English 1910. FIELD SETTINGS(1) Make sure the control box lids are closed on the indoor and outdoor units.(2) Field settings must be made from the remote controller and in accordance with installation condi-tions.• Settings can be made by changing the “Mode No.”, “FIRST CODE NO.” and “SECOND CODE NO.”.• The “Field Settings” included with the remote control lists the order of the settings and method of operation.10-1 Setting ceiling height• Select the SECOND CODE NO. that corresponds to the ceiling height “Table 4”.(SECOND CODE NO. is factory set to “01” for a ceiling height of less than 2.7m .)Table 410-2 Settings for options• For settings for options, see the installation instructions provided with the option.10-3 Setting air filter sign• Remote controllers are equiped with liquid crystal display air filer signs to display the time to clean air filters.• Change the SECOND CODE NO. according to “Table 5” depending on the amount of dirt or dust in the room.(SECOND CODE NO. is factory set to “01” for air filter contamination-light.)Table 510-4 Setting indoor unit number of simultaneous operation system• When using in simultaneous operation system mode, change the SECOND CODE NO. as shown in“Table 6”.(SECOND CODE NO. is factory set to “01” for Pair system (1 unit))Table 6• When using in simultaneous operation system mode, refer to “10-5 Simultaneous operation system indi-vidual setting” on page 20 section to set master and slave units separately.Ceiling height (m) Mode No. FIRST CODE NO. SECOND CODE NO.Less than 2.7 m 13 (23) 0 012.7 to 3.5 02Setting Spacing time of display air filtersign (long life type) Mode No. FIRST CODENO.SECONDCODE NO.Air filter contamination-light Approx. 2500 hrs10 (20) 001Air filter contamination-heavy Approx. 1250 hrs 02Setting Mode No. FIRST CODE NO. SECOND CODE NO.Pair system (1 unit)11 (21) 001Simultaneous operation system(2-unit) 02Simultaneous operation system(3-unit) 03Double twin multi (4-unit) 04