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3. Remote Controller Servicing Functions
<Procedure of CZ-RTC4>
1 Press and hold the
longer.
2 "
" appears on the remote controller LCD
display (Fig. 3-8).
3 Press the
button to start the test run.
• The temperature cannot be adjusted in Test Run mode.
(This mode places a heavy load on the machines.
Therefore use it only when performing the test run.)
• The test run can be performed using the HEAT, COOL,
or FAN operation modes.
The outdoor unit will not operate for
approximately 3 minutes after the power
is turned ON and after operation is stopped.
• If correct operation is not possible, an error code is
displayed on the remote controller LCD display.
4 Press the
button to return to normal remote controller display.
• To prevent continuous test runs, this remote controller includes a timer function that cancels the test run after
60 minutes.
• The operation is possible even if the cassette-type ceiling panel has not been installed.
("P09" display does not occur.)
button for 4 seconds or
1
5 - 51
VRF SYSTEMS Indoor Unit
°
°
A
4
Fig. 3-8
2
3
5
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