Wiring Design; External Wiring Diagram - Mitsubishi Electric PFAV-P250VM-E Data Book

% ! ! ! . Wiring Design

1. External wiring diagram

(1)
Power supply examples
•
PUHY-P250YHM-A + PFAV-P300VM-E-F
<In the case a system controller is connected.>
IU
Power supply
3-phase 4-wire
380-400-415V 50/60Hz
Note10,13
TB2
GFI (L1,L2,L3,N)
LW
WB
TB15
(1,2)
MA R/C
MA R/C cable
2
0.3-1.25mm
2
(0.75~1.25mm )
<=200m
Note5, Note11 MA R/C
(two remote controllers)
Symbol
GFI Ground-fault interrupter
LW Local switch
BC Breaker capacity
OCP Over-current protector
WB Wiring breaker
NFB Non-fuse breaker
OU Outdoor unit
IU Indoor unit
SC System controller
MA R/C MA remote controller
Note12
SC
Connector
CN41 CN40
Note4
Indoor-outdoor
TB3
transmission cable
(M1,M2)
2
>=1.25mm
Note3
Shield cable
S(Shield)
TB5(M1,M2)
Connector
CN20
Thermistor cable
>=1.25mm 2
Shield cable
Thermistor
Model Ground-fault interrupter
*1, *2
PUHY-P250 30A 100mA 0.1sec. or less
*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.
Note:
Central control
1 The transmission cable is not-polarity double-wire.
transmission cable
2 Symbol
2
>=1.25mm
3 The shield wire of transmission cable should be connected to the grounding terminal at
Shield cable
(CVVS, CPEVS
MVVS)
4 When the Outdoor unit connected with system controller, power-supply to TB7 of the
To other OU
5 MA R/C transmission cable (0.3-1.25mm
Power supply
TB7
TB7
3-phase 4-wire
(M1,M2)
(S)
380-400-415V 50/60Hz
6 MA remote controller and ME remote controller should not be grouped together.
Note10,13
7 If using 1 or 2 (main/sub) MA remote controller to control more than 1 Indoor unit, use MA
TB1
(L1,L2,L3,N) LW GFI
WB
8 Indoor board consumes power from TB3. The power balance should be considered
OU
9 If Transmission booster is needed, be sure to connect the shield wires to the both sides
10 The critical current for choosing power source equipment is approximate
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
Local switch
BC
<A>
32
84
means a screw terminal for wiring.
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.
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-SC50KUA should be used. The transmission cable (above 1.25mm
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.
2
) must be less than 200m in length, while ME
2
R/C transmission cable (0.3-1.25mm ) 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
is counted in the M-Net length. Both Compact MA and ME R/C transmission cables size
2
0.75~1.25mm in thickness.
transmission cable to connect all the TB15 terminals of the Indoor units. It is called
"Grouping".
according to 3.M-NET control.
to the booster.
1.4 times of total rated current of the Outdoor unit(s) or Indoor unit(s).
phase-missing could break the controllers.
Minimum Wire thickness
Wiring breaker
OCP*3 (NFB) Power wire
<A>
<A> <mm
32 30
2
,
2
) when the length
Earth wire
2 2
> <mm >
4 4