Specifications

85
*1 The Ground-fault interrupter should support Inverter circuit. (e.g. Mitsubishi Electric's NV-C series or equivalent).
*2 Ground-fault interrupter should combine using of local switch or wiring breaker.
*3 It shows data for B-type fuse of the breaker for current leakage.
Local switch Minimum Wire thickness
Earth wire
<mm
2
>
Power wire
<mm
2
>
Wiring breaker
(NFB)
<A>
OCP*3
<A>
BC
<A>
Ground-fault interrupter
*1, *2
ModelSymbol
GFI
LW
BC
OCP
WB
NFB
OU
IU
SC
MA R/C
Ground-fault interrupter
Local switch
Breaker capacity
Over-current protector
Wiring breaker
Non-fuse breaker
Outdoor unit
Indoor unit
System controller
MA remote controller
PUHY-P250 30A 100mA 0.1sec. or less 32 32 30 4 4
Note:
1 The transmission cable is not-polarity double-wire.
2 Symbol means a screw terminal for wiring.
3 The shield wire of transmission cable should be connected to the grounding terminal at
Outdoor unit. All shield wire of M-Net transmission cable among Indoor units should be
connected to the S terminal at Indoor unit or all shield wire should be connected together.
The broken line at the scheme means shield wire.
4 When the Outdoor unit connected with system controller, power-supply to TB7 of the
outdoor unit(s) is needed. The connector change from CN41 to CN40 at one of the
outdoor units will enable the outdoor unit to supply power to TB7, or an extra power
supplying unit PAC-SC51KUA should be used. The transmission cable (above 1.25mm
2
,
shielded, CVVS/CPEVS/MVVS) among Outdoor units and system controllers is called
central control transmission cable. The shield wire of the central control transmission
cable must be grounded at the Outdoor unit whose CN41 is changed to CN40.
5 MA R/C transmission cable (0.3-1.25mm
2
) must be less than 200m in length, while ME
R/C transmission cable (0.3-1.25mm
2
) must be less than 10m in length. But transmission
cable to the ME R/C can be extend using a M-NET cable (>=1.25mm
2
) when the length
is counted in the M-Net length. Both Compact MA and ME R/C transmission cables size
0.75~1.25mm
2
in thickness.
6 MA remote controller and ME remote controller should not be grouped together.
7 If using 1 or 2 (main/sub) MA remote controller to control more than 1 Indoor unit, use MA
transmission cable to connect all the TB15 terminals of the Indoor units. It is called
"Grouping".
8 Indoor board consumes power from TB3. The power balance should be considered
according to 3.M-NET control.
9 If Transmission booster is needed, be sure to connect the shield wires to the both sides
to the booster.
10 The critical current for choosing power source equipment is approximate
1.4 times of total rated current of the Outdoor unit(s) or Indoor unit(s).
11 Numbers shown with ( ) indicates a diameter of the compact remote controller.
12 When System controller (SC) is connected to the system, turn the SW2-1 on.
13 The phases of electricity power must be confirmed to be right used. Phase-reverse, or
phase-missing could break the controllers.
GFILW
WB
LW
WB
GFI
CN41 CN40
TB1
Thermistor
Thermistor cable
>=1.25mm
2
Shield cable
Connector
CN20
MA R/C
MA R/C
(two remote controllers)
To other OU
OU
TB15
(1,2)
TB5(M1,M2)
TB2
(L1,L2,L3,N)
TB3
(M1,M2)
(L1,L2,L3,N)
S(Shield)
TB7
(M1,M2)
TB7
(S)
Note4
IU
Note3
Central control
transmission cable
>=1.25mm
2
Shield cable
(CVVS, CPEVS
MVVS)
<In the case a system controller is connected.>
SC
Note12
Power supply
3-phase 4-wire
380-400-415V 50/60Hz
Note10,13
Power supply
3-phase 4-wire
380-400-415V 50/60Hz
Note10,13
Indoor-outdoor
transmission cable
>=1.25mm
2
Shield cable
MA R/C cable
0.3-1.25mm
2
(0.75~1.25mm )
2
<=200m
Note5, Note11
Connector
•PUHY-P250YHA + PFAV-P300VM-E-F
(1) Power supply examples
%!!!. Wiring Design
1. External wiring diagram