Toshiba Carrier MMD-AP0074BH2UL-1 Installation Manual - Page 19
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9
Test run
Before test run
• Before turning on the power supply, carry out the
following procedure.
1) By using 500 V-megger, check that resistance
of 1 MΩ or more exists between the terminal
block L
to L
and the grounding.
1
2
If resistance of less than 1 MΩ is detected, do
not run the unit.
2) Check the valve of the outdoor unit being
opened fully.
• To protect the compressor at activation time, leave
power-ON for 12 hours or more before operating.
• Do not 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, set addresses by following
the Installation Manual supplied with the outdoor
unit.
Execute a test run
Operate the unit with the wired remote control as usual.
For the procedure of the operation, refer to the
attached Owner's Manual to the outdoor unit.
A forced test run can be executed in the following
procedure even if the operation stops by thermostat-
OFF.
In order to prevent a serial 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.
35-EN
Wired remote control
2, 4
3
1,5
1
Push
button for 4 seconds or more.
[TEST] is displayed on the display part and
the selection of mode in the test mode is
permitted.
2
Push
button.
3
Select the operation mode with
button, [
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 trouble is performed as usual.
4
After the test run, push
button to
stop a test run.
1
(Display part is same as procedure
.)
5
Push
button to cancel (release from) the
test run mode.
([TEST] disappears on the display and the status
returns to a normal.)
Wireless remote control
(TCB-AX32-UL)
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
– 18 –
If a test run cannot be
properly performed
If a test run is performed before the outside duct is
installed, the protective control works to stop the unit,
and the check code "P12" appears. This is not a
malfunction.
(The current control works and heating protection
control due to the characteristics of the DC motor
employed as the indoor fan motor of this model.)
If performing a test run before installing the outside
duct, set the air volume to LOW, or block the air vent.
EN
36-EN