hevac guide to air handling unit leakage testing

EAS designs each AHU to meet and exceed the customized needs of the exact project application. EAS always uses the highest quality materials for construction. EAS AHUs are all aluminum with a foam core panel and true “No Through Metal.” The company’s innovative design approach and experience provides the most efficient systems while maintaining the best serviceability for maintenance. Designed and constructed off site, EAS AHUs can be pre-piped, pre-wired and pre-controlled to save installation time, overall cost and to improve the quality and safety of the completed product. AHUs are shipped directly to the final destination where the EAS team will quickly install the system in a matter of days instead of weeks by having completed much of the trade work prior to shipment and delivery. EAS sets the benchmark for quality, efficiency, and innovation. 50+ year AHU casing designed to last the life of the building Structural steel and structural aluminum base material
Foam core panels with aluminum interior and exterior skin as standard Foam panels are 94% porous free and do not absorb moisture True no thru metal construction utilizing phenolic thermal break Panels are NFPA 90 A & B Compliant Double gasket doors providing 0% leakage @ 10”wg. 3 Point latching hardware with single locking handle on all doors True no thru metal NFPA 90 test port provided on each door Continuous full height Stainless Steel Piano Hinge on each door 12” x 12” wire reinforced windows in each door Patented aluminum extrusions with phenolic thermal break 3/16” Aluminum safety tread floor throughout Continuously welded floor seams creating 2” deep pan throughout entire unit Recessed 8”x 12” floor drains in each access section with welded drain pipe extended to exterior of base All Fasteners are stainless steel Fully welded casing construction eliminates penetrations in the exterior of the unit
Fully welded aluminum IAQ drain pans triple sloped to prevent standing water Coil headers piped to exterior of unit casing and provided with flanged connection Cooling coils provided at 450FPM or less as a standard to prevent moisture carryover All stainless steel coil supports provided as a standard Drain pans extended downstream a minimum of ½ coil fin height eliminating condensate carryovermaytag window ac unit manual 304SS intermediate drain pans with 2” drains individually extended to base drain pancar ac repair stockton Each fan individually isolated using minimum 2” seismic spring isolators, flexible connections and thrust restraintsair handling unit (ahu) คือ Fan stands are fully welded aluminum
Fans are mounted in the center of the airstream for most efficient airflow All fans provided with Premium efficient TEFC Motors Monorails provided in each fan section for fan/motor removal 4’ vapor tight fluorescent lights provided in each section Rigid aluminum conduit provided throughout Industrial grade electrical components and fittings Filter frames provided with stiffeners between each rack 1/2% leakage at 1.5 times design static pressure Full time installation supervision provided with every unit Plug and play electrical and controls incorporated into design Factory leakage and deflection testing standard Knockdown / field assembled unit capabilitiesClick to call 602-957-3745 Contact us now to learn more! Commercial Air Conditioning/HVAC Repair In Arizona time is not on your side when your business’ Air Conditioning/HVAC is not working. Customers won’t put up with uncomfortable temperatures for a second.
With over 30 years of experience in the desert climate AccuTemp understands the urgency your problem creates. Commercial AC/HVAC repair requires knowledge and experience well beyond residential and home settings. Not only is the equipment larger it is usually more complex in configuration. We service all brands of air conditioning/HVAC equipment such as: Here are some common diagnosis that we check when repairing your Air Conditioning/HVAC equipment: A/C REFRIGERANT LEAK DETECTION AIR HANDLER UNIT: Problems with the air handler, air filters, and the cooling coil itself BACKUP HEAT: On heat pumps, types of backup heat; problems with backup heat; we begin here if your heat pump is not providing enough heat or if your air conditioning system provides heat when it should be providing cooling. Blower Fan AUTO ON controls for air conditioning or heating blower fan units BLOWER FAN OPERATION & TESTING: Problems with the blower fan on furnaces, heat pumps, and air conditioners
COMPRESSOR CONDENSER: Problems with air conditioner compressor/condenser units COMPRESSOR & CONDENSING COIL, A/C BURNED-OUT COMPRESSOR – how do we diagnose a burned out compressor motor? CAPACITORS for HARD STARTING MOTORS – diagnose, install, replace an air conditioner motor starter capacitor CONDENSING COIL REPAIR REPLACE CONTACTOR RELAY DIAGNOSIS & REPAIR CONTROL CIRCUIT BOARD, A/C ELECTRIC MOTOR DIAGNOSTIC GUIDE HARD STARTING COMPRESSOR MOTORS – cause and cure of hard starting air conditioner compressors INSPECTION CHECKLIST – OUTDOOR UNIT LONG-ON CYCLING AC COMPRESSOR MOTOR OVERLOAD RESET SWITCH – where to find some “hidden” reset switches to get your A/C going again Pressure Controls & Safety Switches SHORT CYCLING AC COMPRESSOR – diagnose and cure A/C compressor that turns on and off too frequently TIGHT or SEIZED AC COMPRESSORS A/C – HEAT PUMP CONTROLS & SWITCHES Dehumidification Problems – Air conditioner cools but does not dehumidify
DUCT SYSTEM DEFECTS: problems with the air duct system, air filters, supply registers, return air registers FAN, AIR HANDLER BLOWER UNIT – diagnose and fix problems with the indoor furnace or air conditioner blower unit fan and fan motor FAN, COMPRESSOR/CONDENSER UNIT – diagnose and fix problems with the outdoor compressor/condenser fan and fan motor Fire dampers, and Heating and Cooling Air Duct Controls such as manual and automatic duct dampers, zone dampers, and fire dampers are discussed and distinguished at DRAFT REGULATORS – barometric damper HEAT PUMPS – diagnosis & repair articles specifically for heat pumps Compressor failure diagnosis: checks of the air conditioner compressor Ducts & Air Handler diagnosis: basic checks of the indoor air handler (blower), air ducts, and filter system A/C Flow Too Weak – weak cool air flow can be caused by several problems, filters, icing, duct leaks, etc. A/C Filter Problems – dirty or missing filters cause other operating problems
A/C Compressor Problems – quick check A/C Off – Condensate Pan Switch – some overflow pans have a switch that will shut down the system A/C Cooling Coil Icing – slow air flow, improper charge, etc. – eventually we get no cooling A/C Not Dehumidifying – improperly-sized unit, other causes, and cures for lack of dehumidification A/C Air Duct Problems – leaks, sizing, inadequate return capacity Air Conditioner Won’t Start – various causes including some simple switches to check Air Conditioner Refrigerant Problems – too much is as bad as too little; Blower Fan No Start / No Stop – weird blower behavior can be diagnosed and fixed. See BLOWER FAN OPERATION & TESTING. Compressor Diagnosis: Diagnose & Repair – serious look into the compressor unit Cooling Capacity of the Duct System OPERATING DEFECTS: Major air conditioning problem symptoms e.g. compressor or fan noises, failure to start, and inadequate cool air volumes