Mitsubishi Electric MXZ-4B80VA Instructions D'installation page 8

4-6. TEST RUN
• Be sure to perform the test run for each unit. Make sure each indoor unit op-
unit connecting wires.
About the restart protective mechanism
Once the compressor stops, the restart preventive device operates so the com-
pressor will not operate for 3 minutes to protect the air conditioner.
Wiring/piping correction function
Make sure that the following is done.
• Power is supplied to the unit.
• Stop valves are open.
Note:
malfunction.
Procedure
table.
• The operation is done while the power is supplied. Make sure not to contact
• To prevent electronic control P.C. board damage, make sure to perform static
elimination before operating this function.
low.
4-7. EXPLANATION TO THE USER
5. RELOCATION AND MAINTENANCE
5-1. PUMPING DOWN
phere.
2
To start the
Press the E.O. SW several times until all LED lamps turn off. Refer to operating instructions for details .
When pumping down the refrigerant, stop the compressor before disconnecting
the refrigerant pipes. The compressor may burst if air etc. get into it.
8
All manuals and user guides at all-guides.com
.
WARNING
LED indication during detection:
LED
Lighted Lighted
Result of piping/wiring correction function
LED
Lighted Not lighted Lighted
Blinking Blinking Blinking
-
Other indications
Blinking
Result
Completed
Cannot be corrected
Refer to "SAFETY PRE-
CAUTIONS WHEN LED
FLASHES" located behind
the service panel.
-
-
2