This month’s troubleshooting situation centers around a very recently installed heating and cooling system, and a customer who has called to complain that certain rooms in the house “just don’t seem to be getting enough air.”
(Before we begin with the specific troubleshooting information on this situation, we’ll establish a couple of points… First, the problem isn’t related to the refrigeration system in any way, and second, there are no electrical problems contributing to the complaint. In this situation, we’re dealing with an airflow problem. Note that Figure 1 shows the design of the supply duct system exactly as it appears in the attic crawl space.)
When you arrive at the customer’s home, you find that the two rooms the customer is complaining about are closest to the air-handling unit in this duct system that employs one central return and an extended plenum system on the supply duct assembly. In assessing the situation, you determine that the airflow from each supply register in these two rooms should be approximately 120 cfm, but when you measure the airflow with a digital velocity meter, you find the airflow to be approximately 90 cfm. As your next step, you move on to the crawl space to check the supply ductwork and find no leakage or crushed duct, but you do find, as we mentioned above, the supply duct system in Figure 1.
Your troubleshooting problem: What design flaw is responsible for the specific airflow problem we’ve described in this situation?
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Author: Jim Johnson
Chicago air conditioning in buck town always gets the best service from Around The Town Air conditioning And Heating because Buck town is one of our favorite Chicago neighborhoods and the people air friendlier to our air conditioning service technicians, not with standing , all Chicagoans are friendly all in all and as a service provider of heating andair conditioning systems we appreciate the kindness. Chicago Air conditioning the best of Around The Town has great specials for buck town patrons. Our 2009 end of winter specials on furnace s can`t be beat! Our pre-season on new central air conditioning systems can`t be beat! Our pre saeson a/c tune -up special can`t be beat! You`ll see just call us and talk to our service department for information or to schedule an appointment. Thanks Big ED (more…)
Evergreen Park hvac contractors do alot of central air conditioning work in Evergreen Park do to the political arena that surrounds them, there are committee men whom own Heating and Air condiitioning contracting firms as well as heating supply outfits thats been estasblished there in Evergreen Park for years and recieves alot of request for heating and air contractors, and who gets the majority of work, The favorites or Evergreen Park, Dear consuners you may get a better hvac contractor and more reasonable pricing on a/c repairs or installs if you shop around town
Oak Lawn a/c`s , the Residence of Oak Lawn are very conscious about maintaining their Air conditioners, how do i know this? One thing for sure is that in the spring when a/c tune-ups are needed the Oak Lawn Residents are one step ahead., already done. And another way to know that Oak Lawn, the be cool community maintains their central air conditioners is because in the sweltering heat you hardly ever see heating and air conditioning trucks around the town. Go Green!
Central air conditioning clean and check or better known as a/c tune-up. We here at Around the town Heating and Cooling uses a 16 point check list to perform our spring a/c cleaning and tuning to insure the a/c you own is safe, energy efficient regardless of age and will last longer with proper maintenance.
- Check or replace home owner supplied furnace or air handler filter
- Clean and inspect indoor blower for proper operation and debris
- Inspect duct work for proper sizing for proper static pressure
- Do a visual inspection to the evaporator coil for cleanliness
- Check wet bulb and dry bulb temps in home relating to humidity
- Check temperature drop between supply and return at furnace
- Check air flow restrictions at furnace or air handler
- Out door condenser checks consists of the following below
- Inspect all high and low voltage electrical connections
- Lubricate all moving parts that require lubricant
- Check relays and contactors for pitting and failing operations
- Check all amp draws on motors and compressor
- Check suction pressure, superheat, head pressure and sub cooling
- Perform acid test on refrigerant to insure no contaminants in system
- Thoroughly clean out door condenser
- Adjust refrigerant charge as necessary for proper operation
