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York DHP30NWB21SDCP30NWB21SDHP36NWB21SDCP36NWB21S Service Manual Download Page 17

11

Technical Information

Service Manual

4. Refrigerant System Diagram

Indoor unit 

Outdoor unit 

COOLING 

HEATING 

4-Way valve 

Discharge

Suction

Heat 

exchanger

(evaporator) 

Heat 

exchanger

(condenser) 

Heat 

exchanger

(condenser) 

 Valve

 Valve

Liquid pipe

side

Gas pipe

side

Strainer Electron 

expansion 

valve

Strainer

Electron 

expansion 

valve

Accumlator 

Compressor

Capillary

 

 Indoor unit 

Outdoor unit 

Accumlator 

COOLING

Discharge

Suction

Heat 

exchanger

(evaporator) 

 Valve

 Valve

Liquid pipe

side

Gas pipe

side

  Compressor 

Strainer

Capillary

Cooling only model

30K:

Cooling and heating model

Summary of Contents for DHP30NWB21SDCP30NWB21SDHP36NWB21SDCP36NWB21S

Page 1: ...EAD AND UNDERSTAND THIS MANUAL BEFORE USING THIS INVERTER DRIVEN AIR CONDITIONING UNIT KEEP THIS MANUAL FOR FUTURE REFERENCE INDOOR UNIT DHP30NWB21S DCP30NWB21S DHP36NWB21S DCP36NWB21S OUTDOOR UNIT DH...

Page 2: ...advanced information to maintain and service this inverter driven cooling or heat pump air conditioning unit which you operate as well for other models This inverter driven cooling or heat pump air c...

Page 3: ...d Diagram 15 6 Function and Control 17 6 1 Remote Controller Introduction 17 6 2 Brief Description of Modes and Functions 22 8 Troubleshooting 34 8 1 Flashing LED of Indoor Outdoor Unit and Primary Ju...

Page 4: ...rrectly injuries may occur due to a falling unit Use appropriate Personal Protective Equipment PPE such as gloves and protective goggles and where appropriate have a gas mask nearby Also use electrica...

Page 5: ...ure the condensate hose discharges water properly If connected incorrectly it may cause leaks Do not install the unit in any place where oil can seep onto the units such as table or seating areas in r...

Page 6: ...on Controls Johnson Controls uses only refrigerants that have been approved for use in the unit s intended home country or market Johnson Controls distributors similarly are only authorized to provide...

Page 7: ...as and liquid valves otherwise these devices will be damaged It is closed before shipment If the arrangement for outdoor units is incorrect it may cause flowback of the refrigerant and result in failu...

Page 8: ...el to the indoor or outdoor units without turning OFF the main power supply After ceasing operation be sure to wait at least five minutes before turning off the main power switch Otherwise water leaka...

Page 9: ...1 Technical Information Service Manual Summary Indoor Unit Outdoor Unit 1 Models DHP30NWB21S DCP30NWB21S DHP36NWB21S DCP36NWB21S DHP30CSB21S DCP30CSB21S DHP36CSB21S DCP36CSB21S Remote Controller DRCPX...

Page 10: ...oor Unit Model of indoor unit DCP30NWB21S DHP30NWB21S Fan Type Cross flow Cross flow Diameter Length DXL inch 4 1 4X20 9 16X2 4 1 4X20 9 16X2 Fan Motor Cooling Speed SH H M L r min 1350 1150 950 850 1...

Page 11: ...5 0 45 Fan Motor Capacitor F Air Flow Volume of Outdoor Unit CFM 2354 2354 Fan Type Axial flow Axial flow Fan Diameter inch 21 21 32 21 21 32 Defrosting Method Automatic Defrosting Climate Type T1 T1...

Page 12: ...WB21S DHP36NWB21S Fan Type Cross flow Cross flow Diameter Length DXL inch 4 1 4X20 9 16X2 4 1 4X20 9 16X2 Fan Motor Cooling Speed SH H M L r min 1400 1250 1000 800 1400 1250 1000 800 Fan Motor Heating...

Page 13: ...89 0 89 Fan Motor Capacitor F Air Flow Volume of Outdoor Unit CFM 2589 2589 Fan Type Axial flow Axial flow Fan Diameter inch 21 21 32 21 21 32 Defrosting Method Automatic Defrosting Climate Type T1 T...

Page 14: ...64ft DB 80 F WB66 F Indoor air flow Super High 4 5 14 110 100 90 80 70 60 50 40 23 32 41 50 Conditions Indoor DB70 F Indoor air flow Super High Pipe length 24 39 64ft Cooling Heating 24K 0 2 4 6 8 10...

Page 15: ...e connecting indoor and outdoor unit Inlet and outlet pipe temperature of heat exchanger Fan speed of indoor unit Fan speed of outdoor unit Compressor revolution rps Indoor Outdoor P PSIG T1 F T2 F 70...

Page 16: ...n Service Manual 53 9 64 12 53 64 10 11 19 32 3 1 2 1 37 64 13 25 32 10 29 3 8 2 3 4 2 3 4 3 Outline Dimension Diagram Unit inch 3 2 Outdoor Unit Unit inch 14 37 64 31 7 64 16 13 16 15 9 16 39 1 2 24...

Page 17: ...denser Heat exchanger condenser Valve Valve Liquid pipe side Gas pipe side Strainer Electron expansion valve Strainer Electron expansion valve Accumlator Compressor Capillary Indoor unit Outdoor unit...

Page 18: ...hanger condenser Heat exchanger condenser Valve Valve Liquid pipe side Gas pipe side Strainer Electron expansion valve Strainer Electron expansion valve Accumlator Compressor Indoor unit Outdoor unit...

Page 19: ...OG Orange Note Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model 3OHDVH GRQ W WRXFK DQ HOHFWURQLF FRPSRQHQW RU WHUPLQDO ZKHQ WKH PDFKLQH LV UXQQLQJ VWRS...

Page 20: ...5220 7 03 6 1625 867 7 03 6 1625 1 1 35 17 5 8 7 2 5 5 725 8 9 20 27720 7 7 1 7 5 2035 6625 1 7 5 33 35 6685 6 7 3 3 16 21 9 9 7521 9 9 33 3 6 7 35 6685 2 2 127 0RWRU JURXQG RQO DSSOLHV WR WKH LURQ VK...

Page 21: ...of communication 6 Power switch 7 High frequency transformer 8 Interface of fan motor 9 Buzzer 10 Interface of display 11 Interface of display 12 Indoor tube temperature sensor interface 13 Ambient t...

Page 22: ...minal of compressor OVC COMP 7 Terminal of 4 way valve 12 Protective tube FU101 3 Terminal of temp sensor CN2 8 Electric heater band of chassis HEAT2 L 13 Terminal of ground wire 4 High pressure prote...

Page 23: ...lock Heat mode Fan mode Dry mode Cool mode Auto mode Operation mode I feel Note After putting through the power the air conditioner will give out a sound Operation indictor is ON red indicator After t...

Page 24: ...ER ON TIMER OFF or CLOCK press or button to adjust time Refer to CLOCK TIMER ON TIMER OFF buttons Caution Under AUTO speed air conditioner will select proper fan speed automatically according to facto...

Page 25: ...ntrolled by the inlet pipe sensor Normal preset temperature is 92 F Set temperature range from remote controller 16 30 Fan speed auto low speed medium speed high speed 5 TURBO button Under COOL or HEA...

Page 26: ...ill stop blinking icon resumes displaying Cancel TIMER ON Under the condition that TIMER ON is started up press TIMER ON button to cancel it TIMER OFF button TIMER OFF button can set the time for time...

Page 27: ...r energy saving function set temperature can t be adjusted Press TURBO button and the remote controller won t send signal Sleep function and energy saving function can t operate at the same time If en...

Page 28: ...r at least 3 minutes the compressor will resume its original operation state Total current up and frequency down protection If Itotal 16A frequency rise will be allowed if Itotal 17A frequency rise wi...

Page 29: ...e the indoor ambient temperature before the command to start the compressor is performed according to the program or after the unit is withdrawn from defrost the indoor ambient temperature before the...

Page 30: ...sion the compressor will not be be locked out and error code will be given Overload protection If temperature sensed by the overload sensor is over 239 F the compressor will stop and the outdoor fan w...

Page 31: ...y 1 1 LCD Display of Wired Zone Controller 1 2 Description of LCD Display No Symbols Description 1 Swing function 2 Air exchange function this function is currently unavailable for this unit 3 Sleep f...

Page 32: ...ting range 0 5 24 hr 6 3 Fan Setting of the high middle low auto fan speed 4 Mode Setting of the Cooling Heating Fan Dry Auto mode of the indoor unit 6 Function Switchover among the functions of Turbo...

Page 33: ...C every 0 5s as shown in Fig 3 3 1 In the Cooling Dry Fan or Heating mode the temperature setting range is 61 F 86 F 16 C 30 C In the Auto mode the setting temperature is unadjustable 3 4 Fan Setting...

Page 34: ...ter setting of timer if Timer button is pressed LCD won t display xx Hour so that timer setting is canceled Timer off setting under the On state of the unit is shown here in Fig 3 5 1 Fig 3 5 1 Timer...

Page 35: ...f the unit until the unit enters the Sleep setting state After that press Enter Cancel to confirm this setting Sleep off When the Sleep function is activated press Function to enter the Sleep setting...

Page 36: ...pproach the setting value In the Cooling or Heating mode press Function until the unit enters the Turbo setting status and then press Enter Cancel to confirm the setting When the Turbo function is act...

Page 37: ...rated to avoid mildew In the Cooling or Dry mode press Function till the unit enters the Blow setting status and then press Enter Cancel to active this function When the Blow function is activated pre...

Page 38: ...his function is not set the unit will be under the Off state after power failure and then power recovery Memory recovery If this function has been set for the wired zone controller the wired zone cont...

Page 39: ...unication line into the slot of the wired zone controller and then buckle the front panel and the soleplate of the wired zone controller together 5 Finally secure the front panel and the soleplate of...

Page 40: ...ring the operation of the system the error code will be displayed on the LCD as show in Fig 5 1 If multiple errors occur at the same time their codes will be displayed sequentially Note In event of an...

Page 41: ...load 5 Overcurrent protection E5 OFF 3S and blink 5 times OFF 1S and blink 5 times During cooling and drying operation compressor and outdoor fan stop while indoor fan operates During heating operatio...

Page 42: ...ature sensor is open short circuited F3 OFF 3S and blink 3 times OFF 1S and blink 6 times During cooling and drying operating compressor stops while indoor fan operates During heating operation the co...

Page 43: ...voltage is higher than 265VAC turn on the unit after the supply voltage is increased to the normal range 2 If the AC input is normal measure the voltage of electrolytic capacitor C on control panel A...

Page 44: ...acitor 29 Malfunction of module temperature sensor circuit P7 OFF 3S and blink 18 times During cooling and drying operation compressor will stop while indoor fan will operate During heating operation...

Page 45: ...tor is stalling 4 Motor malfunction 5 Malfunction of mainboard rev detecting circuit 38 Desynchro nizing of compressor H7 OFF 3S and blink 7 times During cooling and drying operation compressor will s...

Page 46: ...unction of complete units current detection U5 OFF 3S and blink 13 times During cooling and drying operation the compressor will stop while indoor fan will operate During heating operating the complet...

Page 47: ...cator Heating Indicator Yellow Indicator Red Indicator Green Indicator 53 Normal communica tion 54 Defrosting OFF 3S and blink once during blinking ON 10s and OFF 0 5s OFF 0 5S and blink once OFF 1S a...

Page 48: ...41 Compressor starts normally...

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Page 51: ...ert the wiring terminal of indoor fan It s the malfunction of main board Replace a new main board that is of the same model It s the malfunction of main board Replace a new main board that is of the s...

Page 52: ...V GH QHG DEQRUPDO 0DOIXQFWLRQ GLDJQRVLV SURFHVV Start V WKHUH MXPSHU FDS RQ WKH PDLQERDUG V WKH MXPSHU FDS LQVHUWHG FRUUHFWO DQG WLJKWO 5HSODFH WKH MXPSHU FDS ZLWK WKH VDPH PRGHO SSHDUDQFH RI WKH MXPS...

Page 53: ...HSODFH WKH PDLQERDUG ZLWK WKH VDPH PRGHO End V WKH VXSSO YROWDJH WRR ORZ ZLWK RYHUORDG V WKH LQGRRU RXWGRRU KHDW H FKDQJHU GLUW RU DUH WKH DLU LQOHW DQG RXWOHW EORFNHG 7KH IDQ LV DEQRUPDO DQ VSHHG LV...

Page 54: ...UR FURVV GHWHFWLRQ FLUFXLW RI WKH PDLQERDUG LV GH QHG as DEQRUPDO 0DOIXQFWLRQ GLDJQRVLV SURFHVV 7XUQ SRZHU RII IRU PLQXWH WKH WXUQ EDFN RQ 7KH XQLW UHWXUQV WR QRUPDO RQFOXVLRQ 8 LV GLVSOD HG GXH WR SR...

Page 55: ...pply Check if connection line of IDU and ODU and the wire inside electric box are correctly connected Correct connection Main board matches with display board Main board of IDU matches with that of OD...

Page 56: ...ting circuit on control panel AP1 Replace the control panel AP1 Measure the AC voltage between terminalL andN on wiring board XT power supply Voltage within 210VAC 250VAC Shut down the power and repai...

Page 57: ...n that the system pressure is too high and exceeds the permissible range 4 If the charge volume of refrigerant is too much resulting in that the system pressure is too high 5 Other conditions resultin...

Page 58: ...outdoor ambient temperature higher than 53 20 minutes after the complete unit is powered off Is heat dissipation of the indoor unit and outdoor unit abnormal Normal protection please operate it after...

Page 59: ...ng enough time Fault diagnosis process Y N Y N N Y Y N Power on the unit Is stop time of the compressor longer than 3 minutes Restart it after 3 minutes Does startup fail Are the wires for the compres...

Page 60: ...onnected correctly Is connection sequence right Is the connection made in clockwise direction Connect the wires correctly Replace the control panel AP1 If the fault is eliminated Replace the compresso...

Page 61: ...er the complete unit is powered off Is the terminal FA for the electronic expansion valve connected correctly Connect the wires correctly Resistances between the first four pins close to the terminal...

Page 62: ...iring of the reactor L of the outdoor unit and the PFC capacitor Whether there is any damage or short circuit Replace it as per the wiring diagram and reconnect the wires If the fault is eliminated Di...

Page 63: ...before the failure occurs The AP1 voltage detection circuit is at fault Check wiring inside of the indoor and outdoor units Are wires broken Check the communication circuit of the outdoor unit If the...

Page 64: ...the outdoor unit If the fault is eliminated Is the connection right Check the wiring of the indoor and outdoor units with reference to the wiring diagram Correctly connect the corresponding wires for...

Page 65: ...open Check if the capacity output of outdoor unit is equal to the capacity demand of indoor units Check if the indoor outdoor filters or radiating fins are dirty or blocked Clean the fins The system p...

Page 66: ...PDLQWHQDQFH PHWKRG IRU GHWDLOV 0DOIXQFWLRQ RI FRPSUHVVRU RPSUHVVRU FDQ W RSHUDWH 5HIHU WR SRLQW RI PDLQWHQDQFH PHWKRG IRU GHWDLOV 1 Air Conditioner Doesn t Start 2 Poor Cooling Heating for Air Conditi...

Page 67: ...drain pipe UDSSLQJ LV QRW WLJKW DWHU OHDNLQJ IURP WKH SLSH FRQQHFWLRQ SODFH RI LQGRRU XQLW UDS LW DJDLQ DQG EXQGOH LW WLJKWO 5 Compressor Doesn t Operate 3RVVLEOH FDXVHV LVFULPLQDWLQJ MHWKRG ALU CRQG...

Page 68: ...es after turning off all power supplies and reclaim the refrigerant completely before removal A3 panel as an example Steps Procedure 1 Before disassembly of the unit 2 Remove filter panel clasps filte...

Page 69: ...move horizontal louver display clasp panel horizontal louver Remove 2 screws securing display and then remove the filter Pull the clasps at both sides slightly and then remove the panel Remove the axi...

Page 70: ...front case screw top cover of electric box screw cap screw front case Procedure Steps Remove screws fixing the top cover of electric box Remove the top cover of electric box Remove the screw caps on f...

Page 71: ...ding wire 9 Remove electric box cover screw clasp clasp electric box cover Remove grounding screws and then remove the grounding wire Loosen clasps at the left side of electric box Loosen clasps on th...

Page 72: ...dure Steps 10 Remove temperature sensor 11 Remove electric box temperature sensor screw electric box Pull out the indoor temperature sensor Pull out 6 sockets on PCB board Pull out 2 screws on electri...

Page 73: ...on position for indoor and outdoor units connection pipe pipe stopping plate screw screw damping board Pull the water tray upwards and then remove the water tray Separate the connection pipe between i...

Page 74: ...w evaporator screw Remove screws between evaporator and bottom case Turn over the indoor unit and adjust the pipe line to the position as shown by the broken line Lift up the evaporator and then remov...

Page 75: ...68 Service Manual a Procedure Steps b c 18 Remove cross flow blade and motor blade motor Remove screws fixing cross flow blade and motor Remove the motor sub assy Separate two cross flow blades...

Page 76: ...69 Service Manual a b Procedure Steps 19 Remove cushion rubber cushion rubber Remove the cushion rubber on cross flow blade Remove the cushion rubber from the base...

Page 77: ...l Loosen the screws connecting the front side panel and chassis Remove the front side panel Procedure valve cover Remove the screw connecting the big handle and right side plate and then remove the bi...

Page 78: ...ff the screws connecting the grille and panel and then remove the grille 5 Remove right side plate right side plate Twist off the screws connecting the right side plate and chassis valve support and c...

Page 79: ...or pliers pull out the wiring terminal pull it upwards to remove the electric box electric box cover Twist off the screws on electric box cover and then remove the electric box cover 8 Remove motor m...

Page 80: ...rt Twist off the screws connecting isolation sheet and end plate of condenser and chassis and then remove the isolation sheet 11 Remove 4 way valve 10 Remove isolation sheet isolation sheet 4 way valv...

Page 81: ...gas valve with wet cloth completely to avoid damage to valve and release all refrigerant completely first Unsolder the joint between liquid valve and connection pipe of liquid valve and then remove t...

Page 82: ...e left side plate Twist off the screws connecting the left side plate and chassis with screwdriver and then remove the left side plate Pull it upward to separate the chassis and condenser 16 Remove ch...

Page 83: ...d pipe inch Gas pipe inch Cooling only oz ft Cooling and heating oz ft 1 4 3 8or 1 2 0 2 0 2 1 4 or 3 8 5 8 or 3 4 0 2 0 2 1 2 3 4 or 7 8 0 3 1 3 5 8 1 or 1 1 4 0 7 1 3 3 4 2 7 2 7 7 8 3 8 3 8 Cooling...

Page 84: ...wing steps A Cut the pipe Confirm the pipe length according to the distance of indoor unit and outdoor unit Cut the required pipe with pipe cutter B Remove the burrs Remove the burrs with shaper and p...

Page 85: ...717 24 8 60 23 95 9 779 165 2 2 28 235 4 0 697 26 6 57 18 96 8 9 382 167 2 206 237 2 0 678 28 4 54 31 98 6 9 003 168 8 2 133 239 0 66 30 2 51 59 100 4 8 642 170 6 2 064 240 8 0 642 32 49 02 102 2 8 29...

Page 86: ...3 04 235 4 0 93 26 6 76 24 96 8 12 51 167 2 94 237 2 0 904 28 4 72 41 98 6 12 168 8 2 844 239 0 88 30 2 68 79 100 4 11 52 170 6 2 752 240 8 0 856 32 65 37 102 2 11 06 172 4 2 663 242 6 0 833 33 8 62...

Page 87: ...147 2 10 54 217 4 3 04 8 6 323 9 78 8 47 08 149 10 18 219 2 2 955 10 4 306 2 80 6 45 07 150 8 9 827 221 2 872 12 2 289 6 82 4 43 16 152 6 9 489 222 8 2 792 14 274 84 2 41 34 154 4 9 165 224 6 2 715 15...

Page 88: ...81...

Page 89: ...Product improvement specifications and appearance in this manual are subject to change without prior notice Johnson Controls Inc USA LIT 12012194...

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