Daikin 2MXS18GVJU Installation Manual

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Contents

Daikin 2MXS18GVJU Installation Manual Manual pdf 13 page image

Test Run and Final CheckWiring errorcheck switch(SW3)Service PC-boardLEDStatus1 2 3 4All Flashing Automatic correction impossibleAutomatic correction completedAbnormal stop [NOTE. 4]MessageFlashingOne after another OFF [NOTE.1](One or more of LEDs 1 to 4 are ON)Terminal blockWiring error checkLED lighting sequence after a wiring correction.Order of LED flashing: 2 ➝ 1From Room Bto the “living room”From Room Ato the “bedroom”Wiring correct example∗ The figure at left shows branch wiring.(1) LED 3 and 4 are not displayed.(2) If the outside air temperature is 41°F or less , the wiring error check function will not operate.(3) After wiring error check operation is completed, LED indication will continue until ordinary operation starts.This is normal.(4) Follow the product diagnosis procedures. Check the nameplate on the stop valve cover.NOTE● Before starting the test run, measure the voltage at the primary side of the safety breaker.● Check that all liquid and gas stop valves are fully open.● Check that piping and wiring all match. The wiring error check can be conveniently used for underground wiring andother wiring that cannot be directly checked.Wiring error check● This product is capable of automatic correction of wiring error.Press the “wiring error check switch” on the outdoor unit servicemonitor print board. However, the wiring error check switch will notfunction for one minute after the safety breaker is turned on, ordepending on the outside air conditions (See NOTE 2.). Approximately10~15 minutes after the switch is pressed, the errors in theconnection wiring will be corrected.The service monitor LEDs indicate whether or not correction ispossible, as shown in the table below. For details about how to readthe LED display, refer to the service guide.If self-correction is not possible, check the indoor unit wiring andpiping in the usual manner.

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