Snow River™ Refrigeration System
(-96C and -50C)

<a href=”http://snowriverchillers.com/wp-content/uploads/2017/01/refsys2-1.jpg” data-mce-href=”http://snowriverchillers.com/wp-content/uploads/2017/01/refsys2-1.jpg”><img class=”alignright size-large wp-image-3475″ src=”http://snowriverchillers.com/wp-content/uploads/2017/01/refsys2-1-411×517.jpg” alt=”refsys2″ width=”411″ height=”517″ data-mce-src=”http://snowriverchillers.com/wp-content/uploads/2017/01/refsys2-1-411×517.jpg” /></a>Snow River™ Refrigeration System (-96C and -50C) A direct expansion refrigeration system with a programmable temperature range from ambient to -96C that is capable of being fully integrated to supply stable, precise and reliable cooling.The Snow River™ Refrigeration System provides reliable, stable and cost effective cooling down to ultra low temperatures. This system can be configured to incorporate any thermal load including those offered by Abbess such as a thermal plate, finned heat exchanger or a cold trap. These systems eliminate the high running cost of liquid nitrogen(LN2) systems by efficiently reaching temperatures as low as -96C. Snow River™<strong>Refrigeration Systems can be used for:</strong><li> Thermal Vacuum Chambers</li><li>Environmental Test Chambers (with altitude, temperature, and humidity control)</li><li>Ultra-low Temperature Freezers</li><li>Lyophilizers (freeze dryers)</li><li>Lasers, NMRs, Liquid chromatography, Mass Spectrometry, Cold Traps, and other devices</li><li>Cryogenic Storage</li><li>Biological Storage (bio refrigeration)</li><li>DNA Storage (sample preservation)</li><li>Forensic Samples</li><li>Genetic Sample Storage (animal, plant, archaeological)</li><li>Cold Traps</li><li>Satellite Testing (space simulation)</li>
<strong>Integration of your process or thermal load with Snow River™ is easy! </strong>The Abbess Instruments Snow River™ Refrigeration System consists of two refrigeration compressor loops working together to cool an evaporator to temperatures as low as -96C. These evaporators can be customer supplied or custom built by Abbess to meet your specific needs. Abbess’s most common application is using a heat exchanger at the evaporator to cool a sealed bath of heat exchange fluid which can then be easily piped to the application’s heat load such as:<li>Thermal plates</li><li>Thermal shrouds</li><li>Cold fingers</li><li>Cold Traps</li><li>Storage Coolers</li><li>Storage Cabinets Require a system capable of heating and coolings?<br />
Check out the <strong><a href=”http://snowriverchillers.com/snow-river-thermal-system/” data-mce-href=”http://snowriverchillers.com/snow-river-thermal-system/”>Snow River™ Thermal System</a></strong> and <strong><a href=”http://snowriverchillers.com/snow-river-cascade-thermal-systems/” data-mce-href=”http://snowriverchillers.com/snow-river-cascade-thermal-systems/”>Snow River™ Cascade Thermal System</a></strong>.</li>
<strong>Our Snow River™ Refrigeration Systems are capable of -96C! </strong>These refrigerators can be used in conjunction with our vacuum systems to provide space simulation profiles or they can be customized to provide cooling for a variety of other applications such as medical storage and freeze drying. These systems are entirely customizable and can be sized to cool your product, environment or working fluid at various rates. Our systems have been proven to be reliable and low maintenance in simulation systems produced for NASA and other prominent aerospace industry leaders for years and have earned a reputation for quality, performance and, control that is simply unmatched by any of our competitors. Abbess also provides support both on-site and off-site for all of our refrigeration systems.<strong>Refrigeration Systems that come in a variety of sizes and configurations to fit your application! </strong>Refrigeration and vacuum systems can also be custom configured in sizes ranging from 2544 BTUs/hr to 86511 BTUs/hr systems and can be designed to operate at low (-50C) and ultra-low (-96C) temperatures. These systems can be used in conjunction with our vacuum systems to provide space simulation profiles or they can be custom-made to provide cooling for a variety of other applications such as biological/medical storage and freeze drying. These systems are entirely customizable and can be sized to cool your product, environment or working fluid to specific temperatures at various rates.<strong>Flexible Control and Diagnostic Capabilities </strong>Abbess offers a variety of control diagnostic and test data packages that can fit your specific application and budget. These control systems could be as basic as a simple thermostatic control or as advanced as a data logging touch screen PC interface capable of integrated system diagnostics and test data, and networking of multiple chillers to handle large or variable loads. Stand-alone PID Temperature controllers can also be utilized for simple, precise thermal control and profiling.<strong>Touch Screen PC Control Option </strong>Touch screen PC control provides total and complete control and monitoring capabilities of your refrigeration system. The PC interface allows for data logging of system temperatures and pressures as well as full remote control of PID temperature loops. The interface is capable of providing self-diagnostic information to the user.<br />
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Snow River™ Cascade Thermal System (-96C to +200C)

<img src=”data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7″ data-wp-preserve=”%3Cscript%3E%3Cbr%20%2F%3E%0A%20%20(function(i%2Cs%2Co%2Cg%2Cr%2Ca%2Cm)%7Bi%5B’GoogleAnalyticsObject’%5D%3Dr%3Bi%5Br%5D%3Di%5Br%5D%7C%7Cfunction()%7B%3Cbr%20%2F%3E%0A%20%20(i%5Br%5D.q%3Di%5Br%5D.q%7C%7C%5B%5D).push(arguments)%7D%2Ci%5Br%5D.l%3D1*new%20Date()%3Ba%3Ds.createElement(o)%2C%3Cbr%20%2F%3E%0A%20%20m%3Ds.getElementsByTagName(o)%5B0%5D%3Ba.async%3D1%3Ba.src%3Dg%3Bm.parentNode.insertBefore(a%2Cm)%3Cbr%20%2F%3E%0A%20%20%7D)(window%2Cdocument%2C’script’%2C’https%3A%2F%2Fwww.google-analytics.com%2Fanalytics.js’%2C’ga’)%3B%3C%2Fp%3E%0A%3Cp%3E%20%20ga(‘create’%2C%20’UA-845105-4’%2C%20’auto’)%3B%3Cbr%20%2F%3E%0A%20%20ga(‘send’%2C%20’pageview’)%3B%3C%2Fp%3E%0A%3Cp%3E%3C%2Fscript%3E” data-mce-resize=”false” data-mce-placeholder=”1″ class=”mce-object” width=”20″ height=”20″ alt=”<script>” title=”<script>” /><b>A modular liquid circulating thermal system capable of </b><b>temperatures in the range of -96C to +200C</b><b> that can be </b><b>fully integrated to supply stable, precise and reliable service.</b><dl id=”attachment_3412″ class=”wp-caption alignleft” style=”width: 284px;” data-mce-style=”width: 284px;”><dt class=”wp-caption-dt”><a href=”http://snowriverchillers.com/wp-content/uploads/2016/06/IMG_9080a.jpg” data-mce-href=”http://snowriverchillers.com/wp-content/uploads/2016/06/IMG_9080a.jpg”><img class=”wp-image-3412 ” src=”http://snowriverchillers.com/wp-content/uploads/2016/06/IMG_9080a-309×300.jpg” alt=”This -96C to 150C cascade thermal system provides modular and reliable thermal cycling.” width=”284″ height=”275″ data-mce-src=”http://snowriverchillers.com/wp-content/uploads/2016/06/IMG_9080a-309×300.jpg” /></a></dt><dd class=”wp-caption-dd”>This -96C to 200C system provides modular and reliable thermal cycling.</dd></dl><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>The Snow River™ Cascade Thermal System is the most flexible closed loop cooling and heating system offered by Abbess. This system utilizes both high and low stage compressors that work together to achieve the desired temperature with higher efficiency and deeper reach than a single stage or liquid nitrogen (LN2) system. Additionally, these systems eliminate the high running cost of liquid nitrogen systems and offer precise control across a wide range of temperatures from -96C to +200C.</span>Due to the Snow River™ Cascade Thermal Systems modularity and Abbess Instruments staff of skilled engineers, these systems can be configured to handle any thermal load. Abbess has been providing reliable and efficient systems for more than 30+ years to industry leaders.<b>Features of Standard Chiller Systems</b><li><b>PID temperature controllers <span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>offer precise thermal control and profiling. </span><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>These controllers provide stand alone setpoint control and profiling capability or can be networked using RS-485 to be monitored and manipulated from an Abbess or customer designed PC interface.</span></b></li><li><b>Programmable sealed bath temperature range: </b><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>-96C to +200C</span></li><li><b>Modular cooling units provide scalable cooling capacity that minimizes the need for field service with simple on-site unit replacement and installs.</b></li><li><b>Systems are replaced and installed in just a matter of minutes with no loss of fluid!</b></li><li>Cost-effective solution for reliable, stable and precise thermal control systems<ul><li>Eliminates high running cost associated with liquid nitrogen used in open loop cryo cooling and freon used in large-scale refrigeration systems. <span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>These systems provide a significantly improved return on investment compared to other ultra-low temperature cooling systems.</span></li><li><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Controllable bath temperature provides for a better temperature gradient across load at steady state temperatures. Reduced cold spots that are experienced with liquid nitrogen cooling.</span></li><li><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Independent thermal load and bath control allows for fast and precise temperature control</span></li>
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<b>Optional Features of Chiller Systems</b><li><b>Flexible Control Interface Options</b><ul><li>Touchscreen PC control for complete control and monitoring of a single or of multiple Snow River™  thermal systems.</li><li>System capable of monitor each  Snow River™  thermal systems temperature, pressure, faults and other conditions.  (Self-diagnostic capabilities)<ul><li>Allow for the PC controller to make appropriate system changes to correct deviation from operational parameters.</li>
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</li><li>Systems with multiple Snow River™ systems have a recruitment function that can recruit and/or deactivate system modules as needed.</li><li>Secure remote capabilities facilitate monitoring and operations</li><li>Advanced thermal profiling control</li>
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</li><li><b>Full integration of the systems to meet customer specifications of any scale <span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>(including but not limited to…)</span></b><ul><li>Vacuum Chambers</li><li><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Heat Exchangers</span></li><li><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Thermal Plates </span></li><li><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Thermal Shrouds</span></li><li><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Cold Fingers</span></li><li><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Cold Traps</span></li><li><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Thermally Regulated Bio</span><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>-Storage Rooms</span></li><li><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Thermal </span><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Storage Cabinets</span></li>
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<dl id=”attachment_3420″ class=”wp-caption aligncenter” style=”width: 687px;” data-mce-style=”width: 687px;”><dt class=”wp-caption-dt”><a href=”http://snowriverchillers.com/wp-content/uploads/2016/06/control-1.jpg” data-mce-href=”http://snowriverchillers.com/wp-content/uploads/2016/06/control-1.jpg”><img class=”size-large wp-image-3420″ src=”http://snowriverchillers.com/wp-content/uploads/2016/06/control-1-687×315.jpg” alt=”Control Panel” width=”687″ height=”315″ data-mce-src=”http://snowriverchillers.com/wp-content/uploads/2016/06/control-1-687×315.jpg” /></a></dt><dd class=”wp-caption-dd”>Control Panel</dd></dl><br /><b>Capabilities and Performance </b><li>  <strong>Fast Heat Transfer Rate To And From Thermal Loads </strong>due to preconditioning of thermal fluid<br /><table width=”698″><tbody><tr><td colspan=”7″><strong>Snow River™ Thermal Systems</strong></td>
</tr><tr><td rowspan=”2″>Model</td><td rowspan=”2″>Theoretical Cooling Capacity [W]</td><td colspan=”3″>Specification for thermal transfer fluid</td><td colspan=”2″>Specification for Unit</td>
</tr><tr><td>Heating Capacity [W]</td><td>Min Temp [°C]</td><td>Max Temp [°C]</td><td>Unit Operating Voltage [V]</td><td>Unit Length/Width/Height [in]</td>
</tr><tr><td>C40-2</td><td>735(at -40 °C)<p><br /></p><p>1775(at -20 °C)</p></td><td>3000</td><td>-50</td><td>200</td><td>220</td><td>63.25/35.375/37.5</td>
</tr><tr><td>C40-4</td><td>1,500 (at -40 °C)<p><br /></p><p>3,600 (at -20 °C)</p></td><td>3000</td><td>-50</td><td>200</td><td>220</td><td>63.25/35.375/37.5</td>
</tr><tr><td>C40-6</td><td>2,200 (at -40 °C)<p><br /></p><p>5,225(at -20 °C)</p></td><td>3000</td><td>-50</td><td>200</td><td>220</td><td>63.25/35.375/37.5</td>
</tr><tr><td>C40-7.5</td><td>2,750 (at -40 °C)<p><br /></p><p>6,600(at -20 °C)</p></td><td>3000</td><td>-50</td><td>200</td><td>460</td><td>63.25/35.375/37.5</td>
</tr><tr><td>C40-13</td><td>4,550 (at -40 °C)<p><br /></p><p>10,925(at -20 °C)</p></td><td>3000</td><td>-50</td><td>200</td><td>460</td><td>63.25/35.375/37.5</td>
</tr><tr><td>C40-15</td><td>5,475 (at -40 °C)<p><br /></p><p>13,150(at -20 °C)</p></td><td>3000</td><td>-50</td><td>200</td><td>460</td><td>63.25/35.375/37.5</td>
</tr><tr><td><br /></td><td><br /></td><td><br /></td><td><br /></td><td><br /></td><td><br /></td><td><br /></td>
</tr><tr><td>C80-2</td><td>440 (at -80 °C)<p><br /></p><p>1,015(at -50 °C)</p></td><td>3000</td><td>-96</td><td>200</td><td>220</td><td>63.25/35.375/37.5</td>
</tr><tr><td>C80-4</td><td>880 (at -80 °C)<p><br /></p><p>2,030 (at -50 °C)</p></td><td>3000</td><td>-96</td><td>200</td><td>220</td><td>63.25/35.375/37.5</td>
</tr><tr><td>C80-6</td><td>1,325(at -80 °C)<p><br /></p><p>3,050(at -50 °C)</p></td><td>3000</td><td>-96</td><td>200</td><td>220</td><td>63.25/35.375/37.5</td>
</tr><tr><td>C80-7.5</td><td>1,650 (at -80 °C)<p><br /></p><p>3,800(at -50 °C)</p></td><td>3000</td><td>-96</td><td>200</td><td>460</td><td>63.25/35.375/37.5</td>
</tr><tr><td>C80-13</td><td>2,865 (at -80 °C)<p><br /></p><p>6,650(at -50 °C)</p></td><td>3000</td><td>-96</td><td>200</td><td>460</td><td>63.25/35.375/37.5</td>
</tr><tr><td>C80-15</td><td>3,310 (at -80 °C)<p><br /></p><p>7,635(at -50 °C)</p></td><td>3000</td><td>-96</td><td>200</td><td>460</td><td>63.25/35.375/37.5</td>
</tr>
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</table><p>The C80-4 model is our most popular model used for thermal control of thermal plates and shrouds within 24” vacuum test and process chambers. This model is capable of pre-cooling 20 gallons of silicone oil to -96C in approximately 4 hours and allows the system to cool a 36-pound (16.3 Kg) aluminum plate from +100C to -90C in about 1 hour. Our larger C80-6 system has been used in the past to cool a copper thermal shroud weighing nearly 1000 Lbs to -80C in just a few hours. By pre-cooling a sealed bath of silicone oil (-96C) and then pumping the cooled fluid through the heat load faster ramp rates are achieved. A pre-cooled fluid also allows for efficient cooling, better gradients across the load, more versatile plumbing configurations and simple system installation.</p><p><strong>Abbess’s thermal systems are available in a variety of sizes and configurations to fit your application.</strong></p><p>Thermal and vacuum systems can also be custom configured in sizes ranging from 440W (1500 BTUs/hr) to (13150 Watts) 45000BTUs/hr systems and can be designed to operate at low (-50C) and ultra-low (-96C) temperatures. These systems can be used in conjunction with our vacuum systems to provide space simulation profiles or they can be custom-made to provide cooling for a variety of other applications such as biological/medical storage and freeze drying. These systems are entirely customizable and can be sized to cool your product, environment or working fluid to specific temperatures at various rates. Abbess Snow River™ Thermal systems can be configured with air or fluid heat rejection. Redundant heat rejection options are also available.</p><p>Our systems have been proven to be reliable and low maintenance in simulation systems produced for NASA and other prominent aerospace industry leaders for years and have earned a reputation for quality, performance and, control that is simply unmatched by any of our competitors.</p></li>
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<tbody><tr><td valign=”top” width=”50%”><h2><strong>Industries Served</strong></h2><ul><li>Biological and Life Sciences Research</li><li>Pharma and Biopharma</li><li>Biological Production</li><li>Chromatography</li><li>Mass Spectrometry</li><li>Manufacturing and Processing</li><li>Industrial Processes</li><li>Product Testing</li><li>Forensics</li><li>Cold Chain Temperature Control</li><li>Aerospace Testing</li><li>Satellite Testing</li>
</ul><h2><strong>Laboratory Uses</strong></h2><ul><li>Chillers for laboratory devices<ul><li>Lasers</li><li>NMRs</li><li>Liquid Chromatography</li><li>Mass spectrometers</li>
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</li><li>Genetic sample storage (genomics preservation)</li><li>Large and/or multi-zone insect growth chambers</li><li>Laboratory freezers</li>
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</td><td valign=”top” width=”50%”><h2><strong>Research & Development/ Quality Assurance</strong></h2><ul><li>Thermal Shock Testing</li><li>Environmental Test Chambers with control of<ul><li>Altitude</li><li>Temperature</li><li>Humidity</li>
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</li><li>Lyophilizes (freeze dryers)</li><li>Cold Chain Temperature Control</li><li>Altitude and Thermal Package Testing</li><li>Shipment Testing</li>
</ul><h2><strong>Sample Storage and Preservation</strong></h2><ul><li>Thermal cycling incubators</li><li>Biological storage and refrigeration</li><li>Short-term DNA storage</li><li>Precise biological genetic sample preservation</li><li>Forensic sample storage</li><li>Large and/or multi-zone insect growth chambers</li>
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<br /><strong>Integration of your process or thermal load with Snow River™ is easy!</strong>The Abbess Instruments Snow River™ Cascade Thermal System consists of two refrigeration compressor loops working together to cool an evaporator to temperatures as low as -96C. The thermal cascade chiller system that makes up part of the Snow River™ system uses R-404 refrigerant in one of the compressor loops to cool an inter-stage heat exchanger that is used to condense an ultra-low temperature refrigerant (R-508B). The ultra-low temperature refrigerant is circulated by the second low stage compressor and vaporized in an evaporator to cool the given heat load. These evaporators can be customer supplied or custom built by Abbess to meet your specific needs. Abbess’s most common application is using a heat exchanger at the evaporator to cool a sealed bath of heat exchange fluid which can then be easily piped to the application’s heat load such as:<li><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>   </span> <span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Thermal plates</span></li><li><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>   </span> <span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Thermal shrouds</span></li><li><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>   </span> <span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Cold fingers</span></li><li><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>   </span> <span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Cold Traps</span></li><li><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>   </span> <span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Storage Coolers</span></li><li><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>   </span> <span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Storage Cabinets</span></li>
<span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>If you require temperatures in the range of -50C to 200C check out our </span><a href=”http://snowriverchillers.com/snow-river-thermal-system/” data-mce-href=”http://snowriverchillers.com/snow-river-thermal-system/”><span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Single Stage Snow River</span><b>™</b> <span style=”font-weight: 400;” data-mce-style=”font-weight: 400;”>Thermal System!</span></a><strong>Flexible Control and Diagnostic Capabilities</strong>Abbess offers a variety of control diagnostic and test data packages that can fit your specific application and budget. These control systems could be as basic as a simple thermostatic control or as advanced as a data logging touch screen PC interface capable of integrated system diagnostics and test data, and networking of multiple chillers to handle large or variable loads. Stand-alone PID Temperature controllers can also be utilized for simple, precise thermal control and profiling.<strong>Touch Screen PC Control Option</strong>Touch screen PC control provides total and complete control and monitoring capabilities of your cascade chiller system. The PC interface allows for data logging of system temperatures and pressures as well as full remote control of PID temperature loops. The interface is capable of providing self-diagnostic information to the user and can be used with a single Snow River™ chiller or multiple chillers piped in series or parallel to manage large or variable loads.<br />

Snow River™ Thermal System
(-40C to +200C)

Abbess’s Snow River™ Thermal System is a low-cost, liquid circulating, single-stage chiller that is capable of being fully integrated so that is supplies stable, precise and reliable temperatures in the range of -40C to +200C to any heat exchanger or thermal load.