KOLDWAVE Portable Air CondiƟoners 6KK14BEA2AA SERVICE
Contents
1. 6666 _ Circuit Breaker GE 9000 o 6 6KK14BEA2AA Back Cover Panel dl 550606506 855050 eee REY NNN NNN NNN 85505505960 850595056 9666 RELAY crews 12 SCH 7 2222 02220 2222 22 Ma of 2 D Connector KOLDWAVE Service Manual 6 Take out the twelve 12 screws and then remove the back cover panel 7 Take out the twelve 12 screws and then remove the upper panel 8 Unfasten the connector from the control panel and then remove the front panel page 31 KOLDWAVE Service Manual Screws 2 E x yuy luy af nn ayy VI 222 gt Screws 2 P 22 E Screws 7 7 My My yp uy OP Right Side Panel Sch left Side Par 32 page 6KK142. KOLDWAVE KOLDWAVE Portable Air Conditioners 6KK14BEA2AA SERVICE MANUAL KOLDWAVE Service Manual 6KK14BEA2AA Table of Contents GENERAL DESCRIPTION eege eege EEN 4 General air conditioning system Portable air conditioning system SPECIFIC ATION VE 5 Exterior Dimension Diagram Technical Specifications Characteristics CONSTRUCTION BEE 7 Internal Structure REFRIGERANT SYSTEM CONSTRUCTION E VR Vra aaa 8 Compressor Compressor lubrication Condenser Capillary Tube Evaporator Accumulator ELECTRICAL BC CHE 13 Circuit Diagram Control panel Program Setting Controller Board Control Specifications Self Diagnostic Codes Compressor Evaporator Fan Motor Condenser Fan Motor Capacitor Molded Case Circuit Breaker Magnetic Contact Thermal Relay Temperature Thermistor Drain Tank Switch 2 page 6KK14BEA2AA ASSEMBLY Component parts General Safety Information Troubleshooting chart dee Disassembly Control panel removal Electrical parts and relay board removal Fan motor removal REFRGERANT SYSTEM Brazing Removal of Refrigerant System Components Charging the System with R 410A Refrigerant Refrigerant Charging Work KOLDWAVE Service Manual 26 30 page 3 KOLDWAVE Service Manual GENERAL DESCRIPTION General air c
3. On Between 10 On Activates Defect control Tank Full Switch to 20 mA at DC12 Contact Normally closed LED V Off signal shows FT Output signal ON KOLDWAVE 6KK14BEA2AA Service Manual Control Specifications 1 EVAPORATOR FAN MOTOR When the BLOWER button is pressed the RL1 3 fan motor HI LOW relay on the relay board turns on operating the fan Specifications RL1 3 Fan motor HI LOW relay output 10 A at AC 250 V 2 Compressor start control When the ON OFF button is pressed the RL4 relay on the relay board turns on operating the compressor Specifications RL4 Compressor On Off relay output 5 A at 250 V 3 Anti freeze control e Anti freeze controls turns the compressor on and off by turning the relay on in accordance with the freeze protection thermistor TH3 temperature As a result decreases in cooling performance due to frost buildup on the evaporator are prevented Compressor off conditions Freeze protection thermistor TH3 temperature lt 28 4 F 2 Compressor on recovery conditions TH3 ICE temperature gt 33 8 F 1 C JI 28 4 33 8 F temperature 2 1 C Evaporator out temperature page 19 KOLDWAVE Service Manual 6KK14BEA2AA 4 Compressor time delay control compressor protection Compressor protection consists of a time delay program within the microproces sor Thi
4. Figure 4 on the top of air conditioner 3 Use screws enclosed inside of box with the top fan exhaust flange to install the top fan exhaust flange on air conditioner as shown in Figure 5 cooling efficiency 1 Remove the Filter A bolts 6EA as Figure 7 Figure 6 AMBIENT AIR ADAPTER Optional An ambient air adapter can be purchased separately Air adapter fits over the condenser to duct condenser air to the unit to improve DISCHARGE DUCTS SUPPLY AIR DUCT 1 Remove cool air outlet hose s from carton 2 Place the cool air outlet hose s on the front top of air conditioner 3 Use screws enclosed inside of box with cool air outlet hose s to install the cool air outlet hose s on the air conditioner as shown in Figure 4 EVAPORATOR PLENUM Optional An evaporator plenum can be purchased separately Plenum fits over the evaporator to duct evaporator air to the unit to improve cooling efficiency 1 Remove the evaporator cover from the unit 2 Remove the filter from the evaporator cover and put it into the plenum 3 Install the plenum in front of the evaporator 2 Check the Filter C is inserted properly in Intake Warm Air Duct B 3 Install B which contains C by using driver with enclosed KOLDWAVE 6KK14BEA2AA Service Manual General Safety Information Please read this manual carefully for instructions on cor
5. Discharge 3 Discharge 1 The pressure in the cylinder exceeds that in the discharge chamber and the dis charge valve opens 2 On the suction side refrigerant suction continues 4 Completion of compression 1 When compression is completed all of the refrigerant has been drawn from the Discharge suction chamber Valve 2 Operation then returns to step 1 Start of compression and the above process of suction and compression continues repeatedly in succession 10 page 6KK14BEA2AA Compressor lubrication The lubrication system is comprised of a hollow shaft an oil scraper mounted at the end face hollow shaft a shaft journal shaft bearing and the lubrication groove for the shaft journal The lubrication groove is wider than the oil hole When the shaft turns oil is scraped upward by the oil scraper along the inside diameter of the hollow shaft The oil is fed through the oil hole by centrifugal force then supplied to the lubrication groove for each shaft journal lubricating the bearing In this lubrication system oil enters into each bearing separately and returns to the oil reservoir This system effectively pre Hole vents bearing temperature increases and offers high reliability In addition the specially treated shaft jour nal keeps the bearing from being damaged during high temperature operation Hollow Shaft Cylinder Oil Feed Groove Condenser 1 The condenser is a heat e
6. IAU Ge mn Drain Tank Locking Swivel Caster G Caster Rear page 7 KOLDWAVE Service Manual 6KK14BEA2AA REFRIGERANT SYSTEM CONSTRUCTION Condenser Evaporator Capillary tube Accumulator Compressor 8 page KOLDWAVE 6KK14BEA2AA Service Manual Compressor The construction of a rotary type compressor is divided into two mechanisms the drive mechanism compressor motor and the compression mechanism compres sor When the rotor shaft of the motor drive mechanism turns the roller com pression mechanism rotates to compress the refrigerant To Condenser From Evaporator Accumulator Stator Strainer SI YSS S Rotor ZZ ASLI Cylinder Ww Roller RQ QW SS Lubricator page 9 KOLDWAVE Service Manual 6KK14BEA2AA Compressor operation 1 Start of compression 1 The cylinder is filled with low pressure gas 2 Since pressure in the discharge chamber is higher than in the cylinder the dis charge valve is kept closed Discharge Roller 2 Suction and compression 1 The pressure in the cylinder increases gradually 2 Refrigerant suction begins on the suc tion side of the cylinder 3 The discharge valve remains closed
7. Current Amps 11 9 EER Btu Wh 11 0 Circuit Breaker Size Amps 16A Nema Plug Type 5 15P Power Cord Gauge Awg 12 Power Cord Length ft 10 Dimensions Wx Hx D In mm 20 6 x 26 4 x 41 523 x 671 x 1042 Weight Net Gross Lbs kg 185 200 Ibs 84 91 kg Condensate tank Gallons Liters 3 17 12 No of Cool Air Outlets Pcs 2 Ambient temperature range 64 113 18 45 Setting temperature Room cool mode 64 86 18 30 Setting temperature Spot mode 32786 0730 Application Area Room cool mode ft m 355 33 Refrigerant 02 6 28 9 820 Design Pressure Hi Low Psig 440 156 Indoor Air Flow High Low CFM CMM 470 400 13 3 11 3 Wheels diameter 76 mm Hot Air Duct Diameter In mm 12 300 Maximum Duct Length ft m 50 15 Compressor overload protector Anti freezing thermister Full drain tank switch Autometic restart Power interruption Compressor time delay program High pressure switch Safety Devices Temperature control Self diagnostic function Two sppeds fan Optional drain pump kit Washable filters display Wee 6 page KOLDWAVE 6KK14BEA2AA Service Manual CONSTRUCTION Internal Structure Cooling Air Duct Control Panel Motor Scroll Eva Filter e A Lo Control NU e Relay Board e Capacitor
8. TH2 IN TEMP SEN2 SENSOR 254 192 SENSOR ICE TEMP ICE TEMP SEN3 SENSOR e 183 SENSOR PS PRESSURE el PS COM SWITCH PS 76 os HIGH PRESSURE LOW PRESSURE SWITCH opt DRAIN FD am SWITCH option 21 FD option ER mem fee COM SWITCH FT ess L E 6 RM POWER BLOWER SPOT COOL ROOMICOOL page 13 KOLDWAVE Service Manual 6KK14BEA2AA Control panel Before operating the unit it is important to be familiar with the basic operation of the control panel POWER BUTTON Activates unit when POWER BUTTON is pressed Fan starts on low speed f POWER BUTTON is pressed during operation unit stops BLOWER BUTTON Changes fan speed from LOW to HIGH when pressed SPOT COOL BUTTON Activates compressor and begins producing cool air 5 seconds after button is pressed Regulates temperature based on outlet cool air temperature ROOM COOL BUTTON Activates compressor and produces cool air 5 seconds after button is pressed Regulates temperature based on inlet ambient air temperature 14 page KOLDWAVE 6KK14BEA2AA Service Manual 5 SET TEMP BUTTON Change target temperature data value by 1 e Change data value by 10 by pressing continually Press the SET TEMP BUTTONS to set temperature Upper button is to heighten temperature and Lower
9. the suction gas pip ing between the evaporator and the compressor The accumulator separates the liquid refrigerant from the gas refrigerant allowing only the gas refrigerant to enter the compressor In the accumulator suction gas isled into a cylindrical vessel where the speed of the gas is decreased This process separates the refrigerant contained in the gas by the force of gravity causing the refrigerant to accumulate at the bottom of the vessel As a result the compressor is protected from possible damage caused by liquid refrigerant intake From Evaporator 4 To Compressor lt 12 page 6KK14BEA2AA ELECTRICAL SYSTEM Circuit Diagram KOLDWAVE Service Manual REMOTE DATA CABLE CABLE GURRENTTEMP TAR MB L E POWER T 1 1 615 L 115V 5 POWER N 1 t e 63 N 1P AC 208 230 COMP COM B MC 1 OGR 1 os i CONTROL e 4 R o BOARD CT 42 5 Comp 2 COM Overload Jeilt E H L H H L FAN L com Motor COM 55 Motor _ THI OUT TEMP 181 OUT_TEMP i SEN SENSOR e TH 1 SENSOR 2 IN TEMP
10. BEA2AA 9 Take out the two 2 screws Unfas ten two 2 screws to a half point and then remove the low cover panel 10 Remove the air filter from the side panel Take out the seven 7 screws and then remove the right side panel 11 Take out the five 5 screws and then remove the left side panel koLDwAVE 4 2 Service Manual Control Panel Removal 1 Take out the four 4 screws and then remove the control panel Control Panel page 33 KOLDWAVE Service Manual 6KK14BEA2AA Electrical parts and relay board removal f oL ili MCCB Mold Current Braker PE P hm a 0 2 PP j mn Capacitor for Compressor n Capacitor for Condenser Motor 34 KOLDWAVE 6KK14BEA2AA Service Manual Control Box Capac
11. Delay time setting of COMP operation L setting is 3mins it takes 3mins to be ON after COMP is OFF Deviation temp setting 1 5minutes control is available per 1 minute operates between 30 to 34 c 2 dF setting is 1c 5c I 2 under 32 temp setting Temperature Correction 10c 10 Temperature Correction 10c 10 IF IC temperature setting 55 IL Frost prevention sensor KOLDWAVE 6KK14BEA2AA Service Manual Relay Board The relay board contains the compressor and fan on relays in addition to a step down transformer that converts the line voltage GKK14BEA2AA 115 VAC to 12V This voltage is then converted from AC to DC and used for relay coil activation The 12 V DC power is sent to the control panel assembly 1 Power supply requirements The 6KK14BEA2AA requires a single phase 115 V 60 Hz power supply 2 Relay board fuse The relay board fuse is the only serviceable component on the relay board assem bly This fuse provides protection against damage to the step down transformer The fuse must be replaced with the exact same part or a suitable equivalent Specifications 3 15 A 250 VAC CAUTION Failure to use the exact same fuse may result in damage to the unit and or components and will also void the unit warranty page 17 KOLDWAVE Service Manual 6KK14BEA2AA 3 Input Signal The relay board receives inputs from the con
12. button is to lower temperature ALARM Alarm indicator light blinks and indicates abnormal system operation f Alarm occurs compressor stops e System operation stops when ALARM light is activated blinking longer than 3 minutes CURRENT TEMP e Room cool mode displays current room temperature in display in Fahrenheit SPOT COOL Mode displays outlet cool air temperature during normal operations In order to change F to C press SPOT COOL and ROOM COOL buttons together for 2 seconds e C will blink 2 times and the figure will change to C ALARM codes blink and are displayed when abnormal operation occurs TARGET TEMP Displays the unit set temperature for ROOM COOL mode only NOTE The room temperature display range is from 14 F to 122 F When displayed in C the range is from 10 C to 50 page 15 koLDwAVE Service Manual Program Setting Temperature Setting 6KK14BEA2AA Program Setting Auto restored when no setting is made in each mode Target Temperature Power Switch ON OFF when keep depressing more than 1 seconds Keep I depressing EI more than Temperature 3 seconds dependence Delay time l om 4 Change gt temperature IC temperature setting i e St Change Auto restored when setting is made in each mode dy DEE 8 n Indication Description the range of setting
13. e filter is dirty and not regularly cleaned 2 Compressor will not work if the unit isturned off and on quickly 3 The ambient air tempera ture may be too high No cause Spring is possibly broken Remove blockage from drain hose Remove any object stuck undeerneath of the black panel nuder the water tank Reset the circuit breaker and restart the unit Connect power cord Clean the filter Wait 2 minutes after unit is turned off before turning the unit back on The temperature of the compressor can be higher when the ambient tem perature is too high The compressor will not work unless the ambient air temperature is within the acceptable operating range of the unit Common to hear coolant flowing after unit shuts off Replace a new spring page 29 KOLDWAVE Service Manual DISASSEMBLY Disassembly 6KK14BEA2AA 1 Remove the drain tank 2 Remove two 2 support lines and remove front panel 3 Take out the eight 8 screws and then remove the cooling air duct JG 4 74 2 Jg 1 2 2222 a A A zm 722 22 j Front Panel Drain Tank 4 Take out the four 4 screws and then remove the service panel 5 Off the circuit breaker For safety
14. e observed Always wear proper eye protection while handling refrigerant Maintain the temperature of the refrigerant container below 104 F 40 C Perform repairs in a properly ventilated area Never in an enclosed environ ment Do not expose refrigerant to an open flame Never smoke while performing repairs especially when handling refrigerant Be careful the liquid refrigerant does not come in contact with the skin If liquid refrigerant strikes eye or skin Do not rub the eye or the skin Splash large quantities of cool water on the eye or the skin Apply clean petroleum jelly to the skin Go immediately to a physician or to a hospital for professional treatment page 39 KOLDWAVE Service Manual Connection of gauge manifold 1 Properly remove the crushed end of the pinch off tube at the high pressure side and the low pressure side of the refrigerant cycle with a pipe cutter 2 Fit the process tube fitting to the pinch off tube on both sides 3 Connect the charging hoses low pressure side for the gauge manifold to the tube fit ting NOTE Connect the hoses using care not to mistake the high pressure side for the low pressure side and vice versa 4 Connect the charging hose at the center of the gauge manifold to the vacuum pump Evacuation 1 Open the low pressure valve LOW of the gauge manifold 2 Turn on the vacuum pump to start evacua tion Evacuate the system for approxi
15. ed power cord or plug after it malfunc tions has been dropped or damaged 22 Only use in the upright position on an even flat surface Unit must be posi tioned at least 24 inches 60 cm from the nearest object in any direction 23 Stop operation immediately if abnormal noise or odor is noticed Contact a lo cal service center 24 Appliance is not to used by children or persons with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction 25 Children being supervised not to play with appliance 26 That the appliance shall be installed in accordance with national wiring regula tions 27 If the supply cord is damaged it must be replaced by the manufacturer its ser vice agent or similarly qualified persons in order to avoid a hazard SAVE THESE INSTRUCTIONS 28 page 6KK14BEA2AA Troubleshooting chart KOLDWAVE Service Manual Corrective Action Symptom Water leakage The unit doesn t work No cold air flows from the cold air outlet Water flow can be heard after compressor shuts off Alarm displays FT with less than half of condensate water in the tank Spring is possibly broken Possible Cause s High water level in conden sate tank 1 Check the power supply to verify that power is avail able to the unit 2 Verify that the power cord is connected 1 Ambient air cannot be properly cooled if th
16. em Frost prevention sensor and Ab normal tempera ture sensor value Refrigerant high pressure switch Abnormal tem perature sensor value Abnormal tem perature sensor value Compressor over loaded Condensate water level alarm Drain pump alarm Cause Indoor heat exchanger temperature too low TH3 temperature sensor has a loose or broken connection Blocked air filter e Blocked kinked exhaust duct Ambient temperature is too high TH1 Outlet tempera ture sensor has loose or broken connection TH2 Inlet temperature sensor has a loose or broken connection Ambient temperature is too high Unstable voltage supply Defective compressor Condensate tank is full Drain pump defective or improper hose con nection including kink or block age koLDwAVE Service Manual Corrective Action Do not use the air condition er if ambient temperature is lower than 18 C 64 F Contact a qualified service agent Clean air filter e Ensure exhaust duct is not blocked kinked Do not use the air condition er if ambient temperature is higher than 45 C 113 F Contact a qualified service agent Contact a qualified service agent Do not use the air condition er if ambient temperature is higher than 45 C 113 F Contact a qualified service agent Replace compressor Empty the water tank After installati
17. ich is supported at fulcrum a is pushed down in the direction of the arrow When the drain tank base plate is forced down portion located at the top of the drain tank base plate turns off micro switch contacts 1 2 gt 4 7 Evaporator UU Drain Pan KK N Portion A nanan Portion 25 KOLDWAVE Manual ASSEMBLY Component parts 6KK14BEA2AA Figure 1 P Display Control board lt Evaporator filter Condenser filter e Guide bar for condensate water tank est Condensate water tank Water level is sensed and the unit operation is stopped when tank is full An alarm will be displayed Empty the tank and replace to resume operation Front and Right Side View 1 Take out the cord holder from the accessory box 2 Place the cord holder on the back side of air conditioner 3 Use screws enclosed inside of accessory box with cord holder to install the cord holder on the air conditioner as shown in Figure 3 9 Figure TOP FAN EXHAUST FLANGE 1 Remove the top fan exhaust flange from carton 2 Place the top fan exhaust flange e 0 2 Cool air outlet hose Electrical access panel Power cord holder Caster Back and Left Side View
18. is shown below Check capacitance 6KK14BEA2AA page 23 KOLDWAVE Service Manual 6KK14BEA2AA Temperature Sensor Outlet temp sensor TH1 is installed on top of the evaporator and detects evaporator outlet temperature as a resistance value Inlet temp sensor TH2 is installed in front of evapo rator and detects evaporator inlet temperature as a resistance value Ice temp sensor is installed in the evaporator outlet piping and detects low temperature on the evaporator as a resistance value Specification Symbol Type E Connector Characteristic Short Detection Open Detection 10kohmat 181 83 29 F 34 C OUT TEMP SENSOR 77 F 25 C more or less 10kohmat 181 F 83 or 29 F 34 C TIN TEME SENSOR 77 F 25 C more or less THa 10kohmat 181 F 83 or 29 F 34 C EE 77 F 25 C more or less 24 KOLDWAVE 6KK14BEA2AA Service Manual Drain Tank Switch The drain switch activates and stop the operation of compressor motor and fan motor when approximately 3 17 gal 12 L of drain water accumulates in the drain tank At the same time control panel display FT and compressor and fan operations stop This system uses a 250 V 0 1 rating micro switch for this function e When approximately 3 17 gal 12 L of drain water accumulates in the drain tank the drain tank base plate wh
19. itor for Compressor MCCB Mold Case Current Braker MC Magne Contactor Current Relay Capacitor for motor Relay Board page 35 KOLDWAVE Service Manual 6KK14BEA2AA Fan Motor Removal 1 Bell mouse Eva Top Cover d 2 6 Motor 5 Evaporator Fan 3 Housing for Condenser Fan 4 Motor Bracket Partition Plate Housing for Evaporator Fan 1 Take off the two 4 bolts and then remove the bell mouse 2 Loosen the set screw with a hex key and then remove the condenser fan 3 Take off the three 3 nuts and then remove the condenser fan housing 4 Take off the four 4 nuts and then remove the fan motor together with the mo tor bracket 5 Loosen the set screw with a hex key and then remove the evaporator fan 6 Take out the four 4 nuts and then remove the fan motor 36 page KOLDWAVE 6KK14BEA2AA Service Manual REFRIGERANT SYSTEM REPAIR Brazing n the event of a leak obstruction or trouble in the refrigerant system of the unit replace or repair the defective component After replacing defective component braze all connections 1 Proper brazing techniques When brazing use a slightly reduced flame Oxyacetylene is commonly used since the flame condition can be easily judged and adjusted Unlike gas welding a sec ondary flame is used for brazi
20. mately 30 min 3 When the low pressure gauge indicates 30 inHg 100 kPa turn off the vacuum pump and close the low pressure valves of the gauge manifold 4 Leave the high pressure valve and the low pressure valve of the gauge manifold closed 6KK14BEA2AA Charging Hose Side Refrigerant Cycle Side Pinch Off Tube Low Pressure Valve Closed High Pressure Valve Closed Tube Fitting 2 2 de Aa Low Pressure Side Tube Vacuum Pump when stopped Low Pressure Gauge 30 inHg 100 kPa or larger dj Low Pressure Valve Low Pressure Side Tube Vacuum Pump when stopped for five min or more and confirm that the gauge pointer does not return to zero 40 page KOLDWAVE 6 14 Service Manual Refrigerant Charging Work 1 Refrigerant charging 1 Remove the charging hose from the vacuum Valve Setting Specified t pump and connect it to the refrigerant cyl e Reuse inder R 410A Valve of Low Pressure Valve 2 Loosen the nut on the gauge manifold side ylinder of the charging hose Open the valve of the charging hose Open the valve of the refrig erant cylinder After air purging tighten this nut and close the valve of the refrigerant 25 e 3 Securely place the refrigerant cylinder on a 2 f reir scale with a weighing capacity of 70 Ib 30 kg that is graduated by 0 2 oz 5 g 4 Open lo
21. nd paper and by thorough cleaning with a solvent such as Trichlene 4 Dry Nitrogen gas use e During brazing the inside of the pipe undergoes an oxidative reaction due to the brazing flame Introduce dry nitrogen gas 0 3 gal min 1 L min adjust with the flow regulator through the pinch off tube of the refrigerant cycle to prevent oxi dation NOTE Do not get foreign matter such as dirt water or oil into the piping 5 Vertical joints For vertical joints heatthe entire brazed fitting to the proper brazing temperature Bring the brazing filler metal into contact with the fitting so that the brazing filler metal begins to flow e Stop heating the fitting as soon as the braz 3 Brazing Filler Metal ing filler metal has flown into the gap clear ance Since the brazing filler metal flows easily into portions heated to the proper temperature the entire fitting must be kept at the proper brazing temperature Burner Brazing Filler Metal 38 page KOLDWAVE 6KK14BEA2AA Service Manual Charging the System with R 410A Refrigerant Always ensure that the refrigerant system has been properly evacuated before charging with the specified amount of R 410A Equipments is only for R 410A e Liquid charge no gas charge Make sure not to use more than 90 of the initial weight of R 410A in the cylin der WARNING eWhen handling refrigerant R 410A the following precautions should al ways b
22. ng Properly preheat the base metal according to the shape size and thermal conductivity of the brazed fitting e The most important point in flame brazing is to bring the entire brazed fitting to a proper brazing temperature Care should be taken not to cause overflow of the brazing filler metal oxidation of the brazing filler metal or filler metal deteriora tion due to overheating the flux 2 Brazed fittings and fitting clearance n general the strength of the brazing filler metal is lower than that of the base metal As such the shape and clearance of HUNE brazed fittings are very important Concern 0 001 0 003 in ing the shape of brazed fittings adhesive gt area must be maximized In addition the clearance of the brazed fitting must be mini mized so that the brazing filler metal will flow into the fitting via capillary action Clearance From The Pipe Fitting and Tubing page 37 KOLDWAVE Service Manual 6KK14BEA2AA 3 Cleaning brazing filler metal and piping e When the refrigerant system has been opened exposure to heat may cause the brazing filler metal to stick to the inside and outside of the piping Brazing filler metal may also combine with oxygen in the air to form an oxide film In addition grease and oils may stick to the pipe during handling All these factors will reduce the effectiveness of brazing Therefore excess brazing filler metal must be removed with sa
23. on of the water tank press the SPOT COOL or ROOM COOL but ton to resume operation e Check the hose connection and hose Replace drain pump page 21 KOLDWAVE Service Manual 6KK14BEA2AA Compressor 1 Compressor motor The compressor motor is a single phase motor and is contained within the same housing as the compressor Specifications Rated Voltage Rated Output 6KK14BEA2AA 115V 3160W 2 Compressor overload relay The compressor overload relay is used to protect the compressor motor The relay interrupts the flow of current when there is an overload condition and high temperature builds up in the compressor Inner protector COMPR MOTOR 7 Run capacitor 22 page KOLDWAVE 6KK14BEA2AA Service Manual Fan Motor The fan motor is a single phase induction type The motor rotates the fan on both the evapora tor side and the condenser side at the same time The following table shows the specifications of the fan motor used for each model NOTE An internal overload relay is used to protect the fan motor This relay is built into the fan motor and interrupts the flow of current when there is an over current situation or if abnormally high temperature builds up in the fan motor Capacitor Capacitor The capacitor is used to improve the rotational power of the fan motor and compressor at start up The specification for each capacitor
24. onditioning system 6KK14BEA2AA 1 conventional air conditioners cool the entire enclosed environment 2 They act as heat exchangers equiring an interior unit evaporator to blow cool air into the interior and an exterior unit condenser to exhaust exchanged heat to the outdoors Indoor Unit Outdoor Unit Portable air conditioning system 1 The 6KK14BEA2AA is a spot cooler which directs cool air to particular areas or objects 2 The 6KK14BEA2AA has the following fea tures 3 The innovative design of the 6KK14BEA2AA has resulted in one compact unit replacing Exhaust Hot Air Cooling Air the need for two separate units es 4 With the whole cooling system built into one 2 compact unit the 6KK14BEA2AA requires no piping and be easily transported and to Evaporator POY installed P VI CS 5 The 6KK14BEA2AA is economical because it cools only the area or objects which need to be cooled 4 page KOLDWAVE Service Manual 6KK14BEA2AA SPECIFICATIONS Exterior Dimension Diagram ad MI 5 KOLDWAVE Service Manual Technical Specifications 6KK14BEA2AA Specifications Unit 6KK14BEA2AA Cooling Capacity Btu h 13 200 Phase Single Power Supply Volts 115 Hertz 60 Power Consumption Watts 1200 Rated
25. ot in use and unplug the power plug from the electrical outlet 16 Always turn the unit off and unplug the main power plug from the electrical outlet before cleaning moving or performing maintenance page 27 KOLDWAVE Service Manual 6KK14BEA2AA 17 AVOID the use of adapter plugs or extension cords If it is necessary to use an extension cord or an adapter plug to operate the unit ensure that they are correctly rated for the application Consult a local qualified electrician and all local electrical codes to ensure proper setup Any extension cord used with this device must be rated for a minimum of 15A 18 DO NOT unplug the unit by pulling on the electrical cord Keep electrical cord away from heat sources and always completely unroll the cord to avoid over heating If the power cord becomes damaged a qualified service agent quali fied electrician or similarly qualified person must replace it in order to avoid a hazard or shock WARNING operate unit with a damaged power cord 19 The filters must be used with the product at all times When the filters are removed for cleaning always ensure that the unit has been turned off and unplugged from the electrical outlet 20 Regularly clean the filters to maintain efficiency If the filters are not cleaned regularly the units output performance and efficiency will decline and energy consumption will increase 21 DO NOT operate the unit with a damag
26. rect installation and usage Please read all safeguards 1 Transport and store the unit in an upright position only Leave unit in an upright position for at least 3 hours before first use 2 Always place the unit on an even level surface 3 Ensure the unit is connected to a grounded power supply of the correct rating capacity 4 The unit will cool when the room temperature is between 18 64 4 45 C 113 F depending on the thermostat setting 5 DO NOT use this unit for functions other than those described in this instruction manual DO NOT tilt the unit DO NOT cover or obstruct the unit s inlet and outlet grilles DO NOT use the unit in areas where it will be exposed to rain or water NEVER unplug the unit while it is operating LD COON OD DO NOT use the unit in wet environments such as V WARNING a laundry room to avoid the risk of electrical shock 10 DO NOT place any foreign objects on the unit 11 DO NOT operate the unit with wet or damp hands 12 DO NOT allow chemical substances to come into contact with the unit 13 DO NOT operate the unit in the presence of flammable substances or vapors such as alcohols pesticides gasoline etc DO NOT operate the unit explosive or flammable WARNING p p environments 14 DO NOT use the plug to start and to stop the unit Always use the control panel to start and to stop the unit 15 Always turn off the unit when it is n
27. s program prevents a heavy load from being applied to the compressor motor when restarting the unit mode or spot cool mode after a very short period of time This delay is in effect any time the compressor is turned on by either the POWER ON OFF button or ROOM COOL or SPOT COOL ON OFF button Specifications Time Delay 120 sec 5 Automatic restart and recovery function The microprocessor contains a feature that automatically restart the unit after power is lost and regained and also has memory to store and recover operation status in the even of a power loss Status of memory during power interruption e When the input power is off the status items below are saved in the memory Running status on or off Operating mode Cool mode or fan only mode Set temperature Temperature mode F C 6 Temperature control During cool mode temperature control changes RL4 compressor on off relay status according to TH3 temperature in the available range 4 F to 140 F 20 C to 60 C ON RL4 Compressor Relay OFF Set Temp 3 F Set Temp Set Temp 1 7 C gt Inlet Air Temperature When compressor operation continues within this range for more than 5 minutes the RL4 relay stops 20 page 6KK14BEA2AA Self Diagnostic Codes Self diagnostic codes are displayed on the Display Panel under the following condi tions Alarm Display Probl
28. trol panel sensors and external devices to perform device control Control Panel Input Symbol Indication Function Connector EN ON OFF Button If POWER BUTTON is pressed during operation unit stops EN FAN Button Changes fan speed from LOW to HIGH when pressed SET TEMPA Button Regulates temperature based on outlet cool air temperature SET TEMP V Button Regulates temperature based on inlet ambient air temperature Sensor Input Specification Symbol Type Characteristic Short Detection Open Detection TH1 OUT TEMP 10 k ohm at 181 F 83 C or 29 F 34 C or SENSOR 77 F 25 C more less TH2 IN TEMP SEN 10k ohm 181 F 83 or 29 F 34 or TH2 SOR 77 F 25 C more less ICE TEMP SEN 10 k ohm at 181 F 83 C or 29 F 34 C or TH3 SOR 77 F 25 C more less External Input Signal Specification On Between 10 On Activates Defect contro Comp Overload to 20 mA at DC12 Contact Normally open LED V Off No signal shows CO Output signal ON On Between 10 Off Activates Defect control External Pump Failure to 20 mA at DC12 Contact Normally open LED FU V Off signal shows FU Output signal ON On Between 10 On Activates Defect control Pressure Switch to 20 mA at DC12 Contact Normally closed LED PS V Off signal shows PS output signal ON
29. w the high pressure valve of the gauge manifold and the valve of the refrigerant cylinder Charge the system with refrigerant to the specified amount Standard Amount of Refrigerant 6KK14BEA2AA 28 907 820g The amount of refrigerant charged has a great effect on the cooling capacity of the unit Charge to the specified A CAUTION amount always observing the scale graduations while charging 5 Close the high pressure valve of the gauge manifold and the valve of the refriger ant cylinder 2 Removal of gauge manifold 1 Crimp the pinch off tube with a pinch off tool To Gauge 2 Remove the gauge manifold and the pro Pinch Off Tube cess tube fitting Crush the end of the pinch off tube 3 Braze the end of the pinch off tube To Refrigerant 4 Ensure that a gas leak is not present at the add pinched off portion and the brazed end page 41 KOLDWAVE Service Manual 6KK14BEA2AA N WARNING eDo not attempt any repair on a charged system A WARNING Before checking for gas leaks fully confirm that there is nothing flammable in the area to cause an explosion or fire Contact of refrigerant with an open fire generates toxic gas 42 page KOLDWAVE 6KK14BEA2AA Service Manual page 43 KOLDWAVE Service Manual 6KK14BEA2AA 44 page
30. xchanger with Louver fins 2 Heat is given off and absorbed by air be ing pulled across the condenser fins by the axial fan The air is then expelled through the condenser air outlet KOLDWAVE Service Manual Eccentric Shaft Roller Oil Scrapper page 11 KOLDWAVE Service Manual 6KK14BEA2AA Capillary Tube The capillary tube is a long thin tube that utilizes line flow resistance as an expansion valve The length and the inner diameter of the capillary tube are determined according to the ca pacity of the refrigeration system lt operating conditions and the amount Low Temp Low Pressure High Temp High Pressure of refrigerant The high pressure high Gas and Liquid Mixture Liquid Refrigerant temperature liquid refrigerant sent from the condenser expands rapidly as the refrigerant is sprayed out through the fixed orifice in the capillary tube As a result the temperature and state of the refrigerant becomes low and mist like and therefore evaporates easily Evaporator The evaporator is a heat exchanger covered with slit fins Heat is removed from the air being pulled across the evaporator by the centrifugal fan The resulting cool air is expelled through the cooling air ducts Accumulator The accumulator is mounted on
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