air problem - http://www.hvacmechanic.com/ Forums
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Replies:
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| chandler57
 |  "Re(1):air problem"
, posted Thu 16 Aug 08:36  
Inspect your air filter! What air filter?
If they don't find ya handsome nor handy surgery may help!
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| yuri
| "Re(1):air problem" , posted Wed 15 Aug 19:18
Yes and No. Have you had it properly maintained. Freon level needs checking, condensor coil needs washing, evaporator coil and filters need to be clean. Get a pro to do it. Will save you energy, electricity $$.
Yuri
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| | chrisjess
| "Re(2):air problem" , posted Wed 15 Aug 19:24
Unit is in attic took supply and return reading at unit 51 degree supply 76 return
chris patterson
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| | chrisjess
| "Re(2):air problem" , posted Wed 15 Aug 19:20
yes unit is brand new freon is right 50 degree supply and 70 degree return atic is extremely hot though 130 degrees
chris patterson
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| | yuri
| "Re(3):air problem" , posted Wed 15 Aug 19:24
A 20 degree split/difference is maximum so it sounds okay. Get some attic ventilation fans installed. Make sure the ducts up there are properly sealed and insulated. If it is sucking excessively hot attic air in then it will be overloaded. High humidity will also cause it to work harder.
Yuri
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| | static
| "Re(4):air problem" , posted Wed 15 Aug 19:36
A temperature split like that (25 degrees) suggests that there is not enough airflow through the ductwork.
A static pressure reading would confirm or reject this.
If it is indeed moving enough air, then the system is doing all it can do, and you should've went a half ton larger if you wanted it to be 70 degrees inside on a 100 degree day.
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| | chrisjess
| "Re(5):air problem" , posted Wed 15 Aug 20:09
it has a 5 ton goodman heatpump on 2150 square feet
chris patterson
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| | Gregg Harris
| "Re(6):air problem" , posted Wed 15 Aug 21:30
Yes, a 25 degree split would indicate low air flow. Have dealer verify fan speed and static pressure.
"It takes less time to do something right the first time than it does to explain why you did it wrong."
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