Installation Instructions - Panasonic U-72MF1U9 Technical Data Manual

4. Installation Instructions

4-1. Selecting the Installation Site for Outdoor Unit
AVOID:
heat sources, exhaust fans, etc.
damp, humid or uneven locations
indoors (no-ventilation location)
DO:
choose a place as cool as possible.
choose a place that is well ventilated.
allow enough room around the unit for air intake/
exhaust and possible maintenance.
use lug bolts or equal to bolt down unit, reducing vibration
and noise.
Installation Space
1
Install the outdoor unit where there is enough space for
ventilation. Otherwise the unit may not operate properly. Fig.
2-7 shows the minimum space requirement around the outdoor
units when 3 sides are open and only 1 side is shuttered,
with open space above the unit. The mounting base should
2
be concrete or a similar material that allows for adequate
drainage. Make provisions for anchor bolts, platform height,
and other site-specific installation requirements.
3
CAUTION
4
NOTE
Do not do any wiring or tubing within 1 ft. of the front
5
panel, because this space is needed as a servicing
space for the compressor.
Ensure a base height of 4 in. or more to ensure that
drainage water does not accumulate and freeze
6
around the bottom of the unit.
If installing a drain pan, install the drain pan prior to
installing the outdoor unit.
7 * Make sure there is at least 6 in. between the outdoor
unit and the ground.
Also, the direction of the tubing and electrical wiring
should be from the front of the outdoor unit.
8
Leave space open above the
unit.
Construct louvers or
other openings in the wall,
if necessary, to ensure
adequate ventilation.
Hot air
Example of installation of 2 units
(When wall height is below 6 ft.)
* More than 4 in.
More than
2 in.
* More than 4 in.
* However, be sure to ensure a space of 1 ft. or more at
either the right side or the rear of the unit.
113 (Ceiling panel dimensions)
35 4
(Ceiling panel dimensions) (Ceiling panel dimensions)
7-7/8
31-1/8
(Installation hole pitch) (Installation hole pitch)
109-1/16 (Installation hole pitch)
2 - 32
Design of 3WAY VRF SYSTEM
Exhaust fan
Heat
source
Out-
door
unit
Fig. 2-6
* More than 4 in.
More than
1.7 ft.
Fig. 2-7
35 4 35
(Ceiling panel dimensions)
7-7/8
31-1/8 31-1/8
(Installation hole pitch)
Top view
Fig. 2-8
Unit: in.