Mitsubishi Electronics PUY-A36NHA2 NET address setting, Refrigerant address setting, NET wiring

●M-NET wiring

(1)	Use 2-core x 1.25mm2 [AWG16] shield wire for electric wires.	M-NET
	(Excluding the case connecting to system controller.)	terminal	Ground
		block
(2)	Connect the wire to the M-NET terminal block. Connect one core of the		wire
	transmission wire (non-polar) to A terminal and the other to B. Peel the
		A B	S
	shield wire, twist the shield part to a string and connect it to S terminal.
		Transmission	Shield
(3)	In the system which several outdoor units are being connected, the terminal
		wire	part

(A, B, S) on M-NET terminal block should be individually wired to the other

outdoor unit’s terminal, i.e. A to A, B to B and S to S. In this case, choose one of those outdoor units and drive a screw to fix an ground wire on the plate as shown on the right figure.

8-4-1. M-NET address setting

In A-control models, M-NET address and refrigerant address should be set only for the outdoor unit. Similar to CITY MULTI series, there is no need to set the address of outdoor unit and remote controller. To construct a central control system, the setting of M-NET address should be conducted only upon the outdoor unit. The setting range should be 1 to 50 (the same as that of the indoor unit in CITY MULTI system), and the address number should be consecutively set in a same group.

Address number can be set by using rotary switches (SW11 for ones digit and SW12 for tens digit), which is located on the M-NET board of outdoor unit.

(Initial setting: all addresses are set to “0”.)

8-4-2. Refrigerant address setting

<Setting example> M-NET Address No.
	SW11
Switching	ones
	digit
setting	SW12
	tens
	digit

1

2	34
01	5
9	7	6
8
2	34
01	5
9	7	6
8

2

2	34
01	5
9	7	6
8
2	34
01	5
9	7	6
8

~

50

2	34
01	5
9	7	6
8
2	34
01	5
9	7	6
8

In case of multiple grouping system (multiple refrigerant circuits in one group), indoor units should be connected by remote controller wiring (TB5) and the refrigerant address needs to be set. Leave the refrigerant addresses to “00” if the group set- ting is not conducted. Set the refrigerant address by using DIP SW1-3 to -6 on the outdoor controller board. [Initial setting: all switches are OFF. (All refrigerant addresses are “00”.)]

Refrigerant address

ON							ON							ON							ON							ON							ON							ON							ON
OFF							OFF							OFF							OFF							OFF							OFF							OFF							OFF
1	2	3	4	5	6	1	2	3	4	5	6	1	2	3	4	5	6	1	2	3	4	5	6	1	2	3	4	5	6	1	2	3	4	5	6	1	2	3	4	5	6	1	2	3	4	5	6
			0							1							2							3							4							5							6							7
ON							ON							ON							ON							ON							ON							ON							ON
OFF							OFF							OFF							OFF							OFF							OFF							OFF							OFF
	1	2	3	4	5	6		1	2	3	4	5	6		1	2	3	4	5	6		1	2	3	4	5	6		1	2	3	4	5	6		1	2	3	4	5	6		1	2	3	4	5	6		1	2	3	4	5	6
			8							9							10							11							12							13							14							15

8-4-3. Regulations in address settings

In case of multiple grouping system, M-NET and refrigerant address settings should be done as explained in the above sec- tion. Set the lowest number in the group for the outdoor unit whose refrigerant address is “00” as its M-NET address.

Group A Group B Group C

System controller

Power supply unit for transmission wire

Refrigerant address 00

M-NET address 01

A-control remote controller

Refrigerant address 00

M-NET address 02

A-control remote controller

Refrigerant address 01

M-NET address 03

TB5

Refrigerant address 00

M-NET address 04

A-control remote controller

wRefrigerant addresses can be overlapped if they are in the different group.

System controller

Power supply unit for transmission wire

Group A

Refrigerant address 00

M-NET address 01

A-control remote controller

Refrigerant address 01

M-NET address 02

Refrigerant address 00

M-NET address 04

TB5

A-control remote controller

Group B

Refrigerant address 01

M-NET address 03

Refrigerant address 02

M-NET address 05

wIn group B, M-NET address of the outdoor unit whose refrigerant address is “00” is not set to the minimum in the group. As “03” is right for this situation, the setting is wrong. Taking group A as a good sample, set the minimum M-NET address in the group for the outdoor unit whose refrigerant address is “00”.

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