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1. b gt K Compressor Crankcase Heater Resistance Check Unplug the wire connector from the circuit board The resistance should read approximately 2 15K ohms There should be no reading from either wire to ground If readings vary from these measurements replace the heater These sensors are a negative coefficient thermistor that decrease in resistance as the temperature increases The sensors are used to monitor the temperature of the refrigerant Please refer to the troubleshooting section for error codes generated by a sensor fault Temperature sensors and locations will vary depending on models 53 Liquid Line Temperature Sensors These sensors a negative coefficient thermistor that decrease in resistance as the temperature increases The sensors are used to monitor the temperature of the refrigerant leaving the EEV to maintain a correct superheat operation Please refer to the troubleshooting section for error codes generated a sensor fault Temperature sensors and locations will vary depending on models 54 Troubleshooting Outdoor Components The exhaust temperature sensor monitors the refrigerant discharge temperature and will send information to the inverter control board for system operation The following actions can occur Exhaust Temperature gt 208 F Compressor will not rise above present level Exhaust Temperature gt 217 F Compressor will run at reduced frequency
2. 2 L gt 1 29 Accumulator m Compressor Note Component locations may vary depending on models Cooling Mode Refrigeration Cycles and Components Outdoor Unit Strainer A SS SSE Indoor Unit Temperature Heat Sensor Strainer Eectonic Exchanger 255555 d xpansion Et S SS S NAAN valve Heat Exchanger S o F L H 4 way Temperature valve Sensor Discharge ilencer Discharge Temperature S SEDSOE Accumulator not 5 on all sizes o R be ee 2 22 ee 10 Refrigeration Cycles and Components A Hot gas is discharged from the compressor The temperature of the gas is monitored by the Discharge Temperature sensor and sent to the outdoor control panel B The hot gas is directed through the 4 way valve then enters the outdoor coil The hot gas will be slightly subcooled however there are no pressure ports to take measurements C The subcooled liquid will enter the filter to remove contaminates D The subcooled liquid will enter the metering device and regulate the superheat level The adjustment process and compressor speed are controll
3. Malfuntiuon Name Power protection Indoor unit and outdoor unit doesn t match Failure start up Malfunction of phase current detection circuit for compressor U1 Malfunction U3 of voltage dropping for DC bus bar Malfunction of complete units current detection Indicator Display during blinking ON 0 5s and OFF 0 5s Operation Indicator OFF 35 and blink 20 times OFF 35 and blink 19 times Display Method of Indoor Unit Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking ON 0 5ws and OFF 0 5s Cool Heating Yellow Indicator Indicator Indicator OFF 3S and blink 9 times OFF 3S and blink 16 times 3S and blink 11 times OFF 3S and blink 13 times OFF 3S and blink 20 times A C Status Compressor stop operation and Outdoor fan motor will stop 30S later 3 minutes later fan motor and compressor will restart Compressor and outdoor fan motor can t work During cooling and drying operation compressor will stop while indoor fan operate During heating operationg the complete unit will stop operation During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop During co
4. Repair connection wire per Incorrect wiring or bad connection sen schematic Faulty compressor Replace compressor Open or shorted capacitor Replace capacitor Motor overload protector faulty The fan does not run when set to run Compressor runs outdoor fan will not Outdoor fan runs compressor will not run Check for proper voltage of power Improper voltage module replace module if input is OK and output is incorrect Incorrect wiring or bad connection Repair connection wire per schematic Overload protector faulty Replace protector if faulty 102 General Troubleshooting Incorrect refrigerant charge Charge per instructions Faulty metering device Check refrigerant flow The compressor is hot tripping overload Faulty valve in compressor Replace compressor Faulty protector Replace protector The toque of the swing motor not ES sufficient eplace swing motor Indoor swing motor Poor wrong connection A Repair connections inoperative P The controller is damaged Replace control board Incorrect power wiring Correct wiring Damaged main control board Replace control board Outdoor unit and indoor unit nor running Improper setting of temperature Adjust temperature setting 103 General Troubleshooting Drainage pipe blocked or broken Repair or replace pipe Damaged or insufficient pipe az i a on Re wrap pipe insulation Indoor fan lo
5. Start Troubleshooting Check wiring of the reactor L and PFC capacitor Outdoor Unit Are wires connected proper Correct according Is problem Yes with no short circuits to circuit diagram corrected No Remove the PFC Capacitor and test resistance of the two terminals Is the resistance Yes Replace the Is problem Yes about zero capacitor corrected No Disconnect the reactor wires amp measure the resistance between the two terminals of the reactor Is the reactor damaged or shorted Yes Is problem Yes corrected Replace the reacto NO Replace the 1 control panel End Troubleshooting 99 Communication Malfunction of Indoor Unit continued next page for Outdoor Unit E6 Communication Failure Status Cooling operation compressor stops while indoor fans runs Heating operation complete unit stops Improper voltages 2 Mis matched indoor and outdoor units Improper wiring between indoor and outdoor units Communication failure of some indoor units De energize check the wire connections of indoor and outdoor units and power to outdoor unit Are all connections No Did this correct the Yes Correct connections correct problem No De energize change the communication wire of the working communication indoor unit and malfunctioning non communicating indoor unit then energize the unit and wait for 3 minutes The malfunction Replac
6. 4744 ss 190 329 87 1886 494 16 32 3845 16 968 5979 ss 1904 474 18 50 3629 17 196 2944 89 1922 4600 4 68 3428 18 1004 2836 oo 1940 440 13 86 3239 9 1022 729 fo 1958 494 2 4 62 fso 0 2645 9 1976 4204 a 2 a 1058 fasu 19 194 409 ao fo 24 2 1076 2443 os 20 2 3958 9 Bs 293 e 1094 2319 jos 200 8 06 656 Js 2 29 os 2048 378 L7 2326 4s 130 145 197 2066 3619 686 2 2205 js 8 06 jos 284 3514 5 50 29 47 6 fissi 9 202 343 4 983 fas 1906 00 220 3315 9 266 94 49 2 fissa fioi 238 592 2 284 85 so 20 1785 02 156 3129 a 302 1695 1 1238 169 05 274 154 o 19 141 2 1256 1636 14 2192 295 1 fs fiss ss 1274 1575 tos 220 2872 2 1 1454 4 92 157 6 228 2792 5 faza 183 15 130 42 07 2246 2715 4 2 1915 6 1328 49 iog 24 264 126 Appendix 3 Resistance Table of Outdoor Discharge Temperature Sensor 50K SS eee ele gt F C F kO C F 1346 1358 09 2282 2568 pr M DR 7 48 4 9 1382 i262 23588 241 8 144 fios 0 0 27 12 2336 12365 9 1482 1028 161 4 u3 2354 2302 9 18 j 1436 92
7. Heat exchanger 110 Disassembly of RIO Indoor Unit 12 000 btuh Other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 8 Remove the pressure plate of the motor ressure plate of motor Step 1 Remove the screws of motor plate then i I remove the motor plate 9 Remove shaft cushion rubber base shaft cushion rubber base Step 1 Remove motor blade and shaft cushion rubber base Step 2 Remove screws on cross flow blade and then remove the motor 111 Disassembly of Outdoor Unit 9 000 amp 12 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly Warning Be sure to wait a minimum of 10 minutes after turning off all power supplies before disassembly 1 Remove handle Remove screws holding handle pull down handle and remove Cable Cross Plate sub assy 1 Remove top panel Remove the screws front right left then remove panel Top panel 112 Disassembly of Outdoor Unit 9 000 amp 12 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly 3 Remove grille and front panel 1 Loosen screws and remove the discharge grille 2 Loosen the 5 screws holding the front panel cabinet 4 Remove right side panel 1 Remove the 5 screws from the edge between right side board condenser and valve Lift to remove the pL right side
8. Neutral Wire 110v Live Wire 4 Way Valve Electric Expansion Valve L Protective Earth YEGN Yellow Green ig WD d HE AT HEAT 1 EH Bent HEATER 5551 63639441 WE Mu faga A ini W RT2 RT3 L e eH ERT ip uy RII B TEL nU L IL I y V W WH WHT TE BU BLUE YE YELLOW Ba RD RED YEGM YELLOW GREEN QU TIR UNIT OG CR ANGE 536323441 TERN Sn EN vis T vie vig TEE BI 08 EN 1 s e FAM These circuit diagrams are subject to change without notice please refer to the one supplied with the unit 37 9K 12K 230V e Indoor Unit Symbol Color symbol Symbol Color symbol wu were BN BROWN ve euow jRu m o e jack ve YELLOWGREEN Outdoor Unit Symbol Symbol Color symbol L1 L2 NEUTRAL WIRE LIVE WIRE WHITE YE YELLOW BU BLUE PROTECTIVE EARTH BLACK EO REN Li dc XN i s TUBE ROOM FAN Indoor Boar TEMP SENSOR TEMP SENSOR MOTOR door Board 4 1 9 amp 12k 9 ay TERMINAL BOARD TUBE ROOM C C 24 DISP1 DISP2 SWING UD J ESS AP2 PRINTED CIRCUIT BOARD D
9. 3S and blink 6 times OFF 35 and blink 15 times OFF 35 OFF and blink 3S and time blink 1 time OFF 3S and blink 15 times OFF 3S and blink 6 times OFF 3S and blink 6 times OFF 3S and blink 11 times During cooling and drying operation compressor and outdoor fan stop while indoor fan operates During heatin operation all loads stop During cooling and drying operation compressor and outdoor fan stop while indoor fan operates During heatin operation all loads stop All loads operate normally while operation frequency for compressor is decreased Wireless remote receiver and button are effective but can not dispose the related command When the outdoor unit receive signal of Gathering refrigerant the system will be forced to run under cooling mode for gathering refrigerant Refer to the malfunction analysis overload high temperature resistant Replace outdoor control panel 1 Discharging after the complete unit is de energized for 20 mins check whether the thermal grease on IPM module of outdoor control panel AP1 is sufficient and whether the radiateor is inserted tightly If its no use please replace control panel 1 No jumper cap insert on mainboard 2 Incorrect insert of jumper cap 3 Jumper cap damaged 4 Abnormal detecting circuit of mainboard Nominal cooling mode 59 Fault Displays Indicator has 3 kinds of disp
10. Properly remove all refrigerant 2 Remove the 3 footing screws holding compressor then remove the compressor ET mt e x 116 Disassembly of Outdoor Unit 9 000 amp 12 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly 8 Remove compressor cont 3 Remove screws holding gas valve assembly unsolder the joint between the gas valve and condensor piping then remove gas valve Before appying heat to the btubing protect the gas valve by wraping in a wet cloth Remove screws holding liquid valve assembly unsolder the joint between the liquid valve and Y Type tubing then remove liquid valve Before appying heat to the btubing protect the liquid valve by wraping in a wet cloth DU RD a i e Gas valve and liquid JAM MS AN 117 Disassembly of Outdoor Unit 18 000 and 24 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly Warning Be sure to wait a minimum of 10 minutes after turning off all power supplies before disassembly 1 Remove top cover plate valve cover and andle 1 Before disassembly 2 Remove srews holding the handle and valve cover pull handle and valve cover upward to remove 3 Remove screws holding the top cover then pull 4 upward to remove 118 Disassembly of Outdoor Unit 18 000 and
11. times During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation Internal fan motor external fan motor compressor and electric heater stop operationg guide louver stops and present location During cooling and drying operation compressor will stop while indoor fan operate During heating operationg the complete unit will stop operation During cooling and drying operation compressor will stop while indoor fan operate During heating operationg the complete unit will stop operation Outdoor DC fan motor malfunction lead to compressor stop operation Refer to the malfunction analysis IPM protection loss of syncrhonism protection and overcurrent protection of phase current for compressor 1 Bad contact of DC motor feedback terminal 2 Bad contact of DC motor control end 3 Fan motor is stalling 4 Motor malfunction 5 Malfunction of mainboard rev detecting circuit Refer to the malfunction analysis IPM protection loss of syncrhonism protection and overcurrent protection of phase current for compressor Refer to the malfunction analysis IPM protection loss of syncrhonism protection and overcurrent protection of phase current for compressor DC fan motor malfunction or system blocked or the connector loosed Fault Displays 41 42 43 44 45 46
12. 18 19 20 21 22 29 24 Mode icons Lock icon Light icon Sleep icon Temperature icon Up amp down swing icon Left amp right swing icon Set time icon Digital display Fan speed icon Replacing Batteries 1 Locate the battery cover on the back of the remote Slide the cover downward Make sketch of battery polarities then replace with two AAA batteries Replace cover Remote Control Operation UTC ai i gt AIR HUMIDITY FILTER TURBO HOUR 7 23 Product Introduction Remote Control Functions 1 On Off The on off state will change with each button press 2 Mode Setting Each time you press this button a mode is selected in a sequence that goes from AUTO COOL DRY FAN and HEAT After energization AUTO mode is defaulted In AUTO mode the set temperature will not be displayed on the LCD and the unit will automatically select the suitable operation mode in accordance with the room temperature to make indoor room comfortable 3 Button Press this button to decrease set temperature Hold it down for above 2 seconds to rapidly decrease set temperature In AUTO mode set temperature is not adjustable 4 Button Press this button to increase set temperature Hold it down for above 2 seconds to rapidly increase set temperature In AUTO mode set temperature is not adjustable 5 F
13. 2241 u 518 932 je 1454 09 Jus 290 2482 12 56 8907 fess 1472 fiosa ue 2124 121 54 8495 16 0 018 17 2426 2060 186 92 805 6 1508 87 us 2444 12015 15 90 79 60 126 49 19 2462 1963 o 7383 68 1544 146 00 2480 192 17 606 025 9 2 84 2498 1863 as 644 6734 70 1580 855 02 216 186 19 62 49 71 1598 098 053 2534 177 Qo 680 feas 72 1616 79 i24 2552 1725 87 3 776 05 2570 162 2 146 5649 4 1652 77 126 258 164 129 Gree Electric Appliances Inc C 2014 Cat No DFS RIO HP 2SM 130
14. During heating operation the complete unit will stop operation During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop Refer to the malfunction analysis overload high temperature resistant Refer to the malfunction analysis Replace outdoor control panel 1 Replace outdoor control panel 1 Refer to the part three charging malfunction analysis of capacitor 75 Fault Displays Indoor Unit Displaying Method Outdoor Unit Display LED Indicator has 3 kinds of display status Indicator Display during Malfuncti blinking 0 55 and OFF 0 55 and during blinking 0 55 and OFF 0 5s Running Cooling Heating D40 DA1 D42 D43 LED LED LED D5 D6 D16 D30 Name Malfunction of module blink 18 temperature sensor circuit Module high temperature blink 19 protection Malfunction of voltage dropping for blink 20 DC bus bar Ol OFF B Illuminated Blink 76 During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop During cooling and drying operation compressor will stop while indoor fan
15. Status Possible Causes Overcurrent Protection Status During cooling amp dehumidifying indoor unit operates while other functions stop During heating operation complete unit stops Supply voltage is unstable Supply voltage is too low Coils are dirty Improper refrigerant charge P S 5 Start Troubleshooting Check if compressor s connection no Adjust compressor s line is properly connected connection line Yes No Check if current value is higher than Replace overcurrent protector the protectors setting Yes Refer to high pressure Is units high pressure normal protection error Yes No Check connections contact Check if unit voltage is normal Viet electric utility company e Replace main board 69 Capacity Charging Malfunction PU Charging Malfunction of Capacitor Status During cooling mode compressor will stop indoor fan will run Heating mode all units stop Improper input voltage Poor connection on reactor Reactor damaged Bad AP1 control board pos Start Troubleshooting after unit is powered on for 1 minute Use a DC voltmeter to measure the voltage across the terminals of the electrolytic capacitor The detection circuit of the outdoor Replace outdoor main Voltage higher than 200v mainboard has board malfunctioned Check if the inductor wiring is loose or induction is cut off Shut down power and wait 20 minutes or
16. 1272 0678 u 2851 fes 454 3335 fus 290 06 12 156 2748 4 472 327 6 2408 62 a 54 2592 fe 1490 sios 17 2426 065 486 92 43 6 508 29 fus 2444 068 15 90 36 67 1526 296 19 2462 052 16 23 8 1544 297 00 2480 057 17 66 9 562 202 2498 061 18 64 2054 o 1580 261 12 2516 10547 19 62 195 71 252 123 2534 052 680 1875 2 66 49 2552 059 2 79 73 64 2358 05 12570 055 m gne m 4 62 248 06 288 042 ps 134 1639 5 160 7226 127 2606 044 24 52 58 6 43 08 2624 040 ps 170 fjs 7 1706 204 9 2642 046 26 748 46 8 1724 197 150 2660 04 pz 106 1374 9 142 195 131 2078 045 ps 1824 1346 0 1760 81 152 2696 42 po 82 126 js 1174 isu 53 74 oa 30 860 1207 09 1796 1754 i34 2732 oso 31 1878 157 js 69 1355 2750 0591 125 Appendix 2 Resistance Table of Outdoor and Indoor Tube Temperature Sensors 20K bedded dd 8 rA kO C F DU T 194 22 2 1814 4 33 914 4 14 1448000 85 185 1850 2 2125 TP i a7 14 121 fas 950 154 87 1886 196 16 32 53 6 968 25 8 194 194 18 fso 4 i 956 2 fe 1922 11875 4 68 192 ss 04 2 foo 1940 13 66 199 9 022 u
17. 1508 598 18 244 osu 15 0 47 6 526 3861 19 2462 077 16 3004 fes 1544 3729 0 769 17 66 2868 feo 1562 3603 0 746 18 64 29 10 11580 348i 0 729 19 62 267 Ji 1598 3364 0 71 20 680 250 2 1616 3252 0 692 2 59 15 164 s144 0 674 2 1746 225 74 62 304 0 658 2 Ba 24585 15 60 4 0 64 46 52 099 16 1688 284 0 623 ps Jo jo 17 11706 2502 0 607 Qe 148 194 18 11724 2663 0 592 pz 6 1843 19 11742 257 0 577 28824 155 fso 1760 245 0 563 9 842 168 14 178 245 33 214 0549 9 860 161 12 196 12399 134 2752 10535 81 878 153 es 265 is 2750 051 32 49 1 1832 2194 16 2768 059 127 Appendix 3 Resistance Table of Outdoor Discharge Temperature Sensor 50K ace dk ded C F kO C F C F kO m ee 23 5 160 724 Lm fasa mes a 752 fsa p 698 27 466 fzo s o 449 77 1706 16761 26 148 7058 6 178 4708 8 1724 6542 25 430 fesos 7 06 4507 9 1742 631 4 a2 eos s 4 45 so 1760 6129 233 94 5806 842 4134 178 599 02 76 5489 10 860 82 1796 5746 1 58 5166 4 878 99 ss 1814 5565 20 40 465 2 896 3638 182 539 19 22 5 33 fora asss 85 150 52 as 94 482 192 945 se 1868 506 17
18. 3 minutes Yes Are the wire connections Reconnect the wires on the compressor according to the wiring connected properly diagram Eliminate the malfunction Yes Is the unit overcharged Yes Charge the unit according The stop duration of the unit is not long enough the high to the Charging section of this manual and low side pressure of the system is not balanced restart it after 3 minutes Yes Eliminate the malfunction No Replace the outdoor main board Eliminate the malfunction hs No Replace the compressor End Troubleshooting 81 Troubleshooting 9 000 amp 12 000 Units Desynchronizing of compressor 1 Check the resistance of the compressor Status terminals and connections to the compressor During cooling mode compressor will stop indoor fan will run Heating mode all units stop Check for overcharge of refrigerant Check for correct voltage Check for dirty coils and filters Troubleshooting Procedure for Synchronizing Fault after Unit is Started Start Troubleshooting after unit is powered off for 3 minutes Are the compressor terminal connected properly Replace Control Board 1 Compressor Wires Illustration is for reference only actual model may vary Correct wiring problem Remove Malfunction Replace Compressor End Troubleshooting 82 Desynchronizing of Compressor During Operation H7 Desynchronizing of
19. 3S and blink 13 times During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation 1 Measure the voltage of position L and N on wiring board if the 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 AP1 if its normal theres malfunction for the circuit please replace the control panel AP1 61 9 000 and 12 000 btuh units Z 23 NN N N NO N 28 ON Malfuntiuon Name Voltage of DC bus bar is too low Compressor Min frequence in test state Compressor rated frequence in test state Compressor maximum frequence in test state Compressor intermediate frequence in test state Overcurrent protection of phase current for compressor Charging malfunction of capacitor Display Method of Indoor Unit Display Method of Outdoor Unit Indicator Display during blinking ON 0 5s and OFF 0 5s Operation Indicator Cool Indicator Heating Indicator OFF 3S and blink 21 times during during OFF 3S and blink 15 times Indicator has 3 kinds of display status and during blinking ON 0 5ws and OFF 0 5s Yellow Indicator 3S and blink 12 Red Indicator Green In
20. USA R ING Lm a l GW CONF IMAL TERRI Hal BLOCK E NN 1 Hs L 1 G zb RING XT IND 1 PFO zl L 1 d 1 4H OG L1 L2 db 1 Rn p 7 PON ER Ci Car Ce TAE E Elertrenlc EN k Y Y E BN EROAN VH W ITE n MOTOR REACTOR EU ELLE YE YELLOW D EL RO OUTDOOR LH IT TESH YELLOW GREEN c r 1 C2 CBB 5533458 WARNING Please don t touch any terminal SAT the voltage of terminal Mapy TESH PIDEZ and NDC is uo Eb T T py higher than to prevent the E SH SH 2k ic D risk of electrical shock orc orc my gl d RD gt n Pi Bg h 1 ER n 4 COMP y ri E DPA G DIM BLOCK BLOCK T SEMGUR DucC COPP Manual Freg B 2 COA INNER 12 15 P L a 2 POWER Eee cite L L Eleztranle url menn se EN BRAM ITE REACTOR ELI ELLIE YE OPT ORAL es EL ACE RD FET OUTDOOR TELL GREEN oe mule r 1 CEBEI C2 EE
21. as 32 fus 6 968 952 8 194 fissi 18 50 1087 7 96 40523 9 1922 1408 4 68 1029 8 1004 1862 902 1940 159 13 6 74 9 1022 27 94 198 52 12 104 22 fao 1040 1797 92 1976 02 Lu 2 875 fa 1058 755 99 194 124 10 0 8275 2 1076 52 4 202 20 9 fs 7843 45 4 zoss 9 00 fiin 8 06 4 4 m2 6791 6 248 46 714 05 js 130 1659 97 266 uo 686 212 6688 6 148 628 98 2084 fion 5 30 6546 47 66 608 9 2102 09 4 248 029 48 84 509 00 220 1009 3 66 548 9 1202 5589 fior 238 090 2 84 sssi fso 1220 59 02 2156 092 a foz 559 fsi 1238 s197 05 274 095 0 1320 4902 52 1256 4986 14 2192 098 1 66 55 1274 1482 05 210 0099 2 136 1292 14625 06 228 fosas 5 1374 24 5 190 46 07 246 10825 4 392 449 6 1328 424 08 264 082 5 3815 7 146 49 9 2282 079 6 1428 62 58 1364 59 10 2300 0798 7 46 5 9 1382 3848 2918 10737 8 1464 24 0 1400 szu 42 2336 077 1482 3138 ja 59 u3 2354 067 124 Appendix 1 Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units 15K C F kO C F kO C F 90 90 99 2 1436 sasa fua
22. at a low speed When the indoor ambient temperature is at or below the preset temperature the unit will operate in it previous running state When the indoor ambient drops to more than 4 F below the preset temperature the compressor will stop running then 30 seconds later the outdoor fan will stop the indoor fan will run at low speed Tpreset Previous running status Tamb Start cooling Tpreset 29 F gt 6 min 3 min gt 6 min _ Stop cooling compressor ose Vase Outdoor fan 7727 AL A Indoor fan Set faf sp s _ 16 Basic amp Protection Functions Basic Functions 3 Heating Mode Heating Process When the indoor ambient drops 4 F below the preset temperature the unit will start the heating cycle The outdoor fan compressor and 4 way valve will operate The indoor fan will operate in the Cold Air Prevention mode in which the indoor fan will have a 2 minute delay after the call for heating The indoor evaporator coil temperature must reach 104 F before the indoor fan will start this will prevent cold air from discharging from the indoor coil When the indoor evaporator coil temperature 15 gt 1049 the indoor fan will operate at low speed for 1 minute With 1 minute of operation or 2 minutes of no fan operation and the indoor evaporator coil temperature is gt 108 indoor fan will operate at its preset condition If the indoor a
23. blink 1 time OFF During cooling and drying operation compressor will stop after operating for about 3 mins while indoor fan will operate During heating operation the complete unit will stop after operating for about 3 mins All loads operate normally while operation frequency for compressor is decreased All loads operate normally while operation frequency for compressor is decreased 1 Outdoor temperature sensor hasn t been connected well or is damaged Please check it by referring to the resistance table for temperature sensor 2 The head head of temperature sensor hasnt been inserted into the copper tube Refer to the malfunction analysis overload high temperature resistant he input supply voltage is too low System pressure is too high and overload 9 Decrease OFF All loads operate Overload or frequency due 3S and 3S and normally while temperature is too to high air blink 9 blink operation frequency for high Refrigerant is discharge times twice compressor is decreased insufficient Malfunction of electric expansion valve EKV 20 Limit decrease OFF OFF All loads operate Poor air return in frequency due 3S and 3S and normally while indoor unit or fan speed to antifreezing blink 2 blink 2 blink 4 operation frequency for is too low times times times compressor is decreased 2 Voltage for DC bus bar is too high Z OFF 3S and blink 11 times OFF
24. compressor 1 Check the resistance of the compressor Status U terminals and connections to the compressor During cooling mode compressor will stop Check for overcharge of refrigerant indoor fan will run Heating mode all units stop 3 Check for correct voltage Troubleshooting Procedure for Synchronizing Fault During Operation Start Troubleshooting Are wire connections Is the outdoor fan working Wire per diagram properly proper Yes Yes Are there any airflow obstructions Replace Fan Fan Operating Yes Capacitor C1 Properly Yes No iro Replace Outdoor Fan 65 4 Motor No Correct voltage Is input voltage normal problem Yes Charge per Is unit overcharged installation manual Replace Control Board AP1 Malfunction corrected Replace Compressor Yes End Troubleshooting 83 Troubleshooting 9 000 amp 12 000 Units Start Is the Overload connections OK NO Yes Check the resistance between the two ends of the overload protector in ambient temperature Is the resistance below 1K Yes Is the wiring of the electronic expansion valve connected well Reconnect according to the wring diagram Replace the overload protector Check the coil of the electronic expansion valve per instructions in this manual Replace if faulty Eliminate the malfunction No Check the refrigerant status if there is leakage recharge according to this service manual Elimina
25. connect a DC voltmeter Replace the inductor Is the malfunction Yes to the electrolytic capacitor until the or reconnect wires corrected voltage is less than 20 v No Replace the outdoor mainboard End Troubleshooting 90 Troubleshooting 18 000 amp 24 000 Units Fault amp Status Possible Causes IPM Protection 1 Dirty indoor and outdoor coils Status 2 Faulty indoor or outdoor fans During cooling mode compressor will stop 3 High system pressure indoor fan will run Heating mode all units 4 Over charge of refrigerant stop Start Troubleshooting after unit is powered off for 3 minutes Are the compressor terminal connected properly Yes Check the compressor winding resistance Is the resistance normal Correct wiring Yes problem Test the isolation impedance between the three phases of the compressor and copper tubing Is the resistance above 500MO Replace Compressor Is Malfunction eliminated No Replace the outdoor mainboard End Troubleshooting 91 Troubleshooting 18 000 amp 24 000 Units Check the resistance of the compressor terminals and connections to the compressor Check for overcharge of refrigerant Check for correct voltage Check for dirty coils and filters mc Is the Overload connections OK Check the resistance between the two ends of the overload protector in ambient temperature Is the resistance below 1K No me M
26. fan state the resistance Overload will operate During for this terminal protection for H3 heating operation should be less than compressor the complete unit lohm 2 Refer to will stop operation the malfunction analysis discharge protection overload Ol OFF B illuminated Blink 73 Fault Displays Malfunction l sr ke reis d rr Nun blinking ON 0 5s and OFF 0 5s js A C Status Malfunctions i Running Cooling Heating D40 D41 D42 D43 System is abnormal IPM protection PFC protection Desynchronizing of compressor 3s and blink 4 times 3s and blink 5 times 3s and blink 6 times 3s and blink 7 times During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will Refer to the malfunction analysis overload high temperature resistant Refer to the malfun
27. outdoor unit 2 Connect appropriate hoses to manifold gauge vacuum pump and unit refrigeration connections 3 Evacuate the system until the micron gauge reads no higher than 350 microns 4 Close valve to vacuum pump if pressure does not rise above 500 microns after one minute the evacuation should be complete 5 If it does rise check for leaks and or evacuate longer 6 For refrigerant lines longer than 25 feet refer to installation instructions chart included with the unit installation manual for additional charge 26 m OO h 00 QE Charging Please refer to your units installation manual for proper charge If your lineset exceeds the chart below for your model additional charge may be required The charge must we weighed in with a refrigerant charging scale You can only add additional refrigerant to a new installation If a low or high charge is suspected you must reclaim the refrigerant then weigh in the correct amount per specifications including any additional for long linesets It is important to check for leaks before adding refrigerant 1 Determine addition refrigerant charge The RIO single zone units contain a factory charge adequate for up to a total length of refrigerant line as indicated in the chart below Additional refrigerant will need to be added for total lengths over the listed length Confirm the following chart with your installation manual for additional charge amo
28. panel right side plate TOR ee De DE me oe De RD en 2 Loosen the 5 screws holding the front panel LIS Disassembly of Outdoor Unit 9 000 amp 12 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly 5 Remove fan motor and axial blade 1 Remove the screws of the fan and then remove the axial blade along with motor assembly 2 Remove the 4 tapping screws holding the motor to the bracket Pull out wires and remove the motor Remove the two tapping screws holding the motor support then lift out support eka koya eka teka D Kok s Fan motor Am kd 6 Remove electric box 1 Loosen two screws 2 The partition plate has a hook on the lower side Lift and pull the partition plate to remove h 85 r3 I ATTE e Es Em Tk Dt oL LT NS E ona amus 114 Disassembly of Outdoor Unit 9 000 amp 12 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly 1 Loosen the two screws 2 partition plate has a hook on the lowers side Lift and pull the partition plate to remove Fartition plate 115 Disassembly of Outdoor Unit 9 000 amp 12 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly 8 Remove compressor 1 Remove 4 way valve and tubinge by un soldering
29. the figure at right Note Some models may only have 3 screws Step 2 Disengage the 3 hooks on the upper portion Step3 The front grille can now be separated from the main portion Note Disengage the hooks by pressing with a screw driver 108 Disassembly of RIO Indoor Unit 12 000 btuh Other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 6 Open electrical box Step 1 Disconnect the cable clamp Step 2 Remove the temperature sensor Disconnect the connection wires Remove the screw from the evaporator Remove wires from terminals Note Take care not to lose the thermistor clip Pat attention to the mounting of the thermistor L SERI replace in exact manner 7 Connecting Wires Step 3 Remove the screw holding the electrical box to the chassis remove electrical box 109 Disassembly of RIO Indoor Unit 12 000 btuh Other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly Hold button for 5 seconds to force a cooling operation for approximately 15 minutes 7 Remove tubing assembly Auxiliary piping Piping fixture m T q Ju Step 1 Remove tubing clamp Auxiliary piping Step 2 Adjust the tubing slightly Step3 Loosen the screws in the right and the left which hold the evaporator assembly Remove the evaporator assembly
30. to Outdoor Unit of Wires per Local Code Wire Size and of Conductors from Indoor to 14awg 4c Outdoor unit Comply with National Electric Code or Local Electric Code in selecting proper wire and circuit breaker size National Code or Local Code should supersede wire sizes above Note The manufacturer reserves the right to modify the design and or change the specifications without notice Please refer to specific installation manual for current information Physical amp Electrical Data cont a Model RIO09HP230V1A amp 1B RIO12HP230V1A amp 1B Power Supply 208230v 60Hz 208230V 60Hz System Performance 109 System Specifications Compressor Type 7 DCinverterdivenTwinRoay Net Gross Weight Indoor lb 19025 AT Net Gross Weight Outdoor BT Condenser Coil Type pr ff 1 4 3 8 Aa 3 8 Additional Refri erant mum D es FO o T So Wire Size to Outdoor Unit awg 14 14 of Wires per Local Code Wire Size and of Conductors from Indoor to 14awg 4c Outdoor unit Comply with National Electric Code or Local Electric Code in selecting proper wire and circuit breaker size National Code or Local Code should supersede wire sizes above Note The manufacturer reserves the right to modify the design and or change the specifications without notice Please refer to specific installation manual for curr
31. value Observe flashing LED of indoor outdoor unit for diagnostic information 4 Minutes after protection stop of motor the malfunction error code is shown In other situations the malfunction will be displayed by pressing the light button for 6 times within 4 seconds Fault Displays Display Method of Indoor Unit Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking ON 0 5ws and OFF 0 5s Operation Cool Heating Yellow Red Indicator Indicator Indicator Indicator Indicator High pressure OFF 3s protection of and blink system once Indicator Display during Malfuntiuon blinking ON 0 5s and OFF 0 5s Name A C Status Possible Causes During cooling and Possible reasons drying operation except 1 Refrigerant was indoor fan operates all superabundant 2 loads stop operation Poor heat exchange During heating including filth blockage operation the complete of heat exchanger unit stops and bad radiating environment Ambient temperature is too high Green Indicator Antifreezing OFF 35 OFF protection and blink 3S and twice blink 3 times During cooling and 1 Poor air return in drying operation indoor unit 2 Fan comporessor and speed is abnormal 3 outdoor fan stop while Evaporator is dirty indoor fan operates System block OFF 3 OFF The Dual 8 Code 1 Low pressure or refrigerant and blink 3S and Display will show E3 protection
32. will operate During heating operation the complete unit will stop During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop outdoor control panel 1 After the complete unit is deenergized for 20 mins check whether the thermal grease on IPM Module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly If its no use please replace control panel AP1 Supply voltage is unstable Malfunction Name Voltage of DC bus bar is too low Limit decrease frequency due to high temperature of module The four way valve is abnormal L a OFF lluminated Blink Fault Displays Indoor Unit Displaying Method Outdoor Unit Display LED Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s Running Cooling Heating D40 DA1 D42 D43 LED LED LED D5 D6 D16 D30 Indicator Display during blinking ON 0 5s and OFF 0 5s OFF 3s and blink 21 times During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop Allloads operate normally while operation frequency for compressor is decreased If this malfunction occurs during heating operation the complete unit will drop operation 1 Meas
33. 123 129 A Warning Installing starting up and servicing air conditioner can be hazardous due to system pressure electrical components and equipment location etc Only trained qualified installers and service personnel are allowed to install start up and service this equipment Untrained personnel can perform basic maintenance functions such as cleaning coils All other operations should be performed by trained service personnel When handling the equipment observe precautions in the manual and on tags stickers and labels attached to the equipment Follow all safety codes Wea safety glasses and work gloves Keep quenching cloth and fire extinguisher nearby when brazing Read the instructions thoroughly and follow all warnings or cautions in literature and attached to the unit Consult local building codes and current editions of national as well as local electrical codes Recognize the following safety information Warning Incorrect handling could result in personal injury or death Caution Incorrect handling may result in minor injury or damage to product or property A Warning electrical work must be performed by qualiifiec licensed electrician according to local and national codes as well mas the instructions provided in the manual e Before installing modifying or servicing the system the main electrical disconnect must be off There may be more than one disconnect switch Lock out and tag switch with a su
34. 2 These circuit diagrams are subject to change without notice please refer to the one supplied with the unit 40 24K Indoor Unit symbol Color symbol symbol OG ORANGE PROTECTIVE EARTH WHITE COMP COMPRESSOR YELLOW OVERLOAD RD RED 4YV AWAY VALVE BN BROWN BU X BLUE BK BAK TUBE TEMP ROOM TEMP RECEIVER AND SENSOR SENSOR DISPLAY BOARD DISPLAY MAGNETIC CONNECT I MG RING XT CABLE L 01521 DISP2 84 CON DUT BN D Y Y Apo PRINTED CIRCUIT BOARD DLITDODR UNIT SWING UD TR DUT TR IM 6361239337 41 24K Symbol Color symbol Symbol Indoor Unit ORANGE PROTECTIVE EARTH WHITE COMP COMPRESSOR YELLOW OVERLOAD RD RED 4YV 4WAYVANE BN BROWN BU X BLUE BK BAK 0 TUBE TEMP ROOM TEMP RECEIVER SENSOR SENSOR DISPLAY BOARD AY MAGNETIC CONNECT ING RING T ia DISP DISP2 gt r r Bl BK L DOM DUT Haree Mir ma A L PRINTED CIRCUIT BOARD e MG UD SWING MOTOR Aus MOTOR 29270 42 18 24K Y WARK ING Please don t touch any terminal when the voltage of terminal and 06 2 at is higher than X to prevent the risk of electrical shock o em ps SH EZ VIC 2 oF OF We Ey Rp nu 2 u T
35. 2 Low leakage 3 times blink 9 until the low pressure pressure protection times switch stop operation of system 3 Low pressure protection of compressor High discharge OFF 35 OFF temperature and blink 3S and protection of 4 times blink 7 compressor times During cooling and Please refer to the drying operation malfunction analysis compressor and outdoor discharge protection fan stop while indoor overload fan operates During heatin operation all loads stop During cooling and 1 Supply voltage is drying operation unstable 2 Supply compressor and outdoor voltage is too low and fan stop while indoor load is too high 3 fan operates During Evaporator is dirty heatin operation all loads stop protection and blink 3S and 5 times blink 5 times Overcurrent OFF 3S OFF 58 Fault Displays Indicator has 3 kinds of display Possible Causes status and during blinking ON 0 5ws and OFF 0 5s Indicator Display during Malfuntiuon blinking ON 0 5s and OFF 0 5s Name Display Method of Indoor Unit Display Method of Outdoor Unit A C Status Heating Yellow Red Green Indicator Operation Cool Indicator Indicator Indicator Indicator Indicator 10 11 High temperature resistant protection EEPROM malfunction Limit decrease frequency due to high temperature of module Malfunction protection of jumper Gathering refrigerant OFF 3S and blink 8 times
36. 24 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly 2 Remove grille and front panel l Loosen screws and remove the discharge grille 2 Loosen the screws holding the front panel loosen Front grille the clasp on the right side rotate to the left then remove the panel 3 Remove right and left side panels 1 Remove the screws holding the right side panel to the valve support and electric box then remove the panel 2 Loosen the screws holding the left side panel and remove panel 5555 119 Disassembly of Outdoor Unit 18 000 and 24 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly 4 Remove the axial flow fan 1 Remove the nuts holding the fan blade then remove the blade 2 Remove the four screws holding the motor disconnect the leading wire insert of the motor then remove the motor Remove the two screws holding the support then pull upward the support to remove 5 Remove the electric box 1 Remove the screws holding the electric box sub assembly loosen the wire bundle pull wires off of terminals then remove the electric box 120 Disassembly of Outdoor Unit 18 000 and 24 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly 1 Remove the screws holding fireproof electric box then remove box 2 Carefully remove sponge Avoid tearing spo
37. Dirty coils refrigerant overcharge and outdoor fan problems can cause this fault 5 Compressor Phase lacking Protection If one of the compressor phases are detected open before startup the compressor will enter phase locking protection he malfunction will be cleared after 1 min then the unit will try a restart If an error has been detected for 6 times continuously the compressor will lock out and will need to have power cycled The errors will be cleared after the compressor has run for 7 minutes continuously 6 Module Protection IPM Under module protection mode the compressor will stop When the compressor remains off for 3 minutes the compressor will resume operation If the module protection occurs six times in succession the compressor will remain off Power will need to be cycled to start unit This is a thermal protection for the indoor module 7 DC Buss Voltage Protection The software will monitor the DC bus voltage If voltage on the DC Bus is below 150 or over 420v the compressor will stop and the outdoor fan will stop in 30 seconds When the voltage on the DC bus returns to normal and the compressor has been off for 3 minutes the compressor will resume its operation 20 Basic amp Protection Functions 8 Communication Fault If the unit fails to receive correct signals for a 3 minutes communication fault will occur and the whole system will stop and a 6 will be displayed on the front panel of the indo
38. Exhaust Temperature lt 194 F Compressor off for 3 minutes minimum the compressor will restart Error Code 5 will be generated if the sensor is open or shorted Please refer to the troubleshooting section for more detailed information 55 Troubleshooting Outdoor Components This sensor is negative coefficient thermistor that will decrease in resistance as the temperature increases This sensor will monitor the temperature of the outdoor air The reading will be used by the inverter board to adjust frequency calculations Error Code F3 will be generated if the sensor is open or shorted Please refer to the troubleshooting section for more detailed information 56 Fault Displays Observe all electrical precautions during service of indoor and outdoor units During Static service serving nit without power applied wait 10 minutes before service units During dynamic service servicing while unit is energized be sure unit is properly grounded Troubleshooting procedure 1 Confirmation 2 Judgment of flashing LED of Indoor Outdoor unit 3 Check the part associated with the fault code Precautions A large capacity electrolytic capacitor is used in the outdoor unit controller inverter Capacitor should be discharged before attempting to work on board Electrical shock hazard will be present even after unit is disconnecte3d from power source Confirmation Confirm that the unit has proper voltage within 10 of rated
39. GREE Change for Life DUCTLESS SYSTEM Installation Service amp Troubleshooting Models RIOQ9HPII5VIA RIO12HP115V1A RIO09HP230V1A RIOO09HP230V1B RIO12HP230V1A RIO12HP230V1B RIO18HP230V1A RIO24HP230V1A Table of Contents ans 3 Model N rmberTde Ol 4 Electrical ud INED MUNDUS ME 5 7 Product REO HC RU EE 8 Refrigeration Cycdesand 9 13 Indoor X Ontd or 14 15 Pasie ron 16 21 Control OTN ecco uum AE EEE AE stage gene saci 22 25 Refrigerant Lines Connection Evacuating and a 26 29 listi ion uu ua 30 35 Joi To ODA umn 36 44 45 Troubleshooting InqooeCGompanmenm ae 46 47 Troubleshooting OutdoorCompoanentlsk 48 56 57 78 Toob o 79 105 S CSS so so 106 111 Disassembly of 9 000 amp 12 000 btuh Outdoor Sy Sten ie usur 112 117 Disassembly of 18 000 and 24 000 btuh Outdoor systems eese 118 123 Appendix 1 3 Temperature Sensor Resistance 136165 esee omine aet pida Kon rtu
40. H B3533455D1 These circuit diagrams are subject to change without notice please refer to the supplied with the unit 43 18 24K 2 ZIN WARNING Please don t touch terminal when the voltage af terminal Pioc and at is higher than to prevent the risk af electrical shack TERMI NAL BLOCK TEGN INDOOR UNIT 12 112 POWER BROWN WH WHITE BU BLUE YE YELLOW BK BLACK RD RED YEGN YELLOW GREEN 0G ORANGE 1 1 C2 GBB65 SHH SAT COMP EN uc comp NE YEGN E 2h 6 D EY BU y RD Y CL2 612 12 m m COMP U COMP V OUT TUBE TEMP SENSOR OUT TUBE TEM SENSOR OUT ROOM TEM SENSOR EXHAUST TEM SENSOR RTA Rr24 RD n A ay j MANUAL T SENSOR UN C COMP Manual Freg COME NNERCIT2 INDG2 PF08061 VT WH 06 YE 1 EV 01 i 02 X Lp Electronic OSS gt expansion FAN MOTOR REACTOR uS valve OPTIONAL Se OUTDOOR UNIT 6363345602 These circuit diagrams are subject to change without notice please refer to the one supplied with the unit 44 Compressor Heater Band N2 Voltage Terminal 4 Way Valve 9 2 ES ex s Fam Thermistor wires 45 Troubleshooting Indoor Components T
41. ISPLAY x UZ RECEIVER DISPLAY BOARD MOTOR These circuit diagrams are subject to change without notice please refer to the one supplied with the unit 38 Electrical Schematics 9K 12K 230V Outdoor Unit TUBE ROOM DISCHARGE TEMP TEMP TEMP L REACTOR SENSOR SENSOR SENSOR Y Y z d d RT2 RTS BU EN _ RR m u B mu u lt aM ma ua w v INDOOR UNIT OVC COMP BU BOARD 2 CLAPBOARD ELECTRICAL BOX SUB ASSY LYTT COMP BAND Y 7 YEGN FAN MOTOR OVERLOARD 5 GD COMP P These circuit diagrams are subject to change without notice please refer to the one supplied with the unit 39 Electrical Schematics ISK Symbol Color symbol gt Indoor Unit ORANGE PROTECTIVE EARTH RD RED 4YV BN BROWN BU X BLUE BK BAK TURE TEMP SENSOR TEMP SENSOR PAN MOTOR TERMINAL TERMINAL Or P BLOCK APe SWING UD HEALTH N YEGN GN RECEIVER AND NY BIRD MOTE EVAPORATOR ieh jui NUTEThe parts with broken line is applicable UNIT to the models with COOL PLASMA GENERATOR 6361266
42. N 0 5s and OFF 0 5s A C Status Malfunctions Name 0 55 Running Cooling Heating D40 D41 D42 D43 LED LED LED D5 D6 D16 D30 Decrease frequency due to high air discharge Voltage for DC bus bar is too high Malfunction of complete units current detection O OFF B illuminated Blink 72 OFF 3s and blink 9 times OFF 3s and blink 11 times OFF 3s and blink 13 times All loads operate normally while operating frequency for compressor is decreased During cooling and drying operation compressor will stop while indoor fan will operate During heating operating the complete unit will stop operation During cooling and drying operating the compressor will stop while indoor fan will operate During heating operation the complete unit will stop operating Overload or temperature is too high refrigerant is insufficient Malfunction of electric expansion valve EEV 1 Measure the voltage of position Land N on wiring board XT if the 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 AP1 if its normal theres malfunction for the circuit please replace the control panel AP1 Theres circuit malfunction on outdoor units control panel please replace the outdoor units control panel AP1 Fault Di
43. Operation Indicator Malfunction of module temperature sensor circuit Module high temperature protection Decrease frequency due to high temperature resistant during heating operation Static dedusting protection Overload protection for compressor System is abnormal Cool Indicator Heating Indicator OFF 3S and blink 18 times OFF 3S and blink 19 times OFF 3S and blink 10 times OFF 3S and blink 3 times OFF 3S and blink 4 times Indicator has 3 kinds of display status and during blinking ON 0 5ws and OFF 0 5s Red Indicator Yellow Indicator Green OFF 3S and blink 8 times OFF 3S and blink 6 times Indicator Display Method of Indoor Unit Display Method of Outdoor Unit A C Status During cooling and drying operation compressor will stop while indoor fan will operate During heating operationg the complete unit will stop During cooling and drying operation compressor will stop while indoor fan will operate During heating operationg the complete unit will stop All loads operate normally while operation frequency for compressor is decreased During cooling and drying operation compressor will stop while indoor fan will operate During heating operationg the complete unit will stop During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop op
44. Outdoor ambient temp sensor malfunction Red indicator blinks 6 times Outdoor exhaust temp sensor malfunction Red indicator blinks 7 times Starting at temperature does not reach Red indicator blinks 8 times Communication is not normal Green indicator does not blink 67 Fault Displays Indoor Unit Displaying Method Outdoor Unit Display LED Indicator Display during Indicator has 3 kinds of display status and blinking 0 55 and OFF 0 55 during blinking ON 0 5s and OFF 0 5s A C Status Malfunctions Running Cooling Heating D43 D40 D5 241 06 042 016 LED D30 During cooling Possible reasons and drying 1 Refrigerant was operation superabundant except indoor 2 Poor heat fan operates exchange OFF 3s all loads stop including filth D1 and blink operation blockage of heat once During heating exchanger and operation the bad radiating complete stops environment Ambient temperature is too high During cooling 1 Poor air return and drying in indoor unit OFF 35 operation 2 Fan speed is E2 and blink compressor abnormal 3 twice outdoor fan stop Evaporator is while indoor fan dirty operates During cooling Please refer to and drying the malfunction operation analysis High P y compressor and discharge discharge OFF 3s outdoor fan stop protection temperature D4 and blink un while indoor overload protection of 4 times fan operates compress
45. Troubleshooting 95 Unit Will Not Start B Power voltage low Ensure proper voltage should be withing 10 of nameplate Check fuses or circuit No power boda Poor electrical connection Check wire connections Controller fuse open Replace fuse Outdoor unit will not start Defective controller board Replace controller board Indoor and outdoor unit inoperative No power at remote controller Replace remote controller batteries Remote controller not responding Remote controller Jj malf ncion Press the Auto button If no response check for proper voltage and connections If there is a response check for defective remote controller or indoor receiver T Breaker trips Check for shorted wires Breaker trips within minutes Individual components of turning on could be defective Eliminate by checking resistance on each individual component Check insulation on wires and proper positioning of wires Indoor receiver defective Check for defective breaker poor wire connections Breaker is warm to touch 96 Troubleshooting 18 000 amp 24 000 Units Energize and start the unit No Is the stop duration of the compressor longer than 3 minutes Yes Are the wire connections Reconnect the wires on the compressor according to the wiring connected properly diagram Eliminate the malfunction Yes Is the unit overcharged Yes Charge the unit
46. according The stop duration of the unit is not long enough the high to the Charging section of this manual and low side pressure of the system is not balanced restart it after 3 minutes Yes Eliminate the malfunction No Replace the outdoor main board Eliminate the malfunction Ms No Replace the compressor End Troubleshooting 97 Troubleshooting 18 000 amp 24 000 Units Start Is the Overload connections OK No Yes Check the resistance between the two ends of the overload protector in ambient temperature Is the resistance below 1K Yes Is the wiring of the electronic expansion valve connected well Yes Replace the overloaq protector Check the coil of the electronic expansion Reconnect according to the wring diagram valve per instructions in this manual Replace if faulty Eliminate the malfunction iC No Check the refrigerant status if there is leakage recharge according to this service manual Y Eliminate the malfunction No Replace outdoor main board End Troubleshooting 98 PFC Malfunction correction for power factor HC PFC Power Factor Correction Protection Status 1 Check for damage to the reactor and PFC During cooling amp dehumidifying indoor unit capacitor of the outdoor unit operates while other functions stop During 2 Refer to troubleshooting procedure below heating operation complete unit stops
47. ak testing and evacuation before wiring to save time electrical connections can be completed while your vacuum pump is running Note The outdoor unit contains a refrigerant charge leave liquid and gas valves closed l After no leaks have been detected connect a vacuum pump to the outdoor unit 2 Connect appropriate hoses to manifold gauge vacuum pump and unit refrigeration connections 3 Evacuate the system until the micron gauge reads no higher than 350 microns 4 Close valve to vacuum pump if pressure does not rise above 500 microns after one minute the evacuation should be complete 5 fit does rise check for leaks and or evacuate longer 6 For refrigerant lines longer than 25 feet refer to installation instructions chart included with the unit installation manual for additional charge i nim 90 0 1 90 33 Installation Connect the Outdoor Wiring 115 volt unit shown B ND C ol w poc Fal ww we v Y 4 lt MAX x 2 rx P d I gt W gt r T 724 4 115 Volt unit 1 Remove the handle on the right side plate of the outdoor unit 2 Connect wiring from indoor unit to 1 2 3 amp ground being careful to match color code of indoor connections Repeat this for each indoor unit 3 Connect power wiring form outdoor disconnect to N Land ground 4 Check all connecti
48. an This button is used for setting fan speed in the sequence that goes from AUTO low medium high then back to auto 6 A Up amp Down Swing Press 34 button to start or stop up amp down swing function The remote controller defaults to simple swing condition Press button and Zl button at the same time at unit OFF to switch between simple swing and static swing 31 blinks for 2 seconds In static swing condition pressing 34 button the swing angle up amp down louver positions If the unit is turned off during swing operation the louver will stop at present position 7 Health Save Press HEALTH part of this button to turn on or off HEALTH function only for some model Pressing SAVE this button SE is displayed and the unit goes into SAVE operation mode Press SAVE button again to cancel SAVE function During SAVE operation the temperature and fan speed is not adjustable 8 Left amp Right Swing Press button to start or stop left amp right swing function The remote controller defaults to a simple swing position Press button and button at the same time at unit OFF to switch between simple swing and static swing MA blinks for two seconds In static swing position pressing button the swing angle will change positions 24 Product Introduction Remote Control Functions 9 X Fan Allows fan to run after cooling cycle to dry off the coil and inhibit the growth of bacteria and mildew Works with Auto m
49. compressor The temperature of the gas in monitored by the Discharge Temperature sensor and sent to the outdoor control panel B The hot gas is directed through the 4 way valve to the appropriate indoor coil making the line a hot gas line C The hot gas will enter the indoor coil and condense to a saturated mix as it travel through the coil and will be slightly subcooled D The refrigerant returns to the outdoor unit through the filter then through the metering device reducing the refrigerant to a low pressure liquid and will maintain the proper superheat E The cold refrigerant will travel through the outdoor coil evaporator and will pickup heat from the outdoor air This will cause the cold saturated refrigerant to flash to a saturated mixture which will be superheated to 10 degrees F The superheated vapor will travel through the 4 way valve to the accumulator which will prevent liquid floodback G The superheated gas will enter the compressor for another refrigeration cycle he control board will monitor the temperature and pressures and adjust the frequency of the compressor There are no pressure charts to evaluate temperature or pressures 13 Indoor Unit Components Indoor Unit Components RIO 12 000 btuh model Other RIO models may very slightly Indoor Circuit Board Fan Motor Indoor Tube Thermistor Swing Motor Ambient Temperature Sensor Note Component locations ma
50. cooling and drying operating compressor stops while indoor fan operates During heating operation the complete unit will stop operation Poor connection for the jumper cap on indoor units control panel please reinsert or replace the jumper cap 1 Room temperature sensor hasn t been connected well with indoor units control panel AP1 refer to the wiring diagram for indoor unit 2 Room temperature sensor is damaged please refer to the resistance table of temperature sensor 1 Room temperature sensor hasn t been connected well with indoor units control panel AP1 refer to the wiring diagram for indoor unit 2 Room temperature sensor is damaged please refer to the resistance table of temperature sensor Outdoor temperature sensor hasn t been connected well or is damaged Please check it by referring to the resistance table for the temperature sensor Fault Displays Indoor Unit Displaying Method Outdoor Unit Display LED Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s Running Cooling Heating D40 DA1 D42 D43 LED LED LED D5 D6 D16 D30 Indicator Display during Malfunction blinking 0 55 and OFF 0 55 Status Malfunctions Name Outdoor condenser temperature sensor is open short circuited Outdoor condenser temperature sensor is open short circuited Limit decrease frequenc
51. ction analysis IPM protection loss of synchronism protection and overcurrent protection of phase current for compressor Refer to the malfunction analysis Refer to the malfunction analysis IPM protection loss of synchronism protection and overcurrent protection of phase current for stop operation compressor OFF Illuminated Blink 74 Malfunction Decrease frequency due to high temperature resistant during heating operation Failure startup Malfunction of phase current detection circuit for compressor EEPROM malfunction Charging malfunction of capacitor lluminated Blink Fault Displays Indoor Unit Displaying Method Indicator Display during blinking 0 5s and OFF 0 5s OFF 3s and blink 10 times OFF 3s and blink 11 times OFF 3s and blink 13 times OFF 3s and blink 15 times OFF 3s and blink 17 times Outdoor Unit Outdoor Unit Display LED LED Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s p pon pin on an ff Allloads operate normally while operation frequency for compressor is decreased During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation During cooling and drying operation compressor will stop while indoor fan will operate
52. dicator Status During cooling and drying operation compressor will stop while indoor fan operate During heating operation the complete unit will stop During cooling and drying operation compressor will stop while indoor fan will operate During heating operationg the complete unit will stop operation During cooling and drying operation compressor will stop while indoor fan will operate During heating operationg the complete unit will stop Possible Causes 1 Measure the voltage of position L and N on wiring board XT if the 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 AP1 if its normal theres malfunction for the circuit please replace the control panel AP1 Showing durin min cooling or min heating test Showing during nominal cooling or nominal heating test Showing during max cooling or max heating test Showing during middle cooling or middle heating test Refer to the malfunction analysis IPM protection loss of synchronism preoteciton and overcurrent protection of phase current for compressor Refer to the part three charging malfunction analysis of capacitor Fault Displays 29 30 3 22 34 Malfuntiuon Indicator Display during blinking ON 0 5s and OFF 0 5s Name
53. e 3S and for turning blink 8 on the unit is times reached gi N Frequency limiting 3S and module blink 11 temperature times Normal 0 55 and blink Defrosting OFF Defrosting will occur Its the normal state 0 5S and in heating mode i blink Compressor will operate twice while indoor fan will i stop operation 66 Q3 D 9 000 and 12 000 btuh units If malfunction occurs corresponding code will display and the unit will resume normal until protection or malfunction disappears Compressor starts normal Yellow indicator blinks once Defrosting normal display of indoor unit Yellow indicator blinks twice Anti freezing protection normal disply of accor ann Yellow indicator blinks 3 times IPM Protection Yellow indicator blinks 4 times Overcurrent Protection Yellow indicator blinks 5 times Overload Protection Yellow indicator blinks 6 times Exhaust Protection Yellow indicator blinks 7 times Indoor Display of Overload protection of compressor Yellow indicator blinks 8 times outdoor unit Cooling dehumidfy or heating gt dropped ES Red indicator blinks once Exhaust temp gt dropped frequency Red indicator blinks twice Tube temp gt dropped frequency temperature Red indicator blinks 3 times lt dropped frequency temperature Red indicator blinks 4 times tube in Outdoor condenser temp sensor malfunction Red indicator blinks 5 times
54. e outdoor main board indoor unit resumes normal Yes Replace the main board of the malfunctioning indoor unit End Troubleshooting 100 Communication Malfunction of Outdoor Unit E6 Error Code continued Communication failure outdoor units De energize check the wire connections of indoor and outdoor units and power to outdoor unit N i Yes Are all connections correct 2 Correct connections r problem No De energize check the wire connection between the outdoor main board and the filter board for correctness Did this correct the Yes Are all connections correct Correct connections problem Did this correct the Correct connections problem No Is the connection wire broke Check to see if there is power input between the neutral wire and live wire of the outdoor main board The malfunction indoor unit resumes normal Replace the filter board of Did this correct the Yes mund P the outdoor unit i problem Replace the outdoor main board No Replace the indoor main Are units now communicating beard Yes End Troubleshooting 101 Miscellaneous Malfunctions Fan capacitor has open circuit or damaged eplace capacitor Replace motor Motor winding open Replace motor w Repair connection wire per Incorrect wiring or bad connection Ree schematic Fan capacitor has open circuit or damaged eplace capacitor Motor winding open Replace motor
55. ected Follow the following steps to ensure a quality leak proof installation Step 1 Refrigerant Line Connection Carefully bend and cut the tubing to prepare for flaring Use a flaring tool designed for R410a following the recommended manufacturer s procedure Tighten the flare nut to the indicated torque by using a spanner wrench and a toque wrench Connect the indoor unit first then the outdoor unit Use the 3 8 to 1 2 flare adapter if needed Note Over tightening flare nuts may damage flare connections and may cause leaks Tubing Size Torque foot pounds Torque inch pounds 1 4 10 13 124 159 220007 29 91 301 372 Indoor unit nino wa nut Piping Ce 36 45 434 540 20 60 pe Spanner 4 7 Step 2 System Leak Check Refrigerant lines should be pressurized prior to evacuating system to check for leaks Use only dry nitrogen with a pressure regulator for pressurizing unit Pressurize with 150 psi of dry nitrogen Apply soap and water to check whether the joints are leaky A leak detector may also be used for a leakage test Hint You may want to perform leak testing and evacuation before wiring to save time electrical connections can be completed while your vacuum pump Is running Step 3 System Evacuation Note The outdoor unit contains a refrigerant charge leave liquid and gas valves closed 1 After no leaks have been detected connect a vacuum pump to the
56. ed by the outdoor circuit board E The refrigerant leaving the metering device will be in a low pressure temperature saturated state This cold saturated refrigerant will move through the coil absorbing heat This liquid will flash to a vapor and will be superheated to about 10 degrees F Since this tubing is cold it must be insulated F The superheated vapor will be returned to the outdoor units 4 way valve G The refrigerant will flow to the accumulator not all models will have an accumulator where liquid and vapor are separated H The refrigerant will flow to the compressor and complete another refrigeration cycle The control board will monitor the temperature and pressures and adjust the frequency of the compressor There are no pressure charts to evaluate temperature or pressures 11 12 Refrigeration Cycles and Components Indoor Unit Sensor Heat Exchanger a Temperature kNNNN Outdoor Unit Heat Electronic Exchanger LEE LEE 4 way valve Temperature Sensor Discharge 9ilencer m Discharge C Temperature 5 Sdnsor Accumulator not g amp all sizes 2 H LI X I Refrigeration Cycles and Components A Hot gas is discharged from the
57. ed is too low due to anti for compressor is freezing decreased OFF B Illuminated Blink 78 Troubleshooting 9 000 amp 12 000 Units Is the indoor control board fastened securely and wired correctly Are the input voltages within 10 of rated value Energize the unit Proper Voltage between No Check power supply Yes Check connection on No Yes Repair connections No 5 system Yes operating properly indoor board Yes Replace indoor board Is system operating properly Replace indoor motor End Troubleshooting 79 80 Troubleshooting 9 000 amp 12 000 Units Temperature sensor malfunction Start Temperature Sensor F1 amp F2 will relate to indoor sensor faults F4 amp F5 will relate to outdoor sensor faults Is the sensor wire plug loose from control board Insert the plug correctly No Is problem corrected Is there a short or open circuit in the Yes wire or sensor Replace sensor or correct wire problem No Yes Is problem corrected Do the temperature sensor readings No Replace the sensor with appropriate part number compare to the resistance table in the Appendix Yes Is problem corrected Replace the controller with the same Yes part number End Troubleshooting Troubleshooting 9 000 amp 12 000 Units Energize and start the unit No Is the stop duration of the compressor longer than
58. ent temp sensor and mainboard terminal 2 Components in mainboard fell down leads short circuit 3 Indoor ambient temp sensor damaged check with sensor resistance value chart 4 Mainboard damaged 1 Loosening or bad contact of indoor evaporator temp sensor and mainboard terminal 2 Components on the mainboard fall down leads short cirtui 3 Indoor evaporator temp sensor damaged check temp sensor value chart for testing 4 Mainboard damaged Outdoor temperature sensor hasn t been connected well is damaged Please check it by referring to the resistance table for temperature sensor Outdoor temperature sensor hasn t been connected well or is damaged Please check it by referring to the resistance table for temperature sensor 9 000 and 12 000 btuh units Display Method of Indoor Unit Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking ON 0 5ws and OFF 0 5s Operation Cool Heating Yellow Red Indicator Indicator Indicator Indicator Indicator Possible Causes Indicator Display during Malfuntiuon blinking ON 0 5s and OFF 0 5s Name A C Status Green Indicator Outdoor discharge temperature sensor is open short circuited 16 7 Limit decrease frequency due to overload 18 Decrease frequency due to overcurrent OFF 3S and blink 5 times OFF 3S and blink 8times OFF 3S and blink 7 times
59. ent information Physical amp Electrical Data cont 0 Model RIO18HP230V1A RIO24HP230V1A Power Supply 208230v 60Hz 208230V 60Hz System Performance 109 System Specifications Compressor Tyee vertercrven Twin Rotary Net Gross Weight Indoor lb 259 3844 Net Gross Weight Outdoor 106 117 115 120 Condenser Coil Type ON 1 4 1 2 a 2 Additional Refri erant F TO o E r Wire Size to Outdoor Unit of Wires per Local Code Wire Size and of Conductors from Indoor to 14awg 4c Outdoor unit Comply with National Electric Code or Local Electric Code in selecting proper wire and circuit breaker size National Code or Local Code should supersede wire sizes above Note The manufacturer reserves the right to modify the design and or change the specifications without notice Please refer to specific installation manual for current information Product Introduction The RIO Ductless split heat pumps are single zone units available in size from 9000 btuh to 24 000 btuh providing heating and cooling All comfort settings are controlled by a remote control The RIO unit has many features to enhance comfort and efficiency The operation of these features will be explained later in this service manual Indoor Display Superior inverter technology is used to control capacity while ma
60. eration Possible Causes Replace outdoor control panel 1 After the complete unit is de energized for 20 mins check whether the thermal grease on IPM Module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly If its no use please replace control panel Refer to the malfunction analysis overload high temperature resistant 1 Wiring terminal OVC COMP is loosened In normal state the resistance for this terminal should be less than 1ohm 2 Refer to the malfunction analysis discharge protection overload Refer to the malfunction analysis overload high temperature resistant 63 Fault Displays Display Method of Indoor Unit Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking ON A C Status 0 5ws and OFF 0 55 Yellow Red Green Indicator Indicator Indicator Possible Causes Indicator Display during Malfuntiuon blinking 0 5s and OFF 0 5s Operation Cool Indicator Indicator Heating Indicator 35 36 27 38 29 40 64 protection OFF 35 and blink 5 times Module OFF temperature is 3S and too high blink 5 times Internal motor fan motor do not operate and blink 11 times OFF 3S and blink 7 times PFC protection Outdoor DC fan motor malfunction and blink 23 times 3S and blink 4 3S and blink 10 blink 14
61. fs 59 is 2354 07 50 Troubleshooting Outdoor Components e moe Sn NO 0 EM 1080 402141 t 21 lt Windings Red Yellow amp Blue Wires Slightly depress tab for Compressor Winding Resistance Check easy removal Remove the compressor wires from the circuit board The wires red to yellow yellow to blue amp red to blue should have readings from 2 4 ohms There should be no reading from any wire to chassis ground If the readings between the windings differ greatly the windings are bad If there is a reading from any wire to the chassis there is leakage in the windings The reactor filters out electrical noise and transient voltage spikes to the control board There will be a reading of less than 1 after the wires are removed There should be no reading from either reactor terminal to ground 51 Troubleshooting Outdoor Components Outdoor Motor Winding Resistance Check Disconnect power to the unit all reading are made with no power and fan motor wires disconnected from circuit board he chart below will indicate the approximate resistance values in ohms This motor is a brush less DC motor readings may vary slightly for different models Plugging a known good motor in the board would provide a quick troubleshooting technique 52 Troubleshooting Outdoor Components NT MAN 25
62. h the same part number End Troubleshooting 86 Yes Indoor fan does not operate Possible causes 1 Fan motor locked 2 The control or feedback terminal of PG not connected properly 3 Damaged motor 4 Main board malfunction Energize the unit Does fan turn freely Find obstruction Is the feedback terminal PG motor Repair connections loose Is the control terminal of P motorlioose Repair connections Re energize unit to turn unit on Measure within one minute after the louvers are opened whether the output Replace indoor voltage on the control terminal of the motor PG motor is gt 50 volts No Replace indoor board End Troubleshooting 87 Troubleshooting 18 000 amp 24 000 Units Jumper Cap Malfunction Status indoor unit Start Troubleshooting Is there a jumper cap on the controller Yes Wireless remote will not send command to No jumper cap inserted on board Jumper cap not fully seated Jumper cap damaged Bad control board 1 2 4 Install matching jumper cap Yes No 5 system Yes operating properly Is the jumper cap inserted correctly Yes No Replace the jumper cap Is system operating properly No Replace the main control board End Troubleshooting 88 Re insert the jumper cap Is system Yes operating properly Overcurrent Protection E5 Fault amp
63. imate values and may vary slightly with different outdoor models Blue 48 94 6 O 94 8 O 9440 4700 94 7 9440 47 5 9460 4770 47 4 Compressor Troubleshooting Outdoor Components Cooling Mode lt Condenser 6 4 Coil Discharge Checking the 4 way valve in cooling mode requires the measurement of 4 readings First record the temperature of the compressor discharge tubing secondly record the temperature of the tubing going to the condenser There should be no more than a 10 degrees difference between the two readings The next set of readings will require recording the temperature of the tubing going to the suction line and the temperature of the tubing going to the accumulator Again if there should be less than 10 degrees difference between these readings A temperature reading higher than 10 degrees may indicate a leaky valve not fully shifted or a blockage in the valve 4 Way valve solenoid resistance check To Accumulator Heating Mode lt Condenser E Coil Compressor Discharge Loc Checking the 4 way valve in heating mode requires the measurement of 4 readings First record the temperature of the compressor discharge tubing secondly record the temperature of the suction line tube There should be no more than a 10 degrees difference between the two readings The next set of readings will require recording
64. indoor hole Insert the piping hole sleeve into the hole to prevent the piping and wiring from being damaged when passing through the hole Unit mm 31 Installation Install Drain Hose 32 outlet pipe of indoor unit i Indoor unit cg nut Piping spanner 22 Toraue wrench 1 Connect the drain hose to the outlet pipe of the indoor unit using appropriate connections 2 Insulate the condensate to prevent condensation 3 Fasten the condensate lineset and wring together to prevent damage and movement Slant the drain hose downward for smooth drainage outlet pipe of indoor unit outlet pipe of drain hose indoor unit 1 Install lineset and wiring from the outside through the wall sleeve 2 Bend the indoor lineset Note a tube bender will speed up the process 3 Carefully remove flare nut from indoor coil Listen for holding charge from indoor unit No charge may indicate a leak and should be tested 4 Usea flaring tool if necessary to create the flare connect tubing tightening to the torque listed below 50 60 Installation Pressure and Leak Test Use only dry nitrogen with a pressure regulator for pressurizing unit Pressurize with 150 psi of dry nitrogen 2 Apply soap and water to check whether the joints are leaky A leak detector can also be applied for a leakage test Hint You may want to perform le
65. intaining maximum efficiency The RIO systems are equipped with G10 inverter technology providing precise control over the compressor frequency based on operating pressures and temperatures Should an abnormal condition occur the software will adjust the compressor frequency or shut down the system indicating the appropriate fault The indoor unit contains a digital display which will indicate the current fault The evaporator swing motors fan motors and circuit board are also components of the indoor unit The indoor units have Circuit Board with a on off switch to bypass the remote control if lost or G10 Technology batteries fail This will be explained later in this service manual The systems require R410A and are pre charged for 25 of lineset Please refer to your installation manual for additional charge for linesets longer than 25 he maximum allowable line lift and distances vary by model please refer to the charts in the manual for proper lineset applications The systems use a PVE oil and should require additional oil All RIO units utilize an Oil Return Mode which will return oil to the compressor should the need arise Compressor Refrigeration Cycles and Components ar UE Indoor Unit Strainer Temperature Sensor Heat Exchanger Temperature Sensor Heat Exchanger 5 6 25 Electronic Expansion Valve Discharge Sensor S
66. itable warning label Never supply power to the unit unless all wiring and tubing are completed reconnected and checked This system adopts highly dangerous electrical voltage Incorrect connections or inadequate grounding can cause personal injury or death Refer to your local and national codes for proper grounding Have the unit properly grounded with all connections tight Loose connections can cause overheating and a possible fire hazard A Caution Never install the unit in a place where a combustible gas might leak or it may lead to fire or explosion Make a proper provision against noise when the unit is installed at a telecommunication center or hospital Provide a GFIC circuit when the local or national electric code requires it Never wash the unit with water Handle unit transportation with care Use two people when the weight exceeds the capacity for one person Never touch the heat exchanger fins with bare hands sharp edges could cause personal injury Never touch the compressor or refrigerant tubing without proper hand protection Do not operate th unit without the air filters in place Should any emergency occur stop the unit and disconnect the electrical supply Properly insulate tubing running inside the room to prevent water damage from condensation A Warning All installation or repair work shall be performed by your dealer or a specialized subcontractor as there is the risk of fire electric shock exp
67. lay Possible Causes status and during blinking ON 0 5ws and OFF 0 55 Yellow Red Green Indicator Indicator Indicator Indicator Display during Malfuntiuon blinking ON 0 5s and OFF 0 5s Name Display Method of Indoor Unit Display Method of Outdoor Unit A C Status Cool Indicator Operation Indicator Heating Indicator 1 13 14 1 60 Indoor ambient temperature sensor is open short circuited evaporator temperature sensor is open short circuited Outdoor ambient temperature sensor is open short circuited Outdoor condenser temperature sensor is open short circuited OFF 3S and blink 1 time OFF 3S and blink 3 times OFF 3S and blink 4 times blink 6 times OFF 3S and blink 5 times During cooling and drying operation indoor unit operates while other loads will stop during heating operation the complete unit will stop operation AC stops operation once reaches the setting temperature Cooling drying internal fan motor stops operation while other loads stop operation heating AC stop operation During cooling and drying operating compressor stops while indoor fan operates During heating operation the complete unit will stop operation During cooling and drying operating compressor stops while indoor fan operates During heating operation the complete unit will stop operation 1 Loosening or bad contact of indoor ambi
68. liances 1 Select a suitable site where proper drainage will occur 2 Select a site where there is sufficient ventilation 3 Select a site where there is no obstruction blocking the inlet and outlet 4 The site should be able to withstand the full weight of the unit 5 Try to limit expose to direct sunlight or strong winds 6 Make sure that the outdoor unit is installed in accordance with the installations instructions and is convenient for maintenance and repair 7 Refer to your outdoor unit installation manual for maximum lineset lengths and heights This could be a factor in determining outdoor location Select a place where it is out of reach of children 30 Installation Mounting Plate Installation The mounting plate should be installed horizontally and level Measure the center of the indoor unit Please note that depending on model the center of the bracket may not correspond with the center of the unit Attach the mounting plate on the wall with screws Be sure that the mounting plate has been attached firmly enough to withstand approximately 132 pounds Refer to specific models for dimensional data he piping can exit the indoor unit from either side see pictured below Drill a 2 1 2 diameter hole at a slightly downward angle to the outdoor side Indoor Outdoor Note The outdoor hole should be approximately 1 4 pipe Seal Pad lower than the
69. losion or injury A Warning Pressurized Refrigerant Personal injury could result in failure to follow this warning Systems contain oil and refrigerant under high pressure proper refrigerant handling techniques should be completed by a qualified technician A Warning Live Electrical Components Personal injury property damage or death could result in failure to follow this warning Follow all electrical precautions when servicing this system it may be necessary to service or troubleshoot with live electrical circuits All work should be completed by a qualified technician Number Identification Product Catalog Number Nomenclature Example RIO24HP230V1AH RIO 24 HP 230V 1 A H S System O Outdoor H Indoor High Wall D Indoor Duct C Indoor Cassette Indoor Floor Ceiling RIO NEO TERRA Revision Level Style Color Designation 09 9 000 btuh 12 12 000 btuh 18 18 000 btuh 24 24 000 btuh AC Cooling Only HP Heat Pump HC Heat Cool 230V 208 20V 60Hz 1PH 115V 115V 60Hz IPH Physical amp Electrical Data cont a Model RIOOQHP115V1A RIO12HP115V1A PowrSupy neoe Rated Current Amps o0 60 o System Performance System Specifications Compressor Tyee C irverterdriven Twin Rotary Condenser Coil Tyee C l O 1 4 3 8 3 8 Additional Refri erant 8 8 1 LEE EL Wire Size
70. lve in cooling mode using a digital thermometer record the temperature of the input line and the output line of the valve as indicated in the picture above With the compressor running the input side of the valve should have a higher reading then the output side indicating that the valve is metering H the temperature readings are the same the valve is fully open and the valve is not metering Since the pressures and frequency are controlled by the G10 technology of the outdoor circuit board there are no pressure checks that can be made Heating Mode A 77 1 AN lt ra 4 ite Input Ed 3 e To check the operation of the EEV Valve in heating mode using a digital thermometer record the temperature of the input line and the output line of the valve as indicated in the picture above With the compressor running the input side of the valve should have a higher reading then the output side indicating that the valve is metering If the temperature readings are the same the valve is fully open and the valve is not metering Since the pressures and frequency are controlled by the 510 technology of the outdoor circuit board there are no pressure checks that can be made Resistance readings of EEV valve with wire plug disconnected from circuit board Power to unit should be off when making resistance readings Readings below are approx
71. mbient temperature is lt 9 F and gt 2 F of the preset temperature the unit will run in its original mode of operation If the compressor is running and the mode is changed from heating to cooling the compressor will stop the 4 way valve will be de energized 2 minutes later the outdoor fan will stop after a 1 minute delay If the indoor ambient temperature is gt 9 F than the preset temperature the compressor will stop and the outdoor fan will stop after a 30 second delay The indoor fan will continue to operate at its preset mode The G10 technology will determine compressor frequency based on ambient temperatures T t m ade n Stop heating preset 9 F EP IPS Previous running status Tpreset 2 F V amb 26 min 23 min 26 min Start heating Compressor 0 7777 Outdoor unit Blow residual heat Indoor unit 2 mi A aM 17 Basic amp Protection Functions Basic Functions Defrost Process You may force a defrost heat mode by pressing the and buttons alternately three times within 5 seconds 1 The unit will enter defrost when the following conditions are met A Outdoor ambient lt 41 F B Compressor had accumulated more than 3 hours of operation in heating mode C The outdoor coil lt 32 F Note compressor runtime will be cleared when the outdoor ambient is gt 41 F or when the compressor has started up after changing to co
72. n us Reconnect according to the electronic expansion valve wring diagram connected well 9 9 Replace the overload protector Check the coil of the electronic expansion valve per instructions in this manual Replace if faulty Eliminate the malfunction No Check the refrigerant status if there is leakage recharge according to this service manual Eliminate the malfunction No Replace outdoor main board End Troubleshooting 92 Desynchronize Malfunction continued next page H7 Desynchronizing of compressor 1 Check the resistance of the compressor Status terminals and connections to the compressor During cooling mode compressor will stop 2 Check for overcharge of refrigerant indoor fan will run Heating mode all units 3 Check for correct voltage stop 4 Check for dirty coils and filters Troubleshooting Procedure for Synchronizing Fault after Unit is Started Start Troubleshooting after unit is powered off for 3 minutes Are the compressor terminal connected properly Yes Replace Control Board 1 Correct wiring Remove Malfunction problem Replace Compressor End Troubleshooting 93 Desynchronize Malfunction continued H7 or compressor 1 Check the resistance of the compressor Md terminals and connections to the compressor During cooling mode compressor will stop Check for overcharge of refrigerant indoor fan will run Heating mode all u
73. nge when removing 1 Remove the screws holding the isolation sheet then carefully remove Note Notice how sheet is positioned for aid in replacing 121 Disassembly of Outdoor Unit 18 000 and 24 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly 1 Remove the screws holding the 4 way valve coil Properly remove refrigerant protect valve from heat damage and remove valve 2 Unsolder the tubing connecting the compressor and condenser assembly then remove the 4 way valve compressor 1 Remove the three foot nuts on compressor then carefully remove the compressor 122 Disassembly of Outdoor Unit 18 000 and 24 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly 10 Remove condenser sub assembly 1 Remove the screws connecting the support gt condenser and condenser assembly then remove the support support condenser sub assy 2 Carefully remove the chassis sub assembly and condenser sub assembly dE ia Er icc SUA e chassis sub assy 123 Appendix 1 Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units 15K ee ee od ee C F kO C F kO C F kO 19 22 fissi 9 94 05 ss 1850 154 as 94 1286 932 02 1868 fiss 7 fpa 5 950 9279 87 1886 11497
74. nits stop 3 Check for correct voltage Troubleshooting Procedure for Synchronizing Fault During Operation Start Troubleshooting Are wire connections Is the outdoor fan working Wire per diagram properly proper Yes Yes Are there any airflow obstructions Replace Fan Fan Operating Yes Capacitor C1 Properly Yes No Pm Replace Outdoor Fan Yes Motor No Correct voltage Is input voltage normal problem Yes Charge per Is unit overcharged installation manual Replace Control Board AP1 Malfunction corrected Replace Compressor Yes End Troubleshooting 94 Troubleshooting 18 000 amp 24 000 Units High Discharge Temperature Protection of Compressor Status Cooling operation compressor stops while indoor fans runs Heating operation complete unit stops Is unit running in proper outdoor ambient range Faulty outdoor temperature sensor Refrigerant leak Poor airflow of outdoor unit Follow Troubleshooting procedure IM Start Troubleshooting Normal protection outdoor Is outdoor temperature above 127 F ambient is higher than normal parameters Remove power then restart after 20 minutes Are indoor and outdoor coils clean i 2 Clean Coils and free from obstructions Yes Check fan for obstruction Are indoor and outdoor fans Check resistance of fan motor Check fan connections Yes Replace AP1 control board Replace fan End
75. o check the condition of the indoor fan motor voltage measurements and resistance measurements can be compared to the following charts Care must be taken when checking voltage measurements all wires and terminals must be isolated for safety Resistance measurements must be taken with power off and PG connector removed from the circuit board The following chart indicates approximate voltage measurements readings may vary slightly depending on models and should be used as a reference only Voltages should be taken with unit running The following chart indicates approximate resistance measurements readings may vary slightly depending on models and should be used as a reference only Turn power off and remove connector from circuit board before reading measurements PG Wire Connector Resistance ohms Brown White 1740 White Red 46 LL Indoor Component Step Motor Troubleshooting To check the condition of the indoor step swing motor resistance measurements may be compared to the following chart Resistance measurements must be taken with power off and the connector removed from the board The following charts indicate approximate readings and may vary with diflerent models Turn power off and remove connector from circuit board 570 402 Q 400 Q 198 x Pink 400 402 Q 198 4020 198 47 Troubleshooting Outdoor Components Cooling Mode To check the operation of the EEV Va
76. ode 10 Temp Button Toggles the display between set temperature indoor temperature and outdoor temperature 11 Timer On Button Press TIMER button at unit ON to set TIMER OFF HOUR OFF blinks Press TIMER button at unite OFF to set TIMER ON HOUR ON blinks In this case pressing button changes time setting Holding down either button rapidly changes time setting time setting range 0 5 24 hours Press TIMER button again to confirm setting HOUR ON OFF stops blinking If there is not any operation of button within 5 seconds during HOUR ON OFF blinking TIMER setting will be canceled 12 Turbo Button Boost the cooling or heating airflow allowing the unit to reach the preset temperature in the shortest amount of time 13 Sleep Button Press this button to go into the SLEEP operation mode Press it again to cancel this function This function is available in COOL HEAT Only for models with heating function or DRY mode to maintain the most comfortable temperature for you 14 Light Button Turns the light on the indoor display on and off 15 Combination of and Buttons Press and buttons simultaneously to lock or unlock the keypad 16 Combination of Mode and Buttons Press Mode and buttons simultaneously will switch between Fahrenheit and Centigrade 25 Refrigerant Lines Preparation amp Connection The refrigerant lines should be kept sealed until ready to be conn
77. oling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop Possible Causes To protect the electronical components when detect high power Indoor unit and outdoor unit doesn t match Refer to the malfunction analysis Replace outdoor control panel 1 Supply voltage is unstable Theres circuit malfunction on outdoor units control panel AP1 Please replace the outdoor unit control panel 65 Fault Displays 2 Display Method of Indoor Unit Display Method of Outdoor Unit 2 2 Status Possible Causes Malfuntiuon blinking ON 0 5s and OFF 0 5s 0 5ws and OFF 0 55 Operation Cool Heating Yellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator The four If this malfunction 1 Supply voltage is way valve is 3S and occurs during heating lower than 175 2 abnormal blink 20 operationg the Wiring terminal 4V is complete unit will stop loosened or broken 3 operation 4V is damaged please replace 4V Name Zero crossing OFF 35 During cooling Replace outdoor control malfunction of and blink operation compressor panel AP1 outdoor unit 18 times will stop while indoor fan will operate during heating the complete unit will stop operation 4 Frequency limiting c Compressor running The temperatur
78. oling or drying mode and defrost has finished The runtime will not be cleared when the unit has stopped after reaching the setpoint temperature a protection fault or changing to fan mode There 3 perimeters used the defrost algorithms Outdoor ambient Toutdoorambient Outdoor tube Toutdoortube and a calculated Tcompensation T compensation is calculated the following D After power up for the first defrost Tcompensation 32 F E Toutdoortube gt 36 F then Tcompensation 32 F F Toutdoortube lt 36 F then Tcompensation 2379 p 2 When heating has operated continuously for 45 minutes or accumulated for 90 minutes the unit will enter defrost mode in 3 minutes after meeting any of the conditions below A Outdoor ambient gt 41 F and outdoor coil lt 28 F B 28 F lt Toutdoorambient lt 41 F Toutdoortube Tcompensation lt 21F 23 F lt Toutdoorambient lt 28 F lt Toutdoortube Tcompensation lt 18F D 14 F lt Toutdoorambient lt 23 Toutdoortube Tcompensation lt Toutdoorambient 37 F E Toutdoorambient lt 14 E Toutdoortube Tcompensation lt Toutdoorambient 37 F 3 During defrost if run time for the compressor does not reach 3 minutes the defrost cycle will not start for the next 2 hours At that time the compressor stops operation and 30 seconds later the outdoor fan will stop 30 seconds after this the 4 way reversing valves will de energized Foll
79. ons to tightness 5 Reinstall the cover handle Note Follow all local electrical codes for electrical wiring 240 Volt unit 1 Remove the handle on the right side plate of the outdoor unit 2 Connect wiring from indoor unit to 1 2 3 amp ground being careful to match color code of indoor connections Repeat this for each indoor unit 3 Connect power wiring form outdoor disconnect to L1 L2 and ground 4 Check all connections to tightness 5 Reinstall the cover handle Note Follow all local electrical codes for electrical wiring 34 Filter Maintenance and Emergency Operation Cleaning Air Filter 1 Lift open the front panel as shown on the picture 2 The first stage filter can be cleaned with vacuum cleaner or by washing with a mild soap and 113 F water 3 he 2nd filter can be washed use a vacuum cleaner to clean any dust lint etc 4 Throughly dry filters before replacing in unit Ist Stage Filter Removable 2nd Stage Filter 35 9K 12K 115V Indoor Board TEM SENSOR SENSOR NEN OUTDOOR UNIT 21521 DISP TERMINAL 80 BN BROWN BLACK BU BLUE YE YELLOW YEGN YELLOW GREEN FAN MOTOR WING MOTOR d D 65652184 LN IT These circuit diagrams are subject to change without notice please refer to the one supplied with the unit 36 9K 12K 115V Outdoor Unit Symbol
80. oor Unit 12 000 btuh Other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly Hold button for 5 seconds to force a cooling operation for approximately 15 minutes 1 Remove air filters Step 1 Lift cover upward to lock open 2 Remove filter Air filter Step 1 Lift center of air filter outward Step 2 Remove air filter by pulling forward Left and right filters are interchangeable To reinstall insert air filter along the guide 106 Disassembly of RIO Indoor Unit 12 000 btuh Other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 3 Open front panel Step 1 Slide axial bushing and remove bushing Bend the horizontal louver slightly and remove Step 2 Lift front panel upward until it locks into place Slightly press left hinge inward to release from socket Step 3 Very carefully lift and slide cover to the left and remove 107 Disassembly of RIO Indoor Unit 12 000 btuh Other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly Hold button for 5 seconds to force a cooling operation for approximately 15 minutes 4 Remove service cover Step 1 Remove screw holding service cover in place then remove cover 5 Remove front grille assembly Step 1 Remove 5 screws as shown in
81. or l During heating operation all loads stop During cooling 1 Supply voltage and drying is unstable 2 operation Supply voltage compressor and 15 too low and ME tdoor fan stop load is too high outdoor fan stop load is too high ES and blink m P while indoor 3 Evaporator is 5 times fan operates dirty During heating operation all loads stop Malfunction High pressure protection of system Anti freezing protection Overcurrent protection OFF B Illuminated Blink 68 Fault Displays Indoor Unit Displaying Method Outdoor Unit Display LED Indicator Display during Indicator has 3 kinds of display status and blinking 0 5s and OFF 0 5s during blinking ON 0 5s and OFF 0 5s A C Status Malfunctions Running Cooling Heating D40 D5 D41 D6 D42 D16 D43 D30 LED LED LED During cooling Refer to the and drying corresponding operation malfunction compressor analysis OFF 3s and outdoor and blink fan stop while 6 times indoor fan operates During heating operation all loads stop Operation Control board of remote is damaged OFF 3s controller or and blink control panel 17 times is available but the unit wont act The complete Poor unit will stop connection for operation PGF in circuit diagram Malfunction and blink of indoor 11 times units control panel Malfunction of indoor units motor M1 During cooling Refer to the and drying corre
82. or unit 21 Remote Control Operation Remote Buttons Note his remote control is used in other models and some features may or may not be available Consult the owners manual for specific features for your model There should be no obstructions between the remote SUTE control and the indoor unit for proper operation Keep the OPER remote from direct sunlight or any source that generates AIR HEALTH X FAN heat keep clean and dry Change batteries frequently N ied ie Note os FILTER KE 70 For detailed explanation of the functions refer to the aa C Other Controls section of this manual for your model HOGLIE lt N Button Identification gt M The function and operation of each button will be explained later in this manual under Product Functions On Off button Mode press to select desired operation Decrease temperature Increase temperature Fan press to select fan speed Swing angle button up amp down Health Save button not available on all models Swing angle button left amp right X Fan button di M RE P s Dp gt 10 Temperature Display Timer Button Turbo Fan Button Sleep Button Light Button jum p N E Q Ree NC TIMER ETT 3 SLEEP m QJ Press mode and buttons to switch between Fahrenheit amp Centigrade Press amp to lock control 22 Display Icons 15 16 17
83. os fo 1958 176 12 104 7235 M0 1040 162 2 96 in a 22 5 ja 1058 2 fos 194 168 1 0 140 fuos 42 1076 983 fos 2012 1609 L9 58 6 M3 1094 42 J 2030 isei s 76 943 js 112 904 fo 248 11515 7 14 4 145 150 895 97 266 1147 686 212 47 46 48 s37 98 2084 147 85 50 47 166 sosi 9 202 56 4 248 sosi jas 1084 745 fioo 220 11346 9 6 64 49 1202 743 fioi 298 1307 2 456 za 0 20 7075 02 256 129 a 2 89 258 695 105 274 29 0 90 6537 2 1256 6648 14 292 198 1 1338 62135 1274 6405 fios 220 4640 2 356 8 4 1292 e167 fios 228 i31 _ 5 374 569 ss 10 s942 07 246 109 4 392 5486 6 1528 56 fios 264 1069 5 5097 7 146 59 9 282 109 6 08 82 ss 1364 s32 fuo 290 roi 7 46 jeu 9 1382 s13 Jin 2318 099 8 1464 492 60 1400 44 12 2336 096 1482 jas 1 for 473 13 2354 093 _ 126 Appendix 2 Resistance Table of Outdoor and Indoor Tube Temperature Sensors 20K eas ae ee ed ee C F kO C F kO C F kO 10 90 7 2 456 465 fis 1272 094 u ssor 63 1454 4453 fus 290 088 12 56 36 24 64 11472 429 6 408 086 11 54 3457 165 40 414 7 2426 083 14 572 32 16
84. ose or hitting sides Tighten and adjust Remove object Water leakage Foreign object in indoor unit Abnormal sound and or shake Adjust support washer of Compressor vibrating or shaking f compressor and tighten screws Outdoor tubing touching Reroute and adjust the tubing Inner plates touching Adjust plates isolate with insulation Outdoor louver touching outer case Adjust louver Abnormal sound inside compressor Replace compressor 104 General Troubleshooting Improper installation bad unit ventilation not level direct sunlight Check for proper installation per etc manual Ambient temperature too high Check for operational limits Filters or coils dirty Clean indoor coils filters and outdoor coils Indoor or outdoor fans not Check fan settings and controller operating at correct speeds board Compressor running too hot stops and starts frequent Measure incoming power Should prop g be within 10 of nameplate Refer to charging procedures check for leaks if charge is low Refrigerant Incorrect refrigerant charge must be weighed in by using a charging scale pressure charts are not available Check U V W wire connections as well as all power connection to and from board and components Poor component wiring connections C Ifuncti Check resistance of compressor ompressor malfunction samen taba wee ues Check for unusual noise within compressor 105 Disassembly of RIO Ind
85. owing another 30 second delay the compressor will increase its compressor speed for defrosting Defrosting will last for 450 seconds or until the Toutdoortube gt 50 E at this temperature the compressor will decrease it compressor speed for 30 seconds then will stop In another 30 seconds the 4 way valve will energize the 60 seconds later the compressor and outdoor fan will start Ihe compressor speed for defrosting will be 85hz During Defrost mode a H1 will be displayed on the indoor front panel display indicating the user selected mode has been overridden and the system is performing a outdoor coil defrost operation 4 Defrost Sequence When a defrost condition has been met the compressor will stop all expansions valves will open fully the outdoor fan will stop 40 seconds after the compressor stops The 4 way valve will reverse direction cooling mode then the compressor will start and enter the defrost frequency The control board along with ambient sensors will calculate defrost time 5 Return Oil return condition can be met if the unit operates at a low frequency for an extended time The indoor display will indicate H1 for this condition and is a normal procedure 18 Basic amp Protection Functions Basic Functions Cold Air Prevention Heating mode with compressor running The system guards against discharging cold air in heating mode It will delay the indoor fan until the evaporator coil has warmed
86. r 30 seconds 4 Fan Mode Under this mode the fan will run at the preset speed and the outdoor fan compressor and 4 way valve will stop 5JAuto Mode Auto Mode Process Setting the auto mode will run the unit in heat or cool automatically depending on Tindoorambient 1 Operating Parameters A If the Tindoorambient gt 79 F the unit will operate in cooling mode The set temperature is 77 F B If the Tindoorambient lt 72 F the unit will operate in heat mode The set temperature is 68 F C When the Tindoorambient lt 73 F and gt 77 the unit will operate in the previous state If it is energized for the first time it will run in Fan mode D In auto mode the cooling frequency will be the same as the cooling only mode and the heating frequency will be the same as the heating only mode 2 Protection A In cooling operation protection is the same as the cooling only mode B In heating operation protection is the same as the heating only mode C When the indoor ambient temperature changes the operation mode will be automatically selected Once started the compressor will have a 6 minute runtime 19 Protection Functions Common Protection Functions and Fault Displays Coil High Temperature Protection Ttube measured temperature of outdoor coil in cooling mode measured temperature of indoor coil in heating mode 1 Outdoor Coil High Temperature Protection In cooling mode the software will monitor the outdoor coil fo
87. r an abnormal high temperature condition A If Ttube lt 126 the unit will return to its original operation state B If Ttupe gt 131 frequency rise is not allowed C If Ttube gt 136 F the compressor will run at reduced frequency D If Ttube gt 144 F the compressor will stop and the indoor fan will operate at preset speed 2 Indoor Coil Temperature Protection In heating mode the software will monitor the indoor coil for an abnormal high temperature condition A If Ttube lt 122 the unit will return to its original operation state B If Ttube gt 127 frequency rise is not allowed C If Ttube gt 133 the compressor will run at reduced frequency D If Ttube gt 140 F the compressor will stop and the indoor fan will blow residual heat and then stop 3 Compressor Discharge Temperature Protection The software will monitor the compressor discharge for an abnormal high temperature condition A If Ttube gt 208 F frequency rise is not allowed B If Ttube gt 217 F the compressor will run at reduced frequency C If Ttube gt 230 E the compressor will stop D If Ttube lt 194 F and the compressor has been off for at least 3 minutes the compressor will resume operation 4 Compressor High Pressure Protection Not available on 115v 9k amp 12k models When the high pressure switch is detected for 6 seconds or more the compressor will stop and can only be started by powering off the unit
88. splays Indoor Unit Displaying Method Outdoor Unit Display LED Indicator has 3 kinds of displ Indicator Display during m i Malfunction status during blinking blinking ON 0 5s and OFF 0 5s A C Status Malfunctions Name 0 5s and OFF 0 5s i Running Cooling Heating D40 D41 D42 D43 LED LED LED D5 D6 D16 D30 During coolingand Theres circuit drying operating malfunction on the compressor will outdoor units stop while indoor fan control panel AP1 Malfunction of OEE 3s will operate During please replace complete units US and blink heating operation the the outdoor units current detection 13 times complete unit will control panel AP1 stop operating During cooling Refer to the drying operating malfunction analysis the compressor will IPM protection Overcurrent OFF 3s stop while indoor fan loss of synchronism protection of 5 and blink will operate During protection and phase current for 15 times heating operation the overcurrent compressor complete unit will protection of stop operating phase current for compressor Defrosting will Its the normal state occur in heating mode Compressor Defrosting HI will operate while indoor fan will stop operation Static dedusting H2 protection During cooling and 1 Wiring terminal drying operation OVC COMP is compressor will stop loosened In normal OFF while indoor
89. sponding operation malfunction compressor analysis OFF 3s and outdoor and blink fan stop while 8 times indoor fan operates During heating operation all loads stop 69 Malfunction Communication Malfunction Circuit PG motor indoor fan has circuit malfunction by zero cross detection PG motor indoor fan motor does not operate temperature resistant protection OFF B Illuminated Blink Fault Displays Malfunction Name Malfunction protection of jumper Indoor ambient temperature sensor is open short circuit Indoor evaporator temperature sensor is open short circuited Outdoor ambient temperature sensor is open short circuited bulsapi ay dinins Indicator nee 3 nee of display status pus blinking ON 0 5s and OFF 0 5s a A C Status Malfunctions Code OFF 0 55 Display Running Cooling Heating D40 D41 D42 D43 and blink 15 times OFF B illuminated Blink 70 OFF 3s and blink once OFF 3s and blink twice OFF 3s and blink 3 times The complete unit will stop operation During cooling and drying operation indoor unit operates while other loads will stop during heating operation the complete unit will stop During cooling and drying operation indoor unit will operate while other loads will stop During heating operation the complete unit will stop operation During
90. te the malfunction NO Replace outdoor main board End Troubleshooting 84 Troubleshooting 9 000 amp 12 000 Units Communication Failure Status Cooling operation compressor stops while indoor fans runs Heating operation complete unit stops Improper voltages Mis matched indoor and outdoor units Improper wiring between indoor and outdoor units N Communication failure of some units De energize check the wire connections of indoor and outdoor units and power to outdoor unit Are all connections No Did this correct the Yes Correct connections correct problem NO De energize change the communication wire of the working communication indoor unit and malfunctioning non communicating indoor unit then energize the unit and wait for 3 minutes ABE Replace outdoor main board indoor unit resumes normal Yes Replace the main board of the malfunctioning indoor unit End Troubleshooting 85 Troubleshooting 18 000 amp 24 000 Units Start Temperature Sensor Troubleshooting Is the sensor wire plug loose from Yes the control board Insert the plug correctly No Is there a short or open circuit in the Yes wire or sensor Replace sensor or correct wire problem No Do the temperature sensor readings No compare to the resistance table in Replace me ene the Appendix appropriate part number Yes Replace the controller wit
91. the temperature of the tubing going to the condenser coil and the temperature of the tubing going to the accumulator Again if there should be less than 10 degrees difference between these readings A temperature reading higher than 10 degrees may indicate a leaky valve not fully shifted or a blockage in the valve Be sure all power is off to the unit Remove the plug connecting the 4 way vale to the circuit board Check the resistance with an ohmmeter The reading should indicate 1 8k If the reading is infinite replace the solenoid coil 49 Troubleshooting Outdoor Components Temperature Sensor Using a glass of ice water place the sensor into the glass with a digital thermometer Wait a few minutes for the reading to stabilize Compare the readings to the sensor tables in Appendix A5 it the reading are not comparable replace the sensor When replacing the sensor be sure to fasten the sensor securely if it is attached to a tube ee ee ee CN F kO C F kO C F IT 320 149 02 2 1156 496 fioa 2192 0898 53 1274 1482 1105 220 10875 21356 14 11292 465 fios 228 0 848 5 1374 Jeu s 11310 446 107 246 0825 4 1392 409 6 1128 494 fios 2264 osoz 5 3815 57 346 49 19 2282 079 6 08 3632 8 1364 99 fio 2300 1078 7 46 3458 9 1382 fasas 2318 1077 8 4 329 0 1400 fazu 12 7256 07 9 1482 3138
92. the indoor temperature is satisfied the compressor will stop then 30 seconds later the outdoor fan will stop When the cooling mode transfers to heating mode the 4 way valve will be energized after a two minute compressor delay Evaporator Freeze Protection he software will monitor the indoor evaporator coil form freezing The following will occur 6 minutes after the compressor has been operating in the cooling or dry mode If the evaporator temperature drops below 36 F the compressor will operate at a reduced frequency If the evaporator is below 30 F for 3 minutes the compressor will stop 30 seconds later the outdoor fan will stop In cooling mode the indoor fan and swing motor will remain on If the evaporator temperature is gt 50 F and the compressor is off for at least 3 minutes the compressor will resume its normal operation state Overcurrent Protection he software will monitor the compressor current to maintain it in a safety and reliable operating range If the total current is greater than the rating the compressor will stop the outdoor fan will continue to run for 30 seconds then stop 2 Dry Mode Drying Process This feature will not take the place of a dehumidifier it is intended to dry the filter and slightly cool the air If the indoor ambient temperature is greater than the preset temperature the unit will enter the cooling and drying mode in which case the compressor will operate and the indoor fan will run
93. unts RIOO9HP115V RIO12HP115V RIOO9HP230V RIO12HP230V 1A 1A 1A amp 1B 1A amp 1B Additional Charge Max Length without Additional Charge 25 ft 25 ft 25 ft 25 ft Factory NIMM 3530 3 oz 3530 3 oz 26 10 1 oz 3530 3 oz bench RIO14HP230V RIO24HP230V 1A 1A Additional Charge 0 2 oz ft Max Length without Factory 45 4590 07 54 70 7 07 27 Refrigerant Charging Procedure Follow the procedures for leak testing with nitrogen prior to adding charge on a new installation or existing one suspected for leaks See preceding page 5 16 x 1 4 adapter may be required to connect hose to port Check to insure that the liquid and gas valves are closed on the unit Close all valves on your gauge set then connect the vacuum pump to your gauge set Pump down lineset and indoor unit This step will be repeated for all zones Place the refrigerant tank on the charging scale Open the tank valve turn on the scale then zero the scale Refrigerant Charging Procedure cont Charging should be completed with the unit off not running and through the liquid side with liquid refrigerant If there are no ports on the liquid side use the gas side port connection charging with liquid Record the amount of additional charge for future reference If the scale was zeroed with the refrigerant tank on the scale the amount added to the system will be a negati
94. up to discharge warm comfortable air into the room 1 When the Tindoorambient lt 75 F and the Tindoortube lt 104 F with the fan in a stopped state the indoor fan will begin to run at low speed after a 2 minute delay This will reduce cold air upon heating startup Within 2 minutes if Tindoortube gt 104 F the indoor fan will run at low speed After 1 minute of operation the fan will run at the preset fan mode Within 1 minute of low speed operation or 2 minutes of no fan operation with the Tindoortube gt 108 F the fan will run at the preset mode 2 If the Tinaoorambient gt 75 F and the Tindoortube lt 108 F the indoor fan will run at low speed for 1 minute than run at the preset mode After 1 minute of low speed operation if the and the Tindoortube gt 108 the fan will operate at its preset mode Note Ihe Tindoorambient in 1 amp 2 above refers to the unit going into the heating mode coming out of defrost Overcurrent and Speed Protection Total Current The software will monitor the compressor current draw and adjust the compressor speed in order to maintain the inverter and compressor in a safety and reliable operating range A If Itota lt 13a an increase in frequency will be allowed B If Itota gt 15a increasing the frequency is not allowed C If Itotal gt 17 the compressor will decrease its frequency D If kota gt 19a the compressor will stop and the indoor fan will stop afte
95. ure the voltage of position Land N on wiring board XT if the voltage is higher than 150VAC 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 AP1 if its normal theres malfunction for the circuit please replace the control panel AP1 Discharging after the complete unit is de energized for 20 mins check whether the thermal grease on IPM Module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly If its no use please replace control panel 1 1 Supply voltage is lower than AC175V 2 Wiring terminal is loosened or broken 3 is damaged please replace 4V 77 Fault Displays Indoor Unit Displaying Method Outdoor Unit Display LED Indicator has 3 kinds of display status Indicator Display during HM Malfunction mM and during blinking ON 0 5s and OFF blinking 0 55 and OFF 0 55 Status Malfunctions Name Running Cooling Heating D40 D41 D42 D43 LED LED LED D5 D6 D16 D30 During cooling Replace outdoor operation control panel AP1 Zero crossing compressor will malfunction stop while indoor of outdoor fan will operate unit during heating the complete unit will stop operation Limit Allloads operate Poor air return in decrease normally while indoor unit or fan frequency operation frequency spe
96. ve amount since it was removed from the tank After the proper amount of refrigerant has been weighed in close the manifold valve Close the tank valve then carefully remove the hose gt and adapter Replace the charging port back on the outdoor unit valves On new installations open all liquid and vapor service valves ZERO UNITS 901 0 sale 29 stallion Proper installation site is vital for correct and efficient operation of the unit Avoid the following sites where e Strong heat sources vapors flammable gas or volatile liquids are emitted High frequency electro magnetic waves are generated by radio equipment welders and medical equipment e The air is contaminated with industrial vapors and oils e The air contains sulfurous gas such as in hot spring zones e Poor air quality exists The air inlet and outlet should be away from any obstructions Ensure the air will easily circulate through the entire room 1 Select a site where the condensate can be easily routed or consider a condensate removal pump 2 Select a place where it is out of reach of children 3 Select a place that has adequate mounting structure strong enough to withstand the full weight and vibration of the unit 4 sure to leave enough space to allow access for routine maintenance Refer to unit installation specifications for clearances Select a place more than 3 feet away from any TV or other electrical app
97. y due to overload Decrease frequency due to overcurrent OFF B Illuminated Blink During cooling and drying operating compressor stops while indoor fan operates During heating operation the complete unit will stop operation During cooling and drying operation compressor will stop after operating for about 3 mins while indoor fan will operate During heating operation the complete unit will stop after operating for about 3 mins All loads operate normally while operating frequency for compressor is decreased All loads operate normally while operating frequency for compressor is decreased Outdoor temperature sensor hasn t been connected well or is damaged Please check it by referring to the resistance table for the temperature Sensor 1 Outdoor temperature sensor hasn t been connected well or is damaged Please check it by referring to the resistance table for temperature sensor 2 Ihe head of temperature sensor hasn t been inserted into the copper tube Refer to the malfunction analysis overload high temperature resistant he input supply voltage is too low system pressure is too high and overload 71 Fault Displays Indoor Unit Displaying Method Outdoor Unit Display LED Indicator has 3 kinds of display status Indicator Display during HM Malfunction a and during blinking ON 0 5s and OFF blinking O
98. y vary depending on models 14 RIO 12 000 btuh Outdoor Unit Other RIO models may very slightly Outdoor Sensor mounted AP1 Board on outside of coil Outdoor Fan Exhaust Temp Sensor Crankcase Heater Outdoor Tube pe Sensor Compressor Note Component locations may vary depending on models 15 Basic amp Protection Functions Basic Functions The compressor should stay off for at least 3 minutes before starting the unit The compressor circuit has 3 minute delay if the compressor is de energized during a run cycle If the compressor starts from a de energized cycle there will be no time delay compressor has a minimum runtime of 6 minutes regardless of room temperature 1 Cooling Mode Cooling Process When the indoor ambient rises 4 F above the preset temperature from a stopped state the unit will start the cooling cycle The outdoor fan and compressor will start The indoor fan will run continuously at the selected speed The outdoor unit will monitor the appropriate temperatures and pressure and adjust the compressor speed and the EEV as required If the indoor ambient is 4 F than the preset temperature the compressor will increase the frequency 4 F the compressor will begin reducing the frequency The EEV will be closed on indoor units with no cooling requirement The G10 technology will control compressor speed based on indoor load and compressor amperage When

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