The Aprilaire 1850 Series Dehumidifiers are designed for whole-home dehumidification, effectively controlling moisture in basements, crawl spaces, and other areas. They can also circulate air to even out humidity and temperature throughout a space.
The units feature a built-in digital control with a display and offer flexible installation options. They are designed for efficient operation and durability.
| Specification | Details |
|---|---|
| Capacity | 95 ppd (pints per day) |
| Energy Factor | 2.2 L/kW-h |
| Airflow @ varying E.S.P. (external static pressure - dry coil) |
|
| Voltage, phase, frequency | 120VAC, 1, 60 Hz |
| Current draw | 8.0 Amps |
| Noise | 54 dBA ducted |
| Dimensions (cabinet only) | Width: 12½", Height: 14½", Length: 27½" |
| Weight | 70 lbs. |
| Inlet air operating conditions (Dehumidification) | 50°F–104°F, 40°F dew point min. |
| Inlet air operating conditions (Ventilation) | 40°F–140°F, 0%–99% RH (non-condensing) |
(1)Rated capacity, energy factor and current draw measured at 80°F/60% RH inlet air at 0.0 ESP. (2)For actual height, add up to 2" for adjustable leveling feet or 2½" for casters. The width excludes the filter doors and length excludes the duct collars.
| Feature | Model 1850/1850W | Model 1852 |
|---|---|---|
| Casters or leveling feet | Leveling feet | Casters |
| Control | Built-in digital control with display | |
| Control mounting option | Field-interchangeable from top to front | |
| Cabinet insulation | ½" EPS (Expanded Polystyrene) | |
| Air discharge orientation | Top or end | |
| Inlet/Outlet duct collars | 10" diameter | |
| Backdraft damper at outlet | Included | |
| Filter | Washable MERV 8 | |
| Refrigerant | R410A | |
| Coil type | Corrosion-resistant aluminum | |
| Power cord | Plug Type (1850, 1852 only) | Plug Type (1850, 1852 only) |
| Discharge air temperature rise | 10°F–30°F | |
| Drain connection | ¾" MNPT Threaded | |
| Included drain tubing | None | 10' length |
| Warranty | 5 Years | |
(3)Built-in automatic control capable to be set up for dehumidification and ventilation or zoning. (4)Model 1850W is a hardwired unit and doesn't ship with a power cord. (5)Threaded barbed fitting included. 1852 includes 5' of clear drain tubing.
The Aprilaire 1850 Series Dehumidifiers work by drawing in air and passing it over an evaporator coil. This process cools the air below its dew point, causing moisture to condense and be removed from the unit via a drain. The air is then reheated by the condenser coil before being expelled back into the space. Dehumidification continues until the set point is reached, after which the unit cycles off and periodically samples the air to determine if further operation is needed.
The 1850 Series is ideal for a wide range of applications, including whole-home dehumidification and managing moisture levels in basements and crawl spaces.
The 1850 Series can be programmed to circulate air, which helps to equalize relative humidity and temperature levels across the treated space, thereby minimizing environmental variations.
The Aprilaire 1850 Series Dehumidifiers can be installed in horizontal or vertical applications. Shown below are common ducting configurations:
This configuration is suitable when a supply duct is not available. Air is drawn from the return duct, dehumidified, and then returned to the same duct. This method ensures the dehumidified air mixes thoroughly with the existing air before re-entering the house, making it ideal for whole-home dehumidification.
[Diagram showing air handler, return duct, and supply duct connections for dehumidifier]
This option is useful when a dedicated return or supply duct is unavailable. Air is drawn through a dedicated return grille, dehumidified, and then returned to either the supply plenum or the return duct. This is also designed for whole-home dehumidification.
[Diagram showing air handler, dedicated return grille, supply/return duct connections for dehumidifier]
This setup is for homes without existing ductwork. The Model 5546 Living Space Duct Kit is recommended for this application. It is used to dry specific areas with moisture issues, such as basements, crawl spaces, or sealed attics. The dehumidifier can be placed in a closet, mechanical room, or unfinished area and ducted into a finished room.
Air is drawn from the return duct, dehumidified, and then returned to the supply plenum. This configuration is intended for whole-home dehumidification.
[Diagram showing air handler, return duct, and supply plenum connections for dehumidifier]
Dimensions: 27" W x 3" H x 38" L. Weight: 18 lbs. Working Load: 400 lbs.
[Image of the Model 5822 Hanging Kit]
This duct kit is recommended for homes without ductwork, allowing the dehumidifier to dry specific areas. See dedicated grilles installation example above.
[Image of the Model 5546 Living Space Duct Kit]
[Image of the Model 8620/8620W Wall-Mount Control]
[Image of the Model 8910/8910W Wall-Mount Control]
[Image of the Model 8920W Wall-Mount Control]
[Image of the Model 76 Wall Mount Control]
| Parameter | External | Remote |
|---|---|---|
| Input voltage and current | Voltage: 24VAC ±20% Current: 25mA (nominal), 50mA (max.) at 24VAC |
Voltage: 35VDC (supplied by dehumidifier control board) |
| Output | Dry contact, normally open | Communication (RS485) |
| Control range | 40% - 80% RH | 1 (less dry) – 7 (more dry) |
| Accuracy | ±5% RH | 65°F–40°F dew point |
| Differential | 3% RH | See dehumidifier specifications |
| Low limit | 40°F dew point | 50°F dry bulb, 40°F dew point min. |
| High limit | 99°F dry bulb | 105°F dry bulb |
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