Test Run - Toshiba MMD-VNK502HEXE-TR Installation Manual

Air to Air Heat Exchanger with DX Coil Unit
15

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
MΩ or more exists between the terminal block of
the power supply and the earth (earthing).
If resistance of less than 1 MΩ 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.
• 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 following
the Installation Manual supplied with the outdoor
unit.
How to execute a test run
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.
47-EN
Installation Manual
Wired remote controller (NRC-01HE)
2,4
3
1,5
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].
• The temperature controlling function does not
work during test run.
• The detection of error is performed as usual.
4
Use the [ VENT FAN] button to select "
High" or " Low".
Air to Air Heat Exchanger with DX Coil Unit
5
Use the [ VENT MODE] button to select
" Auto ventilation" or " Total heat
exchanging ventilation".
6
After the test run, push button to
stop a test run.
(Display part is same as procedure 1.)
7
Push check button to cancel the test run
mode.
([TEST] disappears on the display and the
status returns to a normal.)
• If the test run is performed when the indoor /
outdoor temperature is low, the run may be
stopped for device protection. In this case, use
another air conditioner or the like to raise the
temperature to 20 °C or higher, and then
perform the heating operation.
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Installation Manual
EN
48-EN