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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
R410A flare tool R22/R407C flare tool
(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.)
Unit 12.7
Pipe 9.52
* photo model: PAC-493PI
Unit : mm (inch)
Onsite piping side
When flare processing for
B size (mm)
refrigerant R410A is applied
using current tool, refer to
Clutch type
the table above. B size can
0〜0.5
1.0〜1.5
be secured using copper
0〜0.5
1.0〜1.5
pipe gauge for margin
0〜0.5
1.0〜1.5
adjustment.
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)
6.35
9.52
12.70
15.88
MAC-A455JP-E
Descriptions
A part to connect the refrigerant pipes of the different diameter.
(Unit 12.7 → 9.52)
Applicable Models
MXZ-4A71VA
PAC-AK30BC
MXZ-4A80VA
PAC-AK50BC
MXZ-5A100VA
Specifications
Pipe diameter
12.7
C 1220T - OL
Pipe material
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.
Outer diameter of
Processing size of
copper pipe （ mm）
flare section (mm)
6.35
9.52
12.70
15.88
4 After refrigerant pipe is connected,
be sure to perform gas leakage
inspection for onsite connection
pipes (including this optional part)
Tightening torque N ・ m
and indoor/outdoor unit.
(kgf ・ cm)
5 Heat insulation is necessary for
14〜18 （ 140〜180）
this optional part: Wrap heat insulator
34〜42 （ 340〜420）
(locally procured) around the onsite
pipes and also the optional part
49〜61 （ 490〜610）
(for dewdrop dripping prevention).
68〜82 （ 680〜820）
6 Perform test run according to the
installation manual of the unit,
making sure to also perform ope-
ration check.
Flare shape
8.7〜9.1
45゜± 2゜
12.8〜13.2
16.2〜16.6
R0.4〜R0.8
19.3〜19.7
E-167
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