22-32-4. 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 crankcase heater.(2) Fully open the closed valves on the liquid-tube and gas-tube sides.2-5. Test Run Using the Remote ControllerCZ-RTC5A (High-spec wired remote controller)Keep pressing the , and buttonssimultaneously for 4 or more seconds.The “Maintenance func” screen appears on the LCD display.Maintenance func1. Outdoor unit error data2. Service contact3. RC setting mode4.Test runSel. Page [ ] Confirm20:30 (THU)Press the or button to see each menu.If you wish to see the next screen instantly, press theor button.Select “4. Test run” on the LCD display and press thebutton.Maintenance func1. Outdoor unit error data2. Service contact3. RC setting mode4.Test runSel. Page [ ] Confirm20:30 (THU)Change the display from OFF to ON by pressing theor button. Then press the button.[ ] ConfirmTest runChange20:30 (THU)Test runONPress the button. “TEST” will be displayed on theLCD display.TESTSTART[ ]20:30 (THU)Press the button. Test run will be started.Test run setting mode screen appears on the LCDdisplay.TEST20:30 (THU)COOLMODESTART[ ]20:30 (THU)CZ-RTC5ACZ-RTC4 (Timer remote controller)(1)(2)(3)(4)Press the remote controller button for 4 seconds or longer.Then press the button.“ ” appears on the LCD display while the test run is in progress.The temperature cannot be adjusted when 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 FANoperation modes.NOTEThe outdoor units will not operate for approximately 3 minutes after thepower is turned ON and after operation is stopped.If correct operation is not possible, a code is displayed on the remotecontroller LCD display.(See the section “7. Self-Diagnostic Function Table and Contents ofAlarm Display” and correct the problem.)After the test run is completed, press the button again.Check that “ ” disappears from the LCD display.(To prevent continuous test runs, this remote controller includes a timerfunction that cancels the test run after 60 minutes.)* If the test run is performed using the wired remote controller, operationis possible even if the cassette-type ceiling panel has not beeninstalled. (“P09” display does not occur.)CZ-RTC4(1)(2)(3)(4)(1)(1) (4)