Install Instructions

ManualsBrandsAprilaire ManualsDehumidifiersModel Crawl Space Dehumidifier (70 Pint Per Day)

READ AND SAVE THESE 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

WARNING

1. 120 Volts may cause serious injury from electric shock. Disconnect electrical power before starting installation or servicing.

Leave power disconnected until installation/service is completed.

2. Sharp edges may cause serious injury from cuts. Use care when cutting plenum openings and handling duct work.

3. Dropping may cause personal injury or equipment damage. Handle with care and follow installation instructions.

SAFETY INSTRUCTIONS

TABLE OF CONTENTS

Safety Instructions........................................1

Specifications............................................2

Set Up Dehumidifier for Installation ........................2

Packaging Content .......................................2

Duct Collars ............................................2

Location Considerations...................................3

Installation...............................................3

Leveling ...............................................3

Ductwork Installation.....................................3

Drain Tubing and Condensate Pump Installation ...............4

Model 76 – Crawl Space Control and Wiring ................5

Air Cycling...............................................5

System Set-Up, Check & Start-Up ..........................6

Remote Control – Crawl Space.............................6

Ventilation / Air Cycling...................................7

System Check...........................................7

Crawl Space Using the Dehumidifier Control..................8

Crawl Space Remote Control Using Model 76 .................8

Start-Up ...............................................8

Troubleshooting ..........................................9

Table 1 – Diagnostic Codes................................9

Table 2 – Troubleshooting Guide...........................10

Service Parts............................................11

Model 1820 Dehumidifier

Installation Instructions

Summary of content (12 pages)

PAGE 1
Model 1820 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 power disconnected until installation/service is completed. 2. Sharp edges may cause serious injury from cuts. Use care when cutting plenum openings and handling duct work. 3. Dropping may cause personal injury or equipment damage. Handle with care and follow installation instructions.
PAGE 2
SPECIFICATIONS Model 1820 Weight 56 lbs. Capacity: AHAM DH-1-2008 80°F, 60% RH Conditions 70 pints per day @ 200 CFM Power: 115 VAC, Single Phase, 60Hz 5.
PAGE 3
LOCATION CONSIDERATIONS • Allow sufficient clearance for filter removal and to prevent airflow obstruction FIGURE 3 – Filter Access Clearance • Electrical service access will require the removal of the side panel shown. Allow sufficient space for service on this side of the unit. FILTER ELECTRICAL SERVICE ACCESS THIS SIDE 13" MINIMUM CLEARANCE FOR FILTER TOP VIEW 8 FT.
PAGE 4
INSTALLATION (CONTINUED) DRAIN TUBING AND CONDENSATE PUMP INSTALLATION FIGURE 5 – Drain 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 tighten only.
PAGE 5
MODEL 76 – CRAWL SPACE CONTROL AND WIRING NOTE: Use 18-22 AWG wire for control wiring. NOTE: Air Cycling is not an option when using a Model 76 as a remote control. FIGURE 7 – Model 76 Crawl Space/Sealed Attic (Remote) Wiring + - A B ODT Remote Sensor Gh Rf Cf Gs W Y HVAC EQUIP. 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.
PAGE 6
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. REMOTE CONTROL – CRAWL SPACE If not installing in a crawl space with Model 76 remote control, press MODE to go to VENT screen selections 1. Check all wiring. 2. Make sure the wire access cover has been snapped back onto the on-board control. 90-1854 3. Plug unit in and turn power switch to ON.
PAGE 7
SYSTEM SET-UP, CHECK & START-UP (CONTINUED) SYSTEM CHECK VENTILATION / AIR CYCLING If not using the dehumidifier to periodically cycle air in the crawl space, press MODE to go to ZONE screen selections. 90-1854 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. 90-1854 After three (3) minutes the dehumidifier compressor will turn on and DEHUMIDIFYING will replace AIR SAMPLING on the control screen.
PAGE 8
SYSTEM SET-UP, CHECK & START-UP (CONTINUED) 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.
PAGE 9
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.
PAGE 10
TROUBLESHOOTING (CONTINUED) TABLE 2 – Troubleshooting Guide Symptom Possible Reason Troubleshooting Procedure Dehumidifier does not turn on/run. No power to unit. • Check that the dehumidifier is plugged in. • Check that the power switch is turned ON. • Check that the control is turned ON. • Check that the circuit breaker has not tripped. Dehumidifier blower is running but with little or no airflow. Pressure drop across dehumidifier is higher than 0.4”w.c.
PAGE 11
SERVICE PARTS 3 15 4 7 1 17 10 8 11 2 6 12 14 5 9 13 No. Part Description Part No. 90-2298 16 No. Part Description Part No. 1 Filter, 8” x 11.
PAGE 12
AprilairePartners.com P.O. Box 1467 Madison, WI 53701-1467 800.334.6011 F: 608.257.4357 Printed in USA ©2017 Aprilaire – Division of Research Products Corporation 10012343 B2207621B 9.