Adhesive insulation tape
Insulating the pipe
Insulating
header joint
Insulating after brazing the cap
Adhesive insulation tape
Insulator
Header joint
Cover the connected part and fasten the header joint using a cable tie.
Insulate the header joint and the brazed part and wrap the connected
part with an adhesive insulation tape to prevent it from dewing.
Installing the Header joint
1. Select the reducer fitted on the diameter of the pipe.
Reducer
Pipe
To indoor unit
Pipe
<Liquid side>
To outdoor unit
Brazed part
Provided
Reducer
Pipe
To indoor unit
Pipe
<Gas side>
To outdoor unit
Note
Connect the Outdoor joint to the pipe by cutting the outlet of the Outdoor joint or provided reducer properly.
10~15mm or more
±10°
or less
The
horizon
Reducer Header joint
Pipe
3. Install the header joint horizontally.
±15°
or less
The horizon
±10°
or less
The horizon
<Liquid side>
±15°
or less
The
horizon
The horizon
<Gas side>
The horizon
Installation of outdoor joints
Do not install the outdoor
joint in this direction.
Liquid pipe
High pressure
gas pipe
Gas pipe
Connecting Method
Installing the Y-joint
Insulating the branch joint
Y-joint & liquid side & gas side of the outdoor unit
Attach the insulation provided with a branch joint to the insulation supplied in the field
without a gap. Wrap the connected part with an insulation (Field supply) of a thickness of at
least 10mm.
Use an insulation with the heat resisting temperature over 120°C.
Wrap the branch joint with an insulation of a thickness of at least 10mm.
When insulating in high humidity(higher than 30°C, 80%), wrap the supplied insulation with
more than 10mm of extra insulation such as Polyethylene Foam or other similar material.
Wrap the connected part between the Outdoor joint and the gas side of the outdoor unit to
prevent it from defrosting. Wrap gas side pipe of the outdoor unit wholly to prevent it from
dewing.
Attach the adhesive insulation tape to the pipe
as shown in the picture after insulating the pipe.
Insulation tape
(Field supply)
Pipe insulation
(Field supply)
Pipe
Fix securely without any gap.
Pipe insulation
Provided
Fix securely
without any gap.
Pipe insulation
(Field supply)
Pipe insulation
(Field supply)
150mm
Branch
joint
A thickness of the insulation (Field supply)
should be at least 10mm.
(Field supply)
2. Block the reducer that is not used by brazing the cap if the number of connected indoor
unit is fewer than header joint holes.
Blocked the hole of
header joint
In order
<Gas side>
<Liquid side>
Blocked the hole of
header joint
In order
Provided
Brazed part
Note
Connect the header joint to the pipe by cutting the provided reducer properly.
10~15mm
or more
Connect the header joint in order respecting the number of the indoor unit.
Connet the indoor unit as the highest capacity comes first.
<Install vertically>
<Using reducer>
- Use connection part of Y-joint or provided
reducer by cutting them in accordance with
diameter of connecting pipe.
- Make certain 10~15mm or more for reducer
which connected with pipe.
- Remove burr on cut part of reducer.
It is impossible to connect reducer with pipe,
if pipe is deformed or reducer is untrimmed.
10~15mm
or more
Keep a minimum distance of 500mm or more before
connecting a branch joint.
<Install horizontally>
Maintain ±15° on
the horizon
Install the Y-joint within ±15° on
the horizon or on the vertical.
500mm
or more
Main pipe
To outdoor unit
Pipe
Front
Rear
Rear
Pipe
Reducer
To other branch
joints or indoor unit
Reducer
Do not insert the pipe deeply into the Y-joint.
( Do not insert more than 70mm.)
<Insertion depth of the connecting pipe>
Connecting pipe
Connecting pipe
Basic specification
When cutting the connection part
<Gas side>
Use the attached reducer according to the selected pipe size.
Pipe
Reducer
Reducer
Pipe
To other outdoor unit
To other outdoor joint or Y-joint of the main pipe
To other outdoor joint or outdoor unit
Install the Y-joint ‘horizontally’ or ‘vertically’.
Installing the Outdoor joint
<Liquid side>
Use the attached reducer according to the selected pipe size.
Pipe
Reducer
Pipe
To other outdoor unit
To other outdoor joint or Y-joint of the main pipe
To other outdoor joint or outdoor unit
Use the attached reducer according to the selected pipe size.
Pipe
Reducer
Reducer
Pipe
To other outdoor unit
To other outdoor joint or Y-joint of the main pipe
<High pressure gas side>
To other outdoor joint or outdoor unit
High pressure gas pipe only applies to the HR product.
Reducer
DVM OPTION-MXJ_IM_03340A-05_EN.indd 2
2015-06-12 오후 4:06:26
