Wiring Of Main Power Supply And Equipment Capacity - Mitsubishi PUMY-P36NKMU1 Installation Manual

6. Electrical work
■ M-NET Remote Controller
OC
F
(51)
TB3
TB7
M1 M2 S M1 M2 S
c or D
L
2
D
L
3
OC
(53)
c or D
TB7
L
6
TB3
M1 M2 S
M1 M2 S
F
Power Supply
Unit
M1 M2 S
DC24V
System
controller
M1 M2 S
A : Group 1
B : Group 3
C : Group 5
D : Shielded Wire
E : Sub Remote Controller
( ): Address

6.4. Wiring of main power supply and equipment capacity

Schematic Drawing of Wiring (Example) (Fig. 6-4)
A
B
208/230 VAC
60 Hz
A : Switch (Breakers for Wiring and Current Leakage)
B : Outdoor Unit
C : Pull Box
D : Indoor Unit
Thickness of Wire for Main Power Supply and On/Off Capacities
Model
Outdoor Unit P36/48
Indoor Unit
*1. A breaker with at least 3.0 mm [1/8 inch] contact separation in each poles shall be provided. Use non-fuse breaker (NF) or earth leakage breaker (NV).
*2. Use copper supply wires. Use the electric wires over the rating voltage 300 V.
Total operating current of the indoor unit
F0 = 15 A or less *2
F0 = 20 A or less *2
F0 = 30 A or less *2
Apply to IEC61000-3-3 about max. permissive system impedance.
*1 The Ground-fault interrupter should support inverter circuit.
The Ground-fault interrupter should combine using of local switch or wiring breaker.
*2 Please take the larger of F1 or F2 as the value for F0.
F1 = Total operating maximum current of the indoor units × 1.2
F2 = {V1 × (Quantity of Type1)/C} + {V1 × (Quantity of Type2)/C} + {V1 × (Quantity of Type3)/C} + {V1 × (Quantity of Others)/C}
12
L
1
A C
IC IC IC
(01) (02) (05)
TB5 TB5 TB5
M1 M2 S M1 M2 S M1 M2 S
r
3
A B A B A B
(101) (105) (155)
RC RC RC
L
E
4
IC IC IC
(03) (04) (07)
TB5 TB5 TB5
M1 M2 S M1 M2 S M1 M2 S
A B
(104)
RC
B
Fig. 6-2
208/230 VAC
GR
60 Hz
Minimum Wire Thickness
Power Supply
Main Cable*2
208/230 VAC, 60 Hz 8.4 [AWG8]
208/230 VAC, 60 Hz
Minimum wire thickness (mm
Main Cable Branch
2.1/14 2.1/14
3.3/12 3.3/12
5.5/10 5.5/10
■ MA Remote Controller
OC
F
IC (51)
(06)
TB3 TB7
TB5
M1 M2 S M1 M2 S
M1 M2 S
L
D
2
OC
F
(53)
TB7
TB3
M1 M2 S M1 M2 S
L
6
Power Supply
Unit
M1 M2 S
DC24V
System
controller
M1 M2 S
A
D D
Fig. 6-4
Breaker for
(mm [AWG])
2
Wiring*1
Ground
8.4 [AWG8] 40 A
Refer to installation manual of indoor unit.
/AWG)
2
Ground-fault interruper *1
Ground
2.1/14 15 A current sensitivity *3
3.3/12 20 A current sensitivity *3
5.3/10 30 A current sensitivity *3
L
1
A
IC IC
m
2
(01) (02)
TB5 TB5
TB15 TB15
c or D M1 M2 S M1 M2 S
1 2 1 2
A B
MA
L L
3 4
IC
IC
(03) (04)
c or D
TB5 TB15 TB5 TB15
M1 M2 S M1 M2 S
1 2
1 2
A B
MA
B
Fig. 6-3
C
D D
Breaker for Current Minimum cir-
Leakage cuit ampacity
40 A 30 mA 0.1 sec.
31 A
or less
Local switch (A)
Capacity Fuse
15 15
20 20
30 30
C
IC IC
m
2
(05) (06)
TB5 TB5
TB15 TB15
M1 M2 S M1 M2 S
1 2 1 2
m
4
A B A B
MA MA
E
IC
(07)
TB5 TB15
M1 M2 S
1 2
Maximum rating of
over current protec-
tor device
44 A
Breaker for wiring
(NFB)
15
20
30