Air-Row Fans Minimize Freezer Door Sweating Energy Efficiency and Comfort at a Savings!

How Freezer Door Sweating Occurs When a freezer door is opened, cold air from the freezer mixes with the warm air inside the store. This cold air lowers both the temperature and dew point of the air adjacent to the glass door of the freezer. Once the dew point of this air mixture falls below the temperature of the door, water vapor will condense on the surface of the glass. The door above on the left is a casualty of water vapor condensing on the door. The product inside the door is no longer visible to the customer.

How an Air-Row Fan Minimizes Sweating THERE ARE TWO WAYS THAT AN AIR-ROW FAN PREVENTS FREEZER DOORS FROM SWEATING: 1. TEMPERATURE DESTRATIFICATION 2. AIR MOVEMENT

A New Standard in HVAC Destratify your air . . . Decrease Your Costs! Temperature Destratification The Air-Row fan delivers a column of air from the ceiling of the store down to the floor. The floor to ceiling temperature differential in a store without destratification fans can vary by 15º F or more. Air-Row fans can reduce the temperature differential between the floor and ceiling to 4ºF or less. A New Standard in HVAC Destratify your air . . . Decrease Your Costs!

How Destratification Minimizes Door Sweating The temperature adjacent to the freezer doors will be warmer when an Air-Row fan is running. This higher temperature counteracts the cooling created by the cold air escaping from the freezer when the door is open. The resultant mixed air dew point is higher and the relative humidity is lower.

Air Movement As the cool air escapes from the freezer when the door is open, it is encountering store air that is in motion. The cooler air does not linger adjacent to the glass of the refrigerated case. The air is being pushed down to the floor and dispersed by the air being delivered by the Air- Row fan. BENEFITS Increases customer and employee comfort Draws residual ceiling heat to an area that requires heat all year long 3. Reduces run time on adjacent HVAC units by using residual ceiling heat and diffusing overcooled air Reduces condensation on freezer glass doors Reduces run time on anti-sweat heaters c/w controls

How Air Flow Negates Sweating THE COLD AIR FROM THE FREEZER IS MIXING WITH A HIGHER VOLUME OF STORE AIR AS THE STORE AIR IS NOT STAGNANT BUT IN MOTION. AS THE VOLUME OF AIR INCREASES, THE COOLING EFFECT IS DIMINISHED. THE COOLER AIR WILL NOT LOWER THE TEMPERATURE OR REDUCE THE DEW POINT AS MUCH DUE TO THE HIGH VOLUME OF ENCOUNTERED WARM STORE AIR.

Savings Potential When Air-Row Fans Augment Anti-Sweat Controls When Air-Row fans are used in conjunction with anti- sweat heat controls, the run time on the anti-sweat heaters can be reduced by an additional 25% The above run time percentages were based on a typical supermarket in the Northeast. The anti-sweat heater run time was reduced by an additional 25% !

Simple Payback Projection WITHOUT ANTI-SWEAT CONTROLS OR AIR-ROW FANS ANNUAL ENERGY USED(KWH) 206,035 COST OF 100% HEATER USAGE $14,422 WITH ANTI-SWEAT CONTROLS AND AIR-ROW FANS ANNUAL ENERGY USED(KWH) 55,710 COST OF HEATER USAGE $3,900 ANNUAL SAVINGS $10,523 % OF ANNUAL ENERGY SAVINGS 73.0% PAYBACK PERIOD 0.4 years

Payback When Anti-Sweat Controls Are Already Installed Savings w/Anti-Sweat Controls Added Savings w/Air-Row Fans Without Anti-Sweat Controls Annual Energy Used 206,035 Cost of Heater Usage $14,422 With Anti-Sweat Controls Annual Energy Used 86,535 Cost of Heater Usage $6,057 Annual Savings $8,365 With Anti-Sweat Controls and Air-Row Fans Annual Energy Used 55,710 Cost of Heater Usage $3,900 Additional Savings $2,157 Simple Payback 1.1 years

Perfect For Open Ceiling Applications FEATURES ECM Motor with 0.34 amp draw Thermal protected Patented Technology Fire safe with thermal shut off Preset factory 3 speed control Square or Round styles Available in white or special order colors to match ceiling color 3 year motor warranty BENEFITS Fan blades move 10-20% more air and are heat resistant Pushes air down in column no wider than 2 to 3 feet wide Fans are effective at heights as high as 40 feet Eliminates odors and helps keep fresh air quality No duct work required ADVANTAGES Reduces HVAC energy usage by 25% on average Promotes warm and dry floors Increases equipment life and reduced repairs Enhances comfort for customers and employees IDEAL APPLICATIONS Supermarkets Big box stores F-18 Air-Row Fan Perfect For Open Ceiling Applications

Join these fine companies already using Air-Row Fan Patented Technology! "It used to take four hours for my store to recover from night set-backs. Now with Air-row fans it takes my store 30 minutes to recover." – Store Manager “Customers have been complaining for years about the cold temperatures and have stated they would just run through and grab what they need. Now they take their time and browse my aisles." – Dairy Clerk