Mitsubishi Electric Mr.Slim PUZ-HA30NHA2 Service Manual page 20

COOL
ON/OFF
FAN
MODE VANE
,
CHECK LOUVER
TEST RUN
SET RESET
Start and finish of test run [For outdoor controller board]
• Operation from the indoor unit
Execute the test run using the installation manual for the indoor unit.
• Operation from the outdoor unit
By using the DIP switch SW4 on the control board of outdoor unit, test run can be started and finished, and its operation
mode (cooling/heating) can be set up.
1Set the operation mode (cooling/heating) using SW4-2.
2Turn on SW4-1 to start test run with the operation mode set by SW4-2.
3Turn off SW4-1 to finish the test run.
• There may be a faint knocking sound around the machine room after power is supplied,
but this is no problem with product because the linear expansion pipe is just moving to
adjust opening pulse.
• There may be a knocking sound around the machine room for several seconds after com-
pressor starts operating. But this is not a problem with product because the check valve
itself generates the sound because pressure difference is small in the refrigerant circuit.
Note:
The operation mode cannot be changed by SW4-2 during test run. (To change test run mode, stop the unit by SW4-1,
change the operation mode and restart the test run by SW4-1.)
TEST
RUN
TEMP
AUTO STOP
AUTO START
h
min
CLOCK
Test run [for wireless remote controller]
Measure an impedance between the power supply terminal block on
the outdoor unit and ground with a 500V Megger and check that it is
equal to or greater than 1.0M".
1 Turn on the main power to the unit.
2 Press the TEST RUN button twice continuously.
(Start this operation from the turned off status of remote controller
display.)
TEST RUN
and current operation mode are displayed.
MODE
3 Press the (
check whether cool air is blown out from the unit.
4 Press the MODE (
check whether warm air is blown out from the unit.
FAN
5 Press the button and check whether strong air is blown out
from the unit.
6 Press the VANE button and check whether the auto vane operates
properly.
7 Press the ON/OFF button to stop the test run.
Note:
• Point the remote controller towards the indoor unit receiver
while following steps 2 to 7.
• It is not possible to run in FAN, DRY or AUTO mode.
20
) button to activate mode, then
COOL
) button to activate mode, then
HEAT
<SW4>
ON
OFF
1 2
Stop Operation
Cooling Heating