American Aldes Dehumidifier DH 100V User Manual

INSTALLATION  
OPERATION  
MAINTENANCE  
DH-100V  
HIGH EFFICIENCY DEHUMIDIFIER  
972 DH 09-12  
ALDES DH-100V  
Installation, Operation & Service Instructions  
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 DH-100V  
dehumidifier.  
Table of Contents  
1 Specifications  
1. Specifications....................................................... 1  
2. Installation............................................................ 1  
2.1 Location ............................................................ 1  
2.1A In humid area, no ducting. .......................... 1  
2.1B In humid area, duct inlet and/or outlet. .......... 1  
2.1C In remote area, duct inlet & outlet............... 2  
2.1D In remote area, duct outlet only.................. 2  
2.1E In remote area, duct inlet only. ................... 2  
2.2 Electrical Requirements .................................... 2  
2.3 Condensate Removal........................................ 2  
2.4 Ducting .............................................................. 2  
2.4A Optional Ducting ........................................ 2  
2.4B Ducting for Dehumidification....................... 2  
2.4C Ducting for Fresh Air................................... 3  
3. Operation.............................................................. 3  
3.1 Humidity Control Adjustment............................. 3  
3.2 Fan Switch......................................................... 3  
4. Maintenance ......................................................... 3  
4.1 Air Filter............................................................. 3  
4.2 Blower Oiling ..................................................... 3  
5. Service .................................................................. 4  
5.1 Warranty............................................................ 4  
5.2 Technical description ........................................ 4  
5.3 Troubleshooting................................................. 4  
5.4 Refrigerant Charging......................................... 5  
5.5 Blower Replacement......................................... 5  
5.6 Compressor/Capacitor Replacement................ 5  
5.6A Checking Compressor Motor Circuits......... 5  
5.6B Replacing a Burned Out Compressor......... 5  
5.6C Replacing a Compressor- Nonburn Out .........6  
5.7 Humidity Control................................................ 6  
5.8 Defrost Thermostat............................................ 6  
5.9 Condensate Pump............................................. 6  
6. Wiring Diagrams .................................................. 7  
7. Service Parts List................................................. 8  
8. Warranty................................................................ 9  
9. Service Notes ..................................................... 10  
Model: DH-100V Dehumidifier  
Electrical: 110-120 VAC, 6.8 Amps, grounded  
Capacity: 100 pints/day @ 80°F, 60% RH  
Operating Temp. Range: 53°F min, 105°F max  
Air Flow: 255 CFM without external ducting  
170 CFM @ 0.15 in.wg. external static  
Refrigerant Charge: 1 lbs., 14oz. R-22  
Optional Duct connections: 8" round inlet & outlet  
Size (w/o duct collars): 20" long x 17" wide x 36" high  
Weight: 103 lbs.  
2 Installation  
2.1 Location  
The DH-100V can be installed in a variety of locations to  
meet the owner's needs as listed below. In all cases,  
keep the following cautions in mind:  
It is designed to be installed INDOORS ONLY.  
If used near a pool or spa, be certain there is NO  
chance the unit could roll into the water or be  
splashed and that it is plugged into a GROUND  
FAULT INTERRUPTER.  
DO NOT use the DH-100V as a bench or table.  
Avoid discharging the air directly at people,  
especially in pool areas.  
2.1A In humid area, no ducting.  
The simplest installation is to place the DH-100V 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.  
Serial No.________________________________  
Purchase Date____________________________  
Dealer's Name____________________________  
1
 
2.4C Ducting for Fresh Air  
3.2 Blower Switch  
Fresh air can be brought into the structure continuously  
by connecting a duct from outside to the DH-100V inlet  
and by turning on the fan switch. Advantages of this form  
of ventilation include:  
1. Outside air is filtered before entering the building.  
2. Outside air will be dehumidified before entering if  
the DH-100V is running.  
3. Drawing air from outside and blowing inside aids in  
pressurizing the structure. This helps prevent unfil-  
tered and humid air from entering elsewhere. It also  
reduces the potential for carcinogenic radon gas to  
enter.  
Turning ON the fan switch 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 fresh air ventilation.  
4 Maintenance  
4.1 Air Filters  
The DH-100V is equipped with 2 air filters. A foam  
prefilter followed by a pleated fabric filter. These should  
be checked monthly. Operating the unit with dirty filters  
will reduce dehumidifier capacity and efficiency and may  
cause the compressor to cycle off and on unnecessarily  
on the defrost control.  
4. The need for an alternate ventilation device may be  
eliminated.  
(Note: Aldes Model DHV-100V is specifically  
designed for dehumidification and  
ventilation.)  
If dirty, the foam prefilter can be vacuumed or carefully  
hand washed with warm water and mild detergent, then  
rinsed. The pleated fabric filter can generally be  
vacuumed clean several times before needing  
replacement. Replacement filters can be ordered from  
the factory or purchased locally if available. DO NOT  
operate the unit without the filters or with a less effective  
filter. The heat exchange coils inside the unit could  
become clogged and require disassembly to clean.  
An insulated 6" diameter duct is generally sufficient to  
provide up to 100 CFM of outside air. An adjustable  
damper is recommended for controlling the airflow.  
Large quantities of outside air will impact the DH-100V’s  
performance positively or negatively, depending upon  
the difference between inside and outside air conditions.  
Consult the factory by calling 1-800-255-7749 for  
recommendations regarding the use of higher flows with  
your specific application.  
4.2 Blower Oiling  
The outside air duct should be connected into the main  
inlet duct close to the unit. If no other inlet duct is used,  
locate the outside air duct end on top of and as close as  
possible to the DH-100V air filter.  
The blower motor is factory lubricated for many years of  
normal operation. However, periodic oiling will extend  
motor bearing life. To oil, remove the plastic cap from the  
two oiling tubes extending from the unit above the  
humidity control (see Figure 3). Add 3 to 5 drops of SAE  
20 non-detergent oil to each port every 6 months. DO  
NOT use thinner oil or penetrating oil. Blower life can  
actually be decreased by such oil.  
3 Operation  
3.1 Humidity Control Adjustment  
Set the humidity control to the desired humidity level for  
the home. The dehumidifier will run continuously until the  
relative humidity (RH) is reduced to the humidity control  
dial setting. Setting the humidity control to lower RH  
levels will NOT increase the unit's dehumidification rate;  
the unit will simply run longer to reduce the area's RH to  
the setting. The ALDES DHV-100V unit (and refrigerant  
based dehumidifiers in general) will reduce a warm  
space's RH to a lower level than that of a cool space. It  
is therefore pointless to set the humidity control to  
excessively low levels in cool rooms; doing so will result  
in long periods of ineffective dehumidifier run time.  
Quality humidity meters are available from the factory  
and are recommended to accurately monitor humidity  
levels.  
3
 
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.  
5 Service  
CAUTION: Servicing the DH-100V with its high-  
pressure refrigerant system and high voltage circuitry  
presents a health hazard, which could result in death,  
serious bodily injury, and/or property damage. Only  
qualified service people should service this unit.  
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 to  
repeat the process.  
5.1 Warranty  
See page 9 for warranty terms. Read the warranty  
before any repair is initiated. If a warranty repair is  
required, call the factory first at 1-800-255-7749 for  
warranty claim authorization and technical assistance.  
5.3 Troubleshooting  
No dehumidification, neither blower nor compressor  
run with fan switch OFF.  
1. Unit unplugged or no power to outlet.  
2. Humidity control set too high or defective (Sec. 3.1  
& 5.7).  
5.2 Technical Description  
The DH-100V 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  
(see Fig. 1).  
3. Loose connection in internal wiring.  
No dehumidification, compressor does not run but  
blower runs with fan switch OFF and humidity  
control turned to ON.  
Hot, high-pressure refrigerant gas is routed from the  
compressor to the condenser coil (see Fig. 1). The  
refrigerant is cooled and condensed by giving up its heat  
to the air that is about to be discharged from the unit.  
The refrigerant liquid then passes through a filter/drier  
and 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.  
1. Defective compressor run capacitor (Sec. 5.6).  
2. Loose connection in compressor circuit  
Fig. 2).  
(see  
3. Defective compressor overload (Sec. 5.6A).  
4. Defective compressor (Sec.5.6).  
5. Defrost thermostat open (Sec. 5.8).  
Blower runs with fan switch OFF, but compressor  
cycles on & off.  
1. Low ambient temperature and/or humidity, causing  
unit to cycle through defrost mode.  
2. Defective compressor overload (Sec. 5.6A).  
3. Defective compressor (Sec. 5.6).  
4. Defrost thermostat defective (Sec. 5.8).  
Blower does not run with fan switch in either  
position. Compressor runs briefly but cycles on &  
off.  
1. Loose connection in blower circuit (see Fig. 2).  
2. Obstruction prevents impeller rotation.  
3. Defective blower.  
4. Blower switch defective.  
Evaporator coil frosted continuously, low  
dehumidifying capacity.  
Figure 1: Refrigeration System of DH-100V  
1. Defrost thermostat loose or defective (Sec. 5.8).  
2. Low refrigerant charge  
3. Dirty air filter or airflow restricted.  
4
 
5.4 Refrigerant Charging  
4. Compressor terminals C and S: No continuity indi-  
cates an open start winding. The compressor must  
be replaced. Normal start winding resistance 3 to 7  
ohms.  
If the refrigerant charge is lost due to service or a leak, a  
new charge must be accurately weighed in. If any of the  
old charge is left in the system, it must be removed  
before weighing in the new charge. Refer to the unit  
nameplate for the correct charge weight and refrigerant  
type.  
5. Compressor terminals C and R: No continuity indi-  
cates an open run winding. The compressor must  
be replaced. Normal run winding resistance is .5 to  
2 ohms.  
5.5 Blower Replacement  
The centrifugal blower has a PSC motor and internal  
thermal overload protection. If defective, the complete  
assembly must be replaced.  
6. Compressor terminal C and overload terminal 1: No  
continuity indicates a defective overload lead.  
1. Unplug the power cord.  
2. If an outlet duct is connected to the unit, remove it.  
3. Remove the cabinet side.  
4. Remove the 4 screws holding the electrical box  
located next to the blower.  
7. Overload terminals 1 and 3: If there is no continuity,  
the overload may be tripped. Wait 10 minutes and  
try again. If there is still no continuity, it is defective  
and must be replaced.  
5. Disconnect the blower leads. Black from the blower  
switch, and white the run capacitor.  
6. Unbolt the blower capacitor from the blower motor  
(required for removal clearance). Pull the oil tubes  
out of the motor.  
7. Remove the nuts & bolts holding the blower outlet  
flange to the cabinet end and remove the blower.  
8. Reassembling with the new blower is the above  
procedure reversed.  
8. Compressor terminal C and compressor case:  
Continuity indicates a grounded motor. The com-  
pressor must be replaced.  
9. Disconnect the yellow wires from the capacitor. Set  
the ohmmeter to the Rx1 scale. The capacitor is  
shorted and must be replaced if continuity exists  
across its terminals. If there is no needle movement  
with the meter set on the Rx100000 scale, the  
capacitor is open and must be replaced.  
5.6 Compressor/Capacitor  
Replacement  
This compressor is equipped with a two terminal external  
overload, run capacitor, but no start capacitor or relay.  
See Fig. 2.  
10. Reconnect the wires to the compressor and capaci-  
tor. Plug in and turn on the unit. If the compressor  
fails to start, replace the run capacitor.  
11. If the unit still doesn't start, adding a hard-start kit  
(relay & capacitor) will provide greater starting  
torque. If this doesn't work, the compressor has an  
internal mechanical defect and must be replaced.  
CAUTION-ELECTRICAL SHOCK HAZARD: Electrical  
power must be present to perform some tests; these  
tests should be performed by a qualified service person.  
5.6B Replacing a Burned Out Compressor  
5.6A Checking Compressor Motor Circuits  
The refrigerant and oil mixture in a compressor is  
chemically very stable under normal operating  
Perform the following tests if the blower runs but the  
compressor does not with the blower switch OFF and  
the humidity control ON.  
conditions. However, when an electrical short occurs in  
the compressor motor, the resulting high temperature  
arc causes a portion of the refrigerant oil mixture to  
break down into carbonaceous sludge, a very corrosive  
acid, and water. These contaminants must be carefully  
removed otherwise even small residues will attack  
replacement compressor motors and cause failures.  
1. Unplug the unit, remove the cabinet side (with two  
screws in center) and the electrical connection  
cover on the compressor top.  
2. Plug in the unit and turn the humidity control to ON.  
Check for 110 volts from compressor terminal R to  
overload terminal 3 using an AC voltmeter. If  
voltage is present, go to step 3. If no voltage, the  
high-pressure control or relay are open or there is a  
loose connection in the compressor circuit. Test  
each component for continuity; see the appropriate  
section if a defect is suspected.  
3. Unplug the unit, then disconnect the red and yellow  
wires from compressor terminals R & S. Using an  
ohmmeter, check continuity between the points  
listed below.  
5
 
The following procedure is effective only if the system is  
monitored after replacing the compressor to insure that  
the clean up was complete.  
An alternate method of removing moisture and non-  
condensibles from the system requires evacuation  
to 29" Hg vacuum. Then break the vacuum with 35  
to 50 PSIG refrigerant vapor charge. Leave the  
vapor charge in the system for at least 5 minutes  
before removing it. Repeat the vapor  
charge/wait/remove sequence twice more and then  
charge the system with the quantity and refrigerant  
listed on the nameplate.  
1. This procedure assumes that the previously listed  
compressor motor circuit tests revealed a shorted or  
open winding. If so, cautiously smell the refrigerant  
from the compressor service port for the acid odor  
of a burn out.  
8. Operate the system for a short period of time, moni-  
toring the suction pressure to determine that the  
suction filter is not becoming plugged. Replace the  
suction filter/drier if pressure drop occurs. If a  
severe running burn out has occurred, several fil-  
ter/driers may have to be replaced to remove all of  
the acid and moisture.  
WARNING: The gas could be toxic and highly  
acidic. If no acid odor is present, skip down to the  
section on changing a non-burn out compressor.  
2. Remove and properly dispose of the system  
charge. DO NOT vent the refrigerant indoors or  
allow it to contact your eyes or skin.  
NOTE: NEVER use the compressor to evacuate  
the system or any part of it.  
3. Remove the burned out compressor. Use rubber  
gloves if there is any possibility of contacting the oil  
or sludge.  
5.6C Replacing a Compressor- Nonburn Out  
4. To facilitate subsequent steps, determine the type  
of burn out that occurred. If the discharge line  
shows no evidence of sludge and the suction line is  
also clean or perhaps has some light carbon  
deposits, the burn out occurred while the  
Remove the refrigerant from the system. Replace the  
compressor and liquid line filter/drier. Charge the system  
to 50 PSIG and check for leaks. Remove the charge and  
weigh in the refrigerant quantity listed on the nameplate.  
Operate the system to verify performance.  
compressor was not rotating. Contaminants are  
therefore largely confined to the compressor  
housing. A single installation of liquid and suction  
line filter/driers will probably clean up the system.  
5.7 Humidity Control  
The humidity control is an adjustable switch that closes  
when the relative humidity of the air in which it is located  
rises to the dial set point. It opens when the RH drops 4  
to 6% below the set point.  
If sludge is evident in the discharge line, it will likely  
be found in the suction line; this indicates the  
compressor burned out will running. Sludge and  
acid has been pumped throughout the system.  
Several changes of the liquid and suction  
filter/driers will probably be necessary to cleanse  
the system.  
5.8 Defrost Thermostat  
The defrost thermostat is attached to the refrigerant  
suction tube between the accumulator and compressor.  
It will automatically shut the compressor off if the low  
side refrigerant temperature drops due to excessive frost  
formation 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 restart the compressor.  
5. Correct the system fault that caused the burn out.  
Consult the factory for advice.  
6. Install the replacement compressor with a new ca-  
pacitor and an oversized liquid line filter.  
In a running burn out, install an oversized suction  
line filter/drier between the accumulator and com-  
pressor. Thoroughly flush the accumulator with re-  
frigerant to remove all trapped sludge and to pre-  
vent the oil hole from becoming plugged. A standing  
burn out does not require a suction line filter/drier.  
5.9 Condensate Pump  
Condensate is automatically pumped to a remote  
location when the water level in the pump's reservoir  
rises to close the float switch.  
7. Evacuate the system with a good vacuum pump  
and accurate vacuum gauge. Leave the pump on  
the system for at least an hour.  
6
 
Figure 2: Electrical Schematic of the DH-100V Dehumidifier  
7
 
SERVICE PARTS LIST: DH-100V Dehumidifier  
ITEM  
PART NO.  
QTY.  
DESCRIPTION  
1
2
3
4
5
6
7
8
4021818  
AL99005  
4021468  
4022037  
4021589  
4023474  
4022144  
4017318  
4017799  
4021396  
4021409  
4021470  
4021648  
4021395  
4020955  
4021626  
4021469  
4021495  
4020554  
4021471  
4021507  
4021453  
4020623  
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
Accumulator  
Air Filter, Pleated, 2” x 16” x 20”  
Air Filter, Foam Element  
Blower w/ Capacitor (Fasco 7090-1874)  
Capillary Tubes, .050" ID x 28" long  
Compressor, Panasonic (2R12S3R126A-6A)  
Compressor Overload (TI # MRA98706-673) (not shown)  
Compressor Run Capacitor for Panasonic, 35 MFD, 370V  
Compressor Run Capacitor for Tecumseh, 25 MFD, 440V  
Condenser Coil  
Cord & Wire Harness  
Defrost Thermostat  
Defrost Thermostat Mounting Clip (item 11)  
Evaporator Coil  
Filter/Drier  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
Hose, Drain, .56"ID x 8'  
Humidity Controller  
Knob, Humidity Controller  
Switch, SPDT, for Fan  
Wheel, 2", Plastic  
Wiring Diagram (on Cover) (not shown)  
Optional Ducting Kit (for Inlet & Outlet) (not shown)  
Optional Outlet Collar (for Ducting Outlet only) (not shown)  
Figure 3  
8
 
Limited Warranty  
American ALDES Ventilation Corporation warrants to the original end user of the Dehumidifier or Dehumidifying  
Ventilator model referred to below, to be free from manufacturing defects. It is limited to the original end-user and may  
not be assigned or transferred.  
First Year Warranty: If the product exhibits a defect in materials or workmanship within one (1) year after purchase,  
American ALDES, at its option, will repair or replace the unit free of charge for materials and labor.  
Second through Fifth Year: American ALDES warrants that for a period of five (5) years, the condenser, evaporator,  
and compressor of the unit will operate free of defect in materials or workmanship, or American ALDES, at its option  
will repair or replace the defective parts, provided that labor and transportation costs are borne by the end-user.  
Proof of purchase: The end-user must provide a dated proof of purchase upon request, by copy of invoice from  
American ALDES, or the installing dealer.  
End-User Responsibilities: Warranty service must be performed by a Servicer authorized by American ALDES  
Ventilation Corporation. If the end-user is unable to locate or obtain warranty service from an authorized Servicer, he  
should call American ALDES Ventilation Corporation (1-800-255-7749) to arrange for covered warranty service.  
Warranty service will be performed during normal business hours.  
The end-user is responsible for normal care, including normal maintenance, filter replacement, as outlined in the  
installation and operating instructions. This warranty applies only to residential applications and does not cover any  
defect or malfunction, etc., resulting from misuse, abuse, lack of maintenance, corrosion, freezing, modification,  
unauthorized or improper repair or installation, accident, acts of nature, or any other cause beyond American ALDES  
Ventilation Corporation’s reasonable control.  
Limitations and Exclusions: If any American ALDES Dehumifier/Dehumidifying Ventilator part is repaired or  
replaced, the new part shall be warranted for only the remainder of the original warranty period applicable thereto. All  
warranty periods shall be extended by the period of time, if any, that the unit is out of service while awaiting covered  
warranty service.  
Upon the expiration of the written warranty applicable to the Dehumidifier/Dehumidifying Ventilator or any part thereof,  
all other warranties implied by law, including merchantability and fitness for a particular purpose, shall also expire.  
American ALDES makes no express warranties, except for those that are set forth herein and shall not be liable for  
any incidental, special, or consequential damages, including without limitation water damage (the end-user should  
take precautions against same), lost profits, delay, or loss of use or damage to any real or personal property, with  
respect to the American ALDES products covered by this warranty. American ALDES complete liability and the  
owner’s exclusive remedy are limited to repair or replacement according to the terms stated herein.  
No person is authorized to change the warranty in any way or grant any other warranty unless such changes are made  
in writing and signed by an officer of American ALDES Ventilation Corporation.  
Some states do not allow limitations of how long an implied warranty lasts, and some do not allow the exclusion or limitation  
of incidental or consequential damages, so one or both of these limitations by not apply to you.  
Legal Rights: This warranty gives you specific legal rights, and you may have other rights, which vary from state to state.  
American ALDES Ventilation Corporation, 4537 Northgate Ct. Sarasota, FL 34234 (800) 255-7749  
Model:  
Unit Serial No._____________________________________  
Installed by:____________________________________  
Date:____________________________________________  
Date  
Service Notes  
9
 
10  
 

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