Multi Variable Air Conditioners Floor and Ceiling Type Indoor Unit
11
Fig 4.3.6 Fig 4.3.7 Fig 4.3.8
NO1: Connection of drainage pipe joints (Fig4.3.6)
NO2: Connection of downspout elbow (Fig4.3.7)
NO3: Inserting pipe connection (Fig4.3.8)
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The installation height of raising pipe for drainage should be lower than 850mm. The gradient
from raising pipe towards drainage direction should be at least 1%~2%. If the raising pipe is
vertical with the unit, the raising height should be less than 800mm.
Fig 4.3.9
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Drain pipes should have a downward slope of at least 1%~2%, in order to prevent pipes from
sagging, install hanger bracket at intervals of 1000~1500mm.
Fig 4.3.10
4.3.3 Test of Drainage System
Models without water pump
1
Fill some water to the water tray of indoor unit as following.
1) Connect the drain hose to the other drain connection pipe of water tray and fill about 1L water (as
shown in 4.3.11). (Remove the drain hose after finishing testing and then put on the plug of water
tray.)
2) Spray 1L water on evaporator with sprayer, as shown in 4.3.12.
Fig.4.3.11 Fig.4.3.12
2
Check if the water drains smoothly from the drain pipe and check if there is water leakage on the
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