3
3. Con
¿
rming supplied accessories
4. Dimensions and required servicing space of Branch Box
PAC-MKA50BC (5-branches type)
(inch)
3.1. Check the Branch Box accessories and parts
Accessory name
Q’ty
PAC-
MKA30BC
PAC-
MKA50BC
1
Washer
(with insulation)
4
4
2
Washer
4
4
3
Pipe cover (Liquid)
1
1
TO OUTDOOR UNIT
4
Pipe cover (Gas)
1
1
TO OUTDOOR UNIT
5
Pipe cover (Liquid)
3
5
TO INDOOR UNITS
6
Pipe cover (Gas)
3
5
TO INDOOR UNITS
7
Joint cover (Liquid)
1
3
8
Joint cover (Gas)
1
3
9
Band
16
24
0
Conduit plate
1
1
Fastened to the main body
and shipped.
Fig. 3-1
2
9
8
5
6
4
3 7 1
B
A
Optional different-diameter (deformed) joints
Fig. 4-1
* Please connect 2 indoor units or more with 1 system.
* Up to 2 branch boxes may be connected to 1 outdoor unit.
* Suspension bolt : W3/8 (M10)
* Refrigerant pipe
À
ared connection
* The piping connection size differs according to the type and capacity of
indoor units. Match the piping connection size for indoor unit and branch
box. If the piping connection size of branch box does not match the pip-
ing connection size of indoor unit, use optional different-diameter (de-
formed) joints to the branch box side. (Connect deformed joint directly to
the branch box side.)
A
Suspension bolt pitch
B
To indoor unit
C
To outdoor unit
D
Service panel (for LEV, THERMISTOR)
E
Electric cover
F
Conduit plate
G
Terminal block (to indoor unit on control board)
H
Terminal block (to outdoor unit)
J
Terminal block (for comunication cable)
* Ensure that the branch box is installed as shown on the below drawing.
PAC-MKA50BC (Fig.4-2)
Suspension bolt: W3/8 (M10)
Refrigerant pipe
À
ared connection
A
B
C
D
E
To outdoor unit
Liquid pipe 1/4, ø6.35 1/4, ø6.35 1/4, ø6.35 1/4, ø6.35 1/4, ø6.35
3/8, ø9.52
Gas pipe
3/8, ø9.52 3/8, ø9.52 3/8, ø9.52 3/8, ø9.52 1/2, ø12.7
5/8, ø15.88
Model name
Connected pipes diameter
Diameter A
Diameter B
inch, mm
inch, mm
inch, mm
MAC-A454JP
3/8, ø9.52
ĺ
1/2, ø12.7
3/8, ø9.52
1/2, ø12.7
MAC-A455JP
1/2, ø12.7
ĺ
3/8, ø9.52
1/2, ø12.7
3/8, ø9.52
MAC-A456JP
1/2, ø12.7
ĺ
5/8, ø15.88
1/2, ø12.7
5/8, ø15.88
PAC-493PI
1/4, ø6.35
ĺ
3/8, ø9.52
1/4, ø6.35
3/8, ø9.52
PAC-SG76RJ-E
3/8, ø9.52
ĺ
5/8, ø15.88
3/8, ø9.52
5/8, ø15.88
inch, mm
D
C
E
F
H
G
J
A
B
A
E
D
C
B
A
E
D
C
B
A
Fig. 4-2
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
