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(2) Outdoor Unit
Test run by outdoor unit SW4
The setting of test run (ON/OFF) and its operation mode (cooling/heating) can be set by SW4 on the controller board of out-
door unit.
1Set operation mode(cooling or heating) by SW4-2.
2Start test run by setting SW4-1 to ON (
3Finish test run by setting SW4-1 to OFF (
• Operation mode cannot be changed by SW4-2 during test run.
Stop test run to change operation mode by SW4-1, and restart test run by SW4-1 after
the mode is changed.
• Test run automatically stops 2 hours later by 2-hour OFF timer function.
• Test run can be performed by the remote controller.
• The remote controller display of test run by outdoor unit is the same as that of test run by
remote controller.
• There may be a small clicking sound near the compressor after power is supplied, but this is not a malfunction. The linear
expansion valve is working in order to adjust its opening pulse.
• There may be a clanging sound near the compressor for a couple of seconds after the compressor gets started, but this is
not a malfunction. The valving element of the check valve emits this sound because the pressure difference in pipes is small.
w w Operation mode cannot be changed by SW4-2 during test run.
(If it's necessary to change the operation mode, stop the test run by SW4-1. Then restart the test run by SW4-1
after changing the operation mode.)
11-4. Emergency Operation
(1) Indoor unit
1. When the wired remote controller or indoor unit micro computer troubles if there is not any other wrong, emergency opera-
tion starts as the indoor control board switch (SWE) is set to ON.
During the emergency operation the indoor unit is as follows;
(1) Indoor fan high speed operation
w When the remote controller cannot be used for the wireless remote controller, emergency operation is available by
operating the emergency operation switch (SW1/SW2 in the wireless remote controller receiving p.c/board) in the
indoor unit.
2. When emergency operating for COOL or HEAT, setting of the switch (SWE) in the indoor control board and outdoor unit
emergency operation are necessary.
3. Check items and notices as the emergency operation
(1) Emergency operation cannot be used as follows;
• When the outdoor unit is something wrong.
• When the indoor fan is something wrong.
• When drain over flow protected operation is detected during self-diagnosis. (optional drain up mach.)
(2) Emergency operation will be serial operation by the power supply ON/OFF.
ON/OFF or temperature, etc. adjustment is not operated by the remote controller.
(3) Do not operate for a long time as cold air is blown when the outdoor unit starts defrosting operation during heat
emergency operation.
(4) Cool emergency operation must be within 10 hours at most. It may cause heat exchanger frosting in the indoor unit.
(5) After completing the emergency operation, return the switch setting, etc. in former state.
(6) As for PLA-RP·AA Type series, since vane does not work at emergency operation position the vane manually and slowly.
) with the indicated operation mode of SW4-2.
).
(2) Drain pump. (only provided model)
89
(Factory setting)
SW4
C D
A Stop
ON
B Cooling
C Operation
D Heating
1 2
A
B
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