Aprilaire 1850 Drain Installation, Leveling, Condensate PAN, Condensate Pump and Float Switch

Page 9

DRAIN INSTALLATION

The drain outlet on the dehumidifier can be hard piped using 3/4” nominal drain tubing or the provided fittings and 1/2” clear PVC tubing can be used to drain the dehumidifier.. Always maintain a constant downward slope from the dehumidifier to the drain and do not allow soft tubing to curl up which may result in air lock..

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 9..

Figure 9 – Level the Unit

0.38" MIN

2.00" MAX

3/4” DRAIN

90-1885

CONDENSATE PAN, CONDENSATE PUMP AND FLOAT SWITCH

Always install the dehumidifier in a condensate pan when locating in or above a finished space.. Adhere to local codes regarding draining of the condensate pan.. If a condensate pump is needed, install it in the condensate pan as well..

Install a condensate overflow safety switch (i..e.. float switch) in the condensate pan, remove the factory installed jumper wire between the Float Switch terminals on the control and wire the float switch to the dehumidifier as shown in Figure 10.. Overflow safety switches on condensate pumps can be wired to the Float Switch terminals in a similar fashion..

Figure 10 – Float Switch Wiring

FLOAT DH DH Switch

NORMALLY CLOSED

FLOAT SWITCH

90-1857

9

Image 9
Contents Safety Instructions Installation InstructionsTable of Contents Specifications Standard basement and attic installations fully ducted SET UP Dehumidifier for InstallationCloset installations Crawl space, Sealed Attics or basement installationsControl Location To move the controlDetach the on-board control by removing the four Minimum Wire Size AWG Hard WiringVoltage Minimum Circuit CapacityHard Wiring Wiring InstructionsReattach the electrical service panel and side panel Location Considerations Drain Installation Condensate PAN, Condensate Pump and Float SwitchLeveling Required Component Ducting to Hvac System Basement and Attic InstallationsDuctwork Ducting NotesOptional Component Ducting to Hvac System Closet InstallationsOptional Components Ductwork Grilles with 10 Duct CollarsWhole-Home Primary Zone Installation Ducting for TWO Zone InstallationsCrawl SPACE/SEALED Attic Control External ControlWiring to the Hvac System Wiring the Dehumidifier to the Hvac System and Zone DampersOptional W & Y Wiring Wiring to Zone DampersSystem SET-UP & Checkout 90-1854selections ZoneExternal Control DEH W/ACDehumidification Only System SET-UP & CheckoutZoning and/or Ventilation 90-1854energizedSampling will show on the display Crawl Space or Sealed Attic Remote Control Using ModelTWO Zone Primary and Secondary Press the ON/OFF button to turn the dehumidifier control onInstallation & Wiring Intake Hood AWG WireVentilation Installation VentilationVentilation Outdoor Temperature Sensor InstallationVENT-AUTO & VENT-TIMED Dehumidifier can ventilate in four modesDetermine Fresh AIR Delivery Rate Record the required CFMCFM Required CFM DeliveredFor 3 seconds to access Disabled screen appearsRepeatedly until the Vent Sequence of Operation Adjusting Ventilation Time After Initial SET UPDehumidifying the Fresh AIR Ventilation with AN External ControlTroubleshooting Diagnostic CodesDiagnostic Codes Troubleshooting Troubleshooting Guide Service Parts 10010759 B2206316A