need advice...

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Permalink Reply by Chillerman on November 14, 2008 at 2:25pm

Just follow the recommended pipe size stated on the installation manual :)

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Permalink Reply by Ronel Lawag on November 16, 2008 at 12:33pm

n need to worry jus do wat u can if u are ah A/C instoler. i guess u need a lop in horisontal piping 7 m ? make a lope in that case

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Permalink Reply by Janew Jain on November 16, 2008 at 3:30pm

Hi tengteng,

The horizontal piping in particular the suction line, of a split unit, requires a slope or slant towards the condensing unit. A simple rule to follow is 1 inch slope per 1 meter. Thats 7 inches slope for a 7 meter lenght of horizontal piping. That is to ensure gravity flow of oil most especially in the suction line wherein oil and refrigerant does not mix properly. Furthermore, Oil-trap must be at the bottom of the suction riser.

Chillz

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Permalink Reply by Dennis on January 8, 2009 at 12:36pm

Hi mga Bro i hope i'm nat late on this discussion, seem everyone has a good aswer but just to add to this matter I've attach a document to support thank and GOD Bless

Janew Jain said:

Hi tengteng,

The horizontal piping in particular the suction line, of a split unit, requires a slope or slant towards the condensing unit. A simple rule to follow is 1 inch slope per 1 meter. Thats 7 inches slope for a 7 meter lenght of horizontal piping. That is to ensure gravity flow of oil most especially in the suction line wherein oil and refrigerant does not mix properly. Furthermore, Oil-trap must be at the bottom of the suction riser.

Chillz

Attachments:

• YCUL typical piping for single suction riser0001.pdf, 1.3 MB

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Permalink Reply by Vincent Brillantes on January 10, 2009 at 7:15am

bro thanks to you ...laking tulong ito..God Bless..

Dennis Ygbuhay said:

Hi mga Bro i hope i'm nat late on this discussion, seem everyone has a good aswer but just to add to this matter I've attach a document to support thank and GOD Bless

Janew Jain said:

Hi tengteng,

The horizontal piping in particular the suction line, of a split unit, requires a slope or slant towards the condensing unit. A simple rule to follow is 1 inch slope per 1 meter. Thats 7 inches slope for a 7 meter lenght of horizontal piping. That is to ensure gravity flow of oil most especially in the suction line wherein oil and refrigerant does not mix properly. Furthermore, Oil-trap must be at the bottom of the suction riser.

Chillz

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Permalink Reply by bobot on February 16, 2009 at 9:38am

First where is the outdoor location, outdoor above indoor or outdoor below indoor. If outdoor above indoor use oil trap(suction on;y) to easy return of oil into the compressor. Install oil trap near the suction riser, though the vertical lift is a little bit long because for 1tr the max. vertical lift is 5mtrs. only. Much better if you can make it shorter. (please see attached picture)
If outdoor below indoor and the unit is almost back to back, install inverted loop near the indoor (suction only) but it is far from the outdoor no need of inverted loop just pitch the pipe toward the outdoor unit to easy return of oil into the compressor by gravity during cycle.

Attachments:

• oil trap.JPG, 29 KB
• sag.JPG, 36 KB
• inverted loop.JPG, 27 KB

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Permalink Reply by Oirad Linamet on February 21, 2009 at 11:05pm

maybe oil trap is not needed for that 1TR split type A/C because mayron na po yang oil trap ang unit tignan nyo po ung loob ng outdoor kasamana po un sa design ng manufacturer.tnx

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