AQUASTRONG CDS320-1

Aquastrong 1/38 HP 85 GPH HVAC Condensate Pump

Model: CDS320-1

Brand: AQUASTRONG

1. Introduction

This manual provides essential information for the safe and efficient operation of your Aquastrong 1/38 HP 85 GPH HVAC Condensate Pump. This automatic condensate pump is designed for removing condensate from various HVAC appliances, including air conditioners, furnaces, and dehumidifiers. It features an efficient motor, a reliable safety switch, and a compact design for ease of use and maintenance.

Please read this manual thoroughly before installation and operation to ensure proper function and to prevent potential hazards.

Aquastrong Condensate Pump applications including ice maker, window AC unit, and dehumidifier.
Figure 1: The Aquastrong Condensate Pump is suitable for various applications such as ice makers, air conditioners, and dehumidifiers.

2. Safety Information

Adherence to the following safety guidelines is crucial for preventing injury and damage to the product.

  • Electrical Safety: Ensure the power supply matches the pump's voltage (115V/230V). Always connect the pump to a grounded outlet. Do not operate with a damaged power cord.
  • Installation: Install the pump vertically on a flat, level surface or wall. Do not mount the pump inside the air conditioner main unit or the power line box.
  • Water Levels: The pump is designed for condensate removal. If connected to multiple appliances, ensure the total inflow does not exceed the rated output of the pump to prevent overflow.
  • Air Circulation: Avoid blocking the air vents around the motor housing to prevent overheating.
  • Non-Submersible: This pump is not submersible. Do not immerse the pump in water.
  • Maintenance: Regular cleaning of the reservoir, float, and filter basket is necessary to prevent clogging and ensure proper operation.
Diagram showing correct and incorrect placement of the condensate pump, emphasizing non-submersible use and flat surface mounting.
Figure 2: Important safety and installation precautions, including non-submersible use and proper mounting on a flat, level surface.

3. Package Contents

Verify that all items are present in the package:

  • Aquastrong Condensate Pump (Model CDS320-1)
  • 1-1/8" Inlet Adapter
  • 3/4" Inlet Adapter
  • Metal Filter Basket
  • 3.3 ft UL Power Cord with 3-prong plug
  • Safety Switch Wires (two signal lead wires)
  • Zip Tie (for securing tubing)
Aquastrong Condensate Pump with included accessories: power cord, safety switch wires, inlet adapters, and filter basket.
Figure 3: The Aquastrong Condensate Pump and its accompanying accessories.

4. Product Overview

The Aquastrong Condensate Pump is designed for efficient and reliable condensate removal. Key components include:

  • Motor Housing: Contains the efficient, thermally protected motor for quiet operation.
  • Reservoir: A removable 1/2 gallon tank for collecting condensate.
  • Inlet Ports: Five 1-inch inlet ports (4/5-inch inner diameter) allow connection from multiple appliances. Adapters are provided for varying pipe sizes.
  • Metal Filter Basket: Located at the inlet opening to filter out debris and prevent clogging.
  • Barbed Outlet: A 2/5-inch O.D. barbed outlet with a built-in check valve, designed to fit 1/4-inch to 3/8-inch tubing. The check valve prevents backflow.
  • Hi-level Safety Switch: Two signal lead wires that can be connected to HVAC appliances to automatically shut them off if high water levels are detected, preventing overflow.
  • UL Power Cord: A 3.3-foot UL-certified power cord with a 3-prong plug for safe and convenient power connection.
Labeled diagram of the Aquastrong Condensate Pump showing wall mounting points, 2/5 inch barbed outlet, motor housing, 1 inch inlet ports, 1-1/8 inch and 3/4 inch inlet adapters, 3.3 foot power cord, and 3.3 foot safety switch wires.
Figure 4: Detailed view of the condensate pump components and connections.
Close-up of the pump's inlet ports and metal filter basket, highlighting the five 1-inch inlet ports and the debris-filtering basket.
Figure 5: The pump features five 1-inch inlet ports and a metal filter basket.
Close-up of the pump's standard outlet and check valve, showing the 2/5 inch barbed discharge and the internal check valve mechanism.
Figure 6: The standard outlet includes a built-in check valve to prevent backflow.
Image of the UL power cord and safety switch wires, emphasizing the 3.3-foot UL power cable with a grounded three-prong plug.
Figure 7: The pump is equipped with a 3.3-foot UL power cord and safety switch wires.

5. Specifications

Feature Specification
Model Number CDS320-1
Power Source AC
Voltage 115 Volts
Wattage 20 watts
Maximum Flow Rate 85 GPH (1.41 Gallons Per Minute)
Maximum Lifting Height (Head) 20 Feet
Tank Capacity 1/2 Gallon
Product Dimensions (L x W x H) 11.3" x 5" x 4.9"
Item Weight 2.57 Pounds
Material Plastic
Special Features Automatic Safety Switch, Thermal Overload Protection
Ambient Temperature Range 32°F - 122°F
Technical specifications of the Aquastrong Condensate Pump including voltage, tank capacity, power, flow rate, ambient temperature, and head. Also includes an output flow rate vs. total head graph.
Figure 8: Technical specifications and performance curve of the pump.
Diagram showing the dimensions of the Aquastrong Condensate Pump: 11.3 inches length, 5 inches width, 4.9 inches height. Also shows inlet adapter options.
Figure 9: Product dimensions and inlet adapter details.

6. Setup and Installation

Follow these steps for proper installation of your condensate pump:

  1. Placement: Select a location where the pump can be installed vertically on a flat, level surface or wall. Ensure there is adequate space for maintenance and air circulation around the motor housing.
  2. Inlet Connection: Connect the condensate drain line from your HVAC appliance(s) to one of the 1-inch inlet ports on the pump. Use the provided 1-1/8" or 3/4" adapters if necessary to match your drain line size. Ensure connections are secure to prevent leaks.
  3. Outlet Connection: Attach appropriate tubing (1/4" to 3/8" I.D.) to the 2/5" O.D. barbed outlet. Secure the tubing with the included zip tie to prevent detachment. Route the discharge tubing to a suitable drain point, ensuring it is free of kinks and has a continuous downward slope after any vertical lift.
  4. Safety Switch Wiring: The two black signal lead wires can be wired directly to your HVAC appliance's thermostat circuit. This feature will trigger the appliance to shut off automatically if the water level in the pump's reservoir becomes too high, preventing overflow. Consult your HVAC appliance's manual for specific wiring instructions for a safety switch.
  5. Power Connection: Plug the 3.3-foot UL power cord into a grounded 115V electrical outlet.
  6. Initial Test: For the first installation, manually fill the reservoir with water until the pump runs. This ensures the pump operates correctly and primes itself.
Close-up of the safety switch wires, indicating they can be wired to the thermostat circuit for safety shutdown.
Figure 10: The safety switch wires can be integrated with your HVAC system for automatic shutdown.

7. Operating Instructions

The Aquastrong Condensate Pump operates automatically:

  • The pump will automatically start when the water level in the reservoir reaches approximately 2.28 inches.
  • It will continue to pump until the water level drops to approximately 1.26 inches, at which point it will automatically stop.
  • The efficient motor ensures quick draining and quiet operation.
  • In case of abnormally high temperatures due to water shortage, the motor's thermal protection will activate and automatically shut off the pump to prevent damage.
Diagram illustrating the automatic operation of the pump, showing the water level thresholds for starting and stopping.
Figure 11: The pump automatically starts and stops based on water levels in the reservoir.
Image explaining thermal overload protection, stating that if water shortage causes high temperature, motor thermal protection will trigger and shut off the pump.
Figure 12: The pump includes thermal overload protection for enhanced safety and longevity.

8. Maintenance

Regular maintenance is essential to ensure the longevity and optimal performance of your condensate pump.

  • Cleaning Frequency: It is necessary to clean the pump reservoir, float, and filter basket at least every six months. More frequent cleaning may be required depending on the quality of the condensate and environmental conditions.
  • Cleaning Procedure:
    1. Disconnect the pump from the power supply before performing any maintenance.
    2. Carefully remove the top cover and detach the reservoir.
    3. Remove the float switch and the metal filter basket.
    4. Clean all components with warm, soapy water. Remove any sludge, debris, or mineral deposits.
    5. Rinse thoroughly with clean water.
    6. Reassemble all components, ensuring the float moves freely and the filter basket is properly seated.
    7. Reconnect the pump to the power supply.
  • Inspection: Periodically inspect the inlet and outlet tubing for any blockages, kinks, or signs of wear. Ensure all connections remain secure.

9. Troubleshooting

If you encounter issues with your condensate pump, refer to the following troubleshooting guide:

Problem Possible Cause Solution
Pump does not turn on No power; Clogged inlet/filter; Stuck float switch; Thermal overload activated. Check power connection and outlet; Clean inlet and filter basket; Inspect float for free movement; Allow pump to cool down if thermal overload was triggered.
Pump runs continuously or frequently Discharge line blockage; Check valve malfunction; Excessive condensate inflow. Check discharge line for kinks or blockages; Inspect check valve for debris; Ensure condensate inflow does not exceed pump capacity.
Water overflow from reservoir Pump failure; Clogged inlet/filter/discharge line; Float switch malfunction. Check power and pump operation; Clean all lines and filter; Inspect float switch; Verify safety switch wiring is functional.
Pump is noisy Debris in pump; Improper installation; Air in system. Clean pump reservoir and impeller; Ensure pump is on a flat, stable surface; Bleed air from the discharge line if necessary.

If the problem persists after attempting these solutions, please contact Aquastrong customer service for further assistance.

10. Warranty

The Aquastrong Condensate Pump (Model CDS320-1) comes with a 2-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use and service. Please retain your proof of purchase for warranty claims.

The warranty does not cover damage resulting from improper installation, misuse, neglect, unauthorized repairs, or acts of nature.

11. Customer Support

For technical support, warranty inquiries, or any questions regarding your Aquastrong Condensate Pump, please contact Aquastrong customer service. Professional technical support is available to assist you.

Please have your product model number (CDS320-1) and purchase information ready when contacting support.

© 2025 AQUASTRONG. All rights reserved.

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.