Test Run - Toshiba MMD-UP0051BHP-E Installation Manual

10

Test run

Before test run
Before turning on the power supply, carry out the
following procedure.
1) By using insulation tester (500VMΩ), check that
resistance of 1MΩ or more exists between the
terminal block L to N and the earth (grounding).
If resistance of less than 1MΩ 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.
Before starting a test run, set addresses by following
the Installation Manual supplied with the outdoor
unit.
Requirements for turning
thermostat OFF
Cooling operation
• When the outdoor/suction air temperature is lower
than or equal to 19 °C.
When the outdoor/suction air temperature is lower
•
than or equal to 3 °C above the set temperature.
Heating operation
When the outdoor/suction air temperature is lower
•
than or equal to -10 °C
When the outdoor/suction air temperature is higher
•
than or equal to 15 °C.
When the outdoor/suction air temperature is higher
•
than or equal to 3 °C above the set temperature.
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Execute a test run
■
When a fan operation is to be performed for an
•
individual indoor unit, turn off the power, short
circuit CN72 on the circuit board, and then turn the
power back on. (Set the operation mode to "fan"
to operate the unit.) When the test run has been
performed using this method, be sure to release the
short circuit of CN72 after the test run is completed.
Operate the unit with the remote controller 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.
– 21 –
Wired remote controller
Be sure to stop the air conditioner before making
settings.
(Change the setup while the air conditioner is not
working.)
1
Push and hold OFF timer button and
[ ] setting button simultaneously for
10 seconds or more. [TEST] is displayed
on the display part and the test run is
permitted.
2
Push ON/OFF button.
3
Push menu button to select the operation
mode. Select [ Cool] or [
[ ] [ ] setting button, and then push
menu button (three times) again to
determine the operation mode.
Do not run the air conditioner in a mode
•
other than [Cool] or [Heat].
The temperature setting function does
•
notwork during test run.
The check code is displayed as usual.
•
4
After the test run, push OFF timer button
to stop a test run.
([TEST] disappears on the display and the air
conditioner enters the normal stop mode.)
Wireless remote controller
1
When TEMPORARY button is pushed for
10 seconds or more, "Pi!" sound is heard
and the operation changes to test run.
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 test run.
TEMPORARY button
When a test run is not
performed properly
• When a test run is not performed properly, refer to
the error code and the part to be checked on
"Troubleshooting".
• When a test run is executed before installing the
external duct, a protection control may be activated
and lets the unit stop and the code P12 may be
displayed. (This is not due to a malfunction but to the
current control function of the DC motor in this unit.)
When a test run executed before installing the
Heat] with
external duct, select "Low" for the fan speed level or
cover the air discharge.
• In addition, stop the operation before replacing the
High-efficiency filter or opening the service panel.
After the test run, reset the circuit breaker of the
indoor unit.
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