14
Installation Procedure
English
Instal
lation Pr
oc
edur
e
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
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
←
Internal temperature
is higher than 120°C
Ø12.7 to Ø50.80
13t
←
Gas pipe
Ø6.35
13t
19t
Ø9.52 to Ø25.40
19t
25t
Ø28.58 to Ø44.45
32t
Ø50.80
25t
38t
•
When installing insulation in the places and conditions
below, use the same insulation that is used for high
humidity conditions.
<Geological condition>
High humidity locations such as shorelines, hot springs,
lake or riversides, and ridges (when part of the building is
covered by earth and sand)
<Operation purpose condition>
Restaurant ceiling, sauna, swimming pool etc.
<Building construction condition>
Ceilings frequently exposed to moisture and cooling are
not covered. For example, pipes installed at a corridor of a
dormitory and studio or near an exit that opens and closes
frequently.
Places (where the pipes are installed) that are highly
humid due to a lack of ventilation.
•
Refrigerant pipe before EEV kit and MCU or without
EEV kit and MCU
– You can contact the gas side and liquid side pipes
but the pipes should not be pressed.
– When contacting the gas side and liquid side pipe,
use 1 grade thicker insulator.
•
Refrigerant pipe after EEV kit and MCU
– Install the gas side and liquid side pipes, leave
10mm of space.
– When contacting the gas side and liquid side pipe,
use 1 grade thicker insulator.
DVM TK Wind-Free 1way IM EN_DB68-07553A-00.indb 14
2017-12-01 오후 2:19:02
