Daikin FXFQ12MVJU Installation Manual

Also see for FXFQ12MVJU: Serivce manual Serveice manual Service manual Design, Installation & Testing Instruction Engineering data

Contents

Daikin FXFQ12MVJU Installation Manual Manual pdf 13 page image

12NOTE1. A single switch can be used to supply power to units on thesame system. However, branch switches and branch circuitbreakers must be selected carefully.2. Do not ground the equipment on gas pipes, water pipes orlightning rods, or crossground with telephones. Impropergrounding could result in electric shock.10-3 CONTROL BY 2 REMOTE CONTROLLERS(Controlling 1 indoor unit by 2 remote control-lers)• When using 2 remote controllers, one must be set to “MAIN”and the other to “SUB”.MAIN/SUB CHANGEOVER(1) Insert a screw driver into the recess between the upperand lower part of remote controller and, working from the 2positions, pry off the upper part.The remote controller PC board is attached to the upperpart of remote controller.(2) Turn the MAIN/SUB changeover switch on one of the tworemote controller PC boards to “S”.(Leave the switch of the other remote controller set to “M”.)10-4 COMPUTERISED CONTROL (FORCED OFFAND ON/OFF OPERATION)(1) Wire specifications and how to perform wiring• Connect the input from outside to terminals T1 and T2 ofthe terminal block for remote controller.(2) Actuation• The following table explains FORCED OFF and ON/OFFOPERATIONS in response to Input A.(3) How to select FORCED OFF and ON/OFF OPERATION• Turn the power on and then use the remote controller toselect operation.10-5 CENTRALIZED CONTROL• For centralized control, it is necessary to designate the groupNo. For details, refer to the manual of each optional control-lers for centralized control.10-6 Setting air filter sign• Remote controllers are equiped with liquid crystal display airfiler signs to display the time to clean air filters.• Change the SECOND CODE NO. according to Table 5depending on the amount of dirt or dust in the room.(SECOND CODE NO. is factory set to “01” for filter contam-ination-light)Table 3〈When using wireless remote controllers〉• When using wireless remote controllers, wireless remotecontroller address setting is necessary. Refer to the installa-tion manual attached to the wireless remote controller forsetting instructions.11. FIELD SETTINGMake sure the terminal box lids are closed on the indoorand outdoor units.Field setting must be made from the remote controller inaccordance with the installation condition.• Setting can be made by changing the “Mode No.”, “FIRSTCODE NO.”, and “SECOND CODE NO.”.• For setting and operation, refer to the “FIELD SETTING” inthe installation manual of the remote controller.• Set the remote controller to the field set mode. Fordetails, refer to the “HOW TO SET IN THE FIELD”, in theremote controller manual.• When in the field set mode, select mode No. 12, then setthe first code (switch) No. to “1”. Then set second code(position) No. to “01” for FORCED OFF and “02” for ON/OFF OPERATION. (FORCED OFF at factory set)Wire specification Sheathed vinyl cord or cable (2 wire)Gauge AWG 18-16Length Max. 328ft.External terminal Contact that can ensure the minimum appli-cable load of 15 V DC, 10 mA.FORCED OFF ON/OFF OPERATIONInput “ON” stops operation (impossible byremote controllers.)Input OFF → ON turnsON unit.Input OFF enables control by remote con-troller.Input ON → OFF turnsOFF unit.SettingSpacing time ofdisplay airfilter sign(long life type)ModeNo.FIRSTCODENO.SECONDCODENO.Air filtercontamination-lightApprox. 2500 hrs10(20) 001Air filtercontamination-heavyApprox. 1250 hrs 02

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