3
E
E
O
S
O
S
I
K
J
H
G
F
A
B
C
D
[Fig. 8.2.2]
[Fig. 8.2.3]
[Fig. 8.2.1]
8.2
L
M
1
3
8
D
C
C
B
E
F
G
H
I
J
A
LO
HI
B
A
K
J
L
H
M
C
D
E
F
G
I
LO
HI
[Fig. 8.3.2]
[Fig. 8.3.3]
[Fig. 8.3.1]
A
Valve stem
B
Stopper pin
C
Packing (Accessory)
D
Connecting pipe (Accessory)
E
Open (Operate slowly)
F
Cap, copper packing
G
Service port
H
Flare nut
I
ø12.7 PUH-P200, 250
J
ø25.4 PUH-P200
ø28.58 PUH-P250
K
Field piping
L
Close-packed packing
M
Hollow packing
A
System analyzer
B
Lo Knob
C
Hi Knob
D
Ball valve
E
Liquid pipe
F
Gas pipe
G
Service port
H
Three-way joint
I
Valve
J
Valve
K
Cylinder
L
Scale
M
Vacuum pump
<A> [Ball valve (gas side)]
(This figure shows the valve in the
fully open state.)
A
Nitrogen gas
B
To indoor unit
C
System analyzer
D
Lo Knob
E
Hi Knob
F
Stop valve
G
Liquid pipe
H
Gas pipe
I
Outdoor unit
J
Service port
<B> [Ball valve (liquid side)]
[Fig. 8.4.4]
[Fig. 8.4.3]
[Fig. 8.4.2]
C
A
B
D
E
[Fig. 8.4.1]
B
A
D
C
E
E
E
D
A
B
D
F
G
B
<D> Floor (fireproofing)
E
I
B
<C> Outer wall (exposed)
A B
<A> Inner wall (concealed)
A B
D
C
<B> Outer wall
F
H
D
B
G
<E> Roof pipe shaft
I
A
J
1m
1m
<F> Penetrating portion on fire
limit and boundary 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
Insulater
A
Sleeve
B
Heat insulating material
C
Lagging
D
Caulking material
E
Band
F
Waterproofing laye
G
Sleeve with edge
H
Lagging material
I
Mortar or other incombustible caulking
J
Incombustible heat insulation material
8.3
8.4
