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Daikin VRV Inverter K Series, Manual


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Functions

SiE-05C

28

Functions Inverter K Series

1.4

Safety for Restart

1.4.1

Restart Safety Timer

The compressor will not run for five minutes by making forced thermostat OFF condition in order to prevent 

it from being turned on and off in rapid succession, and to equalize pressure in the refrigerant circuit. It 

however restarts automatically after five minutes passes if it is in thermostat ON condition. The pressure 

equalizing solenoid valve is actuated for 10 minutes (15 minutes for 8 and 10HP heating only) after the 

compressor stops in order to equalize pressure.

If 10 minutes or more has elapsed since the compressor was turned off (15 minutes for 8 and 10HP heating 

only) , turn the solenoid valve for equalizing pressure on for about 1 minute and equalize the pressure. 

When heating, to prevent noise produced by the passing of indoor unit’s refrigerant to equalize pressure 

after the compressor stops, fully close the indoor unit’s electronic expansion valve for 5 minutes (10 

minutes for 8 and 10HP).

1.4.2

Soft Start

The following control is carried out to protect the compressor and inverter.

1. Operates at low frequency (fixed) for 1 minute after compressor starts. (Prevents liquid refrigerant 

backflow)

2. Pressure equalizing and hot gas bypass solenoid valves open and start low load.

Soft Start of 
Compressor

Thermostat

Thermostat ON

Thermostat
OFF

Thermostat OFF

Thermostat ON

Thermostat ON

Compressor

ON          

ON

ON

OFF

OFF      

5 minutes

Pressure equalizing 
solenoid valve

1 minute
(Soft start)  

10 minutes 
(15 minutes for 
 8.10 HP heating only)

1 minute
(Pressure
 equalizing)

1 minute
(Soft start)

Indoor unit 
electronic expansion 
valve (when heating) 

Linear control  

Fully closed 
0 pulses

Linear control  

Fully closed 
0 pulses

1000 pulses

5 minutes

(10 minutes 
for 8 and 10 HP)

240 pulses

1000 pulses

Linear control

OFF

OFF

ON

ON

OFF

ON

OFF

(VL005)

Compressor frequency

1 minute when started

Time

(VG001)

Frequency during soft start

5K

42Hz

8,10K

42Hz+OFF

SI-05C.BOOK  Page 28  Monday, November 6, 2000  4:13 PM

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Summary of Contents for VRV Inverter K Series

Page 1: ...unctinal Parts Setting Values 27 1 4 Safety for Restart 28 1 5 Equalized Oil Level Operation Equalized Oil Level between Twin Compressors 30 1 6 Oil Return Operation 31 1 7 Defrost 32 1 8 Heating Pump...

Page 2: ...DCS301B61 105 1 21 Schedule Timer DST301A51 DST301B61 108 1 22 Combining Different Types of Centralized Control Devices 112 Part 4 Troubleshooting Inverter K Series 117 1 Operation Flowcharts 119 1 1...

Page 3: ...3 31 Malfunction of Transmission Between Master and Slave Remote Controllers 154 3 32 Malfunction of Transmission Between Indoor and Outdoor Units in the Same System 155 3 33 Excessive Number of Indoo...

Page 4: ...caution 181 9 2 Typical Wiring Mistakes 182 Part 5 General Information PLUS Series 189 1 Features of the VRV PLUS Series 190 1 1 Improved Piping System 190 1 2 Improved Piping System 193 1 3 Dramatic...

Page 5: ...ation PLUS Series 271 1 Test Operation 272 1 1 Procedure and Outline 272 1 2 Operation When Power is Turned On 274 1 3 Outdoor Unit PC Board Ass y 275 1 4 Switch Settings According to Number of Outdoo...

Page 6: ...19 Negative Phase Open Phase 315 3 20 Malfunction of Transmission Between Indoor Units 316 3 21 Malfunction of Transmission Between Outdoor Units 317 3 22 Excessive Number of Indoor Units 318 3 23 Ref...

Page 7: ...eristics 364 3 1 Thermistor Resistance Temperature Characteristics 364 3 2 Pressure Sensor Voltage Output Detected Pressure Characteristics 366 4 Method of Replacing The Inverter s Power Transistors a...

Page 8: ...SiE 05C viii Table of Contents SI 05C BOOK Page viii Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 9: ...ent for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipment to conduct the repair or inspecting the...

Page 10: ...heat generation or fire When relocating the equipment make sure that the new installation site has sufficient strength to withstand the weight of the equipment If the installation site does not have...

Page 11: ...prevent children from swallowing it If a child swallows the coin battery see a doctor immediately Warning Caution Installation of a leakage breaker is necessary in some cases depending on the conditio...

Page 12: ...e sure to check the drainage of the indoor unit after the repair Faulty drainage can cause the water to enter the room and wet the furniture and floor Caution Icon Type of Information Description Note...

Page 13: ...you can provide fast and reliable after sales service Although the contents of the manual may be insufficient in some areas we hope that you will use it to the best of your ability The service manual...

Page 14: ...Introduction SiE 05C xiv SI 05C BOOK Page xiv Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 15: ...n 2 1 1 NOMENCLATURE 2 1 2 Indoor Outdoor Unit Combinations 4 2 Outline of System 5 2 1 Easily Recognizable Features of the K Series 5 2 2 Changes in K Series Functions Parts 6 2 3 Compatibility of Ol...

Page 16: ...ies Introduction SiE 05C 2 General Information Inverter K Series 1 Series Introduction 1 1 NOMENCLATURE 1 1 1 Indoor Unit SI 05C BOOK Page 2 Monday November 6 2000 4 13 PM http splitoff ru tehn doc ht...

Page 17: ...Unit for heat pump Doesn t include straight cooling VRV System Inverter Series Capacity Indication 5 5 H P 8 8 H P 10 10 H P Model change symbol Indicates minor design category A B C H For other marke...

Page 18: ...RV System Inverter VRV System Inverter K Series outdoor unit model RSXY5K RSXY8K RSXY10K Total connectable indoor units Max 8 units Max 13 Max 16 RV System Inverter EXC Series outdoor unit model RSX5K...

Page 19: ...Information Inverter K Series 5 2 Outline of System 2 1 Easily Recognizable Features of the K Series 2 1 1 VRV System Inverter K Series System Outline Part1 fm Page 5 Wednesday January 31 2001 8 48 A...

Page 20: ...ers long K Series Same terminals used for input and output No polarity 3 wiring methods can be used serial bus and star wiring Up to 16 branches can be used Cannot be branched again once branched Syst...

Page 21: ...g between outdoor units and setting Simultaneous cool heat selection and low noise operation require a separate adaptor for outside control of outdoor units Transmission can be conducted between a max...

Page 22: ...Swing Louver The wall mounted type is equipped with a swing louver The ceiling mounted cassette type can be set to prevent the ceiling from being soiled Able to Use Wireless Remote Controllers The mu...

Page 23: ...mbinations Notes 1 Old and new indoor units can be used together 2 An Mix Matching Adapter for K Indoor Unit DTA106A61 62 is required for one refrigerant system Can be connected x Cannot be connected...

Page 24: ...Outline of System SiE 05C 10 General Information Inverter K Series SI 05C BOOK Page 10 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 25: ...8 Heating Pump Down Residual Operation 33 1 9 Step Down Safety Control Standby Forced Thermostat OFF Stop Due to Malfunction 35 1 10 Control During Low Outdoor Air Temperature Cooling 37 1 11 Low Noi...

Page 26: ...Unit Refrigerant System Diagram RSX5K Series Products produced before July 99 and included RSX5KY1C model produced before Dec 99 Note 1 These check valves are not fitted for RSX5KY1C model SI 05C BOO...

Page 27: ...der to reduce load when the compressor starts D Outdoor unit electronic expansion valve Y1E Expansion valve is kept open E Solenoid valve injection Y3S Controls injection in order to prevent overheati...

Page 28: ...SXY5KY1C model Note 1 These check valves are not fitted for RSXY5KY1C model 2 These check valves are not fitted for products produced after Aug 99 and RSXY5KY1C model produced after Jan 2000 SI 05C BO...

Page 29: ...lectronic expansion valve Y1E Expansion valve when heating Senses compressor suction pipe and low pressure equivalent saturated temperature and carries out superheat degree control E Solenoid valve in...

Page 30: ...Functions Inverter K Series RSX5K Series Products produced after August 99 RSX5KY1C model produced after Jan 2000 DU229 622A SENPL SENPH SI 05C BOOK Page 16 Monday November 6 2000 4 13 PM http splito...

Page 31: ...ances high low pressure when off in order to reduce load when the compressor starts E Solenoid valve injection Y3S Controls injection in order to prevent overheating F Heat exchange pipe Subcools so t...

Page 32: ...X8K 10K Series Products produced before July 99 and Included RSX8K 10KY1C models produced before Dec 99 Note 1 These check valves are not fitted for RSX8K 10KY1C models SI 05C BOOK Page 18 Monday Nove...

Page 33: ...rom the compressor The collected oil is constantly recycled to the compressor via capillary tube E Solenoid valve hot gas bypass Y2S Valve is opened by low pressure safety control when low pressure dr...

Page 34: ...Y8 10K Series Products produced before July 99 and Included RSXY8K 10KY1C models produced before Dec 99 Note 1 These check valves are not fitted for RSXY8K 10KY1C models SI 05C BOOK Page 20 Monday Nov...

Page 35: ...the compressor via capillary tube E Solenoid valve hot gas bypass Y2S Valve is opened by low pressure safety control when low pressure drops F Outdoor unit electronic expansion valve Y1E Expansion va...

Page 36: ...ns Inverter K Series RSX8 10K Series Products produced after August 99 RSX8K 10KY1C models produced after Jan 2000 SENPL INV STD SENPH DU232 607A SI 05C BOOK Page 22 Monday November 6 2000 4 13 PM htt...

Page 37: ...m the compressor The collected oil is constantly recycled to the compressor via capillary tube E Solenoid valve hot gas bypass Y2S Valve is opened by low pressure safety control when low pressure drop...

Page 38: ...ns Inverter K Series RSXY8K 10K Series Products produced after August 99 RSXY8K 10KY1C models produced after Jan 2000 4D014597 SENPL INV STD SENPH SI 05C BOOK Page 24 Monday November 6 2000 4 13 PM ht...

Page 39: ...lenoid valve hot gas bypass Y2S Valve is opened by low pressure safety control when low pressure drops Balances high low pressure when off in order to reduce load when the compressor starts F Outdoor...

Page 40: ...tions SiE 05C 26 Functions Inverter K Series 1 2 Function of Thermistors and Pressure Sensors 1 2 1 Outdoor Unit RSXY8 10K SI 05C BOOK Page 26 Monday November 6 2000 4 13 PM http splitoff ru tehn doc...

Page 41: ...20SP 688 6 OFF 27 5 0 1 0kg cm ON 20 0 1 0 1 0kg cm S1HP Pressure switch for high pressure safety 20SP 688 6 OFF 27 5 0 1 0kg cm2 ON 20 0 1 0 1 0kg cm S2HP Pressure switch for high pressure safety 20S...

Page 42: ...ully close the indoor unit s electronic expansion valve for 5 minutes 10 minutes for 8 and 10HP 1 4 2 Soft Start The following control is carried out to protect the compressor and inverter 1 Operates...

Page 43: ...from dropping too low in the following cases When after being power ON the accumulated running time of the compressor does not exceed one hour When the compressor has been stopped for more than 24 ho...

Page 44: ...erence in pressure inside the dome due to drift and then reverts to normal operation If oil pressure equalization is not achieved during 5 minutes by stopping or step down control oil pressure equaliz...

Page 45: ...or high pressure 16kg cm 1 57MPa Step 2 Step 3 High pressure 7 5 kg cm 0 74MPa Step 3 Step 2 High pressure 15 kg cm 1 47MPa Step 2 Step 1 High pressure 20 kg cm 1 96MPa When heating only On when low p...

Page 46: ...set is position M Defrost is carried out when the coil temperature rises to 12 5 C or higher and is completed after defrosting for 10 minutes After defrosting indoor units carry out hot start operati...

Page 47: ...on is not carried out if the total of 1 2 3 is 10 minutes or more 3 When outdoor temperature R1T 5 C and a stop command is received from the thermostat sensor etc residual operation is carried out for...

Page 48: ...not carried out even if a stop command comes Forced thermostat OFF occurs if defrost or oil return signal comes during residual operation Outdoor air R1T Compressor Electronic expansion valve Pressure...

Page 49: ...76Hz Injection valve ON Lp 0 8kg cm 0 078MPa 54 Hz OFF 54Hz as lower limit Forced OFF by thermostat Up to 2 times in 30 minutes E4 stop due to malfunction Hot gas bypass valve ON VF002 Td 135 C Td 10...

Page 50: ...than 10 C the inverter standard compressor are controlled at 76 Hz or less OFF for 3 minutes Control According to Outdoor Temperature If the outdoor temperature exceeds 27 C when heating forced therm...

Page 51: ...oling operation Step 1 Fully open L 76 Step 2 Fully open OFF 48 Operating status Electronic expansion valve Fan Frequency Hz M1F M2F 8K 10K Normal operation Fully open H ON Changes according to operat...

Page 52: ...n or High pressure 15 8 kg cm 1 548 MPa or Outdoor air temperature 25 C or Radiator fin temperature 80 C Condition satisfied Conditions satisfied VF007 1 Normal operation Step 2 Cooling with compresso...

Page 53: ...essure 19 kg cm 1 86 MPa Low noise control reduces capacity by limiting the fan and compressor The load when heating is particularly large at night when the outdoor temperature is low and could result...

Page 54: ...rmostat OFF An optional external control adaptor of outdoor units is required for demand control For method of connection see demand operation in the test operation section Control is carried out by l...

Page 55: ...compressor is controlled in 21 stages by microcomputer 20 Stages for products produced after Aug 99 Frequency 30Hz 34Hz 38Hz 42Hz 48Hz 54Hz 60Hz 68Hz 76Hz 86Hz 96Hz 106Hz 116Hz Min output Max output...

Page 56: ...z OFF 34Hz OFF 38Hz OFF 42Hz OFF 48Hz OFF 54Hz OFF 60Hz OFF 68Hz OFF 76Hz OFF 86Hz OFF 96Hz OFF 106Hz OFF Commercial power supply compressor full load Frequency 38Hz ON 48Hz ON 60Hz ON 76Hz ON 86Hz ON...

Page 57: ...g and indoor load The range is 10 C target Te 5 5 C Piping length is determined automatically during oil return operation Target Tc becomes 3 C higher when indoor load is large Target Tc is controlled...

Page 58: ...or 30 min VF008 While compressor is running and 4 way valve ON heating cycle and Evaporator outlet superheat temperature 20 C difference and Outdoor unit electronic expansion valve 2000 pulses complet...

Page 59: ...ON 1 The objective of residual operation is to completely drain any moisture adhering to the fin of the indoor unit heat exchanger when the thermostat goes off during cooling operation 2 One cycle con...

Page 60: ...conds stop 5 minutes operation cycle ends operation continues until the switch is reset 1 16 4 When the Float Switch is Tripped and AF is Displayed on the Remote Controller Note If the float switch is...

Page 61: ...roved by the oil temperature sensor For products produced after Aug 99 The unit controls upper limit frequency of the compressor and is designed to prevent oil from being diluted while defrosting by m...

Page 62: ...0 P1 P2 P4 P3 P0 P1 P2 P4 P3 P0 P0 P1 P2 P4 P4 P2 P1 P0 P4 P4 P3 P2 P1 P0 P3 Existing position Draft prevention position Standard Setting position Ceiling soiling prevention position Draft prevention...

Page 63: ...preset temperature in the figure above is 24 C and the suction temperature has changed from 18 C to 30 C A F This example also assumes there are several other air conditioners the VRV system is off an...

Page 64: ...gher than the preset temperature Ex When heating Assuming the preset temperature in the figure above is 24 C and the suction temperature has changed from 18 C to 28 C A F This example also assumes the...

Page 65: ...n accordance with the following conditions and is also set in accordance with the conditions given below Conditions for starting freeze prevention Temperature is 1 C or less for total of 40 min or tem...

Page 66: ...Functions SiE 05C 52 Functions Inverter K Series SI 05C BOOK Page 52 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 67: ...Remote Controllers Group Remote 81 1 12 Indoor Field Setting 83 1 13 Centralized Control Group No Setting 85 1 14 Setting of Master Remote Controller 87 1 15 Remote Controller Self Diagnosis Function...

Page 68: ...supply to be set automatically Outdoor unit HWL lamp On Test lamp H2P Flicker Can be set while in operation Indoor unit If the ON OFF button is pushed during the aforementioned operation the operation...

Page 69: ...SiE 05C Test Operation Test Operation Inverter K Series 55 1 2 Outdoor Unit PC Board Ass y RSXY8K 10K SI 05C BOOK Page 55 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 70: ...o start wiring check Reset button Push and hold for 5 sec if the indoor unit s PC board has been replaced or there has been a change in the combination of indoor and outdoor units such as indoor unit...

Page 71: ...nd return to setting mode 1 You don t have to perform power supply reset after changing settings in setting mode 1 including SS1 cool heat selection switch on the outdoor unit PC board and setting mod...

Page 72: ...heat selection ON low noise OFF sequential start MODE TEST L N O P SEQ IND MASTER SLAVE START H1P H2P H3P H4P H5P H6P H7P SET MODE TEST L N O P SEQ IND MASTER SLAVE START H1P H2P H3P H4P H5P H6P H7P C...

Page 73: ...heat group address Low noise demand address Forced fan switch Indoor unit forced operation Frequency fix Te setting Tc setting Defrost setting Not used Description Emergency operation when malfunctio...

Page 74: ...ration 5 S Frequency fix Normal operation Fixes the frequency of the inverter compressor 5HP 68Hz 8 10HP 86Hz ON Frequency fix 6 S Address 0 Binary number 1 6 digits 2 31 Address for cool heat group o...

Page 75: ...temperature setting for defrost Quick defrost Normal factory set Slow defrost EMG emergency operation when malfunction occurs ON OF Push the SET button and match with the LEDs No 1 15 push the RETURN...

Page 76: ...umber of connected zone units excluding outdoor and BS units 0 63 units Lower 6 digits No 8 Number of outdoor units 0 63 units Lower 6 digits No 9 Number of BS units 0 128 units Lower 4 digits upper N...

Page 77: ...ll capacity as the third unit in the sequence Method of Sequential Start 1 Power supply wiring Must be wired as a group to the power supply 2 Wiring Connect transmission wiring to terminals F1 and F2...

Page 78: ...D remains off 3 Function switch SS1 Factory set BOTH Sets whether the address setting switch will set cool heat address demand low noise address or both 4 Cool heat central remote controller selection...

Page 79: ...heat mode by indoor unit remote controller Switch Settings on the Adaptor PCB SS1 SS2 DS1 DS2 BOTH C H DE FUNCTION BOTH BOTH C H DE FUNCTION C H OR VL021 CENTRAL C H SELECTOR OFF ON OFF VL022 DS2 DS1...

Page 80: ...H SELECT MASTER Setting mode 2 Cool heat group address 0 Combines DS1 and DS2 of PC board adaptor Group slave unit SS1 IN D UNIT or OUT D UNIT Setting mode 1 C H SELECT SLAVE Setting mode 2 Cool heat...

Page 81: ...indoor unit remote controller 4 Setting of cool heat by outdoor unit system group in accordance with group master outdoor unit by cool heat selector Each of these setting methods is explained in detai...

Page 82: ...utdoor Unit System by Cool Heat Selector Doesn t matter whether or not there is outdoor outdoor unit wiring Set SS1 of the outdoor unit PC board to OUT D UNIT In setting mode 1 set cool heat selection...

Page 83: ...oor unit you want to give cool heat selection permission to as the group master and set the other outdoor units as group slave units Set SS1 of the External control adaptor for outdoor unit to BOTH fa...

Page 84: ...master No 0 Outdoor unit group slave No 0 Outdoor unit group slave No 0 Cool heat group address DS2 DS1 Adaptor PCB No 1 Outdoor unit group master No 1 Outdoor unit group slave No 1 Cool heat group ad...

Page 85: ...ation Test Operation Inverter K Series 71 Setting Method 1 6 3 and 1 6 4 address setting method combine lower 5 digits as binary number SI 05C BOOK Page 71 Monday November 6 2000 4 13 PM http splitoff...

Page 86: ...e adaptor in each zone Outdoor unit address setting Setting mode 2 see page 59 External control adaptor for outdoor unit address setting Decide and set demand address 0 31 for each demand and low nois...

Page 87: ...nd down to approx 40 Short circuit between Demand 3 and C Forced OFF by thermostat L N O jumper Carries out low noise operation Input Signal Input current by constant contact a is about 10 mA per cont...

Page 88: ...P lights and goes off when finished If TEST H2P flickers wiring check operation failure push and hold the RESET button BS5 for 5 seconds and then repeat the procedure from the beginning 3 About 1 minu...

Page 89: ...you check the function status of the microcomputer Normal Flicker Malfunction On or off 2 Transmission wiring terminal Terminal for remote controller wiring indoor outdoor unit transmission wiring cen...

Page 90: ...d with HRV total heat exchanger units Applies only to B Series and multifunctional types Display of malfunction is also available for air cleaner units Operation can be individually programmed to star...

Page 91: ...appendices Remote controller wiring can be extended up to 500 meters and you can easily make a central control setup in one place with indoor unit remote controllers set up in various places around t...

Page 92: ...hen under centralized control 6 Timer ON OFF button 18 ON OFF button Push to turn the timer on or off One push starts the system and a second push stops the system again 7 Inspection test operation bu...

Page 93: ...h to turn the timer on or off 4 Display air flow flap 13 Programming time button Displays fixed or swing for air direction Push to set programming time 5 Inspection test operation display 14 Time mode...

Page 94: ...setting The air flow direction is set by adjusting with the air flow direction adjustment button while viewing setting position in the liquid crystal display The air flow direction is set by adjusting...

Page 95: ...the remote controllers front panels and set the MASTER SLAVE switch on the remote controller s built in PC board to MASTER for the master remote controller and SLAVE for the slave remote controller F...

Page 96: ...lection Switch input by remote controller after turning on the power supply Set field setting mode with the remote controller When you enter the field setting mode select mode No 12 and set the first...

Page 97: ...ed push the time mode button and select the indoor unit No to be set Note This operation is not required when setting as a group 4 Push the button and select the first code No 5 Push the button and se...

Page 98: ...lay time to clean air filter calculation Set when filter sign is not to be displayed Display No display 12 22 0 Optional accessories output selection field selection of output for adaptor for wiring I...

Page 99: ...t the group No for each group with the button The group No increases in the manner of 1 00 1 01 1 15 2 00 4 15 However the unified ON OFF controller displays only the group No within the range selecte...

Page 100: ...ters the field set mode 2 Set mode No 00 with button 3 Set the group No for each group with button advance backward 4 Enter the selected group numbers by pushing button 5 Push button and return to the...

Page 101: ...ction 1 Set the outdoor unit s cool heat selector Filed setting mode1 to inside 2 Continue pushing OPERATION MODE SELECTOR for about 4 seconds The display of CHANGEOVER UNDER CONTROL on all remote con...

Page 102: ...CONTROL 1 to COOL HEAT l switch to the operation mode set by the master remote controller l However they can switch to FAN operation and from COOL to If you set a Master remote controller Remote contr...

Page 103: ...g Blinking C5 Indoor unit Malfunction of thermistor R3T for gas pipes loose connection disconnection short circuit failure Blinking Blinking Blinking C9 Indoor unit Malfunction of thermistor R1T for a...

Page 104: ...phase open phase Blinking Blinking Blinking U2 Power supply insufficient or instantaneous failure Blinking Blinking Blinking U4 Malfunction of transmission between indoor unit and outdoor unit BS uni...

Page 105: ...ice and then locate the upper code 5 Push the operation mode selector button and the lower digit of the malfunction code blinks 6 Push the time mode button until signal reception beeps continuously an...

Page 106: ...XYC FXYK FXYF FXYH FXYS FXYL FXYM Type VRV System Inverter K Series Other models VRV System Display A A 1 Outdoor model code Model RSXY Unit Malfunction code Inspection Normal display No display 0 L 0...

Page 107: ...elect the unit No For group control only Select the indoor unit No to be set with the time mode button 3 Make the settings required for each mode Modes 41 44 45 For details refer to the table below 4...

Page 108: ...it No with the button you can turn the fan of each indoor unit on forced ON individually 4 4 4 44 4 4 4 Individual setting Set the fan speed and air flow direction by each unit Select the unit No with...

Page 109: ...emote controller Model No DCS302A51 DCS302B61 Appearance Outside dimensions and operation functions are the same No of units that can be connected within one control wiring system 1 Up to 2 Unified ON...

Page 110: ...tem Group control by remote controller is required if more than 64 units are connected with the same system Only 1 central remote controller can be connected per system Up to 4 unified ON OFF controll...

Page 111: ...that can be connected within the system When double remote controllers are connected the same indoor unit cannot be registered for more than one central remote controller Up to 2 central remote contr...

Page 112: ...sed in combination with other D BACS equipment and allows input from outside of forced OFF etc Enables individual on off and monitoring of total heat exchanger units HRV model B Series and multifuncti...

Page 113: ...ion of 1 or more groups Zone control lets you make settings for several groups simultaneously in order to facilitate the task of setting By setting once everything in the zone becomes set to the same...

Page 114: ...ed individual etc in code If there is an indoor unit stopped due to malfunction the display indicates that unit s unit No 5 Group No in operation 14 Unified stop button Each square displays the state...

Page 115: ...12 Timer ON button Selects zone or group display Defines control mode and timer No 5 Advance backward button 13 Control mode button Sets zone with several groups Selects the control mode 6 ON OFF but...

Page 116: ...g 3 branches 3 Star wiring can be branched in max 16 locations Example showing 3 branches Notes 1 Cannot be branched again after being branched once 2 Use a junction terminal block if branching 3 or m...

Page 117: ...through 19 ON OFF control impossible by remote controller Used when you want to turn on off by central remote controller only Cannot be turned on off by remote controller OFF control only possible by...

Page 118: ...tion OFF Temperature control Operation mode setting Unified operation individual operation by central remote controller or operation controlled by timer Unified OFF individual stop by central remote c...

Page 119: ...cale and use Features compact size casing with thickness of only 16 mm Uses JIS recessed box for 2 Wiring can be extended up to 1 km For the wiring method bus type and star type wiring crossover wirin...

Page 120: ...by either 1 or 2 remote controllers 1 20 2 Wiring for Transmission Wiring Outline Wiring specifications Connection Example of Wiring for Transmission 1 series wiring 2 bus type wiring and 3 star type...

Page 121: ...atter if F1 and F2 are inverted 1 Forced OFF input T1 T2 All connected indoor units go off and do not run while forced OFF input for no voltage contact micro current is closed Use a contact that can g...

Page 122: ...roller as desired Equipped with a power failure compensation function effective for up to 48 hours Features compact size casing with thickness of only 16 mm Uses JIS recessed box for 2 Wiring can be e...

Page 123: ...attached cable and crimp style terminals 2 If using in combination with other optional controllers for centralized control Wiring for transmission 0 75 1 25 mm sheathed vinyl cord or cable double core...

Page 124: ...ays the time when the system is programmed to go off 3 Display of holiday 9 Unified stop button Displays day designated as a holiday inside a circle The system is not programmed to turn on for days de...

Page 125: ...to adjust the present time or programmed time 3 Holiday setting button 8 Programming start button Sets holiday Push to set or check No of programmed time After completion push again 4 Button for copy...

Page 126: ...nce with the number of indoor units A single line network can contain up to 16 groups of four units each Central remote controller plus unified ON OFF controller Combines the functionality of a centra...

Page 127: ...ller one schedule timer and from one to eight unified ON OFF controllers The maximum number of units for a single system is 128 for both model A and B Central remote controller DCS302A51 Unified ON OF...

Page 128: ...peration Inverter K Series 1 22 3 Electric Wiring Combination of one central remote controller one schedule timer and three unified ON OFF controllers SI 05C BOOK Page 114 Monday November 6 2000 4 13...

Page 129: ...ence for control of central remote controller and indoor unit remote controllers If used together with a central remote controller however the central remote controller s control mode has priority 3 S...

Page 130: ...Test Operation SiE 05C 116 Test Operation Inverter K Series SI 05C BOOK Page 116 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 131: ...afety Device 139 3 14 Outdoor Unit PC Board Defect 139 3 15 Outdoor Unit Actuation of High Pressure Switch 140 3 16 Outdoor Unit Actuation of Low Pressure Switch 141 3 17 Outdoor Unit Malfunction of M...

Page 132: ...rature Rise Sensor 167 5 8 Outdoor Unit Inverter Over Ripple Protection 168 6 Troubleshooting OP Central Remote Controller 169 6 1 Malfunction of Transmission between Central Remote Controller and Ind...

Page 133: ...OFF Electronic expansion valve Y1E Closed Optional auxiliary electric heater 52H OFF Depress reset Operation ON OFF switch Operation display lamp ON Air flow rate setting display ON Air flow direction...

Page 134: ...peration Frost prevention operation in progress Test run in progress Thermostat status Option Drain up kit Y1E ON OFF Option Drain up kit M1P OFF after 5 minutes residual operation Electronic expansio...

Page 135: ...Swing flap Air flow direction setting Swing flap Fan MF Operating at set air flow rate Electronic expansion valve Y1E closed Drain up kit M1P OFF Auxiliary electric heater 52H OFF Humidifier Hu OFF E...

Page 136: ...1F Operating at set air flow volume Fan M1F L operation Fan M1F OFF Electronic expansion valve Y1E capacity contorol Electronic expansion valve Y1E capacity contorol Electronic expansion valve Y1E ope...

Page 137: ...hermostat status 15 Low discharge air temperature protection Protection is effected when the preset temperature is 24 C or lower and the opening of the electronic expansion valve is slight SI 05C BOOK...

Page 138: ...quency to inverter INV 0 Hz Standard compressor magnetic contactor K2M Closed Electronic expansion valve Y1E OFF Solenoid valve hot gas Y2S OFF Solenoid valve injection Y3S Y4S OFF Solenoid valve pres...

Page 139: ...F H ON 30 116 Hz OFF ON OFF by saturation temperature corresponding to suction pressure 22 ON 30 116 Hz by PI and protective control ON OFF by PI and protective control Open 38 Hz ON 42 Hz OFF ON ON C...

Page 140: ...n Start control in progress Defrosting operation in progress Oil equalization in progress Compressor protection operation in progress VF028 K1M INV K2M Y1E Y2S Y3S Y4S Y1R M1F M2F ON OFF by discharge...

Page 141: ...to H ON 23 Compressor protection 1 Protection control is triggered when secondary inverter current exceeds set current 2 Protection control is triggered by discharge temperature 3 Protection control i...

Page 142: ...Y1E 142 F3 Outdoor unit Abnormal discharge pipe temperature 143 H9 Outdoor unit Malfunction of thermistor for outdoor air R1T 144 J3 Outdoor unit Malfunction of discharge pipe thermistor R3T 144 J5 Ou...

Page 143: ...sensor 168 Malfunction code Optional controllers for centralized control Malfunction contents Page UE Central remote controller Schedule timer Malfunction of transmission between central remote contro...

Page 144: ...board Troubleshooting VF029 Indoor unit PC board replacement Actuation of external protection device Change the second code No to 01 or 02 External protection device is connected to terminals T1 and T...

Page 145: ...131 3 2 Indoor Unit PC Board Defect Remote Controller Display A A A A1 1 1 1 Supposed Causes Defect of indoor unit PC board Troubleshooting Replace the indoor unit PC board SI 05C BOOK Page 131 Monda...

Page 146: ...tor or float switch and turn on again YES YES YES YES Defect of indoor unit PC board Loose connection of connector NO NO NO YES YES NO NO YES NO YES NO NO The float switch is connected to X18A of the...

Page 147: ...Troubleshooting Connect the wiring and turn on again Fix the wiring and turn on again YES NO NO NO YES NO Replace the indoor unit PC board Replace the fan motor Is the wiring from the fan motor secur...

Page 148: ...nit PC board NO NO YES NO YES NO YES YES NO Indoor unit is a model equipped with a swing flap function The swing motor works when the power supply is turned off and then back on When the air flow dire...

Page 149: ...ce the moving part of the electronic expansion valve YES YES NO NO Replace the connecting cable If you turn the power supply off and turn on again and it still does not help replace the indoor unit PC...

Page 150: ...fect of indoor unit PC board Troubleshooting Defect of indoor unit PC board Modify the drain piping YES YES Check if the humidifier unit is leaking NO NO Field drain piping has a defect such as upward...

Page 151: ...ooting VF036 Replace the indoor unit PC board Connect the thermistor and turn on again NO NO Replace the thermistor R2T YES YES Connector is connected to X12A of the indoor unit PC board Resistance is...

Page 152: ...posed Causes Defect of remote controller thermistor Defect of remote controller PC board Troubleshooting Replace the indoor unit PC board Connect the thermistor and turn on again NO NO Replace the the...

Page 153: ...E E E1 1 1 1 Supposed Causes Defect of outdoor unit PC board EC1 Troubleshooting Replace outdoor unit PC board A1P VF040 Connector or terminal is connected to X8A X9A of the outdoor unit PC board A1P...

Page 154: ...ch HPS The outdoor unit PC board s connector is disconnected Is the outdoor unit heat exchanger dirty Defect of outdoor fan Is the refrigerant over charged Operation is normal when turned on again by...

Page 155: ...urement point 2 Refer to pressure sensor pressure voltage characteristics table on P366 VF042 Low pressure at stop due to malfunction is 0 0 kg cm2 Measure the voltage VL of X21A pin No 2 3 of outdoor...

Page 156: ...tor pins Normal Continuity Approx 300 Continuity Approx 150 x No continuity VF043 Electronic expansion valve is connected to X12A of outdoor unit PC board A1P Normal when coil check 1 of the moving pa...

Page 157: ...ture is 135 C or higher 8 10K Is there a wrong connection of the injection solenoid valves Y3S and Y4S 8 10K Is there a wrong connection of the discharge pipe thermistor R3 1T inverter side X17A R3 2T...

Page 158: ...A1P Troubleshooting The alarm indicator is displayed when the fan is being used also VF045 Resistance is normal when measured after disconnecting the thermistor R1T from the outdoor unit PC board 3 5k...

Page 159: ...A1P Troubleshooting The alarm indicator is displayed when the fan is being used also VF047 Resistance is normal when measured after disconnecting the thermistor R4T from the indoor unit PC board 3 5k...

Page 160: ...rement point 2 Refer to pressure sensor pressure voltage characteristics table on P366 VF049 The relationship between the 1 VH and high pressure is normal see 2 when voltage is measured between X22A p...

Page 161: ...ent point 2 Refer to pressure sensor pressure voltage characteristics table on P366 VF050 The relationship between the 1 VH and low pressure is normal see 2 when voltage is measured between X21A pins...

Page 162: ...shooting VF051 The outdoor unit type is 8 K or 10K Is the connector is connected to X15A of the outdoor PC board A1P Resistance is normal when measured with thermistor R5T disconnected from the outdoo...

Page 163: ...ction pipe thermistor R4T and coil thermistor R2T disconnected from the outdoor unit PC board Out of gas or refrigerant system is clogged Requires check of refrigerant system Replace the thermistor Re...

Page 164: ...ooting VF053 Operation is normal if one place of power supply line phase is replaced Fix the open phase Requires inspection of field power supply section Negative phase Disposal of the problem is comp...

Page 165: ...Fix the indoor outdoor unit transmission wiring YES NO NO YES Has the indoor or outdoor unit PC board been replaced or has the indoor outdoor or outdoor outdoor unit transmission wiring been modified...

Page 166: ...one remote controller to SLAVE turn the power supply off once and then back on There is possibility of malfunction caused by noise Check the surrounding area and turn on again NO NO Using 2 remote con...

Page 167: ...Cool heat selection is unified C H SELECT is set to MASTER NO Is the indoor outdoor unit transmission wiring normal C H SELECT is set to SLAVE YES NO Check and see if the following items are normal N...

Page 168: ...emote controller PC board Troubleshooting VF057 SS1 of both remote controllers is set to SUB Set SS1 to MAIN the power supply off once and then back on Set one remote controller to MAIN the power supp...

Page 169: ...he remote controllers of other units within the same refrigerant system Refer to failure diagnosis for U5 malfunction code Re diagnose by display after passage of 2 minutes or more NO NO Refer to fail...

Page 170: ...ntral remote controller Defect of indoor unit PC board Troubleshooting VF059 The total of indoor units displaying UA and indoor units connected to the same refrigerant system is 24 units or less Repla...

Page 171: ...n off for more than 12 hours or if it is not carried out after running all connected indoor units in the fan mode for at least an hour VF061 Is indoor outdoor and outdoor outdoor unit transmission wir...

Page 172: ...r the first time after installation or after an indoor or outdoor unit PC board has been replaced Is indoor outdoor and outdoor outdoor unit transmission wiring normal YES Normal NO Does a malfunction...

Page 173: ...intake port of the radiator fin clogged L5 Instantaneous over current Inspect the compressor L8 Electronic thermostat Inspection the compressor and refrigerant system L9 Stall prevention Inspection t...

Page 174: ...s attempted the prescribed number of times If the number of retry times is exceeded within 60 minutes malfunction is ascertained and the corresponding malfunction code is displayed on the indoor unit...

Page 175: ...d Defect of fin thermistor Troubleshooting VF063 Characteristic check of the radiator fin thermistor Refer to thermistor characteristics table Defect of power unit radiation Intake port is clogged Rad...

Page 176: ...check Inverter output voltage is not balanced Normal if within 5 V TAL 8 V Y1 YAL Note Must be measured when frequency is stable Replace the compressor Compressor inspection Inspect according to the...

Page 177: ...equency is stable Compressor overload Inspection of the compressor and refrigerant system is required Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and op...

Page 178: ...AL 8 V Y1 YAL Note Must be measured when frequency is stable Unsatisfactory pressure equalization Check refrigerant system Compressor inspection Inspect according to the diagnosis procedure for odd no...

Page 179: ...nit is disconnected YES Fix the disconnection and turn on again Connect transmission wiring and turn on again NO YES The microcomputer monitor green on the inverter unit is blinking Check the noise fi...

Page 180: ...M ON YES NO Is 220 240 V of power reaching the K1M coil Is 220 240 V at the connector of X1A Replace the inverter unit Replace the inverter unit YES NO YES Does the voltage between terminals P and N g...

Page 181: ...voltage record power supply voltage between 3 phases L1 L2 L2 L3 L3 L1 for about one continuous week Open phase Normalize field cause Power supply voltage imbalance Explanation for users Contact QC di...

Page 182: ...lay P P P P4 4 4 4 Supposed Causes Defect of radiator fin temperature sensor Defect of inverter unit Troubleshooting VF070 Replace the radiator fin thermistor Turn on again after letting 30 minutes or...

Page 183: ...ion wiring disconnected or wired incorrectly Is the transmission wiring with the master controller disconnected or wired incorrectly Is the master controller s connector for setting master controller...

Page 184: ...tly The PC board of one of the optional controllers for centralized control is defective Try turning on off using each optional controllers for centralized control and replace the PC board of the one...

Page 185: ...ct the schedule timer s individual combined connector and reset the power supply for all optional controllers for centralized control simultaneously Arrange so that the connector for setting master co...

Page 186: ...uses Address duplication of central remote controller Troubleshooting Are two or more central remote controllers connected Disconnect all central remote controllers except one and reset the power supp...

Page 187: ...on wiring disconnected or wired incorrectly Is the transmission wiring with the master controller disconnected or wired incorrectly Is the master controller s connector for setting master controller d...

Page 188: ...of one of the optional controllers for centralized control is defective Try turning on off using each optional controllers for centralized control and replace the PC board of the one that is unable t...

Page 189: ...or setting master control when the malfunction is cleared is defective and must be replaced Reset the power supply for all optional controllers for centralized control simultaneously Reset the power s...

Page 190: ...posed Causes Address duplication of optional controller for centralized control Troubleshooting VF078 Are two or more schedule timers connected Reset the power supply for the schedule timer Disconnect...

Page 191: ...oller disconnected or wired incorrectly Is the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit PC board Fix the wiring correctly...

Page 192: ...unified ON OFF controller s switch for setting each address and reset the power supply of the unified ON OFF controller Refer to failure diagnosis for central remote controller or schedule timer NO Y...

Page 193: ...onnector for setting master control is connected to one controller for centralized control and reset the power supply for all optional controllers for centralized control simultaneously Disconnect the...

Page 194: ...Is the switch for setting each address set correctly Is the transmission wiring disconnected or wired incorrectly Replace the PC board of the unified ON OFF controller Fix the wiring correctly Set by...

Page 195: ...g the PC board may differ Set after checking the indoor unit No 2 Central address Change setting with the remote controller 3 Capacity display A capacity setting adaptor must be installed for all mode...

Page 196: ...ts is connected to outdoor to outdoor transmission terminals Installation test operation Indoor unit 1 Normal Indoor unit 2 UF malfunction Other Indoor unit 1 Normal Indoor unit 2 U4 malfunction or no...

Page 197: ...nected to the Outdoor to Outdoor Unit Terminal Installation test operation Indoor unit 1 UF malfunction Indoor unit 2 Other Indoor unit 1 U4 malfunction or no malfunction display Indoor unit 2 SI 05C...

Page 198: ...Series All Indoor Units Connected to Indoor to Outdoor and Outdoor to Outdoor Unit Terminals Installation test operation Indoor unit 1 U4 malfunction Indoor unit 2 SI 05C BOOK Page 184 Monday Novembe...

Page 199: ...Unit After 12 minutes elapse 10 min after turning power on Indoor unit 1 Normal Indoor unit 2 U4 malfunction Push and hold RESET button for 5 sec Indoor unit 1 Normal Indoor unit 2 Normal SI 05C BOOK...

Page 200: ...oor transmission terminals Installation test operation Indoor unit 1 Normal Indoor unit 2 UF malfunction Indoor unit 3 Normal Indoor unit 4 Normal Other Indoor unit 1 Normal Indoor unit 2 U4 malfuncti...

Page 201: ...f outdoor unit 2 are connected The indoor to outdoor terminals of outdoor units 1 and 2 are connected Indoor unit 1 Normal Indoor unit 2 Normal Indoor unit 3 UH malfunction Indoor unit 4 Indoor unit 1...

Page 202: ...Appendix SiE 05C 188 Troubleshooting Inverter K Series SI 05C BOOK Page 188 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 203: ...Improved Piping System 193 1 3 Dramatic Reduction of Wiring Saves Time and Labor When Installing 194 2 System Outline 195 2 1 Heat Pump and Cooling Only System 195 2 2 Heat Recovery System 196 3 Indoo...

Page 204: ...system for the VRV PLUS Series The series is designed for use with both heat pump system and heat recovery system type outdoor units Reduction of piping not only aids users and designers but facilitat...

Page 205: ...RV PLUS Series General Information PLUS Series 191 Product Features Saves Labor and Space Offers 30 reduction of refrigerant piping work cost SI 05C BOOK Page 191 Monday November 6 2000 4 13 PM http s...

Page 206: ...ox 70 reduction of pipe shaft and space Combination of outdoor and function units enables selection that matches required capacity Single piping system reduces time and labor required for connection c...

Page 207: ...smission line double core with polarity Super Wiring System Transmission wiring between indoor and outdoor units plus central transmission line double core without polarity D III NET Advanced Function...

Page 208: ...d with transmission signals on the central transmission line The dramatic reduction in wiring realized by doing so reduces wiring cost facilitates connection and reduces the possibility of incorrect c...

Page 209: ...50 130 of outdoor unit total capacity No of Connectable Indoor Units RX Y 16K 20K Max 20 units RX Y 24K 30K Max 30 units Heat pump L unit BL K Inverter type outdoor unit RXY K Constant speed type outd...

Page 210: ...it Connection Capacity 50 130 of outdoor unit total capacity No of Connectable Indoor Units REY16 20K Max 20 units REY24 30K Max 30 units Refer to the SERVICE MANUAL Si 11 R unit BR K Inverter type ou...

Page 211: ...Y10K RNY 8 K x 2 RXY28K RXY10K RNY 8 K x 1 RNY10K x 1 RXY30K RXY10K RNY10K x 2 Model 1 Function unit Combination No of indoor unit to be connected Inverter Constant speed RX16K BC 2 K RX 8 K RN 8 K 20...

Page 212: ...Indoor Outdoor Unit Combinations SiE 05C 198 General Information PLUS Series SI 05C BOOK Page 198 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 213: ...ump Down Residual Operation For Heat Pump System 232 4 7 Compressor Oil Temperature Protection Control 233 4 8 Low Pressure Protection Control Step 234 4 9 High Pressure Control Step 236 4 10 Discharg...

Page 214: ...Refrigerant System Diagrams SiE 05C 200 Functions PLUS Series 1 Outdoor Unit Refrigerant System Diagrams 1 1 Function Unit BL2K SI 05C BOOK Page 200 Monday November 6 2000 4 13 PM http splitoff ru te...

Page 215: ...way solenoid valve that opens when energized and closes when not receiving power Construction is similar to 4 way valve and similarly does not operate unless there is differential pressure 3 5 kg cm C...

Page 216: ...Outdoor Unit Refrigerant System Diagrams SiE 05C 202 Functions PLUS Series BL3K SI 05C BOOK Page 202 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 217: ...ction is similar to 4 way valve and similarly does not operate unless there is differential pressure 3 5 kg cm D Solenoid valve for shutting system 3 equalized pressure gas pipe Y4S 2 way solenoid val...

Page 218: ...Outdoor Unit Refrigerant System Diagrams SiE 05C 204 Functions PLUS Series BC2K SI 05C BOOK Page 204 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 219: ...er Construction is similar to 4 way valve and similarly does not operate unless there is differential pressure 3 5 kg cm B Solenoid valve for system 1 devices Y5S Solenoid valve primarily for supplyin...

Page 220: ...Outdoor Unit Refrigerant System Diagrams SiE 05C 206 Functions PLUS Series BC3K SI 05C BOOK Page 206 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 221: ...olenoid valve for shutting the equalized pressure gas pipe of the third system when system 3 outdoor units are stopped during cooling The valve itself is the same as solenoid valve C C Solenoid valve...

Page 222: ...Outdoor Unit Refrigerant System Diagrams SiE 05C 208 Functions PLUS Series 1 2 Outdoor Unit RXY8K RXY10K 8 10HP SI 05C BOOK Page 208 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 223: ...alve for low pressure protection Y1S Provides hot gas bypass to prevent low pressure from dropping radically for excessive defrost of load reduction when the compressor starts F Solenoid valve for pre...

Page 224: ...Outdoor Unit Refrigerant System Diagrams SiE 05C 210 Functions PLUS Series RNY8K RNY10K 8 10HP SI 05C BOOK Page 210 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 225: ...sure from dropping radically for excessive defrost of load reduction when the compressor starts F Solenoid valve for pressure equalization Y4S Balances high and low pressure when stopped G Solenoid va...

Page 226: ...Outdoor Unit Refrigerant System Diagrams SiE 05C 212 Functions PLUS Series RX8K RX10K 8 10HP SI 05C BOOK Page 212 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 227: ...il separator Device which collected oil discharged from the compressor and returns it to the compressor via capillary tubes Also functions as reservoir for holding excess oil E Solenoid valve for pres...

Page 228: ...Outdoor Unit Refrigerant System Diagrams SiE 05C 214 Functions PLUS Series RN8K RN10K 8 10HP SI 05C BOOK Page 214 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 229: ...ns it to the compressor via capillary tubes Also functions as reservoir for holding excess oil E Solenoid valve for pressure equalization Y4S Balances high and low pressure when stopped F Solenoid val...

Page 230: ...Sensors SiE 05C 216 Functions PLUS Series 2 Function of Thermistors and Pressure Sensors 2 1 Function of Thermistors and Pressure Sensors RX Y 8K RX Y 10K SI 05C BOOK Page 216 Monday November 6 2000 4...

Page 231: ...d for Low outdoor temperature control too when cooling on both heat pump and cooling only models 3 R4T used for Pump down operation too on both heat pump and cooling only models 4 R5T used for Oil tem...

Page 232: ...used for Low outdoor temperature control too when cooling on both heat pump and cooling only models 3 R4T used for Pump down operation too on both heat pump and cooling only models 4 R5T used for Oil...

Page 233: ...T100BDTYH 2 2 JT160BDTYH 3 75 JT125BDTYH JT160BDTYH 2 5 3 75 JT160BDTYHJ T200BDTYH 3 75 4 0 J1HC J2HC Crank case heater 33W 33W Safety device R3 1T R3 2T Compressor safety thermostat Discharge pipe th...

Page 234: ...ng and heating INV Inverter STD Standard Herein after we indicate INV for inverter and STD for standard In Case of Cooling Only System INV outdoor unit Frequency at start 42Hz OFF Hot gas bypass ON Li...

Page 235: ...ssure H ON Outdoor EEV 2000PLS 2000PLS 2000PLS 2000PLS 2000PLS 2000PLS 2000PLS 0PLS 0PLS Hot gas bypass ON ON ON ON OFF OFF ON OFF OFF Hot gas bypass for equalizing pressure OFF OFF OFF OFF OFF OFF OF...

Page 236: ...nits closed Hot gas bypass On with LP 0 5k 30 Hz OFF maintained Hot gas bypass OFF after 30 sec Compressor P1 control EEV 0 PLS k kg cm2 VF104 Compressor frequency change during control Low pressure M...

Page 237: ...LS EEV for all outdoor units 0 PLS Hot gas bypass ON for all outdoor units Indoor unit hot start Soft start 1 minute elapses Liquid discharged from INV outdoor unit Starting preparation for STD outdoo...

Page 238: ...between high and low pressure After this control is completed the unit immediately enters soft control T is a constant determined by outdoor temperature and Te In Case of Cooling Only System Control c...

Page 239: ...ON OFF ON OFF Compressor EEV Outdoor unit fan Outdoor unit heat exchanger Solenoid valve for oil discharge Injection Hot gas INV outdoor unit STD outdoor unit 1 STD outdoor unit 2 Condenser Condenser...

Page 240: ...4 min elapses Step 2 Refrigerant is discharged from accumulator 106Hz ON H ON H ON H ON OFF ON OFF ON OFF ON OFF ON ON ON ON Compressor Outdoor unit fan Outdoor unit heat exchanger Solenoid valve for...

Page 241: ...Step 2 Defrost operation is executed Step 3 Refrigerant is discharged from accumulator 3 minutes 38Hz ON 2000pls 2000pls OFF OFF ON OFF ON OFF ON ON OFF Compressor EEV Outdoor unit fan Outdoor unit he...

Page 242: ...has elapsed since defrost completion OR At least 10 continuous minutes has elapsed since inverter outdoor unit started INV compressor oil temperature Te 10 C At least 3 minutes has elapsed since inver...

Page 243: ...compressor oil temperature Te 10 C At least 3 minutes has elapsed since inverter outdoor unit started At least A Time has elapsed by total operating time of standard outdoor unit 1 since completion o...

Page 244: ...least 3 continuous minutes has elapsed since INV outdoor unit started OR At least A Time has elapsed by total operating time of STD outdoor unit since completion of previous oil equalization operation...

Page 245: ...ON OFF OFF INV outdoor unit STD outdoor unit 1 STD outdoor unit 2 Outdoor unit fan Outdoor unit EEV Solenoid valve for oil discharge Hot gas bypass H ON 0 PLS OFF Low pressure protection control H ON...

Page 246: ...frost or oil return Pump down is started if a start command is received during residual operation INV compressor discharge temp 95 C when off Any one of these 1 4 1 Stopped no more than 10 minutes fro...

Page 247: ...ents INV outdoor unit No more than 30 min after start or no more than 20 min since completion of defrost or oil return INV compressor temp 15 C Time given on left has been exceeded or INV compressor t...

Page 248: ...on Forced OFF by thermostat Compressor upper limit frequency limited All hot gas bypass in same system ON No more than 3 min following completion of oil return defrost LP 2 5 All hot gas bypass ON Can...

Page 249: ...FF by thermostat Compressor upper limit frequency limited All hot gas bypass in same system ON No more than 3 min following completion of oil return defrost LP 2 5 Function unit s solenoid valve Y5 Y6...

Page 250: ...tdoor unit 1 or 2 is turned ON during defrost high pressure is reduced by turning the fan of the HPS ON outdoor unit to H ON and hot gas bypass ON Compressor 30 Hz OFF STD outdoor unit OFF Fan L OFF O...

Page 251: ...wing oil return and defrost completion Injection ON Cancel conditions 2 minutes elapse LP 3 0 Te 6 8 C Upper flow side comp discharge temp 90 C Injection ON LP 2 0 Te 15 1 C Upper flow side comp disch...

Page 252: ...3 minutes elapse following STEP 1 with LP 6 6k LP 7k or 3 minutes elapse following STEP 1 with LP 6 6k LP 2k or 10 minutes elapse following STEP 1 with LP 6k LP 2k or 10 minutes elapse following STEP...

Page 253: ...temp step 3 1 HP 16 0 k 38 1 C 2 Outdoor temp 25 0 C 3 Indoor unit On by thermostat capacity 140 5 HP 1 HP 10 0 k 2 Outdoor temp 20 0 C 3 Indoor unit On by thermostat capacity 140 HP 12 0 k for 3 minu...

Page 254: ...e Demand control input of the outdoor unit external control adaptor option you can save power with limit of compressor frequency Upper Limit of Compressor Frequency in Demand Control k kg cm Condition...

Page 255: ...Hz OFF OFF OFF 34Hz OFF 38Hz OFF 42Hz OFF 48Hz OFF 54Hz OFF 60Hz OFF 68Hz OFF 76Hz OFF 96Hz OFF 106Hz OFF 38Hz ON 48Hz ON 60Hz ON 76Hz ON 86Hz ON 96Hz ON 106Hz ON 38Hz ON ON OFF 48Hz ON 60Hz ON 76Hz O...

Page 256: ...tdoor unit 2 30Hz OFF OFF OFF OFF OFF 34Hz OFF 38Hz OFF 42Hz OFF 48Hz OFF 54Hz OFF 60Hz OFF 68Hz OFF 76Hz OFF 86Hz OFF 96Hz OFF 106Hz OFF 38Hz ON 48Hz ON 60Hz ON 76Hz ON 86Hz ON 96Hz ON 106Hz ON 38Hz...

Page 257: ...for the reason given above malfunction detection is once again carried out and the system stops due to malfunction if a malfunction still exists All indoor units in the system stop Operation of faulty...

Page 258: ...Outdoor unit EEV Hot gas bypass INV outdoor unit STD outdoor unit 1 STD outdoor unit 2 5 minutes elapse Liquid pipe temp of STD outdoor unit 2 58 C Liquid pipe temp STD outdoor unit 1 60 C Indoor uni...

Page 259: ...p of STD outdoor unit 2 below 58 C Liquid pipe temp STD outdoor unit 1 60 C Indoor units execute superheating control in this mode 0 Hz OFF H ON Y5 ON ON OFF H ON Y6 OFF ON OFF H ON Y7 OFF Comp ressor...

Page 260: ...t EEV Hot gas bypass INV outdoor unit STD outdoor unit 1 STD outdoor unit 2 0 Hz OFF H ON 0 PLS OFF ON OFF H ON 2000 PLS ON ON OFF H ON 2000 PLS ON Comp ressor Outdoor unit fan Outdoor unit EEV Hot ga...

Page 261: ...f cooling only system Other outdoor units operate by normal operation Difference with Backup Operation Backup operation is conducted for a maximum of 3 hours but there is no time limit with this mode...

Page 262: ...lves of the STD outdoor unit to be pumped down The indoor unit fan is fixed at L tap To pump down refrigerant of STD outdoor unit 1 Normal cooling operation is executed by INV outdoor unit and STD out...

Page 263: ...ly Outdoor unit operation is same as STD outdoor unit 1 Operates No 1 compressors only of STD outdoor unit 1 and 2 Step 1 Comp ressor Outdoor unit fan Function unit s solenoid INV outdoor unit STD out...

Page 264: ...Outline of Control SiE 05C 250 Functions PLUS Series SI 05C BOOK Page 250 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 265: ...for evaporated low pressure gas by the line 1 Normal cooling 2 Normal heating 3 Oil return cooling 4 Oil return heating 5 Defrost 6 Oil equalizing operation cooling 7 Oil equalizing operation heating...

Page 266: ...Operating Mode SiE 05C 252 Functions PLUS Series 5 1 1 Normal Cooling Constant speed outdoor unit 2 RNY10K Constant speed outdoor unit 1 RNY10K Inverter outdoor unit RXY10K VE012 Function unit BL3K ht...

Page 267: ...in Each Operating Mode Functions PLUS Series 253 5 1 2 Normal Heating Constant speed outdoor unit 2 RNY10K Constant speed outdoor unit 1 RNY10K Inverter outdoor unit RXY10K VE013 Function unit BL3K ht...

Page 268: ...erating Mode SiE 05C 254 Functions PLUS Series 5 1 3 Oil Return Cooling Constant speed outdoor unit 2 RNY10K Constant speed outdoor unit 1 RNY10K Inverter outdoor unit RXY10K VE014 Function unit BL3K...

Page 269: ...Each Operating Mode Functions PLUS Series 255 5 1 4 Oil Return Heating Constant speed outdoor unit 2 RNY10K Constant speed outdoor unit 1 RNY10K Inverter outdoor unit RXY10K VE015 Function unit BL3K...

Page 270: ...ch Operating Mode SiE 05C 256 Functions PLUS Series 5 1 5 Defrost Constant speed outdoor unit 2 RNY10K Constant speed outdoor unit 1 RNY10K Inverter outdoor unit RXY10K VE016 Function unit BL3K http s...

Page 271: ...perating Mode Functions PLUS Series 257 5 1 6 Oil Equalizing Operation Cooling Constant speed outdoor unit 2 RNY10K Constant speed outdoor unit 1 RNY10K Inverter outdoor unit RXY10K VE017 Function uni...

Page 272: ...e SiE 05C 258 Functions PLUS Series 5 1 7 Oil Equalizing Operation Heating Step 1 Constant speed outdoor unit 2 RNY10K Constant speed outdoor unit 1 RNY10K Inverter outdoor unit RXY10K VE018 Function...

Page 273: ...ting Mode Functions PLUS Series 259 5 1 8 Oil Equalizing Operation Heating Step 2 Constant speed outdoor unit 2 RNY10K Constant speed outdoor unit 1 RNY10K Inverter outdoor unit RXY10K VE019 Function...

Page 274: ...ode SiE 05C 260 Functions PLUS Series 5 1 9 Heating Pump Down Residual Operation Constant speed outdoor unit 2 RNY10K Constant speed outdoor unit 1 RNY10K Inverter outdoor unit RXY10K VE020 Function u...

Page 275: ...US Series 261 5 1 10 Refrigerant Pump Down Operation When Constant Speed Outdoor Unit has a Malfunction Constant speed outdoor unit 2 RNY10K Constant speed outdoor unit 1 RNY10K Inverter outdoor unit...

Page 276: ...05C 262 Functions PLUS Series 5 1 11 Emergency Operation for Inverter Failure Cooling Constant speed outdoor unit 2 RNY10K Constant speed outdoor unit 1 RNY10K Inverter outdoor unit RXY10K VE022 Func...

Page 277: ...Mode Functions PLUS Series 263 5 1 12 Emergency Operation for Inverter Failure Heating Constant speed outdoor unit 2 RNY10K Constant speed outdoor unit 1 RNY10K Inverter outdoor unit RXY10K VE023 Func...

Page 278: ...in each mode is shown for high pressure gas or condensed liquid refrigerant by the line and for evaporated low pressure gas by the line 1 Normal cooling 2 Oil return cooling 3 Oil equalizing operation...

Page 279: ...in Each Operating Mode Functions PLUS Series 265 5 2 1 Normal Cooling Function unit BC3K Constant speed outdoor unit 1 RN10K Constant speed outdoor unit 2 RN10K Inverter outdoor unit RX10K VE024 http...

Page 280: ...perating Mode SiE 05C 266 Functions PLUS Series 5 2 2 Oil Return Cooling Function unit BC3K Constant speed outdoor unit 1 RN10K Constant speed outdoor unit 2 RN10K Inverter outdoor unit RX10K VE025 ht...

Page 281: ...Operating Mode Functions PLUS Series 267 5 2 3 Oil Equalizing Operation Cooling Function unit BC3K Constant speed outdoor unit 1 RN10K Constant speed outdoor unit 2 RN10K Inverter outdoor unit RX10K V...

Page 282: ...ng Mode SiE 05C 268 Functions PLUS Series 5 2 4 Refrigerant Pump Down Operation Function unit BC3K Constant speed outdoor unit 1 RN10K Constant speed outdoor unit 2 RN10K Inverter outdoor unit RX10K V...

Page 283: ...g Mode Functions PLUS Series 269 5 2 5 Emergency Operation for Inverter Failure Cooling Function unit BC3K Constant speed outdoor unit 1 RN10K Constant speed outdoor unit 2 RN10K Inverter outdoor unit...

Page 284: ...Flow of Refrigerant in Each Operating Mode SiE 05C 270 Functions PLUS Series http splitoff ru tehn doc html...

Page 285: ...Switch Settings According to Number of Outdoor Units 277 1 5 Setting Modes 278 1 6 Sequential Start 286 1 7 External Control Adaptor for Outdoor Units DTA104A61 DTA104A62 287 1 8 Cool Heat Mode Switch...

Page 286: ...oor No switch of constant speed type outdoor unit SS2 Addition or replenishment of refrigerant as needed Fully close respective stop valves on liquid gas and pressure equalizing sides of function unit...

Page 287: ...heating season set to cooling mode in order to prevent liquid from backing up You may however run the unit in the heating mode if the outdoor temperature is 5 C or lower To enter the test operation mo...

Page 288: ...when automatic setting is complete 1 2 3 When an Outdoor Unit Indoor Unit or BS Unit Has Been Added or Indoor Unit PC Board Has Been Changed Be sure to push and hold the wiring change button for 5 se...

Page 289: ...Test Operation Test Operation PLUS Series 275 1 3 Outdoor Unit PC Board Ass y Function Unit and Outdoor Unit Inverter Type SI 05C BOOK Page 275 Monday November 6 2000 4 13 PM http splitoff ru tehn do...

Page 290: ...or unit No setting SS2 Note This setting is not available on the inverter type Presettable for constant speed outdoor unit only 2 Second unit 3 Third unit 5 Function of setting between cooling and hea...

Page 291: ...3 outdoor units 1 4 2 If there are 2 outdoor units There is no switch for setting the number of outdoor units SS3 for BL2K and BR2K NOTE 1 Switch the switches described above before turning on the po...

Page 292: ...select SEQ START L N O P IND MASTER SLAVE MODE BS1 SET BS2 RETURN BS3 WIRING CHECK BS4 RESET BS5 H1P H2P H3P H4P H5P H6P H7P IN D UNIT OUT D UNIT C H SELECT SS1 Used to set the cool heat select Used...

Page 293: ...RETURN button Press the RETURN button Contents displayed Select cool heat run with the operation button Select low noise run with the operation button Press the RETURN button Press the SET button Pre...

Page 294: ...start MODE TEST L N O P SEQ IND MASTER SLAVE START H1P H2P H3P H4P H5P H6P H7P SET MODE TEST L N O P SEQ IND MASTER SLAVE START H1P H2P H3P H4P H5P H6P H7P C H SELECT SET MODE TEST L N O P SEQ IND MAS...

Page 295: ...10 settings 2 Push the RETURN button BS3 and the present settings flicker LED display 3 Push the SET button BS2 and match with each setting LED flicker display 4 Push the RETURN button BS3 and enter t...

Page 296: ...oling High pressure setting for heating Temperature setting for defrost Address for Air NET Pump down operation of INV outdoor unit Pump down operation of STD 1 outdoor unit Pump down operation of STD...

Page 297: ...address 2 S S S S Address 0 Binary number 1 6 digits 2 63 Address for Air Net Air Net address 10 S S S S Address 0 Binary number 1 6 digits 2 31 Address for low noise demand operation Low noise deman...

Page 298: ...mperature setting for defrost Quick defrost Normal factory set Slow defrost EMG emergency operation when malfunction occurs ON OF Push the SET button and match with the LEDs No 1 15 push the RETURN bu...

Page 299: ...er of connected zone units excluding outdoor and BS units 0 63 units Lower 6 digits No 8 Number of outdoor units 0 63 units Lower 6 digits No 9 Number of BS units 0 128 units Lower 4 digits upper No 1...

Page 300: ...1 compressor are to be started at the same time Improved wiring system enables sequential start of up to 5 function units and 10 outdoor units If you want to carry out sequential start connect outdoor...

Page 301: ...taneously select cool heat mode for several outdoor units in the system and it enables demand control and low noise control Part Names and Functions Note SS2 is not applicable to cooling only system 1...

Page 302: ...When short circuit between 1 and C Approx 70 as a guideline When short circuit between 2 and C Approx 40 as a guideline When short circuit between 3 and C Forced fan operation Low noise control Outdoo...

Page 303: ...e wiring specifications Recommended electric wiring Sheathed vinyl cord or cable 0 75 1 25 mm double core Wiring length Max 150 m Run separate from power line in order to prevent malfunction Note Be s...

Page 304: ...t remote controller 4 Set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by cool heat selector Details of each setting mode are explained...

Page 305: ...Outdoor System by C H SELECTOR It doesn t matter whether or not there is outdoor outdoor unit wiring Set function unit PC board SS1 to outdoor Set cool heat switching to individual for setting mode 1...

Page 306: ...trol adaptor for outdoor unit on either the outdoor outdoor indoor outdoor or indoor indoor transmission line Set SS1 of the outdoor unit PCB to IN D UNIT factory set In setting mode 1 set the outdoor...

Page 307: ...ntrol adaptor for outdoor unit on either the outdoor outdoor indoor outdoor or indoor indoor transmission line Set SS1 of the outdoor unit PCB to OUT DOOR UNIT factory set In setting mode 1 set the ou...

Page 308: ...Set low noise operation to ON Setting mode 2 Match low noise operation and demand control address with address of outdoor unit external control adaptor 2 Outdoor unit external control adaptor setting...

Page 309: ...1 Set low noise operation to ON Setting mode 2 Match low noise operation and demand control address with address of outdoor unit external control adaptor 2 Outdoor unit external control adaptor settin...

Page 310: ...lights and goes off when finished If TEST H2P flickers wiring check operation failure push and hold the RESET button BS5 for 5 seconds and then repeat the procedure from the beginning 3 About 1 minute...

Page 311: ...2T for Heat Exchanger 309 3 14 Outdoor Unit Malfunction of Thermistor R6T for Header 310 3 15 Outdoor Unit Malfunction of Discharge Pipe Pressure Sensor 311 3 16 Outdoor Unit Malfunction of Suction Pi...

Page 312: ...SiE 05C 298 Troubleshooting PLUS Series 5 8 Open Phase 329 5 9 Defect of Radiator Fin Temperature Sensor 330 SI 05C BOOK Page 298 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 313: ...ther series The HWL lamp lights to let you know which of the outdoor units is malfunctioning The function unit is not equipped with a HWL Example If an E0 malfunction is displayed on the remote contro...

Page 314: ...n of Thermistor R2T for Heat Exchanger 309 J7 Outdoor Unit Malfunction of Thermistor R6T for Header 310 JA Outdoor Unit Malfunction of Discharge Pipe Pressure Sensor 311 JC Outdoor Unit Malfunction of...

Page 315: ...magnetic switch Other 2 Tripped fan motor safety thermostat Faulty fan motor Faulty condenser Other YES YES YES YES Connect the connectors or terminals and operate Standard type unit magnetic switch O...

Page 316: ...ty thermostat Faulty fan motor Faulty condenser Other YES YES YES YES Connect the connectors or terminals and operate Standard 1 type unit magnetic switch OC 1 Standard 2 type unit magnetic switch OC...

Page 317: ...High Pressure Switch Remote Controller Display E E E E3 3 3 3 Supposed Causes Actuation of outdoor unit high pressure switch Defect of outdoor unit PC board Instantaneous power failure Trobleshooting...

Page 318: ...teristics table Refer to Pressure Sensor Voltage Output Detected Pressure Characteristics on P366 YES YES Out of gas refrigerant system clogging wiring and piping wrong connection Replace the low pres...

Page 319: ...inuity between the connector pins Normal Continuity Approx 300 Continuity Approx 150 x No continuity YES YES YES After connecting turn the power off and then back on again Replace the moving part of t...

Page 320: ...s 135 C or higher NO 8 10K Is there a wrong connection of the injection solenoid valves Y2S and Y3S 8 10K Is there a wrong connection of the discharge pipe thermistor INV outdoor unit R3 1T inverter s...

Page 321: ...sconnected or faulty wiring connector Trobleshooting YES YES Connect the wiring and turn on again Replace the pressure switch for low pressure control S3HP Replace outdoor unit PC board Is connector c...

Page 322: ...which the HWL is lit in accordance with the following flow chart The alarm indicator is displayed when the fan is being used also YES YES Connect the thermistor and turn on again Replace the thermist...

Page 323: ...r which the HWL is lit in accordance with the following flow chart The alarm indicator is displayed when the fan is being used also YES YES Connect the thermistor and turn on again Replace the thermis...

Page 324: ...ccordance with the following flow chart The alarm indicator is displayed when the fan is being used also YES YES Connect the thermistor and turn on again Replace the thermistor R6T Replace outdoor uni...

Page 325: ...or pressure voltage characteristics table Refer to Pressure Sensor Voltage Output Detected Pressure Characteristics on P366 YES YES Connect the high pressure sensor and turn on again Replace outdoor u...

Page 326: ...ssure voltage characteristics table Refer to Pressure Sensor Voltage Output Detected Pressure Characteristics on P366 YES YES Connection of high pressure sensor with wrong connection Replace outdoor u...

Page 327: ...unit for which the HWL is lit in accordance with the following flow chart YES YES Connect the thermistor and and turn on again Replace thermistor R5T Replace outdoor unit PC board INV outdoor unit A1P...

Page 328: ...on pipe temperature minus coil temperature is 20 C or higher NO Resistance is normal when measured with the suction pipe thermistor R4T and coil thermistor R2T disconnected from the outdoor unit PC bo...

Page 329: ...ing YES YES Fix the open phase Requires inspection of field power supply section Negative phase Disposal of the problem is completed by phase replacement Replace outdoor unit PC board A1P There is an...

Page 330: ...rd is linking The standby lamp H2P is blinking Wait until the lamp goes off Is indoor outdoor and outdoor outdoor unit transmission wiring normal NO NO NO NO NO YES YES NO Is indoor outdoor and outdoo...

Page 331: ...C H setting is set to MASTER C H setting is set to SLAVE NO NO NO NO NO NO YES YES YES YES YES YES NO Is indoor outdoor unit transmission wiring normal Are the following items normal Are the followin...

Page 332: ...8K RXY20K Max 20 units RXY24K 26K 28K 30K 30 units Refer to Indoor Outdoor Unit Combinations on P197 YES YES The number of connectable indoor units has been exceeded Change the number of units connect...

Page 333: ...off for more than 12 hours or if it is not carried out after running all connected indoor units in the fan mode for at least an hour Wiring check operation carried out Is indoor outdoor and outdoor o...

Page 334: ...nd outdoor outdoor unit transmission wiring normal After fixing incorrect wiring push and hold the RESET button on the outdoor unit PC board for 5 seconds Does a malfunction occur Does a UH malfunctio...

Page 335: ...take port of the radiator fin clogged L5 Instantaneous over current Inspect the compressor L8 Electronic thermostat Inspection the compressor and refrigerant system L9 Stall prevention Inspection the...

Page 336: ...retry is attempted the prescribed number of times If the number of retry times is exceeded within 60 minutes malfunction is ascertained and the corresponding malfunction code is displayed on the indoo...

Page 337: ...istor Troubleshooting YES YES Defect of power unit radiation Intake port is clogged Radiator fin is dirty Outdoor temperature is high Replace the thermistor Replace the inverter Characteristic check o...

Page 338: ...al voltage YES YES Replace the compressor Replace the inverter unit Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor D...

Page 339: ...Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor Disconnect the the connection between he compressor and inverter The...

Page 340: ...nit Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor Disconnect the the connection between the compressor and inverter...

Page 341: ...unit connected securely The transmission wiring between the outdoor unit PC board and inverter unit is disconnected The microcomputer monitor green on the inverter unit is blinking The voltage between...

Page 342: ...DC Y1 YAL or more when the compressor is running U2 blinks again Monitor field power supply NO NO NO NO YES YES YES YES Is 220 240 V of power reaching the K1M coil Does the voltage between terminals P...

Page 343: ...ers Give the user a copy of notification of inspection results and leave it up to him to improve the imbalance Contact QC div Be sure to send a product report of the imbalance 1 Measure voltage at the...

Page 344: ...roller Display P P P P4 4 4 4 Supposed Causes Defect of radiator fin temperature sensor Defect of inverter unit Troubleshooting P4 occurs again Turn on again after letting 30 minutes or more pass afte...

Page 345: ...eries 1 Backup and Emergency Operation 332 1 1 Backup and Emergency Operation 332 2 Pump Down Operation when Replacing The Compressor 336 2 1 Pump Down Operation when Replacing The Compressor 336 SI 0...

Page 346: ...e table below The system can run by backup operation for up to 3 hours of total indoor unit operating time When 3 hours is exceeded and the malfunction still remains the system once again stops due to...

Page 347: ...e Can Operate Faulty Control HPS H3 Cannot Operate Cannot Operate Faulty Control LPS H4 Cannot Operate Cannot Operate Air Thermistor Malfunction H9 Can Operate Can Operate Discharge Pipe Thermistor Ma...

Page 348: ...setting mode 2 3 The indoor unit is turned by thermostat at the following minimum capacities BL2K BC2K 16 8 kW BL3K BC3K 33 6 kW BR2K BR3K All indoor units cool on by thermostat When heating 1 Shut th...

Page 349: ...essure Sensor Malfunction JC Cannot Operate Faulty Inverter System L0 Can Operate Faulty Inverter Cooling L4 Can Operate Compressor Motor Ground Fault L5 Can Operate Compressor Overload Disconnection...

Page 350: ...n See the following page for details For the simultaneous cool heat type it takes 3 10 minutes for the compressor to start operating LED 23 26 are for monitoring low pressure during operation Outdoor...

Page 351: ...Pump down operation Mode display Low pressure display Mode display Low pressure display Mode display Low pressure display Mode display Low pressure display Normal complete Compressor operation Push an...

Page 352: ...Pump Down Operation when Replacing The Compressor SiE 05C 338 Special Service Mode PLUS Series SI 05C BOOK Page 338 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 353: ...unit FXYLM 363 3 Characteristics 364 3 1 Thermistor Resistance Temperature Characteristics 364 3 2 Pressure Sensor Voltage Output Detected Pressure Characteristics 366 4 Method of Replacing The Invert...

Page 354: ...SiE 05C 340 Appendix Inverter K Series PLUS Series SI 05C BOOK Page 340 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 355: ...WL COMPRESSOR CONTACTOR M1C F1S SD R1V SENPL R1 4 R2T F1C DM C1R 3R BS1 5 RESISTOR THERMAL PROTECTOR KLIXON MF1 SOLENOID VALVE INJECTION M1C SOLENOID VALVE HOT GAS MAGNETIC RELAY A2P K2R K3R FIELD FUS...

Page 356: ...R F2C K2M C1R C2R Z1F A1P Z3F A3P T1R SWITCH BOX LEFT INVERTER BOX RIGHT X10A S2PH X11A X1S X2S F2C X8A Q1M X9A Q2M S1PH CAPACITOR MODE SET RETURN WIRING CHECK RESET PRINTED CIRCUIT BOARD J1HC J2HC PU...

Page 357: ...TACTOR M1C F1S SD R1V SENPL R1 4 R2T F1C DM C1R 3R BS1 5 RESISTOR THERMAL PROTECTOR KLIXON MF1 4 WAY VALVE SOLENOID VALVE INJECTION M1C SOLENOID VALVE HOT GAS MAGNETIC RELAY A2P K2R K3R FIELD FUSE INV...

Page 358: ...3R F2C K2M C1R C2R Z1F A1P Z3F A3P T1R SWITCH BOX LEFT INVERTER BOX RIGHT X10A S2PH X11A X1S X2S F2C X8A Q1M X9A Q2M S1PH CAPACITOR MODE SET RETURN WIRING CHECK RESET PRINTED CIRCUIT BOARD J1HC J2HC P...

Page 359: ...40V 22V PILOT LAMP ALARM WHITE S1PH S2PH PRESSURE SWITCH HIGH SOLENOID VALVE INJECTION M1C SOLENOID VALVE INJECTION M2C SOLENOID VALVE HOTGAS EQUALIZING SOLENOID VALVE HOTGAS THERMAL PROTECTOR MF1 MF2...

Page 360: ...Wiring Diagrams Outdoor Unit SiE 05C 346 Appendix Inverter K Series PLUS Series RNY8 10K7W1 2TW21576 1A SI 05C BOOK Page 346 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 361: ...SiE 05C Wiring Diagrams Outdoor Unit Appendix Inverter K Series PLUS Series 347 BL2KV1 3D000654C SI 05C BOOK Page 347 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 362: ...Wiring Diagrams Outdoor Unit SiE 05C 348 Appendix Inverter K Series PLUS Series BL3KV1 3D000652B SI 05C BOOK Page 348 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 363: ...SiE 05C Wiring Diagrams Outdoor Unit Appendix Inverter K Series PLUS Series 349 BR2KV1 3D000870A SI 05C BOOK Page 349 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 364: ...Wiring Diagrams Outdoor Unit SiE 05C 350 Appendix Inverter K Series PLUS Series BR3KV1 3D000869A SI 05C BOOK Page 350 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 365: ...door Unit Appendix Inverter K Series PLUS Series 351 2 Wiring Diagrams Indoor Unit 2 1 2 way blow ceiling mounted cassette FXYC20 25 32 63K7V1 SI 05C BOOK Page 351 Monday November 6 2000 4 13 PM http...

Page 366: ...Wiring Diagrams Indoor Unit SiE 05C 352 Appendix Inverter K Series PLUS Series FXYC40 50 80 125K7V1 2TW21416 1 SI 05C BOOK Page 352 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 367: ...ndoor Unit Appendix Inverter K Series PLUS Series 353 2 2 4 way blow ceiling mounted cassette FXYF20 25 32 40 50 63 80 100 125K7V1 2TW21266 1B SI 05C BOOK Page 353 Monday November 6 2000 4 13 PM http...

Page 368: ...s Indoor Unit SiE 05C 354 Appendix Inverter K Series PLUS Series 2 3 ceiling mounted corner cassette FXYK25 32 40 63KJV1 DU227 544C SI 05C BOOK Page 354 Monday November 6 2000 4 13 PM http splitoff ru...

Page 369: ...Diagrams Indoor Unit Appendix Inverter K Series PLUS Series 355 2 4 concealed ceiling unit FXYS20 25 32 40 50 63KA7V1 2TW22196 1A SI 05C BOOK Page 355 Monday November 6 2000 4 13 PM http splitoff ru...

Page 370: ...Wiring Diagrams Indoor Unit SiE 05C 356 Appendix Inverter K Series PLUS Series FXYS80 100 125KA7V1 2TW22256 1A SI 05C BOOK Page 356 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 371: ...ring Diagrams Indoor Unit Appendix Inverter K Series PLUS Series 357 2 5 concealed ceiling unit small FXYB20 25K7V1 2TW21466 1 SI 05C BOOK Page 357 Monday November 6 2000 4 13 PM http splitoff ru tehn...

Page 372: ...ndoor Unit SiE 05C 358 Appendix Inverter K Series PLUS Series 2 6 concealed ceiling unit large FXYM40 50 63 80 100 125KJV1 DU229 5140C SI 05C BOOK Page 358 Monday November 6 2000 4 13 PM http splitoff...

Page 373: ...SiE 05C Wiring Diagrams Indoor Unit Appendix Inverter K Series PLUS Series 359 FXYM200 250KJVE 3D011012B SI 05C BOOK Page 359 Monday November 6 2000 4 13 PM http splitoff ru tehn doc html...

Page 374: ...agrams Indoor Unit SiE 05C 360 Appendix Inverter K Series PLUS Series 2 7 ceiling suspended unit FXYH32 63 100K7V1 2TW21356 1 SI 05C BOOK Page 360 Monday November 6 2000 4 13 PM http splitoff ru tehn...

Page 375: ...iring Diagrams Indoor Unit Appendix Inverter K Series PLUS Series 361 2 8 wall mounted unit FXYA25 32 40 50 63KJV1 DU221 561F SI 05C BOOK Page 361 Monday November 6 2000 4 13 PM http splitoff ru tehn...

Page 376: ...agrams Indoor Unit SiE 05C 362 Appendix Inverter K Series PLUS Series 2 9 floor standing unit FXYL20 25 40 50 63KJVE 3D003923E SI 05C BOOK Page 362 Monday November 6 2000 4 13 PM http splitoff ru tehn...

Page 377: ...Diagrams Indoor Unit Appendix Inverter K Series PLUS Series 363 2 10 concealed floor standing unit FXYLM20 25 40 50 63KJVE 3D003923E SI 05C BOOK Page 363 Monday November 6 2000 4 13 PM http splitoff r...

Page 378: ...46 8 37 8 21 3 76 93 74 94 47 8 05 7 90 2 73 01 71 14 48 7 75 7 60 1 69 32 67 56 49 7 46 7 31 0 65 84 64 17 50 7 18 7 04 1 62 54 60 96 51 6 91 6 78 2 59 43 57 94 52 6 65 6 53 3 56 49 55 08 53 6 41 6...

Page 379: ...223 08 72 32 78 32 23 122 7 06 6 97 23 218 24 213 51 73 31 69 31 15 123 6 87 6 78 24 208 90 204 39 74 30 63 30 12 124 6 69 6 59 25 200 00 195 71 75 29 61 29 12 125 6 51 6 42 26 191 53 187 44 76 28 64...

Page 380: ...istics SiE 05C 366 Appendix Inverter K Series PLUS Series 3 2 Pressure Sensor Voltage Output Detected Pressure Characteristics SI 05C BOOK Page 366 Monday November 6 2000 4 13 PM http splitoff ru tehn...

Page 381: ...ors and Diode Modules Decision according to continuity check by analog tester Before checking disconnect the electric wiring connected to the power transistor and diode module 4 1 1 Power Transistor O...

Page 382: ...endix Inverter K Series PLUS Series 4 1 2 Diode Module Decision If other than given above the diode module is defective and must be replaced Note If using a digital tester and continuity may be revers...

Page 383: ...be used in combination with other optional controllers for centralized control central remote controller unified on off controller schedule timer DDS etc 5 1 1 Outline of System 1 Individual control c...

Page 384: ...gnal Fetch Display of malfunction signal no voltage contact a Display of operation no voltage contact a Remote temperature setting Can be set from 16 32 C Note For voltage input approximately 10 mA of...

Page 385: ...ieved input A must be input over again C If controlling operation using instantaneous input for input A Use instantaneous input of min 200 msec ON time Input B has a forced OFF function when input B i...

Page 386: ...s position 5 Forced thermostat OFF command D Forced temperature shift E Individual Same as position 6 Forced thermostat OFF command F Forced temperature shift Position Function Contents of input A whe...

Page 387: ...uipped with an air cleaner unit however the mounting box is mounted on the side of the main body If using two types of adaptor PC boards two mounting boxes must be mounted on the side of the main body...

Page 388: ...d for turning units on off and setting temperature from a remote location display of operation and invoking display of malfunction A single adaptor enables unified control of groups connected to the r...

Page 389: ...ote controller permitted stops by OFF remote controller inhibited 5 Remote controller inhibited ON OFF cyclic 6 Individual Same as mode 5 only OFF by remote controller always permitted Stops by ON rem...

Page 390: ...Output Both RY1 and RY2 OFF Only RY1 ON Only RY2 ON System Individual control or individual display Group control OFF All normal operation Even one unit stopped due to malfunction or transmission malf...

Page 391: ...ctive use Enables you to fetch compressor and fan operation output when optional accessories auxiliary electric heater humidifier fresh air intake kit with fan duct are installed 5 3 1 Part Names and...

Page 392: ...umidifier Ultrasonic humidifier Other required optional accessories Mounting position FXYC K KRP1B61 Not required Mounted inside electrical parts box of main unit FXYK K FXYS K Hot water heater FXYM K...

Page 393: ...llers for centralized control central remote controller unified ON OFF controller schedule timer with SKY AIR Part Names and Functions System Outline If using VRV System Inverter in common with transm...

Page 394: ...erter K Series PLUS Series 5 4 1 Connection Interface adaptor for SKY AIR series Independent control Group control HRV energy efficient operation Pair Multi SI 05C BOOK Page 380 Monday November 6 2000...

Page 395: ...m among 0 9 and A F with RS2 Be careful not to duplicate a group No of other apparatus when setting Output for Control ON output terminals W1 W2 and OFF output terminals W3 W4 are no voltage contact o...

Page 396: ...be effected from other air conditioner For without individual stop can be effected from optional central controller only For with individual stop can be effected from other air conditioner as well Fac...

Page 397: ...r Appendix Inverter K Series PLUS Series 383 5 5 3 Mounting of DTA103A51 Storage box is field supplied Outer dimensions 230 W x230 D x60 H SI 05C BOOK Page 383 Monday November 6 2000 4 13 PM http spli...

Page 398: ...d in a DIII NET you can simultaneously select cool heat mode for several outdoor units in the system and it enables demand control and low noise control 5 6 1 Part Names and Functions 5 6 2 Cool Heat...

Page 399: ...l input to the adaptor for outside control of outdoor units enables demand and low noise control Demand Control Figures Indicate Demand Rate When short circuit between 1 and C Approx 70 as a guideline...

Page 400: ...sing cool heat simultaneous selection type For detailed settings see the installation manual Refer to the INSTALLATION INSTRUCTION Common Control Input Specifications Input signal Constant contact a I...

Page 401: ...ion and unified control from the host computer monitor panel on off commands 5 7 1 System Outline Unified Display Displays operation and malfunctions of all indoor units controlled by central remote c...

Page 402: ...Wiring to Host Computer Monitor Panel Etc Specifications of wiring for transmission 0 75 1 25 mm sheathed vinyl cord or cable double core Max length 150 m 5 7 4 Control Input Unified ON OFF Control W...

Page 403: ...Set all switches before turning on the power supply External Control Input Wiring to Host Computer Monitor Panel Etc Fetching the display signal Normal operation output terminals W1 W2 and malfunctio...

Page 404: ...ation of DCS302A2 Install inside the control panel in the same place as the central remote controller in the field Length of attached wiring is approx 5 m Fasten securely with the attached screws SI 0...

Page 405: ...oling Only System 290 Cooling Only Model 264 Cooling Overload Control 238 Cooling Start Following Layup 221 D Defect of Compressor 326 Defect of Compressor Coil 324 Defect of Pressure Switch for High...

Page 406: ...nd Outdoor Unit PC Board 327 Malfunction of Discharge Pipe Pressure Sensor 146 311 Malfunction of Discharge Pipe Thermistor R3T 144 308 Malfunction of Drain Level Control System 33H 132 Malfunction of...

Page 407: ...Start 63 286 Setting Items 282 Setting Mode 1 58 280 Setting Mode 2 59 281 Setting Modes 57 278 Setting of Master Remote Controller 87 Soft Start 28 220 Standby by Outdoor Temperature When Heating 23...

Page 408: ...301A51 DCS301B61 105 V VRV System Inverter K Series System Outline 5 W Wiring Adaptor for Electrical Appendices KRP2A61 62 369 Wiring Adaptor for Group Electrical Appendices KRP4A51 KRP4A52 KRP4A53 37...

Page 409: ...ndividual Outdoor Unit System by Cool Heat Selector 68 Setting of Cool Heat by Individual Outdoor Unit System by Indoor Unit Remote Controller 67 Setting of Cool Heat by Outdoor Unit System Group in A...

Page 410: ...ge Pipe Thermistor R3T 308 Malfunction of Moving Part of Electronic Expansion Valve Y1E 305 Malfunction of Oil Temperature Thermistor R5T 313 Malfunction of Suction Pipe Pressure Sensor 312 Malfunctio...

Page 411: ...f Master Remote Controller 87 Soft Start 220 Soft Start of Compressor 28 Step Down Safety Control Standby Forced Thermostat OFF Stop Due to Malfunction Discharge Pipe Temperature Td Control 35 High Pr...

Page 412: ...agrams Outdoor Unit BL2KV1 347 BL3KV1 348 BR2KV1 349 BR3KV1 350 RNY8 10K7W1 346 RSX5KA7W1 341 RSX8 10KA7W1 342 RSXY5KA7W1 343 RSXY8 10KA7W1 344 RXY8 10K7W1 345 SI 05C BOOK Page viii Monday November 6...

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