Mitsubishi Electric PU(H)Y-P250YGM-A, Service Handbook

Page: 36 / 215

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[
II
Restrictions ]
Wiring method/address setting method
1) Indoor/outdoor transmission line
Same as [4] 1.
2) MA remote controller wiring
[When 2 remote controllers are connected to the system]
When two remote controllers are connected to the system, connect terminals 1 and 2 of the terminal block (TB15)
on the indoor unit (IC) to the terminal block on the MA remote controllers (option).
ΠSet the Main/Sub switch on the connected MA remote controllers (option) to SUB.(See the installation manual for the
MA remote controller for the setting method.)
3) Switch setting
Address setting is required as follows.
Pro
ce-
du-
res
Unit or controller
Address-
settin-
grange
Setting method Notes
Facto-
ry set-
ting
1 Indoor
unit Main unit IC 01 to 50 Assign a sequential odd number
starting with "01" to the upper indoor
controller. 00
Sub unit IC 01 to 50 Assign sequential numbers starting
with the address of the main unit in
the same group. (Main unit address
+1)
2 Outdoor unit OC 51 to 100 Add 50 to the address assigned to
the indoor unit connected to the sys-
tem with one outdoor unit. 00
3 MA
remote
controller Main
remote
controller MA No set-
tings re-
quired. - Main
Sub
remote
controller MA Sub
remote
controller Settings to be made with the sub/
main switch