Hunter Fan R410A manual Evacuation procedure

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1.MAINTENANCE DATA

1.1 Servicing

(1)Evacuation

The evacuation is a procedure to purge impurities, such as noncondensable gas, air, moisture from the refrigerant equipment by using a vacuum pump. Since the refrigerant R410A is very insoluble in water, even a small amount of moisture left in the refriger- ant equipment will freeze, causing what is called ice clogging.

Evacuation procedure

 

Make sure that the both service valves of gas and liquid line are fully opened.

Indoor unit

(a) Check to ensure that there is no internal pres-

 

sure in the unit. If there is an internal pres-

 

sure, it should be relived through the service

 

port.

 

 

 

Gus line

 

 

 

 

 

 

 

 

(b) Connect the charging hose of the gauge mani-

 

Outdoor unit

 

 

 

 

 

 

fold to the service port of the gas piping.

 

 

Liquid line

 

Close high pressure valve 2 of gange mani-

 

Charge port

 

 

 

 

 

 

fold.

 

 

 

 

Gauge manifold

 

 

 

 

 

 

 

(c) Connect the charging hose A to a vacuum

 

 

(for R410A only)

 

 

 

 

 

pump.

 

 

 

1

2

Handle Hi

Repeat evacuation in the following sequence.

 

 

 

Charge hose A

 

Vacuumingcompleted

 

 

 

 

(for R410A only)

 

 

Vacuum gauge check

Handle Lo

 

 

Please run the

No increase in the

Charge hose

 

 

vacuum pump for at

reading of the

(for R410A only)

 

3

least one hour after

vacuum gauge's

 

 

Charge valve

Vacuum

Refrigerant

the vacuum gauge

needle pointer.

cylinder

Vacuum adapter

pump

shows -101kPa or

 

(for R410A only)

 

 

beginsVacuuming

 

 

 

 

lower. (-755mmHg or

 

 

 

 

 

 

lower)

 

 

 

 

 

 

 

 

 

 

Notes (1) Refer to the exterior-view drawing for the position of the service valve.

When the vacuum gauge's needle pointer creeps up, there is moisture left in the system or a leak. Pull air again after you have checked the system for a leak and rectified it. Use a reverse flow stop adapter to prevent the vacuum pump's lubricant oil from flowing into the refrigerant system.

Notes (1) Do not use the refrigerant pressure to expel air.

(2)Do not use the compressor for evacuation.

(3)Do not operate the compressor in a vacuum condition.

(2)When connecting of ther service valve, flare connection for both the indoor and outdoor unit.

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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 Timing of error detection Display sequence of error, inspection display lampWait Recording and reset of error Procedures of trouble diagnosisError diagnosis procedures at the indoor unit side Indoor unit Outdoor unitControl change switch SW5, SW9, SW10 Change by the jumper wireParts layout on the indoor unit PCB Model FDT series 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 ApproximatelyRed LED 151~251301~601 Only case of FDT Cases of other than FDTRed LED Stays OFF Green LED Stays OFF or LightsError display Detective return air thermistor Error display e6Defective indoor unit heat exchanger 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 Power supply phases reversed Only case of 301~601 type Error display Communications error during operationE32 Inverter primary current abnormal Only case of 151~251 type E33Compressor overcurrent trouble Only case of 301~601 type Error display e35 Cooling overload operation E34Abnormal Temperature Detection Error display e36 Discharge temperature errorPressor is stopped Error display e39 Defective discharge pipe thermistor Utes100 80 COpen phase at L3-phase of 52C primary side Error display e40 63H1 operation Only case of 301~601 typeError display e42 Current cut Only case of 151~251 type 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
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