Airwell /yaz218 Service Manual Download Page 3

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TABLE OF CONTENTS

SM YAZ218 1-A.2 GB

1-1

Table of Contents

INTRODUCTION ............................................................................................................................. 1-1

PRODUCT DATA SHEET............................................................................................................... 2-1

RATING CONDITIONS ................................................................................................................... 3-1

OUTLINE DIMENSIONS................................................................................................................. 4-1

PERFORMANCE DATA ................................................................................................................. 5-1

OPERATING CURVES ................................................................................................................... 6-1

ELECTRICAL DATA....................................................................................................................... 7-1

WIRING DIAGRAM ......................................................................................................................... 8-1

REFRIGERATION DIAGRAM ........................................................................................................ 9-1

10.

TUBING CONNECTIONS ............................................................................................................... 10-1

11.

CONTROL SYSTEM ....................................................................................................................... 11-1

12.

TROUBLESHOOTING.................................................................................................................... 12-1

13.

EXPLODED VIEW AND SPARE PART LIST ................................................................................ 13-1

APPENDIX A

.............................................................................................................................. 14-1

Summary of Contents for /yaz218

Page 1: ...HEAT PUMP SM YAZ218 1 A 2 GB FEBERARY 2011 Version 2 YAZ218 Indoor Units Outdoor Units AWSI PNXA009 012 N11 CK09 12 DCI SX09 12 DCI DLF09 12 DCI XLF09 12 DCI AWSI XLD009 012 N11 AWSI HAD007 009 012 N11 AWSI HFD007 009 012 N11 AWAU YAZ218 H11 ...

Page 2: ...changes in the relevant page All pages in the following list represent effected non effected pages divided by chapters Dates of issue for original and changed pages are Original 01 27 December 10 Total number of pages in this publication is 94 consisting of the following Page No Revision No Page No Revision No Page No Revision No Zero in this column indicates an original page ...

Page 3: ...1 3 RATING CONDITIONS 3 1 4 OUTLINE DIMENSIONS 4 1 5 PERFORMANCE DATA 5 1 6 OPERATING CURVES 6 1 7 ELECTRICAL DATA 7 1 8 WIRING DIAGRAM 8 1 9 REFRIGERATION DIAGRAM 9 1 10 TUBING CONNECTIONS 10 1 11 CONTROL SYSTEM 11 1 12 TROUBLESHOOTING 12 1 13 EXPLODED VIEW AND SPARE PART LIST 13 1 14 APPENDIX A 14 1 ...

Page 4: ...LEX PNX series Lego concept Products line of wall mounted floor ceiling cassette ducted with capacity models of 2 2 2 5 and 3 5 kW Networking connectivity Pre charged system Ready for Base heater connection and logic Cooling operation at outdoor temperature down to 100 C Heating operation at outdoor temperature down to 150 C HMI Display Board Human Machine Interface 3x7 segment display shows both ...

Page 5: ...le INDOOR UNITS AWSI PNXA009 N11 AWSI PNXA012 N11 CK09 DCI CK12 DCI SX09 DCI SX12 DCI DLF09 DCI DLF12 DCI XLF09 DCI AWSI XLD009 N11 XLF12 DCI AWSI XLD012 N11 AWSI HAD007 N11 AWSI HAD009 N11 AWSI HAD012 N11 AWSI HFD007 N11 AWSI HFD009 N11 AWSI HFD012 N11 ...

Page 6: ...INTRODUCTION SM YAZ218 1 A 2 GB 1 3 1 6 Indoor Unit combinations YAZ218 Unit A Unit B Code Sum 22 22 2 22 25 2 22 35 2 5 25 25 2 25 35 2 5 35 35 3 Nominal Indoor Units Combination ...

Page 7: ...39 Package dimensions WxDxH mm 945x655x395 Packaged weight kg 42 Units per pallet Units 9 Stacking height units 3 levels Refrigerant type R410A Standard charge kg 7 5m 1 40 OUTDOOR Additional charge No Need Liquid line In mm 1 4 6 35 Suction line In mm 3 8 9 53 Max tubing length for single IOD to ODU m Max 25m Height difference between indoor units m Max 5m Height difference between indoor outdoor...

Page 8: ... 11 5 Package dimensions WxHxD mm 870x356x282 Packaged weight kg 14 Units per pallet units 28 INDOOR Stacking height units 7 levels 2 2 2 AWSI PNXA012 N11 Model Indoor Unit AWSI PNXA012 N11 Installation Method of Pipe Flared Power supply V Ph Hz 220 230V 1 Ph 50 Hz Fan type quantity Crossflow x 1 Fan speeds H M L RPM 1100 950 800 Air flow 1 H M L m3 hr 550 450 350 External static pressure Min Pa 0...

Page 9: ...7 700X700X103 800X800X103 Packaged weight kg 16 2 3 4 4 2 Units per pallet units 12 INDOOR Stacking height units 6 levels 2 2 4 CK12 DCI Model Indoor Unit CK12 DCI Installation Method of Pipe Flared Power supply V Ph Hz 220 230V 1 Ph 50 Hz Fan type quantity Centrifugal x 1 Fan speeds H M L RPM 600 520 450 650 550 450 Air flow 1 H M L m3 hr 470 390 320 510 420 320 External static pressure Min Pa 0 ...

Page 10: ...WxHxD mm 920x726x273 Package weight kg 25 Units per pallet units 14units per pallet INDOOR Units stacking units 7 levels 2 2 6 SX12 DCI Model Indoor Unit SX12 DCI Installation Method of Pipe Flared Power supply V Ph Hz 220 240 1 50 Fan type quantity Centifugal x 2 Fan speeds H M L RPM 830 760 500 Air flow 1 H M L m3 hr 450 400 300 External static pressure Min Pa 0 Sound power level 2 H M L dB A 56...

Page 11: ... WxHxD mm 885x695x226 Package weight kg 23 Units per pallet units 14units per pallet INDOOR Units stacking units 7 levels 2 2 8 DLF12 DCI Model Indoor Unit DLF12 DCI Installation Method of Pipe DUCTED Power supply V Ph Hz 220 240 1 50 Fan type quantity Centifugal x 2 Fan speeds H M L RPM 980 860 730 Air flow 1 H M L m3 hr 650 580 490 External static pressure Min Max Pa 0 30 Sound power level 2 H M...

Page 12: ...age dimensions WxHxD mm 700x700x255 Packaged weight kg 15 5 Units per pallet units 16 INDOOR Stacking height units 8levels 2 2 10 XLF12 DCI Model Indoor Unit XLF12 DCI XLD012 N11 Installation Method of Pipe Flared Power supply V Ph Hz 220 240 1 50 Fan type quantity Helicoid x 1 Fan speeds H M L RPM 540 510 450 Air flow 1 H M L m3 hr 400 370 310 External static pressure Min Pa 0 Sound power level 2...

Page 13: ...ackage dimensions WxHxD mm 740x310x248 Packaged weight kg 10 Units per pallet units 32 INDOOR Stacking height units 8 2 2 12 AWSI HAD009 N11 Model Indoor Unit AWSI HAD009 N11 Installation Method of Pipe Flared Power supply V Ph Hz 220 240 1 50 Fan type quantity Crossflow x 1 Fan speeds H M L RPM 1150 1000 800 Air flow 1 H M L m3 hr 420 350 270 External static pressure Min Pa 0 Sound power level 2 ...

Page 14: ...nsions WxHxD mm 900x310x248 Packaged weight kg 11 Units per pallet units 32 INDOOR Stacking height units 8 2 2 14 AWSI HFD007 N11 Model Indoor Unit AWSI HFD007 N11 Installation Method of Pipe Flared Power supply V Ph Hz 220 240 1 50 Fan type quantity Crossflow x 1 Fan speeds H M L RPM 1100 950 800 Air flow 1 H M L m3 hr 350 300 250 External static pressure Min Pa 0 Sound power level 2 H M L dB A 4...

Page 15: ...xD mm 740x320x265 Packaged weight kg 10 Units per pallet units 36 units per pallet INDOOR Stacking height units 9 levels 2 2 16 AWSI HFD012 N11 Model Indoor Unit AWSI HFD012 N11 Installation Method of Pipe Flared Power supply V Ph Hz 220 240 1 50 Fan type quantity Crossflow x 1 Fan speeds H M L RPM 1200 1000 850 Air flow 1 H M L m3 hr 550 450 350 External static pressure Min Pa 0 Sound power level...

Page 16: ... Cooling Indoor 27o C DB 19o C WB Outdoor 35 o C DB Heating Indoor 20o C DB Outdoor 7o C DB 6o C WB 3 1 Operating Limits Indoor Outdoor Upper limit 32o C DB 23o C WB 46o C DB Cooling Lower limit 21o C DB 15o C WB 10o C DB Upper limit 27o C DB 24o C DB 18o C WB Heating Lower limit 10o C DB 15o C DB 16o C WB 1PH 198 264 VAC Voltage 3PH N A ...

Page 17: ...OUTLINE DIMENSIONS SM YAZ218 1 A 2 GB 4 1 4 OUTLINE DIMENSIONS 4 1 Indoor Unit PNXA009 012 ...

Page 18: ...OUTLINE DIMENSIONS SM YAZ218 1 A 2 GB 4 2 4 2 Indoor Unit CK09 12 DCI Unit Model Main unit A Insulation B Front Step C Front width D Front height E Effective Height H 25 35 219 2 9 625 725 40 230 ...

Page 19: ...OUTLINE DIMENSION SM YAZ218 1 A 2 GB 4 3 4 3 Indoor Unit SX09 12 DCI 4 4 Indoor Unit XLF09 12 DCI ...

Page 20: ...OUTLINE DIMENSIONS SM YAZ218 1 A 2 GB 4 4 4 5 Indoor Unit DLF09 12 DCI ...

Page 21: ...OUTLINE DIMENSION SM YAZ218 1 A 2 GB 4 5 4 6 OUTDOOR UNIT YAZ218 出气口进气口 ...

Page 22: ...50 2100 3 40 A 9 12 2140 2860 5000 1800 6300 1470 550 2130 3 40 A 12 12 2500 2500 5000 1800 6400 1470 550 2130 3 40 A Nominal Indoor Units Combination 5 1 2 Heating Capacity Power Consumption W Operating indoor model A B Nom Min Max Nom Min Max COP Nominal Energy Efficiency Class 7 2600 2600 1000 3000 720 375 800 3 61 A 9 3000 3000 1000 4000 830 375 1500 3 61 A 12 4000 4000 1000 4500 1100 375 1700...

Page 23: ...1 17 SC 0 98 1 00 1 03 1 05 1 07 30 PI 0 88 0 89 0 91 0 92 0 94 TC 0 87 0 94 1 00 1 06 1 13 SC 0 96 0 98 1 00 1 02 1 04 35 PI 0 97 0 99 1 00 1 02 1 03 TC 0 83 0 89 0 95 1 02 1 08 SC 0 93 0 95 0 97 1 00 1 02 40 PI 1 06 1 08 1 09 1 11 1 12 TC 0 77 0 83 0 90 0 96 1 02 SC 0 90 0 92 0 94 0 96 0 99 46 PI 1 17 1 19 1 20 1 22 1 23 LEGEND TC Total Cooling Capacity SC Sensible Capacity PI Power Input WB Wet...

Page 24: ...1 2 PI 0 86 0 92 0 98 TC 0 81 0 76 0 72 2 1 PI 0 89 0 95 1 01 TC 1 04 1 00 0 96 7 6 PI 0 94 1 00 1 06 TC 1 10 1 06 1 01 10 9 PI 1 00 1 06 1 12 TC 1 16 1 12 1 07 15 12 PI 1 05 1 11 1 17 15 24 TC 85 105 of nominal Protection Range PI 80 120 of nominal LEGEND TC Total Cooling Capacity SC Sensible Capacity PI Power Input WB Wet Bulb Temperature o C DB Dry Bulb Temperature o C ID Indoor OD Outdoor 5 2 ...

Page 25: ...1 17 SC 0 98 1 00 1 03 1 05 1 07 30 PI 0 88 0 89 0 91 0 92 0 94 TC 0 87 0 94 1 00 1 06 1 13 SC 0 96 0 98 1 00 1 02 1 04 35 PI 0 97 0 99 1 00 1 02 1 03 TC 0 83 0 89 0 95 1 02 1 08 SC 0 93 0 95 0 97 1 00 1 02 40 PI 1 06 1 08 1 09 1 11 1 12 TC 0 77 0 83 0 90 0 96 1 02 SC 0 90 0 92 0 94 0 96 0 99 46 PI 1 17 1 19 1 20 1 22 1 23 LEGEND TC Total Cooling Capacity SC Sensible Capacity PI Power Input WB Wet...

Page 26: ...1 2 PI 0 86 0 92 0 98 TC 0 81 0 76 0 72 2 1 PI 0 89 0 95 1 01 TC 1 04 1 00 0 96 7 6 PI 0 94 1 00 1 06 TC 1 10 1 06 1 01 10 9 PI 1 00 1 06 1 12 TC 1 16 1 12 1 07 15 12 PI 1 05 1 11 1 17 15 24 TC 85 105 of nominal Protection Range PI 80 120 of nominal LEGEND TC Total Cooling Capacity SC Sensible Capacity PI Power Input WB Wet Bulb Temperature o C DB Dry Bulb Temperature o C ID Indoor OD Outdoor 5 3 ...

Page 27: ...1 17 SC 0 98 1 00 1 03 1 05 1 07 30 PI 0 88 0 89 0 91 0 92 0 94 TC 0 87 0 94 1 00 1 06 1 13 SC 0 96 0 98 1 00 1 02 1 04 35 PI 0 97 0 99 1 00 1 02 1 03 TC 0 83 0 89 0 95 1 02 1 08 SC 0 93 0 95 0 97 1 00 1 02 40 PI 1 06 1 08 1 09 1 11 1 12 TC 0 77 0 83 0 90 0 96 1 02 SC 0 90 0 92 0 94 0 96 0 99 46 PI 1 17 1 19 1 20 1 22 1 23 LEGEND TC Total Cooling Capacity SC Sensible Capacity PI Power Input WB Wet...

Page 28: ...1 2 PI 0 86 0 92 0 98 TC 0 81 0 76 0 72 2 1 PI 0 89 0 95 1 01 TC 1 04 1 00 0 96 7 6 PI 0 94 1 00 1 06 TC 1 10 1 06 1 01 10 9 PI 1 00 1 06 1 12 TC 1 16 1 12 1 07 15 12 PI 1 05 1 11 1 17 15 24 TC 85 105 of nominal Protection Range PI 80 120 of nominal LEGEND TC Total Cooling Capacity SC Sensible Capacity PI Power Input WB Wet Bulb Temperature o C DB Dry Bulb Temperature o C ID Indoor OD Outdoor 5 4 ...

Page 29: ...1 17 SC 0 98 1 00 1 03 1 05 1 07 30 PI 0 88 0 89 0 91 0 92 0 94 TC 0 87 0 94 1 00 1 06 1 13 SC 0 96 0 98 1 00 1 02 1 04 35 PI 0 97 0 99 1 00 1 02 1 03 TC 0 83 0 89 0 95 1 02 1 08 SC 0 93 0 95 0 97 1 00 1 02 40 PI 1 06 1 08 1 09 1 11 1 12 TC 0 77 0 83 0 90 0 96 1 02 SC 0 90 0 92 0 94 0 96 0 99 46 PI 1 17 1 19 1 20 1 22 1 23 LEGEND TC Total Cooling Capacity SC Sensible Capacity PI Power Input WB Wet...

Page 30: ...1 2 PI 0 86 0 92 0 98 TC 0 81 0 76 0 72 2 1 PI 0 89 0 95 1 01 TC 1 04 1 00 0 96 7 6 PI 0 94 1 00 1 06 TC 1 10 1 06 1 01 10 9 PI 1 00 1 06 1 12 TC 1 16 1 12 1 07 15 12 PI 1 05 1 11 1 17 15 24 TC 85 105 of nominal Protection Range PI 80 120 of nominal LEGEND TC Total Cooling Capacity SC Sensible Capacity PI Power Input WB Wet Bulb Temperature o C DB Dry Bulb Temperature o C ID Indoor OD Outdoor 5 5 ...

Page 31: ... 5 6 1 Cooling Tubing Length Capacity Ratio Cooling 1 Unit 0 76 0 81 0 86 0 91 0 96 1 01 1 06 0 5 10 15 20 25 30 Tubing Length m Capacity Ratio 5 6 2 Heating Tubing Length Capacity Ratio Heating 1 Unit 0 76 0 81 0 86 0 91 0 96 1 01 1 06 0 5 10 15 20 25 30 Tubing Length m Capacity Ratio ...

Page 32: ...OPERATING CURVES SM YAZ218 1 A 2 GB 6 1 6 OPERATING CURVES 6 1 Model YAZ218 DCI 6 1 1 Cooling Technician Mode ...

Page 33: ...OPERATING CURVES 6 2 SM YAZ218 1 A 2 GB 6 1 2 Heating Technician Mode ...

Page 34: ...OPERATING CURVES SM YAZ218 1 A 2 GB 6 3 6 1 3 Tubing Length correction Factor ...

Page 35: ...reaker 20A Power supply wiring no x cross section 3 X 2 0 mm2 Interconnecting cable no x cross section 4 X 1 5 mm2 For each IDU Note Inrush current is the current when power is up charging the DC capacitors at outdoor unit controller Starting current is the current when starting the compressor NOTE Power wiring cord should comply with local lows and electrical regulations requirements ...

Page 36: ... N P201 ODU IDU A IDU B DMSMP CN401 WHITE RX TX GND 5V 12V CN402 RED P804 P109 P108 P502 P105 C For single P103 FERRITE 1 2 3 4 CN801 ON DIP TO DMSMP 1 2 3 4 2 1 3 P101 P107 L N P601 P602 P102 FUSE M2L BROWN BLUE YELLOW OUTDOOR CONTROLLER BLACK P501 W BROWN V RED P503 U 1 2 HST RED WHITE BLUE BLUE FERRITE BLACK P201 P202 2 2 1 1 P104 GRN CAP BH YEL P106 P801 P802 P803 2 1 3 6 5 4 P805 3 1 2 1 2 4 ...

Page 37: ...REFRIGERATION DIAGRAM SM YAZ218 1 A 2 GB 9 1 9 REFRIGERATION DIAGRAM 9 1 YAZ218 Cooling Mode ...

Page 38: ...REFRIGERATION DIAGRAM 9 2 SM YAZ218 1 A 2 GB 9 2 YAZ218 Heating Mode ...

Page 39: ...TUBING CONNECTIONS SM YAZ218 1 A 2 GB 10 1 10 TUBING CONNECTIONS ...

Page 40: ...re sensor Hz Hertz 1 sec electrical frequency ICT Indoor Coil Temperature RT2 sensor IDU Indoor Unit MCU Micro Controller Unit OAT Outdoor Air Temperature sensor OCT ODU Coil Temperature sensor OMT Outdoor middle coil temperature ODU Outdoor Unit OFAN Outdoor Fan PFC Power Factor Corrector RAC Residential A C RC Reverse Cycle Heat Pump RGT Return Gas Temperature sensor RLT Return Liquid Temperatur...

Page 41: ...erature OCT Outdoor Coil heat exchanger Temperature HST Heat Sink Temperature RGT1 4 Indoor Unit 1 4 Returned Gas Temperatures RLT 1 4 Indoor Unit 1 4 Returned Liquid Temperatures 11 2 7 Base Heater Heating element designed to melt any ice that is accumulated on the outdoor unit base during low heating operation 11 3 General Operating Rules 11 3 1 Initialization Initialization process is the first...

Page 42: ...es according to the following table Capacity group Capacity Code 0 1 1 1 5 2 1 7 3 2 4 3 For Model Q YBD018 YAZ218 Total Detected IDU Code Sum of IDU code Detected IDU units Minimum Allowed Maximum Allowed 2 2 3 Whenever the sum of the IDU code is outside the range the unit will be forced to Idle Mode and report Mismatch between IDU and ODU models If the unit is forced to Idle Mode then it will ke...

Page 43: ...18 YAZ218 Com Channel 4 No No No No No Notes 1 The outdoor will keep establishing normal communication with the indoor or DMSMP 2 The outdoor will show diagnostics normally 3 The SB LED will keep ON as long as the power is on 4 Once the unit is forced to Idle due to either of the above it will keep checking the above items until the system is recovered 11 3 2 Communication with Indoor Units 11 3 2...

Page 44: ... C Temp 125 o C OMT Temp 35 o C Temp 75 o C ICT Temp 30 o C Temp 75 o C RGT Temp 30 o C Temp 126 o C RLT Temp 30 o C Temp 126 o C 11 3 3 2 System responses for different thermistor failure Thermistor Default value System Reaction OCT 43 C OAT 6 C CTT 43 C Compressor is stopped OMT 43 C Compressor is stopped in cooling mode HST 43 C Compressor is stopped RGT 43 C RLT 43 C ICT 43 C 11 3 4 Flash Memo...

Page 45: ...n user setting unit will operate fan in selected speed In Auto Fan user setting fan speed will be adjusted automatically according to the calculated NLOAD 11 4 3 Heat Mode NLOAD is calculated according to the difference between actual room temperature and user set point temperature by PI control In high medium low indoor fan user setting unit will operate fan in selected speed In Auto Fan user set...

Page 46: ...d MaxNLOADIF1C Hz When the room temperature is lower than the set point compressor will be switched OFF and indoor fan will cycle 3 minutes OFF 1 minute ON 11 4 6 Indoor Units Operation when Indoor Unit Mode is Different than Outdoor Unit Mode Open louvers according to user selection Indoor fan is forced to OFF 11 4 7 Indoor Unit Dry Contact Indoor unit Dry contact has two alternative functions th...

Page 47: ...ing Model STANDBY INDICATOR Lights up when the Air Conditioner is connected to power and is ready for operation OPERATE INDICATOR 1 Lights up during operation 2 Blinks for 300 msec to announce that a R C infrared signal has been received and stored 3 Blinks continuously during protections according to the relevant spec section TIMER INDICATOR Lights up during Timer and Sleep operation FILTER INDIC...

Page 48: ...ected in this order SB Cool Mode Heat Mode SB In long pressing system enters diagnostic mode POWER BUTTON Toggle the unit between OPER STBY modes RESET FILTER BUTTON For short pressing When Filter LED is on turn off the FILTER INDICATOR after a clean filter has been reinstalled When Filter LED is off enable disable the buzzer announcer if selected In long pressing system enters set up mode if in S...

Page 49: ...ed according to that unit request unless the unit is at STBY mode In case priority unit is SB the mode will be set acceding to first request priority 11 5 1 3 Forced operation mode If forced mode is enabled than the ODU mode will be forced according to the Forced mode input Open Æ COOL Short Æ HEAT The ODU will go to SB if all the IDU are at SB or at different modes 11 5 1 4 SB Input The ODU will ...

Page 50: ...ction NLOAD limits as a function of indoor fan speed Indoor Fan Speed Maximum NLOAD Cooling Maximum NLOAD Heating Low Max NLOADIF1C 127 Medium Max NLOADIF2C 127 High Max NLOADIF3C 127 Turbo Max NLOADIF4C 127 Auto Max NLOADIF5C 127 NLOAD limits as a function of power shedding Mode Power Shedding OFF Power Shedding ON Cool No limit Nominal Cooling Heat No limit Nominal Heating 11 5 2 4 Outdoor Unit ...

Page 51: ... EEV can move no more than 20 steps at a time When required the EEV s move one by one in sequence until the target position is achieved for every EEV The following diagram presents the EEV steps until the target position is set EEV1 EEV2 EEV3 EEV4 EEV1 EEV3 EEV4 EEV3 EEV4 EEV3 EEV3 EEV2 set EEV1 set EEV4 set EEV3 set 11 5 3 3 EEV homing When compressor stops or unit is power on the following is pe...

Page 52: ... 4 1 Behavior when there is a failure in OFAN Whenever OFAN fault occurs the compressor will be stopped immediately 11 5 4 2 Protection Behavior In cool mode the OFAN will operate according to CTT or HST protection level Protection level Action SR D1 or D2 OFAN will go to the Max speed Stop Compressor Continue to operate for maximum 3 minutes at 500 rpm or until normal level is achieved 11 5 4 3 O...

Page 53: ...t protection status among the all indoor units 11 5 9 IDU Protections 11 5 9 1 Indoor Coil Defrost Protection ICT Trend ICT Fast Increasing Increasing No change Decreasing Fast Decreasing ICT 2 SC SC SC SC SC 2 ICT 0 D1 D1 D2 D2 D2 0 ICT 2 SR SR D1 D2 D2 2 ICT 4 SR SR SR D1 D2 4 ICT 6 Norm Norm SR SR D1 6 ICT 8 Norm Norm Norm SR SR 8 ICT Normal 11 5 9 2 Indoor Coil over Heating Protection ICT Tren...

Page 54: ...l protection level is defined by the higher level of protection received 11 5 11 Deicing 11 5 11 1 Deicing Starting Conditions Deicing operation will start when either one of the following conditions exist Case 1 OCT OAT DST AND TLD DI Case 2 OCT OAT 12 AND TLD 30 minutes Case 3 OCT is Invalid AND TLD DI Case 4 Unit is just switched to STBY AND OCT OAT DST Case 5 NLOAD 0 AND OCT OAT DST Case 6 OAT...

Page 55: ...F Any T1 T2 T3 T3 T1 OCT 0 Threshold T1 T2 36 seconds T3 6 seconds 11 5 11 3 Condensate Water over Flow Protection Each of the pins P1 P2 P3 can have two options 1 When it is shorted with P4 0 When it is not shorted to P4 11 5 11 4 3 Levels Logic used in floor ceiling models P2 P3 Level 0 0 L0 1 0 L1 1 1 L2 3 0 1 L4 ...

Page 56: ...AL ON Pump OFF 11 5 11 5 1 Level Logic used in all models except for floor ceiling models P2 P3 Level Don t care 1 Normal Don t care 0 Overflow ANY 0 ON NLOAD PUMP OFF ON OPER LED OFF Overflow Water Level Normal BLINK NLOAD is forced to 0 8 min 8 min Overflow when unit is ON Overflow when unit is OFF 8 min ...

Page 57: ...nected properly to the right EEV channels 4 No mix between the indoor unit s tubes each indoor unit must have its own tubes connected properly to the outdoor unit If the rules above are not respected the test results will make no sense 11 6 4 Installation test menu Installation Test it Number of IDUs nID 1 2 3 4 Begin test bgn Test Result pf NUL PAS FAL OAT IDU FLT Matrix Table Test Result tbl Pro...

Page 58: ...pressing Esc for 5 seconds When exiting the test the system will still keep the latest result from the previous test 11 6 6 Faults during the test Upon the following the system will terminate installation test Fault display Reasons OAT blink Outdoor ambient temperature is too clod cannot run installation test IDU blink The selected number of the installed indoor units by the technician does not ma...

Page 59: ...CB CC CD x Wire name Marked by technician 1 2 3 4 For non connected indoor units there is no need for label The result is presented in the following way Present for 2 sec Present for 2 Sec Interpretation x Cz x is the wire name 1 2 3 4 z is the communication channel A b c d x Cz is move wire x to communication channel Cz Ey W y is the EEV channel name A b c d w can be 1 c is closed 2 o is open 3 o...

Page 60: ...echnician Interpretation 1 Cd Move wire 1 to communication channel Cd 2 Cc Move wire 2 to communication channel Cc 3 C_ Do not know where to put wire 3 4 C_ Do not know where to put wire 4 EA o EEV of channel A is always open Eb o EEV of channel B is always open 7 8 HMI Display Technician Interpretation 1 CA Keep wire 1 in communication channel CA 2 Cb Keep wire 2 in communication channel Cb 3 Cd ...

Page 61: ... keep 2 sec Repeat r3 keep 2 sec Æ X3Y3Z3 keep 2 sec Æ W3 keep 2 sec 4 x 4 Repeat r4 keep 2 sec Æ X4Y4Z4 keep 2 sec Æ W4 keep 2 sec Note Scrolling between r1 r2 r3 and r4 is done through the Up and Down buttons Definitions Term Definition F Clogged EEV EEV Coil problem EEV driver problem Clogged indoor unit or part of it Problem in ICT sensor Extremely high load at the indoor side T Valve always o...

Page 62: ...ill be ignored o Protections will be operative for stop compressor not to be implemented in the current version o The compressor and the outdoor fan will be working in target preset values according to the following table Technician Test Compressor Speed Unit Cool Heat OFAN speed YAZ218 66 88 900rpm 11 7 3 Exiting technician mode Technician mode will be exited either when o Escaping by the HMI exi...

Page 63: ... Point Selection command Go down one level in the menu or select an option Select button FAN mode Escaping command Go up one level in the menu Escape button Oper STBY RC8 sketch FAN SPT SPT Oper LCD Button Box Note the buttons above are selected according to RC8 design refer to RC8 specifications for the technician convenient use 11 8 2 Keys functionality o Scrolling will be done whenever the butt...

Page 64: ...nit A a Indoor Unit A axx Indoor Unit B b Indoor Unit B bxx Indoor Unit C c Indoor Unit C cxx Indoor Unit D d Indoor Unit D dxx Set Up Stp First IDU Wins idu IDU A is master a p IDU B is master b p IDU C is master c p IDU D is master d p Forced mode input Frc Status Stt IDU IDU ODU ODU Timer Tr Notes 1 The default presentation will be alternating repeatedly among the following for single and multi...

Page 65: ...s out of any press 5 Technician Test mode once is selected is exited after 60 minutes from entry 6 All the menus except Status and its sub menu Technician Test once selected are automatically exited to the main menu after 10 continuous minute out of any press 7 When Technician test cool or heat menus are selected operative it will be blinking constantly until this menu is escaped 8 When the instal...

Page 66: ...NLOAD 3 C NLOAD 4 D Capacity Code CAP Capacity Code 1 A Capacity Code 2 B Capacity Code 3 C Capacity Code 4 D Family Fa Family 1 A Family 2 B Family 3 C Family 4 D Model dl Model 1 A Model 2 B Model 3 C Model 4 D ODU ODU Detected IDUs nID Operation Mode Opr OFAN OFN RV HP Compressor Speed SPD CTT CTT OMT OT OCT OCT OAT OAT HST HST RGT1 RGA RGT2 RGB RGT3 RGC RGT4 RGD RLT1 RLA RLT2 RLB RLT3 RLC RLT4...

Page 67: ... hour s units o The modes Cool Heat Dry Fan Auto will be presented CL Ht dr FAn AUt o The current is the AC current of the unit o The models A b C and d will be presented A b c and d respectively 11 9 Jumper settings Compressor Type ODU4 ODU3 ODU2 ODU1 ODU0 ODU Model Single Split Multi Split ON OFF OFF OFF OFF P Sanyo Mitsubishi ON OFF OFF OFF ON Q Panasonic Panasonic ON OFF OFF ON OFF R ON OFF OF...

Page 68: ...WR 1 2 1 Hz Sec NA 22 StopRise 0 1 6 Hz Sec NA 23 DImin 30 minute 24 DImax 120 Minute 25 TimeD 1 Minute 26 DTmin 2 Minute 27 DIT 10 Minute 28 CTMRUP 10 Minute 29 DIF 30 Minute 30 TCT 240 Second 31 CompBalanceTimeA 5 minute 32 IDUChngBalanceTime 2 minute 33 CompBalanceTimeIA 10 minute 34 DEICT1 60 second Name Default Value Units 35 DEICT2 36 second 36 DEICT3 6 second 37 DSTF 12 38 OMTOH0 50 39 OMTO...

Page 69: ...e 120 Step 55 InvAccel 3 NA 56 InvDecel 1 NA Name Q YAZ218 Unit 57 OCTExitDeicer 12 C 58 MaxDeicerTime 15 Minute 62 EEVDecierOpenSingle 200 Step 63 EEVDecierOpenMulti 200 Step 59 DeicerCoef 0 8 NA 60 EEV_Active_H_Isotherm 6 C 61 EEV_Active_H_SC 10 C 62 EEV_Active_H_SC_Crct 1 C 63 EnableExceedCond 1 64 OVRPWR0 2350 Watt 65 OVRPWR1 2500 Watt 66 OVRPWR2 2650 Watt 67 OVRPWR3 2800 Watt 68 MinSumCapCode...

Page 70: ...a _M1_C 3 067 NA 124 EEV_OL_Delta _M1_C 132 NA 125 EEV_OL_Alpha_M2_C 5 246 NA 126 EEV_OL_Beta_M2_C 0 312 NA 127 EEV_OL_ Gamma _M2_C 1 796 NA 128 EEV_OL_Delta_M2_C 93 NA 129 EEV_OL_Alpha_M3_C NA NA 130 EEV_OL_Beta_M3_C NA NA Name Q YAZ218 Unit 131 EEV_OL_ Gamma _M3_C NA NA 132 EEV_OL_Delta _M3_C NA NA 133 EEV_OL_Alpha_M4_C NA NA 134 EEV_OL_Beta_M4_C NA NA 135 EEV_OL_ Gamma _M4_C NA NA 136 EEV_OL_De...

Page 71: ...d ICT to enable Turbo fan speed 40 Parameters for IDU defrost protection ICTDef1 ICT to go back to normal 8 ICTDef2 ICT to stop rise when ICT decrease 6 ICTDef3 ICT to stop rise when ICT is stable 4 ICTDef4 ICT to Hz Down when ICT decrease 2 ICTDef5 ICT to Hz Down when ICT is stable 0 ICTDef6 ICT to stop compressor 2 Parameters for indoor coil over heating protection ICTOH1 ICT to go back to norma...

Page 72: ...oblem with display PCB Replace display PCB If still not OK replace controller Unit in heat mode and coil is still not warm Change to cool mode Outdoor unit is in opposite mode Change operation mode 4 Indoor fan does not start louvers are opened and Green LED is ON Problem with controller or capacitor Change to high speed and Check power supply to motor is higher than 130VAC for triack controlled m...

Page 73: ...r heat instead of cool Electronics or RV problem Check RV 12 4 4 16 All components are operating properly but no cooling or no heating Refrigerant leak Check refrigeration system 12 2 17 Compressor motor is generating noise and no suction occurs Phase order to compressor is wrong Check compressor phase order 18 Freezing of outdoor unit in heat mode and outdoor unit base is blocked with ice Connect...

Page 74: ...cted Yes 0 0 1 0 0 5 OMT is shorted disconnected Yes 0 0 1 0 1 6 RGT is shorted disconnected Yes 0 0 1 1 0 7 RLT is shorted disconnected Yes 0 0 1 1 1 8 Reserved No 0 1 0 0 0 9 Reserved No 0 1 0 0 1 10 Reserved No 0 1 0 1 0 11 Compressor IPM Fault IPM Driver Pin Compressor Current Sensor Fault Yes 0 1 0 1 1 12 Bad EEPROM No 0 1 1 0 0 13 DC under voltage Yes 0 1 1 0 1 14 DC over voltage Yes 0 1 1 1...

Page 75: ... compressor is below operable value Check AC input line voltage RMS value it should read above 198VAC If voltage is above 198VAC and DC under voltage error is continuous display replace controller 14 DC over voltage The capacitor bank DC voltage supply for the compressor is too high value Check AC input line voltage RMS value it should read below 264VAC If voltage is below 264VAC and DC over volta...

Page 76: ...g multimeter Resistance value should be below 1 OHM If multimeter display high resistance replace DC FAN motor Return controller if error is persistent 26 Compressor Lock No correct drive current can be detected from the compressor Check compressor cable or compressor wire assembly Make sure the phase sequence of U V W is correctly plug into the compressor 27 Bad Communication Lost of communicatio...

Page 77: ...U1 ODU RO TO Master Slave Slave Slave Channel LED Ri has communication The relevant LEDi will be ON Ri has no communication The relevant LEDi will be Off LED on DMSMP Damage ODU IDU 1 2 3 4 O How to check To ODU No Com All no com Off Off Off Off Off Voltage To ODU no change Ro DMSMP No Com All no com Off Off Off Off Off Voltage To ODU changes Voltage Ro DMSMP no change To DMSMP No com All ok On On...

Page 78: ... Led will blink during the same 5 seconds according to the following table No Fault Name 5 4 3 2 1 1 RT 1 is disconnected 2 RT 1 is shorted 3 RT 2 is disconnected 1 1 4 RT 2 is shorted 1 Reserved 1 1 7 Communication mismatch 1 1 1 8 No Communication 1 9 No Encoder 1 1 10 Reserved 0 1 0 1 0 11 Outdoor Unit Fault 0 1 0 1 1 Reserved 17 Defrost protection 1 1 18 Deicing Protection 1 1 19 Outdoor Unit ...

Page 79: ... If Mains voltage is out of this range abnormal operation of the system is expected If in range check the Power Circuit Breaker and look for broken or loosed cable lugs or wiring mistake s 12 4 2 Checking Main fuse Check 20A fuse on the Filter Board If burnt check the compressor fan or any other peripheral that can cause a short In case of a problematic peripheral replace it In case no problematic...

Page 80: ...netic interference EMC problems 12 4 8 1 EMC troubles to the A C unit Locations most susceptible to noise 1 Locations near broadcast stations where there are strong electromagnetic waves 2 Locations near amateur radio short wave stations 3 Locations near electronic sewing machines and arc welding machines Trouble Either of the following trouble may occur 1 The unit may stop suddenly during operati...

Page 81: ...roller Therefore charging voltage 380VDC remains after power down Discharging takes about one minute after turned off Touching the Outdoor unit controller before discharging may cause an electrical shock When open the Outdoor unit controller cover don t touch the soldering pin by hand or by any conductive material Advise Open the Outdoor unit controller cover only after one minute from power off M...

Page 82: ...EXPLODED VIEW AND SPARE PART LIST SM YAZ218 1 A 2 GB 13 1 13 EXPLODED VIEW AND SPARE PART LIST 13 1 Multi YAZ218 Exploded View ...

Page 83: ...400200 CTT Compressor Top Temperature Sensor 10K Resin capsulation 1 23 467400082 Return Gas Temperature Sensor RGT φ6 DCI YAZ218 1 24 467400083 Return Liquid Temperature Sensor RLT φ6 DCI YAZ218 1 25 4516540 ground wire UL1015 12AWG 2 26 455015206 ground wire UL1015 16AWG 680mm 1 27 455014409 Connect Wire UL1015 14AWG 1 28 4510677 Nut With Flange M8 D 24 GB6187 86 3 29 467300232R Communication Bo...

Page 84: ...EXPLODED VIEW AND SPARE PART LIST SM YAZ218 1 A 2 GB 14 1 14 APPENDIX A INSTALLATION AND OPERATION MANUAL ...

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Airwell /yaz218, Service Manual

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