Remote Controller Distinction Function - Toshiba MMY-MUP0721FT6P-UL Service Manual

7-7-4. Remote Controller Distinction Function

This function is provided to distinguish the remote controller connected to the indoor unit from the outdoor unit
for a refrigerant circuit system by using switches on the interface P.C. board of the header unit.
<Distinction procedure>
Power ON
[1] Set the display select switches on the
interface P.C. board of the header unit
as follows:
Set SW01/SW02/SW03 to [2/4/1]
[2] Push the push-switch SW04 on the
same board for 2 seconds or more.
[3] "Checking" display of the connected
remote controller flashes.
[4] Push the push-switch SW05 on the
interface P.C. board of the header
unit for 2 seconds or more.
Interface P.C. board
Be sure to turn on the power of the indoor unit
prior to the power of the outdoor unit.
7-segment display
[A] [B]
[ ] [ ]
A 1
7-segment display
[A] [B]
[ A 1 ] [ FF ]
Check the connected remote controller
End
Other end conditions:
1. 10 minutes has passed
2. SW01, SW02, or SW03 changed to other position.
Push switch
SW04
7-segment
display [A]
SW01
Rotary switches
- 181 -
Operation
SW05 SW06
7-segment
display [B]
SW02 SW03