Confirming Supplied Accessories; Dimensions And Required Servicing Space Of Branch Box - Mitsubishi Electric PAC-AKA51BC Manuel D'installation

3. Confirming supplied accessories

: Type A
: Type B
Fig. 3-1

4. Dimensions and required servicing space of Branch Box

Optional different (deformed) joints
A
Fig. 4-1
Connected pipes diameter
Model name
inch, mm
MAC-A454JP 3/8, ø9.52 → 1/2, ø12.7
MAC-A455JP 1/2, ø12.7 → 3/8, ø9.52
MAC-A456JP 1/2, ø12.7 → 5/8, ø15.88
PAC-493PI 1/4, ø6.35 → 3/8, ø9.52
PAC-SG76RJ-E 3/8, ø9.52 → 5/8, ø15.88
PAC-AKA51BC (5-branches type)
17 - 11/16 3 - 9/16
2 - 3/16 2 - 7/8
A
E D C B
E D C B A
13/16
1 1 1 1 1
3 3 3 3
Type A
7 - 7/8
Type B
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B
Diameter A Diameter B
inch, mm inch, mm
3/8, ø9.5 1/, ø1.7
1/, ø1.7 3/8, ø9.5
1/, ø1.7 5/8, ø15.88
1/4, ø6.35 3/8, ø9.5
3/8, ø9.5 5/8, ø15.88
(inch)
12 - 9/16
1/2
3 - 3/4 1 - 1/2
11
2 - 3/8 3 - 1/8 2 1 - 3/8
7 - 7/8
15/16
Fig. 4-2
3.1. Check the Branch Box accessories and parts
Accessory name
Washer (with insulation)
1
Washer
2
For refrigerant piping joint
Accessory name
Pipe cover (Liquid)
3
Pipe cover (Gas)
4
Pipe cover (Liquid)
5
Pipe cover (Gas)
6
Joint cover (Liquid)
7
Joint cover (Gas)
8
Band
9
For drain pipe
Accessory name
Drain hose
0
Band
1
For conduit
Accessory name
Conduit plate
2
* Please connect  indoor units or more with 1 system.
* 1- branch boxes may be connected to 1 outdoor unit.
* Suspension bolt : W3/8 (M10)
* Refrigerant pipe flared 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 Flexible drain hose (Accessory)
D Drain pipe connection (O.D.13/16 inch)
E To outdoor unit
F Service panel (for LEV, THERMISTOR)
G 3-WIRE BAND
H Electric cover
I 3-electric wire inlet
J Terminal block (to indoor unit)
K Terminal block (to outdoor unit)
* Ensure that the branch box is installed as shown on the below drawing. Leg must
be located on top. Otherwise drainage will not be properly performed.
PAC-AKA51BC (Fig.4-2)
Suspension bolt: W3/8 (M10)
Refrigerant pipe flared connection
A B
Liquid pipe 1/4, ø6.35 1/4, ø6.35 1/4, ø6.35 1/4, ø6.35 1/4, ø6.35
Gas pipe 3/8, ø9.5 3/8, ø9.5 3/8, ø9.5 3/8, ø9.5 1/, ø1.7
Drain hose size : O.D. 0 mm, 13/16 inch (VP16)
Conversion formula
Q'ty
4
4
Q'ty
1 TO OUTDOOR UNIT
1 TO OUTDOOR UNIT
5 TO INDOOR UNITS
5 TO INDOOR UNITS
3
3
4
Q'ty
1 Type A or Type B

Q'ty
Attached on the product
1
with a tape when shipped
inch, mm
C D E To outdoor unit
3/8, ø9.5
5/8, ø15.88
1/4 F ø6.35
3/8 F ø9.5
1/ F ø1.7
5/8 F ø15.88
3/4 F ø19.05
3