Installation Procedures - Mitsubishi Electric PUHZ-W HA Series Installationshandbuch

2. Installation location
Fig. 2-2
2.3. Windy location installation
When installing the outdoor unit on a rooftop or other location where the unit is
exposed to strong wind, do not face the air outlet of the unit directly into the winds.
Strong wind entering the air outlet may impede the normal airfl ow and it may result
in a malfunction.
The following shows three examples of precautions against strong winds.
1 Face the air outlet towards the nearest available wall keeping about 50 cm dis-
tance. (Fig. 2-2)
2 Install an optional air guide if the unit is installed in a location where strong winds
such as a typhoon, etc. may directly blow to the air outlet. (Fig. 2-3)
A Air outlet guide
3 Position the unit so that the outlet air can blow at right angle to the seasonal
wind direction, if possible. (Fig. 2-4)
B Wind direction
3. Installation procedure
A M10 (3/8") bolt
B Base
C As long as possible
D Vent
E Set deep in the ground
600
Fig. 3-1
4
Fig. 2-3
Fig. 2-4
F Max.30
G Min.360
H Min.10
600
175 175
(210) (210)
950(1020)
2.4. NECESSARY SPACE TO INSTALL
2.4.1. When installing a single outdoor unit (Refer to the last page)
Minimum dimensions are as follows, except for Max., meaning Maximum dimen-
sions, indicated.
The fi gures in parentheses are for 112/140 models.
Refer to the fi gures for each case.
1 Obstacles at rear only (Fig. 2-5)
2 Obstacles at rear and above only (Fig. 2-6)
3 Obstacles at rear and sides only (Fig. 2-7)
4 Obstacles at front only (Fig. 2-8)
* When using an optional air outlet guide, the clearance for 112/140 models is 500 mm or
more.
5 Obstacles at front and rear only (Fig. 2-9)
* When using an optional air outlet guide, the clearance for 112/140 models is 500 mm or
more.
6 Obstacles at rear, sides, and above only (Fig. 2-10)
• Do not install the optional air outlet guides for upward airfl ow.
2.4.2. When installing multiple outdoor units (Refer to the last page)
Leave 10 mm space or more between the units.
The fi gures in parentheses are for 112/140 models.
1 Obstacles at rear only (Fig. 2-11)
2 Obstacles at rear and above only (Fig. 2-12)
• No more than 3 units must be installed side by side. In addition, leave space as shown.
• Do not install the optional air outlet guides for upward airfl ow.
3 Obstacles at front only (Fig. 2-13)
* When using an optional air outlet guide, the clearance for 112/140 models is 1000 mm or
more.
4 Obstacles at front and rear only (Fig. 2-14)
* When using an optional air outlet guide, the clearance for 112/140 models is 1000 mm or
more.
5 Single parallel unit arrangement (Fig. 2-15)
* When using an optional air outlet guide installed for upward airfl ow, the clearance is 500
(1000) mm or more.
6 Multiple parallel unit arrangement (Fig. 2-16)
* When using an optional air outlet guide installed for upward airfl ow, the clearance is 1000
(1500) mm or more.
7 Stacked unit arrangement (Fig. 2-17)
• The units can be stacked up to 2 units high.
• No more than 2 stacked units must be installed side by side. In addition, leave space as
shown.
• Be sure to install the unit in a solid, level surface to prevent rattling noises during
(mm)
operation. (Fig. 3-1)
<Foundation specifi cations>
Foundation bolt
Thickness of concrete
Length of bolt
Weight-bearing capacity
• Make sure that the length of the foundation bolt is within 30 mm from the surface
of the base.
• Secure the base of the unit fi rmly with 4 M10 foundation bolts in solid locations.
Installing the outdoor unit
• Do not block the vent. If the vent is blocked, operation will be hindered and the
unit may breakdown.
• If the additional fi xation of the unit is necessary, use the installation holes on the
back of the unit to attach wires, etc. with self-tapping screws (ø5 × 15 mm or
less).
Warning:
• The unit must be securely installed on a structure that can sustain its
weight. If the unit is mounted on an unstable structure, it may fall down and
cause damage or injuries.
• The unit must be installed according to the instructions in order to minimize
the risk of damage by earthquakes, typhoons, or strong winds. An improp-
erly installed unit may fall down and cause damage or injuries.
* Figures in parentheses are for 112/140 unit types.
M10 (3/8")
120 mm
70 mm
320 kg