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10-4. Items to Check Before the Test Run
(1) Turn the remote power switch ON at least 12 hours in
advance in order to energize the crank case heater.
(2) Fully open the closed valves on the liquid-tube and gas-
tube sides.
10-5. Test Run Using the Remote Controller
(1) Press and hold the remote controller
seconds or longer. Then press the
●
"TEST" appears in the LCD display during the test run.
●
Temperature control is not possible when test run mode
is engaged.
(This mode places a large load on the devices. Use it
only when performing the test run.)
(2) Use either Heating or Cooling mode to perform the test
run.
Note: The outdoor unit will not operate for approximately 3
minutes after the power is turned ON or after it stops
operating.
(3) If normal operation is not possible, a code appears on the
remote controller LCD display.
Refer to "10-7. Table of Self-Diagnostic Functions and
Corrections", and correct the problem.
(4) After the test run is completed, press the
Check that "TEST" disappears from the LCD display.
(This remote controller includes a function that cancels test
run mode after a 60-minute timer has elapsed, in order to
prevent continuous test run operation.)
(5) For the test run of an inverter outdoor unit, operate the
compressors for a minimum of 10 minutes (in order to
check for open phase).
* When performing a test run using a wired remote control-
ler, operation is possible without attaching the cassette-
type ceiling panel.
("P09" will not be displayed.)
Big_PAC_eng.indb 46
Big_PAC_eng.indb 46
10-6. Precautions
● Request that the customer be present when the test run is
performed. At this time, explain the operation manual and
have the customer perform the actual steps.
● Be sure to pass the manuals and warranty certificate to the
customer.
● Check that the 220 – 240 V AC power is not connected to
the inter-unit control wiring connector terminal.
button for 4
* If 220 – 240 V AC is accidentally applied, the indoor or out-
button.
door unit control PCB fuse will blow in order to protect the
PCB. Correct the wiring connections, then disconnect the
2P connectors that are connected to the PCB, and replace
them with 2P connectors.
If operation is still not possible after changing the brown con-
nectors, try cutting the varistor.
(Be sure to turn the power OFF before performing this work.)
Indoor unit control PCB
Varistor (black)
VA100
Fuse 0.5A
button again.
Outdoor unit control PCB
8 – 10 HP
63PH (CN027, WHT)
FUSE (0.5A, F500)
EXCT
(CN030, RED)
RC P
(CN039, RED)
IC002
FUSE
(6.3A, F101)
CTL2
(CN202, GRN)
CTL1
(CN203, GRN)
N . P . C H E C K
(CN046, RED)
R.C.ADD. Rotary switch
46
CHK (2P plug)
2P connector (brown)
2P connector (blue)
OC (CN500, BLU)
EMG (CN502, BRN)
SILENT (CN037, WHT)
PUMP DOWN (CN048)
TEMINAL (CN205, BLK)
C2 (CN020, WHT)
LED2
TEST (CN033, RED)
LED1
C-CHK (CN035)
A.ADD (CN047)
MODE (CN038)
R.C.ADD. DIP switch
IC001
D115
C1 (CN021, WHT)
TS (CN022, RED)
TO (CN023, BLK)
TD (CN024, BLK)
MOV1
(CN300, WHT)
MOV2
(CN301, BLK)
LED (D041)
EEPROM
Fig. 10-4
2009/08/26 16:33:19
2009/08/26 16:33:19
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