Toshiba MMU-AP0072WH1, Installation Manual, Page: 28 / 39

SMMS 2-way Air Discharge Cassette Type Installation Manual 27
EN-53 EN-54
9
TEST RUN
„ Before test run
• Before turning on the power supply, carry out the
following procedure.
1.
Using 500 V-megger, check that resistance of
1 M
Ω or more exists between the terminal block
of the power supply and the earth (earthing).
If resistance of less than 1 M
Ω is detected, do not
run the unit.
2. Check all valve of the outdoor unit being opened
fully.
• To protect the compressor at activation time, leave
power-ON for 12 hours or more be for operating.
• Never press the electromagnetic contactor to forcibly
perform a test run. (This is very dangerous because
the protective device does not work.)
• Before starting a test run, be sure to set addresses
following the Installation Manual supplied with the
outdoor unit.
„ How to execute a test run
• When a fan operation is to be performed for an
individual indoor unit, turn off the power, short CN72
on the circuit board, and then turn the power back on.
(First set the operating mode to “fan,” and then
operate.) When the test run has been performed using
this method, do NOT forget to release the shorting of
CN72 after the test run is completed.
• Using the remote controller, operate the unit as usual.
For the procedure of the operation, refer to the
attached Owner’s Manual. A forced test run can be
executed in the following procedure even if the
operation stops by thermo.-OFF. In order to prevent a
continuous operation, the forced test run is released
after 60 minutes have passed and returns to the usual
operation.
CAUTION
Do not use the forced test run for cases other than the
test run because it applies an excessive load to the
devices.
In case of wired remote controller
1
When the TEST button is pressed and held for at
least 4 seconds, “TEST” appears on the display, and
the test run mode is established.
(While the test run is underway, “TEST” remains on
the display.)
2
Push button.
3
Using button, select the operation mode,
[ COOL] or [ HEAT].
• Do not run the air conditioner in a mode other
than [ COOL] or [ HEAT].
• The temperature controlling function does not
work during test run.
• The detection of error is performed as usual.
2, 4
3
1,5
4
After the test run, push button to stop a
test run.
(Display part is same as procedure
1 .)
5
Push check button to cancel the test run mode.
([TEST] disappears on the display and the status
returns to a normal.)
In case of wireless remote controller
(RBC-AX32UW(W)-E)
1
When TEMPORARY button is pushed for
10 seconds or more, “Pi!” sound is heard and
the operation changes to a forced cooling
operation. After approx. 3 minutes, a cooling
operation starts forcedly.
Check cool air starts blowing. If the operation does
not start, check wiring again.
2
To stop a test operation, push TEMPORARY
button once again (Approx. 1 second).
• Check wiring / piping of the indoor and outdoor
units in forced cooling operation.
TEMPORARY button