Airwell FLO 9 DCI Service Manual
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Airwell FLO 9 DCI Service Manual

Multi split trio quattro dci
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Multi Split Trio Quattro DCI
Indoor Units
Outdoor Units
FLO 9 DCI
FLO 12 DCI
FLO 18 DCI
SX 9 DCI
TRIO-72 DCI
SX 12 DCI
SX 18 DCI
QUTTRO-80 DCI
BS 12 DCI
K 9 DCI
K 12 DCI
K 18 DCI
REFRIGERANT
R410A
HEAT PUMP
OCTOBER – 2008
SM TQDCI 1-A.1 GB
CONTENTS

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Summary of Contents for Airwell FLO 9 DCI

  • Page 1 Multi Split Trio Quattro DCI Indoor Units Outdoor Units FLO 9 DCI FLO 12 DCI FLO 18 DCI SX 9 DCI TRIO-72 DCI SX 12 DCI SX 18 DCI QUTTRO-80 DCI BS 12 DCI K 9 DCI K 12 DCI...
  • 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 ..................5-1 PRESSURE CURVES ...................6-1 ELECTRICAL DATA ....................7-1 WIRING DIAGRAMS & ELECTRICAL CONNECTIONS ........8-1 REFRIGERATION DIAGRAMS ................9-1 10. TUBING CONNECTIONS ..................10-1 11.

  • Page 4: Introduction

    INTRODUCTION INTRODUCTION General The Trio/Quattro DCI Multi series is a full line multi-tubing system with 3 to 4 connected indoor units. The multi-split inverter is a high level technology product for residential and commercial application offering comfort, low noise operation and energy saving. Main Features 1.2.1 High Technology...

  • Page 5: Indoor Unit Combinations

    INTRODUCTION Matching Table R410A DCI INDOOR UNITS OUTDOOR UNITS MODEL REFRIGER. FLO 9/12/18 K 9/12/18 SX 9/12/18 BS 12 √ √ √ √ R410A Trio-72 DCI √ √ √ √ Quattro-80 DCI R410A Indoor Unit combinations Trio Quattro Unit A Unit B Unit D Unit A...

  • Page 6: Product Data Sheet

    PRODUCT DATA SHEET PRODUCT DATA SHEET Outdoor TRIO-72 DCI Specifications. Model TRIO-72 DCI R410A Operation Mode Cooling Heating Kcal/hr 6,190(1,120~7,740) 7,740 (820~9,460) Capacity Btu/hr 24,570(4,440~30,710) 30,710 (3,240~37,530) (1), (2) 7,200 (1,300~9,000) 9,000 (950~11,000) Total Input 2,240 (500~3,000) 2,370 (500~3,000) E.E.R (Cooling) / C.O.P (Heating) 3.21 3.80 Running Current...
  • Page 7 PRODUCT DATA SHEET Outdoor QUATTRO-80 DCI Specifications. Model QUATTRO-80 DCI R410A Operation Mode Cooling Heating Kcal/hr 6,880 (1,200~7,910) 8,170 (820~9,460) Capacity Btu/hr 27,300 (4,780~31,390) 32,410 (3,240~37,530) (1), (2) 8,000 (1,400~9,200) 9,500 (950~11,000) Total Input 2,490 (500~3,000) 2,380 (400~3,000) E.E.R (Cooling) / C.O.P (Heating) 3.21 4.00 Running Current...
  • Page 8 PRODUCT DATA SHEET Indoor Units Data 2.3.1 FLO 9 DCI Specifications Model Indoor Unit / Type FLO 9 DCI / Wall Mounted Installation Method FLARE Power Supply V/Ph/Hz 220-240 / 1/ 50 Fan Type & Quantity Crossflow *1 530/570 Airflow...
  • Page 9 PRODUCT DATA SHEET 2.3.3 FLO 18 DCI Specifications Model Indoor Unit / Type FLO 18 DCI / Wall Mounted Installation Method FLARE Power Supply V/Ph/Hz 220-240 / 1/ 50 Fan Type & Quantity Crossflow *1 Airflow H/M/L Cooling / Heating Sound Power Level L - H dB (A)
  • Page 10 PRODUCT DATA SHEET 2.3.5 K 12 DCI Specifications Model Indoor Unit / Type K 12 DCI / Cassette Installation Method FLARE Power Supply V/Ph/Hz 220-240 / 1/ 50 Fan Type & Quantity Centifugal *1 Airflow H/M/L 580/620 510/560 435/450 Cooling / Heating Sound Power Level L - H dB (A)
  • Page 11 PRODUCT DATA SHEET 2.3.7 SX 9 DCI Specifications Model Indoor Unit / Type SX 9 DCI Floor/ceiling Installation Method FLARE Power Supply V/Ph/Hz 220-240 / 1/ 50 Fan Type & Quantity Centifugal *2 Airflow H/M/L Cooling / Heating Sound Power Level L - H dB (A) 47-50...
  • Page 12 PRODUCT DATA SHEET 2.3.9 SX 18 DCI Specifications Model Indoor Unit / Type SX 18 DCI Floor/ceiling Installation Method FLARE Power Supply V/Ph/Hz 220-240 / 1/ 50 Fan Type & Quantity Centifugal *2 Airflow H/M/L Cooling / Heating Sound Power Level L - H dB (A) 56 - 65...

  • Page 13: Rating Conditions

    RATING CONDITIONS RATING CONDITIONS Standard conditions in accordance with ISO 5151, 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 Outdoor...
  • Page 14 OUTLINE DIMENSIONS OUTLINE DIMENSIONS Indoor Unit: FLO 9/12 DCI Indoor Unit: FLO 18 DCI SM TQDCI 1-A.1 GB CONTENTS...

  • Page 15: Outline Dimensions

    OUTLINE DIMENSIONS Indoor Unit: K 9, 12, 18 DCI Indoor Unit: SX 9, 12, 18 DCI SM TQDCI 1-A.1 GB CONTENTS...
  • Page 16 OUTLINE DIMENSIONS Indoor Unit: BS 12 DCI Outdoor Units: TRIO-72, QUATTRO-80 DCI AIR INTAKE AIR OUTLET SM TQDCI 1-A.1 GB CONTENTS...

  • Page 17: Performance Data

    PERFORMANCE DATA PERFORMANCE DATA Outdoor Unit Trio-72 DCI Combinations (Based on FLO) 5.1.1 Cooling Energy Power Consumption Efficiency Cooling Capacity [KW] Nom. Model Class Nom. Min. Max. Nom. Min. Max. 2.50 2.50 1.30 3.70 1,025 3.65 3.50 3.50 1.30 4.40 1,223 3.62 5.00...
  • Page 18 PERFORMANCE DATA Outdoor Unit Trio-72 DCI Combinations (Based on FLO) 5.1.2 Cooling Sensible Cooling Capacity [KW] Model Nom. 1.63 1.63 2.38 2.38 3.90 3.90 1.66 1.66 3.32 9+12 1.67 2.33 4.00 9+18 1.59 3.81 5.40 12+12 2.35 2.35 4.70 12+18 1.99 3.43 5.42...
  • Page 19 PERFORMANCE DATA 5.1.3 Heating Power Consumption Heating Capacity [KW] Energy Model Efficiency Nom. Class Nom. Min. Max. Nom. Min. Max. 3.40 3.40 0.95 4.00 4.96 4.30 4.30 0.95 5.20 1,003 1,320 4.29 6.20 6.20 1.11 7.50 1,673 2,131 3.71 3.60 3.60 7.20 1.43...
  • Page 20 PERFORMANCE DATA Outdoor Unit Quattro-80 DCI Combinations (Based on FLO) 5.2.1 Cooling Power Cooling Capacity [KW] Energy Consumption [W] COP Model Efficiency Nom. Class Nom. Min. Max. Nom. Min. Max. 2.50 2.50 1.40 3.70 1,025 3.65 3.50 3.50 1.40 4.40 1,223 3.62 5.00...
  • Page 21 PERFORMANCE DATA Outdoor Unit Quattro-80 DCI Combinations (Based on FLO) 5.2.2 Cooling Sensible Cooling Capacity [KW] Model Nom. 1.63 1.63 2.38 2.38 3.90 3.90 1.65 1.65 3.31 9+12 1.67 2.32 3.99 9+18 1.65 3.96 5.61 12+12 2.35 2.35 4.69 12+18 2.14 3.68 5.82...
  • Page 22 PERFORMANCE DATA 5.2.3 Heating Power Heating Capacity [KW] Consumption [W] Energy Model Efficiency Nom. Class Nom. Min. Max. Nom. Min. Max. 3.40 3.40 0.95 4.00 4.96 4.30 4.30 0.95 5.20 1,207 4.54 6.20 6.20 1.11 7.50 1,497 1,875 4.14 3.64 3.64 7.28 1.43...
  • Page 23 PERFORMANCE DATA FLO 9 DCI 5.3.1 Cooling Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB 22/15 24/17 27/19 29/21 32/23 DATA TEMPERATURE [ºC]...
  • Page 24 PERFORMANCE DATA 5.3.3 Heating Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66 0.62...
  • Page 25 PERFORMANCE DATA FLO 12 DCI 5.4.1 Cooling Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal...
  • Page 26 PERFORMANCE DATA 5.4.3 Heating Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66 0.62...
  • Page 27 PERFORMANCE DATA FLO 18 DCI 5.5.1 Cooling Capacity Factors - Unit D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL 22/15 24/17 27/19 29/21 32/23 ENTERING AIR DB DATA TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range)
  • Page 28 PERFORMANCE DATA 5.5.3 Heating Capacity Factors - Unit D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.46 0.39 0.32 -15/-16 0.70 0.75 0.80 0.60 0.54 0.47 -10/-12 0.79...
  • Page 29 PERFORMANCE DATA K 9 DCI 5.6.1 Cooling Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB 22/15 24/17 27/19 29/21 32/23 DATA TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20...
  • Page 30 PERFORMANCE DATA 5.6.3 Heating Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66 0.62...
  • Page 31 PERFORMANCE DATA K 12 DCI 5.7.1 Cooling Capacity Factors - Run Mode (Unit A,B,C or D) 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC]...
  • Page 32 PERFORMANCE DATA 5.7.3 Heating Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/ DATA WB TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66...
  • Page 33 PERFORMANCE DATA K 18 DCI 5.8.1 Cooling Capacity Factor - Unit D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range)
  • Page 34 PERFORMANCE DATA 5.8.3 Heating Capacity Factor - Unit D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.46 0.39 0.32 -15/-16 0.70 0.75 0.80 0.60 0.54 0.47 -10/-12 0.79...
  • Page 35 PERFORMANCE DATA SX 9 DCI 5.9.1 Cooling Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal...
  • Page 36 PERFORMANCE DATA 5.9.3 Heating Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/ DATA WB TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66...
  • Page 37 PERFORMANCE DATA 5.10 SX 12 DCI 5.10.1 Cooling Capacity Factors - Run Mode (Unit A,B,C or D) 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL DATA ENTERING AIR DB 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC]...
  • Page 38 PERFORMANCE DATA 5.10.3 Heating Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/ DATA WB TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66...
  • Page 39 PERFORMANCE DATA 5.11 SX 18 DCI 5.11.1 Cooling Capacity Factor - Unit D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL 22/15 24/17 27/19 29/21 32/23 ENTERING AIR DB DATA TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal...
  • Page 40 PERFORMANCE DATA 5.11.3 Heating Capacity Factor - Unit D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/ DATA WB TEMPERATURE [ºC] 0.46 0.39 0.32 -15/-16 0.70 0.75 0.80 0.60 0.54 0.47 -10/-12...
  • Page 41 PERFORMANCE DATA 5.12 BS 12 DCI 5.12.1 Cooling Capacity Factors - Run Mode (Unit A,B,C or D) 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC]...
  • Page 42 PERFORMANCE DATA 5.12.3 Heating Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66 0.62...
  • Page 43 PERFORMANCE DATA 5.13 Tubing Length Capacity Correction Factor (F ) - one way 5.13.1 Cooling Tubing Length Capacity Ratio - Cooling (1 Unit) 1.06 1.01 0.96 0.91 0.86 0.81 0.76 Tubing Length [m] 5.13.2 Heating Tubing Length Capacity Ratio - Heating (1 Unit) 1.06 1.01 0.96...
  • Page 44 PERFORMANCE DATA 5.14 Model Correction Factors (F Capacity Power input Model Cooling Heating Cooling Heating 1.00 1.00 1.00 1.00 FLO DCI 1.03 1.07 1.01 1.10 K DCI SX DCI BS DCI 15.15 Calculation Example Quattro-80 DCI Outdoor Unit FLO 9+FLO 12+K 12+FLO 18 Indoor Combination Cooling Mode Operation Mode...

  • Page 45: Pressure Curves

    PRESSURE CURVES PRESSURE CURVES Model: TRIO-72 DCI 6.1.1 Cooling – Technician Mode Bar(g) Discharge Pressure - Cooling (Technician Mode) (WNG25+25+25 ; 5m each) 40.0 35.0 32/23 30.0 29/21 27/19 24/17 25.0 22/15 20.0 15.0 Outdoor DB Temperature [ºC] Suction Pressure - Cooling (Technician Mode) Bar(g) (WNG25+25+25 ;...
  • Page 46 PRESSURE CURVES 6.1.2 Heating – Technician Mode Discharge Pressure - Heating (Technician Mode) (WNG25+25+25 ; 5m each) Bar(g) 34.00 32.00 30.00 28.00 26.00 24.00 22.00 20.00 18.00 16.00 14.00 12.00 10.00 Outdoor DB Temperature [ºC] Suction Pressure - Heating (Technician Mode) Bar(g) (WNG25+25+25 ;...
  • Page 47 PRESSURE CURVES 6.1.3 Tubing Length correction Factor Tubing Length Pressure Ratio - Cooling 1.02 1.02 1.01 1.01 Cooling Pd Cooling Ps 1.00 1.00 0.99 0.99 0.98 0.98 Total Tubing Lengtht [m] Tubing Length Pressure Ratio - Heating 1.02 1.02 1.01 1.01 1.00 1.00...
  • Page 48 PRESSURE CURVES Model: QUATTRO-80 DCI 6.2.1 Cooling – Technician Mode Bar(g) Discharge Pressure - Cooling (Technician Mode) (WNG25+25+25+25 ; 5m each) 40.0 35.0 32/23 30.0 29/21 27/19 24/17 25.0 22/15 20.0 15.0 Outdoor DB Temperature[ºC] Suction Pressure - Cooling (Technician Mode) Bar(g) (WNG25+25+25+25 ;...
  • Page 49 PRESSURE CURVES 6.2.2 Heating – Technician Mode Bar(g) Discharge Pressure - Heating (Technician Mode) (WNG25+25+25+25 ; 5m each) 30.00 28.00 26.00 24.00 22.00 20.00 18.00 16.00 14.00 12.00 10.00 Outdoor WB Temperature [ºC] Suction Pressure - Heating (Technician Mode) Bar(g) (WNG25+25+25+25 ;...
  • Page 50 PRESSURE CURVES 6.2.3 Tubing Length correction Factor (F Tubing Length Pressure Ratio - Cooling 1.02 1.02 1.01 1.01 Cooling Pd Cooling Ps 1.00 1.00 0.99 0.99 0.98 0.98 Total Tubing Lengtht [m] Tubing Length Pressure Ratio - Heating 1.02 1.02 1.01 1.01 1.00...
  • Page 51 PRESSURE CURVES 6.2.4 Outdoor Unit Code correction Factor (F Cooling Heating Suction Discharge Suction Discharge Code Pressure Pressure Pressure Pressure 1.00 1.00 1.00 1.00 1.02 1.01 1.00 0.99 1.04 1.01 0.99 0.98 1.05 1.02 0.99 0.97 1.07 1.02 0.98 0.96 Calculation Example Quattro-80 DCI Outdoor Unit...

  • Page 52: Electrical Data

    ELECTRICAL DATA ELECTRICAL DATA Trio-72, Quattro-80 DCI Power Supply 1 PH, 220-240 VAC, 50Hz Connected to Outdoor Maximum Current 16 A Inrush Current 35 A Starting Current 11 A Circuit breaker 20 A Power supply wiring - No. x cross section 3 X 2.5 mm Interconnecting cable - No.

  • Page 53: Wiring Diagrams & Electrical Connections

    WIRING DIAGRAMS & ELECTRICAL CONNECTIONS WIRING DIAGRAMS & ELECTRICAL CONNECTIONS Outdoor Units: TRIO-72, QUATTRO-80 DCI SM TQDCI 1-A.1 GB CONTENTS...
  • Page 54 WIRING DIAGRAMS & ELECTRICAL CONNECTIONS Outdoor Units: TRIO-72, QUATTRO-80 DCI Service Manual - Trio_Quttro DCI CONTENTS...

  • Page 55: Sm Tqdci 1-A.1 Gb Contents

    REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS TRIO-72 DCI, QUATTRO-80 DCI Outdoor Unit Refrigerant System Diagram SM TQDCI 1-A.1 GB CONTENTS...

  • Page 56: Tubing Connections

    TUBING CONNECTIONS TUBING CONNECTIONS TUBE (Inch) ¼” ⅜” ½” ⅝” ¾” TORQUE (Nm) 11-13 40-45 60-65 70-75 80-85 Flare Nuts 13-20 13-20 18-25 18-25 40-50 Valve Cap 11-13 11-13 11-13 11-13 11-13 Service Port Cap Valve Protection Cap-end Refrigerant Valve Port (use Allen wrench to open/close) Valve Protection Cap Refrigerant Valve Service Port Cap...

  • Page 57: Control System

    CONTROL SYSTEM CONTROL SYSTEM 11.1 Abbreviations Abbreviation Definition Air Condition Building Management System System Power Compressor Top Temperature sensor DC Inverter Electronic Expansion Valve Heating Element Human Machine Interface Heat Sink Temperature sensor Hertz (1/sec) – electrical frequency Indoor Coil Temperature (RT2) sensor Indoor Unit Micro Controller Unit Outdoor Air Temperature sensor...
  • Page 58 CONTROL SYSTEM Control Power Input 230V ac Filter 230V ac Low voltage 3.3V 380V Power supply Application Control Feedback Display Alarm EEV’s IFAN COMP Base Heater SM TQDCI 1-A.1 GB 11-2 CONTENTS...
  • Page 59 CONTROL SYSTEM 11.2.7 Dry Contacts Dry contacts are used to interface the system with an external building management system (BMS). • Night input. Switches the system to night mode when closed. During night mode, the outdoor unit speed will be reduced in order to reduce the system noise level.
  • Page 60 CONTROL SYSTEM 11.3 General Operating Rules 11.3.1 Initialization Initialization process is the first operation done each time power is up. The targets of the initialization are: • Addressing of IDU’s • Identification of connected IDU’s • IDU Matching Check • EEV’s homing (reset position) •...
  • Page 61 CONTROL SYSTEM 11.3.2 Communication with Indoor Units 11.3.2.1 Communication Failures Definition Two types of communication failures are diagnosed. The communication failures are checked separately for each IDU channel. 11.3.2.1.1 ‘Bad Communication’ fault The system keeps a balance of a good/bad communication packet ratio for each active communication channel.

  • Page 62: Indoor Unit Control

    CONTROL SYSTEM 11.4 Indoor Unit Control 11.4.1 Indoor Fan Control 10 Indoor fan speeds are determined for each model. 5 speeds for each mode cool/dry/fan or heat. When user sets the indoor fan speed to a fixed speed (Low/ Medium/ High), unit will operate constantly at set speed.
  • Page 63 CONTROL SYSTEM 11.4.3.2 Indoor Fan Control in Heat Mode Indoor fan speed depends on the indoor coil temperature: ICTST ICTVL ICTL ICTH ICTT 11.4.4 Auto Cool/Heat Mode When in auto cool heat mode unit will automatically select between cool and heat mode according to the difference between actual room temperature and user set point temperature (ΔT).
  • Page 64 CONTROL SYSTEM 11.4.10 Indoor Unit Dry Contact Indoor unit Dry contact has two alternative functions that are selected by J8. Status Function Contact = Open Contact = Short J8 = Open Presence Detector Connection No Limit Forced to STBY J8 = Short Power Shedding Function No Limit Limit NLOAD...
  • Page 65 CONTROL SYSTEM STBY Cool Heat Auto (Low) User User User User User (Med) setting setting setting setting setting IFAN IFAN IFAN IFAN IFAN (High) speed speed speed speed speed (Turbo) (Auto) Backlight(red) Backlight(green) 11.4.12.3 Floor/Ceiling Model Lights up when the Air Conditioner is connected to power and is ready for operation STANDBY INDICATOR 1.

  • Page 66: Mode Setting

    CONTROL SYSTEM 11.5 Run Mode Run mode is the default operation mode of the system. This is the standard operation mode that is active in field application (at customer site). System can go from run mode to other operation modes through keyboard or serial ports. 11.5.1 Mode Setting Mode defines the ODU operation mode.

  • Page 67: Compressor Speed Control

    CONTROL SYSTEM 11.5.2 Compressor Speed Control 11.5.2.1 Compressor Min On/Off time Compressor minimum OFF time is MinOFFTime minutes except during Deicing protection. Compressor minimum ON time is MinOnTime minutes, minimum ON time is ignored during protections, and when unit is turned to STBY. 11.5.2.2 Compressor Speed calculation During normal operation (excluding protections), the compressor speed is limited by the...

  • Page 68: Eev Control

    CONTROL SYSTEM 11.5.2.5 Speed Step Limitations 11.5.2.5.1 Step 1 and step 2 The compressor speed cannot go below Step1RPS or above Step2RPS during 3 continuous minutes once after the compressor starts up when the ODU unit changes from STBY 11.5.2.5.2 Step 3 limit The speed cannot go higher than Step3RPS unless it was operating for more than 1...
  • Page 69 CONTROL SYSTEM EEV Opening EEV is initialized by Change current EEV opening + 20 to Idle and defined as 0. 11.5.3.4 EEV Opening Determination The target EEV value is the sum of open loop value (OL) and a result of the accumulative correction values (CV).
  • Page 70 CONTROL SYSTEM 11.5.4 Outdoor Fan Speed Control 11.5.4.1 General Rules o OFAN operates between to OFMaxRPM. OFMinRPM The OFAN speed is consecutive and related to the high pressure of the system. The fan speed is also related to compressor speed, outdoor temperature and to protections. 11.5.4.2 Behavior when there is a failure in OFAN Whenever OFAN fault occurs the compressor will be stopped immediately, except during deicing protection, then the OFAN will be enabled to be started for maximum 5 times.
  • Page 71 CONTROL SYSTEM Base Heater When OAT is faulty the base heater will be “ON” continuously in HEAT mode. 11.5.7 Thermodynamic Protections 11.5.7.1 Protection level definition Five protection levels are defined: Normal – No protection status is ON. Stop-Rise (SR) – System is in protection, first level D1 - System is in protection, second level D2 - System is in protection third level Stop-Compressor (SC) –...
  • Page 72 CONTROL SYSTEM 11.5.7.3.2 Indoor Coil over Heating Protection ICT Trend Fast Fast Decreasing No Change Increasing Decreasing Increasing ICT > 55 53 < ICT ≤ 55 49 < ICT ≤ 53 47 < ICT ≤ 49 45 < ICT ≤ 47 Norm Norm 43 <...
  • Page 73 CONTROL SYSTEM OAT – Outdoor Air Temperature TLD – Time from Last Deicing DI – Deicing Interval (Time Interval between Two Deicing) DST – Deicing static threshold (Temperature) Deicing interval time when compressor is first started in heat mode, is 10 minutes if OCT < -2, and is 40 minutes in other cases.
  • Page 74 CONTROL SYSTEM Water Level LEVEL4 LEVEL2&3 LEVEL1 Pump NLOAD BLINK OPER LED NORMAL 11.5.9.2 1 Level Logic (used in all models except for floor/ceiling models) Level Don’t care Normal Don’t care Overflow Overflow when Overflow when unit is ON unit is OFF Overflow Water Level Normal...

  • Page 75: Appendix A

    CONTROL SYSTEM 11.6 Installation Test Mode See “ APPENDIX ”. 11.7 Technician Test Mode This test is aimed for the technicians to check the system under a preset compressor and outdoor fan values while the expansion valves will function according to the normal running mode.

  • Page 76: User Interface

    CONTROL SYSTEM 11.8 User Interface 11.8.1 User interface description o The user interface uses three 7 segments, and 4 keys. o Keys, The 4 keys are: - Scroll - used to scroll between options (up and down) - Select - use to select an option - Escape - Will go up one level in the menu Select o The user interface concept is Tree menus.
  • Page 77 CONTROL SYSTEM 11.8.3 Menus 11.8.3.1 Main Menu Mode (Cl/Ht/Sb) Technician Test (tt) Technician Test Cool (ttC) Technician Test Cool (ttH) Installation Test (it) Diagnostics (dia) Outdoor Unit (oxx) Indoor Unit A (axx) Indoor Unit B (bxx) Indoor Unit C (cxx) Indoor Unit D (dxx) Set Up (Stp) First IDU Wins (idu)
  • Page 78 CONTROL SYSTEM Technician Test mode is exited after 60 minutes from entry. All the menus, except technician menus- Parameter changing, Status, Technician Test and their sub menus, are automatically exited to the main menu after 1 continuous minute out of any press. When Technician test cool or heat menu is selected, it will blink constantly until this menu is escaped.
  • Page 79 CONTROL SYSTEM SM TQDCI 1-A.1 GB 11-23 CONTENTS...

  • Page 80: Jumper Settings

    CONTROL SYSTEM Notes: • For the temperature display, when a thermistor is shorted or disconnected it shows FLT (FLt), when it is disabled it shows DIS (dis). • It’s possible to present a number between 999 and 99,999 by alternating between two numbers (each number is presented for 1 second).
  • Page 81 CONTROL SYSTEM 11.10.3 Compressor Parameters Compressor Parameters Value MinOFFTime MinOnTime MaxSpeedC MaxSpeedH Step1RPS Step2RPS Step3RPS 11.10.4 OFAN parameters EEV Parameters Value OFMinRPM 1000 OFMaxRPM NightRPM OFMinTimeReduce (Sec) 11.10.5 Indoor Units SW Parameters 11.10.5.1 General Parameters for All Models: Parameters defining the indoor fan speed as a function of Indoor Coil temperature in heat mode (ICT): 11.10.5.1.1 Parameters for defrost protection: ICTST Speed...
  • Page 82 CONTROL SYSTEM 11.10.5.2 Model Depended Parameters: Ducted Wall Mounted Models Floor/Ceiling Models Cassette Models Parameter name Models NLOAD limits as a function of selected indoor fan speed MaxNLOADIF1C MaxNLOADIF2C MaxNLOADIF3C MaxNLOADIF4C MaxNLOADIF5C Indoor Fan speeds IFVLOWC IFLOWC IFMEDC 1050 IFHIGHC 1050 1100 1200...

  • Page 83: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING WARNING!!! When Power Up – the whole outdoor unit controller, including the wiring, is under HIGH VOLTAGE!!! Never open the Outdoor unit before turning off the Power!!! When turned off, the system is still charged (400V)!!! It takes about 1 Min. to discharge the system. Touching the controller before discharging may cause an electrical shock!!! For safe handling of the controller please refer to section 12.5 below.
  • Page 84 TROUBLESHOOTING SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION Indoor coil block Clean filters and/or remove block Remove block and/or avoid air by- Outdoor coil block pass EEV problem Check EEV ( 12.4.7) Refrigerant leakage Check refrigeration system ( 12.2) Compressor is over heated and unit does Indoor coil block Clean filters and/or remove block not generate capacity...
  • Page 85 TROUBLESHOOTING Fault Name Fault Description Corrective Action OFAN- Vospd Exceeds speed high limit Check motor type matches motor jumpers in exceeded controller Make necessary arrengments in unit installation location to avoid back wind Avoid EMC problems ( 12.4.10.1) Compressor- IPM Fault Over current / Over temperature of Check no obstruction to controller air opening compressor IPM...
  • Page 86 TROUBLESHOOTING 12.3.2 Fault Code for Indoor unit Pressing Mode button for long will activate diagnostic mode by the acknowledgment of 3 short beeps and lighting of COOL and HEAT LED’s. When Indoor diagnostics is displayed, all four LED’s (STBY, Operate, Filter, TMR) are on. Entering diagnostics in STBY mode allows only viewing of status (fault-display).
  • Page 87 TROUBLESHOOTING 12.3.3 Indoor unit diagnostics and corrective actions Probable Cause Corrective Action Fault Check sensor connections or Sensor failures Sensors not connected or damaged replace sensor Indoor and Outdoor controllers are Communication mismatch Replace Indoor controller with different versions Communication or grounding wiring is Check Indoor to Outdoor wiring and No Communication not good...
  • Page 88 TROUBLESHOOTING The normal value should be between 10Ω to 20Ω. Change to Stand-by or Power OFF and re-start - If the fault is still active - replace controller. 12.4.5 Checking the Compressor Check Compressor connections - Repair if needed. Use a current probe (“Clamp”) to assure that there is an AC current on each phase – no more than 15A.
  • Page 89 TROUBLESHOOTING (insulate for noise or distance from the noise source): 1. Use shielded wires. 2. Move unit away from the noise source. 12.4.10.2 EMC troubles to near by home appliances Locations most susceptible to noise : 1. A television or radio is located near the A/C and A/C wiring. 2.

  • Page 90: Exploded Views And Spare Parts Lists

    EXPLODED VIEWS AND SPARE PARTS LISTS EXPLODED VIEWS AND SPARE PARTS LISTS 13.1 Outdoor Unit: Multi Trio-72 DCI SM TQDCI 1-A.1 GB 13-1 CONTENTS...
  • Page 91 EXPLODED VIEWS AND SPARE PARTS LISTS 13.2 Outdoor Unit: Multi Trio-72 DCI Description Quantity 4522604 Outlet Grid 4523652 Painted Left Cabinet Assy. 4526522 4-way Vavle R410a 452803600 4-way Valve System Assy. 452956700 4-way Valve Coil 452966200 Compressor Top Thermistor(CTT) 452677601 Outdoor Coil Thermistor(OCT) 467400000 Return Gas Thermistor(RGT)
  • Page 92 EXPLODED VIEWS AND SPARE PARTS LISTS 13.3 Outdoor Unit: Multi Quattro-80 DCI Part Name Quantity 4522604 Outlet Grid 4523652 Painted Left Cabinet Assy. 4526522 4-way Vavle R410a 452803600 4-way Valve System Assy. 452956700 4-way Valve Coil 452966200 Compressor Top Thermistor(CTT) 452677601 Outdoor Coil Thermistor(OCT) 467400000...
  • Page 93 EXPLODED VIEWS AND SPARE PARTS LISTS 13.4 Outdoor Unit: Multi Quattro-80 DCI Description Quant. 4522604 Outlet Grid 4523652 Painted Left Cabinet Assy. 4526522 4-way Vavle R410a 452803600 4-way Valve System Assy. 452956700 4-way Valve Coil 452966200 Compressor Top Thermistor(CTT) 452677601 Outdoor Coil Thermistor(OCT) 452956400 Return Gas Thermistor(RGT)
  • Page 94 APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► INSTALLATION MANUAL TRIO-72, QUATTRO-80 DCI 14-1 SM TQDCI 1-A.1 GB CONTENTS...

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