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Penetrations
Inner wall (concealed)
Outer wall
D
C
A
B
Floor (fireproofing)
Penetrating portion on fire
limit and boundary wall
D
F
G
B
Ⓐ Sleeve
Ⓑ Heat insulating material
Ⓒ Lagging
Ⓓ Caulking material
Ⓔ Band
Ⓕ Waterproofing layer
Ⓖ Sleeve with edge
Ⓗ Lagging material
Ⓘ Mortar or other incombustible caulking
Ⓙ Incombustible heat insulation material
When filling a gap with mortar, cover the penetration part with steel plate so
that the insulation material will not be caved in. For this part, use
incombustible materials for both insulation and covering. (Vinyl covering
should not be used.)
Outer wall (exposed)
E
B
B
A
I
Roof pipe shaft
I
G
D
B
H
A
1 m
1 m
F
(3.28 ft)
(3.28 ft)
ELECTRICAL WIRING
Caution
- Follow ordinance of your governmental organization for technical
standard related to electrical equipment, wiring regulations and
guidance of each electric power company.
WARNING
!
Be sure to have authorized electrical engineers do the electric
work using special circuits in accordance with regulations and this
J
installation manual.
If power supply circuit has a lack of capacity or electric work
deficiency, it may cause an electric shock or fire.
- Install the Outdoor Unit communication cable away from the power
source wiring so that it is not affected by electric noise from the power
source. (Do not run it through the same conduit.)
- Be sure to provide designated grounding work to Outdoor Unit.
CAUTION
!
Be sure to correct the outdoor unit to earth. Do not connect ground
wire to any gas pipe, liquid pipe, lightening rod or telephone earth
line. If earth is incomplete, it may cause an electric shock.
- Give some allowance to wiring for electrical part box of Indoor and
Outdoor Units, because the box is sometimes removed at the time of
service work.
- Never connect the main power source to terminal block of
communication cable. If connected, electrical parts will be burnt out.
- Use the 2-core shielded wires for communication cable.(
the figure below) If communication cable of different systems are
wired with the same multiplecore cable, the resultant poor
transmitting and receiving will cause erroneous operations. (
in the figure below)
- Only the communication cable specified should be connected to the
terminal block for Outdoor Unit communication.
1 Unit
2 Unit
3 Unit
Master
Slave 1
Slave 2
Master
Slave 1 Slave 2 Slave 3
2-core shielded cables
4 Unit
Slave 3
Indoor
Indoor
Unit
Remote
control
Indoor
Indoor
Unit
Remote
control
21
mark in
mark
Unit
Remote
control
Unit
Remote
control
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