Choosing and Installing Your Beckett Condensate Pump

Here are a few key steps and tips for the proper selection and installation of your Beckett Condensate Pump. For additional tips or support, contact our customer service team at or 866-466-4319.

Step 1: Size the Pump to Match the Application
Always review the aount of condensate water producted from the HVAC system. Beckett’s CB15 & CB20 series pumps with a ½ gallon tank can handle the typical amount of condensate produced from a residential HVAC system.

Step 2: Will the Pump Lift Water High Enough in the Application?
Condensate pumps move less water the higher the peak of the discharge tubing is placed. Define how high this discharge tubing peak will be above the condensate pump and compare that to the performance table to be sure you choose the correct pump. See two examples below:

1. Residential HVAC system located on the floor of a single-story home, peak lift point will be to clear an 8-foot wall. Peak lift point=8 feet, best pump selection would be CB15

2. Residential HVAC system located in the basement of a single-story home, peak lift point will be to clear an 8-foot wall on the upper level. Peak lift point=16 feet

Peak Flow HVAC Beckett Pumps


Install Condensate Pump Beckett

Note: An additional application issue might be the length of the horizontal run of the discharge tubing. A general rule of thumb is a loss of 6” lift for every 10’ of horizontal run for tubing sizes below ½”. This reduction in lift is not a concern after the peak lift point if you can slant the discharge tubing to take advantage of gravity clearing the tubing.

Step 3: Locate the Condensate Pump
Beckett CB15 & 20 series pumps have a 6-foot power cord with a grounded plug for power so be sure the pump’s location allows access to a properly grounded receptacle. The pump should be located below the drain pan of the HVAC system so gravity allows a natural flow to the condensate pump inlet. The pump can sit on the floor or be mounted onto the wall using the mounting tabs. Use a level to ensure that the pump is installed level as the float switches inside depend on water levels to turn on and off.

Step 4: Install Inlet and Discharge Tubing
Beckett’s CB15 & 20 series pumps have 3 inlet holes on the lid that can be pressed out to best match the installation. Be sure the drain tubing extends past the lid of the pump at least 1” to avoid splashing. Discharge tubing is connected to the 3/8” barb outlet, a hose clamp or zip tie can be used to ensure drip-free operation. It is best to slant the discharge tubing down after the peak so gravity helps clear the tubing.

Step 5: Safety Switch (depending on pump model)
Some Beckett condensate pumps include an additional safety switch which is designed to be wired in series into the low voltage thermostat circuit to shut down the source of the condensate water in the event of a pump failure. Using this feature may prevent overflow of the pump. This safety switch can also be wired to an external alarm as a signal that pump flooding is possible.

Always reference included installation manuals for safety warnings

Contact Beckett Customer Service at or 866-466-4319 for any questions or support during your pump selection or installation.

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