Specifications

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9) Drainage test
a) During trial operation, make sure that drainage is properly execued and check that leakage is not found at connections.
b) Be sure to carry out a drainage test when installing the system during a heating season.
c) When installing the system in a building under construction, carry out the drainage test before ceiling tiles are in-
stalled.
1 Supply approx 1000cc of water through the outlet of the unit using a feed water pump.
2 Make sure that drainage is proceeding properly at the see-through outlet of the unit.
*Also confirm the revolving sound of the condensate motor when checking the drainage.
3 Then remove the drain plug at lower section of the unit to drain water off. After making sure water is not left, restore
the drain plug to the original position.
Forced drain pump operation
1 Turn on dip switch 5-3 on the PCB of the indoor unit. The drain pump operates continuously.
2 After the test, be sure to turn off the dip switch.
(If the electrical work has not been completed, connect a convex coupling to the drain pipe to provide a supply port and confirm the
draining status of the piping system.)
10 )Drainage from the lower drain socket
Only if the drain pipe can be installed in a
downhill grade (1/50-1/100), the lower
drain socket can be used for connecting
to the drain pipe as illustrated.
(Disconnect the connector for the drain
motor)
As shown in the sketch to the ri-ght, dis-
connect the drain motor connector CnR
(blue color codi-ng).
Caution:
If the system is started with this connector
connected as is, drain water is discharged
out of the upper drain socket causing a
heavy water lekage.
The upper drain socket
The lower drain socket
(Piping connection)
A hard PVC general-purpose pipe
Heat insulator
Rubber plug
(Remove the rubber plug)
Disconnect Condensate
motor connector
CnR (2P Blue)
Remove the gromment.
Be sure to restro it to the original
position after the test is over.
Insert a water filing hose by approx 50 mm and feed water.
(Be sure to insert the water filing hose in a downward direction.)