Hitachi RAS-3HVRNME-AF, Installation And Operation Manual, Page: 23 / 40

23
PMML0205A rev.4 - 11/2012
ENGLISH
Stack installation (allowed up to 2 Units)
Blocked in Inlet Side
Single Installation Multiple Installation
Close the part A not to allow the outlet air bypassed. Install to avoid
the drain water from upper unit falling on the lower unit.
Allow 100 mm of space between units. Serial sideways installation
allowed up to two units. Leave open both right and left sides. Close the
part A not to allow the outlet air bypassed. Install to avoid the drain water
from upper unit falling on the lower unit
Outlet Side Blocked
Be sure to use the fan direction guide. Close the part A not to allow
the outlet air bypassed. Install to avoid the drain water from upper
unit falling on the lower unit.
Be sure to use the fan direction guide. Allow 100mm of space between
units. Serial sideway installation allowed. but leave open both right and
left sides. Close the part A not to allow the outlet air bypassed. Install to
avoid the drain water from upper unit falling on the lower unit.
Multiple Installation in Multiple Rows
Serial Installation in Multiple Rows (E.g. Rooftop)
Allow approx. 100 mm of space from the side unit.
Leave open both right and left sides.
The length A is as shown in the following table:
L A
0<L≤1/2H
≤
200
1/2H<L≤H
≤
300
L
H
Note: When L > H, use a base for outdoor unit to make L ≤ H. Close the base not to allow the outlet air bypassed. Be sure to
use the fan direction guide in order to ensure the length marked with .
- Do not stack more than two units in height.
UNITS INSTALLATION