Failure Outdoor Unit - Toshiba MMY-MUP0801HT8JP Service Manual

(4) [rd] [... FF] will be displayed on the 7-segment display, and reclaim operation will start.
* To put the operation on hold midway, turn off the power supply to all the outdoor units, or press SW05 on
the interface P.C. board.
(5) Approx. 20 minutes after the system starts up , fully close the gas pipe service value of the troubled outdoor unit.
(6) Press SW05 on the interface board to finish the reclaim operation.
(7) Turn off the power supply to all the outdoor units , and recover the residual refrigerant in the outdoor unit
using a refrigerant re device. Be sure to measure the amount of recovered refrigerant. (This is necessary to
determine how much additional refrigerant will be needed after the completion of the repair.)
Header unit
(8)
Turn off the power supply to all the outdoor
units , and recover the residual refrigerant
in the outdoor unit using a refrigerant
recovery device. Be sure to measure
the amount of recovered refrigerant.
(7)
Press SW05 on the interface
board to finish the reclaim
operation.
(6)
Approx. 20 minutes after system startup,
fully close gas pipe service value.
(4) Set SW01/02/03 to 2/11/1.
[rd] [... ... ...] is displayed.
↓
Press SW04 and hold for 5 seconds or more.
(5) [rd] [ FF] is displayed (reclaim operation starts).
Behavior during reclaim operation.
Outdoor unit
Troubled outdoor unit
Every other outdoor unit
This is the end of the refrigerant recovery operation.
Set SW01/02/03 of the troubled outdoor unit and the outdoor unit for pressure adjustment back to 1/1/1.

Failure outdoor unit

Behavior
Compressors: Turned off
Outdoor fan: On
PMV1, PMV2 ,PMV3 and
PMV4: Open
Operates in test cooling
operation mode
- 258 -
(1)
Connect liquid pipe check joint and low
pressure-side check joint using charge
hose, and purge hose of air
(2)
Fully close liquid pipe service value.
(Leave service valves of gas pipe
fully open.)
Interface P.C. board of troubled outdoor unit
CN30 CN31 CN32 SW04 SW05 SW06
D600 D601 D602 D603 D604
SW01 SW02
1 1
SW03
1