Hokkaido HKEI-HCNI 263 G Service Manual Download Page 19 | Manualshive

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Service manual

7.8 Evacuation

Procedure:
Connect the vacuum pump to the charge set’s centre hose.
Evacuation for approximately one hour.
Confirm that the gauge needle has moved toward -0.1 Mpa (-76 cmHg) [vacuum of 4 mmHg or less].
Close the valve (Low side) on the charge set, turn off the vacuum pump, and confirm that the gauge needle does
not move (approximately 5 minutes after turning off the vacuum pump).
Disconnect the charge hose from the vacuum pump.
Vacuum pump oil, if the vacuum pump oil becomes dirty or depleted, replenish as needle.

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Summary of Contents for HKEI-HCNI 263 G

Page 1: ...Cover HKEI HCNI 263 G HKEI HCNI 353 G HKEI HCNI 503 G HOKKAIDO SERVICE MANUAL ...

Page 2: ...7 4 12 Air purging of the piping and indoor unit 7 5 13 Pumping down Re installation 7 6 14 Re air purging Re installation 7 7 15 Balance refrigerant of the 2 way 3 way valves 7 8 15 Evacuation 7 9 16 Gas charging 8 Electronic function 17 8 1 Proper symbols and their meaning 17 8 2 Function 17 8 3 Protection 17 8 4 Fan only mode 18 8 5 Cooling mode 18 8 6 Dehumidifying mode 19 8 7 Heating mode 19 ...

Page 3: ...non often occurs during operation 27 10 5 Operation lamp flashes and Timer lamp off 27 10 6 Operation lamp flashes and Timer lamp on 27 10 7 Operation lamp off and Timer lamp flashes 28 10 8 Operation lamp on and Timer lamp flashes 28 10 9 Operation lamp flashes Timer lamp flashes 28 11 Characteristic of temperature sensor 29 ...

Page 4: ...oduct zBe sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury zDo not let the air conditioner run for a long time when the humidity is very high and a door or a windows is left open Moisture may condense and wet or damage furniture zTake care to ensure that power cable coul...

Page 5: ...erational zDo not expose the skin directly to cool air for long periods of time Do not sit in the draft This could harm to your health zDo not use the product for special purposes such as preserving foods works of art etc It is a consumer air conditioner not a precision refrigerant system There is risk of damage or loss of property zDo not block the inlet or outlet of air flow It may cause product...

Page 6: ... each operation mode The unit will decide the louver direction according to operation mode Two direction air vane The fan is turn to low speed cooling heating The unit will be turn off at the seventh hour Sleep mode auto control The function is usually used in rainy days in springtime or damp areas Independent dehumidification Operation indication Lamps VLED Turbo mode The louver can be set at the...

Page 7: ...rol Discharge pipe temperature protect It is only operated in the heating operation mode except defrosting operation Hydrophilic aluminum fin The hydrophilic fin can improve the heating efficiency at operation mode Low noise air flow system Bird tail propeller fan makes the outdoor unit run more quietly Power relay control Outdoor unit 4 ...

Page 8: ...Service manual 3 Dimension 3 1 Indoor unit Dimension Mode W H D 263 790 275 190 353 790 275 190 503 940 275 175 3 2 Outdoor unit Dimension Mode W H D 263 700 535 235 353 700 535 235 503 760 590 285 5 ...

Page 9: ...9 36 32 43 41 35 45 43 38 Dimension W H D mm 790X190X275 790X190X275 940x175x275 Packing W H D mm 865X265X350 865X265X350 1015x265x350 Net Gross weight Kg 8 5 10 5 9 11 10 13 5 Model YDK24 6T YDK24 6F YDK36 6 Brand Welling Welling Welling Input W 60 60 71 Capacitor uF 3 3 2 5uF 450V Speed r min 800 800 900 a Number of rows 1 2 2 b Tube pitch a x row pitch b mm 25 4x22 21 13 37 25 4 22 c Fin spacin...

Page 10: ...Service manual 4 Refrigerant cycle diagram Cooling only Heat pump mode 7 ...

Page 11: ...from the continuous operation under constant air temperature conditions However excludes the initial pull down stage 5 2 Heating operation Indoor air temp DB Outdoor unit air temp DB Note The chart is the result from the continuous operation under constant air temperature conditions However excludes the initial pull down stage 8 ...

Page 12: ...Service manual 6 Wiring diagram HKEI HCNI 263 353 503 G Indoor Outdoor 9 ...

Page 13: ...Service manual 10 ...

Page 14: ...g specifications sheet Grade Unit 263 353 503 mm2 1 0 1 5 2 5 7 3 Pipe length and the elevation Pipe size Capacity Btu h GAS LIQUID Standard length m Max Elevation B m Max Pipe length A m Additional refrigerant g m 263 3 8 φ9 52 1 4 φ6 35 5 5 20 30 353 503 1 2 φ12 7 1 4 φ6 35 5 8 10 20 25 30 In case that more than Caution Capacity is base on standard length and maximum allowance length is base of ...

Page 15: ... closed position Check for gas leakage At this time especially check for gas leakage from the 2 way and 3 way stem nuts and from the service port Be sure to use a hexagonal wrench to operate the valve stem Check for gas leakage Check the flare connection for gas leakage Caution Purge the air from the system If gas leakage is discovered in step 3 above take the following measures Set the 2 way valv...

Page 16: ...charge hose with the push pin to the gas service port Air purging of the charge hose Open the low pressure valve on the charge set slightly to purge air from the charge hose Set the 2 way valve to the close position Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0 1MPa Immediately set the 3 way valve to the closed position Do this quickly so that the gauge en...

Page 17: ...1 minutes repeat 3 times After purging the air use a torque wrench to tighten the flare nut to on the 2 way valve Check the gas leakage Check the flare connections for gas leakage Discharge the refrigerant Close the valve on the charging cylinder and discharge the refrigerant until the gauge indicate 0 3 to 0 5 Mpa Disconnect the charge set and the charging cylinder and set the 2 way and 3 way val...

Page 18: ...service port Open the valves Low side on the charge set and discharge the refrigerant until the gauge indicates 0 05 to 0 1 Mpa If there is no air in the refrigeration cycle the pressure when the air conditioner is not running is higher than 0 1Mpa discharge the refrigerant until the gauge indicates 0 05 to 0 1 Mpa If this is the case it will not be necessary to apply a evacuation Discharge the re...

Page 19: ...as moved toward 0 1 Mpa 76 cmHg vacuum of 4 mmHg or less Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approximately 5 minutes after turning off the vacuum pump Disconnect the charge hose from the vacuum pump Vacuum pump oil if the vacuum pump oil becomes dirty or depleted replenish as needle 16 ...

Page 20: ...specified amount of refrigerant if can be charged with a little at a time approximately 150g each time0 while operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure pumping down pin 4 Immediately disconnect the charge hose from the 3 way valve s service port Stopping partway will allow the refrigerant to be di...

Page 21: ...rature protection restoring temperature TE7 Evaporator high temperature protection compressor off temperature TE8 Evaporator high temperature protection fan off temperature TE9 Evaporator high temperature protection restoring temperature 8 2 Function Remote receiving Testing and forced running Position set for indoor unit wind vane LED displaying and alarm On or off Timer Protection for the compre...

Page 22: ... 5 second later Current down If compressor turns off for continuously 4 times due to current protection in 5 minutes from Compressor On the unit stops and LED displays failure information and can t returns to normal operation automatically 8 4 Fan only mode Fan speed is high mid low Auto 8 5 Cooling mode The 4 way valve is closed at cooling mode The action of the compressor and the outdoor fan T i...

Page 23: ...operation will be resumed when room temperature restores to over 13 8 6 4 At dehumidifying mode the anti freezing function of the indoor heat exchanger is the same as that of cooling mode 8 6 5 At dehumidifying mode the action of fans of indoor is the same as that of air only mode 8 7 Heating mode 8 7 1 Generally the 4 way valve is open in heating mode but it is closed in defrosting mode 4 way val...

Page 24: ...t Anti cold wind function prevails Anti cold wind control function at heating mode T indoor exchanger temp T T temp up T temp down Setting fan speed Breeze Fan off TE3 TE1 TE4 TE2 8 7 5 Auto wind at heating mode T indoor temp 0 T Ts Room temp up Room temp down 2 Low fan Med fan 8 7 6 Indoor evaporator high temperature protection at heating mode T indoor exchanger temp 21 ...

Page 25: ... to 90 minutes e defrosting time is 10 minutes If item B is satisfied after item A the defrosting time is 7 5minutes At condition the defrosting time is 10 minutes After three times continuous 7 5 minute defrost the fourth defrost time should be 10 minutes The circulation is as following compressor still running 8 8 2 Defrosting time At condition If item B is satisfied before item A it would be re...

Page 26: ... the switch 8 10 2 The compressor is unconditionally turned on after 30 minutes cooling operation whose fan mode is set as low the A C operates at the DRY mode with a set temp of 24 8 10 3 All protections of remote control cooling are available at forced cooling operation ode 8 11 1 The sleep function is available at cooling heating or auto mode intain as a constant and the 8 9 3 8 9 4 One mode s ...

Page 27: ... with r The total time is 7 hours after 7 hours the unit stops 8 11 3 Heating The set temperature decrease the air circulation is kept at low speed Anti cold function takes preced The total time is 7 hours after 7 hours the unit stops 8 After an hour running will decrease 1 if it is under heating mode the set temp will be changel condition will be the next time the set temp do not change The total...

Page 28: ...I5MIN 7 5A 8 5A 15 0A IFAN 5 5A 7 5A 11 5A IRESTORE 4 5A 6 5A 9 5A IDEFROST 3 5A 5 0A 7 5A TE1 28 34 34 TE2 32 37 36 TE3 30 33 30 TE4 26 22 20 TE5 4 4 3 TE6 10 10 14 TE7 60 63 60 TE8 53 53 52 TE9 50 52 50 ANGLCOOL 88 88 88 ANGLHEAT 125 125 125 ANGLOFF 0 0 0 THDEFROST 17 18 17 TMDEFROST 18 19 18 TLDEFROST 19 20 19 ...

Page 29: ...onditioner is in economic operation 10 2 Troubleshooting For cooling mode Failure phenomenon Operation lamp Timer lamp Indoor fan speed has been out of control for over 1 minute X Indoor room temp or evaporator sensor is open circuit or short circuit On Over current protection of the compressor occurs 4 times X EEROM error On No over zero signal r Extinguish Flash at 5Hz For heat pump mode Failure...

Page 30: ...39 25 10 52 3 1918 1 37 1988 26 9 5507 53 3 0707 0 35 2024 27 9 1245 54 2 959 1 33 3269 28 8 7198 55 2 8442 2 31 5635 29 8 3357 56 2 7382 3 29 9058 30 7 9708 57 2 6368 4 28 3459 31 7 6241 58 2 5397 5 26 8778 32 7 2946 59 2 4468 6 25 4954 33 6 9814 60 2 3577 7 24 1932 34 6 6835 61 2 2725 8 22 5662 35 6 4002 62 2 1907 9 21 8094 36 6 1306 63 2 1124 10 20 7184 37 5 8736 64 2 0373 11 19 6891 38 5 6296 ...

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