Design Requirements For Oil Trap - Gree R410A Service Manual

Super Free Match
Service Manual

6.5 Design Requirements for Oil Trap

If the height different between the indoor unit and outdoor unit exceeds 6m, one oil trap shall be installed
every 6m from lower to upper on the vertical section of gas pipe. The oil trap shall be fabricated into two U-type
elbows or one return-type elbow. The height shall be 3~5 times the piping diameter.
See below for details on installation and fabrication of oil trap.
①. The oil trap may be fabricated into U-type or return-type.
②. If outdoor unit is below indoor unit, it is not needed to install oil trap on the vertical pipe of gas piping.
③. If the outdoor unit is below the indoor unit, it is not needed to install oil trap at the highest or lowest
position. If the outdoor unit is above the indoor unit, oil trap and stop elbow must be installed at the lowest and
highest position of the vertical pipe. See the schematics below:
④. Fabrication dimension of oil trap is as shown below:
⑤. See the schematics below:
Outdoor unit lower than indoor unit
INSTALLATION 106