Toshiba MMD-AP0071SH-C Service Manual page 46

10
TEST RUN
Before test operation
• Before turning on the power supply, carry out the following items.
1) Using 500V-megger, check there is 1MΩ or more between the
terminal block of the power supply and the earth. If 1MΩ or less
is detected, do not run the unit.
2) Check that all the valves of the outdoor unit are fully opened.
• Never push the electromagnetic contactor to carry out a forced test operation.
(It is very dangerous because a protective device does not work.)
How to execute test operation
• To carry out a fan operation in a single indoor unit, turn off the power once, short CN72 on P.C. board, and then
turn on the power again. (Start the unit in FAN mode.) In this case, do not forget to clear short-circuit of CN72 after
test operation.
• Using the remote controller, check the operation in the usual operation. For the operation procedure, refer to the
attached Owner's Manual.
A forced test operation can be executed in the following procedure under condition of thermo-OFF of room
temperature.
In order to prevent a serial operation, the forced test operation is released after 60 minutes and returns to the
usual operation.
NOTE
Do not use a forced operation in cases other
than test operation because it applies an
excessive load to the air conditioner.
In case of wired remote controller
Procedure
TEST
Keep button pushed for 4 seconds or more.
1
[TEST] is displayed on the display part and the selection of mode in
the test mode is permitted.
2 ON / OFF
Push button.
MODE
Using button, select the operation mode, [COOL] or [HEAT].
• Do not run the air conditioner in a mode other than [COOL] or [HEAT].
3
• The temperature controlling function does not work during test
operation.
• The detection of error is performed as usual.
ON / OFF
After the test operation, push button to stop the operation.
4
1
(Display part is same as procedure )
TEST
Push button to cancel (release from) the test operation mode.
5
([TEST] disappears on the display part and the status returns to a
normal stop status.)
WARNING
To protect the compressor at
starting time, keep power-ON
condition before 12 hours or more.
TEMP. ON / OFF
2, 4
TIMER SET FAN MODE
TIME SWING/FIX VENT
FILTER
RESET TEST SET CL UNIT
1, 5
Description
TEST
In case of wireless remote controller
Procedure
Remove a small screw which fixes the nameplate of the receiver unit.
1
Remove the nameplate of the sensor section by inserting a minus screwdriver, etc into the notch at the bottom
of the plate, and set the Dip switch to [TEST RUN ON].
Execute a test operation with
• , , and LED flash during test operation.
2
• Under status of [TEST RUN ON], the temperature adjustment from the wireless remote controller is invalid.
Do not use this method in the operation other than test operation because the equipment is damaged.
Use either COOL or HEAT operation mode for a test operation.
3
* The outdoor unit does not operate approx. 3 minutes after power-ON and operation stop.
After the test operation finished, stop the air conditioner from the wireless remote controller, and return Dip
switch of the receiver section as before.
4
(A 60-minutes timer clearing function is attached to the receiver section in order to prevent a continuous test
operation.)
3
M4 × 25 screw
(2 pieces)
Notch
Small screw
Description
button on the wireless remote controller.
Receiver unit
Spacer
Nameplate