Specifications

CNTR-24
CONTROLLER (Feb. 2009)
CONTROLLER
DATA U4
3. SYSTEM CONTROLLER
Central controller
GB-50A
LAN
Power supply unit
PAC-SC51KUA or
PAC-SC50KUA
M-MET
ME remote
controller
M-NET
M-NET
ME remote
controller
LOSSNAY remote
controller
ME remote
controller
LOSSNAY unit
3-5-1. Power supply to GB-50A
GB-50A needs DC power supply of 24~30V for central control transmission use, operating and LAN function use. GB-50A can
have power supply at following 1,2,3 methods.
3-5-1-1. Power supply unit PAC-SC51KUA or PAC-SC50KUA are the recommended power supplies for GB-50A. See below for
basic system. For details, please
refer to Power supply
unit PAC-SC51KUA.
3-5-1-2. Power supply of DC 30V from connector of TB7 or TB3 of Outdoor unit.
3-5-1-2-1. TB7 of Outdoor unit.
As shown at Fig. 3-5-2, GB-50A receives power supply of DC 30V from the connector of TB7 at the R410A Outdoor unit.
In the case, one of the Outdoor units should change its power supply switch of CN41 to CN40.
Fig. 3-5-1 GB-50A and PAC-SC51KUA basic system.
Fig. 3-5-2 GB-50A, TB7 power supply
Central control
transmission line
Indoor/outdoor transmission line
Indoor/outdoor transmission line
R410A
Outdoor unit
CN41
CN40
CN41