Cooling/Heating Test Operation Check; Wired Remote Control - Carrier MMY-MAP0724FT9UL Service Manual

8-6-2. Cooling/heating test operation check

The cooling/heating test operation check can be performed on both the indoor remote control and the outdoor
header unit interface PC board.
(1) Test operation start/stop operation
Test operation from the indoor remote control
• Wired remote control: Refer to the items below in "Test operation" of the wired remote control.
• Wireless remote control: Refer to the items below in "Test operation" of the wireless remote control.

Wired remote control

Procedure
When the Test button is pushed for 4 seconds or
more, "TEST" is displayed in the display section,
and the unit enters test operating mode.
1
2
Push the
Using the Select Mode button, select the
" COOL" or "
• Do not use an operating mode other than
" COOL" or "
• Temperature adjustment is unavailable during
test operation.
3
• Error is detected as usual.
When the test operation has finished, push the
button to stop the operation.
4
(The same display as in procedure 1 appears in
the display section.)
Push the Test button to clear the test operating mode.
("TEST" disappears from the display section, and
the status returns to the normal stopped status.)
5
1, 5
Operation content
button.
HEAT" operating mode.
HEAT".
2, 4
3
Wireless remote control (Except the 4-way
Cassette type and the Ceiling type)
Procedure
Remove the nameplate of the receiver section by
inserting a screwdriver or similar tool into the
1
notch at the bottom of the plate, and set the DIP
switch to "TEST RUN ON."
Execute a test operation with the
wireless remote control.
• The "
operation.
• Under "TEST RUN ON" status, temperature
2
adjustment from the wireless remote controller
is invalid.
Do not use this method of operation other than for
test operation because the equipment will be
damaged.
Use either the "
operation mode for a test operation.
3
* The outdoor unit does not operate for
approximately 3 minutes after powering-on or
stopping operation.
After the test operation is finished, stop the air
conditioner from the wireless remote controller,
and return the DIP switch of the sensor section to
4
its original position.
(A 60-minute timer clearing function is attached to
the sensor section in order to prevent continuous
test operation.)
Receiver unit
M4 × 25 screw
(2 pieces)
Notch
Small screw
– 108 –
Operation content
", " " and " " LEDs blink during test
COOL" or "
Spacer
Nameplate
button on the
HEAT"