Installation Work - Hitachi HRNM Serie Installations- Und Betriebshandbuch

UNITS INSTALLATION
18
11.3. INSTALLATION PLACE PROVISION

11.3.1. INSTALLATION WORK

1. Secure the outdoor unit with the anchor
Flow direction
Concreate
Fix the outdoor unit to the anchor bolts by special
washer of factory-supplied accessory.
2. When installing the outdoor unit, fix the unit by anchor
bolts.
Regarding the location of fixing holes.
Hole for anchor bolt
NOTE:
When the mark (*) dimension is secured, piping work
from bottom side is easy without interference of
foundation.
3. Example of fixing outdoor unit by anchor bolts.
Cut this portion when this
type of anchor bolt is used.
If not, it is dificult to remove
the service cover
4. Fix the outdoor unit firmly so that declining, making
noise, and falling down by strong wind or earthquake
is avoided.
(Field supplied)
Base of outdoor unit
Nut
Special washer (M12)
Anchor Bolts
Filled Mortar
Concrete Anchor bolt
Fixing Plate
Both sides on the unit fixing can be
possible
When vibration measures are necessary, add
vibration proof rubber
(Field supplied)
5. When installing the unit on a roof or a veranda, drain
water sometimes turns to ice in a cold morning.
Therefore, avoid draining in an area where people
often use because it is slippery.
7. The whole of the base of the outdoor unit should be
installed on a foundation. When using vibration-proof
mat, it should also be positioned the same way.
When installing the outdoor unit on a fieldsupplied
frame, use metal plates to adjust the frame width for
stable installation as shown in Figure.
CORRECT
100mm
Base width of outdoor unit
Outdoor unit is
unstable
Frame
60mm
Frame widh
(Field supplied)
INCORRECT
100mm
Base width of outdoor unit
Outdoor unit is
stable
Metal plate
Frame
100mm or more
Metal plate
Recommended Metal Plate Size (Field-Supplied)
Material: Hot-Rolled Mild Steel Plate (SPHC)
Plate Thickness: 4.5T