Gree GMV-ND28ZD/A-T Manuel D'utilisateur page 16

Multi Variable Air Conditioners Floor and Ceiling Type Indoor Unit
(7) The horizontal pipe can't be connected to vertical pipe in the same level; please select the
connection way as shown in following fig.
N01: Three-way connection of drainage pipe joints (Fig 4.3.2.2)
NO2: Connection of downspout elbow (Fig 4.3.2.3)
NO3: Inserting horizontal pipe connection (Fig 4.3.2.4)
Fig 4.3.2.2
(8) Drainage 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.
(9) Prepare the local piping at the connection point for the drainage pipe, as shown in Fig 4.3.2.6.
4.3.3 Test of Drainage System
(1) Please test drainage system after electric work is finished.
Inject approximately 1L purified water to drain pan from air vent; pay attention not to splash the
water over the electrical components (e.g. water pump. etc.):
(2) During the test, please carefully check the drainage joint and make sure no any leakage
occur.
(3) It's strongly recommended to do the drain test before ceiling decoration.
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Connection of
drainage pipe joints
1000-1500mm
② Bottom-right piping
Connection of
downspout elbow
Fig 4.3.2.3
Fig 4.3.2.5
Drain pan
Drain hose
① Right side piping
Fig 4.3.2.6
13
Inserting pipe connection
Fig 4.3.2.4