3 - 15
Controller
MEE15K022
3. System remote controller
YKB/YLM 2nd
Fig. 3 A
T-50B, TB3 scheme.
Indoor/outdoor transmission line
TB3
ME remote
cotroller
CN41
(3) Power supply of M-NET from outdoor unit connector TB3.
AT-50B can also receive power supply from R410A/R407C/R22 outdoor unit connector TB3. However, if the
outdoor unit shuts down, AT-50B will also automatically shut down. Therefore, this scheme is not recommended
for air conditioning system consisting of multiple outdoor units.
Advanced touch controller
AT-50B
