TruckPR-Red Dothttp://www.truckpr.com/red-dot/Red Dot mobile HVAC news and information from TruckPR and SiefkesPetit Communicationsen-US2012-02-13T13:07:39ZSquarespace Site Server v5.11.81 (http://www.squarespace.com/)Red Dot Offers Improved Battery-Powered A/C System for Truck Sleepershttp://www.truckpr.com/red-dot/2011/9/6/red-dot-offers-improved-battery-powered-ac-system-for-truck.htmlTruckPR2011-09-06T22:21:00ZA/C HVAC Products Sleeping Well sleepers trucksRed Dot Names Bill Jewell Marketing Manager, Aftermarkethttp://www.truckpr.com/red-dot/2011/8/25/red-dot-names-bill-jewell-marketing-manager-aftermarket.htmlTruckPR2011-08-25T22:51:00ZCompany NewsRed Dot Agrees to Acquire JBAR A/Chttp://www.truckpr.com/red-dot/2011/8/15/red-dot-agrees-to-acquire-jbar-ac.htmlTruckPR2011-08-15T12:51:11ZCompany News‘Miss Red Dot’ Returns for 2011 H1 Hydroplane Racing Seasonhttp://www.truckpr.com/red-dot/2011/5/17/miss-red-dot-returns-for-2011-h1-hydroplane-racing-season.htmlTruckPR2011-05-17T20:21:00ZCompany NewsRed Dot Names Robert Gardiner National Sales Manager, Aftermarkethttp://www.truckpr.com/red-dot/2011/3/4/red-dot-names-robert-gardiner-national-sales-manager-afterma.htmlTruckPR2011-03-04T23:42:00ZCompany NewsChange the Air Filter, Check the Evaporatorhttp://www.truckpr.com/red-dot/2011/1/19/change-the-air-filter-check-the-evaporator.htmlTruckPR2011-01-20T06:07:49ZMaintenance filterIf it’s time to change recirc air filters in your cab, go a little further and check the evaporator for caked-on dirt that can hamper its performance. 

During normal operation, the evaporator picks up moisture from the air which condenses on the fins as water droplets before draining out of the system. This dehumidification action helps make the operator feel more comfortable in the cab. 

The downside is that moisture on the fins attracts dust. We see this a lot on backhoes, skid steers, and other equipment where the operator runs the A/C with the window open so he can communicate with a coworker on the ground.

Most filters for recirculated air are the low-restriction type. They aren’t designed to remove large amounts of dust from the air before it reaches the evaporator. Next time you change the filter (following recommended inspection intervals), check the evaporator. It may need a good cleaning to make sure the operator is getting the steady stream of cool air he expects.

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