Airwell DLF 18 DCI Technical Manual
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Airwell DLF 18 DCI Technical Manual

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ECO DESIGN 2014
DLF DC Inverter Series
REFRIGERANT
SM DLF 1-A.1 GB
Indoor Units
DLF 18 DCI
DLF 24 DCI
HEAT PUMP
Outdoor Units
YBDE018-H11
YBDE024-H11
R410A
– 201

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Summary of Contents for Airwell DLF 18 DCI

  • Page 1 ECO DESIGN 2014 DLF DC Inverter Series Indoor Units Outdoor Units DLF 18 DCI YBDE018-H11 DLF 24 DCI YBDE024-H11 REFRIGERANT R410A HEAT PUMP – 201 SM DLF 1-A.1 GB...
  • Page 2 LIST OF EFFECTIVE PAGES LIST OF EFFECTIVE PAGES Note: Changes in the pages are indicated by a “Revision#” in the footer of each effected page (when none indicates no changes in the relevant page). All pages in the following list represent effected/ non effected pages divided by chapters.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Table of Contents INTRODUCTION ....................1-1 PRODUCT DATA SHEET ..................2-1 RATING CONDITIONS ..................3-1 OUTLINE DIMENSIONS ..................4-1 PERFORMANCE DATA & PRESSURE CURVES ..........5-1 AIRFLOW CURVES ....................6-1 SOUND LEVEL CHARACTERISTICS ..............7-1 ELECTRICAL DATA ....................8-1 WIRING DIAGRAMS .....................9-1 10. REFRIGERATION DIAGRAMS ................10-1 11.

  • Page 4: Introduction

    INTRODUCTION INTRODUCTION General The new DLF DC INVERTER split unit range comprises the following RC (heat pump) models: ‡ '/F  ‡ '/F  Remote control compatibility The units are compatible with remote controls RC3, RC4, RC7, RC8 Inverter description 8QOLNH VWDQGDUG XQLWV ¿[ 530 WKDW DUH VHOHFWHG DFFRUGLQJ WR WKHLU QRPLQDO FDSDFLW\ WR RYHUFRPH WKH PD[LPXP UHTXLUHG ORDG '&...

  • Page 5: Appendix A

    INTRODUCTION lndoor Unit The DLF DCI indoor unit is a low silhouette ducted unit and low noise level (up to 29 DBA), can be easily fitted to many type of residential and commercials applications. • Low silhouette units 200mm height. •...
  • Page 6 INTRODUCTION Inbox Documentation Each unit includes its own installation and operation manuals. Matching Table OUTDOOR UNITS INDOOR UNITS OUTDOOR 02'(/ DLF18 DLF24 <%'(+ ¥ <%'(+ ¥ SM DLF 1-A.1 GB CONTENT...

  • Page 7: Rating Conditions

    PRODUCT DATA SHEET PRODUCT DATA SHEET DLF 18 DCI Model Indoor Unit AWSI-DLF018 –N11 Model Outdoor Unit AWAU-YBDE018-H11 Installation Method DUCTED Heating Characteristics Units Cooling Average Warmer Pdesign SEER / SCOP Energy efficiency class Annual energy consumption 2549 1488 Tbiv 1.5÷5.8...
  • Page 8 PRODUCT DATA SHEET DLF 24 DCI Model Indoor Unit AWSI-DLF024 –N11 Model Outdoor Unit AWAU-YBDE024-H11 Installation Method DUCTED Heating i t s s t i Average Warmer i c i 1099 4019 1920 Tbiv Capacity Range ÷ n 1.5÷7.5 1.5÷8.8 / e l i t a &...

  • Page 9: Operating Limits

    RATING CONDITIONS RATING CONDITIONS Standard conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN 14511. Cooling: Indoor: C DB 19 C WB Outdoor: 35 C DB Heating: Indoor: C DB Outdoor: 7 C DB 6 C WB Operating Limits Indoor...

  • Page 10: Outline Dimensions

    OUTLINE DIMENSIONS OUTLINE DIMENSIONS Indoor Unit: DLF 18, 24 629 (640 With air filter) Nominal Capacity 5.0 kW 696 790 7.0 kW 1050 996 1090 SM DLF 1-A.1 GB CONTENT...
  • Page 11 OUTLINE DIMENSIONS Outdoor Unit: YBDE 018/024 SM DLF 1-A.1 GB...

  • Page 12: Performance Data & Pressure Curves

    PERFORMANCE DATA & PRESSURE CURVES PERFORMANCE DATA & PRESSURE CURVES DLF 18 DCI - H11 5.1.1 Cooling Capacity (kW) ID COIL ENTERING AIR DB/WB TEMPERATURE [ OD COIL ENTERING AIR DB DATA 27/19 TEMPERATURE [ 80 - 110 % of nominal...
  • Page 13 PERFORMANCE DATA & PRESSURE CURVES 5.1.2 Heating ID COIL ENTERING AIR DB OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [°C] 3.06 2.84 2.63 -15/-16 0.79 0.87 0.95 3.40 3.19 2.97 -10/-12 0.95 1.04 1.12 3.66 3.45 3.23 -7/-8 1.08 1.16 1.24 3.79 3.58...
  • Page 14 PERFORMANCE DATA & PRESSURE CURVES DLF 24 DCI - H11 5.2.1 Cooling Capacity (kW) ID COIL ENTERING AIR DB/WB TEMPERATURE [ OD COIL ENTERING AIR DB DATA 27/19 TEMPERATURE [ 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range) 25 - 50 % of nominal 6.77...
  • Page 15 PERFORMANCE DATA & PRESSURE CURVES 5.2.2 Heating ID COIL ENTERING AIR DB TEMPERATURE [°C] OD COIL ENTERIN G AIR DB/WB DATA TEMPER ATURE [°C] 4.77 4.44 4.11 -15/-16 1.06 1.16 1.27 5.31 4.98 4.65 -10/-12 1.27 1.38 1.49 5.72 5.39 5.05 -7/-8 1.44...
  • Page 16 PERFORMANCE DATA & PRESSURE CURVES Capacity Correction Factor for Tubing Length 5.3.1 Cooling 1.05 1.00 0.95 0.90 0.85 0.80 0.75 Tubing Lenght [m] 5.3.2 Heating 1.05 1.00 0.95 0.90 0.85 0.80 0.75 Tubing Lenght [m] SM DLF 1-A.1 GB...
  • Page 17 PERFORMANCE DATA & PRESSURE CURVES Pressure Correction Factor for Tubing Length 5.4.1 Cooling Pressure vs Tubing Lenght (COOLING) 1.02 1.02 1.00 1.00 Cooling Discharge Pressure 0.98 0.98 0.96 0.96 0.94 0.94 Cooling Suction Pressure 0.92 0.92 0.90 0.90 0.88 0.88 0.86 0.86 Total Tubing Length [m]...
  • Page 18 PERFORMANCE DATA & PRESSURE CURVES Capacity Correction Factors (Cooling) Outdoor Temperature DB [deg C] Capacity Correction Factors (Heating) Outdoor WB Temperature [deg C] SM DLF 1-A.1 GB...

  • Page 19: Airflow Curves

    AIRFLOW CURVES AIRFLOW CURVES Model: DLF 18 DCI 5KW AIR FLOW CHART 10PA 20Pa 40PA High SHigh SMed Slow 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 M³ /HR SM DLF 1-A.1 GB...
  • Page 20 AIRFLOW CURVES Model: DLF 24 DCI 7.0KW AIR FLOW CHART 10PA 20PA 40PA High SHigh SMed Slow 1000 1050 1100 1150 1200 1250 1300 M³ /HR DLF UNITS RANGE AIR FLOW CORRECTION FACTORS (at nominal rating conditions — Test mode). Air Flow Rate [% of nominal] 100% 0.88...

  • Page 21: Sound Level Characteristics

    SOUND LEVEL CHARACTERISTICS SOUND LEVEL CHARACTERISTICS Sound Pressure Level Figure 1 Soud Pressure Level Spectrum (Measured as Figure 1) DLF 18 DLF 24 FAN SPEED LINE SM DLF 1-A.1 GB CONTENT...
  • Page 22 SOUND LEVEL CHARACTERISTICS Outdoor Units 1.0 m Center for Unit Figure 2 Sound Pressure Level Spectrum ( Measured as Figure 2) YBDE 018/024 - H11 Cooling YBDE 018/024 - H11 Heating 1RLVH VSHFWUXP 1& &XUYHV 1RLVH VSHFWUXP 1& &XUYHV 1& 1& 1& 1&...

  • Page 23: Electrical Data

    ELECTRICAL DATA ELECTRICAL DATA Single Phase Units MODEL DLF 18 DLF 24 Power Supply 1 PH ,220-240VAC ,50HZ Connected to Indoor or Outdoor Outdoor Maximum Current 45 A Inrush Current 15 A Starting Current Circuit Breaker 20 A Power supply can be connected in both ways: To outdoor unit to supply both outdoor and indoor unit.

  • Page 24: Wiring Diagrams

    WIRING DIAGRAMS WIRING DIAGRAMS Indoor Unit: DLF 18/24 DCI Outdoor Unit: YBDE 18/24 - H11 YEL/GRN CHOCK OFAN COMP REVERSE COIL VALVE Optional P104 P106 P503 P501 P201 P202 P604 P804 P803 P801 P802 P108 P109 P105 P502 CN802 FUSE Outdoor Unit Controller CN801 FLASH...
  • Page 25 WIRING DIAGRAMS 1PH UNITS POWER SUPPLY TO INDOOR (DLF 18) (5.0 kW ‫)יחידת‬ C N L Indoor Unit Power Supply Cable Outdoor Unit Interconnecting Cable (4x2.5mm Wireless Remote Control Display Unit Display Connector Power Breaker (*by installer) * The power breaker must be of type that disconnects all poles with 3 mm contact opening. ** Use shielded cable and connect the shield to earth point SM DLF 1-A.1 GB...
  • Page 26 WIRING DIAGRAMS 1PH UNITS POWER SUPPLY TO OUTDOOR (DLF 18,24) C N L Indoor Unit Power Supply Cable Main Power Breaker Outdoor Unit Interconnecting Cable (4x2.5mm Wireless Remote Control Display Unit Display Connector Power Breaker (*by installer) * The power breaker must be of type that disconnects all poles with 3 mm contact opening. ** Use shielded cable and connect the shield to earth point SM DLF 1-A.1 GB...

  • Page 27: Refrigeration Diagrams

    REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS 10.1 Heat Pump Models (Optional) (Optional) Oil cappilary tube 2.5mmx0.6mmx1000mm Line accumulator Compressor separator (Optional) (Optional) Gas valve 4 Way valve Flared Connection Filter Liquid valve Outdoor heat exchanger OUTDOOR UNIT INDOOR UNIT Refrigerant flow (Cooling) Refrigerant flow (Heating) SM DLF 1-A.1GB 10-1...

  • Page 28: Tubing Connections

    TUBING CONNECTIONS TUBING CONNECTIONS TUBE (Inch) ¼” ´ ½” ´ ¾” TORQUE (Nm) Flare Nuts 15-18 40-45 60-65 70-75 80-85 Valve Cap 13-20 13-20 18-25 18-25 40-50 Service Port Cap 11-13 11-13 11-13 11-13 11-13 Valve Protection Cap-end Refrigerant Valve Port (use Allen wrench to open/close) Valve Protection Cap Refrigerant Valve Service Port Cap...

  • Page 29: Control System

    CONTROL SYSTEM CONTROL SYSTEM 12.1 Abbreviations Abbreviation 'H¿QLWLRQ Air Conditioner Building Management System Compressor Current Crankcase Heater COMP Compressor Compressor Top Temperature sensor DC Inverter DMSMP Dummy Multi Split multi Pipe – Control board E²PROM, EEP Erase Enable Programmable Read Only Memory Electronic Expansion Valve Heating Element Human Machine Interface...

  • Page 30: Product Overview

    CONTROL SYSTEM 12.2 Product Overview 12.2.1 Block Diagram Line Filter Compressor 230VAC Driver 400VAC Speed AC Current DC Current Fault codes Inrush Driver Control Control ODU Controller OFAN Control OFAN Display IDU Controller Control Communication IFAN Temp. 230V Inputs Control contacts Inputs Outputs...
  • Page 31 CONTROL SYSTEM 12.2.2 Controller overview 12.2.2.1 Main Controller Indoor Unit DLF 18,24 SM DLF 1-A.1 GB 12-3...
  • Page 32 CONTROL SYSTEM 12.2.2.3 Main Controller Outdoor Unit YBDE018/024 12.2.2.4 Main Controller Outdoor Unit YBDE030 SM DLF 1-A.1 GB 12-4...
  • Page 33 CONTROL SYSTEM 12.2.2.5 Display Board Display Display Board PCB Legend Name Plate Cooling LED Heating LED Push Button (Mode) Timer LED STBY LED Operation LED IR Receiver Buzzer 10. Display Port Connection 12.2.2.6 New Display Board Legend 1. Mode Button 2.
  • Page 34 CONTROL SYSTEM 12.2.3 Control Features 12.2.3.1 Compressor DC brush less and sensor less motor inverter driven compressor. 12.2.3.2 Compressor Drive DC inverter module to drive compressor. 12.2.3.3 Outdoor Fan DC brush less motor(s) drive the outdoor unit fan(s). 12.2.3.4 5HYHUVH 9DOYH VHW WKH GLUHFWLRQ RI UHIULJHUDQW ÀRZ LQ WKH V\VWHP WKXV VHWWLQJ WKH RSHUDWLRQ PRGH IRU FRROLQJ RU heating.
  • Page 35 CONTROL SYSTEM 12.2.3.9 Base Heater Heating element designed to melt any ice that is accumulated on the outdoor unit base during low heating operation. The base heater will be working only when RV is “ON” according to the following graph: Base Heater When OAT is faulty the base heater will be “ON”...
  • Page 36 CONTROL SYSTEM 12.3 General Operating Rules 12.3.1 Power up Sequence After Power up A/C must perform some initialization procedures. Thermistors short/disconnect. Compressor Driver communication connected and error codes if any. Fans connected – check feedback. EEPROM power up parameters uploads. EEV initialization –...
  • Page 37 CONTROL SYSTEM 12.3.2 Communication with Indoor Unit  &RPPXQLFDWLRQ )DLOXUHV 'H¿QLWLRQ 12.3.2.1.1 ‘Bad Communication’ fault The system keeps a balance of a good/bad communication packet ratio. When the ratio becomes high the system enters ‘Bad Communication’ fault. The system recovers from that fault when the ratio becomes small again. :KHQ LQ µ%DG &RPPXQLFDWLRQ¶...
  • Page 38 CONTROL SYSTEM The following combinations show the allowed and not allowed capacity group: Is it allowed capacity group? ODU Model Indoor Capacity AB (GCD36 DCI) AV(YBD036-H13/4HP 3Phase) AE (4HP DCI 3-Phase) AF (YBD042-H13/5HP DCI 3-Phase) AG (YBD060-H13/6HP DCI 3-Phase) AO (YBD042/5HP DCI) AP (YBD060/6HP DCI) AS (YBDE018 DCI) AT (YBDE024 DCI)
  • Page 39 CONTROL SYSTEM 12.3.4.3 System operation whenever a thermistor fault occurs ODU Mode H/NH ¥ ¥ ¥ ¥ ¥ ¥ Normal H/NH ¥ Stop Comp H/NH ¥ ¥ ¥ ¥ ¥ ¥ Normal H/NH ¥ Stop Comp H/NH ¥ ¥ ¥ ¥...

  • Page 40: Indoor Fan Control

    CONTROL SYSTEM NLOAD limits as a function of power shedding: Mode Power Shedding OFF Power Shedding ON Cooling No limit Nominal Cooling Heating No limit Nominal heating 12.4.2 Indoor Fan Control 12.4.2.1 Indoor fan control - FAN Mode :KHQ 7+0/ VSHHG LV VHW E\ XVHU ,)$1 ZLOO ZRUN LQ FRQVWDQW UHTXHVWHG VSHHG :KHQ $XWR)DQ LV VHW E\ XVHU ,)$1 VSHHG ZLOO EH VHW DFFRUGLQJ WR WKH IROORZLQJ JUDSK Turbo HIGH...
  • Page 41 CONTROL SYSTEM 12.4.2.2 Indoor fan control - Cool Mode :KHQ 7+0/ VSHHG LV VHW E\ XVHU ,)$1 ZLOO ZRUN LQ FRQVWDQW UHTXHVWHG VSHHG :KHQ $XWR)DQ VSHHG LV VHW E\ XVHU ,)$1 VSHHG ZLOO EH VHW DFFRUGLQJ WR /2$' Q DV LQ WKH following graph: IFAN Speed IFTURBO...

  • Page 42: Control Functions

    CONTROL SYSTEM 12.4.3 Cooling Mode 12.4.3.1 Cooling Mode – General 0RGH 'H¿QLWLRQ 0RGH &22/ $872 DW &RROLQJ Temp: Selected desired temperature. )DQ /2: 0(' +,*+ 785%2 $872 Timer: I-FEEL: ON or OFF 5RRP 7HPSHUDWXUH 57 LV GHWHFWHG E\ 5$7 LQ QRUPDO RSHUDWLRQ RU RCT (R/C sensor) in I-FEEL mode.
  • Page 43 CONTROL SYSTEM 12.4.4 Heating Mode 12.4.4.1 Heating - General 0RGH 'H¿QLWLRQ 0RGH +($7 $872 DW KHDWLQJ Temp: Selected desired temperature )DQ /2: 0(' +,*+ 785%2 $872 Timer: Any I-FEEL: ON or OFF 5RRP 7HPSHUDWXUH 57 LV GHWHFWHG E\ 5$7 LQ QRUPDO RSHUDWLRQ RU RCT (R/C sensor) in I-FEEL mode.
  • Page 44 CONTROL SYSTEM 12.4.4.4 Temperature Compensation $ FRPSHQVDWLRQ YDOXH RI  GHJUHHV LV UHGXFHG IURP URRP WHPSHUDWXUH UHDGLQJ H[FHSW ZKHQ LQ ,)HHO PRGH  WR FRPSHQVDWH IRU WHPSHUDWXUH GLIIHUHQFH EHWZHHQ KLJK DQG ORZ DUHDV LQ WKH KHDWHG URRP DQG IRU FRLO KHDW UDGLDWLRQ on room thermistor.

  • Page 45: Control Function

    CONTROL SYSTEM 12.4.6 Dry Mode 12.4.6.1 DRY - General 0RGH 'H¿QLWLRQ Mode: Temp: Selected desired temperature Fan: LOW (automatically selected by software) Timer: I-FEEL: ON or OFF 12.4.6.2 Control function COMP Operation In general – the operation is set by the NLOAD calculation in indoor unit side. Other rules are according to section 12.5.1.

  • Page 46: Sleep Mode

    CONTROL SYSTEM 12.4.7 Sleep Mode 12.4.7.1 Sleep Mode - General 0RGH 'H¿QLWLRQ Mode: Temp: Selected desired temperature IFan: Timer: See below I-FEEL: ON or OFF 12.4.7.2 Control function o The Sleep mode is activated by using the SLEEP button on the R/C. In Sleep 0RGH WKH XQLW ZLOO DXWRPDWLFDOO\ DGMXVW WKH 637 WR WXUQ XSGRZQ WKH URRP temperature (RT) gradually to provide maximum comfort for the sleeping user.
  • Page 47 CONTROL SYSTEM 12.4.9 Indoor Units Operation when Indoor Unit Mode is Different than Outdoor Unit Mode Open louvers according to user selection. Indoor fan is forced to OFF. Indoor unit led is blinking 12.4.10 Indoor Unit Dry Contact Status Function Contact = Open Contact = Short J9 = Open...

  • Page 48: Run Mode

    CONTROL SYSTEM 12.5 Run Mode 5XQ PRGH LV WKH GHIDXOW RSHUDWLRQ PRGH RI WKH V\VWHP 7KLV LV WKH VWDQGDUG RSHUDWLRQ PRGH WKDW LV DFWLYH LQ ¿HOG DSSOLFDWLRQ (at customer site). System can go from run mode to other operation modes through keyboard or serial ports. 12.5.1 Mode Setting 7KHUPDO PRGH GH¿QHV WKH 2'8 RSHUDWLRQ PRGH 7KHUH DUH WKUHH SRVVLEOH RSHUDWLRQ PRGHV...
  • Page 49 CONTROL SYSTEM 12.5.2.1 Compressor Min On/Off time Compressor minimum ON and OFF time is 3 minutes except during protections. 12.5.2.2 Compressor Startup :KHQ VWDUWHG FRPSUHVVRU VSHHG UHDFKHV FHUWDLQ OHYHO XVXDOO\ · 536 DQG ZLOO QRW JR EHORZ WKDW GXULQJ WKH ¿UVW  PLQXWHV H[FHSW ZKHQ FRPSUHVVRU LV IRUFHG 2)) 12.5.2.3 Compressor start up fail...

  • Page 50: Operation Range

    CONTROL SYSTEM 12.5.2.9 Compressor taget frequency During normal operation (excluding protections) the compressor target frequency is set according to the ODU NLOAD number received from the indoor unit. ODU NLOAD Target Frequency [Hz] 0  2'8 1/2$' ” 0LQ)UHT MinFreq >MinFreq Linear relation between Min and Max freq.
  • Page 51 CONTROL SYSTEM  ((9 FRUUHFWLRQ GH¿QLWLRQ ((9&9 7KH ((9 FRUUHFWLRQ YDOXH LV GHWHUPLQHG DFFRUGLQJ WR WKH RSHUDWLRQ PRGH the actual compressor speed and indoor/outdoor conditions. The correction value is targeting towrds optimal behavior of the system. The following table describes the closed loop control type (EEV correction): Main EEV Mode Target CTT...
  • Page 52 CONTROL SYSTEM 12.6 Thermodynamic Protections 12.6.1 IDU Protections 12.6.1.1 Condensate Water over Flow Protection (DFK RI WKH SLQV 3 3 3 FDQ KDYH WZR RSWLRQV 1 – When it is shorted with P4 0 – When it is not shorted to P4 Level Don’t care Normal...
  • Page 53 CONTROL SYSTEM Protection Status General Description Normal No protection Hz Up Compressor frequency is allowed to increase slowly Stop Rise Compressor frequency is not allowed to rise Hz Down 1 Compressor frequency is reduce Hz Down 2 Compressor frequency is reduce Stop Compressor Compressor is stopped Each protection has protection status.
  • Page 54 CONTROL SYSTEM  7RWDO 3URWHFWLRQ /HYHO 'H¿QLWLRQ 7KH WRWDO SURWHFWLRQ OHYHO LV GH¿QHG E\ WKH KLJKHU OHYHO RI SURWHFWLRQ UHFHLYHG 12.6.3 Deicing 12.6.3.1 Deicing Starting Conditions 12.6.4.1 Deicing Starting Conditions Deicing operation will start when either one of the following conditions exist: Case 1: OCT is 8 degree lower then the ambiant temp and the minimum time from the last deicer is passed.

  • Page 55: User Interface

    CONTROL SYSTEM 12.6.4 High/Low Pressure Protection :KHQHYHU KLJK RU ORZ SUHVVXUH DFFXUHV LQ WKH V\VWHP ZKLFK H[WHQG EHLQG WKH V\VWHP SUHGH¿QHG OLPLWV WKH KLJK and low pressure switchs turns on (short) and stops the compressor until these limits are redrawn. Fault code error 8 (HPS) or 9 (LPS) will be shown until compressor will resume operation.
  • Page 56 CONTROL SYSTEM 12.8.3 Menus 12.8.3.1 Main Menu Mode (Cl/Ht/Sb) Technician Test (tt) Technician Test Cool (PtC) Technician Test Heat (PtH) Charge Test Cool (CtC) Charge Test Heat (CtH) Installation Test (it) (Multi Only) Number of IDU`s Begin test Test Result Matrix Table Test Result Problem Correction Diagnostics (dia)
  • Page 57 CONTROL SYSTEM Notes The default presentation will be the mode of the unit (Cl/Ht/Sb). In diagnostics menu, xx means failure code. Only the last active (operative) failure code will be shown, if there is no active failure a “-“sign will be shown (the faults Numbers are the one shown in the single split table).
  • Page 58 CONTROL SYSTEM 12.8.3. Status (Sub Menu) Status (Stt) ICT-A (Multi Only) ICT-B (Multi Only) ICT-C (Multi Only) ICT-D (Multi Only) ICT-E RAT-A (Multi Only) RAT -B (Multi Only) RAT -C (Multi Only) RAT -D (Multi Only) RAT -E Operation Mode Operation Mode-A (Multi Only) Operation Mode-B...
  • Page 59 CONTROL SYSTEM Model -A (Multi Only) Model -B (Multi Only) Model -C (Multi Only) Model -D (Multi Only) Model -E #of IDUs (Multi Only) Operation Mode OFAN Up OFAN Down Speed RGT-A (Multi Only) RGT-B (Multi Only) RGT-C (Multi Only) RGT-D (Multi Only) RGT-E...
  • Page 60 CONTROL SYSTEM 12.8.4 Technician Perpherial Test (TPT) Technician Peripheral test mode designed especially for Technician personal to provide DELOLW\ WR WHVW SHULSKHUDOV VXFK DV 2)$1 ((9 59 &203 HWF Each item is operated directly so no software logic can deny the operation. 12.8.4.1 General Rules Entering TPT –...
  • Page 61 CONTROL SYSTEM 12.8.4.3 Pump Down Test procedure Pump Down is used to evacuate the refrigerant back to the ODU in case of need to dis-connect the indoor unit or the inter-connecting piping for repair. Start the operation by navigating the HMI. A/C will start operate.
  • Page 62 CONTROL SYSTEM 12.8.4.9 Gas Block Test procedure This test is used for technician to check the blockage within the system. The test is operates in heat mode and the technician should close the liquid valve manually. Start the operation by navigating the HMI. Note - The test is not operable when OAT<5q& ,I VR WKH GLVSOD\ ZLOO VKRZ ³Q$´ A/C will start operate in Heat Mode.
  • Page 63 CONTRO OL SYSTEM Compe ensation J Jumper/DIP P – J2 12.9.2.2 sition Statu Descriptio Open n (Disconne ected) Compensa ation deactiv vated Clos se (Shorted) Compensa ation activat ted (Default Used f for height co ompensatio n in heat m mode Family selection...
  • Page 64 Model Sele ction Jum per/DIP – J2, J3, J4, J5, J6, 12.9.3.2 See below ta able TPT te st Jumper /DIP – J8 12.9.3.3 sition Statu Descriptio Open n (Disconne ected) Normal Op peration (D efault) Clos se (Shorted) Test enabl Used f for technicia an testing –...
  • Page 65 CONTROL SYSTEM 12.9.5 Remote Control RC-8 Reset Operation – 3UHVV DOO  EXWWRQV VLPXOWDQHRXVO\ IRU  VHF ³&/($5³  ³6(7´  ³´  ´´  SM DL -A.1 GB 12-37...

  • Page 66: System Parameters

    CONTROL SYSTEM 12.10 System Parameters 12.10.1 General Parameters for All Models Name Default Value Units MinOFFTime minute MinONTime minute DImin minute DImax minute TimeD minute DTmin minute minute CTMRUP minute minute second DEICT1 second DEICT2 second DEICT3 second DSTF °C OMTOH0 °C OMTOH1...
  • Page 67 CONTROL SYSTEM 12.10.2 ODU Model Dependent Parameters Parameter Name Range Res. Unit MinFreqC 0-127 MaxFreqC 0-127 MinFreqH 0-127 MaxFreqH 0-127 DeicerFreq 0-127 Step1Freq 0-127 Step2Freq 0-127 Step3Freq 0-127 Step4Freq 0-127 Step1Time Step2Time Step3Time Step4Time NightRPS 0-110 OFMinRPMC 0-130 *10RPM OFMinRPMH 0-130 *10RPM OFMaxRPMC...
  • Page 68 Parameter Name Range Res. Unit HSTOH1 0 –110 °C HSTOH2 0 –110 °C HSTOH3 0 –110 °C HSTOH4 0 –110 °C HSTOH5 0 –110 °C ICTDef0 -23 – 8 °C ICTDef1 -23 – 8 °C ICTDef2 -23 – 8 °C ICTDef3 -23 –...
  • Page 69 CONTROL SYSTEM 12.11 7-Segment Legend 7 7 -segments lege e nd SM DLF 1-A.1 GB 12-41...

  • Page 70: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING 13.1 Precaution, Advise and Notice Items 13.1.1 High voltage in Indoor and Outdoor unit electrical assembly ƒ Open the Outdoor unit controller assembly only after one minute from power off. ƒ Whole controller assembly, including the wires, connected to the Outdoor unit may have the potential hazard voltage when power is on.
  • Page 71 TROUBLESHOOTING 13.2 General System Failures and Corrective Actions SYMPTOM / PROBABLE CORRECTIVE ACTION PROBLEM CAUSE Indoor unit Check supply voltage to main terminals L and N No Power supply with volt meter. Check all supply wiring to controller and terminals Miss-wiring according to wiring diagram Indoor unit power supply...
  • Page 72 TROUBLESHOOTING SYMPTOM / PROBABLE CORRECTIVE ACTION PROBLEM CAUSE One indoor unit or more are operating in cool mode with no capacity, and the other units have water leaks/freezing communication Check and correct the communication wires problems wires of the connection indoor units are One indoor or more are switched...
  • Page 73 TROUBLESHOOTING SYMPTOM / PROBABLE CORRECTIVE ACTION PROBLEM CAUSE Unit size not Check if the size chosen for the complete room(s) match the load load is enough or need bigger units Check if piping is installed correctly and proper Piping size not diameter size and total length is according to unit matching system VSHFL¿FDWLRQV...
  • Page 74 TROUBLESHOOTING SYMPTOM / PROBABLE CORRECTIVE ACTION PROBLEM CAUSE Check all according to above problem Check if HPS fault code (#8) is accruing Compressor stops many HP Switch frequently. If so, check the switch operation ( 13.5.14) times during operation Check if LPS fault code (#9) is accruing LP Switch frequently.
  • Page 75 TROUBLESHOOTING 13.3 Checking the refrigeration system Checking system pressures and other thermodynamic measures should be done when system LV LQ WHFKQLFLDQ 0RGH ZKHUH WKH V\VWHP RSHUDWHV DV LQ ¿[HG VHWWLQJV 7KH SHUIRUPDQFH FXUYHV given in this manual are given for unit performance in Technician mode when high indoor fan speed is selected.
  • Page 76 TROUBLESHOOTING Problem OCT is shorted/disconnected CTT is shorted/disconnected HST is shorted/disconnected OAT is shorted/disconnected OMT is shorted/disconnected RGT is shorted/disconnected RLT is shorted/disconnected High pressure protection Low pressure protection No communication to Driver Compressor IPM Fault IPM Driver Pin Compressor Current Sensor Fault No Water Flow (For Hydro Units only) Refrigerant Leakage DC over voltage...
  • Page 77 TROUBLESHOOTING 13.4.2 Outdoor unit diagnostics and corrective actions Fault Name Fault Description Corrective Action OCT short/disconnect CTT short/disconnect Thermistor not connected or HST short/disconnect Check Thermistor (13.5.13) damaged OAT short/disconnect OMT short/disconnect RGT short/disconnect RLT short/disconnect Normally no action is required Compressor stopped due to If the problem persists for more than twice High pressure protection...
  • Page 78 TROUBLESHOOTING Fault Name Fault Description Corrective Action PFC Current sensor Driver fault Replace Compressor Driver Missing phase Check power supply lines Installation incorrect Phase order mismatch Switch between 2 supply lines Can occur during high current conditions. If problem persists, Check power supply to driver.
  • Page 79 TROUBLESHOOTING Fault Name Fault Description Corrective Action System is performing out of its outdoor condition Check if indeed the conditions are Operation conditions are limitations: exceeded. If not, check OAT thermistor, if exceeded Cooling: >46°C , <-11°C. OK, check no obstructions to outdoor air Heating: >30°C , <-18°C.
  • Page 80 TROUBLESHOOTING 13.4.4 Indoor unit diagnostics and corrective actions Fault Probable Cause Corrective Action Sensors not 1-4, Sensor failures Check Thermistor (13.5.13) connected or damaged 8QGH¿QHG ,'8 IDU is not a valid ,'8 MXPSHU FRQ¿JXUDWLRQ LV QRW FRUUHFW Family/Model model or family IDU-ODU Check communication between indoor No Communication...
  • Page 81 TROUBLESHOOTING Fault Probable Cause Corrective Action System is using EEPROM Not ROM parameters No action, unless special parameters are Updated and not EEPROM required for unit operation. parameters No action, unless special parameters are Bad EEPROM required for unit operation. IDU-ODU Check communication between indoor Bad Communication...
  • Page 82 TROUBLESHOOTING 13.5 Procedures for checking Main Parts 13.5.1 Discharge DC Voltage High voltage!!! Wait for DC voltage to be discharged before re touching any part of the driver to avoid electric shock. Check to ensure that DC voltage has reduced to below 50VDC, if not, keep waiting until it does.
  • Page 83 TROUBLESHOOTING 13.5.5 Checking PFC Chock coil 1) Check PFC chock connections – repair if needed. 2) Visually check to see any burn marks on the wires – replace the chock(s) if needed. 3) Disconnect the chock from the driver and check if the 2 ending wires of each chock are shorted (continuity check) –...
  • Page 84 TROUBLESHOOTING 13.5.9 Checking Compressor 1) Check Compressor connections - Repair if needed. 2) Check the resistance between the three phases – all three coil resistances should be the same: UNIT RESISTANCE YBD036 - H11 / INV38  INV40-50 / YBD042-060 - H11  YAD036-042-060 - H13 ...
  • Page 85 TROUBLESHOOTING 13.5.10 Checking Reverse Valve (RV) The RV has two parts, Solenoid and valve. 1) Disconnect the RV connector from the main board and operate the unit in heating mode, check the voltage between two pins of reverse valve connector on the controller, normal voltage is 230VAC - if no power supply to RV, replace outdoor main board.
  • Page 86 TROUBLESHOOTING CTT (YBDE018-024), OAT, OCT, OMT, ICT, RAT, HST Chart R-T Table =10k: 25°C =39K 25/85°C 1000.0 100.0 10.0 Temperature [C] SM DLF 1-A.1 GB 13-17...
  • Page 87 TROUBLESHOOTING 13.5.13 Checking High Pressure Switch (HPS) 1) Disconnect HPS connector from the main board and check resistance between the 2 pins of the HPS connector – if shorted the HPS is OK, otherwise replace HPS. Replacing HPS - (14.1.10) 13.5.14 Checking Low Pressure Switch (LPS) 1) Disconnect LPS connector from the main board and check resistance between the 2 pins of the...
  • Page 88 TROUBLESHOOTING 13.5.16.2 YBD 018-030 1) Check voltage on the interconnection wiring – should be 22VDC±1VDC. If not: 2) Disconnect the wire cable from the connector on the IDU main board side and Check voltage on the IDU terminals “N” and “C” – should be 43VDC±1VDC. If not, replace IDU controller. If it is 43VDC: 3) Connect back the wires to the IDU side and disconnect at ODU side.
  • Page 89 TROUBLESHOOTING 13.5.17 Checking Indoor Unit Fuse on Controller If the 3.15A fuse on the main Board is burnt check the fan or any other peripheral that can cause a short: 1) In case of a problematic peripheral - replace it. 2) In case no problematic peripheral replace the burnt fuse.

  • Page 90: Exploded Views And Spare Parts Lists

    EXPLODED VIEWS AND SPARE PARTS LISTS EXPLODED VIEWS AND SPARE PARTS LISTS Indoor Unit: DLF 18 14.1 SM DLF 1-A.1 GB 14-1...
  • Page 91 EXPLODED VIEWS AND SPARE PARTS LISTS 14.2 Indoor Unit: DLF 18 DCI SM DLF 1-A.1 GB 14-2...
  • Page 92 EXPLODED VIEWS AND SPARE PARTS LISTS 14.3 Outdoor Units: YBDE 018-H11 - Exploded View 14.3.1 Outdoor Unit General Assembly SM DLF 1-A.1 GB 14-3...
  • Page 93 EXPLODED VIEWS AND SPARE PARTS LISTS 14.3.2 Outdoor Unit Parts Assembly SM DLF 1-A.1 GB 14-4...
  • Page 94 EXPLODED VIEWS AND SPARE PARTS LISTS 14.3.3 Outdoor Unit: YBDE 018-H11 Spare Part List Description 253054 Supply Cord Clamp 416320 Motor 70W,2S,OU7 DCI 416910 Cable Holder 416910 Cable Holder 417000 OU Square Fan Guard 425713 EEV Coil (C) QA (Q) 12-YLT-07-RK 426630 Compressor Internal Insulation 426631...
  • Page 95 EXPLODED VIEWS AND SPARE PARTS LISTS EXPLODED VIEWS AND SPARE PARTS LISTS Indoor Unit: DLF 24 DCI 14.4 EXPLODED VIEWS AND SPARE PARTS LISTS Indoor Unit: DLF 18 15.1 SM DLF 1-A.1 GB 15-1 SM DLF 1-A.1 GB 14-6 CONTENT...
  • Page 96 EXPLODED VIEWS AND SPARE PARTS LISTS 14.5 Indoor Unit: DLF 24 DCI SM DLF 1-A.1 GB 14-7...
  • Page 97 EXPLODED VIEWS AND SPARE PARTS LISTS 14.6 Outdoor Unit: YBDE 024-H11 - Exploded View 14.6.1 Outdoor Unit General Assembly SM DLF 1-A.1 GB 14-8...
  • Page 98 EXPLODED VIEWS AND SPARE PARTS LISTS 14.6.2 Outdoor Unit Parts Assembly SM DLF 1-A.1 GB 14-9...
  • Page 99 EXPLODED VIEWS AND SPARE PARTS LISTS 14.6.3 Outdoor Unit: YBDE 024-H11 - Spare Part List Description 253054 Supply Cord Clamp 402283 Suction Accumulator 3"x5/8" 416320 Motor 70W,2S,OU7 DCI 416910 Cable Holder 416910 Cable Holder 417000 OU Square Fan Guard 425713 EEV Coil (C) QA (Q) 12-YLT-07-RK 426630 Compressor Internal Insulation...

  • Page 100: Optional Accessories

    OPTIONAL ACCESSORIES OPTIONAL ACCESSORIES 15.1 Base Heater Before starting the heaters connection verify that the unit is disconnected from main power supply!! BASE HEATERT INSTALLATION INSTRUCTIONS Instructions 1. Open the outdoor unit electrical cover and service panel. 2. Connect the base heater wires to connections marked as “BH” on the main controller (refer to Figure 1).
  • Page 101 OPTIONAL ACCESSORIES 15.2 Crank Case Heater Before starting the heaters connection verify that the unit is disconnected from main power supply!! CRANK CASE HEATERS INSTALLATION INSTRUCTIONS Instructions 1. Open the outdoor unit electrical cover and service panel. 2. Remove the compressor insulation layers. 3.
  • Page 102 APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUALS INFRARED REMOTE CONTROL RECEIVER OPERATION MANUAL RC-8 SM DLF 1-A.1 GB 16-1...

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