Mitsubishi Electric PUD-P-YMF-C Manual page 24

<a. Indoor/Outdoor Transmission Lines >
Connect A, B terminals of indoor/outdoor transmission line terminal board (TB3) on the outdoor unit and A, B
terminals of the Indoor/outdoor transmission terminal board (TB5). (Non-polar 2 wire)
✻Only use shield line.
[Grounding the shield line]
Connect the earth terminal of the OC and S terminal of the IC terminal board (TB5).
<b. Transmission Line for Centralized Control >
Connect A terminals of centralized control transmission line terminal board on each of the outdoor units with each
other.
Do the same with B terminals. Replace CN41 (power supply switch connector) with CN40 on only one OC.
✻Only use shield line.
[Grounding the shield line]
Connect S terminals of the TB7 of each of the outdoor units with each other.
Connect the S terminal of TB7 on the outdoor unit whose CN41 was replaced with CN40 to the earth terminal of
the electric box.
<c. Switch Setting >
Set the address as follows.
Unit or Controller
Main Unit
Indoor
1
Unit
Sub Unit
2 Outdoor Unit
Main Controller
MA
3 remote
controller
Sub Controller
Wiring and Address Setting
Address
Setting Range
Set the address for the controller at the
top of the indoor unit. Start with "01"
IC 01 ~ 49
then use sequential odd numbers
(i.e.01, 03, 05).
Add 1 to the address assigned to the
main unit in the same room.
IC 02 ~ 50
Add 50 to the address assigned to the
indoor unit within the same refrigerant
OC 51 ~ 100
system.
MA n/a
Use dipswitch to set the controller as
MA Sub controller
sub controller.
23
Setting Procedures
-
Factory
Remarks
Setting
00
00
Main