Hitachi RAC-25WPA RAC25WPA ユーザーズマニュアル
製品コード
RAC25WPA
10-27
5. Installation of indoor unit
•
Set nut and washer on suspension bolt and hook
it to suspend clamp by lifting the indoor unit.
it to suspend clamp by lifting the indoor unit.
•
Make sure that indoor unit is kept level using a
level or vinyl hose with water.
level or vinyl hose with water.
•
Fix the indoor unit so that the space between
bottom surfaces of ceiling and indoor unit is
58mm.
bottom surfaces of ceiling and indoor unit is
58mm.
CAUTION
•
Be sure to install the indoor unit level. If the
indoor unit is inclined, water may leak.
indoor unit is inclined, water may leak.
•
If the space between bottom surfaces of indoor
unit and ceiling is not correct, there may be a
gap between the grille and ceiling surface, which
will cause dripping of condensed water.
unit and ceiling is not correct, there may be a
gap between the grille and ceiling surface, which
will cause dripping of condensed water.
INSTALLATION OF SEMI DUCT TYPE
①
Discharge grille
②
Chamber of discharge grille Ø150mm
③
Chamber of discharge of unit side Ø150mm
④
Suction grille
⑤
Flexible duct Ø150mm 1m
Flexible duct Ø150mm 2m
•
Select the indoor unit position, fixing direction of air
outlet so that cool/hot air reaches all the room.
Standard position of the indoor unit is with the wall side
on the ceiling.
outlet so that cool/hot air reaches all the room.
Standard position of the indoor unit is with the wall side
on the ceiling.
•
Permissible length and bending of duct.
Permissible
length
length
Bending
Discharging side
duct
duct
4m or less added
to suction side
to suction side
90° or less, 1
section
section
•
Secure the space for installation, inspection or
servicing.
servicing.
•
Apply water-proof treatment to back surface of ceiling
under the indoor unit, to prevent water drop.
under the indoor unit, to prevent water drop.
•
Do not allow any obstacle to block air flow within 1m of
suction grille
suction grille
•
1. Installation figure
View from ceiling
Cross section
2. Opening on ceiling and suspension bolt position
Front view
Plane view
A level
Ceiling
58mm
Suspension bolt (M10)
(Local purchase)
Hexagun nut (M10)
(
Local purchase)
Washer
Opening on ceiling 96
Discharge on opening size
Suspension bolt 347
(846x96)
520
35
48
Suction opening size
(960x520)
Flexible duct
Chamber of discharge grille
Chamber of discharge of unit side
Indo
or
un
it
Ope
nin
g o
n c
eiling
8
46
Ope
nin
g o
n c
eiling
9
60
S
us
pe
ns
ion b
olt
7
40
S
us
pe
ns
ion b
olt
7
90
53
30
450
140
53
Discharge grille
Suction grille
Flexible duct
Suspension bolt
(M10: local
purchase
Above 300
Above 300
A
b
o
ve 300
790
750
330
210
54
Suspension bolt
posiition
790x347
Opening on
ceiling
790
140
35
450
30
520
347
(Local purchase)