refrigerant
system and high voltage circuitrypresents a health hazard which
could result in death, serious bodily injury, and/or property
damage. Only qualified service people should service this unit.
8.1 Technical Description
SAKURA Dry-Boy uses a refrigeration system similar to an air
conditioner’s to remove heat and moisture from incoming air and
add heat to the air that is discharged. Hot, high pressure refrigerant
Figure 13: refrigeration system.
Figure 14: wiring diagram.

INSTALLER'S AND OWNER'S MANUAL
6Installer’s & Owner’s Manual
gas is routed from the compressor to the condenser coil. The
refrigerant is cooled and condensed by giving up its heat to the
air that is discharged from the dehumidifier. The refrigerant liquid
then passes through capillary tubing which cause the refrigerant
pressure and temperature to drop. It next enters the evaporator coil
where it absorbs heat from the incoming air and evaporates.
The evaporator operates in a flooded condition, which means
that all the evaporator tubes contain liquid refrigerant during
normal operation. A flooded evaporator should maintain constant
pressure and temperature across the entire coil, from inlet to outlet.
The mixture of gas and liquid refrigerant enter the accumulator
after leaving the evaporator coil. The accumulator prevents any
liquid refrigerant from reaching the compressor. The compressor
evacuates the cool refrigerant gas from the accumulator and
compresses it to a high pressure and temperature gas to repeat the
process.
8.2 Troubleshooting
No dehumidification. Neither blower, nor compressor run with fan
switch AUTO.
1 Unit unplugged or no power to outlet, circuit breaker
tripped.
2 Humidity control set to “Humid” setting.
3 Loose connection in internal wiring.
4 Humidity control is defective.
No dehumidification. Compressor does not run but blower runs
with fan switch AUTO and humidity control turned to ON.
1 Defrost thermostat open, ambient temperature too low.
2 Loose connection in compressor circuit.
3 Defective compressor overload.
4 Defective compressor or compressor run capacitor.
Blower runs with fan switch AUTO but compressor
cycles on & off.
1 Low ambient temperature and/or humidity causing unit
to cycle through defrost mode.
2 Defrost thermostat defective.
3 Defective compressor overload.
4 Defective compressor.
Blower does not run with fan switch in either position.
Compressor runs briefly but cycles on and off.
1 Loose connection in blower circuit.
2 Obstruction prevents impeller rotation.
3 Defective blower.
4 Defective blower switch.
Evaporator coil frosted continuously, low dehumidifying capacity.
1 Dirty air filter or air flow restricted.
2 Defrost thermostat loose or defective.
3 Low refrigerant charge.
9. Optional Accessories
4025845 Condensate pump kit
4026055 Duct connection kit
4026607 Leveling casters set (4)
9.1 Replacement Parts
4025568 Pleated Air Filter .88" x 11.75" x 11.75"
4025831 Pre-Filter
4021495 Control Knob
4025577 Hose, PVC, Clear, .625" diameter, 8’ long
4026450 Leveling Feet
4025569 Adapter, .625" Hose x .75" MNPT

7Installer’s & Owner’s Manual
CONDENSATE PUMP INSTALLATION
Note: Before attaching pump assembly, ensure that the dehumidifier has leveling feet installed
on bottom of unit. If your unit has casters, you will need order a set of leveling feet.
These will be needed for additional height. The mounting bracket is not to be used as a
Step 1. Make sure leveling feet are installed.
Step 2. Remove middle top cover screw located on the drain
port side. Do not discard this screw. It will be used to attach the
mounting bracket in the next step.
Step 3. Align mounting bracket of condensate pump with
the dehumidifier screw hole. Reinstall screw that was
removed in step 2.
Step 4. Remove the 7" hose from the plastic bag and
install this hose from the condensate pump onto the
adaptor as indicated. Make sure that the hose fully covers
the adaptor barbs on the unit.
Optional Accessory:
Condensate Pump Kit
You will not need
this hose adaptor.
support bracket for the dehumidifier.

8Installer’s & Owner’s Manual
CONDENSATE PUMP INSTALLATION
Step 5. Attach the 20' drain hose to the condensate pump
and route it to a floor drain.
Plug in the condensate pump and
the assembly is completed.

DUCT KIT ASSEMBLY
9Installer’s & Owner’s Manual
Step 1. Position collar on a flat surface with tabs up.
Step 2. Position collar into large hole. Press firmly so that
tabs of collar go through the plenum hole
Step 3. Press down firmly on the sheet metal
plenum. Lock the collar in position by bending the
collar tabs outwards and flatten
Step 4. All collar tabs are flattened.
Repeat steps 1 – 4 for top duct assembly.
Optional Accessory: Duct Kit
Duct Kit Assembly Instructions
Do not drill any pilot holes into the plastic housing. You may damage the internal components. When
installing screws, be careful not to strip. Lightly tighten screws.
ATTACHING COLLARS
Instructions continued on next page

DUCT KIT ASSEMBLY
10 Installer’s & Owner’s Manual
FRONT DUCT ASSEMBLY
1. Check sealing foam on the front duct assembly. Ensure that
none has come loose.
2. Place front duct assembly on the intake side of the
dehumidifier.
3. Center the front duct assembly. Ensure the sealing foam makes
contact around the plastic intake grill surface. Sealing foam
should not cover any of the inlet portion of the intake grill.
4. DO NOT DRILL PILOT HOLES FOR SCREWS. You will risk
possibly damaging the internal components. Using the
through holes provided in the top duct assembly, screw in the
four 10-16 X 1/2 screws directly into the plastic housing (see
Figure 1 — screws indicated in white circle). Be careful not to
strip loose. Lightly tighten screws. Do this in all four through
hole locations.
TOP DUCT ASSEMBLY
1. Check sealing foam on the top duct assembly. Ensure none has
come loose.
2. Place top duct assembly, ensure the sealing foam makes
contact around the plastic surfaces.
3. Center the top duct assembly, ensure the sealing foam makes
contact around the plastic surfaces.
4. Ensure the rear flange of the top duct assembly is seated flush
against the back of the plastic housing. See Figure 2.
5. DO NOT DRILL PILOT HOES FOR SCREWS. You will risk
possibly damaging the internal components. Using the
through holes provided in the top duct assembly, secure back
flange of the top duct assembly first. Drive two 10-16 X 1/2
screws directly into the plastic housing. After the back flange
has been secured, drive in the last two screws (located on the
top) into the plastic housing using the same procedure.
6. Start unit and check for any air leaks around the perimeter of
the ducts.
7. If any leaks are found, seal leak with foil tape.
Duct Kit Assembly Instructions Continued
FIGURE 1 FIGURE 2