rated cooler doors

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Author Message Robin E. Snyder Senior Member Username: robin Post Number: 296 Registered: 08-2004 Posted on Tuesday, February 02, 2010 - 11:14 am:    Anyone know of either a cooler door that carries a rating (20 min) I can use in a corridor, or a corridor door that can function as a cooler door? This is for a cooler that is part of a rated corridor and AHJ are requiring a rated wall be built adjacent to the cooler, but the doors open onto the corridor and need to be rated. Any thoughts? Have tried some kitchen consultants and some door consultants, to no avail. Ralph Liebing, RA, CSI, CDT Senior Member Username: rliebing Post Number: 1135 Registered: 02-2003 Posted on Tuesday, February 02, 2010 - 12:08 pm:    Try Chase, Enviro or Jamison Door Companies (Unregistered Guest) Unregistered guest Posted on Thursday, February 17, 2011 - 12:48 pm:    run the rated wall around behind the cooler. George A. Everding, AIA, CSI, CCS, CCCA Senior Member Username: geverding Post Number: 581 Registered: 11-2004 Posted on Thursday, February 17, 2011 - 02:28 pm:    Cooler doors probably are 20-minute just by virtue of the way they are made with metal faces (how is that any different than a typical HM door?), but getting a tested product is the tricky part. Perhaps the AHJ will allow you a variance on the test? Also, keep in mind that the cooler door will need to be self latching and self closing if you want to use it in part of a rated assembly. I like the idea of building the rating around the cooler, but that might cause you some issues with penetrations for all the mechanical stuff that needs to feed the cooler depending on if it sits on top of the cooler itself or is next to it. George A. Everding AIA CSI CCS CCCA Ingersoll Rand Security Technologies St. Louis, MO ken hercenberg Senior Member Username: khercenberg Post Number: 79 Registered: 12-2006 Posted on Tuesday, February 22, 2011 - 05:43 pm:    Good points George. Depending on the use, the cooler door manufacturers I've spoken with have not been keen on latching doors; they seem to prefer heavy magnetic seals extending outside the opening (like an oversized refrigerator door) which do not comply with self-latching requirements. I like the rated enclosure idea better too. One issue to consider is whether the enclosure door will be subject to condensation and rusting as a result of cold temperatures radiating outboard of the cooler door. You may need to consider seals at the enclosure door too. John Bunzick, CCS, CCCA, LEED AP Senior Member Username: bunzick Post Number: 1305 Registered: 03-2002 Posted on Tuesday, March 01, 2011 - 11:15 am:    I'm curious about the condition that leads to this requirement. ken hercenberg Senior Member Username: khercenberg Post Number: 80 Registered: 12-2006 Posted on Tuesday, March 01, 2011 - 11:52 am:    In our case we built a Central Utility Plant that used ice storage for cooling. We had an ice vault about the size of a football field, about 35 feet deep, with catwalks above to access the four sections; they wanted to be able to take individual sections offline for cleaning, etc. There is one access door to the outside that obviously needed a very good seal so we built a steel frame that overlapped the concrete opening and inserted an oversized cooler door on the inside. The other end of the opening came out at the top of a rated stair so we needed a rated door. It didn't make sense to try to make the vault door do everything; we just needed to make sure that the rated door wouldn't freeze shut or rust out due to condensation. Pretty neat actually.