Wiring Transmission Cables - Mitsubishi Electric City Multi PURY-HP72TKMU-A-H Installation Manual

[Fig. 11.2.1]

A

Power supply terminal block

Terminal block for indoor –

(TB1)

outdoor transmission line

Control box

L1 L2 L3

C

A Power source

C Ground screw

[Fig. 11.2.2]

A

B

C

A Cable strap

C Transmission cable

1 Types of control cables

1. Wiring transmission cables

Types of transmission cables: Shielding wire CVVS, CPEVS or MVVS

Cable diameter: More than 1.25 mm

Maximum wiring length: Within 200 m [656 ft]

Maximum length of transmission lines for centralized control and indoor/outdoor transmission lines (Maximum length via outdoor units): 500 m [1640 ft] MAX

The maximum length of the wiring between power supply unit for transmission lines (on the transmission lines for centralized control) and each outdoor unit and

system controller is 200 m [656 ft].

2. Remote control cables

M-NET Remote Controller

Kind of remote control cable

Sheathed 2-core cable (unshielded) CVV

0.3 to 1.25 mm

Cable diameter

(0.75 to 1.25 mm

When 10 m [32 ft] is exceeded, use cable

Remarks

transmission cables.

MA Remote Controller

Kind of remote control cable

Sheathed 2-core cable (unshielded) CVV

0.3 to 1.25 mm

Cable diameter

(0.75 to 1.25 mm

Remarks

Within 200 m [656 ft]

*

Connected with simple remote controller.

2 Wiring examples

Controller name, symbol and allowable number of controllers.

Name

Outdoor unit

Main unit

Sub unit

BC controller

Main unit

Sub unit

Indoor unit

Indoor unit controller

Remote controller

Remote controller (*1)

Other

Transmission booster unit

*1 A transmission booster (RP) may be required depending on the number of connected indoor unit controllers.

capacity is the same, they will be in ascending order of their address number.)

*3 When a PAR-30MAAU is connected to a group, no other MA remote controllers can be connected to the same group.

B

Terminal block for

centralized control

(TB3)

(TB7)

B Transmission line

B Power source cable

2

[AWG16]

2

[AWG 22 to 16]

2

[AWG 18 to 16])*

2

[AWG 22 to 16]

2

[AWG 18 to 16])*

Code

OC

OS

BC

BS

IC

RC

RP

When using wire size AWG 14, AWG 12, or AWG 10, be sure to use

knockout hole 2.

When using wire size AWG 8 or AWG 6, be sure to use knockout hole 4.

When using wire size AWG 4, AWG 3, or AWG 2 be sure to use knockout

hole 3.

When using wire size AWG

3

/

, AWG

0

hole 5.

suitable material.

2 Conduit tube installation

Open by hammering the knockout holes for the conduit tube located on the

base and the bottom part of the front panel.

When installing the conduit tube directly through the knockout holes, remove

the burr and protect the tube with masking tape.

Use the conduit tube to narrow down the opening if there is a possibility of

small animals entering the unit.

When taking the conduit tube out from the bottom part of the unit, caulk

around the tube opening to prevent water penetration.

Possible unit connections

– (*2)

– (*2)

One controller for one OC

Zero, one or two controllers for one OC

1 to 20 units per 1 OC (*1)

2 units maximum per group (*3)

0 to 2 units per 1 OC (*1)

2

/

, or AWG 0, be sure to use knockout

0

23