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Old 01-30-2009, 02:31 PM   #1
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new hvac precharged unit install

the unit is installed i have purged the system and pulled a vacum over 24 hrs to 500 microns. i have 25 ft run and this is a 4 ton precharged condensing unit split system on manufactured home. what is the fill preasure on the evaporater side befor opening condensing side to run the unit? i want to say around 30 psi on the low preasure side.have not done this in a while.

Last edited by reno1011998; 01-30-2009 at 02:36 PM.
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Old 01-30-2009, 02:37 PM   #2
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new hvac precharged unit install

The installation manual will tell you how much to add for the line set length and coil match up.

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