Hitachi SET FREE Series Instruction Manual page 28

UNIT INSTALLATION
7.3.2 Installation with walls in three directions
single installation
> 300 + h1/2
> 10
W
> 500 + h2/2
rear to rear installation 1
> 500 + h2/2
> 10
> 900
W
> 20 > 20 > 500 + h2/2
?
n o t e
• All measurements are in mm.
• Top view. The arrow ▼ indicates the front of the unit.
• W: No limit for side wall height.
7.3.3 Installation with walls in four directions
single installation
> 300 + h1/2
W
> 200
> 200
W
> 800
> 500 + h2/2
rear to rear installation 1
> 500 + h2/2
> 200 > 200
> 1600
W
W
> 800
> 800
> 500 + h2/2
> 200
> 200
?
n o t e
• All measurements are in mm.
• Top view. The arrow ▼ indicates the front of the unit.
• W: No limit for side wall height.
7.3.4 Considerations
• The dimensions considered in the figures include the space
necessary for typical installation, and maintenance work for
operation in refrigeration mode at an outdoor temperature of
35 °C.
• If the outdoor temperature is higher and if there is a
possibility of a short circuit between the inlet and outlet air,
locate the most suitable dimensions by calculating the air
flow current in comparison with the dimensions given.
18 PMML0479 rev.2 - 02/2018
installation in the same direction
> 300 + h1/2
> 10
> 500
W
> 20
> 20 > 500 + h2/2
rear to rear installation 2
> 200
> 500
W
>400 >400 > 500 + h2/2
installation in the same direction
> 300 + h1/2
> 200
> 200
W
> 900
W
> 800 > 800
> 200 > 200 > 500 + h2/2
rear to rear installation 2
> 500 + h2/2
> 200 > 200
> 900
W W
> 800 > 800
> 400 > 400 > 500 + h2/2
• For installation in several groups, a maximum of six units (A)
one metre apart can be grouped.
• If the unit is surrounded by walls on all four sides, keep one
of the walls partially open.
• Keep the upper side open to prevent mutual interference of
inlet and outlet air for each outdoor unit.
7.3.5 Foundations
The foundations for the installation of the outdoor unit must be
more than 150 mm above ground level.
The foundations require perimeter drainage to help drain
condensation.
When a system of condensation drainage pipes is required for
the outdoor unit, the genuine accessory DBS-TP10A should
be used. Do not fit drainage pipes or collection trays in cold
climates, as they could freeze and break.
Details of anchor bolt installing (example)
Min. 80
Anchor bolt (M12) (Field-supplied)
Nut (Field-supplied)
5 70
Washer (Field-supplied)
18
Vibration proof mat (Field-supplied)
The corner of the outdoor unit anchoring foot
must be located on the vibration proof mat
Filling mortar
Hole for mortar (∅ 100 x depth 150)
Foundation
Drainage
Min. 100
Drainage (Example)
(Width 100 x depth 20)
18
70
!
D a n G e r
Drainage must not take place in areas frequented by pedestrians. In
low temperatures, the drainage water could freeze and lead to falls.
(Unit: mm)
(729) (729) 18
(625) 70
765