25
English
Installation Pr
oc
edur
e
CAUTION
࡛
Must fit tightly against body without any gap.
࡛
Install the insulation not to get wider and use the
adhesives on the connection part of it to prevent
moisture from entering.
࡛
Wind the refrigerant pipe with insulation tape if it is
exposed to outside sunlight.
࡛
Install the refrigerant pipe respecting that the
insulation does not get thinner on the bent part or
hanger of pipe.
࡛
Add the additional insulation if the insulation plate
gets thinner.
Refrigerant pipe insulation
Hanger
Additional
insulation
a
a x 3
࡛
Must fit tightly against body without any gap.
࡛
All refrigerant connection must be accessible, in order
to permit either unit maintenance or removal.
5
Select the insulation of the refrigerant pipe.
࡛
Insulate the gas side and liquid side pipe, noting the
insulation thickness that must differ according to the
pipe size.
࡛
Standard: Less than an indoor temperature of 30°C,
with humidity at 85%. If installing in a high humidity
environment, use one grade thicker insulator by
referring to the table below. If installing in an
unfavourable environment, use thicker one.
࡛
The heat-resistance temperature of the insulator must
be more than 120°C.
Pipe
Pipe size
(mm)
Insulation Type (Heating/Cooling)
Remarks
Standard
[30°C, 85%]
High humidity
[30°C, over 85%]
EPDM, NBR
Liquid
pipe
Ø6.35 to Ø9.52
9t
ॱ
Internal temperature
is higher than 120°C
Ø12.7 to Ø50.80
13t
ॱ
Gas pipe
Ø6.35
13t
19t
Ø9.52 to Ø25.40
19t
25t
Ø28.58 to Ø44.45
32t
Ø50.80
25t
38t