Specifications

CNTR-50
CONTROLLER (Feb. 2009)
CONTROLLER
DATA U4
3. SYSTEM CONTROLLER
PAC-SC51KUA supplies DC power of 22-30V and 24V at TB2 and TB3 respectively; the former is for centralized transmission use
and the latter is for AG-150A operation and LAN function use.
3-9-1. When using PAC-SC51KUA as the power supplier for system controller, the capacity for system controller is
considered as follows.
Lossnay can have its own Lossnay remote
controller, but the total quantity of the controllers
is limited.
TB3
TB2
(30VDC)
(24VDC)
Main SC
Sub SC
Add : 000
Add : 201
LOSSNAY
Power supply unit
PAC-SC51KUA
SC : System Controller
Centralized control
transmission line
Indoor/outdoor transmission line
Indoor/outdoor transmission line
CN41
CN41
TB7
TB7
M-NET
Fig. 3-9-1 Equivalent power consumption of controllers
In this case, pay attention to leave the power supply switch connector on CN41 of the Outdoor unit as the factory setting
before shipment.
Ta king the power consumption of the control board of Indoor unit as 1, the power consumption of various controllers is rated
at Table 3-9-1.
Centralized controller
Other system controllers Remote controllers
Ta ble 3-9-1 Equivalent power consumption of controllers
PAC-SC51KUA is capable to supply eqovalent power up to 5, therefore the maximum connectable number of system controller
is as follows.
*1: G-50A cannot be connected to PAC-SC51KUA. Use PAC-SC50KUA to connect G-50A.
*1: G-50A cannot be connected to PAC-SC51KUA. Use PAC-SC50KUA to connect G-50A.
As the air conditioner control system may combine all kinds of system controllers, the total power
consumption of system controllers need to count with Table 3-9-2.
For example, the controller system contain 1 AG-150A, 2 ON/OFF remote controllers (PAC-YT40ANRA),
1 schedule timer (PAC-TY34STA), 6 Lossnay remote controllers connected at centralized control
communication line.
Then the total power consumption is
1 x 0.5+2 x 1+1 x 0.5+6 x 0.25 = 4.5 < 5.
One PAC-SC51KUA is therefore enough. The total power consumption should not exceed 5.
Ta ble 3-9-2 Max. connectable quianity of controller when using PAC-SC51KUA
CENTRALIZED CONTROLLER AG-150A
0.5 3
ON/OFF remote controller
(PAC-YT40ANRA)
AG-150A
ME remote controller
1 0.5
GB-50A
System remote controller
(PAC-44SRA)
Schedule timer
( PAC-YT34STA)
(PAR-F27MEA)
LOSSNAY remote controller
(PZ-52SF)
0.25
Centralized controller
Other system controllers Remote controllers
AG-150A GB-24A
1 unit 1 unit
Schedule timer LOSSNAY remote controller
( PAC-YT34STA) (PZ-52SF)
System remote controller ME remote controller
(PAC-44SRA) (PAR-F27MEA)
ON/OFF remote controller
(PAC-YT40ANRA)
20 units5 units 10 units
1
GB-24A
*1
*1
GB-50A
1 unit
3-9. Power supply unit [PAC-SC51KUA]