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Joint Pipe
Photo
Dimensions
How to Use / How to Install
Make sure that you have all the following parts, in addition to this manual in this box:
Joint Pipe
PAC-SG76RJ-E (unit side: 9.52 diameter, onsite pipe side: 15.88 diameter)
PAC-493PI (unit side: 6.32 diameter, onsite pipe side: 9.52 diameter)
MAC-A454JP-E (unit side: 9.52 diameter, onsite pipe side: 12.7 diameter)
MAC-A455JP-E (unit side: 12.7 diameter, onsite pipe side: 9.52 diameter)
MAC-A456JP-E (unit side: 12.7 diameter, onsite pipe side: 15.88 diameter)
Unit side
Apply flare processing to onsite pipes to adapt to R410A, according to the table on the right.Use optional accessory flare nut at this time.
Check the installation manual attached to the outdoor unit for advisability on whether or not onsite (existing) pipes can be used.
B
Pipe diameter
(mm)
6.35 1/4
9.52 3/8
dies
12.70 1/2
Copper pipe
15.88 5/8
2 Remove caps (both ends) for protection against
mixing of foreign materials from optional part,
and thinly apply refrigerat or oil
(locally procured) on flare surface.
Refrigerator oil application point
Apply refrigerator oil to entire circumference of
flare sheet surface.
Do not apply to thread section.
(If applied to threads, flare nut can easily
be loosened.)
E-166
Unit 9.52
Pipe 12.7
* photo model: PAC-493PI
Unit : mm (inch)
Onsite piping side
B size (mm)
R410A flare tool 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
0〜0.5
1.0〜1.5
3 Securely tighten flare nut using torque
wrench according to the table on the right.
〈Proper tightening torque using torque wrench〉
Outer diameter of
copper pipe (mm)
12.70
15.88
Descriptions
A part to connect refrigerant pipes of the different diameter.
(Unit 9.52 → 12.7)
Applicable Models
MXZ-3A54VA
MXZ-4A71VA
MXZ-4A80VA
Specifications
9.52
Pipe diameter
Pipe material
C 1220T - OL
Installation procedure
(carefully read the following before installing.)
This optional part is used to connect indoor/outdoor unit to
onsite pipes of different diameters.
When installing this optional part, be sure to read
Refrigerant pipe connection in the installation manual
attached to outdoor unit.
When flare processing for
Outer diameter of
refrigerant R410A is applied
copper pipe （ mm）
using current tool, refer to
6.35
the table above. B size can
9.52
be secured using copper
pipe gauge for margin
12.70
15.88
adjustment.
Tightening torque N ・ m
(kgf ・ cm)
14〜18 （ 140〜180）
6.35
34〜42 （ 340〜420）
9.52
49〜61 （ 490〜610）
68〜82 （ 680〜820）
MAC-A454JP-E
MXZ-5A100VA
PAC-AK50BC
MXZ-8A140VA
PAC-AK30BC
Processing size of
Flare shape
flare section (mm)
8.7〜9.1
45゜± 2゜
12.8〜13.2
16.2〜16.6
R0.4〜R0.8
19.3〜19.7
4 After refrigerant pipe is connected,
be sure to perform gas leakage
inspection for onsite connection
pipes (including this optional part)
and indoor/outdoor unit.
5 Heat insulation is necessary for
this optional part: Wrap heat insulator
(locally procured) around the onsite
pipes and also the optional part
(for dewdrop dripping prevention).
6 Perform test run according to the
installation manual of the unit,
making sure to also perform ope-
ration check.
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