The Importance of Refrigeration Gaskets

Refrigeration gaskets are a very important part of your walk-in cooler or freezer’s performance. Under-performing gaskets could cost your business hundreds or thousands of dollars in energy bills. Gaskets are responsible for sealing your walk-in door and panels to stop any air infiltration. When your walk-in door is closed, the gasket keeps the cold air from escaping and more importantly warm air from entering your walk-in. When gaskets are not working properly, your refrigeration unit will have to work harder to keep its cold temperature – which in-turn generates higher energy bills and wear and tear on your equipment.

 
There are two different gaskets on your walk-in door that are both vital to your walk-in’s performance.
– The magnetic gasket is the thicker gasket attached to the door and helps to seal and keep the door closed.
– The wiper gasket is the thin single-dart gasket that helps seal the door to stop any outside air infiltration. Wiper gasket is located on the door and on the frame.

Magnetic Gasket and Wiper Gasket on U.S. Cooler door.

Periodically check door gaskets and door sweeps for wear and tear. Keep your gaskets performing longer by cleaning and removing any food, dirt, or debris build-up. It is suggested to include wiping down your gaskets during your daily cleaning routine.

 
Signs that your gaskets may need to be replaced:
– Step inside your walk-in and check for any light coming from around your door. If light comes through you know there is an opening in the gasket.
– Physically check to see if gaskets are ripped or torn.
– If your walk-in cooler gasket isn’t working properly, you may see sweating between the door and door jam. On a walk-in freezer, there may be ice or ice build-up.

 
When replacing your gasket, make sure to purchase the correct gasket for your brand of walk-in. Walk-in brands use different styles of gasket.

Introducing the New U.S. Cooler Walk-in Door.

U.S. Cooler walk-in cooler

Here at U.S. Cooler®, we work hard to bring you a quality product at a reasonable price with exceptional attention to the needs of the customer.  So, with that in mind, starting today, all walk-in coolers and freezers will come standard with our break-through Vert-Ergo™ handle, new adjustable hinges, efficient LED lighting, and a dual-temperature display with touch switch.  Below, we have more information about each of the new products, but what does this mean for you?  In short, our new Vert-Ergo™ handle provides a more ergonomic hand position while increasing your leverage to make opening your walk-in cooler or freezer easier.  The new adjustable hinges allow easy adjustment of door alignment with standard spring-action door closing.  The efficient LED lighting offers a reduction in electrical usage, plus a decrease in heat generation for further savings.  Lastly, the thermometer with built-in light switch offers dual-temperature display with an easy-touch switch, as well as multiple other add-on features for further energy control.  We work hard to ensure that every detail of your walk-in cooler and freezer is built to our superior quality standard and is manufactured with your needs in mind.

Vert-Ergo™ handle

Handle-200x355
  • Vertical handle design for easier opening.
  • Ergonomic positioning for a comfortable feel.
  • Reversible for mounting on either a right hand or left hand door.

LED Light

1808 LED Light
  • Designed to reduce electrical usage by 85%.
  • Minimal heat generation will lower utility cost.
  • Exceeds Federal Energy Act Requirements.
  • Rated for 50,000+ hours of life.

Adjustable hinges

1346 Performer Hing
  • Strap adjusts horizontally, providing door lift and rotation to compensate for unlevel or uneven floors.
  • Built-in spring action is standard.
  • Left and right hand hinges use the same component parts for faster mounting and replacement.

Dual-temperature display with touch light switch

1967-3
  • Dual-temperature display changes between freezer and cooler temperature probes.
  • Designed for (wet & dry) in-door and/or outdoor locations
  • Light relay with touch technology
  • Quick Installation, No connectors required

U.S. Cooler Celebrating 30 Years!

U.S. Cooler Celebrating 30 Years!

30 years ago, U.S. Cooler®, started as a small family owned business manufacturing insulated panels for cold storage solutions. By strongly committing to the basic philosophy to provide a quality product, U.S. Cooler has resulted in successive years of double digit sales growth and a financially strong company.  We provide a quality product at a reasonable price with exceptional attention to the needs of the customer.

U.S. Cooler, would like to thank our employees, customers, and vendors for their loyalty and support throughout our 30 years in the business.  We appreciate the continued opportunity to serve all your walk-in cooler, freezer and cold storage needs and look forward to our continued relationships in the future.

30th-cooler1

 

Indoor vs Outdoor Walk-in Cooler Location

Location is Everything

Choosing the location of your walk-in cooler to be indoors or outdoors is a very important decision. Once the walk-in cooler or freezer is installed it will be a large hassle and waste of money if you change your the location. Here are some considerations to take into account before making your decision.

indoor walk-in cooler location
Indoor walk-ins can take up precious usable area. Find the best location for your walk-in cooler!

Space Requirements – Whether your location is indoors or outdoors you will have to account for the amount of space needed. For indoor walk-ins you need at least 6 inches of airspace above the walk-in and 2 inches on all sides for proper airflow. An indoor condensing unit needs to be easily accessible for cleaning and repairs and should have plenty of airspace all around it. Some customers request hatches in their walk-in’s ceiling to easily access top-mount units. You may consider an outdoor walk-in if your indoor space is limited or if you’d like room to grow in the future. Be sure your property is large enough to house the size of outdoor walk-in you require.

outdoor-walk-in
Outdoor walk-in butted against the building.

Butted vs Freestanding – A freestanding walk-in will be a separate structure and have a door that opens to the outside. A butted walk-in will usually have a door opening to the inside of your building. The panels of a butted walk-in will be butted up against the building on one or more sides. Butted walk-ins will not require a drip cap and the door and its hardware will last longer since it’s not exposed to the elements. Freestanding units should be equipped with locks as they are susceptible to theft.

Condensing Unit Location – If you own a restaurant or any other consumer-based business, you don’t want a loud refrigeration unit ruining the ambiance. There are refrigeration units designed to be quiet, but most of the time a remote refrigeration unit is your best option. A remote unit allows you to locate your condensing unit outside the building, even if your walk-in is inside. Condensing units also give off heat which is not optimal when you’re trying to cool your building. Keep refrigeration units away from any heat sources such as vents, fryers, or ovens and anything that can get the unit dirty or greasy.

Maintaining Your Walk-in Cooler or Freezer

Whether you run a restaurant, convenience store or a supermarket, your walk-in is an important investment. It should be taken care of to ensure many years of efficient usage. Here are tips from walk-in manufacturer U.S. Cooler for maintaining your walk-in cooler or freezer.

How to keep your walk-in operating efficiently:

torn gasket
Torn gaskets can let warm air infiltrate your walk-in cooler or freezer
  • Close the door when not in use. Do not block or prop the door open for extended periods of time. Make sure it is closed at all times except when entering and exiting the walk-in.
  • Periodically (minimum of twice a year) clean the evaporator and condensing coil. If located outside, the coils should be cleaned more often. Clean the fan blades to reduce drag.
  • Make sure fan motors are running at optimum speed.
  • On outside condensing units, maintain clear and adequate airflow. For example, do not allow trash or weeds to accumulate around the walk-in.
  • Make sure there is nothing stacked around the coil to prevent restricted airflow.
  • Do not pile anything on top of the walk-in. This could cause damage to the ceiling panels.
  • Occasionally have a service technician check all electrical connections to make sure they are good and tight. Loose wires could cause high amperage, which will cause your unit to use more energy.
  • Check for damage or decay in the insulation on suction lines between the condensing unit and evaporator coil. Replace as needed.
  • Hinges should be lubricated once a year to ensure they close properly. (Some hinges utilize self-lubricating nylon cams, so this will not be necessary if that is the case.)
  • Make sure the lights are off when exiting the walk-in. Lights produce heat, which will cause your unit to run more to hold its optimal temperature. Make sure your walk-in has a switch with a pilot light so you can tell if the light is on without opening the door.
  • Check the door sweep for tears and make sure it is sealing properly against the threshold.
  • Periodically, check gaskets between panels to make sure they are not cracked or weathered. Replacement of damaged gaskets will ensure your walk-in is efficient and up to local health codes.

How Walk-in Panels Create an Airtight Seal

stacked walk-in panels
Modular panels are equipped with cam locks and double barrel panel gaskets.

Air infiltration, or lack thereof, plays a major role in an efficient walk-in cooler or freezer. Walk-ins are manufactured to be air-tight because any cold air that escapes will lower efficiency and any warm air that enters can cause condensation and icing problems. Air and moisture infiltration can damage panel insulation, causing it to lose R-value and reduce the life of the walk-in. It seems like a walk-in constructed of numerous separate panels would be prone to air leakage, but this isn’t the case. So how do manufacturers of walk-ins create an airtight seal between panels?

gray screeding
Screed for the base of walk-in panels

Manufactures have different methods of sealing panels, but at U.S. Cooler, we use precision-cut tongue & groove insulation between two metal skins (of galvalume or stainless steel), cam locks and panel gaskets. The interlocking design of our panels ensure they fit together like puzzle pieces and are held tightly in place by aligning and tightening cam lock mechanisms. Double-barrel compression gaskets line the inside and outside of each panel. When the panels are locked into place with a cam wrench, the gaskets seal against each other and create an air and moisture barrier. Walk-in coolers without an insulated floor are inserted into a vinyl channel (screed) to prevent air from entering when mounted on concrete.