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Daikin VRV K Manual

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Si-95TOC.fm Page i Tuesday, April 11, 2000 2:19 PM
Si-95
1. Introduction .............................................................................................v
General Information Inverter K Series ..............................1
1. Outline.....................................................................................................2
Functions Inverter K Series ...............................................5
1. Functions.................................................................................................6
Test Operation Inverter K Series.....................................41
1. Test Operation ......................................................................................42

Table of Contents

Inverter K Series
1.1 Safety Cautions ....................................................................................... v
1.2 PREFACE................................................................................................ix
1.1 System Outline ........................................................................................ 2
1.1 Outdoor Unit Refrigerant Diagrams ......................................................... 6
1.3 Flow of Refrigerant in Each Operation Mode ........................................ 10
1.4 Outline of Control................................................................................... 15
1.5 Safety for Restart................................................................................... 17
(Equalized Oil Level between Twin Compressors)................................ 19
1.7 Oil Return Operation.............................................................................. 20
1.8 Defrost ................................................................................................... 21
1.9 Pressure Equalization Control ............................................................... 23
1.11 BS Changeover Control......................................................................... 25
1.12 Pump Down Residual Operation ........................................................... 26
Stop Due to Malfunction ........................................................................ 27
1.14 Low Noise Control ................................................................................. 29
1.15 Demand Control .................................................................................... 30
1.16 Compressor Capacity Control ............................................................... 31
1.17 Te / Tc Setting ....................................................................................... 32
1.18 Gas Depletion Alarm ............................................................................. 33
1.19 Drain Pump Control ............................................................................... 34
1.20 Louver Control for Preventing Ceiling Dirt ............................................. 36
1.21 Thermostat Sensor in Remote Controller .............................................. 37
1.22 Freeze Prevention ................................................................................. 39
1.1 When Power is Turned On .................................................................... 42
1.2 Outdoor Unit PC Board Ass'y ................................................................ 43
1.3 Setting Modes........................................................................................ 45
1.4 Sequential Start ..................................................................................... 51
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  • Page 1: Table Of Contents

    Si-95TOC.fm Page i Tuesday, April 11, 2000 2:19 PM Si-95 Inverter K Series Series 1. Introduction .....................v 1.1 Safety Cautions ..................v 1.2 PREFACE....................ix Part1 General Information Inverter K Series ......1 1. Outline.....................2 1.1 System Outline ..................2 1.2 Allowed Range of Indoor Unit and BS Unit Connection ......3 Part2 Functions Inverter K Series ..........5 1.
  • Page 2 SI-95.BOOK Page ii Friday, March 31, 2000 10:59 AM Si-95 1.6 Cool/Heat Mode Switching ..............56 1.7 Low Noise Operation ................58 1.8 Demand Control ..................59 1.9 Wiring Check Operation ................ 60 1.10 Indoor Field Setting ................61 1.11 Centralized Control Group No. Setting ..........63 1.12 Setting of Master Remote Controller .............
  • Page 3 SI-95.BOOK Page iii Friday, March 31, 2000 10:59 AM Si-95 2.31 Malfunction of Transmission Between MAIN and SUB Remote Controllers .............. 107 2.32 Malfunction of Transmission Between Indoor and Outdoor Units in the Same System ..........108 2.33 Excessive Number of Indoor Units ............109 2.34 Address Duplication of Central Remote Controller......
  • Page 4 Si-95TOC.fm Page iv Tuesday, April 11, 2000 2:21 PM Si-95 Part 5 Appendix.................137 1. Characteristics ..................138 1.1 Thermistor Resistance / Temperature Characteristics ......138 1.2 Pressure Sensor Voltage Output / Detected Pressure Characteristics ..............140 2. Method of Replacing The Inverter’s Power Transistors and Diode Modules ................141 2.1 Method of Replacing The Inverter’s Power Transistors and Diode Modules................

  • Page 5: Introduction

    SI-95.BOOK Page v Friday, March 31, 2000 10:59 AM Si-95 Introduction 1. Introduction Safety Cautions I Be sure to read the following safety cautions before conducting repair work. Cautions and I The caution items are classified into “ Warnings Warning ” and “ Caution ”.
  • Page 6 SI-95.BOOK Page vi Friday, March 31, 2000 10:59 AM Introduction Si-95 Caution Do not repair the electrical components with wet hands. Working on the equipment with wet hands can cause an electrical shock. Do not clean the air conditioner by splashing water. Washing the unit with water can cause an electrical shock.
  • Page 7 SI-95.BOOK Page vii Friday, March 31, 2000 10:59 AM Si-95 Introduction Warning When connecting the cable between the indoor and outdoor units, make sure that the terminal cover does not lift off or dismount because of the cable. If the cover is not mounted properly, the terminal connection section can cause an electrical shock, excessive heat generation or fire.
  • Page 8 SI-95.BOOK Page viii Friday, March 31, 2000 10:59 AM Introduction Si-95 Caution If the installation platform or frame has corroded, replace it. Corroded installation platform or frame can cause the unit to fall, resulting in injury. Check the grounding, and repair it if the equipment is not properly grounded. Improper grounding can cause an electrical shock.

  • Page 9: Preface

    The service manual for the VRV K Series Heat Recovery System (with scroll type compressor) explains the new methods (super piping and super wiring) featured by the system in four sections: Outline, Functions, Test Operation and Troubleshooting.
  • Page 10 SI-95.BOOK Page x Friday, March 31, 2000 10:59 AM Introduction Si-95...

  • Page 11: Part1 General Information Inverter K Series

    SI-95.BOOK Page 1 Friday, March 31, 2000 10:59 AM Si-95 Part1 General Information Inverter K Series 1. Outline.....................2 1.1 System Outline ..................2 1.2 Allowed Range of Indoor Unit and BS Unit Connection ......3 General Information Inverter K Series...

  • Page 12: Outline

    Part1.fm Page 2 Tuesday, April 11, 2000 2:28 PM Outline Si-95 1. Outline System Outline Allows individual control of different types of indoor units with varying capacities totaling 50 to 130% of the outdoor unit capacity. ∗ When total indoor capacity exceeds 100%, indoor unit operating capacity may decrease slightly if all indoor units are operated at the same time.

  • Page 13: Allowed Range Of Indoor Unit And Bs Unit Connection

    SI-95.BOOK Page 3 Friday, March 31, 2000 10:59 AM Si-95 Outline Allowed Range of Indoor Unit and BS Unit Connection Range A Range B BS unit Range C Range C Range C Range C Indoor unit ( Cooling ( Cooling only unit ) only unit ) I Arrange systems to conform below conditions referring to above diagram.
  • Page 14 SI-95.BOOK Page 4 Friday, March 31, 2000 10:59 AM Outline Si-95 General Information Inverter K Series...

  • Page 15: Part2 Functions Inverter K Series

    SI-95.BOOK Page 5 Friday, March 31, 2000 10:59 AM Si-95 Part2 Functions Inverter K Series 1. Functions....................6 1.1 Outdoor Unit Refrigerant Diagrams ............6 1.2 List of Safety Devices and Functional Parts Setting Values....9 1.3 Flow of Refrigerant in Each Operation Mode ........10 1.4 Outline of Control...................

  • Page 16: Functions

    SI-95.BOOK Page 6 Friday, March 31, 2000 10:59 AM Functions Si-95 1. Functions Outdoor Unit Refrigerant Diagrams RSEY8K, 10KLY1 Functions Inverter K Series...
  • Page 17 SI-95.BOOK Page 7 Friday, March 31, 2000 10:59 AM Si-95 Functions A. Compressor The 20-step capacity control is achieved by the inverter scroll compressor that uses an inverter for frequency control in a range of 30 to 116 Hz and the standard scroll compressor that uses commercial power supply.
  • Page 18 SI-95.BOOK Page 8 Friday, March 31, 2000 10:59 AM Functions Si-95 BSV100KLV1 A. Solenoid valve (suction side) Y2S This solenoid valve turns ON when normal cooling operation and discharge/suction oil return operation. (Connect indoor unit gas pipe and outdoor unit suction pipe.) B.

  • Page 19: List Of Safety Devices And Functional Parts Setting Values

    SI-95.BOOK Page 9 Friday, March 31, 2000 10:59 AM Si-95 Functions List of Safety Devices and Functional Parts Setting Values 1.2.1 Outdoor Unit RSEY8·10KLY1(E) (8 · 10HP) Item Symbol Name Type RSEY8KLY1(E) RSEY10KLY1(E) Comp- Inverter JT100BAVTYE 3.5 kW JT100BAVTYE 3.5 kW ressor side Model JT100BATYE...

  • Page 20: Flow Of Refrigerant In Each Operation Mode

    SI-95.BOOK Page 10 Friday, March 31, 2000 10:59 AM Functions Si-95 Flow of Refrigerant in Each Operation Mode 1.3.1 Cooling Functions Inverter K Series...
  • Page 21 SI-95.BOOK Page 11 Friday, March 31, 2000 10:59 AM Si-95 Functions 1.3.2 Heating Functions Inverter K Series...
  • Page 22 SI-95.BOOK Page 12 Friday, March 31, 2000 10:59 AM Functions Si-95 1.3.3 Simultaneous Cooling and Heating Functions Inverter K Series...
  • Page 23 SI-95.BOOK Page 13 Friday, March 31, 2000 10:59 AM Si-95 Functions 1.3.4 Discharge Oil Return, Defrost Functions Inverter K Series...
  • Page 24 SI-95.BOOK Page 14 Friday, March 31, 2000 10:59 AM Functions Si-95 1.3.5 Suction Oil, Defrost Functions Inverter K Series...

  • Page 25: Outline Of Control

    SI-95.BOOK Page 15 Friday, March 31, 2000 10:59 AM Si-95 Functions Outline of Control 1.4.1 Inverter Compressor, Motorized PI Control 1. Compressor PI control I Cooling operation Controls TeS (target Te value) at constant ··· Constant-level control of Te (low pressure equivalent saturation temperature) TeS = 5.5˚C I Heating operation...
  • Page 26 SI-95.BOOK Page 16 Friday, March 31, 2000 10:59 AM Functions Si-95 Heat exchanger mode Heat exchanger 1 Heat exchanger 2 EV mode Cooling operation COND COND H + ON COND COND L + ON ↑  COND COND H + OFF ...

  • Page 27: Safety For Restart

    SI-95.BOOK Page 17 Friday, March 31, 2000 10:59 AM Si-95 Functions Safety for Restart 1.5.1 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.
  • Page 28 SI-95.BOOK Page 18 Friday, March 31, 2000 10:59 AM Functions Si-95 1.5.3 Pump Down Start If the compressor stops running with refrigerant still remaining in the accumulator, in order to prevent wet operation at the next compressor starting, it will perform pump down start with a completely dry accumulator, then it will operate normally.

  • Page 29: Equalized Oil Level Operation (Equalized Oil Level Between Twin Compressors)

    SI-95.BOOK Page 19 Friday, March 31, 2000 10:59 AM Si-95 Functions Equalized Oil Level Operation (Equalized Oil Level between Twin Compressors) If using two compressors (8, 10Hp) connected in parallel, oil level equalizing is carried out for 5 minutes if the cumulative running time of the standard compressor exceeds 2 hours in order to prevent lack of oil cause by difference in pressure inside the dome due to drift, and then reverts to normal operation.

  • Page 30: Oil Return Operation

    SI-95.BOOK Page 20 Friday, March 31, 2000 10:59 AM Functions Si-95 Oil Return Operation In order to collect refrigeration oil held up in connecting piping, the compressor’s operating time is counted, and oil return operation is carried out for 8 minutes 30 seconds every 8 hours (2 hour after turning on the power supply, and every 8 hours after that).

  • Page 31: Defrost

    SI-95.BOOK Page 21 Friday, March 31, 2000 10:59 AM Si-95 Functions Defrost Melts frost which might collect on outdoor heat exchangers during heating in order to recover their heat transfer performance. Conditions for executing defrost At least 20 minutes have elapsed since completion of oil return or since compressor starts. High pressure <...
  • Page 32 SI-95.BOOK Page 22 Friday, March 31, 2000 10:59 AM Functions Si-95 Operation Contents Step 1 → Discharge defrost k = kg/cm Compressor 86Hz + OFF 1 Minute Preparation Elapses 2000pls for Defrost Outdoor Unit Fan OFF + OFF Outdoor Unit Heat Exchanger Condenser Upper Limit Frequency Limited to 38Hz + ON...

  • Page 33: Pressure Equalization Control

    SI-95.BOOK Page 23 Friday, March 31, 2000 10:59 AM Si-95 Functions Pressure Equalization Control The discharge gas and suction gas pipes are bypassed to eliminate differential pressure between the inlet and outlet of the solenoid valve during BS unit’s solenoid switching operations. I Equalizing operation demand →...

  • Page 34: Frequency Limit Control By Pressure Equalization

    SI-95.BOOK Page 24 Friday, March 31, 2000 10:59 AM Functions Si-95 1.10 Frequency Limit Control by Pressure Equalization The compressor operating capacity is limited to prevent abnormal noise caused by the equalizing operation. Operating conditions Equalizing operation demand issued & Not in cooling operation only During the first 30 seconds, the following operations are conducted.

  • Page 35: Bs Changeover Control

    SI-95.BOOK Page 25 Friday, March 31, 2000 10:59 AM Si-95 Functions 1.11 BS Changeover Control The solenoid valve of the BS unit is switched according to the indoor unit operating condition. Normal operation Oil return, defrost Oil return, defrost Discharge defrost Condition 1 Condition 3 Cooling...

  • Page 36: Pump Down Residual Operation

    SI-95.BOOK Page 26 Friday, March 31, 2000 10:59 AM Functions Si-95 1.12 Pump Down Residual Operation If refrigerant is remaining in the accumulator when the compressor starts, liquid refrigerant is sucked into the compressor, diluting the refrigerant machine oil and reducing the lubricating performance. To prevent this, the pump-down operation discharges refrigerant from the low pressure side when the unit is not in operation.

  • Page 37: Step Down / Safety Control → Standby (Forced Thermostat Off) → Stop Due To Malfunction

    SI-95.BOOK Page 27 Friday, March 31, 2000 10:59 AM Si-95 Functions 1.13 Step Down / Safety Control → Standby (Forced Thermostat OFF) → Stop Due to Malfunction High Pressure (Hp) Control Hp≥23.5kg/cm² Hp≥24.0kg/cm² Hp>25.0kg/cm² Hp>27.5kg/cm² (2.303MPa) (2.352MPa) (2.450MPa) (2.695MPa) Heat exchanger 76Hz+OFF(48Hz) Forced thermostat OFF E3 stop due...
  • Page 38 SI-95.BOOK Page 28 Friday, March 31, 2000 10:59 AM Functions Si-95 Discharge Super (DSH = Td - high pressure condensation saturation temperature) Heating (DSH) During both the inverter and standard compressors are running, when the injection valve for either one Control goes OFF and discharge super heating (DSH) continues for 10 minutes at temperature difference of less than 10˚C, the inverter+standard compressor are controlled at 76 Hz or less+OFF for 3 minutes.

  • Page 39: Low Noise Control

    SI-95.BOOK Page 29 Friday, March 31, 2000 10:59 AM Si-95 Functions 1.14 Low Noise Control If sound produced by outdoor units is a problem at night, etc., you can reduce the running noise by 2 to 3 dB by running the outdoor unit fans and compressors at low speed via contact input (low noise input) from outside.

  • Page 40: Demand Control

    SI-95.BOOK Page 30 Friday, March 31, 2000 10:59 AM Functions Si-95 1.15 Demand Control When you like to save the power consumption, there are three modes of demand operation which controls forced capacity save for outdoor units via contact input (demand input) from outside in order to control demand.

  • Page 41: Compressor Capacity Control

    SI-95.BOOK Page 31 Friday, March 31, 2000 10:59 AM Si-95 Functions 1.16 Compressor Capacity Control Pressure is sampled every 20 seconds by pressure sensors, and the inverter + standard compressor is controlled in 20 stages by microcomputer. Commercial power supply Commercial power supply compressor (off) compressor (full load)

  • Page 42: Te / Tc Setting

    SI-95.BOOK Page 32 Friday, March 31, 2000 10:59 AM Functions Si-95 1.17 Te / Tc Setting You can alter the value of targets Te (evaporating pressure equivalent temperature) and Tc (condensing pressure equivalent temperature) with setting mode 2. PI control is used to control compressor capacity so that Te when cooling and Tc when heating are constant.

  • Page 43: Gas Depletion Alarm

    SI-95.BOOK Page 33 Friday, March 31, 2000 10:59 AM Si-95 Functions 1.18 Gas Depletion Alarm An alarm (U0) is given for severe gas depletion. Alarm is indicated but operation continues. When cooling Gas depletion alarm (U0) is displayed. While compressor is running Conditions given on the left continue for 30 min.

  • Page 44: Drain Pump Control

    SI-95.BOOK Page 34 Friday, March 31, 2000 10:59 AM Functions Si-95 1.19 Drain Pump Control 1. The drain pump is controlled by the ON/OFF buttons (4 button (1) - (4) given in the figure below). 1.19.1 When the Float Switch is Tripped While the Cooling Thermostat is ON: ∗...
  • Page 45 SI-95.BOOK Page 35 Friday, March 31, 2000 10:59 AM Si-95 Functions 1.19.3 When the Float Switch is Tripped During Heating Operation: During heating operation, if the float switch is not reset even after the 5 minutes operation, 5 seconds stop, 5 minutes operation cycle ends, operation continues until the switch is reset.

  • Page 46: Louver Control For Preventing Ceiling Dirt

    SI-95.BOOK Page 36 Friday, March 31, 2000 10:59 AM Functions Si-95 1.20 Louver Control for Preventing Ceiling Dirt We have added a control feature that allows you to select the range of in which air direction can be adjusted in order to prevent the ceiling surrounding the air discharge outlet of ceiling mounted cassette type units from being soiled.

  • Page 47: Thermostat Sensor In Remote Controller

    SI-95.BOOK Page 37 Friday, March 31, 2000 10:59 AM Si-95 Functions 1.21 Thermostat Sensor in Remote Controller Temperature is controlled by both the thermostat sensor in remote controller and air suction thermostat in the indoor unit. (This is however limited to when the field setting for the thermostat sensor in remote controller is set to “Use.”...
  • Page 48 SI-95.BOOK Page 38 Friday, March 31, 2000 10:59 AM Functions Si-95 Heating When heating, the hot air rises to the top of the room, resulting in the temperature being lower near the floor where the occupants are. When controlling by body thermostat sensor only, the unit may therefore be turned off by the thermostat before the lower part of the room reaches the preset temperature.

  • Page 49: Freeze Prevention

    SI-95.BOOK Page 39 Friday, March 31, 2000 10:59 AM Si-95 Functions 1.22 Freeze Prevention Freeze Prevention When the temperature detected by liquid pipe temperature thermistor (R2T) of the indoor unit heat by Off Cycle exchanger drops too low, the unit enters freeze prevention operation in accordance with the following (Indoor Unit) conditions, and is also set in accordance with the conditions given below.
  • Page 50 SI-95.BOOK Page 40 Friday, March 31, 2000 10:59 AM Functions Si-95 Functions Inverter K Series...

  • Page 51: Part3 Test Operation Inverter K Series

    SI-95.BOOK Page 41 Friday, March 31, 2000 10:59 AM Si-95 Part3 Test Operation Inverter K Series 1. Test Operation ..................42 1.1 When Power is Turned On ..............42 1.2 Outdoor Unit PC Board Ass’y ..............43 1.3 Setting Modes..................45 1.4 Sequential Start ..................

  • Page 52: Test Operation

    SI-95.BOOK Page 42 Friday, March 31, 2000 10:59 AM Test Operation Si-95 1. Test Operation When Power is Turned On 1.1.1 When Turning Power on the First Time The unit will not run for up to 12 minutes in order for master power supply and address (indoor unit address, etc.) to be set automatically.

  • Page 53: Outdoor Unit Pc Board Ass'y

    SI-95.BOOK Page 43 Friday, March 31, 2000 10:59 AM Si-95 Test Operation Outdoor Unit PC Board Ass’y RSEY8K / 10K Test Operation Inverter K Series...
  • Page 54 SI-95.BOOK Page 44 Friday, March 31, 2000 10:59 AM Test Operation Si-95 Service monitor <HAP> Normal ....licker (Green) Malfunction ..On or off Function setting switch or LED LED display : On : Flicker : Off Mode button ..Mode change Monitor mode Setting mode 1 Push 1 time.

  • Page 55: Setting Modes

    SI-95.BOOK Page 45 Friday, March 31, 2000 10:59 AM Si-95 Test Operation Setting Modes The three setting modes are as follows: Setting mode 1 ..Mode for selecting cool/heat setting method, and whether or not to use low noise operation and sequential start. (H1P off) Setting mode 2 ..
  • Page 56 SI-95.BOOK Page 46 Friday, March 31, 2000 10:59 AM Test Operation Si-95 1.3.1 Setting Mode 1 The factory settings are: TEST SEQ. Individual (C/H SELECT), OFF (L.N.O.P.), ON (SEQ. START) MODE L.N.O.P. START You can change the low noise and sequential start settings by pushing the SET switch.
  • Page 57 SI-95.BOOK Page 47 Friday, March 31, 2000 10:59 AM Si-95 Test Operation 1.3.2 Setting Mode 2 To enter setting mode 2 from setting mode 1 (normal), you must push and hold the MODE button (BS1) for 5 seconds. (Setting mode 2 cannot be entered while still making settings in setting mode 1.) Setting procedure 1.
  • Page 58 SI-95.BOOK Page 48 Friday, March 31, 2000 10:59 AM Test Operation Si-95 No Setting item Description LED display LED display LED display H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P Emergency Emergency operation ∗...

  • Page 59: Monitor Mode

    SI-95.BOOK Page 49 Friday, March 31, 2000 10:59 AM Si-95 Test Operation 1.3.3 Monitor Mode TEST SEQ. MODE L.N.O.P. START To enter the monitor mode, push the MODE button when in setting mode 1. MODE The lower 4 digits indicate the setting in each of the frames below.
  • Page 60 SI-95.BOOK Page 50 Friday, March 31, 2000 10:59 AM Test Operation Si-95 Monitor Mode Data Mode No. Data Display Size (binary number) method No 1 Low noise / demand address 0 ~ 31 Lower 6 digits 8777787 No 2 Not used 8777788 No 3 Not used...

  • Page 61: Sequential Start

    SI-95.BOOK Page 51 Friday, March 31, 2000 10:59 AM Si-95 Test Operation Sequential Start Separates the start timing for standard compressors by three seconds each in order to prevent over- current when several compressors are to be started simultaneously. Sequential start is possible for up to three units wired as a group to a single power supply. You should however connect an outdoor unit of small capacity as the third unit in the sequence.

  • Page 62: External Control Adaptor For Outdoor Units (Dta104A61 Dta104A62)

    Part3.fm Page 52 Tuesday, April 11, 2000 2:05 PM Test Operation Si-95 External Control Adaptor for Outdoor Units (DTA104A61 DTA104A62) <Objective/use> By adding an adaptor for outside control of outdoor units to BS units or indoor units connected 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.
  • Page 63 SI-95.BOOK Page 53 Friday, March 31, 2000 10:59 AM Si-95 Test Operation <Settings of switches on the PC board adaptor> ISS1 (“BOTH” is selected when demand control is carried out at the same time.) C / H BOTH C / H (SL302) ISS2 (SL303)
  • Page 64 SI-95.BOOK Page 54 Friday, March 31, 2000 10:59 AM Test Operation Si-95 1.5.2 Demand / low noise control Connecting control 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.
  • Page 65 SI-95.BOOK Page 55 Friday, March 31, 2000 10:59 AM Si-95 Test Operation <Control input specifications> Input signal Constant contact a Input current is approx. 12 - 24 VDC, 10 mA per contact. Use a micro-current contact for the relay contact. (Max.

  • Page 66: Cool/Heat Mode Switching

    Test Operation Si-95 Cool/Heat Mode Switching The VRV K Series heat recovery system offers the following 3 cool/heat modes. 1. Set cool/heat individually for all BS unit systems using the indoor unit remote controller. 2. Set cool/heat individually for all BS unit systems using the cool/heat select remote controller.
  • Page 67 SI-95.BOOK Page 57 Friday, March 31, 2000 10:59 AM Si-95 Test Operation 1.6.3 Set cool/heat individually for all BS unit systems using the cool/heat central remote controller. Install the "External control adaptor for outdoor unit" in BS unit. Test Operation Inverter K Series...

  • Page 68: Low Noise Operation

    SI-95.BOOK Page 58 Friday, March 31, 2000 10:59 AM Test Operation Si-95 Low Noise Operation By connecting the external contact input to the low noise input of the outdoor unit external control adaptor for outdoor unit (optional), you can save power and lower operating noise by 2 -3 dB. 1.

  • Page 69: Demand Control

    SI-95.BOOK Page 59 Friday, March 31, 2000 10:59 AM Si-95 Test Operation Demand Control By connecting the external contact input to the demand input of the outdoor unit external control adaptor (option), the compressor operating conditions can be controlled for reduced power consumption. 1.

  • Page 70: Wiring Check Operation

    SI-95.BOOK Page 60 Friday, March 31, 2000 10:59 AM Test Operation Si-95 Wiring Check Operation If within 12 hours of stopping cooling or heating, be sure to run all indoor units in the system you want to check in the fan mode for about 60 minutes in order to prevent mis-detection. Operation Method 1.

  • Page 71: Indoor Field Setting

    SI-95.BOOK Page 61 Friday, March 31, 2000 10:59 AM Si-95 Test Operation 1.10 Indoor Field Setting Making a field setting Field settings must be made by remote controller if optional accessories have been installed on the indoor unit, or if the indoor unit or HRV unit’s individual functions have been modified. 1.10.1 Wired Remote Controller 1.
  • Page 72 SI-95.BOOK Page 62 Friday, March 31, 2000 10:59 AM Test Operation Si-95 NOTES: 1. Settings are made simultaneously for the entire group, however, if you select the mode No. inside parentheses, you can also set by each individual unit. Setting changes however cannot be checked except in the individual mode for those in parentheses.

  • Page 73: Centralized Control Group No. Setting

    SI-95.BOOK Page 63 Friday, March 31, 2000 10:59 AM Si-95 Test Operation 1.11 Centralized Control Group No. Setting If carrying out centralized control by central remote controller or unified ON/OFF controller, group No. must be set for each group individually by remote controller. Group No.
  • Page 74 SI-95.BOOK Page 64 Friday, March 31, 2000 10:59 AM Test Operation Si-95 Group No. setting by wireless remote controller for centralized control 1. When in the normal mode, push button for 4 seconds or more, and operation then enters the “field set mode.”...

  • Page 75: Setting Of Master Remote Controller

    1 outdoor unit must be set as the master remote controller for Fan, Dry, Cool, Heat. (Operation mode can be switched by only the remote controller set as the master remote controller.) VRV K series Setting Method Preparations When turning the power supply on for the first time, the display of <CHANGEOVER UNDER CONTROL>...
  • Page 76 SI-95.BOOK Page 66 Friday, March 31, 2000 10:59 AM Test Operation Si-95 Operation Contents and Function Set to Cool/Heat/Auto If you set a Master remote controller The other remote controllers (Remote controller not displaying (Remote controllers displaying <CHANGEOVER UNDER CONTROL>) <CHANGEOVER UNDER CONTROL>) G switch to the operation mode set by the master remote controller.

  • Page 77: Remote Controller Self-Diagnosis Function

    SI-95.BOOK Page 67 Friday, March 31, 2000 10:59 AM Si-95 Test Operation 1.13 Remote Controller Self-Diagnosis Function The remote controller switches are equipped with a self diagnosis function so that more appropriate maintenance can be carried out. If a malfunction occurs during operation, the operation lamp, malfunction code and display of malfunctioning unit No.
  • Page 78 SI-95.BOOK Page 68 Friday, March 31, 2000 10:59 AM Test Operation Si-95 Operation lamp Inspection display Unit No. Malfunction code Malfunction contents Blinking Blinking Blinking Outdoor unit: Malfunction of thermistor (R2T) for heat exchanger (loose connection, disconnection, short circuit, failure) Blinking Outdoor unit: Malfunction of thermistor (R2T) for heat exchanger (loose connection, disconnection, short circuit,...
  • Page 79 SI-95.BOOK Page 69 Friday, March 31, 2000 10:59 AM Si-95 Test Operation Failure Diagnosis The indoor unit display section or the separately installed receiver unit’s operation lamp blinks for stop due by Wireless Remote to malfunction. You can diagnose the problem as described on the following page using the malfunction Controller code located by the method described below.

  • Page 80: Operation Of The Remote Controller's Inspection / Test

    SI-95.BOOK Page 70 Friday, March 31, 2000 10:59 AM Test Operation Si-95 1.14 Operation of the Remote Controller’s Inspection / Test Operation Button Unit Malfunction code Inspection Normal display (No display) Malfunction code blinks when a malfunction occurs. Inspection/test Push the button. operation Unit Example of capacity code display...

  • Page 81: Remote Controller Service Mode

    SI-95.BOOK Page 71 Friday, March 31, 2000 10:59 AM Si-95 Test Operation 1.15 Remote Controller Service Mode How to Enter the Service Mode Service Mode 1. Select the mode No. Operation Method Set the desired mode No. with the button. (Forced FAN ON “43”...
  • Page 82 SI-95.BOOK Page 72 Friday, March 31, 2000 10:59 AM Test Operation Si-95 Mode No Function Contents and operation method Remote controller display example 4 4 4 4 0 0 0 0 Malfunction hysteresis Display malfunction hysteresis. display The hysteresis No. can be changed with the Unit 1 button.

  • Page 83: Part 4 Troubleshooting Inverter K Series

    SI-95.BOOK Page 73 Friday, March 31, 2000 10:59 AM Si-95 Part 4 Troubleshooting Inverter K Series 1. Diagnosis by Malfunction Code.............75 1.1 Diagnosis by Malfunction Code ............. 75 1.2 Failure Diagnosis................... 76 2. Troubleshooting ..................77 2.1 Indoor Unit: Error of External Protection Device........77 2.2 Indoor Unit: PC Board Defect ..............
  • Page 84 SI-95.BOOK Page 74 Friday, March 31, 2000 10:59 AM Si-95 2.34 Address Duplication of Central Remote Controller......110 2.35 Refrigerant System not set, Incompatible Wiring/Piping ..... 111 2.36 Malfunction of System, Refrigerant System Address Undefined..112 3. Failure Diagnosis for Inverter System ..........113 3.1 Points of Diagnosis................

  • Page 85: Diagnosis By Malfunction Code

    SI-95.BOOK Page 75 Friday, March 31, 2000 10:59 AM Si-95 Diagnosis by Malfunction Code 1. Diagnosis by Malfunction Code Diagnosis by Malfunction Code Malfunction code Malfunction contents Fan operation Page Indoor unit: Error of external protection device Indoor unit: PC board defect Indoor unit: Malfunction of drain level control system (33H) Indoor unit: Fan motor (M1F) lock, overload Indoor unit: Malfunction of swing flap motor (M1S)

  • Page 86: Failure Diagnosis

    SI-95.BOOK Page 76 Friday, March 31, 2000 10:59 AM Diagnosis by Malfunction Code Si-95 Failure Diagnosis 1.2.1 Inverter Failure Diagnosis Malfunction code Malfunction contents Fan operation Page Outdoor unit: Malfunction of inverter radiating fin temperature rise Outdoor unit: Inverter instantaneous over-current Outdoor unit: Inverter electronic thermal, compressor overload Outdoor unit: Inverter stall prevention, compressor seizing Outdoor unit: Malfunction of transmission between inverter and...

  • Page 87: Troubleshooting

    SI-95.BOOK Page 77 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting 2. Troubleshooting Indoor Unit: Error of External Protection Device A A A A 0 0 0 0 Remote Controller Display I Actuation of external protection device Supposed Causes I Improper field set I Defect of indoor unit PC board Troubleshooting External...

  • Page 88: Indoor Unit: Pc Board Defect

    SI-95.BOOK Page 78 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 Indoor Unit: PC Board Defect A A A A 1 1 1 1 Remote Controller Display I Defect of indoor unit PC board Supposed Causes Troubleshooting Replace the indoor unit PC board. Troubleshooting Inverter K Series...

  • Page 89: Indoor Unit: Malfunction Of Drain Level Control System (33H)

    SI-95.BOOK Page 79 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting Indoor Unit: Malfunction of Drain Level Control System (33H) A A A A 3 3 3 3 Remote Controller Display I Defect of float switch or short circuit connector Supposed Causes I Defect of drain pump I Drain clogging, upward slope, etc.

  • Page 90: Indoor Unit: Fan Motor (M1F) Lock, Overload

    SI-95.BOOK Page 80 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 Indoor Unit: Fan Motor (M1F) Lock, Overload A A A A 6 6 6 6 Remote Controller Display I Fan motor lock Supposed Causes I Disconnected or faulty wiring between fan motor and PC board Troubleshooting Is the wiring from the fan...

  • Page 91: Indoor Unit: Malfunction Of Swing Flap Motor (M1S)

    SI-95.BOOK Page 81 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting Indoor Unit: Malfunction of Swing Flap Motor (M1S) A A A A 7 7 7 7 Remote Controller Display I Defect of swing motor Supposed Causes I Defect of connection cable (power supply and limit switch) I Defect of air flow direction adjusting flap-cam I Defect of indoor unit PC board Troubleshooting...

  • Page 92: Indoor Unit: Malfunction Of Moving Part Of Electronic Expansion Valve (Y1E)

    SI-95.BOOK Page 82 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 Indoor Unit: Malfunction of Moving Part of Electronic Expansion Valve (Y1E) A A A A 9 9 9 9 Remote Controller Display I Malfunction of moving part of electronic expansion valve Supposed Causes I Defect of indoor unit PC board I Defect of connecting cable...

  • Page 93: Indoor Unit: Drain Level Above Limit

    SI-95.BOOK Page 83 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting Indoor Unit: Drain Level above Limit A A A A F F F F Remote Controller Display I Humidifier unit (optional accessory) leaking Supposed Causes I Defect of drain pipe (upward slope, etc.) I Defect of indoor unit PC board Troubleshooting Field drain...

  • Page 94: Indoor Unit: Malfunction Of Capacity Determination Device

    SI-95.BOOK Page 84 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 Indoor Unit: Malfunction of Capacity Determination Device A A A A J J J J Remote controller display I You have forgotten to install the capacity setting adaptor. Supposed Causes I Defect of indoor unit PC board Troubleshooting The indoor...

  • Page 95: Indoor Unit: Malfunction Of Thermistor (R2T) For Liquid Pipe

    SI-95.BOOK Page 85 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting Indoor Unit: Malfunction of Thermistor (R2T) for Liquid Pipe C C C C 4 4 4 4 Remote Controller Display I Defect of thermistor (R2T) for liquid pipe Supposed Causes I Defect of indoor unit PC board Troubleshooting Connector...

  • Page 96: Indoor Unit: Malfunction Of Thermistor (R3T) For Gas Pipes

    SI-95.BOOK Page 86 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 2.10 Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes C C C C 5 5 5 5 Remote Controller Display I Defect of indoor unit thermistor (R3T) for gas pipe Supposed Causes I Defect of indoor unit PC board Troubleshooting...

  • Page 97: Indoor Unit: Malfunction Of Thermistor (R1T) For Air Inlet

    SI-95.BOOK Page 87 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting 2.11 Indoor Unit: Malfunction of Thermistor (R1T) for Air Inlet C C C C 9 9 9 9 Remote Controller Display I Defect of indoor unit thermistor (R1T) for air inlet Supposed Causes I Defect of indoor unit PC board Troubleshooting...

  • Page 98: Indoor Unit: Malfunction Of Thermostat Sensor In Remote Controller

    SI-95.BOOK Page 88 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 2.12 Indoor Unit: Malfunction of Thermostat Sensor in Remote Controller C C C C J J J J Remote Controller Display I Defect of remote controller thermistor Supposed Causes I Defect of remote controller PC board Troubleshooting The remote...

  • Page 99: Outdoor Unit: Actuation Of Safety Device

    SI-95.BOOK Page 89 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting 2.13 Outdoor Unit: Actuation of Safety Device E E E E 0 0 0 0 Remote Controller Display I Actuation of outdoor unit safety device Supposed Causes I Defect of outdoor unit PC board I Instantaneous power failure Troubleshooting Connector...

  • Page 100: Outdoor Unit: Pc Board Defect

    SI-95.BOOK Page 90 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 2.14 Outdoor Unit: PC Board Defect E E E E 1 1 1 1 Remote Controller Display I Defect of outdoor unit PC board (A1P) Supposed Causes Troubleshooting Replace outdoor unit PC board A1P. Troubleshooting Inverter K Series...

  • Page 101: Outdoor Unit: Actuation Of High Pressure Switch

    SI-95.BOOK Page 91 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting 2.15 Outdoor Unit: Actuation of High Pressure Switch E E E E 3 3 3 3 Remote Controller Display I Actuation of outdoor unit high pressure switch Supposed Causes I Defect of outdoor unit PC board (A1P) I Instantaneous power failure Troubleshooting...

  • Page 102: Outdoor Unit: Actuation Of Low Pressure Sensor

    SI-95.BOOK Page 92 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 2.16 Outdoor Unit: Actuation of Low Pressure Sensor E E E E 4 4 4 4 Remote Controller Display I Abnormal drop of low pressure (0 kg/cm Supposed Causes [0 MPa]) I Defect of low pressure sensor I Defect of outdoor unit PC board...

  • Page 103: Outdoor Unit: Malfunction Of Moving Part Of Electronic Expansion Valve (Y1E)

    Part4.fm Page 93 Friday, March 31, 2000 12:58 PM Si-95 Troubleshooting 2.17 Outdoor Unit: Malfunction of Moving Part of Electronic Expansion Valve (Y1E) E E E E 9 9 9 9 Remote Controller Display I Defect of moving part of electronic expansion valve Supposed Causes I Defect of outdoor unit PC board (A1P) I Defect of connecting cable...

  • Page 104: Outdoor Unit: Abnormal Discharge Pipe Temperature

    SI-95.BOOK Page 94 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 2.18 Outdoor Unit: Abnormal Discharge Pipe Temperature F F F F 3 3 3 3 Remote Controller Display I Abnormal discharge pipe temperature Supposed Causes I Defect of discharge pipe thermistor (R3-1T, R3-2T) I Defect of outdoor unit PC board I Discharge pipe thermistor wrong connection I Liquid injection solenoid valve wrong connection...

  • Page 105: Outdoor Unit: Malfunction Of Thermistor For Outdoor Air (R1T)

    SI-95.BOOK Page 95 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting 2.19 Outdoor Unit: Malfunction of Thermistor for Outdoor Air (R1T) H H H H 9 9 9 9 Remote Controller Display I Defect of thermistor (R1T) for outdoor unit outdoor air intake Supposed Causes I Defect of outdoor unit PC board (A1P) Troubleshooting...

  • Page 106: Outdoor Unit: Malfunction Of Discharge Pipe Thermistor (R3T)

    SI-95.BOOK Page 96 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 2.20 Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R3T) J J J J 3 3 3 3 Remote Controller Display I Defect of thermistor (R3-1T, R3-2T) for outdoor unit discharge pipe Supposed Causes I Defect of outdoor unit PC board (A1P) Troubleshooting...

  • Page 107: Outdoor Unit: Malfunction Of Thermistor (R4T) For Suction Pipe

    SI-95.BOOK Page 97 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting 2.21 Outdoor Unit: Malfunction of Thermistor (R4T) for Suction Pipe J J J J 5 5 5 5 Remote Controller Display I Defect of thermistor (R4-1T, R4-2T) for outdoor unit suction pipe Supposed Causes I Defect of outdoor unit PC board (A1P) Troubleshooting...

  • Page 108: Outdoor Unit: Malfunction Of Thermistor (R2T) For Heat Exchanger

    SI-95.BOOK Page 98 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 2.22 Outdoor Unit: Malfunction of Thermistor (R2T) for Heat Exchanger J J J J 6 6 6 6 Remote Controller Display I Defect of thermistor (R2-1T, R2-2T) for outdoor unit coil Supposed Causes I Defect of outdoor unit PC board (A1P) Troubleshooting...

  • Page 109: Outdoor Unit: Malfunction Of Discharge Pipe Pressure Sensor

    SI-95.BOOK Page 99 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting 2.23 Outdoor Unit: Malfunction of Discharge Pipe Pressure Sensor J J J J A A A A Remote Controller Display I Defect of high pressure sensor system Supposed Causes I Connection of low pressure sensor with wrong connection.

  • Page 110: Outdoor Unit: Malfunction Of Suction Pipe Pressure Sensor

    SI-95.BOOK Page 100 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 2.24 Outdoor Unit: Malfunction of Suction Pipe Pressure Sensor J J J J C C C C Remote Controller Display I Defect of low pressure sensor system Supposed Causes I Connection of high pressure sensor with wrong connection.

  • Page 111: Outdoor Unit: Malfunction Of Oil Temperature Thermistor (R5T)

    SI-95.BOOK Page 101 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting 2.25 Outdoor Unit: Malfunction of Oil Temperature Thermistor (R5T) J J J J H H H H Remote Controller Display I Defect of oil temperature thermistor (R5T) Supposed Causes I Defect of outdoor unit PC board (A1P) Troubleshooting Is the connector...

  • Page 112: Low Pressure Drop Due To Refrigerant Shortage Or Electronic Expansion Valve Failure

    SI-95.BOOK Page 102 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 2.26 Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure U U U U 0 0 0 0 Remote Controller Display I Refrigerant shortage or refrigerant system clogging (incorrect piping) Supposed Causes I Defect of pressure sensor I Defect of outdoor unit PC board...

  • Page 113: Negative Phase, Open Phase

    SI-95.BOOK Page 103 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting 2.27 Negative Phase, Open Phase U U U U 1 1 1 1 Remote Controller Display I Power supply negative phase Supposed Causes I Power supply open phase I Defect of outdoor PC board A1P Troubleshooting There is an open phase at...

  • Page 114: Malfunction Of Transmission Between Indoor Units

    SI-95.BOOK Page 104 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 2.28 Malfunction of Transmission Between Indoor Units U U U U 4 4 4 4 Remote Controller Display I Indoor to outdoor,outdoor to outdoor crossover wiring, disconnection or short circuit Supposed Causes I Outdoor unit power supply is OFF I System address doesn’t match...

  • Page 115: Malfunction Of Transmission Between Remote Controller And Indoor Unit

    SI-95.BOOK Page 105 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting 2.29 Malfunction of Transmission Between Remote Controller and Indoor Unit U U U U 5 5 5 5 Remote Controller Display I Malfunction of indoor unit remote controller transmission Supposed Causes I Connection of two “main”...

  • Page 116: Malfunction Of Transmission Between Outdoor Units

    SI-95.BOOK Page 106 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 2.30 Malfunction of Transmission Between Outdoor Units U U U U 7 7 7 7 Remote Controller Display I Improper connection of transmission wiring between outdoor unit and outdoor unit outside control Supposed Causes adaptor I Improper cool/heat selection...

  • Page 117: Malfunction Of Transmission Between Main And Sub Remote Controllers

    SI-95.BOOK Page 107 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting 2.31 Malfunction of Transmission Between MAIN and SUB Remote Controllers U U U U 8 8 8 8 Remote Controller Display I Malfunction of transmission between main and sub remote controller Supposed Causes I Connection between sub remote controllers I Defect of remote controller PC board...

  • Page 118: Malfunction Of Transmission Between Indoor And Outdoor Units In The Same System

    SI-95.BOOK Page 108 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 2.32 Malfunction of Transmission Between Indoor and Outdoor Units in the Same System U U U U 9 9 9 9 Remote Controller Display I Malfunction of transmission between indoor and outdoor of other system Supposed Causes I Malfunction of electronic expansion valve in indoor unit of other system I Defect of PC board of indoor unit in other system...

  • Page 119: Excessive Number Of Indoor Units

    SI-95.BOOK Page 109 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting 2.33 Excessive Number of Indoor Units U U U U A A A A Remote Controller Display I Excess of connected indoor units Supposed Causes I Defect of outdoor unit PC board (A1P) Troubleshooting The total of indoor units...

  • Page 120: Address Duplication Of Central Remote Controller

    SI-95.BOOK Page 110 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 2.34 Address Duplication of Central Remote Controller U U U U C C C C Remote Controller Display I Address duplication of central remote controller Supposed Causes I Defect of indoor unit PC board Troubleshooting Optional controllers for...

  • Page 121: Refrigerant System Not Set, Incompatible Wiring/Piping

    SI-95.BOOK Page 111 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting 2.35 Refrigerant System not set, Incompatible Wiring/Piping U U U U F F F F Remote Controller Display I Improper connection of transmission wiring between indoor-outdoor unit or outdoor-outdoor unit Supposed Causes I Failure to execute wiring check operation I Defect of indoor unit PC board...

  • Page 122: Malfunction Of System, Refrigerant System Address Undefined

    SI-95.BOOK Page 112 Friday, March 31, 2000 10:59 AM Troubleshooting Si-95 2.36 Malfunction of System, Refrigerant System Address Undefined U U U U H H H H Remote Controller Display I Improper connection of transmission wiring between indoor-outdoor unit or outdoor-outdoor unit Supposed Causes I Defect of indoor unit PC board I Defect of outdoor unit PC board (A1P)

  • Page 123: Failure Diagnosis For Inverter System

    SI-95.BOOK Page 113 Friday, March 31, 2000 10:59 AM Si-95 Failure Diagnosis for Inverter System 3. Failure Diagnosis for Inverter System Points of Diagnosis The main causes for each malfunction code are given in the table below. (For details refer to the next page and those following.) : Failure is probable 8 : Failure is possible...

  • Page 124: How To Use The Monitor Switch On The Inverter Pc Board

    SI-95.BOOK Page 114 Friday, March 31, 2000 10:59 AM Failure Diagnosis for Inverter System Si-95 How to use the Monitor Switch on the Inverter PC Board The monitor lets you know the contents of the latest stop due to malfunction by LED display on the inverter PC Board.

  • Page 125: Troubleshooting (Inverter)

    SI-95.BOOK Page 115 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting (Inverter) 4. Troubleshooting (Inverter) Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise L L L L 4 4 4 4 Remote Controller Display I Actuation of fin thermal (Actuates at min. 90˚C and resets at max. 80˚C) Supposed Causes I Defect of inverter PC board I Defect of fin thermistor...

  • Page 126: Outdoor Unit: Inverter Instantaneous Over-Current

    SI-95.BOOK Page 116 Friday, March 31, 2000 10:59 AM Troubleshooting (Inverter) Si-95 Outdoor Unit: Inverter Instantaneous Over-Current L L L L 5 5 5 5 Remote Controller Display I Defect of compressor coil (disconnected, defective insulation) Supposed Causes I Compressor start-up malfunction (mechanical lock) I Defect of inverter unit Troubleshooting Compressor inspection...

  • Page 127: Outdoor Unit: Inverter Thermostat Sensor, Compressor Overload

    SI-95.BOOK Page 117 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting (Inverter) Outdoor Unit: Inverter Thermostat Sensor, Compressor Overload L L L L 8 8 8 8 Remote Controller Display I Compressor overload Supposed Causes I Compressor coil disconnected I Defect of inverter unit Troubleshooting Output current check The secondary...

  • Page 128: Outdoor Unit: Inverter Stall Prevention, Compressor Seized

    SI-95.BOOK Page 118 Friday, March 31, 2000 10:59 AM Troubleshooting (Inverter) Si-95 Outdoor Unit: Inverter Stall Prevention, Compressor Seized L L L L 9 9 9 9 Remote Controller Display I Defect of compressor Supposed Causes I Pressure differential start I Defect of inverter unit Troubleshooting difference...

  • Page 129: Outdoor Unit: Malfunction Of Transmission Between Inverter And Control Pc Board

    SI-95.BOOK Page 119 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting (Inverter) Outdoor Unit: Malfunction of Transmission between Inverter and Control PC Board L L L L C C C C Remote Controller Display I Malfunction of connection between the inverter unit and outdoor unit PC board Supposed Causes I Defect of outdoor unit PC board (transmission section) I Defect of inverter unit...

  • Page 130: Power Supply Insufficient Or Instantaneous Failure

    SI-95.BOOK Page 120 Friday, March 31, 2000 10:59 AM Troubleshooting (Inverter) Si-95 Power Supply Insufficient or Instantaneous Failure U U U U 2 2 2 2 Remote Controller Display I Power supply insufficient Supposed Causes I Instantaneous power failure I Lack of phase I Defect of inverter unit I Defect of outdoor PC board I Defect of K1M.

  • Page 131: Outdoor Unit: Malfunction Of Inverter Radiating Fin Temperature Rise Sensor

    Be sure to explain to the user that there Give the user a copy of "notification of inspection results"and leave it up to is a "power supply imbalance" for him to improve the imbalance. which DAIKIN is not responsible. (VF069) Troubleshooting Inverter K Series...

  • Page 132: Outdoor Unit: Inverter Over-Ripple Protection

    SI-95.BOOK Page 122 Friday, March 31, 2000 10:59 AM Troubleshooting (Inverter) Si-95 Outdoor Unit: Inverter Over-Ripple Protection P P P P 4 4 4 4 Remote Controller Display I Defect of radiator fin temperature sensor Supposed Causes I Defect of inverter unit Troubleshooting Turn on again after letting 30...

  • Page 133: Troubleshooting (Op: Central Remote Controller)

    SI-95.BOOK Page 123 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting (OP: Central Remote Controller) 5. Troubleshooting (OP: Central Remote Controller) Malfunction of Transmission between Central Remote Controller and Indoor Unit U U U U E E E E Remote Controller Display I Malfunction of transmission between optional controllers for centralized control and indoor unit Supposed Causes...

  • Page 134: Pc Board Defect

    SI-95.BOOK Page 124 Friday, March 31, 2000 10:59 AM Troubleshooting (OP: Central Remote Controller) Si-95 PC Board Defect M M M M 1 1 1 1 Remote Controller Display I Defect of central remote controller PC board Supposed Causes Troubleshooting Replace the central remote controller PC board.

  • Page 135: Malfunction Of Transmission Between Optional Controllers For Centralized Control

    SI-95.BOOK Page 125 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting (OP: Central Remote Controller) Malfunction of Transmission between Optional Controllers for Centralized Control M M M M 8 8 8 8 Remote Controller Display I Malfunction of transmission between optional controllers for centralized control Supposed Causes I Defect of PC board of optional controllers for centralized control Troubleshooting...

  • Page 136: Improper Combination Of Optional Controllers For Centralized Control

    SI-95.BOOK Page 126 Friday, March 31, 2000 10:59 AM Troubleshooting (OP: Central Remote Controller) Si-95 Improper Combination of Optional Controllers for Centralized Control M M M M A A A A Remote Controller Display I Improper combination of optional controllers for centralized control Supposed Causes I More than one master controller is connected I Defect of PC board of optional controller for centralized control...

  • Page 137: Address Duplication, Improper Setting

    SI-95.BOOK Page 127 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting (OP: Central Remote Controller) Address Duplication, Improper Setting M M M M C C C C Remote Controller Display I Address duplication of central remote controller Supposed Causes Troubleshooting two or more central Disconnect all central remote remote controllers...

  • Page 138: Troubleshooting (Op: Schedule Timer)

    SI-95.BOOK Page 128 Friday, March 31, 2000 10:59 AM Troubleshooting (OP: Schedule Timer) Si-95 6. Troubleshooting (OP: Schedule Timer) Malfunction of Transmission between Central Remote Controller and Indoor Unit U U U U E E E E Remote Controller Display I Malfunction of transmission between central remote controller and indoor unit Supposed Causes I Disconnection of connector for setting master controller (or individual/combined switching connector)

  • Page 139: Pc Board Defect

    SI-95.BOOK Page 129 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting (OP: Schedule Timer) PC Board Defect M M M M 1 1 1 1 Remote Controller Display I Defect of schedule timer PC board Supposed Causes Troubleshooting Replace the schedule timer PC board. Troubleshooting Inverter K Series...

  • Page 140: Malfunction Of Transmission Between Optional Controllers For Centralized Control

    SI-95.BOOK Page 130 Friday, March 31, 2000 10:59 AM Troubleshooting (OP: Schedule Timer) Si-95 Malfunction of Transmission between Optional Controllers for Centralized Control M M M M 8 8 8 8 Remote Controller Display I Malfunction of transmission between optional controllers for centralized control Supposed Causes I Defect of PC board of optional controllers for centralized control Troubleshooting...

  • Page 141: Improper Combination Of Optional Controllers For Centralized Control

    SI-95.BOOK Page 131 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting (OP: Schedule Timer) Improper Combination of Optional Controllers for Centralized Control M M M M A A A A Remote Controller Display I Improper combination of optional controllers for centralized control Supposed Causes I More than one master controller is connected.

  • Page 142: Address Duplication, Improper Setting

    SI-95.BOOK Page 132 Friday, March 31, 2000 10:59 AM Troubleshooting (OP: Schedule Timer) Si-95 Address Duplication, Improper Setting M M M M C C C C Remote Controller Display I Address duplication of optional controller for centralized control Supposed Causes Troubleshooting Are two or more schedule timers...

  • Page 143: Troubleshooting (Op: Unified On/Off Controller)

    SI-95.BOOK Page 133 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting (OP: Unified ON/OFF Controller) 7. Troubleshooting (OP: Unified ON/OFF Controller) Operation Lamp Blinks Remote Controller Operation lamp blinks Display I Malfunction of transmission between optional controller and indoor unit Suppposed Causes I Connector for setting master controller is disconnected I Defect of unified ON/OFF controller...

  • Page 144: Display "Under Host Computer Integrate Control" Blinks

    SI-95.BOOK Page 134 Friday, March 31, 2000 10:59 AM Troubleshooting (OP: Unified ON/OFF Controller) Si-95 Display “Under Host Computer Integrate Control” Blinks (Repeats Single Blink) Remote Controller “under host computer integrated control” (Repeats single blink) Display I Address duplication of central remote controller Supposed Causes I Improper combination of optional controllers for centralized control I Connection of more than one master controller...
  • Page 145 SI-95.BOOK Page 135 Friday, March 31, 2000 10:59 AM Si-95 Troubleshooting (OP: Unified ON/OFF Controller) Cannot be used in combination with a wiring adaptor for electrical the wiring adaptor for appendices. Remove the wiring electrical appendices adaptor for electrical appendices connected? and reset the power supply for all optional controllers for centralized...

  • Page 146: Display "Under Host Computer Integrate Control" Blinks (Repeats Double Blink)

    SI-95.BOOK Page 136 Friday, March 31, 2000 10:59 AM Troubleshooting (OP: Unified ON/OFF Controller) Si-95 Display “Under Host Computer Integrate Control” Blinks (Repeats Double Blink) Remote Controller “under host computer integrated control” (Repeats double blink) Display I Central control address (group No.) is not set for indoor unit. Supposed Causes I Improper address setting I Improper wiring of transmission wiring...

  • Page 147: Part 5 Appendix

    Part5TOC.fm Page 137 Tuesday, April 11, 2000 2:39 PM Si-95 Part 5 Appendix 1. Characteristics ..................138 1.1 Thermistor Resistance / Temperature Characteristics ......138 1.2 Pressure Sensor Voltage Output / Detected Pressure Characteristics..................140 2. Method of Replacing The Inverter’s Power Transistors and Diode Modules ................141 2.1 Method of Replacing The Inverter’s Power Transistors and Diode Modules................

  • Page 148: Characteristics

    SI-95.BOOK Page 138 Friday, March 31, 2000 10:59 AM Characteristics Si-95 1. Characteristics Thermistor Resistance / Temperature Characteristics Indoor unit For air suction For liquid pipe For gas pipe For outdoor air Outdoor unit For coil R2T (R2-1T, R2-2T) For suction pipe R4T (R4-1T, R4-2T) For oil (kΩ)
  • Page 149 SI-95.BOOK Page 139 Friday, March 31, 2000 10:59 AM Si-95 Characteristics Outdoor Thermistors for Discharge Pipe (R3T, R3-1T, R3-2T) (kΩ)) T˚C T˚C T˚C 640.44 624.65 72.32 70.96 13.35 13.15 609.31 594.43 69.64 68.34 12.95 12.76 579.96 565.78 67.06 65.82 12.57 12.38 552.00 538.63...

  • Page 150: Pressure Sensor Voltage Output / Detected Pressure Characteristics

    SI-95.BOOK Page 140 Friday, March 31, 2000 10:59 AM Characteristics Si-95 Pressure Sensor Voltage Output / Detected Pressure Characteristics Appendix...

  • Page 151: Method Of Replacing The Inverter's Power Transistors And Diode Modules

    SI-95.BOOK Page 141 Friday, March 31, 2000 10:59 AM Si-95 Method of Replacing The Inverter’s Power Transistors and Diode Modules 2. Method of Replacing The Inverter’s Power Transistors and Diode Modules Method of Replacing The Inverter’s Power Transistors and Diode Modules [Decision according to continuity check by analog tester] I Before checking, disconnect the electric wiring connected to the power transistor and diode module.

  • Page 152: Precaution

    SI-95.BOOK Page 142 Friday, March 31, 2000 10:59 AM Precaution Si-95 3. Precaution PC Boards and Remote Controller’s Mode No. 3.1.1 Precautions When Replacing K Series PC Boards If you replace the indoor or outside unit PC board, push and hold the RESET button on the outdoor unit PC Board for 5 seconds.

  • Page 153: Typical Wiring Mistakes

    SI-95.BOOK Page 143 Friday, March 31, 2000 10:59 AM Si-95 Typical Wiring Mistakes 4. Typical Wiring Mistakes Typical Wiring Mistakes One of the indoor units is connected to outdoor-to- outdoor transmission terminals Installation / test operation Indoor unit 1 Normal Indoor unit 2 UF malfunction Other than above Indoor unit 1 Normal...
  • Page 154 SI-95.BOOK Page 144 Friday, March 31, 2000 10:59 AM Typical Wiring Mistakes Si-95 All Indoor Units Connected to the Outdoor-to- Outdoor Unit Terminal Installation / test operation Indoor unit 1 UF malfunction Indoor unit 2 Other than above Indoor unit 1 U4 malfunction or no malfunction display Indoor unit 2...
  • Page 155 SI-95.BOOK Page 145 Friday, March 31, 2000 10:59 AM Si-95 Typical Wiring Mistakes 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 Appendix...
  • Page 156 SI-95.BOOK Page 146 Friday, March 31, 2000 10:59 AM Typical Wiring Mistakes Si-95 Extended Indoor Unit 10 min. after turning power on Indoor unit 1 Normal Indoor unit 2 U4 malfunction ↓ Push and hold RESET button for 5 sec. ↓...
  • Page 157 SI-95.BOOK Page 147 Friday, March 31, 2000 10:59 AM Si-95 Typical Wiring Mistakes One of the indoor units of outdoor unit 1 is connected to outdoor-to- outdoor transmission terminals Installation / test operation Indoor unit 1 Normal Indoor unit 2 UF malfunction Indoor unit 3 Normal Indoor unit 4 Normal Other than above...
  • Page 158 SI-95.BOOK Page 148 Friday, March 31, 2000 10:59 AM Typical Wiring Mistakes Si-95 The indoor-to- outdoor terminal of outdoor unit 1 and the outdoor-to- outdoor terminal of outdoor unit 2 are connected Indoor unit 1 Normal Indoor unit 2 Normal Indoor unit 3 UH malfunction Indoor unit 4...
  • Page 159 SI-95.BOOK Page 149 Friday, March 31, 2000 10:59 AM Si-95 Typical Wiring Mistakes R22 model 1. When R22 indoor unit is connected to HFC (R407C) system connection abnormalities Reason : Operation disallowed due to insufficient pressure proof in R22 indoor unit. 2.

  • Page 160: Piping Diagram

    Part5.fm Page 150 Tuesday, April 11, 2000 2:09 PM Piping Diagram Si-95 5. Piping Diagram Heat Recovery Series Outdoor Unit RSEY8·10KLY1(E) 4D018336 Appendix...

  • Page 161: Bs Unit

    Part5.fm Page 151 Wednesday, April 12, 2000 9:40 AM Si-95 Piping Diagram BS Unit BSV100KLV1 4D014497A BSV160KLV1 4D014498A Appendix...
  • Page 162 Part5.fm Page 152 Wednesday, April 12, 2000 9:40 AM Piping Diagram Si-95 BSV250KLV1 4D014499 Appendix...

  • Page 163: Wiring Diagram

    SI-95.BOOK Page 153 Friday, March 31, 2000 10:59 AM Si-95 Wiring Diagram 6. Wiring Diagram Heat Recovery Series Outdoor Unit RSEY8·10KLY1(E) Appendix...

  • Page 164: Bs Unit

    SI-95.BOOK Page 154 Friday, March 31, 2000 10:59 AM Wiring Diagram Si-95 BS Unit BSV100·160·250KLV1 Appendix...

  • Page 165: Index

    Si-95IX.fm Page i Tuesday, April 11, 2000 3:57 PM Si-95 Index Fan Motor (M1F) Lock, Overload ......80 Flow of Refrigerant in Each Operation Mode ..10 A0 ................77 Freeze Prevention ..........39 A1 ................78 Frequency Limit Control A3 ................79 by Pressure Equalization .......
  • Page 166 Si-95IX.fm Page ii Tuesday, April 11, 2000 3:57 PM Si-95 Malfunction of Drain Level Control System (33H) ..79 Pressure Equalization Control ....... 23 Malfunction of Inverter Radiating Fin Pressure Sensor Voltage Output / Detected Temperature Rise .........115 Pressure Characteristics ......140 Malfunction of Inverter Radiating Fin Pump Down Residual Operation ......
  • Page 167 SI-95.BOOK Page iii Friday, March 31, 2000 10:59 AM Si-95 Display “Under Host Computer Integrate Control” Blinks (Repeats Single Blink) ...134 Operation Lamp Blinks ........133 Typical Wiring Mistakes ........143 U0 .................102 U1 .................103 U2 .................120 U4 .................104 U5 .................105 U7 .................106 U8 .................107 U9 .................108 UA ................109...
  • Page 168 SI-95.BOOK Page iv Friday, March 31, 2000 10:59 AM Si-95 Index...

  • Page 169: Drawings & Flow Charts

    SI-95.BOOK Page v Friday, March 31, 2000 10:59 AM Si-95 Drawings & Flow Charts Freeze Prevention ..........39 Abnormal Discharge Pipe Temperature ....94 Actuation of High Pressure Switch ......91 Gas Depletion Alarm Actuation of Low Pressure Sensor ......92 When cooling ..........33 Actuation of Safety Device ........89 When heating ..........
  • Page 170 Si-95IOM.fm Page vi Tuesday, April 11, 2000 3:58 PM Si-95 Malfunction of Thermostat Sensor Set cool/heat individually for all BS unit systems using in Remote Controller ........88 the indoor unit remote controller ....56 Malfunction of Transmission between Central Setting Mode 1 ............46 Remote Controller and Indoor Unit ..

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