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Hitachi HPS2017004HA, Service Manual

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Hitachi HPS2017004HA Service Manual Download Page 58

5

5. CONTR

ROL LOGIC DESC

CRIPTION

N

55

5.6 Condenser High-temperature Protection 

DC-Inverter outdoor unit
AC will enter T3 protection if  any of  the following conditions is satisfied.

Condition1: 
Cooling mode: When the outdoor coil temp. T3 keeps higher than T2  for 10 
seconds, the compressor and outdoor fan will shut off. When T3 is lower than T1, 
the compressor and outdoor fan will restart up. 
Condition2: 
Heating mode: When the indoor coil temp. T3 keeps higher than T2  for 10 
seconds, the compressor and outdoor fan will shut off. When T3 is lower than T1, 
the compressor and outdoor fan will restart up. 

T3

TE10

Off

On

TE11

Summary of Contents for HPS2017004HA

Page 1: ...SERVICE MANUAL HPS2017004HA ...

Page 2: ...E1NH RCI 3 0TNE1NH RCI 4 0TNE1NH RCI 5 0TNE1NH RCI 6 0TNE1NH RCI 6 5TNE1NH Cooling only type RCI 1 5UNE1NH RCI 2 0UNE1NH RCI 3 0UNE1NH RCI 4 0UNE1NH RCI 5 0UNE1NH RCI 6 0UNE1NH RCI 6 5UNE1NH Heat pump type RCI 1 5TNE1NH RCI 2 0TNE1NH RCI 3 0TNE1NH RCI 4 0TNE1NH RCI 5 0TNE1NH RCI 6 0TNE1NH RCI 6 5TNE1NH Cooling only type RAS 1 0UNESNH1 RAS 1 5UNESNH1 RAS 2 0UNESNH1 RAS 3 0UNESNH1 RAS 4 0UNESNH1 RAS...

Page 3: ... Controller 1 1 2 Wireless Remote Controller 10 1 3 IR receiver 15 2 Troubleshooting 16 2 1Trouble guide 16 2 2 Fault codes 21 3 Checking components 31 3 1 Check refrigerant system 31 3 2 Check parts unit 33 4 Disassembly and assembly for compressor and motor 41 5 Control logic description 52 ...

Page 4: ...1 1 O OP PT TI IO ON N N L LI IS ST T 1 Wired Rmote Controller Model HCWA21NEWH 1 1 Wired remote controller installation in the grips 1 ...

Page 5: ...1 1 O OP PT TI IO ON N L LI IS ST T Custom Custom Custom Temperature measurement unit Celsius to access custom custom be displayed up custom settings mode The method of setting the custom parameters 2 ...

Page 6: ... T enabled revised set point all values will be flicking at the display press all values will be flicking at the display press settings remote located at an area with different temperature than the room so correction start an offset 3 ...

Page 7: ... O OP PT TI IO ON N L LI IS ST T all values will be flicking at the display press Upper cover assembly the screen of 1 2Wired pressing UP DOWN setting values or to set the airflow direction setting value 4 ...

Page 8: ...I IO ON N L LI IS ST T operation swing swing revision setting setting setting once for available for specific for the Custom setting parameters b must be configured by installer or autorized person Basic operation 5 ...

Page 9: ...ease During the appliance in working mode unabling is the default setting swing swing swing swing Function set Super mode activated at activate with the working unit to activate the Super mode Silent mode silent mode operation activate during appliance operation activate silent mode 6 ...

Page 10: ...IS ST T With improve comfort activate be displayed activated will disappear lock buttons users setting overwrite disabled activate activate be displayed staff staff is displayed perform warning prompt available actual set enter 7 ...

Page 11: ... timer cancellation Single Timer ON OFF Single Timer ON OFF Single Timer ON OFF setting setting Single Timer ON OFF Single Timer ON OFF Single Timer ON OFF cancellation cancellation Daily ON OFF Timer Single Timer ON OFF The Single Daily and Weekly timer functions can not be set at the same time if need TIMER ON OFF work in the future time please use WEEKLY TIMER function Note 8 ...

Page 12: ...ayed SETTING SELECTION SELECTION setting is displayed are flickering selection setting selection setting setting setting setting selected or hour setting to cancel setting setting setting setting is done with the same procedure as need to setting selected 9 ...

Page 13: ...ight airflow direction 10 LEFT RIGHT adjustment louver swinging and set the desired up down airflow direction Used to stop or start horizontal 8 UP DOWN Used to adjust the room temperature and the timer 2 TEMP 1 4 2 2 3 7 6 10 8 9 Note Each mode and relevant function will be further specified in following pages Heating and electric heating function are not available in single cooling only models P...

Page 14: ...e The battery can be used for about 6 months If the Remote Control is not operated even when placing it near the receiver replace 2 batteries with the new ones Please do not use manganese battery because it may cause mal function Avoid extremely hot or cold locations such as placing it near or over a radiator or in direct sunlight Also avoid placing under fluorescent light Do not let children play...

Page 15: ...After 2 5 minutes the air flow will be discharged until temperature of indoor heat exchanger rises 16 30 Range of available set temperature HEATING COOLING DRY unable to set FAN Note Heating mode is NOT available for cooling only models Press Press button can change the unit operating status Result Result Press button once by once Press button once by once Auto High Medium FAN COOL DRY HEAT button...

Page 16: ...n AUTO mode POWERFUL mode POWERFUL mode is used to start or stop fast cooling or heating only when the unit is on How to set POWERFUL mode Press POWERFUL button at the cool dry and fan mode Result At high fan speed the set temperature automatically to 16 Press POWERFUL button at the heat mode Result At high fan speed the set temperature automatically to 30 How to cancel POWERFUL mode Press POWERFU...

Page 17: ...on and confirm it Result Press TIMER button when the unit is off How to cancel TIMER ON Press the TIMER button Result The indicator disappears the timer on mode has been canceled How to set TIMER ON Result and flash on the LCD 1 2 3 PRESS PRESS PRESS PRESS SLEEP mode can be set in COOLING HEATING or DRYING mode This function gives you a more comfortable environment for sleep The appliance will sto...

Page 18: ... indicator Red It lights on during operation It lights off during SLEEP mode 2 Emergency switch The filter clean indicator when the switch is pressed The unit will stop operation if pressing the button if pressing for more than 5s the unit will operate in cooling mode 3 Timer indicator Green It lights on when timer is in use It lights off when timer finishes 4 Filter clean Yellow It lights on when...

Page 19: ...codes icated by w FIG dicated by D2 red an t number la fault code ue flash 3 t G G ailure occu panel s w G 1 FAULT CO LED lamp nd Lamp D amp DEFR 36 led RU times repor urs the fau ired remote controlle DE DISPLAY ps on displa DEFROST ROST disp UN defros rts No 36 ult code wil r see figu ON WIRE RE ay panel LED5 gr play fault co st flash 3 tim fault l displays o re below EMOT CONTR reen flash ode s...

Page 20: ...mS T2 after 2000mS T3 fau ult code repeat d displays as shown below Displ lay panel 1 1 2 2 1 2 Run indicator Red Indicates the fault code ten digital number Defrost indicator Green Indicates the fault code singal digital number DEFROST FILTER TIME RUN EMERGENCY 2 1 2 1 T1 T T2 Fig 2 2 2 LED ALSH H CONTROL T3 17 ...

Page 21: ...means L method is th is no failure LED2 indica te main cont te drive cont are all off in LED will off 5 he same with e protect or p te fault code trol failure co trol failure co dicate comp 5s to report n main contro preheating e single digit ode ode ressor is pre next failure c ol failure code number and eheating code e LED3 indica ate Fault Outd door Unit DC In nverter split code displa a aircon...

Page 22: ... LE ES SH H xample outd xample outd INVERTER code will dis H HO OO OT TI IN NG G oor main con oor drive fau splay on digit G G ntrol fault 32 ult 32 SPLIT AIR CONDITI tal tube boar ONER rd 4 0 5 0 6 0 6 5HP Digital Tu Outdoor ube r Control Board 19 ...

Page 23: ...2 2 T TR RO O O OU UB BL LE ES SH H H HO OO OT TI IN NG G G G 20 ...

Page 24: ... too low 3 The compressor is blocked 4 Overload in cooling mode 5 Overload in heating mode 1 Replace the electrical control board components 2 Normally protection 3 Replace the compressor 4 Please see the Note 3 5 Please see the Note 4 4 EEprom Data error 1 EE components is failure 2 EE components control circuit failure 3 EE components insert incorrect 1 Replace the EE components 2 Replace the ou...

Page 25: ... the overload protector 3 Check the welding point of the unit to confirm whether it is leakage and then recharge the refrigerant 4 Add the refrigerant 5 Replace expansion valve 6 Replace the outdoor control board 14 the high pressure switch operate or the unit turn off for high pressure protection 1 The wiring of the high pressure protector connect loose 2 The high pressure protector is failure 3 ...

Page 26: ...h fault 1 The refrigerant of the unit is not enough 2 The refrigerant of the unit is not enough due to add the length of the installation pipe 3 Throttling service is failure 4 The outdoor ambient temperature is too high 1 Check the welding point to confirm whether the unit has exist leakage point and then add some refrigerant 2 Add some refrigerant refer to the installation user manual 3 Replace ...

Page 27: ...Discharge the refrigerant and charge the refrigerant refer to the rating label 97 4 way valve commutation failure fault 1 The wiring of the 4 way valve coil connect loose 2 The 4 way valve coil is failure 3 The 4 way valve is failure 4 The driver board of the 4 way valve is failure 1 Reconnect the wiring of the 4 way valve 2 Replace the 4 way valve coil 3 Replace the 4 way valve 4 Replace the driv...

Page 28: ...n cable refer to the indoor and outdoor wiring diagram 2 Reconnect the communication cable refer to the indoor and outdoor wiring diagram 3 Replace the communication cable refer to the indoor and outdoor wiring diagram 4 Replace the indoor control board 5 Replace the outdoor control board 72 Indoor fan motor fault 1 The cable of the indoor fan motor connect loose 2 The cable of the indoor fan moto...

Page 29: ...g controller to the indoor control board 3 Replace the wiring between the wiring controller to the indoor control board 4 Replace the wiring controller 5 Replace the indoor control board ER Communication between main control board display board Fault displays on display board 1 The wiring between the display board to the indoor control board connect loose 2 The sequence of the wiring between the d...

Page 30: ...blocked Remove the blocked thing 8 The expansion valve or the capillary is failure Replace the expansion valve or the capillary Note 4 Over load in heating mode Overload in heating mode sr The root cause Corrective measure 1 The refrigerant is excessive Discharge the refrigerant and recharge the refrigerant refer to the rating label 2 The indoor ambient temperature is too high Please use within al...

Page 31: ...e power supply 2 Change the driver board 14 PFC LOW voltage detected failure 15 AD offset abnormal detected failure Driver board failure Change the driver board 16 Inverter PWM logic set fault 17 Inverter PWM initialization failure 18 PFC_PWM logic set fault 19 PFC_PWM initialization fault 20 Temperature abnormal 21 Shunt resistance unbalance adjustment fault 22 Communication failure 1 Communicati...

Page 32: ...iver board 8 DC voltage overload voltage 1 Supply voltage input too high 2 Driver board fault 1 Check power supply 2 Change the driver board 9 AC voltage imbalance Driver board fault Change the driver board 10 The PFC current detection circuit fault before compressor is ON Bad driver board components Change the driver board 11 AC voltage supply in outrange 1 Power supply abnormal power frequency o...

Page 33: ...e driver board 18 Driver board read EE data error 1 EEPROM has no data or data error 2 EEPROM circuit fault 1 Change EEPROM component 2 Change the driver board 19 PFC chip receive data fault Abnormal communication loop Change the drive board 20 PFC soft start abnormal Abnormal PFC drive loop Change the drive board 21 The compressor drive chip could not receive data from PFC chip Communication loop...

Page 34: ... refrige TEM FLOW ditions C T Pressure G nique s SEE FEEL TEST ponents erant syst W Compressor The air cond Gauge see fe Tube The d Test tem is running dition should eel test e defrost difference b pressure d be installed between tube d in good ve e s temperat ntilation ture 31 ...

Page 35: ...and 4 way valve If the pressure is close to static pressure NO NO 4 way valve collude or compressor exhaust very ebb yes NO yes Heating mode Test system pressure Does the high pressure normal at service part The pressure on the high side The pressure on the low side Recharge refrigerant after air purging with the vacuum pump Does the high pressure normal over again Air remaining at the refrigerant...

Page 36: ...d 1 0 1 5 3 0 4 0 5 0 6 0 6 5HP DC motor 2 0HP AC motor 1 0 1 5HP Motor m 3 0HPMotor mode 4 0 5 06 0 6 5HP 2 0HP unit odel SIC l SIC 70 Motor m Motor model YSK11 68CVL F1 CW F195 model SI C 0 40 4 A 40 1 1 C 101CW F1250 4 33 3 CHECKING COMPONENTS ...

Page 37: ... ORANG OW RED 6 BLUE 63 WHITE 1 te 1 5HP DC MOTOR 2 0HP AC MOTOR M 3 0 4 0HP DC MOTO 5 0 6 0 6 5HP DC M W 146 15 WN 33 15 GE 43 15 63 15 Ω 15 Ω 19 15 Ω MODEL YDK OR MODEL MOTOR MOD Ω Ω 5 Ω Ω Ω K95 28 4 B EHDS50A DEL SIC 7 AQH 72FW D8124 2B 34 3 CHECKING COMPONENTS ...

Page 38: ...OTOR MOD 5 0 6 0 6 5HP stance timeter sistance of cuit or ope age EL SIC 52F EL SIC 70C EL SIC 70C DC MOTOR MODEL the main w en circuit FV F130 3 CW F1100 6 CW F1140 3 L SIC 101CW winding The 6 3 W F1181 2 indoor fan m motor is fault t if the resiistance of m main winding g Floor ceiling 35 3 CHECKING COMPONENTS ...

Page 39: ...oltage repeat 0V DC and 5V DC Notes Please don t hold motor by lead wires Please don t plug IN OUT the motor connecter while power ON Please don t drop hurl or dump motor against hard material Malfunction may not be observed at early stage after such shock But it may be found later this type of mishandling void our warranty 36 3 CHECKING COMPONENTS ...

Page 40: ...SOR 2 0HP ATM150D23UFZ 3 0HP ATF235D43UMT 4 0 5 0HP ATF310D43UMT 6 0 6 5HP ATH356SDPC9FL OTOR ODEL SIC MODEL SIC L SIC 71FW L SIC 81FW MOTOR MODEL SIC 71 52FV F130 C 61FV F161 W D8121 1 W F1138 1 FW D8121 3 1 1 1 SIC 71F FW D8121 2 COMPRESSOR EXAMINE AND REPAIR 1 0HP ASD088SKNA8JT 1 5HP ASN108D43UFZA 37 3 CHECKING COMPONENTS ...

Page 41: ... on its side or turn over 2 Please assembly the compressor in your air conditioner rapidly after removing the plugs Don t place the comp In air for along time 3 Avoiding compressor running in reverse caused by connecting electrical wire incorrectly 4 Warning In case AC voltage is impressed to compressor the compressor performance will below because of its rotor magnetic force decreasing 4 INDUCTAN...

Page 42: ... continuity by a multimeter as shown in Fig 2 Fuse Fig 2 7 CAPACITOR Remove the lead wires from the capacitor terminals and then place a probe on the capacitor terminals as shown in Fig 3 Observe the deflection of the pointer setting the resistance measuring range of the multimeter to the maximum value The capacitor is good if the pointer bounces to a great extent and then gradually returns to its...

Page 43: ...Compressor motor capacitor Fan motor capacitor Multimeter Fig 3 40 3 CHECKING COMPONENTS ...

Page 44: ... and verified as voltage free Step Illustration Handling Instruction external 1 Remove casing 1 Remove the top cover handle and valve cover 2 Remove the outer case and right side plate 2 Remove motor 1 Remove the blade nut and then remove the blade 2 Remove the motor from motor supporter 3 Remove compressor 1 Reclaim the refrigerant from the entire system 2 Unsolder the 4 way valve piping assy fro...

Page 45: ...emove external casing 1 Remove the top cover handle and valve cover 2 Remove the outer case and right side plate 2 Remove motor 1 Remove the blade nut and then remove the blade 2 Remove the motor from motor supporter 3 Remove compressor 1 Reclaim the refrigerant from the entire system 2 Unsolder the 4 way valve piping assy from compressor 3 Remove the compressor mounting bolts by using hexagon soc...

Page 46: ...case and right side plate 2 Remove motor 1 Remove the blade nut and then remove the blade 2 Remove the motor from motor supporter 3 Remove gas liquid separator 1 Reclaimthe refrigerant from the entire system 2 Unsolder the 4 way valve piping assy from gas liquid separator 3 Remove the gas liquid separator 4 Remove compressor 1 Reclaim the refrigerant From the entire system 2 Unsolder the 4 way val...

Page 47: ...g the base board then remove the base board 3 Remove the screws on fan sub assembly Remove the screws on fan sub assembly 4 Removing the fan cage enclosure Rotate the fan cage housing toward supply opening and remove 5 Loosen the fan and motor Loosen the screws holding the fan cage to the motor shaft by using hexagon screwdriver Remove outer housing holding motor in place 6 Replace the motor Remov...

Page 48: ...hen remove the base board 3 Remove the screws on fan sub assembly Remove the screws on fan sub assembly 4 Removing the fan cage enclosure Rotate the fan cage housing toward supply opening and remove 5 Loosen the fan and motor Loosen the screws holding the fan cage to the motor shaft by using hexagon screwdriver Remove outer housing holding motor in place 6 Replace the motor Remove the motor from t...

Page 49: ...d unplug the motor cables in electric box 2 Loosen the fan and motor Use a offset spanner to loosen the screws holding the fan cage to the motor shaft Remove outer housing holding motor in place 3 Remove the diversion circle and support bracket Use screwdriver to remove the diversion circle and support bracket 4 Replace the motor Remove the fan cage from the motor shaft Remove the motor from the a...

Page 50: ...Loosen the screws holding the electric box cover and remove the plate Use screwdriver to loosen the electric box and the plate 2 Loosen the bolts holding the fan blades in place and Remove the fan blade Use a wrench or socket to carefully remove the fan blade bolts 3 Loosen the screws holding the motor in place and Remove the motor and replace it Use screwdriver to loosen the screws holding the mo...

Page 51: ...box Use screwdriver to loosen the Electric box 2 Loosen the screws holding condensate pan and Remove the condensate pan Use screwdriver to loosen the screws holding the drain pan in place 3 Loosen the bolts holding the fan blades in place and Remove the fan blade Use a wrench or socket to carefully remove the fan blade bolts 4 Loosen the screws holding the motor in place and Remove the motor and r...

Page 52: ...down front panel assembly Slide open the 4 decorative covers loose and take out the 4 screws then open the down front panel assembly Loose and take out the 4 screws fixing the hinge then remove the down front panel assembly Disassembly of the mounting Plate Loose and take out the 2 screws fixing the mounting Plate then remove it Disassembly of the electric box Loose and take out the 3 screws fixin...

Page 53: ...sassembly of the motor 2 0 3 0HP Remove the fasteners between the up shell and the below shell Take out of the motor and centrifugal fan blade Remove the 2 screws fixing the centrifugal fan blade and get the motor Disassembly of 4 0HP Remove the fasteners between the up shell and the below shell on both sides of the motor Remove the 2 screws fixing the Crosshead and take it away from the motor Tak...

Page 54: ... AN ND D M MO OT TO OR R Removal of the motor Step Illustration Handling Instruction motor Disassembly of the motor 5 0 6 0 6 5HP Remove the fasteners between the up shell and the below shell on both sides of the motor Remove the 2 screws fixing the Crosshead and take it away from the motor Take out of the motor 51 ...

Page 55: ... r room tem mp T1 is l en T1 is h higher tha ules start up it or fan Fir rst it will r the speed d by the o d descriptio on r r stop set to high h medium l m mperature T T it will follo n n Ts 1 the will follow u un in an in it has two o e e downer f fan speed o on is disa abled and s s all the tim m s is setting g n nning rules s w w the belo o ower than T Ts the com compress the below v variable...

Page 56: ...r r room tem m ules start up it or fan Fir rst it will r the speed d by the in cold air peed can b b p prevention e selecte perature T Ts is settin will follow u un in an in it has two o e e downer f fan speed 0 2 a ating mode e is starte a anger of th he indoor d as high g g tempera the below v variable s outdoor fa ans the u 4 medium t ture rules p peed for a e emperature e d door coil t lower t...

Page 57: ...ied e er T2 protec c e compres ssor and TE6 T2 TE5 h h remote 0 0 w will choos ΔT 3 If the com mpressor the mach w w temper r tion if any y of the fol the indoo o a and outdoo o On Off e e cooling Ru u Cooling Fan only Heating o of the relev vant mode ature Pro otection r coil tem mp T2 kee o outdoor fan n will shut r fan will r restart up c controller a a nning mo ode The louv ping for 1 keep sto...

Page 58: ...When the outdoor coil temp T3 keeps higher than T2 for 10 seconds the compressor and outdoor fan will shut off When T3 is lower than T1 the compressor and outdoor fan will restart up Condition2 Heating mode When the indoor coil temp T3 keeps higher than T2 for 10 seconds the compressor and outdoor fan will shut off When T3 is lower than T1 the compressor and outdoor fan will restart up T3 TE10 Off...

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