Mitsubishi Electronics PUHY-HP-THMU-A Wiring examples, Examples of transmission cable wiring

2Wiring examples

•Controller name, symbol and allowable number of controllers.

	Name	Code	Possible unit connections
Outdoor unit	Main unit	OC	– (*2)
	Sub unit	OS	– (*2)
Indoor unit	Indoor unit controller	IC	1 to 32 units per 1 OC (*1)
Remote controller	Remote controller (*1)	RC	2 units maximum per group
Other	Transmission booster unit	RP	0 to 1 unit per 1 OC (*1)

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

*2 OC and OS of the outdoor units in the same refrigerant system are automatically identified. They are identified as OC and OS in descending order of capacity. (If the capacity is the same, they will be in ascending order of their address number.)

Example of a group operation system with multiple outdoor units (Shielding wires and address setting are

GB

necessary.)

<Examples of transmission cable wiring>

[Fig. 11.3.1] M-NET Remote Controller

<A> Change the jumper connec- tor from CN41 to CN40 *1

<B> SW2-1:ON *2

L2

<C> Keep the jumper connector on CN41

<B> SW2-1:ON *2

L6

OC	A
CN41 CN40	IC
(51)
	(01)
TB3	TB5
M1M2 S M1 M2	M1M2S
TB7

r1

D

A B

(101)

ME

L3

OC

IC

CN41

(52)

(02)

TB3	TB5
M1M2 S M1M2	M1M2S
TB7

System

controller

A B S

L1
B		C
IC	IC
(04)	(05)
TB5	TB5
M1M2S	M1M2S
r2	r3
	A B	A B
	(105)	(155)
L4	ME E ME
IC	IC
(03)	(07)
TB5	TB5
M1M2S	M1M2S
L5
r4
A B
(103)
ME

IC

(06)

TB5

M1M2S

*1: When the power supply unit is not connected to the transmission line for centralized control, disconnect the male power supply connector (CN41) from ONE outdoor unit in the system and connect it to CN40.

*2: If a system controller is used, set SW2-1 on all of the outdoor units to ON.

[Fig. 11.3.2] MA Remote Controller

<A> Change the jumper connec- tor from CN41 to CN40 *1

<B> SW2-1:ON *2

L2

<C> Keep the jumper connector on CN41

<B> SW2-1:ON *2

L6

			L1
	OC	A		B
CN41 CN40		IC		IC
(51)		(01)		(04)
	TB3	TB5	TB15	TB5	TB15
M1 M2 S	M1 M2	M1 M2 S	1 2	M1 M2 S	1 2
TB7
D			c1
		c2	A B			c2
		L3	MA			L4
OC		IC		IC
CN41
(52)		(02)		(03)
	TB3	TB5	TB15	TB5 TB 15
M1 M2 S	M1 M2	M1M2 S	1 2	M1 M2 S	1	2
TB7

System	1
controller	c
A B S

		C
IC			IC
(05)		c2	(06)
TB5	TB15		TB5	TB15
M1 M2 S	1 2	M1M2 S		1 2
	c1	c4
	A B	A B	3
			c
EMA		MA
IC
(07)
TB5	TB15
M1 M2 S	1 2

A B

MA

*1: When the power supply unit is not connected to the transmission line for centralized control, disconnect the male power supply connector (CN41) from ONE outdoor unit in the system and connect it to CN40.

*2: If a system controller is used, set SW2-1 on all of the outdoor units to ON.

14