Mitsubishi Electric PUHY-P200 Service Handbook page 26

a. Indoor/outdoor transmission line
The same as 1. (1)
Connection of shielded wire:
The same as 1. (1)
b. Centralized control transmission line
No connection is required.
c. MA remote controller wiring
The same as 1. (1)
For 2-remote controller operation:
The same as 1. (1)
For indoor group operation:
The same as 1. (1)
d. LOSSNAY connection
Apply jumper wiring to connect M1, M2 terminals of the terminal block (TB5) on the indoor unit (IC) to the terminal
block (TB5) on Lossnay (LC). (with non-polarity two wires)
❉ The interlocking registration of the indoor unit and Lossnay from the remote controller is required. (For the regis-
tration method, see the installation manual of remote controllers.)
e. Switch setting
Address setting is required as listed below.
Order Unit or controller
Main unit
1 Indoor unit
Sub unit
2 LOSSNAY
Main uni t
MA remote
3
controller
Sub uni t
4 Outdoor unit
5 Sub unit Hex. unit
Wiring method Address setting method
•
Address
Setting method
setting range
• Set the lowest address within
a same group to the indoor unit
desired to be the main unit.
IC 01 ~ 50
Set to the main unit address
within a same group in serial or-
der.
[Main unit +1, +2, +3, .... ]
Set any address after setting al
indoor units.
LC 01 ~ 50
MA Not required
Set with main/sub selector
MA Not required
switch.
The lowest address of indoor
unit within refrigerant system
OC
+ 50
51 ~ 100
OS Oundoor unit address + 1
- 24 -
Caution
• When operating indoor
units with different function
within a same group, as-
sign the indoor unit with the
most plenty of function to
the main unit.
l • Set the address not to be
overlapped with the indoor
unit address.
–
• When setting address to
"100," make it "50."
Factory
setting
00
00
Main
00