Hitachi RPI FSN4E Serie Manual De Instalación Y Funcionamiento página 15

DRAIN PIPING
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
?
N O T E
Perform the drain piping installation as it is shown on the figure below:
!
C A U T I O N
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
!
C A U T I O N
The syphon installation is very important in order to guarantee the proper
condensate draining.
9 PMML0246A rev.4 - 05/2016
Drain boss
Insulation
Plug
Drainage installation for (-DU) units:
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
q
o
 Drain pump
 Screw (2 units)
 Drain hose
 Rubber plug
 Drain pump wire
Kit installation:
Drain pan
Fan cover 1
Fan cover 2
Maximum water head height in case of units with drain pump
(-DU models or units with drain up mechanism kit).
Indoor unit
r
p
s
Drain pump
Drain hose
RPIM
1/25~1/100
Down slope