Pfannenberg’s Cooling Units Used to Ensure Efficiency and Uptime in Vaccine Production Settings

How Cooling units maintain proper operating temperatures for automation system components

Vaccine production requires highly precise temperature and humidity control at all stages of production: manufacturing, packing, and storage. During production of pharmaceuticals, precise temperature control is essential so that temperature fluctuations do not interfere with the manufacturing process. Throughout the process of manufacturing, distributing and storage, it is essential that downtime is eliminated and repair costs are kept to a minimum. To carry this out, vaccine producers relied on Pfannenberg’s cooling units which can operate 24/7 and on the Pfannenberg team, which offers the highest degree of service quality.

Pfannenberg’s DTS 3245 Series Cooling Units have been installed in COVID vaccine production settings to ensure efficiency and maximal uptime by providing critical cooling to electrical components of automation systems in mass vaccine production.

The Pfannenberg DTS 3000 Series cooling units offer superior capacity, more efficient design, and a robust build to ensure a longer service life of the cooling unit. Customizable to pharmaceutical environments like vaccine production, the DTS 3000 Series features a sealed cabinet that provides contaminant-free component cooling without adding heat to the local environment. It provides an excellent economic solution where plant water is available or when used in conjunction with a process chiller.  Its sealed design and available stainless steel, NEMA Type 4/4X construction provides a maintenance free solution with no exposed fans or maintenance of filters required.

The DTS 3000 Series Cooling Units are designed to take up less space while delivering greater cooling capacity. These units boast the highest power to cooling ratio available on the market. These cooling units are built with a sealed, yet “open design,” so critical components can be accessed easily for maintenance purposes. The refrigeration system is totally redesigned with longer and more robust service life in mind helping end-users focus on uptime and prevent disruption in operation.


Introducing Pfannenberg’s New PQF Premium Quick Filter

A Simple and Effective New Way to Protect Critical Equipment from Particulates and Oily Mist

Pfannenberg announces its PQF – Premium Quick Filter – a new, easier way to filter out particulates and oily mist from an air inlet on critical equipment enclosures.

This simple and innovative solution increases the life of equipment and reduces downtime by solving one of the most common problems causing equipment failure-overheating caused by a clogged airflow path.

How it Works?

Secure magnetic mounting on the exterior of the air inlet makes for quick and easy installation and replacement. Installation takes less than 5 seconds and requires no training or shutdown procedure. No drilling, tapping or gluing is required, and the magnetic installation allows the filter to be installed vertically, horizontally or in any other position to fit around the air inlet.

Each PQF roll has 60 tearable, disposable sheets providing enough filter replacement for up to one year. The PQF is available in three different lengths: 200mm (8inch), 300mm (12inch) and 400mm (16inch) and is suitable for a variety of applications and air inlet sizes.

The design saves time by eliminating multiple trips to the warehouse to cut filter mat to size when changing out a clogged filter and eliminates messy washing of filters using harmful chemicals.

Studies have shown up to 30% savings on time and labor for filter maintenance.


Increase the Life of Your Equipment & Reduce Down Time with Pfannenberg’s New PQF!



Any Question? Contact us Today!

Now Available: DTS 34X1C and 36X1C Series Cooling Units – Highest Capacity For Industrial Enclosures

Are you interested in discovering the latest in high powered, durable, and efficient enclosure cooling technology? We are pleased to announce the launch of the New DTS 34X1C and DTS 36X1C Series Cooling Units which offer many benefits: higher capacity, more efficient design, and an even more robust build for long service life.

The new DTS 34X1C and DTS 36X1C Cooling Units (in replacement of our DTS 34X1 and 36X1 models) feature the highest cooling capacity in the smallest possible footprint.

DTS 34x1-36x1C_group

The DTS 34X1C delivers 1.5ton of cooling capacity at normal operation, and the DTS 36X1C up to 2ton capacity. Both units are designed with the same dimensions and mounting cutout so that they can be easily interchanged depending on cooling demand. They are also backwards compatible with Pfannenberg’s older designs, making them a versatile option for enclosure cooling. The refrigeration system has been totally redesigned, however, to ensure a longer and more robust service life.

The DTS units’ electrical system has been updated to include a smaller and simpler power connecter, which reduces the protrusion of the connecter into the cabinet and in turn frees up valuable real estate. Other features include an easy panel access and a front status LED display, which help to simplify maintenance and lengthen your service intervals. What’s more, these cooling units were built with an “open design” so critical components can be accessed easily during maintenance. These design updates helping end users to focus on uptime and prevent disruptions to operation.

Other features, like active condensate management, coated corrosion resistance condenser coils, and high flow evaporator fans, are designed for success in critical applications.

These units are ideal for high heat loads, especially in high horsepower drive enclosures. They are available in a range of different NEMA or UL Type ratings – 12/3R/4/4X – and different voltages. Soon, options for low ambient, integrated heater, and Modbus connectivity will be available as well.


The new DTS 34X1C and 36X1C will replace the old DTS 34X1 and 36X1 models. Please contact your local Pfannenberg Sales representative for availability of the older design or reach out to for more information.

For more information about the updated DTS cooling units, click here!.

Pfannenberg’s DTS Cooling Units to Cool a City of Los Angeles Water Treatment Plant

Recent work done at a City of Los Angeles Water Treatment Plant required the improvement of a large odor control system. For the odor control system to work properly, 200HP fans are needed and to meet the cooling needs of the system, the City of Los Angeles considered a variety of Thermal Management options.

Pfannenberg’s  DTS 3681 (NEMA Type 4/4x)  Side Mounting Cooling Units were selected for the job. The stainless-steel cooling units have a large capacity, at almost two tons. They are specially designed for long term use in high temperature, high ambient environments, such as the odor control system.


The DTS 3681 cooling units are self-protecting from harsh environments due to a number   of features, including the location of the control electronics within a dry, cool interior circuit. All the constituent components comply with the highest standards which makes these cooling units, the best option for protecting critical electronics.

Pfannenberg DTS Cooling Units closed loop design isolates the external ambient air from the internally conditioned air eliminating the risk of contaminants entering the cabinet. The hermetically sealed compressor guarantees 100% cooling capacity efficiency. The absence of any refrigerant fill valves eliminates leak paths.

Pfannenberg’s DTS 3681 Cooling Units are sure to last long in serving the odor control system. Reasons for this include the high airflow backward curve impeller fan, which provides high airflow in a long lasting, single bearing design. This is in contrast to the typical two-bearing blowers, with the DTS 3681 Cooling units boasting nearly twice the lifespan!

Preventing Condensation in Electrical Enclosures

Condensation is the act of a substance transitioning from its gas form to its liquid form. Condensation is a common phenomenon in nature, and we have all seen condensation of water on a bathroom mirror or on the surface of a glass holding a cold drink. Condensation occurs when the temperature of a surface drops below the dewpoint temperature – a dynamic, not static, temperature point that depends upon the interplay between humidity and ambient temperature.

While condensation may look beautiful in the form of the morning dew, it can wreak havoc with valuable electronic equipment. This moisture can cause rust, corrosion, short circuiting and electric shock – proving at the least to be expensive and at the most to be dangerous.

How to prevent condensation in Electrical Cabinets?

Pfannenberg, which specializes in providing solutions for thermal management systems, has its finger on the pulse of how to prevent condensation in enclosures – such as electrical cabinets – that need to be kept free of moisture.

The first tip has to do with controlling the enclosure temperature. “Traditionally, in an enclosure, we are going to recommend keeping the temperature somewhere between the 85-degree and 95-degree Fahrenheit mark,” says Pfannenberg sales representative Adam Wells. “That generally represents a comfortable place for the electronics as well as for keeping it warm enough to avoid that dew point temperature.”

Pfannenberg experts also recommend using dehumidifiers in enclosures with high humidity or that are not completely sealed to prevent condensation. Typical dehumidifiers use a desiccant or some type of silica gel to wick moisture out of the air. Air conditioning units can also act to collect any condensate that may build up on the internal side of an enclosure and be dispersed into the environment with the help of a condensate evaporator.

Air conditioning units can also act to collect any condensate that may build up on the internal side of an enclosure and be dispersed into the environment with the help of a condensate evaporator.

Hygrostat FLZ 600

An unusual device known as a hygrostat can also be used to monitor the humidity levels in an enclosure. Originally made of horsehair, hygrostats are now made with synthetic hairs that expand and contract depending on the amount of water in the air. The same can be seen happening in human hair – for example when hair gets curlier on a humid day.

Another way to open the door to condensation is, literally, by opening a door. Pfannenberg sales representative Chris Marlow explains, “If you have an enclosure, and you have a cooling device in there, and you don’t turn off the device when you open the doors, you can get condensation build up inside that enclosure just from exposing air to that decrease in temperature.”


For more information on how to protect valuable electric equipment from condensation, visit Pfannenberg’s lively webinar discussion on this topic at

Pfannenberg’s Cooling Units Help Support Bottling Inspection

We understand as a consumer that it can get aggravating when you purchase a bottled beverage and the packaging is either defective or the container is not filled properly. It is crucial that beverage and food manufactures implement an inspection system – not only for sanitary reasons, but also for product quality.  Once quality is compromised, the manufacturer loses brand reputation.

Common Problems:

  • Fill Level is Over/Under Target
  • Cracked Cap/Seal
  • Missing Cap
  • Broken/Tampered Band
  • Wrong Cap Color

Pfannenberg’s NEMA Type 4/4X DTS Washdown Stainless Steel Cooling Units fit in perfectly with inspection machines. Inspection equipment (vision systems and x-ray equipment) generate a lot of heat that needs to be managed.  As products move rapidly down the line the inspection machines have to quickly provide an alert when a defective product is detected and signal removal of the defective product.  These inspection machines have hi-res cameras and stainless steel housing to be compatible with the high speed filling lines that need to be cooled.  Pfannenberg’s DTS units are a perfect fit for this equipment and come in various sizes and capacities depending on the requirements.

DTS Series Cooling Units:

  • The wide fin spacing is less susceptible to clogging from dirt buildup which can cause the unit to work harder and hamper efficiency
  • NEMA Type 4/4X Stainless Steel to repel contaminants in food grade applications and to provide for easy washdown
  • High temperature models can operate in ambient temperatures up to 140 °F (60 °C)

As consumers, when we make a purchase we expect the product to be perfect – both taste and overall look (packaging). Nothing would be more upsetting then paying for a beverage and having it filled half full or damaged.  Without the cooling necessary for these inspection systems, the quality of the final product would suffer.

Click here to learn more about Pfannenberg’s DTS Cooling Units

Success Story: DTS Cooling Unit back for service after 15 Years of use!

At Pfannenberg, we are delighted to learn how satisfied our customers are with our products. When we received an old DTS Cooling Unit back for service after 15 years of use, we could do nothing but offer a full-service repair on the unit!

This DTS Unit was sold by Pfannenberg to an integrator back in 2004. The final customer, a manufacturer of fencing, railing and hardware has been a Pfannenberg customer since 2011 and has always been satisfied with this product. This DTS Cooling unit is used to keep the blow-molding machine cool and operational.

The reason for returning the unit to Pfannenberg was not to upgrade to a newer product, but to perform routine maintenance on the unit.  After a full evaluation, our service technician replaced all defective components to get the unit back to full running status, meeting a good refrigeration delta temperature condition. Additionally, preventative measures were taken by replacing fan motors, capacitors and relays, as well as a thorough cleaning of the condenser coil for proper heat dissipation.


This success story demonstrates once again the robustness and service-friendliness of Pfannenberg Thermal Management products. Pfannenberg customers can rely on reliable products and customer service to keep their application and processes up and running, even after 15 years.

Contact us for Preventative Maintenance on your units or recommended spare parts!

Pfannenberg concludes exclusive agreement on thermal management solutions with the BMW Group

Thermal management specialist Pfannenberg has concluded an exclusive agreement with the BMW Group on thermal management solutions for the production plants at all sites worldwide.

Picture Source: BMW AG

Pfannenberg’s energy-efficient, low-maintenance and long-lasting thermal management solutions as well as our global presence were decisive in the conclusion of this partnership. Depending on site, environment and application, we offer a wide range of thermal management solutions – from filterfans® and air/air heat exchangers to air/water heat exchangers and cooling units.

The perfect cooling solution for any requirement

Whether painting or assembly work, manufacturing in the automotive industry uses many different processes at the same time and production efficiency is a top priority. Cooling requirements vary depending on the application, and a precise analysis of the needs is necessary to define the appropriate performance. Otherwise, an oversized system can lead to higher energy consumption. In this area, Pfannenberg offers the right thermal management solution for every cooling requirement and ensures an energy-efficient and smooth production sequence. In particular, Pfannenberg’s ECool series cooling units stand out for their high performance, intelligent control and exceptionally easy-to-maintain design.

Translated with (free version)

We are very pleased about this cooperation and look forward to the coming years as a partner of the BMW Group. Thanks to the outstanding cooperation of the technical team, the customer service and our account managers, we can offer the BMW Group a convincing all-round packagesays Jan Lautenschläger, Germany Sales Director at Pfannenberg.In the production area, an energy-efficient cooling concept is becoming increasingly important and here in particular regarding the CO² emissions along the production chain. Major customers such as BMW are demanding a respective company-wide solution with a sustainable concept for the future. Here, the focus is clearly on energy efficiency and perceivable quality.

Convincing energy efficiency and ease of maintenance

BMW group’s main requirements were focused on energy efficiency and maintenance needs. Thanks to the installation of test Cooling Units, Pfannenberg convinced in particular with the εCOOL series. A realistic energy consumption analysis facilitated the simulation of the expected energy consumption in various production sites. This analysis showed that due to low ambient temperatures, the real environment will often not require the unit to run at full power. This is where the Pfannenberg’s intelligent energy-saving mode comes into play, with the “cooling mode” being triggered when the required cabinet temperature is exceeded. In addition, the standardized installation dimensions and housing cutouts allow easy replacement of cooling units and quick adaptation to changing environmental conditions and applications.

Spring Cleaning – 3 Steps you Can Take to Prepare your Cooling Units for the Stress of the Summer Heat

With hotter temperatures just around the corner we’ve put together this Preventative Maintenance Video to help you prepare your enclosure cooling units for the stress of summer heat.

To avoid any critical component failure, follow the 3 simple steps below to help ensure your enclosure cooling units stay up running all summer. Don’t Wait Until it’s Too Late!

STEP 1: Make Sure your Condenser Coils are Clean

The condenser coils are one of the most important components of your Cooling Unit, they ensure the reliable, cost efficient and long-term operation of your unit. When dirt, dust or debris builds up on your condenser coils, it can have a major effect on the performance of your cooling unit.

STEP 2: Check your Fan Motors and Inside/Outside Electrical Components

In order to prevent failure, the cooling unit’s fan motor and fan blades need to be inspected to determine wear and damage.  All the electrical components in the control box also need to be checked to make sure all connections aren’t damaged or loose.

STEP 3: Set your Unit to the Recommended Proper Temperature

Pfannenberg sets the dip-switches on the control board to 95°F/35°C in the factory, and recommends that the dip switch settings are not altered.

*Having the dip-switch temperature set to a lower point can cause damage not only to the cooling unit, but to the composure as well.  Changing the set point can cause the cooling unit to run excessively, possibly causing damage to the compressor and other components.  It can also cause the enclosure to produce condensate, possibly damaging electrical components inside the cabinet.

Contact us for recommended spare parts or getting your orders in now for new or replacement cooling units.

Why Pfannenberg’s Cooling Units Do Not Need A Filter

Pfannenberg’s ‘service-friendly’ DTS cooling units provide effective cooling for tough industrial or outdoor applications. Their closed-loop designs ensure that ambient air, dust, and humidity are not passed to the interior of the enclosure, thereby keeping sensitive and critical electronics safe from contamination and in prime operating condition.

Pfannenberg’s DTS Cooling Units filter-less design reduces the amount of required maintenance needed for operation in dirty environments. Indeed, if a dirty filter is not cleaned or replaced, it can become clogged which severely limits its efficiency and result in poor performance.

Filter-Less Design

  • High Airflow Backward Curve Impeller Fan
    Provides high airflow in a long lasting, single bearing design. Higher airflow pushes dirt through wider fin spacing allowing for less clogging which avoids system failure.
  • Large Fin Spacing
    Large condenser fin spacing allow for longer maintenance periods, even without an additional Nano coating. They are less susceptible to clogging from dirt buildup which can cause the unit to work harder and hamper efficiency.
  • Corrosion Protection
    The DTS Outdoor and wash-down units have a special coating on pipes and coils on the ambient side of the unit to provide maximum protection from saltwater, sour gas, and other corrosive substances.
  • Self-Protected Electronics
    Our unit is uniquely designed to protect itself in NEMA 3R, 4, and 4X environments. An example of this is the location of our control electronics within our dry, cool interior circuit.


How to Avoid System Failure

As with any unit located in a dirty environment, the components around the external air circuit require periodic cleaning. To avoid any critical component failure, follow the 3 simple steps below to help ensure your enclosure cooling units stay up running:

  • STEP 1: Make Sure your Condenser Coils are Clean
    When dirt, dust or debris builds up on your condenser coils, it can have a major effect on the performance of your cooling unit.
  • STEP 2: Check your Fan Motors and Inside/Outside Electrical Components
    The fan motor and fan blades need to be inspected to determine wear and damage.  Also make sure electrical components aren’t damaged or loose.
  • STEP 3: Set your Unit to the Recommended Proper Temperature
    Pfannenberg recommends the dip-switches on the control board to 95°F/35°C in the factory.

All maintenance should be performed by qualified personnel, following all safety procedures. To help you perform your preventative maintenance, Pfannenberg realized a simple video following the 3 above steps: Watch the Full Video Now!