Specifications

ManualsBrandsMitsubishi Electric ManualsAir ConditionerLMAP02-E

WR2SD-8

WR2-SERIES SYSTEM DESIGN (June 2010)

WR2-SERIES

SYSTEM DESIGN

1. ELECTRICAL WORK

1-4. Power Supply Examples

The local standards and/or regulations is applicable at a higher priority.

1-4-1. PQRY-P72, 96, 120THMU/YHMU

Note4

Note3

To *1 or *2

Note7

Connector

CN41 CN40

Power supply

3-phase 3-wire

208-230V 60Hz(THMU)

460V 60Hz(YHMU)

Note10,13

Power supply

1-phase

208-230V 60Hz

Note10

Power supply

1-phase

208-230V 60Hz

Central control

transmission cable

>=1.25mm

Shield cable

(CVVS, CPEVS

MVVS)

Indoor-heat source

transmission cable

>=1.25mm

Shield cable

Indoor-heat source

transmission cable

>=1.25mm

Shield cable

(Using MA remote controller)

Connecting TB5 terminal.

BC controller

(Using ME remote controller)

Connecting TB5 terminal.

TB7

(S)

TB1

(L1,L2,L3)

TB3

(M1,M2)

TB5

(M1,M2)

TB2

(L,N)

TB15

(1,2)

TB5

(M1,M2)

TB2

(L,N)

TB15

(1,2)

TB5

(M1,M2)

TB2

(L,N)

TB15

(1,2)

TB5

(M1,M2)

TB2

(L,N)

TB1

(R,S)

TB2 TB3

TB15

(1,2)

TB7

(M1,M2)

Power supply

1-phase

208-230V 60Hz

Transmission

booster

Note8

Note9

MA R/C MA R/C MA R/C

ME R/C ME R/C ME R/C

MA R/C cable

0.3-1.25mm

(0.75~1.25mm

)

<=200m

Note5, Note11

ME R/C cable

0.3~1.25mm

(0.75~1.25mm

)

<=10m

Note5, Note11

(Shield)

TB02

(M1,M2)

TB01

L,N

(Shield)

BC controller

TB02

(M1,M2)

(Shield)

(Shield) (Shield)

(Shield)

(Shield) (Shield)

Note4

To other HU

Note6

Note7

Note6

Note7

* Power supply

specifications vary with the

model of connected indoor

units or BC controller

Note7

Power supply

1-phase

208-230V 60Hz

Note10

TB5

(M1,M2)

TB2

(L,N)

TB15

(1,2)

TB5

(M1,M2)

TB2

(L,N)

TB15

(1,2)

TB5

(M1,M2)

TB2

(L,N)

TB15

(1,2)

TB5

(M1,M2)

TB2

(L,N)

TB1

(R,S)

TB2 TB3

TB15

(1,2)

Transmission

booster

Note8

Note9

(Shield)

(Shield) (Shield)

(Shield)

(Shield) (Shield)

* Power supply

specifications vary with the

model of connected indoor

units or BC controller

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

Heat source 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 Heat source unit connected with system controller, power-supply to TB7 of the

heat source unit(s) is needed. The connector change from CN41 to CN40 at one of the

heat source units will enable the heat source unit to supply power to TB7, or an extra power

supplying unit PAC-SC51KUA should be used. The transmission cable (above 1.25mm

shielded, CVVS/CPEVS/MVVS) among Heat source units and system controllers is called

central control transmission cable. The shield wire of the central control transmission

cable must be grounded at the Heat source unit whose CN41 is changed to CN40.

5 MA R/C transmission cable (0.3-1.25mm

) must be less than 200m in length, while ME

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

) when the length

is counted in the M-Net length. Both Compact MA and ME R/C transmission cables size

0.75~1.25mm

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".

If using 1 or 2 (main/sub) ME remote controller control more than 1 indoor unit, set

address to Indoor unit and ME remote controller. For the method, refer to 2-4. "Address

Setting".

8 Indoor board consumes power from TB3. The power balance should be considered

according to System Design 2-3 "System configuration restrictions".

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 Heat source 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.

Note12

Pull box

TB01

L,N

*1 The breakers for current leakage should support Inverter circuit. (e.g. Mitsubishi Electric's NV-C series or equivalent).

*2 Breakers for current leakage should combine using of switch.

*3 It shows data for B-type fuse of the breaker for current leakage.

SwitchMinimum Wire thickness

G wirePower wire

<mm

/AWG> <mm

/AWG>

Switch

(NFB)

<A>

OCP*3

<A>

BKC

<A>

Breakers for current leakage

*1, *2

Model Symbol

BKC

OCP

NFB

MA R/C

Breaker capacity

Over-current protector

Non-fuse breaker

Heat source unit

Indoor unit

System controller

MA remote controller

ME remote controller

PQRY-P72THMU 20 A 30 mA or 100 mA 0.1 sec. or less 20 20 20 3.3/12

5.3/10

PQRY-P96THMU 30 A 30 mA or 100 mA 0.1 sec. or less 30 30 30

PQRY-P120THMU 40 A 100 mA 0.1 sec. or less 40 40 40 8.4/8

PQRY-P72YHMU 15 A 30 mA or 100 mA 0.1 sec. or less 15 15 15 2.1/14

PQRY-P96YHMU 15 A 30 mA or 100 mA 0.1 sec. or less 15 15 15 2.1/14

PQRY-P120YHMU 20 A 30 mA or 100 mA 0.1 sec. or less 20 20 20 3.3/12

3.3/12

5.3/10

8.4/8

2.1/14

3.3/12

ME R/

Breakers for

current leakage

Switch

Breakers for

current leakage

Switch

Breakers for

current leakage

Switch

Breakers for

current leakage

Switch

Breakers for

current leakage

Switch