Rpf(I)-Floor Type (1.0-2.5)Fsn2E - Hitachi RCI-1.0FSN3 Service Manual

3 Piping work and
refrigerant charge
C A U T I O N
• Pay attention not to splash water to the electrical parts such as the fan motor or thermistors.
• When the common drain piping is connected with other indoor units, the connected position of each indoor
unit must be higher than the common piping. The size of common drain pipe must be large enough according
to the unit size and number of units.

3.5.11 RPF(I)-Floor type (1.0-2.5)FSN2E


Refrigerant pipe installation
The correct position for the refrigerant pipe connection is shown below.
gas
pipe
Liquid
pipe
Drain
pipe
Models
RPF(I)-1.5FSN2E
RPF(I)-2.0FSN2E
RPF(I)-2.5FSN2E

Drain pipe installation
The correct position for the drain hose connection is shown below.
Prepare a polyvinyl chloride (PVC) pipe with an outer diameter of
18.5 mm.
Secure the pipe with the adhesive supplied.
Insulate the drain hose after connecting the pipe, as indicated in
the figure.
124
SMGB0077 rev.0 - 01/2013
Gas pipe mm (inches)
Ø12.70 (1/2)
Ø15.88 (5/8)
Gas
pipe
Liquid
pipe
Drain
pipe
Liquid pipe mm (inches)
Ø6.35 (1/4)
Ø9.52 (3/8)
Drain hose mm
Ø18.5
Drain pipe
Insulating material:
(field-supplied)
PVC pipe
(field-supplied)