1. Introduktion
This user manual provides comprehensive instructions for the installation, operation, and maintenance of your AprilAire E100C 100-Pint Whole-House Dehumidifier and Little Giant VCMA-20ULS 80 GPH Automatic Condensate Pump Bundle. This system is designed to effectively control humidity levels in your home, preventing issues such as dampness, mold, mildew, rot, and pests, while safely removing condensate.

Figure 1.1: AprilAire E100C Dehumidifier and Little Giant Condensate Pump Bundle. This image displays both the AprilAire dehumidifier and the Little Giant condensate pump, illustrating the complete product bundle.
Please read this manual thoroughly before operating the units to ensure safe and efficient performance. Keep this manual for future reference.
2. Sikkerhedsoplysninger
Overhold altid følgende sikkerhedsforanstaltninger for at mindske risikoen for brand, elektrisk stød eller personskade.
- Elektrisk sikkerhed: Ensure the units are connected to a properly grounded electrical outlet. Do not use extension cords. Disconnect power before performing any maintenance or service.
- Vandsikkerhed: Do not immerse the dehumidifier or pump in water. Ensure proper drainage to prevent water accumulation.
- Placering: Place the dehumidifier on a level surface. Ensure adequate clearance around both units for proper airflow and operation.
- Børn og kæledyr: Keep children and pets away from the units during operation.
- Condensate Pump Safety Switch: The Little Giant condensate pump is equipped with a safety switch that can shut down connected appliances (like the dehumidifier or HVAC system) if the pump fails or the water level becomes too high. Ensure this switch is properly wired and tested during installation.
- Professionel installation: For complex installations or if you are unsure about any steps, consult a qualified professional.
3. Produktet er slutview
3.1 AprilAire E100C 100-Pint Whole-House Dehumidifier
The AprilAire E100C is a commercial-grade dehumidifier designed for basements, crawl spaces, or whole homes up to 5,500 sq ft. It efficiently removes up to 100 pints of moisture per day, contributing to a healthier indoor environment.

Figure 3.1: AprilAire E100C Whole-House Dehumidifier. This image shows the main unit of the dehumidifier, a compact white rectangular device with a large circular vent on one side, designed for efficient moisture removal.

Figure 3.2: AprilAire E100C Dehumidifier Capacity. This image highlights the dehumidifier's capability to remove up to 100 pints of moisture per day, indicating its high efficiency.

Figure 3.3: AprilAire E100C Dehumidifier Dimensions. This image provides a clear view of the dehumidifier with its key dimensions (length, width, height) labeled, aiding in planning for installation space.
- Kapacitet: Removes up to 100 Pints per Day (PPD).
- Dækning: Suitable for areas up to 5,500 sq ft.
- Fordele: Helps prevent damp carpeting, furnishings, mold, mildew, odors, rot, and pests.
- Effektivitet: Energy Star Most Efficient Certified, reducing energy consumption.
- Operation: Features smart sensing technology for automatic dehumidification.
3.2 Little Giant VCMA-20ULS 80 GPH Automatic Condensate Pump
The Little Giant VCMA-20ULS is an automatic condensate pump designed to remove water from HVAC systems, dehumidifiers, and furnaces. It ensures safe and efficient disposal of condensate, especially when gravity drainage is not feasible.

Figure 3.4: Little Giant VCMA-20ULS Condensate Pump. This image displays the compact design of the condensate pump, featuring a black reservoir base and a white pump housing.

Figure 3.5: Condensate Pump Applications. This image illustrates various applications for the condensate pump, including use with boilers, furnaces, air conditioning systems, dehumidifiers, and coolers.

Figure 3.6: Condensate Pump Features. This image details the key features of the pump, such as its 1/2-gallon collection tank, vertical centrifugal design, automatic operation, and safety switch.
- Kapacitet: Removes up to 80 Gallons per Hour (GPH).
- Operation: Automatisk start og stop.
- Sikkerhed: Features a safety switch to shut down connected appliances if the pump fails.
- Holdbarhed: Equipped with a stainless steel shaft and overload protected motor.
- Magt: 1/30 HK, 1.5 Amps, 93 Watts, 115 Volts, 60 Hz motor.
4. Opsætning og installation
4.1 AprilAire E100C Dehumidifier Setup
- Udpakning: Tag forsigtigt affugteren ud af emballagen. Undersøg den for eventuelle forsendelsesskader.
- Placering:
- For basements or crawl spaces, place the unit on a level surface, preferably near a floor drain or an area where a drain hose can be routed.
- Ensure at least 12 inches of clearance around all sides of the unit for proper airflow.
- Afløbsforbindelse:
- The dehumidifier requires continuous drainage. Connect a standard garden hose (not included) to the drain port on the unit.
- Route the hose to a suitable drain (e.g., floor drain, utility sink, or directly to the condensate pump). Ensure the hose is sloped downwards to allow for gravity drainage.
- Strømtilslutning: Plug the dehumidifier into a dedicated 115V, 60Hz, grounded electrical outlet.
4.2 Little Giant VCMA-20ULS Condensate Pump Setup
- Placering: Place the condensate pump on a level surface below the drain outlet of the dehumidifier or HVAC system it will serve.
- Indgangsforbindelse: Connect the drain hose from the dehumidifier (or other appliance) to one of the inlet ports on the condensate pump. Ensure a secure, leak-free connection.
- Udløbsledning:
- Connect a suitable discharge tube (typically 3/8" or 1/2" ID vinyl tubing, not included) to the pump's discharge outlet.
- Route the discharge tube to an appropriate drain location (e.g., utility sink, floor drain, or outside). Ensure the tubing is secured and free of kinks.
- Safety Switch Wiring: The pump includes a safety switch with two 5-inch switch lead wires. This switch can be wired to shut down the dehumidifier or HVAC system if the pump fails or the water level in the reservoir becomes too high. Consult the wiring diagram provided with the pump for specific instructions or seek professional assistance for this connection.
- Strømtilslutning: Plug the condensate pump into a dedicated 115V, 60Hz, grounded electrical outlet.
5. Betjening
5.1 AprilAire E100C Dehumidifier Operation
- Tænd: Ensure the unit is plugged in. The dehumidifier will typically have a control panel or a simple on/off switch.
- Indstilling af luftfugtighed: The E100C features smart sensing technology. You may be able to set a desired humidity level (e.g., 45-55% relative humidity is often recommended). The unit will automatically operate to maintain this level. Refer to the specific controls on your unit for setting adjustments.
- Kontinuerlig drift: The unit will run continuously until the desired humidity level is reached, or if the power is interrupted. It will automatically restart when humidity rises above the set point.
- Luftfiltrering: The dehumidifier also filters air as it operates. Ensure the air filter is clean for optimal performance.
5.2 Little Giant VCMA-20ULS Condensate Pump Operation
The condensate pump operates automatically in conjunction with the dehumidifier or other connected appliance.
- Automatisk aktivering: As condensate water flows into the pump's reservoir from the dehumidifier, a float switch inside the pump will rise. When the water level reaches a predetermined point, the pump will automatically turn on.
- Vandudledning: The pump will then discharge the water through the connected discharge line until the water level in the reservoir drops, causing the float switch to deactivate the pump.
- Sikkerhedsstop: If the discharge line becomes blocked or the pump malfunctions, causing the water level to rise excessively, the high-level safety switch will activate. If wired correctly, this switch will shut down the connected dehumidifier or HVAC system to prevent overflow.
6. Vedligeholdelse
Regular maintenance ensures the longevity and efficient operation of your dehumidifier and condensate pump.
6.1 AprilAire E100C Dehumidifier Maintenance
- Rengøring/udskiftning af luftfilter:
- Check the air filter every 3-6 months, or more frequently if the environment is dusty.
- Clean the filter by vacuuming or washing with mild soap and water. Ensure it is completely dry before reinserting.
- Replace the filter annually or as needed.
- Rengøring af spole: Periodically inspect the dehumidifier coils for dust and debris. If dirty, gently clean with a soft brush or vacuum. Do not bend the coil fins.
- Udvendig rengøring: Tør ydersiden af enheden af med en blød, damp klæde. Brug ikke skrappe kemikalier eller slibende rengøringsmidler.
6.2 Little Giant VCMA-20ULS Condensate Pump Maintenance
- Reservoar rengøring:
- At least once a year, or more often if the water appears murky or slimy, clean the pump reservoir.
- Disconnect power to the pump and the connected appliance.
- Remove the pump cover and carefully clean the inside of the reservoir, float switch, and check valve with warm, soapy water. Rinse thoroughly.
- Inspect the inlet and discharge lines for blockages.
- Reassemble and reconnect power.
- Discharge Line Check: Periodically ensure the discharge line is free of kinks, blockages, or excessive algae growth.
7. Fejlfinding
Før du kontakter kundesupport, skal du se følgende fejlfindingsvejledning for almindelige problemer.
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Dehumidifier not turning on. | No power; unit unplugged; circuit breaker tripped; safety switch on condensate pump activated. | Check power cord connection; reset circuit breaker; check condensate pump for high water level and clear any blockages. |
| Dehumidifier not removing moisture effectively. | Dirty air filter; coils are frozen; room temperature too low; unit size too small for area; doors/windows open. | Clean or replace air filter; allow unit to defrost (unplug for a few hours); ensure room temperature is above 65°F (18°C); ensure area is sealed. |
| Condensate pump not running. | No power; float switch stuck; motor failure. | Check power connection; clean reservoir and ensure float moves freely; if motor failure, pump may need replacement. |
| Condensate pump running continuously or overflowing. | Discharge line blocked or kinked; check valve faulty; pump too small for water volume. | Clear discharge line; inspect/replace check valve; ensure pump capacity matches dehumidifier output. |
| Unusual noise from either unit. | Loose parts; fan obstruction; motor issue. | Inspect for loose components; clear any obstructions; if noise persists, contact support. |
8. Specifikationer
8.1 AprilAire E100C Dehumidifier
- Modelnavn: E100C
- Affugtningskapacitet: 100 pints om dagen
- Dækning af gulvareal: Op til 5500 kvadratmeter
- Driftstilstand: Sammenhængende
- Farve: Hvid
- Speciel funktion: Transportabel
- Energieffektivitet: Energy Star Most Efficient Certified
8.2 Little Giant VCMA-20ULS Condensate Pump
- Modelnavn: VCMA-20ULS
- Kapacitet: 80 Gallons per Hour (GPH)
- Collection Tank: 1/2-gallon
- Motor: 1/30 HK, 1.5 Amps, 93 Watts, 115 Volts, 60 Hz
- Sikkerhed: Thermally protected, fan-cooled motor; CSA listed in USA and Canada; Dual function safety switch.
9. Garanti og support
The AprilAire E100C Dehumidifier comes with a 5 års garanti. For specific warranty details and terms, please refer to the documentation included with your dehumidifier or visit the official AprilAire webwebsted.
For support regarding the Little Giant VCMA-20ULS Condensate Pump, please refer to the documentation provided with the pump or visit the Little Giant official webwebsted.
If you encounter issues not covered in the troubleshooting section or require further assistance, please contact the respective manufacturer's customer support:
- AprilAire Support: www.aprilaire.com/support
- Little Giant Support: www.littlegiant.com/support
When contacting support, please have your model numbers (E100C, VCMA-20ULS) and purchase date available.





