Aprilaire 1830 Wiring the Dehumidifier to the Hvac System and Zone Dampers, Optional W & Y Wiring

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WIRING THE DEHUMIDIFIER TO THE HVAC SYSTEM AND ZONE DAMPERS

NOTE: Use 18-22 AWG wire for wiring to HVAC system and zone dampers..

Pull off the wiring access cover near the dehumidifier control to access the wiring terminals.. Snap the wiring access cover back into place after completing all wiring..

WIRING TO THE HVAC SYSTEM

When the dehumidifier is ducted to the HVAC system, it is recommended that it also be wired to the HVAC system as shown in Figure 22.. If ducted to the HVAC system in return to return configuration, the dehumidifier must be wired to the HVAC system to prevent short circuiting dehumidified air directly back to the dehumidifier inlet.. In return to supply ducting configuration, running the HVAC fan with the dehumidifier ensures the warm dry air is mixed with room air before being discharged to the home..

Optional W & Y Wiring

Wire the W and/or Y terminal to the HVAC system when using the ventilation feature of the dehumidifier (see VENTILATION on page 19)..

Wire the dehumidifier Y terminal to the HVAC system if it is desired to disable the dehumidifier compressor from operating when the air conditioning is running.. See DEH w/AC in SYSTEM SET-UPon page 17 for additional set up steps required to access this feature..

WIRING TO ZONE DAMPERS

FIGURE 23 – Two Zone Wiring On-Board Control

FIGURE 22 – Wiring to HVAC System

+- A B ODT VENT DEH Remote Sensor Dampers

DHDH

 

Gh Rf Cf HVAC

FLOAT Switch

Gs W EQUIP.

 

 

Y

 

EXISTING WIRE

 

OPTIONAL

 

NEW WIRE

 

 

 

 

 

 

 

 

 

WIRES

 

 

 

HVAC

 

 

 

 

EQUIPMENT

 

 

THERMOSTAT

 

 

 

 

 

 

 

G

 

 

 

 

 

 

 

 

 

 

 

 

R

R

 

 

 

 

 

 

 

CC

G

WW

YY

90-1859

+- A B ODT VENT DEH Remote Sensor Dampers

Switch

FLOAT DH DH

Gh Rf Cf Gs W Y HVAC EQUIP.

(40 VA min)

24 VAC

(PRIMARY ZONE)

(SECONDARY ZONE)

NORMALLY CLOSED

NORMALLY OPEN

90-1896

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Contents Installation Instructions Safety InstructionsTable of Contents Specifications Closet installations SET UP Dehumidifier for InstallationStandard basement and attic installations fully ducted Crawl space, Sealed Attics or basement installationsDetach the on-board control by removing the four Control LocationTo move the control Voltage Hard WiringMinimum Wire Size AWG Minimum Circuit CapacityReattach the electrical service panel and side panel Hard WiringWiring Instructions Location Considerations Leveling Drain InstallationCondensate PAN, Condensate Pump and Float Switch Ductwork Ducting to Hvac System Basement and Attic InstallationsRequired Component Ducting NotesOptional Components Ducting to Hvac System Closet InstallationsOptional Component Ductwork Grilles with 10 Duct CollarsDucting for TWO Zone Installations Whole-Home Primary Zone InstallationExternal Control Crawl SPACE/SEALED Attic ControlOptional W & Y Wiring Wiring the Dehumidifier to the Hvac System and Zone DampersWiring to the Hvac System Wiring to Zone DampersSystem SET-UP & Checkout External Control Zone90-1854selections DEH W/ACZoning and/or Ventilation System SET-UP & CheckoutDehumidification Only 90-1854energizedTWO Zone Primary and Secondary Crawl Space or Sealed Attic Remote Control Using ModelSampling will show on the display Press the ON/OFF button to turn the dehumidifier control onVentilation Installation Intake Hood AWG WireInstallation & Wiring VentilationVENT-AUTO & VENT-TIMED Outdoor Temperature Sensor InstallationVentilation Dehumidifier can ventilate in four modesCFM Required Record the required CFMDetermine Fresh AIR Delivery Rate CFM DeliveredRepeatedly until the Vent For 3 seconds to accessDisabled screen appears Dehumidifying the Fresh AIR Adjusting Ventilation Time After Initial SET UPSequence of Operation Ventilation with AN External ControlDiagnostic Codes TroubleshootingDiagnostic Codes Troubleshooting Troubleshooting Guide Service Parts 10010759 B2206316A