Hitachi RPIM-0.8FSN2E Installation Manual page 13

Standard Drainage installation: (By gravity)
1. Drain hose installation:
A. Insert the hose into the wire clamp.
B. Push the drain hose onto the Drain boss until the
hose reaches the end of the drain pan.
C. Fasten the drain pipe to the drain hose and put the
factory-supplied wire clamp.
D. Insulate the ends of the Drain hose around the wire
clamps to prevent any condensation
Wire Clamp
Drain Hose
Wire Clamp
Drain Pipe
NOTE:
Perform the drain piping installation as it is shown on
the figure below:
CAUTION:
Be carefull keeping the drain piping as much flat as
possible. If not, water leakage will occur.
2. Connect a syphon, as shown at the figure below.
>75 mm
Plug
Drainage installation for (-DU) units:
Drain Boss
Insulation
CAUTION:
The syphon
installation is very
important in order to
guarantee the proper
condensate draining.
Optional Drainage kit (For units without drain
pump)
For special cases those installation design finally requires
draining up (and was not desgined from the beginning of
the installation project), it is available the optional drain kit.
Optional Drain up mechanism kit
1.- Drain Pump
2.- Screw (2 units)
3.- Drain hose
4.- Rubber Plug
5.- Drain pump wire
Kit Installation:
Fan Cover 2
Maximum water head height in case of units with drain
pump (-DU models or units with drain up mechanism kit).
RPIM
Indoor unit
4
DRAIN PIPING
7
Drain pump
Drain hose
Drain pan
Fan Cover 1
1/25~1/100
Down Slope