Over the last few weeks the Monday Morning Minutes posts have looked at pumping issues with multiple condensers and pumps. One of our most-received questions …
Parallel Pumping in Condenser Applications: Automatic Differential Pressure Control (Part 3)
Chilled water condensers are normally operated as constant-flow devices and the pumps serving them are constant-speed. Why would you ever use a variable-speed drive for …
Parallel Pumping in Condenser Applications: Limiting the Flow Rate (Part 2)
In part 1 of this series we offered an example condenser water pumping system. The design of this example is 800 GPM per condenser for a …
Parallel Pumping in Condenser Applications (Part 1)
Applying a single constant-speed pump for each condenser in a chilled water application is a normal design for the HVAC engineer. The chiller manufacturers suggest …
5 Effective Cooling Tower Treatment and Monitoring Strategies
In this fourth and final installment of our series on In August 2025, Essential Water Quality Management to Safeguard Health and Infrastructure, we will explore …
Protecting Your HVAC Operating Equipment Assets Requires Proper Water Quality Management
In this third installment of our series on Essential Water Quality Management to Safeguard Health and Infrastructure, we will discuss the importance of water …
5 Effective Cooling Tower Treatment and Monitoring Strategies
In August 2025, Central Harlem faced a serious public health crisis when an outbreak of Legionnaires’ disease sickened over 100 individuals and claimed seven lives. …
Unintended Consequences of Chemical Disinfection – Health Effects
Last week, we introduced this four-part series Essential Water Quality Management to Safeguard Health and Infrastructure. In the second installment of this series, we will …
Deppmann and AERCO Donate Supply-Filled Backpacks to Students
This July, R.L. Deppmann employees and their families came together for a Backpack Build sponsored by AERCO, assembling essential school supplies for students in …
Essential Water Quality Management to Safeguard Health and Infrastructure
Water is our most critical asset. Whether it’s flowing through domestic plumbing, circulating in cooling towers, or feeding HVAC systems, water quality directly affects both …