Original message
| AC Ranger
 |  "noise"
, posted Tue 28 Jun 08:13  
I installed a 4 ton goodman heat pump. Everything seems to work fine except the outdoor unit make a hard hiting sound when it starts. need help on this one. The Connecting lines are only about 4 foot long.
LS
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Replies:
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| Banger
| "Re(1):noise" , posted Tue 12 Jul 06:31
I'm not positive with Goodman, but I know there is a minimum lineset length for Trane units. You might need to add a loop of lineset behind the air handler to prevent liquid slugging at startup - check with Goodman/Janitrol for advice - the distributor should be able to give you a numkber for technical support.
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| MasterTech
| "Re(1):noise" , posted Tue 28 Jun 19:55
Is there a hard start device? If not i would try it first.
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| Xenos
Webmaster 
| "Re(1):noise" , posted Tue 28 Jun 18:00
Could it be the compressor motor hitting it's shell?
Xenos.
The best way to escape a problem is to solve it.
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