Mitsubishi Electric M Series Manual page 578
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- Installation manual (120 pages) ,
- Manual (92 pages) ,
- Service manual (46 pages)
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MULTI SYSTEM Inverter Heat Pump
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
MAC-A454JP
ø9.52
MAC-A455JP
ø12.7
MAC-A456JP
ø12.7
PAC-493PI
ø6.35
PAC-SG76RJ-E
ø9.52
PAC-AK50BC (5-branches type)
450
91
55
73
E
D
C
B
A
E
D
C
B
A
25
25
25
25
25
21
75
75
75
75
C-576
B
Diameter A
Diameter B
mm
mm
ø12.7
ø9.52
ø12.7
ø9.52
ø12.7
ø9.52
ø15.88
ø12.7
ø15.88
ø9.52
ø6.35
ø9.52
ø15.88
ø9.52
ø15.88
320
12
95
280
39
61
79
50 34
200
23
Fig. 4-2
3.1. Check the Branch Box accessories and parts
Accessory name
Washer (with insulation)
W
a
s
h
r e
For refrigerant piping joint
Accessory name
Pipe cover (Liquid)
P
p i
e
c
o
e v
( r
G
a
) s
Pipe cover (Liquid)
P
p i
e
c
o
e v
( r
G
a
) s
Joint cover (Liquid)
J
i o
t n
c
o
e v
( r
G
a
) s
B
a
n
d
For drain pipe
Accessory name
D
a r
n i
h
o
s
e
B
a
n
d
* 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.)
Suspension bolt pitch
To indoor unit
Flexible drain hose (Accessory)
Drain pipe connection (VP-16)
To outdoor unit
Service panel (for LEV, THERMISTOR)
3-WIRE BAND
Electric cover
3-electric wire inlet
Terminal block (to indoor unit)
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-AK50BC (Fig. 4-2)
(mm)
Suspension bolt: W3/8 (M10)
Refrigerant pipe flared connection
A
B
Liquid pipe
ø6.35
ø6.35
Gas pipe
ø9.52
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
M series
Q'ty
4
4
Q'ty
1
TO OUTDOOR UNIT
1
T
O
O
U
T
D
O
O
R
5
TO INDOOR UNITS
5
T
O
N I
D
O
O
R
U
3
3
2
4
Q'ty
1
2
C
D
E
To outdoor unit
ø6.35
ø6.35
ø6.35
ø9.52
ø9.52
ø9.52
ø12.7
ø15.88
U
N
T I
N
T I
S
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