2.1C In remote area, duct inlet & outlet.
It is often desirable, especially in pool rooms and finished areas, to install the DH-100V 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 the DH-100V cabinet may not sense the humidity in the humid room accurately enough with this installation method. If so, an additional humidity control can be mounted in the humid room and wired to the DH-100V. Local electrical codes must be followed when wiring the control.
2.1D In remote area, duct outlet only.
A simpler remote installation method than the one above uses ducting only between the DH-100V discharge and the humid room; the DH-100V 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; e.g., high door undercut, louvered door or wall grill. This eliminates the need to remote mount the humidity control. There are several potential disadvantages to using this method. First, humid air is drawn into the room where the DH- 100V is located. Second, to accurately sense humidity, the blower in the DH-100V may need to run continuously to draw air from the humid room into the DH-100V room. Third, a slight negative pressure is created in the room with the DH-100V which could back draft 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 below.
2.1E In remote area, duct inlet only.
When the DH-100V 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 back draft, as would be the case if the room were sufficiently depressurized. This can be accomplished by installing a duct from the humid room to the DH-100V inlet and by allowing the DH-100V to discharge the dehumidified air into the room in which it's located. An adequate airflow path must exist between the two rooms for this method to work well. An additional humidity control may need to be mounted in the humid area and wired to the DH-100V to accurately maintain the desired humidity. Local electrical codes must be followed when wiring the control.
2.2 Electrical Requirements
The DH-100V plugs into a common grounded outlet on a 15 Amp circuit. It draws between 6 and 7 Amps under normal operating conditions. If used in a wet area (pool, spa room, or basement prone to flooding), a ground fault interrupter protected circuit is required.
If an extension cord is required, it must have a minimum of 16 gauge conductors if less than 25 feet long and 14 gauge if greater than 25 feet.
2.3 Condensate Removal
Condensate drains by gravity via the clear hose extending from the unit. Route the hose to a floor drain. Use care to keep the hose as flat to the floor as possible. Excessive humps will prevent proper drainage.
If the DH-100V is located too far from a floor drain for the attached hose to reach, inexpensive 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 a 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 the DH-100V.
2.4B Ducting for Dehumidification
Ducting the DH-100V 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 airflow.
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.