219-1. How to Set on PC Board1. Turn off the power breaker to halt the supply ofelectricity to the PC board.2. Open the cover of the electrical box and confirm thatthere is the indoor unit control PC board in it.When using with high static pressure mode, set theindoor unit control PC board as shown in Fig. 9-1.3. Connect the short circuit connector to the short circuitpin TP3 (2P: Yellow) of the indoor unit control board.● In the case of wired remote control setting, do notuse the short circuit connector.Table 9-2 Setting the external static pressureIndoor unit Item code7 9 12 15 18External static pressure of the rated air flowvolume0.04 0.06 0.06 in.WC10 15 15 Pa0.12 0.12 0.16 in.WC30 30 40 Pa621 5 1 43NOTE:Failure to set this parameter may result in decreased airflow andcondensation.9-2. Operating the Timer Remote Controller(CZ-RTC2)9-2-1. How to set the external static pressure1. Press and hold down the , and buttonssimultaneously for 4 or more seconds.( , the Unit No., Item Code and Detailed Datawill blink on the LCD display.)2. The indoor unit numbers in the group control will besequentially displayed whenever the Unit Selectbutton is pressed .Only the fan motor for the selected indoor unit willoperate during this time.3. Specify the “ ” item code by pressing the/ buttons for the temperature settingbuttons and confirm the values.(“ ” set at shipment )4. Press the / buttons for the time to amend thevalues for the set data.Refer to Table 9-2 and Fig. 9-2 and select a value“ ”.5. Press the button.The display will stop blinking and remain illuminated.6. Press the button. The fan motor will stopoperating and the LCD display will return to thenormal stop mode.TP6 TP3EMGCN062CHKCN063DISPCN064CN073 JP001IC010IC001TESTEXCTOC RCCN044 CN040 CN041FAN-TAPTP1T5A L250VTP6 TP3 TP1Fig. 9-1CZ-RTC2White Yellow RedTable 9-1 External static pressureType 7 9 12 15 18Standard in.WC 0.04 0.06 0.06 0.06 0.06Pa 10 15 15 15 15High static pressure in.WC 0.12 0.12 0.16 0.16 0.16Pa 30 30 40 40 40