Hitachi RPIH-3.5UFE1NH, Инструкция по установке и обслуживанию, Страница: 19 / 26

3.2.3 Installation of the indoor unit
The installation of the indoor unit is shown in Fig. 3.4.
Suspension bolts (4-M10 or W3/8)
( Field supplied )
Nuts and washers
(4-M10 or W3/8)
( Field supplied )
Fig. 3.4 Installation of the indoor unit
1 Fix the suspension bolts and the nuts as shown in Fig. 3.5.
Nuts are fixed by four bolts.
Indoor unit
Nut
Approx 50mm
Washer
Double nut
Fig. 3.5 Suspension bolts and nuts
2 Install the indoor unit
• As shown in the following figure, place the left hanger
bracket on the nuts and washers of the suspension bolts.
• Make sure that the left hanger bracket has been fixed on the
nuts and washers securely. Install the right hanger bracket
suspension hook on the nuts and washers.
(When installing the indoor unit, you can slightly loosen the
suspension bolts.)
Hanger bracket
Double nuts and
washers
Suspension bolt
Rack
Indoor unit
Fig. 3.6
3.2.4 Adjusting of the unit level
1
Check to ensure that the foundation is flat, taking into
account the maximum foundation gradient.
2 The unit should be installed that the drainage side is slightly
(0mm~5mm) lower than other sides for adequate drainage.
5m
m
Fig. 3.7
3 After the adjustment, tighten the nuts and smear the thread
locker on the suspension to prevent the nuts from loosening.
! CAUTION
1 During the installation, please cover the unit with the plastic cloth
to keep it clean.
2 Make sure that the unit is installed levelled by using a level or a
plastic tube filled with water in instead of a level. Adjust the top
surface of the unit to the surface of the water at both ends of the
plastic tube and adjust the unit horizontally. (One thing to watch
out for in particular is if it is installed so that the slope is not in the
direction of the drain piping, as this might cause leakage.)
3.2.5 Installation of the duct
! CAUTION
• Make sure that the external static pressure of the unit is within range.
• Connect the duct and intake-side flange.
• Connect the duct and outlet-side flange.
•
The connection of indoor unit and air duct must be well sealed and
kept warm with insulation material.
<Example>
Static pressure box Canvas duct
Canvas duct Static pressure box
Insulation material
Ducted
unit
Service mouth
Air-outlet
The valve for the amount of air
(600mm·x 600mm)
Air inlet (with filter)
Outside air
(through
the filter)
The valve for the
amount of air
INSTALLATION AND MAINTENANCE
HO2019290HA 13
EN