Sakura Dry-Boy SDB-45 Installer'S & Owner'S Manual Download Page 6

INSTALLER'S AND OWNER'S MANUAL

6

Installer’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

Summary of Contents for Dry-Boy SDB-45

Page 1: ...SAKURA Basement Air System for Basement Crawlspace Dehumidification Installer s Owner s Manual High Efficiency Dehumidifier Dry Boy Model SDB 45 ...

Page 2: ...btain 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...

Page 3: ... 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 dra...

Page 4: ... 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 doi...

Page 5: ...efer 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...

Page 6: ...t 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 compr...

Page 7: ... 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 M...

Page 8: ...8 Installer 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 ...

Page 9: ... 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 COLL...

Page 10: ...CT 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 ...

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