Installing The Outdoor Unit; Installing The Refrigerant Piping - Mitsubishi Electric MXZ-8C48NA Manuel D'installation

4. Installing the outdoor unit

B
Min. 18-11/16
23-5/8
Min. 1
Fig. 4-1

5. Installing the refrigerant piping

c1
b1
H
a1
h1
a2 a3 a4
h3
Fig. 5-1
Total piping length
Farthest piping length (L) *1
Permissible
Piping length between outdoor unit and branch boxes
length
(one-way)
Farthest piping length after branch box (l)
Total piping length between branch boxes and indoor units
In indoor/outdoor section (H) *2
Permissible
In branch box/indoor unit section (h1)
height difference
(one-way)
In each branch unit (h2)
In each indoor unit (h3)
tent noise during normal system operation in very quiet environments. Please be aware of this important information when installing and locating the indoor unit within the
conditioned space.
*2 Branch box should be placed within the level between the outdoor unit and indoor units.
6
A
D
E
C
A M10 (3/8") bolt
B Base
C As long as possible
D Vent
E Set deep in the ground
23-5/8
8-7/8 8-7/8
41-11/32
A Outdoor unit
B Branch box
C Indoor unit
D
L
b2
h2
I
a5 a6 a7 a8
(inch)
ing operation. (Fig. 4-1)
Foundation bolt
Thickness of concrete
Length of bolt
Weight-bearing capacity
bottom surface of the base.
tions.
Installing the outdoor unit
down may result.
attach wires, etc., if necessary to install the unit. Use self-tapping screws (ø5 ×
15 mm, ø13/16" × 19/32" or less) and install on site.
Warning:
weight.
If the unit is mounted on an unstable structure, it may fall down and cause
damage or injuries.
incorrectly installed unit may fall down and cause damage or injuries.
Caution:
vibration.
R410A refrigerant.
Use C1220 copper phosphorus, for copper and copper alloy seamless pipes, to con-
table to the below. Make sure the insides of the pipes are clean and do not contain
any harmful contaminants such as sulfuric compounds, oxidants, debris, or dust.
Warning:
When installing or relocating, or servicing the outdoor unit, use only the speci-
other refrigerant and do not allow air to remain in the lines.
mechanical failure or system malfunction or unit breakdown. In the worst
case, this could lead to a serious impediment to securing product safety.
ø6.35 mm (1/4 inch), ø9.52 mm (3/8 inch),
ø12.7 mm (1/2 inch)
ø15.88 (5/8 inch)
or higher according to local standards.
| c1 + b1 + a1 |, | c1 + b1 + a2 |, | c1 + b1 + a3 |, | c1 + b1 + a4 |, | c1 + b1 + a5 |, | c1 + b2 +
a6 |, | c1 + b2 + a7 |, | c1 +
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M10 (3/8")
120 mm (4-23/32")
70 mm (2-3/4")
320 kg (705 lbs)
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Thickness 0.8 mm (1/32 inch)
Thickness 1.0 mm (5/128 inch)
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