Hitachi FSG Series, Technical Catalogue

Page: 330 / 424

14
/6
DRAIN PIPING
14.6 RPK (WALL TYPE)
1. The standard direction of drain piping connection is the
right side as viewed from the discharge grilles. However,
it can be performed from the left side or rear side.
2. When the left side drain piping connection is performed,
remove the cap of left side drain pipe, and then attach
this cap to the right side drain pipe in order to change
drain piping connection from right side to left side.
3. Provide a vinyl chloride tube, of a Ø26 mm outer
diameter (VP20).
4. Connect a drain piping according to below figure.
§
Do not create an upward slope from the unit.
§
Use vinyl chloride type adhesive for connecting the
drain pipe.
5. Tightly squeeze the drain hose with the wire clamp after
inserting the drain pipe into the drain hose completely.
6. Pour water onto the drain pan and check to ensure that
water flows smoothly.
14.7 RPF AND RPFI (FLOOR TYPE AND FLOOR CONCEALED TYPE)
1. The position of the drain pipe connection is shown in the
figure.
2. Prepare a polyvinyl chloride pipe with a Ø18.5 mm outer
diameter.
3. Fasten the tubing to the drain hose with an adhesive.
4. Insulate the drain pipe after connecting the drain hose as
shown.
14.8 OUTDOOR UNIT DRAIN-KIT (DBS-26)
In the case that drain water from the heat exchanger of the
outdoor unit is required to be collected, use the Drain Kit.
However, it is not recommended to use it in a snow fall area.
If the drain water is required to be collected completely,
provide a field-supplied drain pan under the outdoor unit.
Model
Drain Kit Quantity
(Units)
RAS-5HP 3
RAS-8/10HP 4
RAS-16/20HP 8
RAS-24/30HP 12
Contour of the Unit
123
Ø 65 Hole for
Rear Side
Connection for
Wiring and Piping
890
Drain Piping Connection
for Vinyl Pipe
37.5
Change Drain piping connection
Provide a downward
slope to flow drain
water smoothly
Use adhesive tape
24 m
m
VP20
Drain Hose
Insulation (field-supplied)
Polyvinyl Chloride Tube
(field-supplied)