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134
INSTALLATION
24 and 36k Outdoor Units
Piping Work and Refigerant Charge
An oil trap should be used every 16 ft
Slope：1/200~1/250
Slope：1/200~1/250
OOil trap
When the indoor unit is lower than the outdoor unit, and the height
is larger than 16 feet, an oil bend should be employed for every 16 feet.
NOTE:
1. To avoid storing too much oil in the oil bend, the oil bend should be as short as possible.
2. The horizontal piping should be sloped down along the refrigerant flow direction, to bring the oil back to compressor. The slope
should be between 1/200 and 1/250.
In order to ensure cooling/ heating performance better, the refrigerant piping should be as short and straight as possible.
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