Gree FGR40Pd/D2Na-XI Manuel D'utilisateur page 9

things in the room.
(4) You can buy normal hard PVC pipe used as the drainage pipe. During connection, insert
the end of PVC pipe into the drainage hole and then tighten it with drainage hole and wire
binder. Can't connect the drainage hole and drainage hole with glue.
(5) When the drainage pipelines are used for several units, the position of pipeline should be
about 100mm (4 in.) lower than the drainage port of each unit. In this case, thicker pipes
should be applied.
2.3.2 Drainage pipe installation
For easy drainage of the condensation water, the drainage pipe should be installed with a
downward gradient. To avoid the condensation, the connection pipe joint should be insulated with
thermal insulation material. A water seal should be employed as shown in Fig.8 and the height of
the water seal could be determined by the pressure of the drain hose.
Drain hose is in negative pressure state: A = B≥P/10+20 (mm).
Drain hose is in positive pressure state: A≥30mm，B≥P/10+20 (mm).
Note: P is the absolute pressure of the drain hose position, Pa.
2.3.3 Test of Drainage System
(1) Inject approximately 1L purified water to drain pan from air vent, ensure that not to splash
the water over the electrical components (e.g. water pump. etc.).
(2) During the test, please carefully check the drainage joint, make sure no any leakage
occur.
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The Ducted Split Type Air-Conditioning Units(Inverter Series) Installation and Operation Manual
Fig.7
Fig.8
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