American Aldes DH-100V Operation, Maintenance, Blower Switch, Air Filters, Blower Oiling

2.4C Ducting for Fresh Air

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.

4.The need for an alternate ventilation device may be eliminated.

(Note: Aldes Model DHV-100V is specifically designed for dehumidification and ventilation.)

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.

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.

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.

3.2 Blower Switch

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.

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.

4.2 Blower Oiling

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.

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