Confirming Supplied Accessories; Dimensions And Required Servicing Space Of Branch Box - Mitsubishi Electric PAC-AK50BC Manuel D'installation

3. Confirming Supplied Accessories

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
mm
→ ø12.7
MAC-A454JP ø9.52
→ ø9.52
MAC-A455JP ø12.7
→ ø15.88
MAC-A456JP ø12.7
→ ø9.52
PAC-493PI ø6.35
→ ø15.88
PAC-SG76RJ-E ø9.52
I PAC-AK50BC (5-branches type)
450
55
B
E D C B A
E D C B A
25 25 25 25 25 21
75 75 75 75
B
Diameter A Diameter B
mm mm
ø9.52 ø12.7
ø12.7 ø9.52
ø12.7 ø15.88
ø6.35 ø9.52
ø9.52 ø15.88
A
320
12
91 95 280 39
73 61 79 50 34
G
E
200
H
F
23
C
D
Fig. 4-2
3.1. Check the Branch Box accessories and parts
Accessory name
1 Washer (with insulation)
2 Washer
For refrigerant piping joint
Accessory name
3
Pipe cover (Liquid)
4 Pipe cover (Gas)
5 Pipe cover (Liquid)
6
Pipe cover (Gas)
7 Joint cover (Liquid)
8 Joint cover (Gas)
9
Band
For drain pipe
Accessory name
0 Drain hose
A Band
* Please connect two indoor units or more with one system.
* 1-2 branch boxes may be connected to one outdoor unit.
* Suspension bolt : W3/8(M10)
* Refrigerant pipe flared connection
* The piping connection size differs according to the type and capacity of in-
door units. Match the piping connection size for indoor unit and branch box.
If the piping connection size of branch box does not match the piping con-
nection size of indoor unit, use optional different-diameter (deformed) 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 (VP-16)
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.
I PAC-AK50BC (Fig. 4-2)
(mm)
Suspension bolt: W3/8 (M10)
Refrigerant pipe flared connection
A
Liquid pipe ø6.35
Gas pipe ø9.52
Drain hose size: O.D.20 (VP16)
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
I
J
K
Q'ty
4
4
Q'ty
1 TO OUTDOOR UNIT
1 TO OUTDOOR UNIT
5 TO INDOOR UNITS
5 TO INDOOR UNITS
3
3
24
Q'ty
1
2
B C D E
ø6.35 ø6.35 ø6.35 ø6.35
ø9.52 ø9.52 ø9.52 ø12.7
To outdoor unit
ø9.52
ø15.88
3