Samsung MXJ-YA1509 Series Installation Manual page 79

(2) Indoor unit without a drain pump (2) Indoor unit without a drain pump
① ① Form a reverse flow preve
Form a reverse flow prevention P or U-trap on the pipe coming from the indoor unit.
P-Trap, U-Trap pipe photo inserted here. P-Trap, U-Trap pipe photo inserted here.
② ② An air-vent should be installed on the indoor unit side and located higher than the drainpipe
An air-vent should be installed on the indoor unit side and located higher than the drainpipe
height. height.
③ ③
Or, install an air vent Or, install an air vent on the
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ntion P or U-trap on the pipe coming from the indoor unit.
on the vertical pipe. vertical pipe.
Installation guide Installation guide