1
PREPARATION
1. PREPARATION
1.1 Initial Check
Required Materials
–
Measure, Architectural
Information Regarding Installation Location.
Installation Location
–
Confirm that the final
Installation location is provided with convenient
piping and wiring work. Strong water runoff should
be avoided.
Installation Space
–
Check for obstacles, which
restrict condenser airflow or hamper maintenance
work in the space specified in Fig. 1.
Foundation
–
Check to ensure that the
foundation is flat, level, and sufficiently strong,
taking into account the maximum foundation
gradient (Fig. 2) and the unit weight balance.
Confirm elevation provision for the unit on a solid
base with an iron frame or concrete curbs shown
in Fig. 3, in order to obtain proper clearance
beneath
the
unit
for
either
rooftop
or
on-the-ground
installation.
Additionally,
for
on-the-ground installation, provide a gravel or
concrete space around the condenser air intake,
in order to avoid airflow obstruction due to grass
or other vegetation.
Unit
–
Check to ensure that the unit has been
transported without damage. File a damage claim
with the transportation companies if mishandling
due to transportation company negligence is
suspected.
1.2 Transportation
Secure the route to the final installation location
by confirming the packing dimensions.
(mm)
Minimum
Maintenance Space
Minimum Air
Intake Space
Maximum
Height of
Wall
a
b
h
A
B
C
D
E
H
Unit Dimensions
Model
When the unit is installed at a location, which is encircled with walls and obstruction to free air
circulation is suspected, consult HITACHI regarding the operation space.
Fig. 1. Operation Space
NOTE:
RUA-NP30ATS
2,000 2,450 1,910 1,000 1,000 1,000 1,000 1,400 1,910
RUA-NP20ATS
1,600
2,120 1,560 1,000 1,000 1,000 1,000 1,400 1,910
