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3.
3.
Guideline for each installation process
Guideline for each installation process
7
7. I
. Insu
nsu lation wo
lation wo rk
rk
7-1. Purposes of Insulation and Piping
7-1. Purposes of Insulation and Piping
(1) Explain the purposes.
(1) Explain the purposes.
(2) List the pipes to be insulated.
(2) List the pipes to be insulated.
①
①
Refrigerant pipe
Refrigerant pipe
②
②
Branch pipe
Branch pipe
③
③
Drainpipe
Drainpipe
7-2. Insulation Method (Procedure)
7-2. Insulation Method (Procedure)
①
①
Operational
Operational steps
steps
②
②
Bending
Bending vertical
vertical side
side of
of insulation
insulation
①
①
EPDM length should be
EPDM length should be
longer then pipe length.
longer then pipe length.
Do not extend EPDM by
Do not extend EPDM by
force
force
②
②
Put the pipe in EPDM
Put the pipe in EPDM
insulation carefully so that
insulation carefully so that
the pipe will not get
the pipe will not get
damaged with EPDM.
damaged with EPDM.
③
③
Apply bond on both side of
Apply bond on both side of
cut surface. Make sure to
cut surface. Make sure to
use the correct type of
use the correct type of
bond for EPDM cut
bond for EPDM cut surface
surface
attaching.
attaching.
④
④
Dry it until it
Dry it until it becomes
becomes
thick, sticky and does not
thick, sticky and does not
get detached.
get detached.
Use the original uncut
Use the original uncut
insulation material.
insulation material.
Only in special case is the
Only in special case is the
vertical cutting of the insulation
vertical cutting of the insulation
allowed.
allowed.
Apply bond both sides
Apply bond both sides of the
of the
surface of EPDM and press
surface of EPDM and press
them together for long lasting
them together for long lasting
bonding.
bonding.
Dry it until
Dry it until it becomes thick
it becomes thick
and sticky.
and sticky.
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