Hitachi RPIH-3.5UFE1NH, Инструкция по установке и обслуживанию, Страница: 18 / 26

• Optimum air distribution must be ensured.
• The air path must not be blocked.
• Condensation has to drain properly.
• The ceiling must be strong enough to bear the weight of the
indoor unit.
• The false ceiling must not incline.
• Ensure sufficient clearance for maintenance and servicing.
(See Fig. 3.1.1, Fig. 3.1.2.)
• Piping between the indoor and outdoor units should be
within the allowable limits. (Refer to the installation manual
of the outdoor unit.)
• The indoor unit, outdoor unit, power supply wiring and
transmission wiring should be kept at least 1 meter away
from televisions and radio to prevent image interference
and noise in these electrical appliances. (Noise may be
generated depending on the conditions under which the
electric wave is generated, even if a one-meter distance is
maintained.)
• Do not install the indoor unit in a machinery room or kitchen
where vapor from oil or its mist flows to the indoor unit. The
oil will deposit on the heat exchanger, thereby reducing the
performance of the indoor unit, and may deform and, in the
worst case, break the plastic parts of the indoor unit.
• Use suspension bolts to install the unit and check whether
the ceiling is strong enough to support the weight of the
unit. If there is a risk that the ceiling is not strong enough,
reinforce the ceiling before installing the unit. For bottom
intake (5.0HP~6.5HP), replace the chamber lid and the
intake-side flange in the procedure listed in the figures
below.
1
Remove the intake-side flange, then remove the chamber
lid. Refer to Fig. 3.1.3 for directions.
2 Reattach the removed chamber lid in the orientation shown
in Fig. 3.1.4.
Intake-side flange
Chamber lid
Filter (invalid for some models)
Fig. 3.1.3
Chamber lid
Intake-side flange
Filter (invalid for some models)
Fig. 3.1.4
3.2 Installation
3.2.1 Suspension bolts
1
Consider the pipe direction, wiring and maintenance
carefully, and choose the proper direction and location for
installation.
2 Install the suspension bolts as shown in Fig. 3.2.1 below.
g g
g
For concrete For steel beam
For wooden beam
(W3/8 or M10)
Suspension
bolts
Concrete
150 to160mm
Screw in
(100 to150kg)
Steel
bar
Wood rib
(60mm to 90mm)
Wooden beam
“ I ” shaped steel
beam
Suspension bolts
(W3/8 or M10)
Nut Round washer
Nut
Suspension bolts
Square washer
Fig. 3.2.1 Fixing the suspension bolts
3.2.2 Position of the suspension bolts and pipes
1 Mark the positions of suspension bolts, refrigerant pipes and
drain pipes.
2 The dimensions are shown below.
Air outlet
Air inlet
(Unit:mm)
Model a b c d
3.0HP 1231 1180 375 447
3.5/4.0HP 1177 1140 666 720
5.0/6.0/6.5HP 1334 1300 756 800
Fig. 3.3 Suspension bolts
INSTALLATION AND MAINTENANCE
HO2019290HA 12