2013 HVAC Catalog.pdf - Keysource Marketing Ltd

ACCESSORIES & TOOLSCALCULATORSReference points on a variety of topics and scales to make even the most technically demanding jobs a breeze.ROOM AIR CONDITIONER CALCULATOR5100Used to determine size of air conditioner unit with allowances for:• Exposed and unexposed walls.• Exposed and unexposed windows.• Roof and ceiling insulation.• Heat gain from number of people.• Location.This calculator selects amount of capacity needed in a cooling load of 5000-24000 BTUs per hour, andindicates the size of unit required in BTU ratings. The calculator not only simplifies the job of specifyingwindow air conditioners, but also eliminates misapplication and paper work. An ideal service and salestool for the estimator and service engineer, the calculator is imprinted with full directions.5100AIR DUCT CALCULATOR5125This ingenious, pocket-size Air Duct Calculator uses only three slides to give all of the information neededwhen figuring the sizes of air ducts. Convenient tables printed on the back of the calculator supplyadditional data in a handy, easy-to-use form. The few words of instruction needed to understand and usethe different slides are printed on the calculator face, where they cannot be lost or mislaid.Used to determine:• Size of air ducts by the equal pressure loss method.• Size of round ducts vs. rectangular ducts.• Weight per foot of round ducts by U.S.S. gauge.• Weight per foot of rectangular ducts by U.S.S. gauge.• Recommended duct velocities.• Friction loss of 1-1/2 radius elbows.• Gauge of metal for size of ducts.5125HUMIDITY CALCULATOR5150Designed for determining the percent of relative humidity when using any standard sling psychrometer,this calculator eliminates the use of psychrometric charts from 60° to 100°F. The reverse side of thecalculator has a chart of recommended humidities according to industry application and temperature.TROUBLESHOOTING CALCULATOR51755150This calculator simplifies the job of diagnosing cooling system troubles. Ideally suited to the needs of theexpert as well as the needs of the trainee, it provides immediate reference, from COMPLAINT to POSSIBLECAUSE to REPAIR.Features• 19 major ‘Complaint’ sections.• 32-part ‘Trouble Shooting’ Index.• 127 ‘Possible Cause’ items.• All items keyed to ‘Repair’ window.517561