Mitsubishi Electric PUMY-SP112, Руководство по установке

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9
GB
A A
A
B B B B B
L
Selecting pipe size (Fig. 4-3)
A B
Liquid (mm) ø9.52
The piping connection size differs according to the type
and capacity of indoor units. Match the piping connec-
tion size of branch box with indoor unit.
If the piping connection size of branch box does not
match the piping connection size of indoor unit, use
optional different-diameter (deformed) joints to the
branch box side. (Connect deformed joint directly to
the branch box side.)
Gas (mm) ø15.88
L: The farthest piping length for the main pipes from the outdoor unit to the branch
box.
Different-diameter joint (optional parts) (Fig. 4-4)
Model name
Connected pipes diameter Diameter A Diameter B
mm mm mm
MAC-A454JP ø9.52 → ø12.7 ø9.52 ø12.7
MAC-A455JP ø12.7 → ø9.52 ø12.7 ø9.52
MAC-A456JP ø12.7 → ø15.88 ø12.7 ø15.88
PAC-493PI ø6.35 → ø9.52 ø6.35 ø9.52
PAC-SG76RJ-E ø9.52 → ø15.88 ø9.52 ø15.88
Different-diameter joint (optional parts) (Fig. 4-5)
Model name
Connected pipes diameter
Outside
Diameter A
Inside
Diameter B
mm mm mm
PAC-SG78RJB-E
ø9.52 → ø12.7
ø9.52 ø12.7
PAC-SG79RJB-E
ø12.7 → ø9.52
ø12.7 ø9.52
PAC-SG80RJB-E
ø12.7 → ø15.88
ø12.7 ø15.88
PAC-SG77RJB-E
ø6.35 → ø9.52
ø6.35 ø9.52
PAC-SG76RJB-E
ø9.52 → ø15.88
ø9.52 ø15.88
2-branches pipe (Joint) : Optional parts (According to the connection method,
you can choose the favorite one.)
Model name Connection method
MSDD-50AR-E flare
MSDD-50BR-E brazing
■
Installation procedure (2 branches pipe (Joint))
Refer to the installation manuals of MSDD-50AR-E.
■
Pipe size (Outdoor unit-Branch box)
Pipe size
(ømm)
Liquid ø9.52
Gas ø15.88
The lineup of a connectable indoor unit depends on a district/areas/
country.
■
Branch box
Model name Number of connected units
PAC-MK3
✽
BC(B) 3-branches (Max. 3 units)
PAC-MK5
✽
BC(B) 5-branches (Max. 5 units)
Note:
✽
= 0, 1, 2, ....
The PAC-MK31/32BC(B) and PAC-MK51/52BC(B) cannot be connected.
■
Pipe size (Branch box–Indoor unit) Case of M series or S series indoor unit
Indoor
unit type
(kW) 15 – 42 50 60 71 – 80
Pipe size
(ømm)
Liquid ø6.35 ø6.35 ø9.52
Gas ø9.52 ø12.7 ø15.88 ø15.88
* If the pipe size of indoor unit is different, use a different-diameter joint.
■
Pipe size (Branch box–Indoor unit) Case of P series indoor unit
Indoor
unit type
(kW) 35 – 50 60 – 100
Pipe size
(ømm)
Liquid ø6.35 ø9.52
Gas ø12.7 ø15.88
*1 The lineup of a connectable indoor unit depends on a district/areas/
country.
*2 When using 35, 50 type indoor unit of P series, use the flare nut attached
to the indoor unit.
Do not use the flare nut in the indoor unit accessory. If it is used, a gas
leakage or even a pipe extraction may occur.
(1) Valve size for outdoor unit
For liquid ø9.52 mm
For gas ø15.88 mm
(2) Valve size for branch box
A
UNIT
Liquid pipe ø6.35 mm
Gas pipe ø9.52 mm
B
UNIT
Liquid pipe ø6.35 mm
Gas pipe ø9.52 mm
C
UNIT
Liquid pipe ø6.35 mm
Gas pipe ø9.52 mm
D
UNIT
Liquid pipe ø6.35 mm
Gas pipe ø9.52 mm
E
UNIT
Liquid pipe ø6.35 mm
Gas pipe ø12.7 mm
* 3-branch type : only
A
,
B
,
C
unit
B
A
Fig. 4-4
Fig. 4-3
A
B B B B B
L
Branch box (PAC-MK ∙ BC(B))
■
In case of using 1-branch box
Flare connection employed. (No. brazing)
■
In case of using 2-branch boxes
Branch box #1 (PAC-MK∙BC(B))
2 branches pipe (joint) (MSDD)
: optional parts.
Branch box #2 (PAC-MK∙BC(B))
Conversion formula
1/4 F ø6.35
3/8 F ø9.52
1/2 F ø12.7
5/8 F ø15.88
3/4 F ø19.05
4. Installing the refrigerant piping
Fig. 4-5
A (outside) B (inside)
RG79Y968H01.indb 9 12/28/2017 11:24:53 AM