Wiring Of Main Power Supply And Equipment Capacity - Mitsubishi Electric PUMY-P36NHMU3 Manuel D'installation

6. Electrical work
I M-NET Remote Controller
OC
H
(51)
TB3
TB7
M1 M2 S M1 M2 S
L
2
D
OC
(53)
TB7
L
6
TB3
M1 M2 S
M1 M2 S
H
Power Supply
Unit
M1 M2 S
System
controller
M1 M2 S
A : Group 1
B : Group 3
C : Group 5
D : Shielded Wire
E : Unshielded Wire
F : Main Remote Controller
G : Sub Remote Controller
H : Screw on the electrical
component box
( ): Address

6.4. Wiring of main power supply and equipment capacity

Schematic Drawing of Wiring (Example) (Fig. 6-4)
A
208/230 V AC
60 Hz
A : Switch (Breakers for Wiring and Current Leakage (if you use))
B : Outdoor Unit
C : Pull Box
D : Indoor Unit
Thickness of Wire for Main Power Supply and On/Off Capacities
Model
P36/48
Outdoor Unit HP36/48
P60
Indoor Unit
*1. Please follow applicable federal, state, or local codes to prevent potential leakage/electric shock. Or install a ground fault interrupt for the prevention of leakage and
electric shock.
IMPORTANT
en
If a current leakage breaker is used, it should be compatible with higher harmonics as this unit is equipped with an inverter. The use of an inadequate breaker
can cause the incorrect operation of inverter.
*2. Use copper supply wires. Use the electric wires over the rating voltage 300 V.
*3. Although the conduit size is larger than the size specified for the wire thickness according to UL standards, use a conduit size of 3/4 inch.
11
L
1
A
IC IC
(01) (02) (05)
TB5 TB5 TB5
M1 M2 S M1 M2 S M1 M2 S
A B A B
(101) (105)
RC RC
L L
3 4
IC IC
(03) (04) (07)
TB5 TB5 TB5
M1 M2 S M1 M2 S M1 M2 S
A B
(104)
RC
B
<Permissible Lengths>
• Max length via outdoor units: L
1
L +L +L +L 500 m [1640 ft] (1.25 mm
1 2 6 7
• Max transmission cable length: L
m [656 ft] (1.25 mm [AWG16] or more)
2
• Remote controller cable length:
ℓ ℓ ℓ
, + 10 m [33 ft] (0.5 to 1.25 mm
1 2 3
If the length exceeds 10 m [33 ft], use a 1.25 mm
shielded wire. The section of the cable that exceeds 10 m
[33 ft] must be included in the max length via outdoor units
and max transmission cable length.
Fig. 6-2
B
208/230 V AC
GR
60 Hz
Minimum Wire Thickness
(mm [AWG])
Power Supply 2
Main Cable*2
5.3 [AWG10] 5.3 [AWG10] 3/4 inch *3
208/230 V AC, 8.4 [AWG8] 8.4 [AWG8]
60 Hz 8.4 [AWG8] 8.4 [AWG8]
I MA Remote Controller
C
OC
H
IC IC (51)
(06)
TB3
TB5
M1 M2 S M1 M2 S
M1 M2 S
L
D
2
A B
(155)
RC
F G
OC
H
(53)
IC
TB3
M1 M2 S M1 M2 S
L
6
Power Supply
Unit
M1 M2 S
System
controller
M1 M2 S
+L +L +L , L +L +L +L and
2 3 4 3 4 6 7
[AWG16] or more)
2
, L +L , L +L and L 200
1 3 4 2 6 7
[AWG20 to AWG16])
2
[AWG16]
2
A
D
Fig. 6-4
Conduit Breaker for
Size Wiring*1
Ground
30 A
3/4 inch 40 A
3/4 inch 40 A
Refer to installation manual of indoor unit.
L
1
A
IC
m
2
(01)
TB7
TB5 TB5
TB15
M1 M2 S M1 M2 S
1 2
E
A B
MA
L
3
IC
(03)
TB7
TB5 TB15 TB5
M1 M2 S M1 M2 S
1 2
<Permissible Lengths>
• Max length via outdoor unit (M-NET cable): L
L +L +L +L and L +L +L +L 500 m [1640 ft] (1.25 mm
3 4 6 7 1 2 6 7
[AWG16] or more)
• Max transmission cable length (M-NET cable): L
and L 200 m [656 ft] (1.25 mm
7
• Remote controller cable length: m
m +m +m +m 200 m [656 ft] (0.3 to 1.25 mm
1 2 3 4
AWG16])
Fig. 6-3
C
D D
Breaker for Current Leakage Minimum cir-
(if you use) cuit ampacity
30 A 30 mA 0.1 sec. or less 29 A
40 A 30 mA 0.1 sec. or less 36 A
40 A 30 mA 0.1 sec. or less 36 A
C
IC IC IC
m
2
(02) (05) (06)
TB5 TB5
TB15 TB15 TB15
M1 M2 S M1 M2 S
1 2 1 2 1 2
A B A B
MA MA
L F G
4
E
IC IC
(04) (07)
TB15 TB5 TB15
M1 M2 S
1 2
1 2
A B
MA
B
+L +L +L ,
1 2 3 4
2
L +L L +L
1, 3 4, 2 6
[AWG16] or more)
2
, m +m +m and
1 1 2 3
[AWG20 to
2
D
Maximum rating of over
current protector device
44 A
44 A
45 A