Mitsubishi Electric City Multi PURY-HP72TKMU-A-H Installation Manual page 25

[Fig. 11.3.3] Combination of outdoor units and transmission booster unit

L

11

OS

OC

(52)

(51)

M1M2 S

M1M2 S

TB7

TB7

CN41

CN41

TB3

TB3

M1M2

M1M2

( ) Address

Daisy-chain terminals (TB3) on outdoor units in the same

refrigerant system together.

Leave the power jumper connector on CN41 as it is. When

connecting a system controller to the transmission line (TB7) for

centralized control, refer to [Fig. 11.3.1], [Fig. 11.3.2], or DATA

BOOK.

a. Always use shielded wire when making connections between the outdoor unit (OC) and the indoor unit (IC), as well for all OC-OC, OC-OS and IC-IC wiring intervals.

b. Use feed wiring to connect terminals M1 and M2 and the ground terminal

M2 and terminal S on the transmission line block of the indoor unit (IC). For OC and OS, connect TB3 to TB3.

c. Connect terminals 1 (M1) and 2 (M2) on the transmission line terminal block of the indoor unit (IC) that has the most recent address within the same group to the

terminal block on the remote controller (RC).

d. Connect together terminals M1, M2 and terminal S on the terminal block for central control (TB7) for the outdoor unit in a different refrigerant system (OC). For OC

and OS in the same refrigerant system, connect TB7 to TB7.

e. When the power supply unit is not installed on the central control transmission line, change the jumper connector on the control board from CN41 to CN40 on only

one outdoor unit in the system (except TKMU model). When the System controller is connected to TB7 side and TKMU outdoor unit model is used, connect a PAC-

SC51KUA to TB7 side. If a PAC-SC51KUA cannot be used, connect the System controller to TB3 side. Up to three System controllers can be connected to TB3 side.

f.

Connect the terminal S on the terminal block for central control (TB7) for the outdoor unit (OC) for the unit into which the jumper connector was inserted into CN40 in

the step above to the ground terminal

g. Set the address setting switch as follows.

*

To set the outdoor unit address to 100, the outdoor address setting switch must be set to 50.

Unit

Indoor unit (Main)

Indoor unit (Sub)

Outdoor Unit (OC, OS)

BC controller (Main)

BC controller (Sub)

M-NET R/C (Main)

M-NET R/C (Sub)

MA R/C

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

h. The group setting operations among the multiple indoor units is done by the remote controller (RC) after the electrical power has been turned on.

i.

When the centralized remote controller is connected to the system, set centralized control switches (SW5-1) on control boards in all outdoor units (OC, OS) to "ON".

L

L

12

13

BC

IC

TB02

TB5

TB5

M1M2 S

M1M2 S

M1M2 S

A B

ME

on the transmission line terminal block (TB3) of each outdoor unit (OC) to terminals M1,

in the electrical component box.

Range

Use the most recent address within the same group of indoor units. With an R2 system with sub BC

controllers, set the indoor unit address in the following order:

1 Indoor units connected to the main BC controller

2 Indoor units connected to BC sub controller 1

01 to 50

3 Indoor units connected to BC sub controller 2

Set the indoor unit addresses so that all the addresses of 1 are smaller than those of 2, and that all

the addresses of 2 are smaller than those of 3.

Use an address, other than that of the IC (Main) from among the units within the same group of indoor

01 to 50

units. This must be in sequence with the IC (Main)

Set the addresses of the outdoor units in the same refrigerant system in the order of sequential

51 to 100

Outdoor unit address plus 1. When the set indoor unit address duplicates the address of another

51 to 100

indoor unit, set the new address to a vacant address within the setting range.

51 to 100

Lowest address within the indoor units connected to the BC controller (sub) plus 50

101 to 150

Set at an IC (Main) address within the same group plus 100

151 to 200

Set at an IC (Main) address within the same group plus 150

–

Unnecessary address setting (Necessary main/sub setting) (*2)

L

L

14

16

Ground

IC

RP

TB2

TB3

A B

S

A B S

M1M2 S

Setting Method

L

17

IC

IC

TB5

TB5

M1M2 S

A B

ME

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