Mitsubishi Electric PUHY-P250YNW-A Service Handbook page 124

[6-5 Initialization Procedure for System Rotation Settings ]
3. Descriptions of the items displayed on Maintenance tool and LED on outdoor control board.
Below table is the meanings of each items displayed on MN tool and LED on outdoor unit.
No Item
1 Back up unit
(*1)
2 Rotation timer
[Hr](*1)
3 Units composing
System rotation
(*1)
4 Current status
*1. No.1-3 are displayed only on the control unit, No.4 are displayed on every unit.
*2. By setting DipSW 1-1 through 1-10, each item can be monitored. Please refer to last chapter of
service handbook how to set DipSW.
BS_06_C
Mainte nance Tool
Item name Description
SR Backup Address of current
unit backup unit will
show.
SR Timer Stoppage time of
(Hr) unit will show.
SR Units Number of units
Composing system
rotation will show
(Min:2/Max:10)
SR Stop 0:Running
1:Stopped under
system rotation control
(Status changes after 1
cycle rotation finished)
Monitoring screen of maintenance tool
LED on outdoor control board (*2)
No. Description
No.304 Address of current
backup unit will show.
No.305 Stoppage time of unit will
show.
No.303 The addresses of units in
the group are displayed
one by one every
second.
No.7 LD5 will be lit when the
(LD5) unit is stopped under
system rotation control.
(Status changes after 1
cycle rotation finished)
Item related to
system rotation
7
chapter 6 -