Aprilaire 1850 Specification Sheet
PRODUCT SPECIFICATIONS
(1)
Capacity
Energy factor
(1)
95 ppd
2.2 L/kW-h
Airflow @ varying E.S.P.
(external static pressure - dry coil)
0.0” w.c. 265 CFM
0.2” w.c. 230 CFM
0.4” w.c. 200 CFM
Voltage, Phase, Frequency 120V, 1, 60 Hz
Current draw
(1)
8.0 A
Noise 54 dBA ducted
Dimensions (cabinet) Width: 12.5” cabinet
Height: 14.5” cabinet
Length: 27.5” cabinet
Weight 75 lbs
Operating conditions
Inlet air operating conditions
Ambient/Ventilation
(1)
Rated capacity and Energy Factor test done and current draw
50°F - 104°F, 40°F dew point min.
40°F - 140°F, 0% - 99% RH
measured in accordance with AHAM DH-1 2008 at 80°F/60%RH inlet
air at 0.0 ESP.
15.08
SPECIFICATION SHEET
DEHUMIDIFIER
MODEL 1850
13.00
14.38
0.38 TO 2.00
4.12
Ø10.0
32.96
24.84
4.00
Ø10.0
Ø3/4" PIPE, INSIDE
PRODUCT FEATURES
(2)
Controls
Built-in digital control with
display, top or front mount
Cabinet insulation 1/2” EPS
Air discharge orientation Top or end
Inlet/Outlet duct collars 10” dia.
Backdraft damper at Outlet Included
Filter 1/2” washable, MERV 8
Refrigerant R410A
Coil corrosion resistance
E-Coated coil
Power cord Plug type
Hardwire option
Yes, special option 1850 WD
Discharge air temperature rise 10°F-30°F
Drain connection 3/4” PVC adapters
(3)
Warranty 5 Years
(2)
Built-in automatic control capable to be set up for dehumidification,
humidification, and ventilation or zoning.
(3)
Adapters for threaded connection or plastic hose included.
PRINCIPLE OF OPERATION
The Aprilaire Model 1850 is designed to dehumidify the air coming into the
unit by passing the incoming air over an evaporator coil to drop the air
temperature below the dew point of the air. Moisture is removed from the air
and drained out of the unit to a common floor or waste drain. The air is then
reheated in the condenser coil and exits the unit.
Dehumidification occurs until the set point is reached, then shuts off until
periodic sampling determines a need for operation.
APPLICATION
The Aprilaire Model 1850 is the perfect product for smaller homes,
townhomes, condominiums and crawlspaces.
VENTILATION
The Model 1850 has the ability to bring in fresh air. Fresh air will dilute stale
air and pollutants and will reduce humidity in the winter months. The fresh
air is brought in through a 6” round duct and 6” round normally closed
damper. The dehumidifier has built in controls to adjust the amount of fresh
air that is brought in.
Installation options for the Aprilaire 1850 Dehumidifier
AIR
RETURNSUPPLY
HANDLER
AIR
RETURNSUPPLY
HANDLER
AIR
RETURNSUPPLY
HANDLER
AIR
RETURNSUPPLY
HANDLER
Shown in horizontal applications, can be installed in vertical applications as well.
APPLICATIONS
Main Return to Main Return - RECOMMENDED
• This application can be used when a supply duct is not available
• Air is pulled from the return duct, dehumidified, and returned to the return duct
• Assures that the dehumidified air is mixed with rest of the air in the duct before
it re-enters the house
• This application is used in basements, attics, crawl spaces, etc.
Dedicated Return to Main Supply or Dedicated Return to A/C Return
• This application can be used when a return or supply duct is not available
• Air is pulled through a dedicated return grille, dehumidified, and returned to
the supply plenum or return
Dedicated A/C Return to A/C Return
• For homes without duct work
• Dries a specific area that has a moisture issue
• Dehumidifier can be located in a closet, mechanical room or unfinished area
and ducted into a finished room
Main Return to Main Supply
• Air is pulled from the return duct, dehumidified, and returned to the supply
plenum
• This application is used in basements, attics, equipment closets, etc.
Optional Wall Mount Controls:
Model 76 Dehumid Control
• On/Off buttons
• Wall mounted living space control
• Displays RH and controls to an
RH value
• Remote control for crawlspace
applications and sealed attics
Model 8620 Universal Programmable Thermostat
• On/Off buttons
• Wall mounted living space control
• Displays RH and controls to an
RH value
• Remote control for crawlspace
applications and sealed attics
8910 Module Universal Programmable Thermostat
• Large touch screen display
• 2H/2C conventional or 4H/2C heat pump
• Two part control — 3 wire design
• Notifies when ventilation is active
• Built in RH sensor
• Outdoor temperature sensor included
• Design to meet ASHRAE 62.2 ventilation guidelines
• Optional high or low outdoor temperature lockout
• Capable to control humidification, dehumidification,
ventilation and air cleaning
Form No. 888 #254793 01.14
© 2014 Aprilaire – A division of Research Products Corporation
www.aprilairepartners.com
P.O. Box 1467
Madison, WI 53701-1467
Phone: 800.334.6011 • Fax: 608.257.4357
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