English 19Table 4When using wireless remote controllers• When using wireless remote controllers, wireless remote controller address setting is necessary. Refer tothe installation manual attached to the wireless remote controller for setting instructions.10-4 CONTROL BY 2 REMOTE CONTROLLERS (CONTROLLING 1 INDOOR UNIT BY 2REMOTE CONTROLLERS)• When using 2 remote controllers, one must be set to “MAIN” and the other to “SUB”.MAIN/SUB CHANGEOVER(1) Insert a screwdriver into the recess between the upper and lower part of remote controller and, work-ing from the 2 positions, pry off the upper part. (The remote controller PC board is attached to the upperpart of remote controller.) (Refer to Fig. 31)(2) Turn the main/sub changeover switch on one of the two remote controller PC boards to “S”. (Leave theswitch of the other remote controller set to “M”.) (Refer to Fig. 32)Wiring Method (See “ELECTRIC WIRING WORK”)(3) Remove the control box lid.(4) Add remote controller 2 to the terminal block for remote controller (P1, P2) in the control box.(There is no polarity.) (Refer to Fig. 29 and table 8-3)10-5 COMPUTERISED CONTROL (FORCED OFF AND ON/OFF OPERATION)(1) Wire specifications and how to perform wiring• Connect the input from outside to terminals T1 and T2 of the terminal board for remote controller.Setting 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 02Wire specification Sheathed vinyl cord or cable (2 wire)Gauge 0.75–1.25 mm 2Length Max. 100 mExternal terminal Contact that can ensure the minimun applicableload of 15V DC, 10 mAUpper part ofremote controllerLower part ofremote controllerInsert the screwdriverhere and gently workoff the upper part ofremote controller. Fig. 31MSMSRemotecontrollerPC board(Factory setting)(Only one remotecontroller needsto be changed iffactory settingshave remaineduntouched.) Fig. 32FORCEDOFFT2T1F2Input A