Hitachi RAC-25WPA RAC25WPA ユーザーズマニュアル
製品コード
RAC25WPA
12-2
12.1 WALL TYPE INDOOR
Installation of drain hose
CAUTION:
•
CAUTION:
•
You are free to choose the side (left or right) for the
installation of drain hose. Please ensure the smooth
flow of condensed water of the indoor unit during
installation. (Carelessness may result in water leakage)
installation of drain hose. Please ensure the smooth
flow of condensed water of the indoor unit during
installation. (Carelessness may result in water leakage)
CAUTION
•
•
Be sure that the drain hose is not loosely connected or
bent
bent
12.2 FLOOR TYPE INDOOR
12.2.1 DRAIN PIPE
•
Make sure drain pipe slopes downward so that
drain flows smoothly without being trapped in the
middle.
drain flows smoothly without being trapped in the
middle.
•
The drain hose (connecting port outer diameter:
16mm or 20mm, length: 600mm) is included in the
indoor unit. Prepare a drain pipe as shown in the
following figure.
16mm or 20mm, length: 600mm) is included in the
indoor unit. Prepare a drain pipe as shown in the
following figure.
•
To prevent condensation, the indoor drain pipe
should be covered with heat insulation material
with a thickness of more than 10mm.
should be covered with heat insulation material
with a thickness of more than 10mm.
•
After piping is completed, check to make sure that
drain discharges smoothly. Seal the drain pipe
tightly with tape to keep dirt out.
drain discharges smoothly. Seal the drain pipe
tightly with tape to keep dirt out.
12.3 4 WAY CEILING CASSETTE
12.3.1 DRAIN PIPE INSTALLATION
•
Use PVC pipe VP20 (O.D. 26mm) for drain pipe.
•
Be sure to roll insulation (thickness 10mm or
more) fro the drain pipe at the indoor side.
more) fro the drain pipe at the indoor side.
•
Always draw the drain pipe downward so that
water flows smoothly. Fix it (ex. by hanger) to
prevent a peak and trap
water flows smoothly. Fix it (ex. by hanger) to
prevent a peak and trap
•
In case drain piping cannot be done smoothly due
to obstacles, it can also be arranged outside main
unit as shown in the drawing below.
to obstacles, it can also be arranged outside main
unit as shown in the drawing below.
12.3.2 CONNECTION OF DRAIN PIPE
•
Securely glue connection part of drain hose and
PVC pipe, using PVC adhesive.
PVC pipe, using PVC adhesive.
•
If gluing of drain hose and PVC pipe is too weak,
water leakage may occur. Be sure to wrap
generally-available insulator (10mm or more of
water leakage may occur. Be sure to wrap
generally-available insulator (10mm or more of
Bending
upwards
upwards
Condensed
water pond
water pond
Ditch
Downward 1/25~1/100
Seal
Insulation (thickness
10mm or more)
10mm or more)
Trap
No insulation
Stagnant
water
water
Ditch
Wrapping
To be
adhesion
adhesion
Indoor
unit
unit
Insulation pipe for
flare section ①
flare section ①
Refrigerating pipes
with insulation
with insulation
Purchase in the field
Insulation at indoor unit
Binder ②
Encroach (2~4mm)
VP20
VP20
Insulation
(thickness
10mm or more
(thickness
10mm or more
Use PVC
pipe VP20
pipe VP20
150mm or less
Downward pitch 1/25~1/100
115
m
m
o
r l
es
s
Condensed
water pond
water pond
Front view
Drain
hose
Connecting
section
Drain pipe (procure
locally)
Make sure drain
hose slopes
donwward
hose slopes
donwward
124
600
104
Right side
view
64