Mitsubishi Electric PEFY-P15VMS1-E [11/21] Power supply wiring

Mitsubishi Electric PEFY-P63VMS1-E [11/21] Power supply wiring

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Caution:

Install wiring so that it is not tight and under tension. Wiring under tension

may break, or overheat and burn.

9.3. Connecting electrical connections

Please identify the model name of the operation manual attached on the terminal

bed box cover with that shown on the rating name plate.

1. Remove the screw (2pcs) holding the cover to dismount the cover.

[Fig. 9.3.1] (P.5)

A Screw holding cover (2pcs) B Cover

2. Open knockout holes

(Recommend to use a screwdriver or the like for this work.)

[Fig. 9.3.2] (P.5)

A Ter minal bed box B Knockout hole

C Remove

3. Fix power source wiring to terminal bed box by using buffer bushing for tensile

force. (PG connection or the like.) Connect transmission wiring to transmission

terminal bed through the knockout hole of terminal bed box using ordinary

bushing.

[Fig. 9.3.3] (P.5)

E Use PG bushing to keep the weight of the cable and external force from being

applied to the power supply terminal connector. Use a cable tie to secure the

cable.

F Power source wiring G Tensile force

H Use ordinary bushing I Transmission wiring

4. Connect the power source, Earth, transmission and remote controller wiring.

The dismounting of the terminal bed box is not needed.

[Fig. 9.3.4] (P.5)

J Power source terminal bed K Ter minal bed for indoor transmission

L Ter minal bed for remote controller M To 1-phase power source

N Transmission line DC 30 V

O Ter minal bed for outdoor transmission line (TB3)

P Transmission line to the remote controller, terminal bed for indoor unit and BC

controller

[Shield wire connection]

[Fig. 9.3.5] (P.5)

A Ter minal bed B Round terminal

C Shield wire

D The earth wire from two cables are connected together to the S terminal. (Dead-

end connection)

E Insulation tape (To keep the earth wire of the shielded cable from coming in con-

tact with the transmission terminal)

5. After wiring is complete, make sure again that there is no slack on the connec-

tions, and attach the cover onto the terminal bed box in the reverse order of

removal.

Notes:

• Do not pinch the cables or wires when attaching the terminal bed box

cover. Doing so may cause a risk of disconnection.

• When accommodating the terminal bed box, make sure that the connec-

tors on the box side are not removed. If removed, it cannot operate nor-

mally.

9.1. Power supply wiring

•Power supply cords of appliances shall not be lighter than design 245 IEC 57

or 227 IEC 57.

•A switch with at least 3 mm contact separation in each pole shall be provided

by the Air conditioner installation.

Power cable size: more than 1.5 mm

[Fig. 9.1.1] (P.4)

A Switch 16 A B Overcurrent protection 16 A

C Indoor unit

D Total operating current be less than 16 A

E Pull box

[Selecting non-fuse breaker (NF) or earth leakage breaker (NV)]

To select NF or NV instead of a combination of Class B fuse with switch, use the

following:

• In the case of Class B fuse rated 15 A or 20 A,

NF model name (MITSUBISHI): NF30-CS (15 A) (20 A)

NV model name (MITSUBISHI): NV30-CA (15 A) (20 A)

Use an earth leakage breaker with a sensitivity of less than 30 mA 0.1 s.

Caution:

Do not use anything other than the correct capacity breaker and fuse. Using

fuse, wire or copper wire with too large capacity may cause a risk of mal-

function or fire.

9.2. Connecting remote controller, indoor

and outdoor transmission cables

• Connect indoor unit TB5 and outdoor unit TB3. (Non-polarized 2-wire)

The “S” on indoor unit TB5 is a shielding wire connection. For specifications

about the connecting cables, refer to the outdoor unit installation manual.

• Install a remote controller following the manual supplied with the remote con-

troller.

• Connect the “1” and “2” on indoor unit TB15 to a MA remote controller. (Non-

polarized 2-wire)

• Connect the “M1” and “M2” on indoor unit TB5 to a M-NET remote controller.

(Non-polarized 2-wire)

• Connect the remote controller’s transmission cable within 10 m using a 0.75 mm

core cable. If the distance is more than 10 m, use a 1.25 mm

junction cable.

[Fig. 9.2.1] (P.4) MA Remote controller

[Fig. 9.2.2] (P.4) M-NET Remote controller

A Ter minal block for indoor transmission cable

B Ter minal block for outdoor transmission cable

C Remote controller

• DC 9 to 13 V between 1 and 2 (MA remote controller)

• DC 24 to 30 V between M1 and M2 (M-NET remote controller)

[Fig. 9.2.3] (P.4) MA Remote controller

[Fig. 9.2.4] (P.4) M-NET Remote controller

A Non-polarized B TB15

C Remote Controller D TB5

• The MA remote controller and the M-NET remote controller cannot be used at

the same time or interchangeably.

2. Remote controller cables

Types of cables

Cable diameter

Length

MA remote controller

Sheathed 2-core cable (unshielded) CVV

0.3 to 1.25 mm

Less than 200 m

M-NET remote controller

Sheathed 2-core cable (unshielded) CVV

0.3 to 1.25 mm

Add any portion in excess of 10 m to within the longest allowable trans-

mission cable length 200 m (Shielding portion is more than 1.25 mm

)

System configuration For a single-refrigerant system For a multi-refrigerant system

Transmission cable length Less than 120 m More than 120 m Regardless of length

Facility example

(for noise judgment)

Types of transmission

cables

Residence or independent store

without noise

VCTF, VCTFK, CVV, CVS, VVR,

VVF, VCT or shielding wire

CVVS or CPEVS

Building, clinic, hospital or communications

station without noise supposedly generated

from inverter equipment, private power gen-

erator, high-frequency medical equipment,

radio-used communications equipment and

so on

All facilities

Shielding wire CVVS or CPEVS

Length Less than 120 m Less than 200 m

Mitsubishi Electric PEFY-P15VMS1-E [11/21] Power supply wiring

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