Airwell SX 9 DCI Service Manual
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Airwell SX 9 DCI Service Manual

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REFRIGERANT
SM SX DCI 1-A.3 GB
SX DCI Series
Indoor Units
SX 9 DCI
SX 12 DCI
SX 18 DCI
SX 24 DCI
SX 30 DCI
R410A
AUGUST – 2008
CONTENT
Outdoor Units
GC 9 DCI
GC 12 DCI
GC 18 DCI
GC 24 DCI
GC 30 DCI
HEAT PUMP

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Summary of Contents for Airwell SX 9 DCI

  • Page 1 SX DCI Series Indoor Units Outdoor Units SX 9 DCI GC 9 DCI SX 12 DCI GC 12 DCI SX 18 DCI GC 18 DCI SX 24 DCI GC 24 DCI SX 30 DCI GC 30 DCI REFRIGERANT R410A HEAT PUMP AUGUST –...
  • 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 INTRODUCTION ....................1-1 PRODUCT DATA SHEET ..................2-1 RATING CONDITIONS ..................3-1 OUTLINE DIMENSIONS ..................4-1 PERFORMANCE DATA & PRESSURE CURVES ..........5-1 SOUND LEVEL CHARACTERISTICS ..............6-1 ELECTRICAL DATA ....................7-1 WIRING DIAGRAMS .....................8-1 REFRIGERATION DIAGRAMS ................9-1 10. TUBING CONNECTIONS ..................10-1 11.

  • Page 4: Introduction

    INTRODUCTION INTRODUCTION General The SX split ceiling mounted range comprise RC (heat pump) models, as follows: Heat Pump SX 9, SX 12, SX 18, SX 24, SX 30. ● Main Features The SX series benefits from the most advanced technological innovations, namely: DC Inverter Technology R410A models.

  • Page 5: Outdoor Unit

    It includes : Compressor mounted in a soundproofed compartment : ● Single Rotary – for SX 9 DCI and SX 12 DCI. Scroll – for SX 18 DCI. Twin Rotary – for SX 24 DCI and SX 30 DCI. Axial fan.
  • Page 6 INTRODUCTION 1.10 Matching Table 1.10.1 R410A INDOOR UNITS OUTDOOR UNITS MODEL REFRIGER. SX 9 SX 12 SX 18 SX 24 SX 30 √ √ √ GC 9-12-18 R410A √ √ GC 24-30 R410A The above table lists outdoor units and SX DCI indoor units which can be matched together. In addition the listed outdoor units can be matched with other types of indoor units such as cassettes and wall mounted.

  • Page 7: Product Data Sheet

    PRODUCT DATA SHEET PRODUCT DATA SHEET SX 9 DCI R410A Model Indoor Unit SX 9 DCI Model Outdoor Unit GC 9 DCI Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 8530(4780~12280) 10920(5120~15350) Capacity 2.5(1.4-3.6) 3.2(1.5~4.5) 0.62(0.42-1.1) 0.93(0.4~1.6) Power input 4.03...
  • Page 8 PRODUCT DATA SHEET SX 12 DCI R410A Model Indoor Unit SX 12 DCI Model Outdoor Unit GC 12 DCI Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 11940(5120~15010) 14330(5120~17060) Capacity 3.5(1.5-4.4) 4.2(1.5~5.0) 0.98(0.46-1.3) 1.31(0.35~1.58) Power input 3.57 3.21 EER (Cooling) or COP(Heating) Energy efficiency class Power supply...
  • Page 9 PRODUCT DATA SHEET SX 18 DCI R410A Model Indoor Unit SX 18 DCI Model Outdoor Unit GC 18 DCI Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 17000(5120-20460) 20460(5120-24550) Capacity 5.0(1.5-6.0) 5.8(1.5~7.2) 1.65(0.5-2.1) 1.69(0.45-2.1) Power input 3.03 3.43 EER (Cooling) or COP(Heating) Energy efficiency class Power supply...
  • Page 10 PRODUCT DATA SHEET SX 24 DCI R410A Model Indoor Unit SX 24 DCI Model Outdoor Unit GC 24 DCI Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 23200(5120~25590) 25910(5110-30000) Capacity 6.80(1.50-7.60) 7.60(1.60~8.60) 2.25(0.50-2.68) 2.05(05~2.30) Power input 3.02 3.61 EER (Cooling) or COP(Heating) Energy efficiency class Power supply...
  • Page 11 PRODUCT DATA SHEET SX 30 DCI R410A Model Indoor Unit SX 30 DCI Model Outdoor Unit GC 30 DCI Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 25570(6820-32390) 30000(5110-35800) Capacity 7.5(1.6-8.6) 8.4(1.8-9.8) 2.49(0.5-3.1) 2.46(0.5-2.8) Power input 3.01 3.41 EER (Cooling) or COP(Heating) Energy efficiency class Power supply...

  • Page 12: 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 R410A Indoor...

  • Page 13: Outline Dimensions

    OUTLINE DIMENSIONS OUTLINE DIMENSIONS Indoor Unit: SX 9, 12 DCI Indoor Unit: SX 18, 24, 30 DCI SM SX DCI 1-A.3 GB CONTENT...
  • Page 14 OUTLINE DIMENSIONS Outdoor Unit: GC 9, 12, 18 DCI Outdoor Unit: GC 24, 30 DCI SM SX DCI 1-A.3 GB CONTENT...
  • Page 15 PERFORMANCE DATA & PRESSURE CURVES PERFORMANCE DATA SX 9 DCI 5.1.1 Cooling Capacity (kW) – Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ OU COIL ENTERING AIR DB DATA 22/15 24/17 27/19...
  • Page 16 PERFORMANCE DATA & PRESSURE CURVES 5.1.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ OU COIL ENTERING AIR DB/WB DATA TEMPERATURE 2.04 1.89 1.75 -15/-16 0.56 0.61 0.67 2.27 2.12 1.98...
  • Page 17 PERFORMANCE DATA & PRESSURE CURVES 5.1.5 Model: SX 9 DCI Cooling – Test Mode Suction Pressure Vs.Outdoor Temp. 1400 Indoor 1300 DB/WB 1200 22/15 1100 24/17 1000 27/19 29/21 32/23 Outdoor DB Temperature[ºC ] Discharge Pressure Vs. Outdoor Temp. 4000...
  • Page 18 PERFORMANCE DATA & PRESSURE CURVES 5.1.6 Heating – Test Mode Suction Pressure Vs.Outdoor Temp. 1300 1200 1100 1000 Outdoor WB Temperature [ºC] Discharge Pressure Vs. Outdoor Temp. 4000 3750 Indoor DB 3500 3250 3000 2750 2500 2250 2000 1750 1500 1250 1000 Outdoor WB Temperature [ºC]...
  • Page 19 PERFORMANCE DATA & PRESSURE CURVES SX 12 DCI 5.2.1 Cooling Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ OU COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ 80 - 110 % of nominal -10 - 20...
  • Page 20 PERFORMANCE DATA & PRESSURE CURVES 5.2.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ OU COIL ENTERING AIR DB/WB DATA TEMPERATURE 2.67 2.49 2.30 -15/-16 0.79 0.87 0.95 2.98 2.79 2.60...
  • Page 21 PERFORMANCE DATA & PRESSURE CURVES 5.2.5 Model: SX 12 DCI Cooling – Test Mode Suction Pressure VS.Outdoor Temp. 1400 Indoor DB/WB 1300 22/15 1200 24/17 1100 27/19 1000 29/21 32/23 Outdoor DB Temperature[ºC ] Discharge Pressure VS. Outdoor Temp. 4000 3750 Indoor 3500...
  • Page 22 PERFORMANCE DATA & PRESSURE CURVES 5.2.6 Heating – Test Mode Suction Pressure VS.Outdoor Temp. 1300 1200 1100 1000 Outdoor WB Temperature [ºC] Discharge Pressure VS. Outdoor Temp. 4000 3750 3500 3250 Indoor DB 3000 2750 2500 2250 2000 1750 1500 1250 1000 Outdoor WB Temperature [ºC]...
  • Page 23 PERFORMANCE DATA & PRESSURE CURVES Capacity Correction Factor Due to Tubing Length 5.3.1 SX 9, 12 DCI :Cooling 1.01 1.00 0.99 0.98 0.97 0.96 0.95 0.94 0.93 0.92 0.91 9 10 11 12 13 14 15 16 17 18 19 20 Tubing Length [m ] 5.3.2 Heating...
  • Page 24 PERFORMANCE DATA & PRESSURE CURVES SX18 DCI 5.4.1 Cooling Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ OU COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal...
  • Page 25 PERFORMANCE DATA & PRESSURE CURVES 5.4.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ OU COIL ENTERING AIR DB/WB DATA TEMPERATURE 2.64 2.26 1.88 -15/-16 1.18 1.27 1.35 3.48 3.10 2.72...
  • Page 26 PERFORMANCE DATA & PRESSURE CURVES 5.4.5 Model: SX 18 DCI Cooling – Test Mode Suction Pressure VS.Outdoor Temp. 1400 Indoor 1300 DB/WB 1200 1100 22/15 24/17 1000 27/19 29/21 32/23 Outdoor DB Temperature[ºC ] Discharge Pressure VS. Outdoor Temp. 4250 4000 Indoor 3750...
  • Page 27 PERFORMANCE DATA & PRESSURE CURVES 5.4.6 Heating – Test Mode Suction Pressure VS.Outdoor Temp. 1100 1000 Outdoor WB Temperature [ºC] Discharge Pressure VS. Outdoor Temp. 4000 3750 Indoor DB 3500 3250 3000 2750 2500 2250 2000 1750 1500 1250 1000 Outdoor WB Temperature [ºC] SM SX DCI 1-A.3 GB 5-13...
  • Page 28 PERFORMANCE DATA & PRESSURE CURVES Capacity Correction Factor Due to Tubing Length 5.5.1 SX 18 DCI :Cooling 1.01 0.99 0.97 0.95 0.93 0.91 0.89 10 12 16 18 22 24 26 28 Tubing length(m ) 5.5.2 Heating 1.02 1.00 0.98 0.96 0.94 0.92...
  • Page 29 PERFORMANCE DATA & PRESSURE CURVES SX 24 DCI 5.6.1 Cooling Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ OU COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ 80 - 110 % of nominal -10 - 20...
  • Page 30 PERFORMANCE DATA & PRESSURE CURVES 5.6.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ OU COIL ENTERING AIR DB/WB DATA TEMPERATURE 3.46 2.96 2.46 -15/-16 1.48 1.58 1.69 4.57 4.07 3.57...
  • Page 31 PERFORMANCE DATA & PRESSURE CURVES 5.6.5 Model: SX 24 DCI Cooling – Test Mode Suction Pressure Vs. Outdoor Temp. 1000 Indoor DB/WB 22/15 24/17 27/19 29/21 32/23 Outdoor DB Temperature[ Discharge Pressure Vs. Temp. 3900 3700 Indoor 3500 DB/WB 3300 3100 22/15 2900...
  • Page 32 PERFORMANCE DATA & PRESSURE CURVES 5.6.6 Heating – Test Mode Suction Pressure Vs. Outdoor Temp. 1050 Indoor DB Outdoor WB Temperature[ Discharge Pressure Vs. Outdoor Temp. 3700 3500 3300 Indoor DB 3100 2900 2700 2500 2300 2100 1900 1700 Outdoor WB Temperature[ 5-18 SM SX DCI 1-A.3 GB CONTENT...
  • Page 33 PERFORMANCE DATA & PRESSURE CURVES Capacity Correction Factor Due to Tubing Length 5.7.1 SX 24 DCI :Cooling 1.01 0.99 0.97 0.95 0.93 0.91 0.89 0.87 0.85 Heating Tube Length [m]) Tube Length(m) 5.7.2 Heating 1.05 1.00 0.95 0.90 0.85 0.80 0.75 0.70 Tube Length [m]...
  • Page 34 PERFORMANCE DATA & PRESSURE CURVES SX 30 DCI 5.8.1 Cooling Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ OU COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ 80 - 110 % of nominal -10 - 20...
  • Page 35 PERFORMANCE DATA & PRESSURE CURVES 5.8.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ OU COIL ENTERING AIR DB/WB DATA TEMPERATURE 3.96 3.39 2.82 -15/-16 1.78 1.91 2.04 5.23 4.66 4.09...
  • Page 36 PERFORMANCE DATA & PRESSURE CURVES 5.8.5 Model: SX 30 DCI Cooling – Test Mode Suction Pressure Vs. Outdoor Temp. 1000 Indoor DB/WB 22/15 24/17 27/19 29/21 32/23 Outdoor DB Temperature[ Discharge Pressure Vs.Outdoor Temp. 3900 3700 Indoor 3500 3300 DB/WB 3100 2900 22/15...
  • Page 37 PERFORMANCE DATA & PRESSURE CURVES 5.8.6 Heating – Test Mode Suction Pressure Vs.Outdoor Temp. 1150 1050 Indoor DB Outdoor WB Temperature[ Discharge Pressure Vs.Outdoor Temp. 3850 3600 3350 Indoor DB 3100 2850 2600 2350 2100 1850 1600 Outdoor WB Temperature[ SM SX DCI 1-A.3 GB 5-23 CONTENT...
  • Page 38 PERFORMANCE DATA & PRESSURE CURVES Capacity Correction Factor Due to Tubing Length 5.9.1 SX 80 DCI :Cooling 1.01 1.00 0.99 0.98 0.97 0.96 0.95 0.94 0.93 0.92 Heating Tube Length(m) Tube length [m] Capacity Ratio 1.00 1.00 1.00 1.00 0.981 0.943 0.904 0.865...

  • Page 39: Sound Level Characteristics

    SOUND LEVEL CHARACTERISTICS SOUND LEVEL CHARACTERISTICS Sound Pressure Level Unit Wall Mic. Ground Figure 1 Soud Pressure Level Spectrum (Measured as Figure 1) SX 9 SX 12 FAN SPEED LINE SM SX DCI 1-A.3 GB CONTENT...
  • Page 40 SOUND LEVEL CHARACTERISTICS SX 18 SX 24 SX 30 FAN SPEED LINE SM SX DCI 1-A.3 GB CONTENT...
  • Page 41 SOUND LEVEL CHARACTERISTICS Outdoor units Unit Mic. Ground Figure 2 Sound Pressure Level Spectrum (Measured as Figure 2 GC 9 DCI Cooling GC 9 DCI Heating GC 12 DCI Cooling GC 12 DCI Heating SM SX DCI 1-A.3 GB CONTENT...
  • Page 42 SOUND LEVEL CHARACTERISTICS GC 18 DCI Cooling GC 18 DCI Heating GC 24 DCI Cooling GC 24 DCI Heating FAN SPEED LINE SM SX DCI 1-A.3 GB CONTENT...
  • Page 43 SOUND LEVEL CHARACTERISTICS GC 30 DCI Cooling GC 30 DCI Heating FAN SPEED LINE SM SX DCI 1-A.3 GB CONTENT...

  • Page 44: Electrical Data

    ELECTRICAL DATA ELECTRICAL DATA Single Phase Units MODEL SX 9 DCI SX 12 DCI SX 18 DCI SX 24 DCI SX 30 DCI To indoor To indoor To indoor To outdoor To outdoor Power Supply 1PH-230V- 1PH-230V- 1PH-230V- 1PH-230V- 1PH-230V-...

  • Page 45: Wiring Diagrams

    WIRING DIAGRAMS WIRING DIAGRAMS SX 9, 12, 18 DCI / GC 9, 12, 18 DCI SM SX DCI 1-A.3 GB CONTENT...
  • Page 46 WIRING DIAGRAMS Indoor Unit: SX 24, 30 DCI SM SX DCI 1-A.3 GB CONTENT...
  • Page 47 WIRING DIAGRAMS Outdoor Unit: GC 24, 30 DCI SM SX DCI 1-A.3 GB CONTENT...

  • Page 48: Refrigeration Diagrams

    REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS SX 9, 12, 18, 24, 30 DCI Cooling Mode Heating Mode E E V SM SX DCI 1-A.3 GB CONTENT...

  • Page 49: Tubing Connections

    TUBING CONNECTIONS TUBING CONNECTIONS TUBE (Inch) ¼” ⅜” ½” ⅝” ¾” TORQUE (Nm) Flare Nuts 11-13 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 50: 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 3 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 11.6 below.
  • Page 51 TROUBLESHOOTING PROBABLE SYMPTOM CORRECTIVE ACTION CAUSE Problem with outdoor Check outdoor fan motor according Compressor is on but outdoor electronics or to the procedure in section 11.5.3 , if fan does not work outdoor fan not OK replace controller Check RV power connections, if OK, Unit works in wrong mode Electronics or power Check RV...
  • Page 52 TROUBLESHOOTING When system enters diagnostics mode, only one fault code is shown. Order of priority is from the lower to the higher number. Diagnostics is continuously ON as long as power is ON. The current system operation mode will not be changed. If no fault occurred in the system, no fault code will be displayed during normal operation mode.
  • Page 53 TROUBLESHOOTING Problem Model A Model B Model C Model D CN / LSN Units only 11.3.2 Indoor Unit Diagnostics and Corrective Actions Fault Probable Cause Corrective Action Sensor failures Check sensor connections or of all types replace sensor Indoor and Outdoor Communication controllers are with Replace Indoor controller...
  • Page 54 TROUBLESHOOTING Problem OMT is shorted (DCI72 / 72Z / 80) IPM Fault Bad EEPROM DC under voltage DC over voltage AC under voltage Mismatch IDU & ODU models (*SW 35V14 and above) No Communication Reserved Heat sink Over Heating Deicing Compressor Over Heating Compressor Over Current No OFAN Feedback...
  • Page 55 TROUBLESHOOTING Fault Probable Cause Corrective Action Switch unit to STBY and restart If still not ok check compressor (11.5.4) Compressor Lock If comp is ok replace OU controller If compressor is not ok replace compressor Communication quality Check Indoor to Outdoor Bad Communication is low reliability wiring and grounding...
  • Page 56 TROUBLESHOOTING 11.5.4 Checking the Compressor. The compressor is brushless permanence magnetic DC motor. Three coil resistance is same. Check the resistance between three poles. The normal value should be below 0.5 ohm (TBD). 11.5.5 Checking the Reverse Valve (RV). Running in heating mode, check the voltage between two pins of reverse valve connector, normal voltage is 220VAC.

  • Page 57: Control System

    CONTROL SYSTEM CONTROL SYSTEM 12.1 General Functions and Operating Rules The DCI software is fully parametric. All the model dependent parameters are shown in Blue color and with Italic style [parameter]. The parameters values are given in the last section of this control logic chapter of the service manual.
  • Page 58 CONTROL SYSTEM Target frequency limits as a function of outdoor air temperature (OAT): OAT Range Cooling Mode limits Heating Mode limits OAT < 6 No limit 6 ≤ OAT < 15 MaxFreqAsOATC MaxFreqAsOAT1H 15 ≤ OAT < 28 MaxFreqAsOAT2H 28≤ OAT No limit 12.1.3.2 Target Frequency Setting for DCI 72/80 The compressor Target Speed is calculated according to the following formula:...
  • Page 59 CONTROL SYSTEM 12.1.5.2 Compressor starting control for DCI72/80 Step 1 Whenever the compressor starts up, after it has been off for more than 45 minutes, the compressor frequency cannot go below Step1RPS for 3 continuous minutes (this rule comes to ensure oil return to the compressor).
  • Page 60 CONTROL SYSTEM OFAN Speed Compressor Routin Routin Routin Routin Target Frequency Freq=0 10 ≤ Freq < OFLowFreq OFLowFreq ≤ Freq< OFMedFreq Medium OFMedFreq≤ Freq High Medium When compressor is switched to OFF and the heat sink temperature is above 55 degrees, the outdoor fan will remain ON in low speed for up to 3 minutes.
  • Page 61 CONTROL SYSTEM 12.1.9.2 EEV Control for DCI72/72Z/80 The target EEV value is the sum of open loop value (OL) and a result of the accumulative correction values (CV). ¦ The EEV intial value(OL) is defined as follow: = EEVBaseOpenLoop + EEVOpenLoopCpctyCrct + EEVTubeCompnst EEV tube Length Basic EEV open loop Open Loop correction...
  • Page 62 CONTROL SYSTEM 12.3 Cool Mode NLOAD is calculated according to the difference between actual room temperature and user set point temperature by PI control. In high/ medium/ low indoor fan user setting, unit will operate fan in selected speed. In AutoFan user setting, fan speed will be adjusted automatically according to the calculated NLOAD.
  • Page 63 CONTROL SYSTEM 12.6 Dry Mode As long as room temperature is higher then the set point, indoor fan will work in low speed and compressor will work between 0 and MaxNLOADIF1C Hz. When the room temperature is lower than the set point, compressor will be switched OFF and indoor fan will cycle 3 minutes OFF, 1 minute ON.
  • Page 64 CONTROL SYSTEM 12.7.2.2 Indoor Coil Overheating Protection For 72/80 ICT Trend <-2 -1,0,1 >2 ICT >62 60 ≤ ICT < 62 58≤ ICT <60 56≤ ICT < 58 54≤ ICT < 56 Norm Norm 52≤ ICT ≤ 54 Norm Norm Norm ICT <52 Norm...
  • Page 65 CONTROL SYSTEM 12.7.3.2 Compressor Overheating Protection for DCI72/80 CTT Trend Fast Fast Decreasing Increasing Cool Heat Decreasing Change Increasing CTT >105 CTT >105 100≤ CTT < 100≤ CTT < 98≤CTT <100 95≤CTT <100 93≤CTT < 100 85≤CTT < 95 90≤CTT ≤ 93 80≤CTT ≤...
  • Page 66 CONTROL SYSTEM 12.7.5.2 Heat Sink Overheating Protection For DCI72/80 Delta HST <-2 -1,0,1 >2 HST≥ 81 79 ≤ HST < 81 75 ≤ HST < 79 73≤ HST< 75 71 ≤ HST ≤ 73 Norm Norm Norm HST < 71 Norm 12.7.6 System Over Power Protection Only For DCI72/80...
  • Page 67 CONTROL SYSTEM Deicing Operation Procedure ► O C T T h re s h o ld C O M P D e ic e F re q C h R V m a x. 1 2 m in u te s H E A T C O O L O F A N...
  • Page 68 CONTROL SYSTEM Deicing Operation Procedure ► Threshold COMP max. 12 minutes HEAT COOL OFAN EEVDeicerOpen T1=50 secondes;T2=36 secondes;T3=6 secondes 12.7.8 Condensate Water Over Flow Protection Each of the pins P1, P2, P3 can have two options: 1 – When it is shorted with P4 0 –...
  • Page 69 CONTROL SYSTEM Overflow when Overflow when unit is ON unit is OFF Overflow Water Level Normal OPER BLINK NLOAD is NLOAD forced to 0 PUMP 8 min 8 min 8 min 12.8 Indoor Unit Dry Contact Indoor unit Dry contact has two alternative functions that are selected by J9. Function Contact=open Contact=short...
  • Page 70 CONTROL SYSTEM 12.10 On Unit Controls and Indicators 12.10.1 Indoor Unit controller Controls and Indicatiors for All Models Except for Floor/Ceiling model During OFF, Fan, Cool, Heat, Dry, and Auto modes (for operation in other modes, see at the relevant spec paragraph): 1.

  • Page 71: Test Mode

    CONTROL SYSTEM 12.11 Test Mode 12.11.1 Entering Test Mode System can enter Test mode in two ways: Automatically when the following conditions exists for 30 minutes continuously: Mode = Cool, Set point = 16, Room temperature = 27(+1/−2), Outdoor temperature = 35(+2/-1) Mode = Heat, Set point = 30, Room temperature = 20±1, Outdoor temperature = 7±(+1/-2) Manually when entering diagnostics with the following settings: Mode = Cool, Set point = 16...
  • Page 72 CONTROL SYSTEM Model dependent parameters - DNG Unit (DNG50) (DNG60) (DNG72) (DNG80) Cap .Group NomLoadC NomLoadH ICTSTSpeed ICTVLSpeed ICTLSpeed ICTHSpeed ICTTSpeed MaxNLOADIF1C MaxNLOADIF2C MaxNLOADIF3C MaxNLOADIF4C MaxNLOADIF5C MinRTC MaxNLOADRTC MaxNLOADIF1H MaxNLOADIF2H MaxNLOADIF3H MaxNLOADIF4H MaxNLOADIF5H MaxNLOADRTH MaxRTH MaxNLOADPSC MaxNLOADPSH Model dependent parameters - WNG (WNG) Wall Mounted Models Parameter name NLOAD limits as a function of selected indoor fan speed...
  • Page 73 CONTROL SYSTEM Model dependent parameters - SX Unit (SX 18) (SX 24) (SX 30) Cap .Group NomLoadC NomLoadH MaxNLOADIF1C MaxNLOADIF2C MaxNLOADIF3C MaxNLOADIF4C MaxNLOADIF5C MinRTC MaxNLOADRTC MaxNLOADIF1H MaxNLOADIF2H MaxNLOADIF3H MaxNLOADIF4H MaxNLOADIF5H MaxNLOADRTH MaxRTH MaxNLOADPSC MaxNLOADPSH SM SX DCI 1-A.3 GB 12-17 CONTENT...
  • Page 74 CONTROL SYSTEM 12.12.2 Outdoor Units SW Parameters: Model dependent parameters for DCI50/60 Name Single DCI-50 Single DCI 60 MinFreqC MaxFreqC MinFreqH MaxFreqH NormAccel NormDecel Step1Freq Step2Freq Step3Freq OFVL OFLOWC OFMEDC OFMAXC OFLOWH OFMEDH OFMAXH OFANTESTMODEC OFANTESTMODEH OFDelTestMode CTTOH1 CTTOH2 CTTOH3 CTTOH4 CCROC1 11.4...
  • Page 75 CONTROL SYSTEM Model dependent parameters for DCI72Z Single Name DCI-72Z MinFreqC MaxFreqC MinFreqH MaxFreqH Step1Freq Step2Freq Step3Freq OFMinRPM OFMaxRPM NightRPM OFNNoiseMaxRPM CTTOH1 CTTOH2 CTTOH3 CTTOH4 CCROC1 12.5 CCROC2 13.3 CCROC3 14.1 CCROC4 14.9 ProtFreqLimit EEVMinOperOpenC EEVMaxOperOpenC EEVMinOperOpenH EEVMaxOperOpenH HeaterDisableFlag HST Enable OATLimitC OATLimit1H OATLimit2H...
  • Page 76 CONTROL SYSTEM Model dependent parameters for DCI72/80 Compressor Parameters Value MinOFFTime MinOnTime MaxCTT1 MaxCTT2 MinSpeedAsCTT1 MinSpeedAsCTT2 MaxSpeedC MaxSpeedH Step1RPS Step2RPS Step3RPS NormAcc (sec/RPS) NormDec (sec/RPS) Down1(Sec/RPS) Down2 (Sec/RPS) DeiceAcc (Sec/RPS) DeiceDec (Sec/RPS) EEV Parameters Value NormEEVRate EEVCompOFFOpen EEVCompOFFTime EEVMaxOpen EEVMinOperOpenC EEVMaxOperOpenC EEVMinOperOpenH EEVMaxOperOpenH...

  • Page 77: Exploded Views And Spare Parts Lists

    EXPLODED VIEWS AND SPARE PARTS LISTS EXPLODED VIEWS AND SPARE PARTS LISTS 13.1 Indoor Unit: SX 9, 12 DCI SM SX DCI 1-A.3 GB 13-1 CONTENT...
  • Page 78 Front panel 484001 Air inlet assy 4525333 Motor connect wire for SX25/35 373244 Right panel 371257 Vertical louver 370281 Air outlet 375209-01 AIRWELL Display panel 375209-05 WESPER Display panel 375209-16 ELECTRA Display panel 375209-17 JOHNSON Display panel 4521827 GORENJEN Display panel...
  • Page 79 EXPLODED VIEWS AND SPARE PARTS LISTS 13.3 Indoor Unit: SX 18, 24, 30 DCI SM SX DCI 1-A.3 GB 13-3 CONTENT...
  • Page 80 EXPLODED VIEWS AND SPARE PARTS LISTS 13.4 Indoor Unit: SX 18 DCI Part No Description 307980 Back panel 382333 Base panel EPS 4527244 Evap. Assy SX18 373246 Fan frame 455000604 Capacitor SX18 453206900 Transformer 323422 Motor support 293322 Centrifugal fan 4520931 Motor Assy SX18,24 4521029...
  • Page 81 EXPLODED VIEWS AND SPARE PARTS LISTS 13.5 Indoor Unit: SX 24, 30 DCI Part No. Description 484002 Grille 221554 Air Filter 373244 Right panel 307982 Frame Asy 371071-72 Display panel 470680004 Evaporator Assy 370280 Air Outlet Assy 285032 Draining Hose 372336 Horizontal louver front 372337...
  • Page 82 EXPLODED VIEWS AND SPARE PARTS LISTS 13.6 Outdoor Unit: GC 9, 12 DCI 13-6 SM SX DCI 1-A.3 GB CONTENT...
  • Page 83 EXPLODED VIEWS AND SPARE PARTS LISTS 13.7 Outdoor Unit: GC 9, 12 DCI Part No. Description Unit 433218 Front panel A 4526340 Air inlet ring-420 433223 Painting insulation plate 4526476 Axial fan OD=401 4527092 DC motor for DCI25/35 433215 Motor support 4523060 Base painting Assy.
  • Page 84 EXPLODED VIEWS AND SPARE PARTS LISTS 13.8 Outdoor Unit: GC 18 DCI 13-8 SM SX DCI 1-A.3 GB CONTENT...
  • Page 85 EXPLODED VIEWS AND SPARE PARTS LISTS 13.9 Outdoor Unit: GC 18 DCI Part No. Description Unit 433218 Front panel A 4526340 Air inlet ring-420 433223 Painting insulation plate 4526476 Axial fan OD=401 4526475 DC motor for DCI 50 4526457 Motor support 4527363 Base painting Assy.
  • Page 86 EXPLODED VIEWS AND SPARE PARTS LISTS 13.10 Outdoor Unit: GC 24, 30 DCI 13-10 SM SX DCI 1-A.3 GB CONTENT...
  • Page 87 EXPLODED VIEWS AND SPARE PARTS LISTS 13.11 Outdoor Unit: GC 24, 30 DCI Part No. Description Unit 465100000 Outlet grid 4523652 PAINTED LEFT CABINET ASSY 4523758 Nut M8 left 452960400 OUTDOOR FAN 461600002 4-Way Valve Assy. 452956700 4-way valve coil 4526522 Four-Way Valve R410A 452855600...

  • Page 88: Appendix A

    APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► OPERATION MANUAL SX 9, 12, 18, 24, 30 DCI ► INSTALLATION MANUAL SX 9, 12, 18, 24, 30 DCI SM SX DCI 1-A.3 GB 14-1 CONTENT...

This manual is also suitable for:

Gc 9 dciGc 12 dci

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