Category Archives: Portable Chillers

Boost Your Air-cooled Chiller Performance in Hot Weather with Adiabatic Pre-cooling System

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Has the recent hot weather taxed the performance of your air-cooled chiller?  Operating efficiency of an air-cooled chiller drops off quickly when temperatures soar above 95°F and can even cause the unit to shut down if it gets too hot.  What can you do to regain chiller efficiency?

Advantage Model M1D-10A, 10-ton portable air-cooled chiller shown with adiabatic pre-cooling system to provide full capacity during hot weather.

Advantage now offers an engineered packaged adiabatic pre-cooling system for its portable chillers that is easily retrofitted and will drop the incoming air temperature at the condenser by 10-15°F regaining previously lost capacity..

The system is quite simple, install the stainless steel frame work on the chiller, insert the evaporative media, fill the system with water and turn on the recirculating pump.  The pump takes water from the integral storage basin, and distributes it over the wetted media.  Hot air moving across the wetted media evaporates some of the water from the wetted media dropping the air temperature before it enters the chiller condenser coil providing vastly improved performance.  Contact your Advantage representative for more information.

 

Adiabatic pre-coolig system showing wetted media removed.

Injection Molder Selects Customized Bi-Temp Chiller

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While many injection molders use beside the press temperature control units fed by a centralized cooling system to provide precise temperature fluid to control the mold cooling process, Advantage recently completed a project using a more unconventional approach.  The molder, making packaging products, elected to purchase customized self contained chiller & temperature control units in a single package.  Advantage has been making its Bi-Temp Chillers since the early 1980′s primarily to support urethane process applications but have made many units for injection molders as well.

Typical circuit schematic of Bi-Temp chiller.

The Bi-Temp chiller is a single packaged unit containing a chiller and mold temperature control unit.  The chiller supplies a cool water source for cooling the temperature control unit and also cool water for the molding machine feed throat and often to the machine hydraulic system or an auxiliary hydraulic unit often used with electric molding machines.  The integral temperature control unit provides water for mold cooling at a temperature range from about 10 degrees above the chiller temperature to 250 degrees Fahrenheit.

The Bi-Temp chiller is very compact and requires a single power drop easing installation and saving valuable floor space.  Since the unit was purpose built, the molder was able to have all the features they wanted incorporated into the unit including a custom alarm indicator, gauges indicating when the unit is out of spec, and a signal from the unit that tells the molding machine that the temperature is out of spec.  This signal pauses the molding machine and signals the operator to take a look prior to making a significant amount of bad parts.

Advantage BI-1.5AS-920 Bi-Temp unit featuring a chiller and temperature control unit in a single compact package.

Advantage makes Bi-Temp units with capacities from 1.5 to 40 tons and with heating capabilities up to 48 kW.  For those molders that need two zones of temperature control Advantage also makes Tri-Temp chillers that include an integral chiller and two tempered water zones.