Hunter Fan R410A Test run Test run method, Checking the state of the unit in operation, Heating

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(5) Test run

(a)Test run method

1)A test run can be initiated from an outdoor unit by using SW9 (SW2) and SW5-4 for on-site setting.

2)Models FDCVA151~251

When SW9 (press button switch) is pressed for 1 second and then released, the compressor will start operation approxi- mately 5 seconds later.

Models FDCA301~601

Press SW2 (push-button switch) for one second. The compressor will start when the button is released. The compressor will stop when 30 minutes elaps.

3)The unit will start a cooling operation, when SW5-4 is OFF, or a heating operation, when SW5-4 is ON.

4)When a test run is completed, press SW9 (SW2) (push-button switch) again for one second and then release it.

Note (1) Items in ( ) show for the FDCA 301~601.

(b)Checking the state of the unit in operation

Check discharge pressure and suction pressure, using the check joint provided inside the outdoor unit and the gas charge valve charge port. The check joint in the unit is provided on the pipe connecting the four-way valva and the heat exchanger, and these points offer different pressure measurements depending on a cooling or heating operation as summarized in the table below.

	Check joint in the unit	Gas operation valve charge port

Cooling	Discharge pressure (high pressure)	Suction pressure (low pressure)

Heating	Suction pressure (low pressure)	Discharge pressure (high pressure)

(c)Setting SW5-1, SW5-2 on-site

1)Defrost conteol switching (SW5-1)

a)When this switch is turned on, the unit will run in the defrost mode more frequentiy.

b)Please set this switch to ON, when installed in a region where outdoor temperaure falls below zero during the season the unit is run for a heating operation.

2)Snow guard fan control (SW5-2)

a)When this switch is turned on, the outdoor unit fan will run for 10 seconds in every 10 minutes, when outdoor tempera- ture falls to 3˚C or lower and the compressor is not running.

b)When the unit is used in a very snowy country, please set this switch to ON.

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Contents FDA Series Split Systems FDA Series Multi Systems Page Index Evacuation procedure EvacuationRefrigerant charging High side Low sideIndi Cation CircuitSelfdiagnosis function Check Indicator Table Indoor unit sideNo-indication E10 E16 E28 Indoor unit LED Outdoor unit LEDOutdoor unit side Wait Display sequence of error, inspection display lampTiming of error detection Recording and reset of error Procedures of trouble diagnosisError diagnosis procedures at the indoor unit side Indoor unit Outdoor unitParts layout on the indoor unit PCB Model FDT series Change by the jumper wireControl change switch SW5, SW9, SW10 Model Fden series Model Fdkn series Model Fdur series Drain motorCheck method when the error code is display Indoor unit Outdoor unitRemote controller wire Is removed Replacement indoor Unit control PCBRed LED Time flash Stays OFF Green LED Keeps flashing Approximately301~601 151~251Red LED Only case of FDT Cases of other than FDTRed LED Stays OFF Green LED Stays OFF or LightsDefective indoor unit heat exchanger thermistor Error display e6Error display Detective return air thermistor Error display Heating overload Abnormal Temperature DetectionError display Drain trouble Indoor unit heat exchanger temp. ˚CError display Error display e16 Fan motor abnormalitiesE10 Only case of FDTA501, 601 typesOnly case of Fdkn Only case of 151~251 types Display conditionsWithin a period of 1 hour Only case of 301 typeError display e28 Directive remote controller thermistor Are characteristicsDetectivie remote controller PCB Remote controller therm Replacement Detective reError diagnosis procedures at the outdoor units side Change by the jumper wire Function of DIP switches SW5 Usually all turned OFFParts layout on the outdoor unit PCB FDCVA151~251 type Change by the JA3Overcurrent Setting FDCA301~601 typePower transistor module E32 Error display Communications error during operationPower supply phases reversed Only case of 301~601 type Compressor overcurrent trouble Only case of 301~601 type E33Inverter primary current abnormal Only case of 151~251 type Error display e35 Cooling overload operation E34Pressor is stopped Error display e36 Discharge temperature errorAbnormal Temperature Detection Error display e39 Defective discharge pipe thermistor Utes100 80 CError display e42 Current cut Only case of 151~251 type Error display e40 63H1 operation Only case of 301~601 typeOpen phase at L3-phase of 52C primary side Error display e52 52C Abnormal Only case of 301~601 type E47E48 Inverter over-voltage trouble Only case of 151~251 typeInsufficient refrigerant volume E57Did it improve? Replacement Compressor Could be causingRefrigerant circuit Malfunction. IfPower transistor module including drive circuit check method Is the powerCheck abnormal operation data with the remote controller Remote controller Wired remote controller Pull the cover downward to open itRemote controller unit functions Indoor unit functions I/U FunctionFunction setting method When Function is selectedWhen I/U Function is selected Press the ON/OFF buttonChanging the remote controller’s temperature setting range Cooling Test Operation Procedure Canceling the Cooling Test OperationStarting the Cooling Test Operation Checking Operation DataSetting SW5-1, SW5-2 on-site Test run Test run methodChecking the state of the unit in operation HeatingIndication board Fden Series Fdkn SeriesWireless remote controller Page Installation of this equipment must comply with all NATIONAL, State and Local Codes