Connecting the condenser water drainage pipe of the indoor unit
The Condensed water of the evaporator converge to a common water tray following which it is drained through the
drainage pipe of the drain pump.
⚫ The unit is configured to adopt the top drain mode by default; therefore, connect the drainage pipe of the pump upwards
to the top drainage copper pipe.
⚫ Fix the drainage pipe to the drainage pipe connector with the hose clamps available in the shipped accessories. The
torque of the hose clamp is 15 kg-cm.
⚫ Connect the drainage pipe to the drainage hole on the top of the cabinet.
⚫ To drain water from the bottom, direct the soft drainage pipe through the drainage hole.
⚫ Fix the pipe to the copper pipe connector with the hose clamp. Moving forward, connect it to the outer drainage pipe.
⚫ Regardless the water is drained from the upper part of the unit or from the lower part of the unit by the water pump, the
check valve must be installed at the exit of the unit.
The outer diameter of the copper pipe is 12.7 mm and an internal diameter of the soft pipe is 9 mm.
However, if the unit is not configured with a pump, the drainage pipe of the water tray should go through the drainage
hole and connect to the outer drainage pipe. The Trap is essential to drain the condensate water.
The following points are to be taken into consideration about the trap:
⚫ Adopt a galvanized steel, PVC, or polyethylene pipe with a fair amount of flexibility
⚫ Allow a tilt of 2% towards the direction of the drainage flow
The trap is mandatory and should be located 30 cm below the water tray. The tray must be kept under the movable
floor.
Figure 2-18 Process of draining the Condensate water
⚫ Don’t cut off the brackets of the trap lest the smooth draining gets destroyed
⚫ Filling water to the trap before the unit is powered on
⚫ Use a Teflon belt between the flexible pipes and connector to avoid water leakage
⚫ Check the water pump inlet pipe and gravity drain pipe should not be raised or higher than the water tray after
installation.
Figure 2-19 Connection of drainage pipes
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