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How to Use / How to Install
Make sure that you have all the following parts.
Filter dryer
1
2
With PAC-SG81DR-E (forø6.35)
or PAC-SG82DR-E (forø9.52)
×1
Installation Procedures (carefully read the following before installing)
Cautions
1) This optional part is used to remove moisture inside the refrigerant pipe and prevent fault of compressor. However,
if there is excessive contamination inside the refrigerant cycle, such as a large amount of mixed moisture, etc., the
dryer must be replaced after it is used during one season (the amount of allowable moisture absorption: 3-7 cc).
2) Install the filter dryer to refrigerant pipe midway on liquid side, using flare connection.
3) The filter dryer can be attached outside the unit. It can also be attached to the inside of unit only if the space for
installation can be secured
1 Preparations for Installation
i)
Refer to the installation manual of outdoor unit for the procedures of
removing outdoor unit panel, refrigerant piping, vacuuming, etc.
ii)
Removing panel
• Remove the service panel and cover.
iii) Connecting pipes
• When bending pipe, allow enough bending R (R100-150), and
take care that the pipe is not folded.
• Lay out the pipe so that it does not come into contact with the compressor.
(Being in contact could cause abnormal sound or vibrations.)
• Apply flare processing to the connection pipe procured at local site.
• Thinly coat the flare sheet surface with refrigerant oil
(procured at local site).
Processing size of
Outer diameter of
copper pipe (mm)
flare portion øA (mm)
ø6.35
8.7 - 9.1
ø9.52
12.8 - 13.2
ø12.7
16.2 - 16.6
2 Installing Filter Dryer
i)
When installing the filter dryer inside the unit, refer to Fig. 1 or Fig. 2 according to the space in unit and install it.
If there is no space for the dryer to be installed in unit, install it outside the unit (see Fig. 3).
Indoor unit
[Fig1]
Filter dryer attachment diagram
(installing in unit)
With PAC-SG81DR-E or PAC-SG82DR-E
Valve (liquid side)
2Connection pipe
1Filter dryer
3Heat insulator
Filter Dryer for Liquid Pipe of 12.7 PAC-SG85DR-E
Connection pipe
or
×1
Refrigerant oil coating point
Flare shape
Coat the entire circumference of
45゜± 2゜
sheet surface with refrigerant oil.
R0.4～R0.8
Be sure to attach the filter dryer on the liquid pipe (narrower one)
Install the filter dryer
inside or outside the unit.
Liquid pipe
Gas pipe
Valve (liquid side)
2Connection pipe
1Filter dryer
3Heat insulator
Heat insulator
3
With PAC-SG85DR-E
(forø12.7)
×1
B
Pipe
R410A flare tool
diameter
(mm)
ø6.35(1/4")
Dies
ø9.52
(
3/8
")
Copper tube
ø12.7
1/2
(
")
※Use the above table as a reference when processing the flare for refrigerant
R410A using the conventional tool. Dimension B can be secured when using
a copper pipe gauge for outgoing margin adjustment.
〈Appropriate tightening force with torque wrench〉
Outer diameter of
copper pipe (mm)
ø6.35
ø9.52
ø12.7
Outdoor
unit
With PAC-SG85DR-E
Adjust the pipe attachment
orientation, taking care with
the position of knockout hole
in the bottom of outdoor unit.
×1
Dimension B (mm)
R22/R407C flare tool
Clutch type
0 - 0.5
1.0 - 1.5
0 - 0.5
1.0 - 1.5
0 - 0.5
1.0 - 1.5
Tightening force N.m
(kgf-cm)
14 - 18（140 - 180）
34 - 42（340 - 420）
49 - 61（490 - 610）
E-243
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