3 Piping work and refrigerant charge
Refrigerant and drain hose installation
SMGB0099 rev.0 - 12/2016
121
3
3.5.9 RPI-(16.0/20.0)FSN3PE(-f) - Ducted indoor unit
Refrigerant pipe connection
The location of Liquid, Gas and the Drain Pipe connection is shown below.
Liquid Pipe
Liquid Pipe
Wiring
holes
Gas Pipe
Gas Pipe
Drain
Pipe
(mm)
mm (in)
Model
RPI-16.0FSN3PE(-f) RPI-20.0FSN3PE(-f)
Gas Piping
Ø19.05 (3/4”)
Ø22.2 (7/8”)
Liquid Piping
Ø9.52 (3/8”)
Ø9.52 (3/8”)
Required multi kits
The following multikits (sold separately) are necessary to interconnect piping between outdoor and indoor unit:
Indoor Unit
Multikit reference
RPI-16.0FSN3PE(-f)
E162SN3
RPI-20.0FSN3PE(-f)
E242SN3
(Picture for illustrative purpose only)
Drain pipe installation
For condense draining, prepare a polyvinyl chloride pipe
with a Ø25mm (outer diameter).
Fasten the field supplied pipe to the drain hose with
adhesive.
The drain piping should be performed with a down-slope
pitch of 1/25 to 1/100.
Connect a syphon, as shown at the figure below.
?
N O T E
Keep Electrical Box and Drain Pipe connection free of refrigerant
pipes.
>75 mm
Slope 2%
Plug
?
N O T E
If there is excessive clearance between the drain pipe connection and the drain hose, add a sealing material between both parts in order
to fit and not deform the drain hose.
