6. Test run
6-4. Items to Check Before the Test Run
(1)Turn the breaker 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.
(1)Press and hold the remote controller 
button for 4 seconds or longer. Then press the 
button.
•“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 the “Table of
(4)After the test run is completed, press the 
button again. Check that “TEST” disappears from the LCD display. (This remote controller includes a function that cancels test run mode after 60 minutes have 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.
*When performing a test run using a wired remote controller, operation is possible without attaching the cas-
(“P09” will not be displayed.)
RCS-TM80BG
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 AC 230 / 208 V power is not connected to the
*If AC 230 / 208 V is accidentally applied, the indoor or outdoor unit control PCB fuse (0.5A for both indoor and outdoor units) will blow in order to protect the PCB. Correct the wiring connections, then disconnect the 2P connectors (indoor: blue, OC) (outdoor: blue, OC) that are connected to the PCB, and replace them with 2P connectors (indoor: brown, EMG) (outdoor: brown, EMG). (Refer to the figure below.) If operation is still not possible after changing the brown connectors, try cutting the varistor (VA002) (both indoor and outdoor).
(Be sure to turn the power OFF before performing this work.)
6
Indoor unit control PCB
IC8
| Outdoor unit control PCB | ||
VA002 (Varistor) | 3 – 5 HP | Varistor (black) | |
VA002 | |||
CN44 EMG |
| ||
| Terminal plug (black) | ||
|
| ||
CN40 OC |
|
| |
Fuse |
|
| |
0.5A |
| EMG (brown) connector | |
OC (blue) connector
Fuse 0.5A
Fig.
