7
[Fig. 10.3.1]
[Fig. 10.3.3]
10.3
A
A
: Nitrogen gas
B
: To indoor unit
C
: System analyzer
D
: Low knob
E
: Hi knob
F
: Valve
G
: Low-pressure pipe
H
: High-pressure pipe
I
: Outdoor unit
J
: Service port
A
: System analyzer
B
: Low knob
C
: Hi knob
D
: Valve
E
: Low-pressure pipe
F
: High-pressure 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
10.4
[Fig. 10.4.4]
[Fig. 10.4.3]
[Fig. 10.4.2]
C
A
B
D
E
[Fig. 10.4.1]
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
: High-pressure pipe
B
: Low-pressure pipe
C
: Electric wire
D
: Finishing tape
E
: Insulator
D
F
G
B
<D> Floor (waterproofing)
E
A
B
<C> Outer wall (exposed)
F
H
D
B
G
<E> Roof pipe shaft
I
A
J
1m
1m
<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.
[Fig. 10.3.2]
LOW
HI
B
A
K
J
L
H
M
C
D
E
N
N
O
F
G
I
