Specifications

WR2-SERIES SYSTEM DESIGN (June 2010)
WR2SD-21
WR2-SERIES
SYSTEM DESIGN
2. M-NET CONTROL
PQRY-P-TSHMU/YSHMU PQRY-P-TSHMU/YSHMU PQRY-P-THMU/YHMU
2-4-3-6. ME remote controller, Multi-refrigerant-system, System Controller at TB 7side, LOSSNAY, Booster for long M-NET wiring
2. M-NET power is supplied by the Heat source unit at TB3, while Indoor unit and ME RC 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.
3. Indoor units should be set with a branch number.
4. 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.
When the address assigned to sub BC controller overlaps those of any other units including heat source units (OC/OS) or main BC
controller, sub BC controller will be given priority to have the address.
Indoor unit
ME R/CME R/C
*1 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.
.
01 02 03 30
TB5
BC controller
(Main)
53
TB02
BC controller
(Sub)
80
TB02
BC controller
TB02
TB5TB
5T
B2
Transmission Booster
PAC-SF46EPA
TB5
TB3
ME R/CME R/C
Indoor unit
ME R/C
144 145 195
130 180
4193 44 45
TB5 TB5TB5
ME R/C
141
ME R/C
101
ME R/C
102
Group 2Group 1 Group 21
Group 31 Group 34 Group 35
TB3
TB7TB7 TB7 TB7
TB7
TB3
5251
OC OS
TB3TB3
9291
OC OS
TB3
96
OC
CN41CN40CN41CN40 CN41CN40CN41CN40 CN41CN40
ON
DipSW2-1
ON
DipSW2-1
ON
DipSW2-1
ON
DipSW2-1
ON
DipSW2-1
2-4-3-7. Example : BC, BC sub
NOTE
• Indoor units should be set with a branch number.
• BC (main) address = O/U address + 1
• BC (sub) address = Lowest address within the indoor units connected to the BC controller (sub) + 50
• If applicable, set the sub BC controllers in an PQRY system in the following order:
(1) Indoor unit to be connected to the BC controller (Main)
(2) Indoor unit to be connected to the BC controller (No.1 Sub)
(3) Indoor unit to be connected to the BC controller (No.2 Sub)
Set the address so that (1)<(2)<(3)
OC
BC controllers
Group 1
51
TB3TB3
TB02
TB5TB5 TB5 TB5 TB5 TB5 TB5 TB5
TB0
2T
B02
01 02 03
101
Group 3Group 2
04 05 06
104 106
53 54
CMB-NU-GB(No.1 sub)
BC controllers
: M-NET wiring
CMB-NU-GA(main)
DipSW2-1
OFF
OS
52
CN41
CN40
CN41
CN40
DipSW2-1
OFF
: Piping
Group 4
07 08
107
57
CMB-NU-GB(No.2 sub)
BC controllers
PQRY-P-TSHMU/YSHMU
*1
000 or 201
PSU
Power supply
unit (PSU)
(PAC-SC51KUA)
SC
ME R/C PZ-52SF
142 143
42
43
TB5
LOSSNAY
TB5
Group 32 Group 33