Aprilaire E070 Dehumidifier Instruction Manual - Manuals+ (2023)

Model E070 Dehumidifier
Installation Instructions

SAFETY INSTRUCTIONS

WARNING

1. 120 Volts may cause serious injury from electric shock. Disconnect electrical power before starting installation or servicing. Leave the power disconnected until installation/service is completed.
2. Sharp edges may cause serious injury from cuts. Use care when cutting plenum openings and handling ductwork.
3. Dropping may cause personal injury or equipment damage. Handle with care and follow installation instructions.

CAUTION

1. Read all instructions before beginning installation.
2. Improper installation may cause property damage or injury. Installation, service, and maintenance must be performed by a qualified service technician.
3. Do not use in pool applications. Pool chemicals can damage the dehumidifier.
4. Do not use solvents or cleaners on or near the circuit board. Chemicals can damage circuit board components.
5. Wait 24 hours before running the unit if it was not shipped or stored in the upright position.
6. Do not use dehumidification to prevent window condensation in the winter.
   To address window condensation, use ventilation to lower indoor humidity in the winter.
7. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge unless they have been given supervision or instruction concerning the use of the appliance by a person responsible for their safety.
8. Children should be supervised to ensure that they do not play with the appliance.
9. If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer or its service agent.

READ AND SAVE THESE INSTRUCTIONS

SPECIFICATIONS

SET UP DEHUMIDIFIER FOR INSTALLATION

IMPORTANT: Cut the strap securing the compressor shipping support bracket and remove the strap and shipping bracket. See Figure 1.

PACKAGING CONTENT

1. Dehumidifier
2. Inlet/Outlet Collars
3. Literature
   a . Installation Instructions
   b. Owner’s Manual
4. Parts Bag
   a . #10 x 1/2 Screws (9)
   b . Threaded Barbed Fitting for Drain Connections
   c . Torx Bit
5. 10 foot, 3/4” Drain Tube

DUCT COLLARS

Use the screws in the parts bag to attach the duct collars to the inlet and outlet of the dehumidifier. See Figure 2.

LOCATION CONSIDERATIONS

• Allow sufficient clearance for filter removal and to prevent airflow obstruction
• Electrical service access will require the removal of the side panel shown.
  Allow sufficient space for service on this side of the unit.

INSTALLATION

LEVELING

The feet can be adjusted to level the unit, and if required, to accommodate drain fittings and a secondary condensate pan.
Leveling is required to ensure proper drainage from the dehumidifier. See Figure 4.

DUCTWORK INSTALLATION

Adding 5-10 feet of insulated ductwork to the inlet and outlet of the dehumidifier will ensure dehumidified air is circulated throughout the crawl
space and will reduce the noise level of the dehumidifier. Point the inlet and outlet ducts in opposite directions to minimize recirculation of dehumidified air.

• The maximum recommended total duct length is 100 feet.
• To avoid pulling in dirt and other particles, do not lay intake duct on the floor of the crawl space.

NOTE: This dehumidifier is designed for crawl space and stand-alone applications only.
Do not duct to an HVAC system.

DRAIN TUBING AND CONDENSATE PUMP INSTALLATION

The drain outlet on the dehumidifier can be plumbed directly to a condensate pump (see Figure 5) using the provided 3/4” MNPT x 3/4” hose barb fitting and 3/4” clear PVC tubing. Always maintain a constant downward slope from the dehumidifier to the condensate pump.
NOTE: PTFE thread seal tape is recommended for the threaded connection.
Hand tightens only. The 4856 condensate pump is capable of lifting water up to 22 feet. The dehumidifier can be elevated (while remaining level) to increase the downward slope for proper draining.
Wire the float switch terminals to the normally closed contacts on the condensate pump (see Figure 6).

MODEL 76 – CRAWL SPACE CONTROL AND WIRING

NOTE: Use 18-22 AWG wire for control wiring.
Used as a crawl space control (or remote control), the Model 76 is mounted in the living space while the dehumidifier is located in the crawl space.
When the dehumidifier is powered, the display on the dehumidifier control will show “REMOTE” to indicate that the remote control is being used. The RH shown on Model 76 is the RH measured at the dehumidifier.
NOTE: Air Cycling is not an option when using a Model 76 as a remote control.

AIR CYCLING

The dehumidifier has an optional ventilation feature that can be used to circulate air through the dehumidifier, to promote uniform humidity levels throughout the space.
When this feature is enabled, the dehumidifier fan can be set to run from 0 minutes (no air cycling) to 60 minutes (continuous) per hour. See VENTILATION / AIR CYCLING in the SYSTEM SET-UP, CHECK & START-UP section on page 7.
NOTE: The onboard control must be used when Air Cycling.

SYSTEM SET-UP, CHECK & START-UP

If using a Model 76 Remote Control and/or the Air Cycling feature, proceed to Step 1 below. If not using either feature, proceed to SYSTEM CHECK on page 7.

1. Check all wiring.
2. Make sure the wire access cover has been snapped back onto the onboard control.
3. Plug the unit in and turn the power switch to ON. The power switch is located on the dehumidifier outlet next to the power cord.
4. The onboard control screen should display OFF.
   NOTE: If the display backlight is not on, the first button press (any button) will only turn on the backlight.
   Press the button a second time to achieve function.
5. Hold the MODE button on the onboard control for 3 seconds to enter the Installer Set-up Menu.
6. Navigate through the following screens to set up the dehumidifier for the installed application.
   Use the UP or DOWN arrows to select items and use MODE to switch to the next set-up option.
   To exit the installer set-up, all options must be scrolled through using the MODE button.
7. After the installer setup options have been completed, DONE will blink for 3 seconds, and the control will return to the OFF screen.
   

REMOTE CONTROL – CRAWL SPACE

	If not installed in a crawl space with Model 76 remote control, press MODE to go to the VENT screen selections
	If installing in a crawl space with remote control, Enable and press MODE. The installer set-up is complete, proceed to SYSTEM CHECK on page 7. NOTE: Air Cycling is not an option when Remote is enabled.

VENTILATION / AIR CYCLING

	If not using the dehumidifier to periodically cycle air in the crawl space, press MODE to go to ZONE screen selections.
	If using the dehumidifier for air cycling, Enable and press MODE.
	Press MODE at the VENT TIMED screen to go to the ventilation time selection screen.
	Press the UP or DOWN arrows to adjust the ventilation time per hour from 0 to 60 minutes. After selecting a time, press MODE. Press MODE through the ZONE, EXTERNAL, DEH w/AC, and RH offset screens. DONE will be displayed on the screen and Installer Set-up is complete. Proceed to SYSTEM CHECK. on page 7.

SYSTEM CHECK

	Press and hold the ON/OFF button and MODE buttons for 3 seconds. The measured humidity, AIR SAMPLING, and TEST will show on the display.
	After three (3) minutes the dehumidifier compressor will turn on and DEHUMIDIFYING will replace AIR SAMPLING on the control screen.
	After one minute of compressor operation, all outputs will turn off, and DONE will blink for 3 seconds and then return to the OFF screen.

CRAWL SPACE USING THE DEHUMIDIFIER CONTROL

1. Press the ON/OFF button to turn the dehumidifier control ON.
   The display will show the current setting, and the dehumidifier blower and HVAC blower (if wired to the HVAC system) will turn on to start sampling the air.
   The setting will be replaced by the measured humidity and “AIR SAMPLING” will show on the display.
2. Use the UP or DOWN button to adjust the humidity setting as desired. The recommended initial setting is 59%.
3. After three (3) minutes of sampling, the measured humidity will be compared to the setting:
   a . If the humidity is above the setting, the dehumidifier compressor turns on, and “AIR SAMPLING” will be replaced by “DEHUMIDIFYING”. The compressor remains on until the measured humidity falls 3% RH below the setting.
   b . If the measured humidity is below the setting, the blowers turn off and the display returns to showing the RH setting.
4. The dehumidifier will sample again every 60 minutes, or at any time if the humidity setting is lowered.

CRAWL SPACE REMOTE CONTROL USING MODEL 76

1. Press the ON/OFF button to turn the dehumidifier control ON. “REMOTE” will show on the display to indicate that the remote control is wired to
   the dehumidifier .
2. At Model 76, press the ON button; Model 76 will display the RH measured at the dehumidifier, and the dehumidifier blower will turn
   on to start sampling the air.
3. Use the UP or DOWN button on Model 76 to adjust the dryness level as desired. The dryness levels are from 1 to 7, with 1 being the least dry
   and 7 being most dry; the recommended initial setting is 3.
4. After three (3) minutes of sampling, the measured humidity will be compared to the setting:
   a . If the humidity is above the setting, the dehumidifier compressor turns on and “ON” flashes on the Model 76 display.
   b . If the measured humidity is below the setting, the dehumidifier blower turns off.
5. The dehumidifier will sample again every 60 minutes, or at any time if the dryness level is increased.

START-UP

Your dehumidifier is equipped with two features that protect against unwanted energy consumption. Defrost is a normal operating mode that helps to prevent significant ice formation on the refrigeration system coil. The dehumidifier display will show “DEFROSTING” when operating in this mode. This mode can occur when there is not enough air moving through the dehumidifier or if the temperature and/or humidity of the incoming air is too low. The second protection feature is the E8 code. E8 on the dehumidifier display indicates that the air entering the dehumidifier is below 50°F or above 104°F, or the dew point of the incoming air is below 40°F. There would be a significant reduction in dehumidifier efficiency if the dehumidifier operated outside of these conditions. Low dew point conditions can be seen in some basements or crawl spaces and usually occur in the Winter and Spring months. The dehumidifier continues to monitor the incoming air and when the conditions are within the operating range, E8 will be removed from the display and dehumidification will begin as needed.

TROUBLESHOOTING

Technical Support is available Monday through Friday, 7:00 a .m . to 5:00 p .m . CST, at (800) 334-6011 . Use the guides on the following pages to
identify and correct system faults. Contact Technical Support before replacing the unit or any components and for additional troubleshooting.
DIAGNOSTIC CODES
When an error occurs, the Diagnostic Code along with SERVICE REQUIRED will be displayed on the control screen.

TABLE 1 – Diagnostic Codes

TABLE 2 – Troubleshooting Guide

SERVICE PARTS

AprilairePartners.com
P.O. Box 1467
Madison, WI 53701-1467
800.334.6011 F: 608.257.4357
Printed in the USA
©2021 Aprilaire – Division of Research Products Corporation
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Documents / Resources

References

• AprilAire Partners