jwasir
25-02-2013, 08:37 PM
Hi All,
During system testing, the SST was found to be on lower side!
After checking most of the other parameters like SH, face velocities, etc, I turned the evap fan off and let evap to freeze.
I found that the top and bottom portion of the coil is NOT frosted, rest complete coil was evenly frosted.
The top 3 feed lines going from the distributor were clear, no frost, bottom 2 feeds...very little frost.
Even the temp of top 3 feeds is above 32, rest withon 10-12 degF, bottom 25-30F.
What can be wrong????
During system testing, the SST was found to be on lower side!
After checking most of the other parameters like SH, face velocities, etc, I turned the evap fan off and let evap to freeze.
I found that the top and bottom portion of the coil is NOT frosted, rest complete coil was evenly frosted.
The top 3 feed lines going from the distributor were clear, no frost, bottom 2 feeds...very little frost.
Even the temp of top 3 feeds is above 32, rest withon 10-12 degF, bottom 25-30F.
What can be wrong????