17
GB
:KHQ¿OOLQJDJDSZLWKPRUWDUFRYHUWKHSHQHWUDWLRQSDUWZLWKVWHHOSODWHVR
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.)
Insulation materials for the pipes to be added on site must meet the following
VSHFL¿FDWLRQV
Pipe size
ø6.35 to 25.4 mm
[1/4 to 1 in]
ø28.58 to 41.28 mm
[1-1/8 to 1-21/32 in]
Thickness
10 mm min.
[13/32 in min.]
15 mm min.
[19/32 in min.]
Temperature Resistance
100°C min. [212°F min.]
*
Installation of pipes in a high-temperature high-humidity environment, such
DVWKHWRSÀRRURIDEXLOGLQJPD\UHTXLUHWKHXVHRILQVXODWLRQPDWHULDOV
WKLFNHUWKDQWKHRQHVVSHFL¿HGLQWKHFKDUWDERYH
:KHQFHUWDLQVSHFL¿FDWLRQVSUHVHQWHGE\WKHFOLHQWPXVWEHPHWHQVXUHWKDW
WKH\DOVRPHHWWKHVSHFL¿FDWLRQVRQWKHFKDUWDERYH
Penetrations
[Fig. 10.4.4]
(Unit: mm [in])
<A> Inner wall (concealed)
<B> Outer wall
A B
A B
C
D
<C> Outer wall (exposed)
<D>
)ORRUZDWHUSURR¿QJ
EB
I
D
F
G
B
<E> Roof pipe shaft
<F>
3HQHWUDWLQJSRUWLRQRQ¿UHOLPLWDQG
boundary wall
G
D
B
H
F
1000
1000
[39-3/8]
[39-3/8]
A
I
J
A
Sleeve
B
Heat insulating material
C
Lagging
D
Caulking material
E
Band
F
:DWHUSURR¿QJOD\HU
G
Sleeve with edge
H
Lagging material
I
Mortar or other incombustible caulking
J
Incombustible heat insulation material
10.4. Thermal insulation of refrigerant
piping
Be sure to add insulation work to refrigerant piping by covering liquid pipe and
gas pipe separately with enough thickness heat-resistant polyethylene, so that
no gap is observed in the joint between indoor unit and insulating material, and
LQVXODWLQJPDWHULDOVWKHPVHOYHV:KHQLQVXODWLRQZRUNLVLQVXI¿FLHQWWKHUHLVD
possibility of condensation drip, etc. Pay special attention to insulation work in
the ceiling plenum.
[Fig. 10.4.1]
A
C
B
D
E
A
Steel wire
B
Piping
C
Oily mastic asphalt or asphalt
D
Heat insulation material A
E
Outer covering B
Heat
insulation
material A
*ODVV¿EHU6WHHOZLUH
Ad Heat - resistant polyethylene foam + Adhesive tape
Outer
covering B
Indoor
Vinyl tape
Floor exposed Water-proof hemp cloth + Bronze asphalt
Outdoor
Water-proof hemp cloth + Zinc plate + Oily paint
Note:
:KHQXVLQJSRO\HWK\OHQHFRYHUDVFRYHULQJPDWHULDODVSKDOWURR¿QJ
shall not be required.
No heat insulation must be provided for electric wires.
[Fig. 10.4.2]
A
B
C
D
E
A
B
E
D
E
A
Liquid pipe
B
Gas pipe
C
Electric wire
D
Finishing tape
E
Insulator
[Fig. 10.4.3]
[Fig. 10.3.3]
<If the cylinder does not have a siphon pipe, charge with the refrigerant cylinder upside-down.>
A
A
Siphon pipe