Daikin RZQ100B7W1B User Manual Download

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Service Manual

ESIE05-03

RZQ71~125B8V3B
RZQ100~140B7W1B

Sky-Air Inverter R-410A B series

ESIE05-03.book Page 1 Wednesday, April 6, 2005 4:09 PM

Summary of Contents for RZQ100B7W1B

Page 1: ...Service Manual ESIE05 03 RZQ71 125B8V3B RZQ100 140B7W1B Sky Air Inverter R 410A B series...

Page 2: ......

Page 3: ...ZQ71 140 Installation and Service Space 1 8 2 Specifications 2 1 What Is in This Chapter 1 11 2 2 RZQ71 100 and 125 single phase 1 12 2 3 RZQ100 125 and 140 three phase 1 16 3 Functional Diagrams 3 1...

Page 4: ...5 Wiring Diagrams 5 1 What Is in This Chapter 1 41 5 2 RZQ71B8V3B 1 42 5 3 RZQ100 125B8V3B 1 44 5 4 RZQ100 140B7W1B 1 46 6 PCB Layout 6 1 What Is in This Chapter 1 49 6 2 RZQ71B8V3B 1 50 6 3 RZQ100 1...

Page 5: ...ation 2 17 1 13 Pump Down Operation 2 18 1 14 Defrost Operation 2 19 1 15 Freeze Prevention Function 2 22 1 16 PMV Control 2 23 1 17 Preheating Operation Control 2 24 1 18 Crankcase Heater Control 2 2...

Page 6: ...1 9 Troubleshooting by Remote Controller Display LED Display 3 35 1 10 Overview of the Outdoor Safety Devices 3 38 1 11 Overview of the Indoor Safety Devices 3 39 2 Error Codes Indoor Units 2 1 What...

Page 7: ...and Inverter PCB LC 3 86 3 19 Open Phase or Power Supply Voltage Imbalance P1 3 88 3 20 Malfunction of Radiator Fin Temperature Thermistor P4 3 90 3 21 Failure of Capacity Setting PJ 3 91 3 22 Gas Sho...

Page 8: ...4 Overview of the Field Settings on the Indoor Units 4 13 2 5 Overview of the Factory Settings on the Indoor Units 4 14 2 6 MAIN SUB Setting when Using Two Remote Controllers 4 15 2 7 Setting the Cent...

Page 9: ...ESIE05 03 Table of Contents vii 3 4 5 1 Part 5 Disassembly and Maintenance 1 Disassembly and Maintenance Outdoor Units 1 1 What Is in This Chapter 5 3 1 2 RZQ71 140B 5 4...

Page 10: ...ESIE05 03 viii Table of Contents 3 1 4 5...

Page 11: ...e parts This service manual consists of an introduction five parts and an index Introduction overview The introduction contains the following topics Note This Service Manual is about Outdoor Models on...

Page 12: ...7V1B FBQ35B7V1 FBQ50B7V1 FBQ60B7V1 FBQ71B7V3B FBQ100B7V3B FBQ125B7V3B RZQ71B8V3B 2 P P 2 2 P RZQ100B8V3B 3 2 P P 3 2 3 2 P RZQ125B8V3B 4 3 2 P P 4 3 2 4 3 2 P RZQ100B7W1B 3 2 P P 3 2 3 2 P RZQ125B7W1B...

Page 13: ...ons as the main unit In note 1 are the indoor units mentioned in order of the possible function most functions are on FCQ less functions are on FAQ 4 Between brackets are the required Refnet kits ment...

Page 14: ...of two or more refrigerants having similar boiling points 3 The design pressure is different at each product Please refer to the installation manual for each product Reference 1 Mpa 1 0 19716 kgf cm2...

Page 15: ...ermodynamic characteristic of R410A Temperature Steam pressure kPa Liquid Vapor Density kg m3 Liquid Vapor Specific heat at constant pressure kJ kgK Liquid Vapor Specific enthalpy kJ kg Liquid Vapor S...

Page 16: ...at must be followed to prevent accidents with high pressure gases Be sure to follow the regulations 2 Handing of vessels Since R410A is high pressure gas it is contained in high pressure vessels Altho...

Page 17: ...arge hose X P Do not use the same tools for R22 and R410A P Thread specification differs for R410A and R407C Charging cylinder X O P Weighting instrument used for HFCs Gas detector O X P The same tool...

Page 18: ...on A Pipe size R407C R410A Material Thickness tmmj Material Thickness tmmj 6 4 O 0 8 O 0 8 9 5 O 0 8 O 0 8 12 7 O 0 8 O 0 8 15 9 O 1 0 O 1 0 19 1 O 1 0 1 2H 1 0 Nominal size Tube O D A Do Class 2 R410...

Page 19: ...aring with a pipe extension margin of 1 0 to 1 5 mm For clutch type only Conventional tool with pipe extension margin adjustment can be used Torque wrench P Specifications Dimension B Unit mm No chang...

Page 20: ...ling adaptor Leak tester P Specifications Hydrogen detecting type etc Applicable refrigerants R410A R407C R404A R507A R134a etc P Differences Previous testers detected chlorine Since HFCs do not conta...

Page 21: ...e scale indicates the relationship between pressure and temperature in gas saturated state P Differences Change in pressure Change in service port diameter Charge hose for R410A P Specifications Worki...

Page 22: ...rge P Specifications High accuracy TA101A for 10 kg cylinder 2g TA101B for 20 kg cylinder 5g Equipped with pressure resistant sight glass to check liquid refrigerant charging A manifold with separate...

Page 23: ...t 1 System Outline What is in this part This part contains the following chapters Chapter See page 1 General Outline Outdoor Units 1 3 2 Specifications 1 11 3 Functional Diagrams 1 21 4 Switch Box Lay...

Page 24: ...ESIE05 03 1 2 Part 1 System Outline 3 1 1 5...

Page 25: ...chapter contains the following information on the outdoor units P Outlook and dimensions P Installation and service space P Components General outline This chapter contains the following general outl...

Page 26: ...1 4 Part 1 System Outline 3 1 1 4 5 1 2 RZQ71 Outlook and Dimensions Outlook and dimensions The illustration below shows the outlook and the dimensions of the unit mm Installation and service space S...

Page 27: ...able below contains the different components of the unit No Component 1 Gas pipe connection 2 Liquid pipe connection 3 Service port inside the unit 4 Grounding terminal M5 inside the switch box 5 Refr...

Page 28: ...6 Part 1 System Outline 3 1 1 4 5 1 3 RZQ100 140 Outlook and Dimensions Outlook and dimensions The illustration below shows the outlook and the dimensions of the unit mm Installation and service spac...

Page 29: ...ntains the different components of the unit No Component 1 Gas pipe connection 2 Liquid pipe connection 3 Service port inside the unit 4 Electronic connection and grounding terminal M5 inside the swit...

Page 30: ...allation and service space mm The values between brackets are for the 100 140 class Suction side obstacle Discharge side obstacle Left side obstacle Right side obstacle Top side obstacle Obstacle is p...

Page 31: ...t the portion A sealed so that air from the outlet does not bypass Multiple rows The illustration below shows the required installation and service space mm The values in brackets are for the 100 140...

Page 32: ...General Outline Outdoor Units ESIE05 03 1 10 Part 1 System Outline 3 1 1 4 5...

Page 33: ...pter Introduction This chapter contains the following information P Technical specifications P Electrical specifications P Electrical data Outdoor units This chapter contains the following specificati...

Page 34: ...103 00 m min 99 00 m min Air flow rate nominal at 230 V heating 48 10 m min 101 00 m min 100 00 m min Fan motor quantity 1 2 Fan motor model KFD 325 70 8A Motor speed nominal at 230 V Nr of steps 8 Mo...

Page 35: ...quantity 1 Gas type Flare connection Gas diameter OD 15 9 mm Drain quantity 3 Drain type Hole Drain diameter OD 26 0 mm Piping length min 5 m Piping length max 50 m 75 m Piping length equivalent 70 m...

Page 36: ...5x2 FHQ71BUV1B RZQ71B8V3B 50 230 17 1 17 1 20 16 2 16 2 0 07 0 3 0 062 0 6 FHQ35BUV1Bx2 RZQ71B8V3B 50 230 17 7 17 7 20 16 2 16 2 0 07 0 3 0 062x2 0 6x2 FAQ71BUV1B RZQ71B8V3B 50 230 16 8 16 8 20 16 2 1...

Page 37: ...07 0 07 0 3 0 3 0 090 1 0 FCQ60B7V1x2 RZQ125B8V3B 50 230 25 2 25 2 32 23 4 23 4 0 07 0 07 0 3 0 3 0 045x2 0 6x2 FCQ50B7V1x3 RZQ125B8V3B 50 230 25 8 25 8 32 23 4 23 4 0 07 0 07 0 3 0 3 0 045x3 0 6x3 FC...

Page 38: ...flow rate nominal at 230 V cooling 103 00 m min 99 00 m min Air flow rate nominal at 230 V heating 101 00 m min 100 00 m min Fan motor quantity 2 Fan motor model KFD 325 70 8A Motor speed nominal at...

Page 39: ...ity 1 Gas type Flare connection Gas diameter OD 15 9 mm Drain quantity 3 Drain type Hole Drain diameter OD 26 0 mm Piping length min 5 m Piping length max 75 m Piping length equivalent 95 m Piping len...

Page 40: ...0 07 0 07 0 3 0 3 0 130 0 7 FHQ50BUV1Bx2 RZQ100B7W1B 50 400 14 7 14 7 20 12 9 12 9 0 07 0 07 0 3 0 3 0 062x2 0 6x2 FHQ35BUV1Bx3 RZQ100B7W1B 50 400 15 3 15 3 20 12 9 12 9 0 07 0 07 0 3 0 3 0 062x3 0 6x...

Page 41: ...50Hz 360V 14 2 14 2 20 12 9 12 9 0 07 0 07 0 3 0 3 0 120 0 7 FCQ71DV3Bx2 RZQ140B7W1B 50 400 14 1 14 1 20 12 9 12 9 0 07 0 07 0 3 0 3 0 030x2 0 3x2 FCQ71B7V3Bx2 RZQ140B7W1B 50 400 14 7 14 7 20 12 9 12...

Page 42: ...Specifications ESIE05 03 1 20 Part 1 System Outline 3 1 1 4 5...

Page 43: ...wing information P Functional diagrams P Pipe connection diameters Functional diagrams This chapter contains the following functional diagrams Functional diagram See page 3 2 Pair System 1 22 3 3 Twin...

Page 44: ...ams ESIE05 03 1 22 Part 1 System Outline 3 1 1 4 5 3 2 Pair System RZQ71 6 15 14a 14a 14a 14a 16 8 5a 14a 11 1a 4 16 7 9 10 Liquid piping Indoor unit 2b 3 Heating Cooling 7 Outdoor unit Gas piping 12...

Page 45: ...Functional Diagrams Part 1 System Outline 1 23 3 1 4 5 RZQ100 140 6 15 14a 14a 14a 14a 8 5a 11 1a 4 16 7 9 10 Liquid piping Indoor unit 2b 3 Heating Cooling 7 Outdoor unit Gas piping 12 10 8 17 1a 1a...

Page 46: ...RZQ71 6 15 14a 14a 14a 14a 8 5a 11 4 16 7 9 10 Liquid piping Indoor unit 2b 3 Heating Cooling 7 Outdoor unit Gas piping 12 10 Indoor unit 7 14a 16 NOTE The pipes between the branch and the indoor uni...

Page 47: ...6 15 14a 14a 14a 14a 8 5a 11 4 16 8 9 10 Liquid piping Indoor unit 2b 3 Heating Cooling 7 Outdoor unit Gas piping 12 Indoor unit 7 10 8 19 NOTE The pipes between the branch and the indoor units shoul...

Page 48: ...15 14a 14a 14a 14a 8 5a 11 4 16 9 10 Liquid piping 2b 3 Heating Cooling 7 Outdoor unit Gas piping 12 Indoor unit 7 17 10 8 Indoor unit 7 Indoor unit 7 19 NOTE The pipes between the branch and the indo...

Page 49: ...14a 14a 8 5a 11 4 16 9 10 Liquid piping 2b 3 Heating Cooling 7 Outdoor unit Gas piping 12 17 10 8 Indoor unit 7 19 8 NOTE The pipes between the branch and the indoor units should have the same size a...

Page 50: ...em Outline 3 1 1 4 5 3 6 Pipe Connection Diameters Outdoor units The table below contains the refrigerant pipe connection diameters Model Gas pipe flare Liquid pipe flare RZQ71B8V3B 15 9 mm 9 52 mm RZ...

Page 51: ...n proceed with pump down operation without interruption Check the compressor of the existing air conditioner for fault records Remove the existing air conditioner See if the contamination inside the e...

Page 52: ...aks if the local piping has welded connections Notes for Twin Triple and Double Twin P Main piping L1 can be re used size up size down is allowed see further in this section for restrictions P Re use...

Page 53: ...only P Not using the standard pipe size may result in capacity decrease It is up to the installer to judge on this phenomenon carefully in function of the complete installation Refrigerant pipe size...

Page 54: ...m 15 m standard 50 m 70 m 50 m 70 m 50 m 70 m size up 25 m 35 m 35 m 45 m 35 m 45 m Maximum total one way piping length Twin L1 L2 L3 50 m 50 m 50 m Triple L1 L2 L3 L4 Double twin L1 L2 L3 L4 L5 L6 L...

Page 55: ...d first screw the nut 3 or 4 turns by hand Coat the indicated surfaces using ether or ester oil P After completing the installation carry out an inspection of the piping connections by pressure test u...

Page 56: ...Functional Diagrams ESIE05 03 1 34 Part 1 System Outline 3 1 1 4 5...

Page 57: ...It is also used as a container in which surplus refrigerant is stored 10 Check valve with service port The check valve allows you to connect a gauge 11 Low pressure sen sor RZQ71 The low pressure sen...

Page 58: ...ESIE05 03 1 36 Part 1 System Outline...

Page 59: ...Switch Box Layout 4 1 What Is in This Chapter Introduction This chapter shows the switch box components Outdoor units This chapter contains the following switch box layouts Switch box layout See page...

Page 60: ...ESIE05 03 1 38 Part 1 System Outline 3 1 1 4 5 4 2 RZQ71B8V3B The illustration below shows the switch box layout Item Description A1P Printed circuit board control A2P Printed circuit board inverter X...

Page 61: ...x Layout Part 1 System Outline 1 39 3 1 4 5 4 3 RZQ100 125B8V3B The illustration below shows the switch box layout Item Description A1P Printed circuit board control A2P Printed circuit board inverter...

Page 62: ...IE05 03 1 40 Part 1 System Outline 3 1 1 4 5 4 4 RZQ100 140B7W1B The illustration below shows the switch box layout Item Description A1P Printed circuit board control A2P Printed circuit board inverte...

Page 63: ...grams 5 1 What Is in This Chapter Introduction This chapter contains the wiring diagrams of the outdoor and indoor units Outdoor units This chapter contains the following wiring diagrams Wiring diagra...

Page 64: ...OWN GREEN ORANGE RED WHITE YELLOW CONNECTOR PROTECTIVE EARTH SCREW TERMINAL TERMINAL FIELD WIRING RELAY CONNECTOR L LIVE N NEUTRAL EL COMPO ASSY FRONT VIEW A indoor outdoor ON OFF 71 CLASS NOTE 1 NOTE...

Page 65: ...h High HAP A1P A2P Light emitting diode Service monitor green S1NPL Pressure sensor Low TC Signal transmission circuit H1P A1P Light emitting diode Service monitor red V1R Power module V2R V3R Diode m...

Page 66: ...TECTIVE EARTH SCREW TERMINAL TERMINAL CONNECTOR RELAY CONNECTOR L LIVE N NEUTRAL BLACK BLUE GREEN RED WHITE YELLOW EL COMPO ASSY FRONT VIEW A REACTOR BOX indoor outdoor ON OFF 100 125 CLASS NOTE 1 NOT...

Page 67: ...r circuit F2U Fuse S1PH Pressure switch High F3U Fuse B 5A 250V S1PL Pressure switch Low HAP A1P A2P Light emitting diode Service monitor green TC Signal transmission circuit V1R Power module H1P A1P...

Page 68: ...VE EARTH SCREW TERMINAL TERMINAL CONNECTOR RELAY CONNECTOR L LIVE N NEUTRAL EL COMPO ASSY FRONT VIEW A REACTOR BOX indoor outdoor ON OFF 100 125 140 CLASS NOTE 1 NOTES 1 REFER TO THE OPTION MANUAL FOR...

Page 69: ...le F3U Fuse B 5A 250V RC Signal receiver circuit F4U Fuse B 10A 250V S1PH Pressure switch High F1U A2P Fuse S1PL Pressure switch Low HAP A1P A2P Light emitting diode Service monitor green TC Signal tr...

Page 70: ...Wiring Diagrams ESIE05 03 1 48 Part 1 System Outline 3 1 1 4 5...

Page 71: ...hapter Introduction This chapter contains the following information P It describes which unit uses which PCB types P It shows the PCB connectors Outdoor units This chapter contains the following PCB l...

Page 72: ...PCB Layout ESIE05 03 1 50 Part 1 System Outline 3 1 1 4 5 6 2 RZQ71B8V3B Control PCB The illustration below shows the PCB connectors...

Page 73: ...al strip connector X3A X205A on inverter PCB X6A For optional PCB KRP58M51 X12A Y1E Expansion valve X17A R3T Discharge pipe thermistor X18A R4T Suction pipe thermistor X19A R2T Coil thermistor X20A R1...

Page 74: ...PCB Layout ESIE05 03 1 52 Part 1 System Outline 3 1 1 4 5 Inverter PCB The illustration below shows the PCB connectors...

Page 75: ...1 53 3 1 4 5 Connectors The table below describes the PCB connectors Connector Connected to Description X60A S1PH High pressure switch X201A M1C Compressor motor X205A X3A on control PCB X206A M1F Fa...

Page 76: ...PCB Layout ESIE05 03 1 54 Part 1 System Outline 3 1 1 4 5 6 3 RZQ100 125B8V3B Control PCB The illustration below shows the PCB connectors...

Page 77: ...CB X6A For optional PCB KRP58M51 X8A X108A on inverter PCB X11A R1T Air thermistor X12A R2T Coil thermistor X13A R3T Discharge pipe thermistor X14A R4T Suction pipe thermistor X21A Y1E Expansion valve...

Page 78: ...PCB Layout ESIE05 03 1 56 Part 1 System Outline 3 1 1 4 5 Inverter PCB The illustration below shows the PCB connectors...

Page 79: ...1 4 5 Connectors The table below describes the PCB connectors Connector Connected to Description X102A M1C Compressor motor X104A X4A on control PCB X106A M1F Fan motor X107A M2F Fan motor X108A X8A...

Page 80: ...PCB Layout ESIE05 03 1 58 Part 1 System Outline 3 1 1 4 5 6 4 RZQ100 140B7W1B Control PCB The illustration below shows the PCB connectors...

Page 81: ...X6A For optional PCB KRP58M51 X8A X108A on inverter PCB X9A X109A on inverter PCB X11A R1T Air thermistor X12A R2T Coil thermistor X13A R3T Discharge pipe thermistor X14A R4T Suction pipe thermistor X...

Page 82: ...PCB Layout ESIE05 03 1 60 Part 1 System Outline 3 1 1 4 5 Inverter PCB The illustration below shows the PCB connectors...

Page 83: ...ctors The table below describes the PCB connectors Connector Connected to Description X102A M1C Compressor motor X104A X4A on control PCB X106A M1F Fan motor X107A M2F Fan motor X108A X8A on control P...

Page 84: ...PCB Layout ESIE05 03 1 62 Part 1 System Outline 3 1 1 4 5...

Page 85: ...ion on the functions used to control the system Understanding these functions is vital when diagnosing a malfunction that is related to the functional control Overview This part contains the following...

Page 86: ...ESIE05 03 2 2 Part 2 Functional Description 3 1 2 5...

Page 87: ...iew This chapter contains the following topics Topic See page 1 2 Functions of Thermistors 2 4 1 3 Forced Operating Mode Emergency Operation 2 6 1 4 Outdoor Unit Identification Function 2 8 1 5 Simula...

Page 88: ...on 1 Indoor heat exchanger R2T Cooling P Compressor frequency control target Te P Inverter current protection control P Freeze up control Heating P Compressor frequency control target Tc P Inverter cu...

Page 89: ...trol RZQ71 5 Discharge pipe R3T Cooling P Discharge superheat control P Expansion valve control P Crankcase heater preheating control Heating P Expansion valve control P Crankcase heater preheating co...

Page 90: ...ration by changing the emergency switch back to normal while the power is OFF Emergency operation Below table explains what will happen when the switch is set to emergency How to set Emergency Operati...

Page 91: ...tion can not be carried out when the PCB board itself is defective P Be sure to set the emergency switch on both the outdoor and indoor unit P The unit will not regulate the temperature during emergen...

Page 92: ...ing mode has to be set in function of the type of connected outdoor unit c o or h p Operating modes The possible operating modes are Used input The outdoor unit identification function uses the follow...

Page 93: ...the Inspection button on the remote controller Sensors P Outside temperature thermistor P Outdoor heat exchanger thermistor P Fin thermistor P Discharge pipe thermistor P Indoor unit air suction therm...

Page 94: ...e equalization forced thermostat OFF will be conducted after compressor stopping compressor guard timer Graph Parameters Thermostat OFF Compressor Electronic expansion valve Oudoor unit fan ON ON OFF...

Page 95: ...e remote control s ON OFF switch is still ON the automatic restart function automatically starts the indoor fan immediately and the outdoor unit fan starts automatically 3 minutes after the power supp...

Page 96: ...ged from 18 C to 30 C A F This example also assumes there are several other air conditioners the VRV system is off and that temperature changes even when the thermostat sensor is off Body thermostat s...

Page 97: ...from 25 C to 28 C C D And assuming suction temperature has changed from 28 C to 18 C D A Remote controller thermostat sensor is used for temperatures from 28 C to 23 C D B Body thermostat sensor is u...

Page 98: ...hanger from freezing in cooling operation when one of the below conditions is applicable P Indoor unit heat exchanger temperature 5 C for 1 minute continuously P Indoor unit heat exchanger temperature...

Page 99: ...code if required P If the remote controller shows E3 E4 or L8 as an error code there is possibility that either the stop valve is closed or the air flow outlet is obstructed P Check the inter unit br...

Page 100: ...d out during operation because a certain pressure difference is required to move the internal cylinder Method The table below describes the 4 way valve control operation Time chart The time chart belo...

Page 101: ...exchanger in order to prevent liquid refrigerant from remaining in the indoor heat exchanger Parameters Graph Ending condition Low pressure value is calculated in case of RZQ100 140B RZQ71B RZQ100 140...

Page 102: ...ed Be sure not to operate the unit with closed stop valves or the compressor may brake down Procedure Precautions 1 Start Fan only operation from the remote controller Confirm that both the liquid and...

Page 103: ...Te is within the defrost requesting area RZQ71 P Outdoor unit heat exchanger area temperature Tb is within the defrost requesting area Defrost prohibiting area Defrost permitting area Evaporating temp...

Page 104: ...Defrosting complete Previous control Compressor 4 way valve Motorized valve Outdoor unit fan Indoor fan ON 150 pls ON ON A pls A Hz B Hz C Hz ON 0 pls 15 seconds ON ON 0 pls 5 60 seconds wet protectio...

Page 105: ...ure 10 C P 10 seconds have elapsed since start of defrost operation P High Pressure 24 5bar calculated from LP inv frequency and PI P 10 minutes have elapsed since start of defrost operation OR P 1 mi...

Page 106: ...ting Freeze Prevention stop conditions Freeze prevention stop decided by the indoor unit factory setting P Indoor coil temperature 7 C for 10 minutes continuous Parameters Reference Please refer to Ou...

Page 107: ...el Refer to ISO 7730 for details Function An optimized indoor temperature will be calculated using the following inputs P Outdoor air temperature P Indoor air temperature P Remote controller set tempe...

Page 108: ...on will be activated in order to avoid refrigerant from dissolving in the compressor oil Trigger conditions Starting conditions P or P T2 Discharge pipe temperature 40 C P Ta Outside temperature 40 C...

Page 109: ...Crankcase Heater Control Applicable units RZQ100 140 Outline After the compressor has been turned off the crankcase heater control will be activated in order to avoid refrigerant from dissolving in t...

Page 110: ...General Functionality ESIE05 03 2 26 Part 2 Functional Description 3 1 2 4 5...

Page 111: ...details about the various functions that are programmed for the Sky Air R410A inverter indoor units Overview This chapter contains the following topics Topic See page 2 2 Thermostat Control 2 28 2 3 D...

Page 112: ...following conditions P For the first 2 5 minutes after operation starts or P Defrosting or P Forced Operating Mode or P Within the first 6 hours after power ON initial operation for the first 10 minut...

Page 113: ...ting and turned OFF 5 minutes after the compressor has stopped residual operation Float switch activation during thermostat OFF When an abnormal drain level is detected in the drain pan the float swit...

Page 114: ...r minimum 10 minutes even if abnormality is solved within the 10 minutes 3 If the float switch closes again within 80 seconds cooling operation can restart within the 10 minutes recovery period Used i...

Page 115: ...in the following operating modes P Cooling automatic P Dry keep Method To avoid condensation on the swing flap the condensation avoidance control is activated Stage Description 1 The fan operates in c...

Page 116: ...ntrol 1 uses the following inputs When the flap starts to move there can be a draft The fan speed decreases to LL speed but it takes some time because of its inertia Fan Flap Thermostat Setting LL Set...

Page 117: ...avoidance control 2 is activated when P Hot start is finished or P Cold air prevention control is finished Time chart If the fan speed is set to H the fan turns at low speed for a certain amount of t...

Page 118: ...w direction setting Set position Set position Set position Stop Error Swing operation OFF Horizontal Downward Airflow direction setting Set position Downward Freeze preven tion Swing operation L Horiz...

Page 119: ...n operation During this pump down operation the indoor fan will keep on operating Purpose P Cooling Minimize the remaining refrigerant amount in indoor unit heat exchanger P Heating Lower the high pre...

Page 120: ...OFF Heating operation is turend on with remote controller Indoor unit fan LL tap Condition A is met Indoor unit fan L tap Condition B is met Indoor unit fan M tap Continuing L tap on indoor unit witho...

Page 121: ...roduction This chapter will explain more details about the various functions that are programmed for the sky air R410A inverter outdoor units Overview This chapter contains the following topics Topic...

Page 122: ...nal Description 3 1 2 4 5 3 2 Function Outline Introduction This chapter will show an overview of all applicable functions in cooling and heating mode Content Topic See page 3 2 1 Function Outline in...

Page 123: ...ed valve PI control PMV control Low pressure protection control High pressure protection control Discharge pipe temperature protection control Inverter current protection control Inverter fin temperat...

Page 124: ...w pressure protection control High pressure protection control Heating overload control Discharge pipe temperature protection control Inverter current protection control Inverter fin temperature prote...

Page 125: ...nt Topic See page 3 3 1 Starting Frequency Control 2 42 3 3 2 General Frequency Control 2 45 3 3 3 Low Pressure Protection Control RZQ71 2 47 3 3 4 High Pressure Protection Control 2 49 3 3 5 Discharg...

Page 126: ...rting control time is 2 3 minutes The maximum starting frequency control time is limited to 10 minutes During compressor start up a pressure difference will be build up in order to have sufficient pre...

Page 127: ...before compressor start Pressure equalizing start Pressure equalizing complete Starting control complete Starting control RZQ71 73 Hz RZQ100 140 107 Hz RZQ71 480 pls RZQ100 140 65 pls 15s OFF ON OFF O...

Page 128: ...equalizing control before compressor start Pressure equalizing start Pressure equalizing complete Starting control complete Starting control RZQ71 73 Hz RZQ100 140 107 Hz RZQ71 480 pls RZQ100 140 65 p...

Page 129: ...0 seconds interval may be decreased so a quicker change is possible Note When other control functions are activated e g discharge pipe control they can change the compressor frequency using other inpu...

Page 130: ...at is programmed in the unit s memory Step No Compressor operation frequency RZQ71B RZQ100 140B 1 38Hz 41Hz 2 41Hz 44Hz 3 44Hz 48Hz 4 48Hz 52Hz 5 52Hz 55Hz 6 57Hz 58Hz 7 62Hz 69Hz 8 67Hz 72Hz 9 73Hz 7...

Page 131: ...tinuously Upper limit A Hz Copmressor upper limit frequency B Hz Compressor upper limit frequency C Hz Compressor upper limit frequency C Hz Compressor stop O Hz Malfunction stop E4 indication Within...

Page 132: ...tivates continuously Upper limit A Hz Copmressor upper limit frequency B Hz Compressor upper limit frequency C Hz Compressor upper limit frequency C Hz Compressor stop O Hz Malfunction stop E4 indicat...

Page 133: ...ration Compressor operation frequency B Hz Compressor stop Malfunction stop E3 indication Malfunction stop E3 indication Compressor stop Compressor operation frequency A Hz Compressor operation freque...

Page 134: ...C Compressor upper limit frequency 1 step 20 sec Compressor upper limit frequency 1 step 1 min Compressor upper limit frequency 79 Hz RZQ71 58 Hz RZQ100 140 Compressor stop Malfunction stop F3 indica...

Page 135: ...in the outdoor unit heat exchanger the upper limit frequency will be decreased Flow chart Normal operation Lowering upper limit frequency for 1 step every 20 seconds Raising upper limit frequency for...

Page 136: ...ncy 1 step 2 min Inverter current step down current Inverter upper limit frequency Maximum frequency The condition of Inverter current step down current continues for 2 minutes RZQ71B8V3B RZQ100 125B8...

Page 137: ...e the upper limit current value Upper limit compressor operating frequency 1 step 6 sec Normal operation Upper limit compressor operating frequency 1 step 2 min Outdoor unit current upper limit curren...

Page 138: ...ing L4 error activation By lowering the compressor frequency the current drawn by the compressor will be reduced and as a result the temperature inside the switch box will drop Flow chart Parameters F...

Page 139: ...it step 7 Upper limit step 6 Upper limit step 5 Upper limit step4 Upper limit step 3 Upper limit step 2 Upper limit step 1 Upper limit step 0 Outdoor fan OFF Condition B Condition B Condition B Condit...

Page 140: ...wall mounted indoor Upper limit frequency Lower limit frequency 71 109Hz 169Hz 38Hz 100 112Hz 174Hz 41Hz 125 140 139Hz Upper limit frequency Lower limit frequency 71 109Hz 48Hz 100 112Hz 72Hz 125 140...

Page 141: ...of 10 minutes Oil recovery operation is only executed in cooling mode In heating mode oil return to the compressor is guaranteed by the defrost operation Example Trigger conditions for 71 class P Comp...

Page 142: ...sion Valve Regulating Functions Introduction This chapter will explain the functions that are used to control the expansion valve opening Content Topic See page 3 4 1 Expansion Valve Control at Startu...

Page 143: ...will not be stable Graph Expansion valve opening during pressure equalization On RZQ71 units using double swing compressor the expansion valve will be fully opened to 480 pulses for pressure equalisat...

Page 144: ...get superheat amount When the target heat exchanger outlet superheat actual heat exchanger outlet superheat the expansion valve will close When the target heat exchanger outlet superheat actual heat e...

Page 145: ...trol Outline The expansion valve opening will be controlled in order to avoid abnormal high compressor discharge temperatures see also compressor operating frequency control Details RZQ71B RZQ100 140B...

Page 146: ...rt 2 Functional Description 3 1 2 4 5 3 5 Outdoor Unit Fan Speed Control Introduction This chapter will explain how the outdoor fan speed is determined in cooling and heating operation Content Topic S...

Page 147: ...Difference Control Fan step table RZQ71 Fan step table RZQ100 Step Cooling Heating 0 0 rpm 0 rpm 1 200 rpm 200 rpm 2 250 rpm 250 rpm 3 300 rpm 300 rpm 4 360 rpm 360 rpm 5 430 rpm 430 rpm 6 515 rpm 51...

Page 148: ...e 2 55 P Defrost Operation on page 2 19 Cooling Heating Step M1F M2F M1F M2F 0 0 rpm 0 rpm 0 rpm 0 rpm 1 250 rpm 0 rpm 250 rpm 0 rpm 2 400 rpm 0 rpm 285 rpm 250 rpm 3 285 rpm 250 rpm 335 rpm 300 rpm 4...

Page 149: ...shooting What is in this part This part contains the following chapters Chapter See page 1 Troubleshooting 3 3 2 Error Codes Indoor Units 3 41 3 Error Codes Outdoor Units 3 57 4 Error Codes System Mal...

Page 150: ...ESIE05 03 3 2 Part 3 Troubleshooting 3 1 3 5...

Page 151: ...Overview This chapter contains the following topics Topic See page 1 2 General Troubleshooting Flowchart 3 4 1 3 Overview of General Problems 3 5 1 4 Procedure of Self Diagnosis by Remote Controller 3...

Page 152: ...Units equipped with liquid crystal remote controllers only Operation is normal Temperature differential is 8 18 C The units runs but doesn t heat the room Measure the suction discharge temperature Is...

Page 153: ...ode during heating even if remote controller is set to Low It is normal It is caused by the activation of the overload control airflow shift control 16 Flap automatically moves during cooling It is no...

Page 154: ...ation switch or contact point P Faulty high pressure switch P Faulty magnetic switch for fan motor P Activation or fault of overcurrent relay for fan motor P Faulty overcurrent relay for compressor P...

Page 155: ...Possibly ftaulty electric component Wireless remote controller Is operation lamp on indoor unit signal receiving section flashing Turn on power switch or replace fuse If high harmonics circuit breake...

Page 156: ...perates but compressor does not Applicable Model All models of SkyAir series Method of Malfunction Detection Malfunction Decision Conditions Possible Causes P Faulty thermistor P Faulty indoor outdoor...

Page 157: ...nit fan runs at set airflow rate In cooling operation When air thermistor ambient temperature is higher than set temperature In heating operation When air thermistor ambient temperature is lower than...

Page 158: ...nt P Air intrudes into refrigerant system P Faulty pressure switch P Faulty magnetic switch for outdoor unit fan motor P Faulty aux relay for outdoor unit fan motor P Soiled heat exchanger of outdoor...

Page 159: ...rigerant overcharge Mixing of air in refrigerant system Faulty pressure switch Is there any item disturbing airflow Is the heat exchanger soiled Is the operation lamp of remote controller flashing NO...

Page 160: ...ection thermostat P Overcurrent relay may act due to the following reasons Lower voltage of power supply Excess level of high pressure Insufficient size of power cable Malfunction of compressor P Comp...

Page 161: ...tween inlet and outlet of expansion valve Is there any temperature difference between suction side and discharge side of four way valve Turn the operation switch ON and OFF then wait at ON side Check...

Page 162: ...y act due to the following reasons Lower voltage of power supply Excess level of high pressure Insufficient size of power cable Malfunction of compressor P Compressor protection thermostat may act due...

Page 163: ...Affection of direct sun Gas shortage possibly generates trouble Clogged air filter Soiled heat exchanger Malfunction of fan motor Refer error code A6 Possible causes as follows Refrigerant overcharge...

Page 164: ...Air intrudes into refrigerant system P Faulty pressure switch P Faulty magnetic switch for outdoor unit fan motor P Faulty aux relay for outdoor unit fan motor P Soiled heat exchanger of outdoor unit...

Page 165: ...m Gas shortage possibly generates trouble Clogged air filter Soiled heat exchanger Malfunction of indoor fan motor Refer error code A6 Refrigerant overcharge Soiled heat exchanger Short circuit of dis...

Page 166: ...ing mode after complete of defrosting during heating Continue unit operation It may be necessary to remove the source of humid condition Dust or oil mists should be removed Possible causes as follows...

Page 167: ...ces loud noise or shakes Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition Possible Cause P Faulty installation P Excess charge of refrigerant P Air intrud...

Page 168: ...ured Does the fan contact with other parts Does the pipe contact with casing Is the noise flushing sound from pressure reducing valve or capillary tube Correction of installation Reinforcement for cei...

Page 169: ...Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Install air filter Does the trouble generate at the time of operation start again after...

Page 170: ...e to turn off power switch before connect or disconnect connector or parts damage may be occurred Check the unit based on indoor unit LED and outdoor unit LED Trouble Shooting Trouble generates just a...

Page 171: ...conds Remark Some functions can force the swing flap into a fixed position altough swing mode is selected on the remote controller This is not an unit error but a control function to prevent draft to...

Page 172: ...uity reversed 220 240 VAC Turn the power supply off once and back on and measure the output voltage of connector X29A when the power supply is turned back on Disconnect X14A turn the power supply off...

Page 173: ...rvice settings can be made P Forced fan ON P Air flow direction volume setting Depress Inspection Test Operation button for more than 4 seconds Following codes can be checked P Malfunction codes P Ind...

Page 174: ...nd malfunction code is displayed Even if stop operation is carried out malfunction contents are displayed when inspection mode is entered The malfunction code enables you to tell what kind of malfunct...

Page 175: ...te controller the wireless remote controller does not display the error code Instead the operation LED on the light reception section flashes Checking To find the error code proceed as follows Step Ac...

Page 176: ...Press the MODE selector button The left 0 upper digit indication of the error code flashes Step Action If you hear Then 3 short beeps Follow all steps below 1 short beep Follow steps 3 and 4 Continue...

Page 177: ...igit until the receiver of the remote controller starts to beep 5 Press the MODE selector button The right 0 lower digit indication of the error code flashes Step Action If you hear Then 2 short beeps...

Page 178: ...hange the error code lower digit until the receiver of the remote controller generates a continuous beep 7 Press the MODE button to return to normal status If you do not press any button for at least...

Page 179: ...sure outdoor Failure of low pressure sensor system Check if the stop valve open E5 Compressor motor lock malfunction Compressor motor lock incorrect wiring E7 Outdoor fan motor lock or outdoor fan ins...

Page 180: ...gas malfunction Abnormal suction pipe temperature U2 Abnormal power supply voltage Including malfunction of K1M K2M U4 UF Failure of transmission between indoor and outdoor unit Transmission between i...

Page 181: ...ture display 3 Operation halts due to malfunction depending on the model or condition 4 If LED B is off the transmission wiring between indoor and outdoor unit may be incorrect or disconnected Before...

Page 182: ...iagnose the problem 2 Turn off the power switch After 5 seconds or more disconnect the connection wire 2 Then turn on the power switch If the HAP on the outdoor unit PCB flashes after about 10 seconds...

Page 183: ...ion Reference Page H1P H2P Other than PC Board PC Board Out door Unit Indoor Unit Remote Controller c c Note 1 Normal to outdoor unit c w A1 Malfunction indoor unit PC board For troubleshoot ing by LE...

Page 184: ...onic expan sion valve 3 69 F3 Discharge pipe temperature malfunction 3 71 H3 Faulty high pressure switch HPS 3 73 H4 Abnormal low pressure switch 3 74 H9 Malfunction of outdoor air temperature sensor...

Page 185: ...ction Reference Page Other than PC Board PC Board Outdoor Unit Indoor Unit Remote Controller U4 or UF Transmission error between indoor and outdoor unit 3 96 U5 Transmission error between indoor and r...

Page 186: ...ubleshooting ESIE05 03 3 38 Part 3 Troubleshooting 3 1 3 4 5 1 10 Overview of the Outdoor Safety Devices High pressure switch Fuse Open Close RZQ71 4 0 Mpa 0 0 15 3 0 0 15 6 3A 250V RZQ100 RZQ125 RZQ1...

Page 187: ...r Thermal fuse fan motor Abnormal Reset automatic FFQ35 60 130 C 5 C 83 C 20 C N A FCQ35 71B 130 C 5 C 83 C 20 C N A FCQ100 125B 140 C 5 C 45 C 15 C N A FBQ35 125 N A N A 152 C FDQ125 N A N A 160 C FH...

Page 188: ...Troubleshooting ESIE05 03 3 40 Part 3 Troubleshooting 3 1 3 4 5...

Page 189: ...his means that you have to wait until the system shuts down to be able to see the flashing LED on the front panel and the error code on the remote controller Overview This chapter contains the followi...

Page 190: ...y and usually requires more voltage for erasure than the common 5 volts used in logic circuits It functions like non volatile RAM but writing to EEPROM is slower than writing to RAM Causes The possibl...

Page 191: ...eration The error is generated when the water level reaches its upper limit and when the float switch turns OFF Causes The possible causes are P Malfunctioning drain pump P Improper drain piping work...

Page 192: ...s A3 appear on the remote controller display 220 240 VAC Is there continuity Is the optional drain raising mechanism connected Is the short circuit connector connected to X15A on the indoor unit PCB C...

Page 193: ...installed Is drain pump normal Does drain water flow in reverse during non operation Is amount of circulated drain water excessive after pump stops operation Clogged drain water discharge system Clogg...

Page 194: ...Error Codes Indoor Units ESIE05 03 3 46 Part 3 Troubleshooting 3 1 3 4 5 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred...

Page 195: ...indications Error generation The error is generated when the fan rotations are not detected while the output voltage to the fan is at its maximum Causes The possible causes are P Malfunctioning indoo...

Page 196: ...onnect connector or parts damage may be occurred Check the connections of X20A and X26A Check indoor unit fan motor and motor wiring Are X20A and X26A properly connected Is there about 12 VDC Connect...

Page 197: ...ted by the limit switch when the motor turns When ON OFF of the microswitch for position detection cannot be reversed eventhough the swing flap motor is energized for a specified amount of time about...

Page 198: ...inuity no continuity reverse 220 240 VAC Connect correctly Turn the power supply off once and back on and check whether the swing flap motor swings when the power supply is turned back on Turn the pow...

Page 199: ...ollowing case In case the indoor PCB installed at the factory is for some reason changed at the installation site the capacity will not be contained in the replacement PCB To set the correct capacity...

Page 200: ...capacity setting adapter plugged into X23A of the indoor unit PCB Is AJ displayed on the remote controller Plug a capacitor setting adapter that matches the capacity of the unit into X23A The malfunc...

Page 201: ...ng compressor operation P Thermistor input 4 96 V or P Thermistor output 0 04 V Causes The possible causes are P Malfunctioning connector connection P Malfunctioning thermistor P Malfunctioning PCB P...

Page 202: ...Troubleshooting 3 1 3 4 5 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred C4 Indoor liquid pipe thermistor R2T C5 Gaspip...

Page 203: ...if the remote controller thermistor is malfunctioning the system can operate with the system thermistor Causes The possible causes are P Malfunctioning thermistor P Broken wire Troubleshooting Caution...

Page 204: ...running Even if the sensor is malfunctioning the system can operate Causes The possible causes are P Malfunctioning sensor P Broken wire Troubleshooting Caution Be sure to turn off power switch befor...

Page 205: ...7 Malfunction of Outdoor Unit Fan Motor E7 3 67 3 8 Malfunction of Electronic Expansion Valve E9 3 69 3 9 Malfunctioning in Discharge Pipe Temperature F3 3 71 3 10 Malfunctioning HPS System H3 3 73 3...

Page 206: ...on Supposed Causes P Faulty outdoor unit PC board Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Turn the power supply...

Page 207: ...is actuated Actuating pressure RZQ71 140 Supposed Causes P Faulty high pressure switch P Disconnection in high pressure switch harness P Faulty connection of high pressure switch connector P Clogged i...

Page 208: ...ating then check the following Is there continuity in control and protection HPS Correct the high pressure Replace the outdoor unit PC board Replace the high pressure switch HPS NO YES Connect correct...

Page 209: ...of low pressure Lower than 0 15MPa P Defect of low pressure sensor P Defect of outdoor unit PC board P Stop valve is not opened Troubleshooting 1 Voltage measurement point Low pressure at stop due to...

Page 210: ...e sensor check on page 3 115 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Outdoor unit PC board A1P GND 5V Low pressure sensor X64A b...

Page 211: ...low pressure switch is activated during compressor operation Causes The possible causes are P Malfunctioning refrigerant piping circuit P Malfunctioning low pressure switch P Disconnected or broken l...

Page 212: ...the power OFF and back ON after 2 or 3 minutes Check the continuity of the LPS for control and safety Open the stop valve Replace LPS without continuity Fault in refrigerant piping Replace the outdoor...

Page 213: ...pressor and detects the position signal pattern Malfunction Decision Conditions The position signal with 3 times cycle as imposed frequency is detected when compressor motor operates normally but 2 ti...

Page 214: ...Is the stop valve open YES NO NO Is high pressure higher than 2 6 MPa at starting YES NO Check and see whether compressor is short circuited or ground YES Are inverter output voltages the same for 3 p...

Page 215: ...s down Supposed Causes P Malfunction of fan motor P The harness connector between fan motor and PC board is left in disconnected or faulty connector P Fan does not run due to foreign matters tangled P...

Page 216: ...Error Codes Outdoor Units ESIE05 03 3 68 Part 3 Troubleshooting 3 1 3 4 5 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred...

Page 217: ...opening degree calculated by values of low pressure sensor and suction pipe temperature thermistor Malfunction Decision Conditions When the following conditions are met for 10 minutes P Suction pipe s...

Page 218: ...nd back on Problem could be caused by external factor noise etc other than malfunction Connect correctly Replace the motorized valve coil Replace the main unit of solenoid valve Y2S Replace the electr...

Page 219: ...erature detected by the discharge pipe temperature sensor Malfunction Decision Conditions P When the discharge pipe temperature rises to an abnormally high level P When the discharge pipe temperature...

Page 220: ...temperature high See 1 Is the discharge pipe thermistor attached to the discharge pipe Abnormality in refrigerant system such as gas shortage faulty compressor etc Conduct inspection Connect correctly...

Page 221: ...nnection of high pressure switch connector P Faulty outdoor unit PC board P Disconnected lead wire Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or pa...

Page 222: ...d under specific pressure 0 12MPa Malfunction Decision Conditions When there is no continuity in the LPS during compressor start operating LPS is not operated when the low pressure is dropped under sp...

Page 223: ...damage may be occurred Turn off the power supply After 10 minutes check the following Is low pressure abnormally low Is LPS connector connected to outdoor PC board 1 Is there continuity in control an...

Page 224: ...PC board control PC board Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred YES YES NO Check connectors for connection Con...

Page 225: ...ection P Defect of outdoor unit PC board Troubleshooting 1 Voltage measurement point 2 Refer to pressure sensor pressure voltage characteristics table on page 3 115 Replace the low pressure sensor Con...

Page 226: ...Error Codes Outdoor Units ESIE05 03 3 78 Part 3 Troubleshooting 3 1 3 4 5 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred...

Page 227: ...ture P Insufficient cooling of inverter radiation fin P Blocked suction opening P Dirty radiation fin P Faulty outdoor unit PCB Troubleshooting Fin temperature detection values Caution Be sure to turn...

Page 228: ...ransistor into voltage with CT1 DC current sensor Malfunction Decision Conditions When overcurrent has run to power transistor Actuated even by instantaneous overcurrent Supposed Causes P Faulty compr...

Page 229: ...ply voltage Is the inverter output voltage generated approximately at the same increasing speed for each phase after turning on again U V V W W U Open the stop valve Replace the compressor Replace the...

Page 230: ...by converting the current flowing to power transistor into voltage with CT1 DC current sensor Inverter PC board detects the disorder of position signal Malfunction Decision Conditions When compressor...

Page 231: ...YES NO NO YES NO When operating compressor with compressor output line disconnected the compressor stops due to malfunction after elapsed time of 5 seconds Therefore check the voltage increase for 5 s...

Page 232: ...verting the current flowing to power transistor into voltage with CT1 DC current sensor Inverter PC board detects the disorder of position signal Malfunction Decision Conditions When compressor overlo...

Page 233: ...ch phase after turning on again U V V W W U Continuity check in the power transistor IGBT Is the continuity normal Is the stop valve open Check the installation conditions NO YES NO YES NO YES When op...

Page 234: ...etection Checks and sees whether transmission between control and inverter PC board is carried out normally Malfunction Decision Conditions When the transmission is not carried out in a specified peri...

Page 235: ...C board blinking Is E7 displayed on the remote controller Is LC not displayed Are connectors connecting the control and inverter PC board connected securely Disconnect the fan motor connector and turn...

Page 236: ...tage waveform of main circuit capacitor built in inverter Malfunction Decision Conditions When the aforementioned voltage waveform becomes identical with the waveform of the power supply open phase Su...

Page 237: ...ases large Inspect the main circuit wiring Service life of capacitor Has the capacitor been used for a long time Faulty diode module open disconnected Other factors than open phase Field factors Field...

Page 238: ...thermistor P Faulty outdoor unit PC board Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Disconnect the connector from...

Page 239: ...is made only when turning the power supply on Supposed Causes P Improper set value of E2PROM P Improper capacity setting adaptor P Faulty outdoor unit PC board Troubleshooting Caution Be sure to turn...

Page 240: ...low pressure is below 0 1 MPa continuously for 30 minutes In heating operation When the electronic expansion valve opens fully and the suction superheat is large more than 20 C continuously for 30 min...

Page 241: ...pply voltage Malfunction Decision Conditions When the voltage of main circuit capacitor built in the inverter and power supply voltage drop 150 170 VAC or when the power failure of several tons of ms...

Page 242: ...power supply voltage between 220 240 VAC 10 Check LED on outdoor unit PC board Is the voltage insufficient NO When the compressor is running measure the voltage between and of electrolytic capacitor C...

Page 243: ...er display The error code helps you to find the cause of the problem Overview This chapter contains the following topics Topic See page 4 2 Malfunction of Transmission between Indoor and Outdoor Unit...

Page 244: ...iagnosis of incorrect or broken disconnected wiring If the LEDs on the indoor unit PC board are off it indicates that the transmission wiring between indoor and outdoor units may be incorrect or broke...

Page 245: ...ce U4 is displayed at all times Turn OFF the power supply and disconnect No 3 wire of the Indoor Outdoor connection wiring and then turn ON the power supply again From the preceding page Check the con...

Page 246: ...e connect or disconnect connector or parts damage may be occurred Set one of the remote controllers to SUB turn off the power supply temporarily then restart operation Indoor unit PCB replacement Malf...

Page 247: ...ong SUB remote controllers P Malfunctioning remote controller PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Turn t...

Page 248: ...ode UA Error generation The error is generated when incorrect field settings have been set for pair twin triple double twin Causes The possible causes are P Malfunctioning indoor or outdoor unit PCB P...

Page 249: ...Is the remote controller connected to more than one indoor unit Are the microcomputer normal monitors HAP of all indoor unit PCB flashing Are the transmission normal montiors HBP of all indoor unit PC...

Page 250: ...n between indoor units Malfunction Decision Conditions When the microcomputer judges that the centralized address signal is duplicated Supposed Causes P Faulty centralized address setting P Faulty ind...

Page 251: ...g correctly Overview This chapter contains the following topics Topic See page 5 2 Outdoor unit Checking the Installation Condition 3 104 5 3 Outdoor Unit Checking the Expansion Valve 3 105 5 4 Checki...

Page 252: ...at exchanger No Change the installation location or direction No Yes Yes Check the spaces for all air passage around the suction and discharge areas Check the outdoor ambient temperature R1T This temp...

Page 253: ...r ON to check whether the expansion valve is producing a clicking sound 5 Check the coil current Open circuit normal short circuit 6 Check the clicking sound again If Then The expansion valve has no c...

Page 254: ...of thermistors The table below contains an overview of the thermistors Checking To check the thermistors proceed as follows Thermistor Description Indoor R1T Suction air thermistor R2T Heat exchanger...

Page 255: ...3 68 3 56 10 111 99 108 96 30 16 10 15 76 70 3 50 3 44 9 8 7 6 5 4 3 2 1 106 03 100 41 95 14 90 17 85 49 81 08 76 93 73 01 69 32 103 18 97 73 92 61 87 79 83 25 78 97 74 94 71 14 67 56 31 32 33 34 35...

Page 256: ...0 78 0 33 7 31 4 29 2 27 2 142 0 144 0 146 0 148 0 3 9 3 7 3 5 3 3 10 0 478 8 80 0 25 4 150 0 3 2 12 0 14 0 16 0 18 0 432 9 392 0 355 3 322 4 82 0 23 7 152 0 154 0 156 0 158 0 3 0 2 9 2 7 2 6 20 0 292...

Page 257: ...ction Is the piping length 5 meters or less Visual inspection Does air enter the refrigerant system Conduct refrigerant collection and vacuum dry ing and then add proper amount refrigerant Is the refr...

Page 258: ...the check valve is caught Is the LPS normal Check continuity using a tester Is the indoor unit installed under such conditions that short circuit easily occurs Visual inspection Is the refrigerant ga...

Page 259: ...ue to adherent contamination etc Replace the expan sion valve 2 Accumulator Frosting P Choked moisture Blow a nitrogen gas and then replace the refrigerant 3 Distributor Temperature difference P Dust...

Page 260: ...1 Turn the power supply off 2 With the fan motor connector disconnected measure the resistance between each pin then make sure that the resistance is more than the value mentioned in the following ta...

Page 261: ...contact terminal on the harness side with the connector connected For RZQ100 140 models 6 Disconnect the connector X207A with the power supply OFF and Operation OFF 7 Is the voltage between pins 4 and...

Page 262: ...power transistor is 50 V or less 3 Before measuring the continuity disconnect the connection between compressor and power transistor 4 Measure the continuity in the following procedure Judgment Norma...

Page 263: ...k White 5V Outdoor unit PC board Microcomputer A D input Measure voltage DC here n For RZQ71 models S2680 V3053 PH PL Kg cm MPa 5 0 4 5 4 0 3 5 3 0 2 5 2 0 1 5 1 0 0 5 0 5 1 5 2 5 0 5 0 5 0 1 2 3 5 3...

Page 264: ...Additional Checks for Troubleshooting ESIE05 03 3 116 Part 3 Troubleshooting 3 1 3 4 5...

Page 265: ...ing and Test Run 4 1 4 3 4 5 4 Part 4 Commissioning and Test Run What is in this part This part contains the following chapters Chapter See page 1 Pre Test Run Checks 4 3 2 Field settings 4 9 3 Test R...

Page 266: ...ESIE05 03 4 2 Part 4 Commissioning and Test Run 3 1 4 5...

Page 267: ...hapter contains the following information P Checks before test run P Test run checks P Setting the address for the receiver of the wireless remote controller P Setting the address for the wireless rem...

Page 268: ...nts Cautions or warnings Are all units securely installed P Dangerous for turning over during storm P Possible damage to pipe connections Is the earth wire installed according to the applicable local...

Page 269: ...ding to the table below You can find the wire less address switch attached on the PCB of the receiver and it is visible through the small opening on the back of the receiver 4 If you use a wired and a...

Page 270: ...to 1 To change this setting proceed as follows Step Action 1 Hold down the FILTER RESET button and the TEST button for at least 4 s to go to field set mode The display indicates the field set mode 2 P...

Page 271: ...and Test Run 4 7 3 4 5 1 3 Press the UP and DOWN buttons to set the address Set the same address as the receiver 1 2 or 3 The receiver does not work with addresses 4 5 and 6 4 Press the RESERVE button...

Page 272: ...e field set mode and return to the normal display Step Action UP FAN RESERVE CANCEL TIMER DOWN TEMP TIME ON OFF MODE SWING TEST C TEST Remote controller Indoor unit Setting Remote controller display C...

Page 273: ...4 10 2 3 How to Change the Field Settings with the Wireless Remote Controller 4 12 2 4 Overview of the Field Settings on the Indoor Units 4 13 2 5 Overview of the Factory Settings on the Indoor Units...

Page 274: ...ailable 3 Operation mode icon 22 Fan speed icon 4 Ventilation mode icon 23 Defrost hotstart mode icon 5 Ventilation icon 24 Air filter cleaning time icon 6 Air cleaning icon 25 Element cleaning time i...

Page 275: ...indoor units are set at the same time Use the codes 10 to 15 to apply this group control and proceed to the next step P If you want to set the indoor units of one group individually or if you want to...

Page 276: ...set the field settings you have to change P Mode No P First code No P Second code No To change the field settings proceed as follows RESERVE button INSPECTION TEST button Mode No Field setting mode UP...

Page 277: ...output Thermostat ON Option Operation Malfunction 1 EKRORO Forced OFF ON OFF oper ation 3 Fan speed heating thermostat OFF LL speed Set speed 5 Automatic restart Disabled Enabled 13 or 23 0 Ceiling he...

Page 278: ...No Second code No FCQ B FFQ FBQ FAQ FDQ FUQ FHQ FCQ D 10 or 20 0 01 01 01 01 01 01 01 01 1 01 01 01 02 01 01 2 02 02 02 02 02 02 02 02 3 01 01 01 01 01 01 01 01 11 or 21 0 01 01 01 01 01 01 01 01 1 0...

Page 279: ...ting The remote controllers are factory set to MAIN so you only have to change one remote controller from MAIN to SUB To change a remote controller from MAIN to SUB proceed as follows Step Action 1 In...

Page 280: ...witch ON the power supply of the central remote controller the unified ON OFF control ler and the indoor unit s 2 Hold down the INSPECTION TEST button for at least 4 s during normal mode to enter the...

Page 281: ...Field settings Part 4 Commissioning and Test Run 4 17 3 4 5 1 Individually address setting If the address must be set individually for each unit set the Mode No to 30 For example for power consumption...

Page 282: ...the highest level of the three field setting levels You can change the views in the inspection level by pressing the INSPECTION TEST button The flow chart below explains the different windows of the i...

Page 283: ...Q JJ 125 125 FUQ 3J 140 140 FCQ D FJ 200 200 FDQ UJ 250 250 Step Action 1 Hold down the INSPECTION TEST button for at least 4 s to enter the field setting mode 2 Hold down the INSPECTION TEST button f...

Page 284: ...3 Forced fan ON Turns the fan ON for each unit individually 44 Individual setting Sets fan speed and air flow direction for each unit individually when using group control Settings are made using the...

Page 285: ...04 05 16 or 26 0 Night time low noise operation Disabled Factory setting Automatic low noise activation Capacity preceding setting when using KRP58 option Automatic low noise capacity preceding 4 24 1...

Page 286: ...setting DIP switch Label on PCB Function Details DS1 1 ON OFF Switch emergency operation outdoor unit ON OFF See page 2 6 DS1 2 Cool Heat Select cooling heating emergency operation See page 2 6 DS1 3...

Page 287: ...Test Run 4 23 3 4 5 1 2 10 Overview of the Factory Settings on the Outdoor Units Factory settings The table below contains the factory settings of all outdoor units RZQ71 RZQ100 RZQ125 RZQ140 26 0 01...

Page 288: ...onducted for 10 hours The maximum outdoor temperature is supposed to occur at 14 00h As the time judgement is made in accordance with the outdoor temperature the above mentioned timing is an estimatio...

Page 289: ...e clock Capacity priority Setting Same as with the automatic control priority for capacity can be set Prioirity for capacity will be activated by changing field setting 26 0 03 in combination with the...

Page 290: ...nsumption during peak moments Setting 3 different demand setting can be selected by using terminal X801M P Demand 1 Close contact between COM and contact 1 P Demand 2 Close contact between COM and con...

Page 291: ...est Run 4 27 3 4 5 1 Demand 1 Power consumption limitation in function of setting on DS1 Demand 2 Power consumption limitation set to 40 Demand 3 Forced thermostat OFF DS1 SETTING Maximum Power Consum...

Page 292: ...ty applications such as computerrooms EDP rooms technical rooms etc to increase the capacity of the unit Definition of Low Humidity Area Caution When using the LH settings outside the Low Humidity Are...

Page 293: ...actual Te to avoid freeze up activation P Te 1 C for 20 minutes accumulated Change target Te 5 C P Te 1 C for 30 minutes accumulated Change target Te 8 C See graph 1 See graph 2 See graph 3 Freeze pr...

Page 294: ...Remote controller setting temp Te target limitted 20 C to protect the comp Te target limitted Indoor temp 11 not to rising wetbulb Te see note target acceptable area P Indoor temp setting Te target do...

Page 295: ...16 26 2 03 Note RZQ71 Te by LP sensor RZQ100 140 Te by calculation Remote controller setting temp Te target limitted 20 C to protect the comp Te see note target acceptable area P Indoor temp setting T...

Page 296: ...d avoid the rise of temperature after thermostat OFF the thermostat control will be changed when using field settings 16 26 2 03 16 26 2 04 Thermostat ON P Trs 0 5 C No change from standard setting Th...

Page 297: ...1 26 5 0 62 0 81 0 91 1 01 1 06 1 16 1 21 1 26 10 0 62 0 81 0 91 1 01 1 06 1 16 1 21 1 26 15 0 62 0 81 0 91 1 01 1 12 1 14 1 19 1 24 20 0 62 0 81 0 91 1 07 1 10 1 12 1 16 1 21 25 0 62 0 81 0 91 1 05 1...

Page 298: ...Field settings ESIE05 03 4 34 Part 4 Commissioning and Test Run 3 1 4 5 2 14 Defrost Start Setting See Defrost Operation on page 2 19...

Page 299: ...5 3 4 5 1 Part 4 3 Test Run and Operation Data Introduction This chapter contains the following information P General operation data P Operation ranges Overview This chapter contains the following top...

Page 300: ...remote controller are as given in the table below Indoor Unit Fan H Operation Compressor Rated Frequency High Pressure Mpa Low Pressure Mpa Discharge Pipe Temperature C Suction Temperature C Indoor U...

Page 301: ...aution When perfoming maintenance you should at least perform the following inspections Indoor Unit Conditions Outdoor Unit Conditions Cooling Operation 27 C DB 19 C WB 35 C DB Heating Operation 20 C...

Page 302: ...r Lower Lower Short Circuit of Indoor Unit Inlet Outlet Air Lower Lower Lower Outdoor Unit Fin Fouling Higher Higher Higher Short Circuit of Outdoor Unit Inlet Outlet Air Higher Higher Higher Air Mixe...

Page 303: ...lent piping length 7 5 m P Level difference 0 m P Air flow rate High Operation range Cooling The illustration below shows the operation range Operation range Heating The illustration below shows the o...

Page 304: ...1 4 5 Notes P Depending on operation and installation conditions the indoor unit can change over to freeze up operation Indoor de icing P To reduce the freeze up operation Indoor de icing frequency i...

Page 305: ...art 5 Disassembly and Maintenance 5 1 4 3 4 5 5 Part 5 Disassembly and Maintenance What is in this part This part contains the following chapters Chapter See page 1 Disassembly and Maintenance Outdoor...

Page 306: ...ESIE05 03 5 2 Part 5 Disassembly and Maintenance 3 1 5...

Page 307: ...e 5 3 3 5 1 5 Part 5 1 Disassembly and Maintenance Outdoor Units 1 1 What Is in This Chapter Introduction This chapter contains the following information on the outdoor units P Disassembly procedures...

Page 308: ...owing topics Topic See page Removal of Outside Panels 5 5 Removal of Propeller Fan and Fan Motor 5 6 Removal of Switch Box 5 7 Removal of PC Board Ass y 1 5 9 Removal of PC Board Ass y 2 5 11 Removal...

Page 309: ...slotted screwdriver and then push the overall grille downward to disassemble it For the front panel side front panel unscrew a single mounting screw and then push this panel downward to remove it For...

Page 310: ...or 1 2 3 4 Remove the connector for the fan motor from the PC board Symbol of connector RZQ71B8V3B X206A RZQ100 140B X206A X207A The lead wire is clamped in three places Click on partition plate 3 pla...

Page 311: ...a connection to the switch box P Disconnect the relay connector from the lead wire of the compressor Onlyon RZQ71B8V3B P Remove the lead wire of the compressor from the terminal cover of this compress...

Page 312: ...sembly and Maintenance 3 1 5 5 2 3 Unscrew the 2 screws that fix the switch box In order to remove the switch box disengage the three clicks one on the right and two on the left and then pull out this...

Page 313: ...C board for control use 1 Disconnect all connectors P Disconnect the relay connector from the lead wire of the compressor Only on RZQ71B8V3B P Remove the lead wire from the terminal cover of the compr...

Page 314: ...aintenance 3 1 5 5 2 P Unscrew a single screw from the PC board ass y for control use Note The plastic casing and the PC board are bonded to each other Therefore for the replacement of these parts rep...

Page 315: ...use 1 2 Disconnect all connectors Unscrew the three screws that fix the mounting plate of electrical components for control use Disengage the hooks in two places to remove the mounting plate of elect...

Page 316: ...nic expansion valve upward 2 Strip off the brazed sections in two places on the body of the valve and then remove this body 3 Remove the high pressure switch P RZQ100 140B 1 Disconnect the terminals f...

Page 317: ...RZQ71 140B 1 In order to remove the discharge pipe thermistor pinch the mounting spring and pull out this thermistor 2 For the heat exchange thermistor pull the clamp frontward and then remove this t...

Page 318: ...e sure there are no more refrigerants left in the unit before starting this removal P In order to prevent a gas welding flame from having influence on other pipes protect them with a sheet or iron pla...

Page 319: ...s are directly stripped off from the pipes oil may catch fire Be sure to cut the pipes in advance with a pipe cutter 1 Unscrew the five screws from the stop valve mounting plate 2 Disconnect the gas p...

Page 320: ...Disassembly and Maintenance Outdoor Units ESIE05 03 5 16 Part 5 Disassembly and Maintenance 3 1 5 5...

Page 321: ...53 Centralized Address Setting Error k 3 102 centralized group No setting k 4 16 changing field settings wired remote controller k 4 11 field settings wireless remote controller k 4 12 maintenance mod...

Page 322: ...tioner s Operation Status and Pressure Running Current k 4 38 D DC Output Overcurrent Instantaneous k 3 80 defrost operation k 2 19 defrost start setting k 4 34 diameters pipe connections k 1 21 dimen...

Page 323: ...ms double twin system k 1 27 pair system k 1 22 triple system k 1 26 twin system k 1 24 functional diagrams k 1 21 G Gas Shortage Malfunction k 3 92 H H3 k 3 73 H7 k 3 74 H9 k 3 76 I i demand function...

Page 324: ...ransmission system Between Control PCB and Inverter PCB k 3 86 Motor lock compressor k 3 65 indoor unit fan k 3 47 O Open Phase k 3 88 operation data k 4 36 operation range k 4 35 outlook outdoor unit...

Page 325: ...controller k 4 21 silent operation k 4 24 simulated operation function k 2 9 specifications k 1 11 Stall Prevention Time Lag k 3 84 Standard Conditions k 4 37 switch boxes k 1 37 T technical specifica...

Page 326: ...ESIE05 03 vi Index 3 1 4 5 U U0 k 3 92 U2 k 3 93 U4 k 3 96 U5 k 3 98 U8 k 3 99 UA k 3 100 UC k 3 102 UF k 3 96 W wiring diagrams indoor units k 1 41 outdoor units k 1 41...

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Daikin RZQ100B7W1B, Service Manual

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Summary of Contents for RZQ100B7W1B

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