Hitachi RAS-10HNCE, Installation And Operation Manual

Page: 22 / 372

PMML0251A rev.2 - 02/2013 22
Units installation

Fix Unit to the wall
1 Fix the Unit onto the wall as the
figure indicates. (field supplied
stay)
2 Ensure the foundation so that
avoid the deforming and noise.
3 In case of prevention from vibra-
tion transfer to the building, use
rubber Mat.
Rubber Material
(Field Supplied)
Mark Dimension
Model RAS-3HVNPE RAS-(4-10)H(V)N(P/C)E
A (mm) 529 1109

Suspended unit
1 Suspend the unit as the drawing
indicates.
2 Ensure that wall can resist the
Outdoor unit weight indicated in
specification label plate.
3 It is recommended to select each
foot support to bear the full weight
of the unit (in order to consider
stress fatigue applied when unit is
working too).
Wall bracket (*)
Anchor Bolts (*)
(*) Field supplied
C A U T I O N
Pay attention to the following for installation:
•
Installation shall ensure that outdoor unit
will not incline, vibrate, make noise or fall
down by a blast of wind or in an earth-
quake. Calculate quake-resistance strength
to ensure that installation is strong enough
against falling. Fix the unit with wires (field
supplied) when installing in a location with-
out walls or windbreak and likely exposed
to a blast of wind.
•
To use a vibration-proof mat, fix four places
to the front and back.

Installing location where the unit will be exposed to strong wind.
Follow the instructions below to install
on the rooftop or a location without
surrounding buildings, where strong
wind is expected against the product.
1 Choose a location where the out-
let or inlet side of the product will
not be exposed to strong wind.
2
When the outlet is ex-
posed to strong wind:
Direct strong wind may cause lack
of air flow and adversely affect to
the operation.
C A U T I O N
Excessive strong wind against the outdoor unit
outlet may cause inverse rotation and damage
the fan and motor.
_PMML0251A_r2.indb 22 06/02/2013 9:04:59