Specifications
WR2-SERIES SYSTEM DESIGN (June 2010)
WR2SD-19
WR2-SERIES
SYSTEM DESIGN
2. M-NET CONTROL
2-4-3-3. MA remote controller, Multi-refrigerant-system, System Controller at TB7
/TB3
side, Booster for long M-NET wiring
2. Address should be set to Indoor units, LOSSNAY and system controller.
3. M-NET power is supplied by the Heat source unit at TB3, while Indoor unit and ME remote controller consume the M-NET power
for transmission use. The power balance is needed to consider for long M-NET wiring. Details refer to 2-3 "System configuration
restrictions".
NOTE:
1. Heat source units OC and OS in one refrigerant circuit system are automatically detected.
OC and OS are ranked in descending order of capacity. If units are the same capacity, they are ranked in ascending order
of their address.
Indoor unit
MA R/
CM
A R/C
(Main)(Sub)
MA R/C
SRU
Wireless R/C
*1
*2 System controller should connect to TB7 at the Heat source unit and use power supply unit together in Multi-Refrigerant-System.
For AG-150A, 24VDC should be used with the PAC-SC51KUA.
*1
01
BC controller
53
BC controller
(Main)
93
02 03 30
TB15
TB5TB02 TB5TB5TB2
Transmission Booster
PAC-SF46EPA
TB5
TB15 TB15 TB3
TB15
MA R/C
(Main)(Sub)
MA R/C
TB15
Indoor unit
MA R/C
SRU
Wireless R/C
*1
*1
41
95
45 46
TB15
TB5TB02 TB5TB5
TB15
*1 For Wireless R/C and Signal receiver unit (SRU), channel 1, 2 and 3 are selectable and should be set to same channel.
BC controller
(Sub1)
Group 2Group1 Group 21
Group 31 Group 34 Group 35
TB3
TB7TB7 TB7 TB7
TB7
TB3
5251
OC OS
TB3TB3
9291
OC OS
TB3
97
OC
CN41CN40CN41CN40 CN41CN40CN41CN40 CN41CN40
ON
DipSW2-1
ON
DipSW2-1
ON
DipSW2-1
ON
DipSW2-1
ON
DipSW2-1
4. Indoor units should be set with a branch number.
5. Assign an address to each of the sub BC controllers which equals the sum of the smallest address of the indoor
units that are connected to each sub BC controller and 50.
PQRY-P-TSHMU/YSHMU PQRY-P-TSHMU/YSHMU PQRY-P-THMU/YHMU
SC*3
202
*2
000 or 201
PSU
Power supply
unit (PSU)
(PAC-SC51KUA)
SC
SC*3
203
ME R/C PZ-52SF
142 143
42
43
TB5
LOSSNAY
TB5
Group 32 Group 33
*3 When multiple system controllers are connected in the system, set the controller with more functions than others as a "main"
controller and others as "sub".
Make the setting to only one of the system controllers for "prohibition of operation from local remote controller".