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4
[Fig. 9.3.1]
[Fig. 9.3.3]
[Fig. 9.3.2]
9.3
A
A: Nitrogen gas
B:To indoor unit
C: System analyzer
D: Low knob
E: Hi knob
F:Valve
G: Liquid pipe
H: Gas pipe
I: Outdoor unit
J: Service port
A: System analyzer
B: Low knob
C: Hi knob
D:Valve
E: Liquid pipe
F: Gas pipe
G: Service port
H: Three-way joint
I:Valve
J:Valve
K: R410A cylinder
L: Scale
M:Vacuum pump
N:To indoor unit
O: Outdoor unit
A: Syphon pipe
D
C
C
B
B
E
F
G
H
I
J
A
LOW
HI
LOW
HI
B
A
K
J
L
H
M
C
D
EN
N
O
F
G
I
9.4
[Fig. 9.4.4]
[Fig. 9.4.3][Fig. 9.4.2]
C
A
B
D
E
[Fig. 9.4.1]
B
A
D
C
E
E
E
D
A
B
A B
<A> Inner wall (concealed)
A B
D
C
<B> Outer wall
A: Steel wire B: Piping
C: Asphaltic oily mastic or asphalt
D: Heat insulation material A
E: Outer covering B
A: Liquid pipe B: Gas pipe
C: Electric wire D: Finishing tape
E: Insulator
D
F
G
B
<D> Floor (waterproofing)
E
I
B
<C> Outer wall (exposed)
F
H
D
B
G
<E> Roof pipe shaft
I
A
J
1m1m
<F> Penetrating portion on fire
limit and boundary wall
A: Sleeve B: Heat insulating material
C:Lagging D: Caulking material
E: Band F:Waterproofing layer
G: Sleeve with edge H: Lagging material
I: Mortar or other incombustible caulking
J: Incombustible heat insulation material
B In case of the R410A cylinder having no syphon pipe.