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Manual Aprilaire 1850

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  • Aprilaire 1850 - page 1

    Model 1 8 3 0, 1 8 5 0 & 1 8 5 0 W Dehumidifier Installation Instructions READ AND SA VE 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 p ...

  • Aprilaire 1850 - page 2

    T ABLE OF CONTENTS Safety Instructions ...................................................................................................... 1 Specifications .......................................................................................................... 3 Set Up Dehumidifier for Installation ............................................. ...

  • Aprilaire 1850 - page 3

    SPECIFICA TIONS Model 1830 Model 1850 & 1850W Weight 67 lbs. 70 lbs. Capacity AHAM DH-1-2008 80°F , 60% RH Conditions 70 pints per day @ 160 CFM 95 pints per day @ 265 CFM Power 115 V AC, Single Phase, 60Hz 6.3A operating current 8A operating current Dehumidifier Inlet Air Conditions Dehumidification: 50°F – 104°F , 40°F dew point minimum ...

  • Aprilaire 1850 - page 4

    STANDARD BASEMENT AND ATTIC INSTALLATIONS (FULLY DUCTED) •  Use thescrews intheparts bagto attachthe ductcollars to the inlet and outlet ofthe dehumidifier . Theoutlet collar has a backflow damper . •  The outlet ductcollar may be attache ...

  • Aprilaire 1850 - page 5

    CONTROL P ANEL COVER CONTROL CONTROL CONTROL P ANEL COVER FIL TER ACCESS DOOR SET UP DEHUMIDIFIER FOR INST ALLA TION (CONTINUED) CONTROL LOCATION The on-board control can be located on the top of the dehumidifier or can be relocated to the front of the dehumidifier if the control can not be seen/accessed in the top orientation. T o move the control ...

  • Aprilaire 1850 - page 6

    HARD WIRING WARNING ELECTRICAL SHOCK HAZARD: 115-volts may cause serious injury or death from electrical shock. Disconnect and tag electrical service before starting installation or field-service. Leave electrical service disconnected until installation or field-service is complete. ELECTRICAL SHOCK HAZARD: An interrupted or broken ground may cau ...

  • Aprilaire 1850 - page 7

    LINE VOL TAGE NEUTRAL GROUND 115V AC WIRING TERMINALS GROUND LUG FITTING AS REQUIRED LINE SERVICE CABLE/CONDUIT ELECTRICAL SERVICE BOX SIDE P ANEL ELECTRICAL SERVICE BOX POWER CORD STRAIN RELIEF FIGURE 6 – Electrical Service Box Location FIGURE 7 – Hard Wire to 115 VAC Service 90-1900 90-1902 HARD WIRING (CONTINUED) WIRING INSTRUCTIONS 1. Disco ...

  • Aprilaire 1850 - page 8

    LOCA TION CONSIDERA TIONS TOP VIEW FIL TER MINIMUM CLEARANCE FOR FIL TER (EITHER SIDE) 13" 6" MINIMUM CLEARANCE FOR PROPER AIR FLOW ELECTRICAL SERVICE ACCESS THIS SIDE 6 FT . POWER CORD FIGURE 8 – Filter Access Clearance 90-1840 •  Allow sufficient clearancefor filter removal and to prevent airflow obstructi ...

  • Aprilaire 1850 - page 9

    0.38" MIN 2.00" MAX 3/4” DRAIN FLOA T Switch DH DH NORMAL LY CLOSED FLO AT SWITCH DRAIN INST ALLA TION LEVELING CONDENSATE PAN, CONDENSATE PUMP AND FLOAT SWITCH 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 th ...

  • Aprilaire 1850 - page 10

    DUCTING TO HV AC SYSTEM – BASEMENT AND A TTIC INST ALLA TIONS The Preferred Installation is to duct the dehumidifier to pull air from and return dehumidified air to the HVAC return duct. This installation will ensure warm, dehumidified air is thoroughly mixed with the HV AC system air before being discharged into the living space. Alternatively , ...

  • Aprilaire 1850 - page 11

    HV AC Model 1 830 0.4” w. c. MAX Model 18 50 (W) 0.6” w. c. MAX HV AC DUCTING TO HV AC SYSTEM – CLOSET INST ALLA TIONS The dehumidifier in these applications is typically installed under or next to the HV AC equipment. In both types of installation, the dehumidifier inlet is not ducted and pulls from the living space through a grille or louve ...

  • Aprilaire 1850 - page 12

    T O/ FROM SECONDARY ZONE SUPPL Y DUCT RETURN DUCT NORMALL Y CLOSED DAMPER NORMALL Y CLOSED DAMPER SUPPL Y TO PRIMARY ZONE RETURN FROM PRIMARY ZONE NORMALL Y OPEN DAMPER NORMALL Y OPEN DAMPER 6 ft MIN T O/ FROM PRIMARY ZONE SUPPL Y DUCT RETURN DUCT NORMALL Y OPEN DAMPER NORMALL Y OPEN DAMPER SUPPL Y TO SECONDARY ZONE RETURN FROM SECONDARY ZONE NORMA ...

  • Aprilaire 1850 - page 13

    +- AB ODT Sensor Remote Gh Rf Cf Gs Y W HVAC EQUIP . MODEL 76 CONTROL FLOA T Switch DH DH VENT DEH Dampers NC NO NO/NC SWITCH DH DH R/+ C/- B A MODEL 76 – EXTERNAL CONTROL OR CRA WL SP ACE / SEALED A TTIC CONTROL AND WIRING NOTE: Use 18-22 AWG wire for control wiring. FIGURE 20 – Model 76 External Control Wiring 90-1862 EXTERNAL CONTROL CRAWL S ...

  • Aprilaire 1850 - page 14

    WIRING TO THE HVAC SYSTEM WIRING TO ZONE DAMPERS When the dehumidifier is ducted to the HV AC system, it is recommended that it also be wired to the HV AC system as shown in Figure 22 . If ducted to the HVAC system in return to return configuration, the dehumidifier must be wired to the HV AC system to prevent short circuiting dehumidified air dire ...

  • Aprilaire 1850 - page 15

    SYSTEM SET -UP & CHECKOUT If dehumidifier installation does not include ventilation or zoning and will not be wired to an external control, remote control or the HV AC system, proceed to Installer T est Mode section on page 17. 1. Check all wiring. 2. Make sure the wire access cover has been snapped back onto the on-board control. 3. Plug unit ...

  • Aprilaire 1850 - page 16

    DEH W/AC 90-1854 T o allow dehumidification during active air conditioning, select ENABLED and press MODE. 90-1854 T o disable dehumidification when the air conditioning is on, select DISABLED and Press MODE. RH Offset 90-1854 An offset can be applied to the on-board humidity humidity reading to avoid discrepancies with other humidity measuring dev ...

  • Aprilaire 1850 - page 17

    SYSTEM SET -UP & CHECKOUT (CONTINUED) Dehumidification Only 90-1854 If the dehumidifier is not already OFF , press the ON/OFF button to turn it off. 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 . If wired to the HV AC system, the HVAC blower will ...

  • Aprilaire 1850 - page 18

    ST ART UP AND SEQUENCE OF OPERA TION SINGLE ZONE WHOLE HOUSE OR STAND ALONE USING THE DEHUMIDIFIER CONTROL SINGLE ZONE WHOLE HOUSE OR STAND ALONE USING MODEL 76 EXTERNAL CONTROL CRAWL SPACE OR SEALED ATTIC (REMOTE) CONTROL USING MODEL 76 TWO ZONE – PRIMARY AND SECONDARY 1. Press the ON/OFF button to turn the dehumidifier control ON. The display w ...

  • Aprilaire 1850 - page 19

    VENTILA TION The dehumidifier can activate a normally closed damper to bring in outdoor air through a fresh air intake duct. This feature can not be used when a Model 76 has been installed in a Remote Control application, and is not recommended for two-zone installations. Required Components Optional Components Aprilaire Model 6506, Normally Closed ...

  • Aprilaire 1850 - page 20

    VENTILA TION (CONTINUED) VENT-AUTO & VENT-TIMED OUTDOOR TEMPERATURE SENSOR INSTALLATION The dehumidifier can ventilate in four modes. V ent-T imed: V entilation occurs based only on time setting; no temperature restrictions. V ent-Auto-B: V entilation prevented when outdoor temperature is below 0°F and above 100°F . Between 0°F – 20°F ven ...

  • Aprilaire 1850 - page 21

    DETERMINE FRESH AIR DELIVERY RATE 1. Measure the negative static pressure of the return system at the location where the fresh air intake duct enters the return duct or dehumidifier inlet. 2. See T able 2 for estimated inlet airflow in CFM, based on duct type, length and available negative pressure. Use an airflow measuring device for a more accura ...

  • Aprilaire 1850 - page 22

    T ABLE 3 – Cycle T ime Setting (minutes) for Airflow Delivered vs. Airflow Required for 1 hour Cycle CFM Delivered CFM Required 20 30 40 50 60 70 80 90 100 60 20 30 40 50 60 70 80 90 100 80 15 25 30 40 45 55 60 70 75 100 15 20 25 30 35 40 50 55 60 120 10 15 20 25 30 35 40 45 50 140 10 15 15 20 25 30 35 40 45 160 10 10 15 20 25 25 30 35 40 VENTILA ...

  • Aprilaire 1850 - page 23

    SEQUENCE OF OPERATION When wired as shown in Figure 26 , the ventilation damper will open whenever there is an HV AC heating (W), cooling (Y) or fan (Gs) call, allowing fresh air to be brought in when the HV AC blower is running (see VENTILA TION WITH AN EXTERNAL CONTROL section below for exceptions).The ventilation damper will also? ...

  • Aprilaire 1850 - page 24

    TROUBLESHOOTING T echnical 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 T echnical Support before replacing the unit or any components and for additional troubleshooting. DIAGNOSTIC CODES When an error occurs, the Dia ...

  • Aprilaire 1850 - page 25

    TROUBLESHOOTING (CONTINUED) T ABLE 4 – Diagnostic Codes (continued) Diagnostic Code Failure Mode Action Reset E7 Float Switch Open 1. Empty the condensate pan. 2. Check the float switch connection at the control board. 3. If not using a float switch, verify jumper is between float switch terminals on dehumidifier control board. 4. If the problem ...

  • Aprilaire 1850 - page 26

    T ABLE 5 – T roubleshooting Guide Symptom Possible Reason T roubleshooting 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. •? ...

  • Aprilaire 1850 - page 27

    SERVICE P ARTS 8 7 3 4 5 9 1 6 2 13 10 18 11 14 17 19 16 12 15 No. Part Description Part No. 1 Filter , 10” x 12”x 1” EZK 5443 2 Internal Control Board, Deh 5444 3 User Interface Assembly , Deh 5445 4 Wiring Access Door , AA Deh 5446 5 Hole Cover , UI Ctrl, Deh 5447 6 Door , Filter Access, AA Deh 5448 7 Outlet Duct Panel, De ...

  • Aprilaire 1850 - page 28

    P.O.Box1467•Madison,WI53701-1467•Phone:800/334-6011 •Fax:608/257-4357• www.aprilairepartners.com 10010759 2.14 B2206316A Printed in U.S.A. © 2014 Aprilaire – A division of Research Products Corporation ...

Manufacturer Aprilaire Category Dehumidifier

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A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Aprilaire 1850 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Aprilaire 1850.

A complete Aprilaire manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

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2. Contents - index of all tips concerning the Aprilaire 1850, that we can find in the current document
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