Airwell DLF 25 DCI Service Manual
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Airwell DLF 25 DCI Service Manual

Dlf dc inverter series
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REFRIGERANT
R410A
SM DLF 1-A.1 GB
DLF DC Inverter Series
Indoor Units
DLF 25 DCI
DLF 35 DCI
DLF 50 DCI
DLF 60 DCI
DLF 72 DCI
AUGUST – 2008
CONTENT
Outdoor Units
ONG3-25 DCI
ONG3-35 DCI
DCI 50
DCI 60
DCI 72Z
HEAT PUMP

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Summary of Contents for Airwell DLF 25 DCI

  • Page 1 DLF DC Inverter Series Indoor Units Outdoor Units DLF 25 DCI ONG3-25 DCI DLF 35 DCI ONG3-35 DCI DLF 50 DCI DCI 50 DLF 60 DCI DCI 60 DLF 72 DCI DCI 72Z REFRIGERANT R410A HEAT PUMP AUGUST – 2008 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. ELECTRICAL CONNECTIONS ................10-1 11.

  • Page 4: Introduction

    INTRODUCTION INTRODUCTION General The new DLF DC INVERTER concealed split unit range comprises the RC (heat pump) models as follow: ● DLF 25 ● DLF 35 ● DLF 50 ● DLF 60 ● DLF 72 Remote control compatibility The DLF unit is compatible with remote controls RC3, RC4, RCW1, RCW2, and RC7. Unlike standard units (fix RPM) that are selected according to their nominal capacity to overcome the maximum required load;...

  • Page 5: Tubing Connections

    INTRODUCTION Indoor Unit The indoor unit can fit easily to many types of residential and commercials applications. It includes: Water-pump drainage build-in. Emergency Water-float to prevent over flow. Horizontal/ Vertical installation build in. 2 options of return air location, on back of the unit or bellow the unit. DC BL motor with maximum fan speed flexibility.
  • Page 6 INTRODUCTION Accessories RCW Wall Mounted Remote Control The RCW remote control is mounted on the wall, and controls the unit either as an infrared remote control or as a wired controller. The wired controller can control up to 10 Indoor units with the same program settings and adjustments. For further details, please refer to the Technical Service Manual.

  • Page 7: Rating Conditions

    PRODUCT DATA SHEET PRODUCT DATA SHEET DLF 25 DCI Model Indoor Unit DLF 25 DCI Model Outdoor Unit ONG3-25 DCI Installation method of Pipe DUCTED Characteristics Units Cooling Heating Btu/hr 8500 (4780-12280) 11600 (5120-17060) Capacity (1) 2.5 (1.40-3.60) 3.4 (1.50-5.0) Power input (1) 0.625...

  • Page 8: Product Data Sheet

    PRODUCT DATA SHEET DLF 35 DCI Model Indoor Unit DLF 35 DCI Model Outdoor Unit ONG3-35 DCI Installation method of Pipe DUCTED Characteristics Units Cooling Heating Btu/hr 11940 (4780-14670) 14670 (5100-19790) Capacity (1) 3.5 (1.40-4.30) 4.3 (1.50-5.80) Power input (1) 0.95 1.16 EER (Cooling) or COP (Heating) (1)
  • Page 9 PRODUCT DATA SHEET DLF 50 DCI Model Indoor Unit DLF 50 DCI Model Outdoor Unit DCI 50 Installation method of Pipe DUCTED Characteristics Units Cooling Heating Btu/hr 17060 (5120-20470) 20470 (5120-25930) Capacity (1) 5.0 (1.50-6.00) 6.0 (1.50-7.60) Power input (1) 1.73 EER (Cooling) or COP (Heating) (1) 3.47...
  • Page 10 PRODUCT DATA SHEET DLF 60 DCI Model Indoor Unit DLF 60 DCI Model Outdoor Unit DCI 60 Installation method of Pipe DUCTED Characteristics Units Cooling Heating Btu/hr 20800 (5120-22860) 22520 (5120-26950) Capacity (1) 6.1 (1.50-6.70) 6.6 (1.50-7.90) Power input (1) EER (Cooling) or COP (Heating) (1) 3.25 3.81...
  • Page 11 PRODUCT DATA SHEET DLF 72 DCI Model Indoor Unit DLF 72 DCI Model Outdoor Unit DCI 72Z Installation method of Pipe DUCTED Characteristics Units Cooling Heating Btu/hr 23880 (5120-25600) 25420 (5120-30020) Capacity (1) 7.0 (1.50-7.50) 7.45 (1.50-8.80) Power input (1) EER (Cooling) or COP (Heating) (1) 3.68 Energy efficiency class...

  • Page 12: 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 13: Outline Dimensions

    OUTLINE DIMENSIONS OUTLINE DIMENSIONS Indoor Unit: DLF 25, 35, 50, 60, 72 629 (640 With air filter) Nominal Capacity 2.5 -5.0 kW 696 790 6.0-7.2 kW 1050 996 1090 SM DLF 1-A.1 GB CONTENT...
  • Page 14 OUTLINE DIMENSIONS Outdoor Unit: DCI 25, 35, 50 Outdoor Unit: DCI 60 SM DLF 1-A.1 GB CONTENT...
  • Page 15 OUTLINE DIMENSIONS Outdoor Unit: DCI 72Z SM DLF 1-A.1 GB CONTENT...

  • Page 16: Performance Data & Pressure Curves

    PERFORMANCE DATA & PRESSURE CURVES PERFORMANCE DATA & PRESSURE CURVES DLF 25 / ONG3-25 DCI 5.1.1 Cooling Capacity (kW) ID COIL ENTERING AIR DB/WB TEMPERATURE [C0] OD COIL ENTERING AIR DATA 22/15 24/17 27/19 29/21 32/23 DB TEMPERATURE [C 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range)
  • Page 17 PERFORMANCE DATA & PRESSURE CURVES 5.1.3 Heating ID COIL ENTERING AIR DB TEMPERATURE [°C] OD COIL ENTERING AIR DB/WB TEMPERATURE DATA [°C] 2.16 2.01 1.86 -15/-16 0.52 0.58 0.63 2.41 2.26 2.11 -10/-12 0.63 0.68 0.74 2.59 2.44 2.29 -7/-8 0.71 0.76 0.82...
  • Page 18 PERFORMANCE DATA & PRESSURE CURVES 5.1.5 Pressure Curves Cooling – Test Mode) Suction Pressure - Cooling (Technician Mode) 1400 1300 1200 1100 32/23 29/21 1000 27/19 24/17 22/15 Outdoor DB Temperature [°C] Discharge Pressure - Cooling (Technician Mode) 4000 3750 3500 3250 3000...
  • Page 19 PERFORMANCE DATA & PRESSURE CURVES 5.1.6 Pressure Curves Heating – Test Mode) Suction Pressure - Heating (Technician Mode) 1300 1200 1100 1000 Outdoor WB Temperature [°C] Discharge Pressure - Heating (Technician Mode) 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500...
  • Page 20 PERFORMANCE DATA & PRESSURE CURVES 5.1.7 Capacity Correction Factor Due to Tubing Length Cooling 1.05 1.00 0.95 0.90 0.85 0.80 0.75 Tubing Lenght [m] Heating 1.05 1.00 0.95 0.90 0.85 0.80 0.75 Tubing Lenght [m] SM DLF 1-A.1 GB CONTENT...
  • Page 21 PERFORMANCE DATA & PRESSURE CURVES DLF 35 / ONG3-35 DCI 5.2.1 Cooling Capacity (kW) ID COIL ENTERING AIR DB/WB TEMPERATURE [C0] OD COIL ENTERING AIR DATA 22/15 24/17 27/19 29/21 32/23 DB TEMPERATURE [C0] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range)
  • Page 22 PERFORMANCE DATA & PRESSURE CURVES 5.2.3 Heating ID COIL ENTERING AIR DB TEMPERATURE [°C] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [°C] 2.67 2.49 2.30 -15/-16 0.70 0.77 0.84 2.98 2.79 2.60 -10/-12 0.84 0.91 0.98 3.20 3.02 2.83 -7/-8 0.95 1.02 1.09...
  • Page 23 PERFORMANCE DATA & PRESSURE CURVES 5.2.5 Pressure Curves Cooling – Test Mode) Suction Pressure - Cooling (Technician Mode) 1400 1300 1200 1100 32/23 29/21 1000 27/19 24/17 22/15 Outdoor DB Temperature [°C] Discharge Pressure - Cooling (Technician Mode) 4000 3750 3500 3250 3000...
  • Page 24 PERFORMANCE DATA & PRESSURE CURVES 5.2.6 Pressure Curves Heating – Test Mode) Suction Pressure - Heating (Technician Mode) 1300 1200 1100 1000 Outdoor WB Temperature [°C] Discharge Pressure - Heating (Technician Mode) 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500...
  • Page 25 PERFORMANCE DATA & PRESSURE CURVES 5.2.7 Capacity Correction Factor Due to Tubing Length Cooling 1.05 1.00 0.95 0.90 0.85 0.80 0.75 Tubing Lenght [m] Heating 1.05 1.00 0.95 0.90 0.85 0.80 0.75 Tubing Lenght [m] 5-10 SM DLF 1-A.1 GB CONTENT...
  • Page 26 PERFORMANCE DATA & PRESSURE CURVES DLF 50 / ONG3-50 DCI 5.3.1 Cooling Capacity (kW) ID COIL ENTERING AIR DB/WB TEMPERATURE [C0] OD COIL ENTERING AIR DATA 22/15 24/17 27/19 29/21 32/23 DB TEMPERATURE [C0] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range)
  • Page 27 PERFORMANCE DATA & PRESSURE CURVES 5.3.3 Heating ID COIL ENTERING AIR DB TEMPERATURE [°C] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [°C] 3.88 3.61 3.34 -15/-16 1.04 1.14 1.25 4.32 4.05 3.78 -10/-12 1.25 1.36 1.46 4.65 4.38 4.11 -7/-8 1.41 1.52 1.62...
  • Page 28 PERFORMANCE DATA & PRESSURE CURVES 5.3.5 Pressure Curves Cooling – Test Mode) Suction Pressure - Cooling (Technician Mode) 1400 1300 1200 1100 32/23 29/21 1000 27/19 24/17 22/15 Outdoor DB Temperature [°C] Discharge Pressure - Cooling (Technician Mode) 4000 3750 3500 3250 3000...
  • Page 29 PERFORMANCE DATA & PRESSURE CURVES 5.3.6 Pressure Curves Heating – Test Mode) Suction Pressure - Heating (Technician Mode) 1300 1200 1100 1000 Outdoor WB Temperature [°C] Discharge Pressure - Heating (Technician Mode) 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500...
  • Page 30 PERFORMANCE DATA & PRESSURE CURVES 5.3.7 Capacity Correction Factor Due to Tubing Length Cooling 1.05 1.00 0.95 0.90 0.85 0.80 0.75 Tubing Lenght [m] Heating 1.05 1.00 0.95 0.90 0.85 0.80 0.75 Tubing Lenght [m] SM DLF 1-A.1 GB 5-15 CONTENT...
  • Page 31 PERFORMANCE DATA & PRESSURE CURVES DLF 60 / DCI 60 (GC24) 5.4.1 Cooling Capacity (kW) ID COIL ENTERING AIR DB/WB TEMPERATURE [C0] OD COIL ENTERING AIR DATA 22/15 24/17 27/19 29/21 32/23 DB TEMPERATURE [C0] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range)
  • Page 32 PERFORMANCE DATA & PRESSURE CURVES 5.4.3 Heating ID COIL ENTERING AIR DB TEMPERATURE [°C] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [°C] 4.20 3.91 3.61 -15/-16 1.04 1.14 1.26 4.68 4.38 4.09 -10/-12 1.25 1.36 1.46 5.03 4.74 4.45 -7/-8 1.41 1.52 1.62...
  • Page 33 PERFORMANCE DATA & PRESSURE CURVES 5.4.5 Pressure Curves Cooling – Test Mode) Suction Pressure - Cooling (Technician Mode) 1400 1300 1200 1100 32/23 29/21 1000 27/19 24/17 22/15 Outdoor DB Temperature [°C] Discharge Pressure - Cooling (Technician Mode) 4000 3750 3500 3250 3000...
  • Page 34 PERFORMANCE DATA & PRESSURE CURVES 5.4.6 Pressure Curves Heating – Test Mode) Suction Pressure - Heating (Technician Mode) 1300 1200 1100 1000 Outdoor WB Temperature [°C] Discharge Pressure - Cooling (Technician Mode) 4000 3750 3500 3250 3000 32/23 2750 29/21 2500 27/19 2250...
  • Page 35 PERFORMANCE DATA & PRESSURE CURVES 5.4.7 Capacity Correction Factor Due to Tubing Length Cooling 1.05 1.00 0.95 0.90 0.85 0.80 0.75 Tubing Lenght [m] Heating 1.05 1.00 0.95 0.90 0.85 0.80 0.75 Tubing Lenght [m] 5-20 SM DLF 1-A.1 GB CONTENT...
  • Page 36 PERFORMANCE DATA & PRESSURE CURVES DLF 72 / DCI 72Z 5.5.1 Cooling Capacity (kW) ID COIL ENTERING AIR DB/WB TEMPERATURE [C0] OD COIL ENTERING AIR DATA 22/15 24/17 27/19 29/21 32/23 DB TEMPERATURE [C0] 80 - 110 % of nominal -10 - 20 (protec- 80 - 105 % of nominal...
  • Page 37 PERFORMANCE DATA & PRESSURE CURVES 5.5.3 Heating ID COIL ENTERING AIR DB TEMPERATURE [°C] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [°C] 7.74 4.41 4.08 -15/-16 1.21 1.34 1.46 5.28 4.95 4.62 -10/-12 1.46 1.58 1.71 5.68 5.35 5.02 -7/-8 1.65 1.77 1.89...
  • Page 38 PERFORMANCE DATA & PRESSURE CURVES 5.5.5 Pressure Curves Cooling – Test Mode) Suction Pressure - Cooling (Technician Mode) 1400 1300 1200 1100 32/23 29/21 1000 27/19 24/17 22/15 Outdoor DB Temperature [°C] Discharge Pressure - Cooling (Technician Mode) 4000 3750 3500 3250 3000...
  • Page 39 PERFORMANCE DATA & PRESSURE CURVES 5.5.6 Pressure Curves Heating – Test Mode) Suction Pressure - Heating (Technician Mode) 1300 1200 1100 1000 Outdoor WB Temperature [°C] Discharge Pressure - Heating (Technician Mode) 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500...
  • Page 40 PERFORMANCE DATA & PRESSURE CURVES 5.5.7 Capacity Correction Factor Due to Tubing Length Cooling 1.05 1.00 0.95 0.90 0.85 0.80 0.75 Tubing Lenght [m] Heating 1.05 1.00 0.95 0.90 0.85 0.80 0.75 Tubing Lenght [m] * Pre-charged to 30m. SM DLF 1-A.1 GB 5-25 CONTENT...

  • Page 41: Airflow Curves

    AIRFLOW CURVES AIRFLOW CURVES Model: DLF 25 DCI 2.5KW AIR FLOW CHART 10PA 30PA High SHigh SMed Slow 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 M ³ /HR Model: DLF 35 DCI 3.5KW AIR FLOW CHART...
  • Page 42 AIRFLOW CURVES Model: DLF 50 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 Model: DLF 60 DCI 6KW AIR FLOW CHART 10PA 20PA...
  • Page 43 AIRFLOW CURVES Model: DLF 72 DCI 7.2KW 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 44: Sound Level Characteristics

    SOUND LEVEL CHARACTERISTICS SOUND LEVEL CHARACTERISTICS Sound Pressure Level 2m duct in 2m duct in supply air area return air area static pressure Unit test point 1.4m (2(AB) Mic. Figure 1 Soud Pressure Level Spectrum (Measured as Figure 1) DLF 25 DLF 35 FAN SPEED LINE...
  • Page 45 SOUND LEVEL CHARACTERISTICS DLF 50 DLF 60 DLF 72 FAN SPEED LINE SM DLF 1-A.1 GB CONTENT...
  • Page 46 SOUND LEVEL CHARACTERISTICS Outdoor units Unit Mic. Ground Figure 2 Sound Pressure Level Spectrum (Measured as Figure 2 DCI 25 Cooling DCI 25 Heating DCI 35 Cooling DCI 35 Heating SM DLF 1-A.1 GB CONTENT...
  • Page 47 SOUND LEVEL CHARACTERISTICS DCI 50 Cooling DCI 50 Heating DCI 60 Cooling DCI 60 Heating SM DLF 1-A.1 GB CONTENT...
  • Page 48 SOUND LEVEL CHARACTERISTICS DCI 72Z Cooling DCI 72Z Heating SM DLF 1-A.1 GB CONTENT...

  • Page 49: Electrical Data

    ELECTRICAL DATA ELECTRICAL DATA Single Phase Units MODEL DLF 25-35 DLF 50-60 DLF 72 To Indoor To Indoor or Outdoor To Outdoor Power Supply 1PH – 230V – 50 Hz 1PH – 230V – 50 Hz 1PH – 230V – 50 Hz Max Current, A 10.5 Circuit Breaker...

  • Page 50: Wiring Diagrams

    WIRING DIAGRAMS WIRING DIAGRAMS Indoor Unit: DLF 25, 35, 50, 60, 72 DCI Legend - External chock coil - DIP switch To Outdoor - Display PCB - Fan motor unit - Main ground point EARTH N COM - Controller - Water level switch Fresh air Water pump Connection to...
  • Page 51 WIRING DIAGRAMS Outdoor Unit: DCI 50/60 9.2.1 DCI 50/60 for Indoor Power Supply OUTDOOR UNIT CIRCUIT DIAGRAM CHOKE OFAN COIL REVERSE BASE COMP VALVE HEATER (OPTIONAL) 1 2 3 4 U V W ODU CONTROLLER PCBA EARTH N COM N-COM EMI FILTER PCBA EARTH EARTH...
  • Page 52 WIRING DIAGRAMS 9.2.3 Outdoor Unit: DCI 72Z SM DLF 1-A.1 GB CONTENT...

  • Page 53: Electrical Connections

    ELECTRICAL CONNECTIONS ELECTRICAL CONNECTIONS 10.1 DLF 25, 35, 50 1PH 1. Indoor Unit 2. Power Supply Cable 3. Outdoor Unit 4. Interconnecting Cable: 2.5-3.5KW (4x1.5mm 5.0-6.0KW (4x2.5mm N/3 L/4 L/4 C/5 5. Wireless Remote Control 6. Display Unit 7. Display Connector 220/240V~50Hz 220/240V~50Hz 10.2...

  • Page 54: Refrigeration Diagrams

    REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS 11.1 DLF 25 / 35 / 50 / 60 / 72 DCI Cooling Mode Heating Mode E E V SM DLF 1-A.1 GB 11-1 CONTENT...
  • Page 55 TUBING CONNECTIONS TUBING CONNECTIONS TUBE (Inch) ¼” ⅜” ½” ⅝” 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 56: Control System

    CONTROL SYSTEM CONTROL SYSTEM 13.1 General Functions and Operating RulesThe 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 man- ual.
  • Page 57 CONTROL SYSTEM SW 35V14 and above NLOAD Target Frequency [Hz] 0 < NLOAD ≤ MinFreq MinFreq MaxFreq MinFreq ˜ > MinFreq {min (NLOAD, LoadDeadZo MinFreq} MinFreq LoadDeadZo MinFreq Differences between Old and New ODU DCI/DCR software Unit Current software New software 35V12 35V14 Comment:...
  • 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 13.1.4 Frequency Changes Control When the unit is running normally , the compressor frequency change rate is 1 Hz/sec.
  • Page 59 CONTROL SYSTEM 13.1.6 Minimum On and Off Time 3 minutes 13.1.7 Indoor Fan Control 8 Indoor fan speeds are determined for each model. 4 speeds for cool/dry/fan modes and 4speeds for heat mode. When user sets the indoor fan speed to a fixed speed (Low/ Medium/ High), unit will operate constantly at set speed.
  • Page 60 CONTROL SYSTEM OFAN State 3 Degrees Change To Higher at Cool Mode OFAN Cool state (*1) 3 Degrees Change To lower Note: Periorities A>B>C OFAN Cool state If State C, change to B (*1) If State B, change to A 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 13.1.9 EEV (Electronic Expansion Valve) Control 13.1.9.1 EEV Control for DCI25/35/50/60 EEV opening is defined as EEV = EEV + EEV is the initial EEV opening as a function of the compressor frequency, operation mode, unit model and capacity. is a correction value for the EEV opening that is based on the compressor temperature.
  • Page 62 CONTROL SYSTEM 13.1.10 RV(Reversing Valve) Control Reversing valve is on in heat mode. Switching of RV state is done only after compressor is off for over 3 minutes. 13.1.10.1 Ioniser Control Ioniser is on when unit is on ,AND indoor fan is on ,AND Ioniser power switch (on grille) is on. 13.1.10.2 Base Heater Control The base heater will be working only when RV is “ON”...
  • Page 63 CONTROL SYSTEM 13.1.13.2 Indoor Fan Control in Heating Mode Indoor fan speed depends on the indoor coil temperature: 13.1.14 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 (.T). Unit will switch from cool to heat when compressor is off for 3 minutes, and .T <...
  • Page 64 CONTROL SYSTEM 13.1.16.2 Indoor Coil Defrost Protection — DLF Trend Fast Increasing Increasing No Change Decreasing Fast Decreasing < -2 [-2, 0) [0, 2) [2, 4) [4, 6) Norm Norm [6, 8] Norm Norm Norm > 8 Norm 13.1.16.3 Indoor Coil Overheating Protection ICT Trend Fast Decreasing Decreasing...
  • Page 65 CONTROL SYSTEM 13.1.17.2 Compressor Over Current Protection Only For DCI25/35/50/60/72Z Stop-Compresor CCROC4 HzDown2 CCROC3 HzDown1 CCROC2 Stop-Rise CCROC1 Normal 13.1.18 Heat Sink Overheating Protection 13.1.08.1 Heat Sink Overheating Protection For DCI25/35/50/60/72Z HST Trend Fast Decreasing Decreasing No Change Increasing Fast Increasing ≥...
  • Page 66 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 67 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 Operating the Unit from Mode Button (On display) 13.1.21 Forced operation allows to start, stop and operate in Cooling or Heating, in pre-set temperature according to the following table: Forced operation Mode...
  • Page 68 CONTROL SYSTEM 13.1.22.2 Outdoor Unit controller Indicatiors Unit has three LED’s. SB LED is ON when power is ON (230 VAC, even when no communication). STATUS LED is ON when COMP is ON, and Blinks according to diagnostics mode definitions when either fault or protection occurs.
  • Page 69 CONTROL SYSTEM 13.1.23.3 Main PCB − DLF MCU Flash Port IF Motor ICTE sensor ICT sensor RAT sensor M2L Port DIP Switch WATER level Unit On output ALARM output CLOCK RCW Power 16 Pins Display (not used) To Display Water Pump Fresh Air 13-14 SM DLF 1-A.1 GB...
  • Page 70 CONTROL SYSTEM 13.1.24 Self Test Jumper(J1)) ● Jumper for production line only, never install jumper on site! 13.1.25 DIP Switch and Jumper Settings ● CK - Dip switch default setting for each model MODEL 2.5 KW 3.5 KW 5.0 KW 6.0 KW 7.0 KW ●...
  • Page 71 CONTROL SYSTEM ● Presence Detector/Power Shedding Selection Select the functions of dry contact PD/PS by setting the Dip switch J9 Selection Presence Detector Power Shedding ● Installation of height compensation settings (By installer) The compensation settings according to installation height should be set by using the dip switch J12, J13 on the controller PCB Installation Height Installation height...
  • Page 72 CONTROL SYSTEM IDU Diagnostic Table. ● Alarm Output The Alarm Output dry contact will be on (closed), when a predefined set faults occur. The fault set is defined under diagnostics section. The alarm output will be off (open), when the predefined fault is cleared. The indoor alarm outputs are defined according to the following IDU Diagnostic Table: Problem ICT is disconnected...
  • Page 73 CONTROL SYSTEM OUD Diagnostic Table AO - Alarm output Problem OCT is disconnected OCT is shorted CTT is disconnected CTT is shorted HST is disconnected (when enabled) HST is shorted (when enabled) OAT is disconnected (when enabled) OAT is shorted (when enabled) TSUC is disconnected (when enabled) TSUC is shorted (when enabled) IPM Fault...
  • Page 74 CONTROL SYSTEM 13.1.25 Outdoor Unit Controller 13.1.25.1 Outdoor Unit Controller - Jumper setting JP9 Jumper Layout Reserved (PIN 9) ODU3 (PIN 7) ODU2 (PIN 5) ODU1 (PIN 3) ODU0 (PIN 1) GND (PIN 10) GND (PIN 8) (PIN 6) (PIN 4) (PIN 2) 13.1.26 ODU Model Selection...
  • Page 75 CONTROL SYSTEM 13.2.3 Unit Operation in Test Mode In test mode, the unit will operate in fixed settings according to the indoor fan speed setting: Indoor FAN Speed Setting Unit Setting Minimum Capacity Setting Turbo Nominal Capacity Setting Auto Maximum Capacity Setting During test mode, protections are disabled, except for stop compressor status.
  • Page 76 CONTROL SYSTEM 13.3.2 Family Dependent Parameter Name BasicCV1 BasicCV2 BasicCV3 BasicCV4 Max_Swg Min_H_Angle Max_H_Angle Min_C_Angle Max_C_Angle MTR_Cls_Dir MTR_Cls_Dir_V Max_Angle_V Min_Angle_V Max_Swg_V IFSPCHNA IFSPCHND IFSPCHAA IFSPCHAD IFSTARTSPEED ICTSTSpeed ICTVLSpeed ICTLSpeed ICTHSpeed ICTTSpeed NLOADHForcedValue ICTOH1 ICTOH2 ICTOH3 ICTOH4 ICTOH5 ICTOH6 ICTEEnable SM DLF 1-A.1 GB 13-21 CONTENT...
  • Page 77 CONTROL SYSTEM 13.3.3 Indoor Model Parameters: Indoor Family Indoor Model Parameter IFVLOWC IFLOWC IFMEDC 1050 1050 IFHIGHC 1100 1170 1200 IFTURBOC 1000 1060 1170 1240 1280 IFVLOWH IFLOWH IFMEDH 1050 1050 IFHIGHH 1100 1170 1200 IFTURBOH 1000 1060 1220 1240 1280 Cap .Group NomLoadC...
  • Page 78 CONTROL SYSTEM 13.3.4 Outdoor Parameters General Parameters ( for every software): Name Default Value MinOFFTime MinONTime OFSPCH Down1 Down2 DImin DImax TimeD DTmin DTmax CTMRUP HSTOH1 HSTOH2 HSTOH3 HSTOH4 HSTOH5 HSTOHDelta1 HSTOHDelta2 EEVCVTConst BalanceTime EEVInitOpen SM DLF 1-A.1 GB 13-23 CONTENT...
  • Page 79 CONTROL SYSTEM 13.3.5 ODU Model Dependent Parameters ( 35V12 ) Outdoor Model Single Single Single Single Parameter DCI-25 DCI-35 DCI-50 DCI 60 MinFreqC MaxFreqC MinFreqH MaxFreqH NormAccel NormDecel Step1Freq Step2Freq Step3Freq OFVL OFLOWC OFMEDC OFMAXC OFLOWH OFMEDH OFMAXH OFANTESTMODEC OFANTESTMODEH OFDelTestMode CTTOH1 CTTOH2...
  • Page 80 CONTROL SYSTEM 13.3.6 ODU Model Dependent Parameters ( 35V14 ) Outdoor Model Single Single Single Single Parameter DCI-25 DCI-35 DCI-50 DCI 60 MinFreqC MaxFreqC MaxFreqCRunPhase MinFreqH MaxFreqH MaxFreqHRunPhase LoadDeadZoneC LoadDeadZoneH NormAccel NormDecel Step1Freq Step2Freq Step3Freq OFVL OFLOWC OFMEDC OFMAXC OFLOWH OFMEDH OFMAXH OFANTESTMODEC...
  • Page 81 CONTROL SYSTEM 13.3.7 ODU Model Dependent Parameters ( 36V1-S01 ) Outdoor Model Single Parameter 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...

  • Page 82: 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 14.6 below.
  • Page 83 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 14.5.3 , 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 84 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 85 TROUBLESHOOTING Problem Model A Model B Model C Model D CN / LSN Units only 14.3.2 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 86 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 87 TROUBLESHOOTING Fault Probable Cause Corrective Action Switch unit to STBY and restart If still not ok check compressor (14.5.4) 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 88 TROUBLESHOOTING 14.5.4 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). 14.5.5 Checking the Reverse Valve (RV). Running in heating mode, check the voltage between two pins of reverse valve connector, normal voltage is 220VAC.

  • Page 89: Exploded Views And Spare Parts Lists

    EXPLODED VIEWS AND SPARE PARTS LISTS EXPLODED VIEWS AND SPARE PARTS LISTS 15.1 Indoor Unit: DLF 25/35/50 SM DLF 1-A.1 GB 15-1 CONTENT...
  • Page 90 EXPLODED VIEWS AND SPARE PARTS LISTS 15.2 Indoor Unit: DLF 25 DCI Item Description Quantity 418400 Coil 7mm 2r 3c R410 DLF35 418214 Float support 418951 Air filter AL 750 418910 Condensat drainag basin small 418716 Over floe float sensor...
  • Page 91 EXPLODED VIEWS AND SPARE PARTS LISTS 15.3 Indoor Unit: DLF 35 DCI Item Description Quantity 418400 Coil 7mm 2r 3c R410 DLF35 418214 Float support 418951 Air filter AL 750 418910 Condensat drainag basin small 418716 Over floe float sensor 418700 Controller DCI ECP 438778...
  • Page 92 EXPLODED VIEWS AND SPARE PARTS LISTS 15.4 Indoor Unit: DLF 50 DCI Item Description Quantity 418401 Coil 7mm 3r 4c R410 DLF50 418214 Float support 418951 Air filter AL 750 418910 Condensat drainag basin small 418716 Over floe float sensor 418700 Controller DCI ECP 438778...
  • Page 93 EXPLODED VIEWS AND SPARE PARTS LISTS 15.5 Indoor Unit: DLF 60 / 72 DCI SM DLF 1-A.1 GB 15-5 CONTENT...
  • Page 94 EXPLODED VIEWS AND SPARE PARTS LISTS 15.6 Indoor Unit: DLF 60 DCI Item Description Quantity 418402 Coil 7mm 3r 5c R410 DLF60 418214 Float support 418952 Air filter AL 1050 418912 Condensat drainag basin large 418716 Over floe float sensor 418700 Controller DCI ECP 438778...
  • Page 95 EXPLODED VIEWS AND SPARE PARTS LISTS 15.7 Indoor Unit: DLF 72 DCI Item Description Quantity 418403 Coil 7mm 3r 6c R410 DLF72 418214 Float support 418952 Air filter AL 1050 418912 Condensat drainag basin large 418716 Over floe float sensor 418700 Controller DCI ECP 438778...
  • Page 96 EXPLODED VIEWS AND SPARE PARTS LISTS 15.8 Outdoor Unit: DCI 50 15-8 SM DLF 1-A.1 GB CONTENT...
  • Page 97 EXPLODED VIEWS AND SPARE PARTS LISTS 15.9 Outdoor Unit: DCI 50 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 98 EXPLODED VIEWS AND SPARE PARTS LISTS 15.10 Outdoor Unit: DCI 60 15-10 SM DLF 1-A.1 GB CONTENT...
  • Page 99 EXPLODED VIEWS AND SPARE PARTS LISTS 15.11 Outdoor Unit: DCI 60 No.. Item Description Quantity 4517144 FAN COVER PP+UV 452795700 PAINTED LEFT CABINET ASSY 4521642 Painted Right Cabinet and Isolation Assy. 4523141 M10 Hexagon locked nut M10 4526841 cusion for fan 4526510 FAN D=460mm (3 blade) 453026500...
  • Page 100 EXPLODED VIEWS AND SPARE PARTS LISTS 15.12 Outdoor Unit: DCI 72Z 15-12 SM DLF 1-A.1 GB CONTENT...
  • Page 101 EXPLODED VIEWS AND SPARE PARTS LISTS 15.13 Outdoor Unit: DCI 72Z Item Description Quan. 465100000 Grill/ DCI Trio 4523652 PAINTED LEFT CABINET ASSY 4523758 Nut M8 left 452960400 Outdoor Fan 461600023 4-Way Valve Assy. 4522509 4-way Valve Coil 4526522 FOUR-WAY VALVE R410A 466130002R DC Motor 70W 8P 4522601...
  • Page 102 APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► REMOTE CONTROL RC3 ► REMOTE CONTROL RC4 ► REMOTE CONTROL RC7 ► INSTALLATION AND OPERATION MANUAL DLF 25, 35, 50, 60, 72 SM DLF 1-A.1 GB 16-1 CONTENT...
  • Page 103 APPENDIX A REMOTE CONTROL MANUAL CONTENT PRECAUTIONS ....1-2 USING THE REMOTE CONTROL UNIT .....3 OPERATION ......4-8 Thank you for purchasing our Room Air Conditioner. Before using your air-conditioner, please read this operating instruction carefully and keep it for future reference. 468040071/01 16-2 SM DLF 1-A.1 GB...
  • Page 104 APPENDIX A PRECAUTIONS PRECAUTIONS DISPLAY Information are displayed when the remote control unit is switched on. Operation Mode Automatic Heating Cooling Dehumidification (dry) Fan only Displayed when data trasmitted Or remote control unit lock Displayed when the timer is set Displayed when the timer on is set and activated and activated.
  • Page 105 APPENDIX A SENSOR TRANSMITTER Atemperature sensor inside the remote control When you press the buttons unit detects the room temperature. of the remote control unit, mark appears on the FAN SPEED SELECTOR BUTTON display to transmit the setting Fan speed is automatically changes to the receiver in the selected by the microcomputer.
  • Page 106 APPENDIX A USING THE REMOTE CONTROL UNIT USING THE REMOTE CONTROL UNIT HOW TO INSTALL BATTERIES OPERATION WITH THE REMOTE CONTROL UNIT Remove the lid in the rear part of the remote control unit. Insert two AAA alkaline batteries of 1,5 V-DC. Make sure the batteries point in the direction marked in the battery compartment.
  • Page 107 APPENDIX A OPERATION OPERATION HOW TO SET THE PRESENT TIME THE DISPLAY SHOWS THE 1. Press the SET button for five seconds. The SELECTED TEMPERATURE. time indication alone flashes. 2. Press the + or - buttons until the present time 4.
  • Page 108 APPENDIX A OPERATION OPERATION AUTOMATIC OPERATION DEHUMIDIFYING (DRY) 1. Set the MODE selector to AUTO 1. Set the MODE selector switch to “DRY” 2. Press the ON/OFF button and switch the air 2. Press the ON/OFF button and switch the air condioner ON.
  • Page 109 APPENDIX A OPERATION OPERATION ADJUSTING THE FAN SPEED SLEEP MODE AUTOMATIC The SLEEP mode enables you to save energy. 1. Set the MODE selector to cool, dry or heat. Simply set the FAN SPEED selector to the 2. Press the SLEEP button. position .
  • Page 110 APPENDIX A OPERATION OPERATION A) HOW TO SET THE ON TIME I FEEL TEMP FUNCTION OPERATION 1. Press the TIMER button Press button IFEEL to activate the IFEEL to select the desired function. Thermometer sign will appear on the timer. LCD operation display .
  • Page 111 APPENDIX A OPERATION OPERATION D) HOW TO CLEAR THE TIMER 1. Press the TIMER button to select the timer. 2. Press the CLEAR button if you want that every timer operation will be cleared. NOTE If the procedure to set the timer is not completed, by pushing the SET button, within 15 seconds the timer operation will be cancelled and the last set-up is restored.
  • Page 112 APPENDIX A REMOTE CONTROL MANUAL CONTENT PRECAUTIONS ....1-2 USING THE REMOTE CONTROL UNIT .....3 OPERATION ......4-10 Thank you for purchasing our Room Air Conditioner. Before using your air-conditioner, please read this operating instruction carefully and keep it for future reference. 468040125/01 SM DLF 1-A.1 GB 16-11...
  • Page 113 APPENDIX A PRECAUTIONS PRECAUTIONS DISPLAY Information are displayed when the remote control unit is switched on. Operation Mode Automatic Heating Cooling Fan only Dehumidification (dry) Displayed when data trasmitted Or remote control unit lock Shows the type of timer Clock (hours and minutes) Displayed when the timer on is set and activated Displayed when the timer off is set and activated Displayed in Sleep Mode Operation...
  • Page 114 APPENDIX A FAN SPEED SELECTOR BUTTON SENSOR TRANSMITTER Atemperature When you press the Fan speed is automatically selected by sensor inside the buttons of the remote the microcomputer. remote control unit control unit, the Low speed. Medium speed. detects the room mark appears on the High speed.
  • Page 115 APPENDIX A USING THE REMOTE CONTROL UNIT USING THE REMOTE CONTROL UNIT HOW TO INSTALL BATTERIES OPERATION WITH THE REMOTE CONTROL UNIT Remove the lid in the rear part of the remote control unit. Insert two AAA alkaline batteries of 1,5 V-DC. Make sure the batteries point in the direction marked in the battery compartment.
  • Page 116 APPENDIX A OPERATION OPERATION HOW TO SET THE PRESENT TIME HEATING 1. Press the SET button for five seconds. The 1. Set the MODE selector to HEAT time indication alone flashes. 2. Press the ON/OFF button and switch the air 2.
  • Page 117 APPENDIX A OPERATION OPERATION AUTOMATIC OPERATION DEHUMIDIFYING (DRY) 1. Set the MODE selector to AUTO 1. Set the MODE selector switch to “DRY” 2. Press the ON/OFF button and switch the air 2. Press the ON/OFF button and switch the air condioner ON.
  • Page 118 APPENDIX A OPERATION OPERATION ADJUSTING THE FAN SPEED SLEEP MODE AUTOMATIC The SLEEP mode enables you to save energy. 1. Set the MODE selector to cool, dry or heat. Simply set the FAN SPEED selector to the 2. Press the SLEEP button. position .
  • Page 119 APPENDIX A OPERATION OPERATION I FEEL TEMP FUNCTION OPERATION SETTING THE TIMER Press button IFEEL to activate the IFEEL There are four timers that can be selected on function. Thermometer sign will appear on the the remote control.Two daily timers (designated LCD operation display .
  • Page 120 APPENDIX A OPERATION OPERATION B) HOW TO SET THE OFF TIME ADJUSTING THE AIR FLOW DIRECTION 1. Press the TIMER button to select the desired HORIZONTAL (manual) timer. The horizontal air flow can be adjusted by moving 2. Press the SET button till the OFF sign blinks. the vertical vanes to the left or right, as indicated 3.
  • Page 121 APPENDIX A REMOTE CONTROL MANUAL CONTENT PRECAUTIONS ....1-2 USING THE REMOTE CONTROL UNIT .....3 OPERATION ......4-9 Thank you for purchasing our Room Air Conditioner. Before using your air-conditioner, please read this operating instruction carefully and keep it for future reference. 468040197/01 16-20 SM DLF 1-A.1 GB...
  • Page 122 APPENDIX A PRECAUTIONS PRECAUTIONS DISPLAY Information are displayed when the remote control unit is switched on. Operation Mode Automatic Heating Cooling Fan only Dehumidification (dry) Displayed when data trasmitted Or remote control unit lock Shows the type of timer Clock (hours and minutes) Displayed when the timer on is set and activated Displayed when the timer off is set and activated Displayed in Sleep Mode Operation...
  • Page 123 APPENDIX A TEMPERATURE SETTING BUTTONS TRANSMITTER SENSOR - (cooler) Press this button to decrease the Atemperature When you press the set temperature. sensor inside the buttons of the remote + (warmer) Press this button to increase the remote control unit control unit, the set temperature.
  • Page 124 APPENDIX A USING THE REMOTE CONTROL UNIT USING THE REMOTE CONTROL UNIT HOW TO INSTALL BATTERIES OPERATION WITH THE REMOTE CONTROL UNIT Remove the lid in the rear part of the remote control unit. Insert two AAA alkaline batteries of 1,5 V-DC. Make sure the batteries point in the direction marked in the battery compartment.
  • Page 125 APPENDIX A OPERATION OPERATION 4. Press the FAN SPEED button to select the fan HOW TO SET THE PRESENT TIME speed. 5. Press the FLAP buttons and adjust the air 1. Press the SET button for five seconds. The flow direction as desired(see adjustment of time indication alone flashes.
  • Page 126 APPENDIX A OPERATION OPERATION AUTOMATIC OPERATION DEHUMIDIFYING (DRY) 1. Set the MODE selector to AUTO 1. Set the MODE selector switch to “DRY” 2. Press the ON/OFF button and switch the air 2. Press the ON/OFF button and switch the air condioner ON.
  • Page 127 APPENDIX A OPERATION OPERATION ADJUSTING THE FAN SPEED SLEEP MODE AUTOMATIC The SLEEP mode enables you to save energy. 1. Set the MODE selector to cool, dry or heat. Simply set the FAN SPEED selector to the 2. Press the SLEEP button. position .
  • Page 128 APPENDIX A OPERATION OPERATION I FEEL TEMP FUNCTION OPERATION SETTING THE TIMER Press button IFEEL to activate the IFEEL There are four timers that can be selected on function. Thermometer sign will appear on the the remote control.Two daily timers (designated LCD operation display .
  • Page 129 APPENDIX A OPERATION OPERATION 3. Press the + or - (HOUR) button until the ADJUSTING THE AIR FLOW DIRECTION desired value is displayed. 4. Press the SET button to activate the timer. HORIZONTAL (manual) The horizontal air flow can be adjusted by moving the vertical vanes to the left or right, as indicated in the following figures.
  • Page 130 APPENDIX A OPERATION OPERATION Use the FLAP button on the remote control to adjust the position of the flap. If you move the flap by hand, the factual flap position and the flap position on the remote control may no longer match.
  • Page 131 APPENDIX A CONCEALED AIR CONDITIONER WITH ELECTRONIC CONTROL SERIES LSN DCI INSTALLATION INSTRUCTIONS 16-30 SM DLF 1-A.1 GB CONTENT...

  • Page 132: Getting Started

    APPENDIX A Getting Started… REQUIRED TOOLS LIST 1. Screw driver 8. Gas leak detector 15. Torque wrench 2. Electric drill, 9 Measuring tape 18 Nm (1.8 kgf.m) hole core drill (60 mm) 10. Thermometer 45 Nm (4.5 kgf.m) 3. Hexagonal wrench 11.
  • Page 133 APPENDIX A SAFETY PRECAUTIONS Read the following "SAFETY Incorrect installation due to ignoring of the PRECAUTIONS" carefully before installation. instruction will cause harm or damage, and the Electrical work must be installed by a seriousness is classified by the following licensed electrician.

  • Page 134: Installation/Service Tooling

    APPENDIX A Installation/Service Tooling for R410A Changes Gauge manifold As the working pressure is high, it is impossible to measure the working pressure using conventional gauges. In order to prevent any other refrigerant from being charged, the port diameters have been changed. Charge In order to increase pressure resisting strength, hose...
  • Page 135 APPENDIX A CAUTION R410A Air Conditioner Installation THIS AIR CONDITIONER ADOPTS THE Moreover, do not use the existing piping NEW HFC REFRIGERANT (R410A) because there are some problems with WHICH DOES NOT DESTROY OZONE pressure fittings and possible impurities LAYER. R410A refrigerant is apt to be in existing piping.

  • Page 136: Attached Accessories

    APPENDIX A ATTACHED ACCESSORIES Description Amount Name Technician’s installation Installation instructions manual Instruction manual for Operation instructions for remote remote control Instruction manual for unit Operation instructions display Remote control including Operating the air-conditioner batteries Hanging the remote control on Remote control bracket the wall Operating and main working...

  • Page 137: General Information

    APPENDIX A GENERAL INFORMATION Indoor Unit The unit can be installed as concealed unit above a false ceiling or as vertical floor mounted. Since the unit is a concealed and not a ducted unit, it is very important that the ducts length will fit the maximum external static pressure allowed in the table in page 9.
  • Page 138 APPENDIX A MAXIMUM PIPES LENGTH & HEIGHT NOMINAL TUBES O.D LENGTH (A) HEIGHT (B) CAPACITY 2.5kW 1/4"-3/8" 3.5kW 1/4"-3/8" 1/4"-1/2" 1/4"-1/2" 7.2kW 3/8"-5/8" EXTERNAL STATIC PRESSURE NOMINAL NOMINAL CAPACITY 2.5kW 3.5kW 7.2kW SM DLF 1-A.1 GB 16-37 CONTENT...

  • Page 139: General Precautions

    APPENDIX A GENERAL PRECAUTIONS Always use the support Do not leave nuts of gas Do not untie gas tubes of a large radius cylinder tubes uncovered. Isolate after installation for banding the tubes, the connections with the using pipe bending tools supplied tube insulation Avoid placing the indoor Avoid pipes bending...

  • Page 140: Indoor Unit

    APPENDIX A INDOOR UNIT UNIT LOCATION UNIT DIMENSIONS While selecting a place for the indoor unit: a. Allow max. air flow to the desired space. b. Allow max return air flow. c. Ensure adequate drainage of condensed water. d. Ensure noise reduction near bedrooms. e.

  • Page 141: Unit Installation

    APPENDIX A UNIT INSTALLATION Insert 4 M10 or 3/8" threads rods into the ceiling. b. Introduce the rods through the slots of unit suspension brackets. c. Position the shock absorbers, add washers and screw the nuts until the unit is firmly supported.

  • Page 142: Drainage Installation

    APPENDIX A DRAINAGE INSTALLATION General For an efficient functioning of the drainage system, please take care of the following: Always balance the unit with 2° downward to the drainage side of the unit. Use 19 mm tube drainage. It is recommended to prepare a drainage point by professional plumber close to the unit.

  • Page 143: Air Filtre Location

    APPENDIX A AIR FILTER LOCATION The air filter is located in the rear side of the unit (default from factory) but can be easily relocated in the bottom of the unit if it is required. For vertical installation, it is recommended to relocate the filter in front of the unit.

  • Page 144: Outdoor Unit

    APPENDIX A OUTDOOR UNIT UNIT DIMENSIONS CLEARENS AROUND THE UNIT NOMINAL CAPACITY 2.5-5.0kW 7.2kW SEVERAL OUTDOORS INSTALATION When installing several outdoors units please take into account the air flow around the units and follow the minimum distance suggestions as shown in the diagrams bellow.

  • Page 145: Disposal Of Outdoor Unit Condensed Water

    APPENDIX A DISPOSAL OF OUTDOOR UNIT CONDENSED WATER In case of using a drain elbow, the unit should be placed on a stand at least 3 cm high. Install the hose with a downward to allow smooth flow of draining water. Use 16mm I.D.

  • Page 146: Pipe Connections To The Unit

    APPENDIX A PIPE CONECTIONS TO THE UNIT Connecting to the indoor unit 1. Align the center of the pipes and finger tight the flare nut. 2. Use the torque wrench to tighten the nut firmly. Connecting to the outdoor unit 1.

  • Page 147: Electrical Connections

    APPENDIX A ELECTRICAL CONNECTIONS ELECRICAL SPECIFICATIONS POWER SUPPLY 1PH UNITS NOMINAL VOLTAGE POWER SUPPLY TO POWER SUPPLY TO LIMITS OUTDOOR UNIT INDOOR UNIT 1PH 230/50/1 198-264V NOMINAL CIRCUIT POWER CIRCUIT POWER CAPACITY BRAKER SUPPLY BRAKER SUPPLY CABLE CABLE 2.5-3.5kW NOT APPLICABLE 3x1.5mm 5.0-6.0kW 3x2.5mm...
  • Page 148 APPENDIX A 1PH Units Power supply to indoor 1PH Units Power supply to outdoor (2.5, 3.5, 5.0, 6.0 kW units) (5.0, 6.0, 7.2 kW units) 1. Indoor unit 1. Indoor unit 2. Power supply cable 2. Power supply cable 3. Outdoor unit 3.
  • Page 149 APPENDIX A DIPSWITCH SETTING Each model has his dipswitch setting. It is very important verifying the setting according to the table below during installation for avoiding malfunctioning of the unit. Dipswitch setting 2.5kW 3.5kW 5.0kW 6.0kW 7.2kW Water pump and float switch setting In case of vertical installation, change dipswitch 7 to OFF position to cancel their operation.

  • Page 150: Display Control Unit

    APPENDIX A DISPLAY CONTROL UNIT LOCATION CRITERIA It is recommended to install the Display Control Unit close to a ceiling in a central and neutral zone at typical conditions. In addition, the aesthetic aspect should be considered. The Display Control Unit is connected to the main control board on the air conditioner (the indoor unit) by a communication cable.

  • Page 151: Check List Before Operation

    APPENDIX A Connection of several Displays in parallel units 1. Main Control Board on Indoor Unit 2. Distribution Board, Cat N. 402729 3. Communication cable Cat. N. 402730 4. Display Control Unit Cat. N. 402713 Check list before operation CHECK THE DRAINAGE EVALUATION OF THE PERFORMANCE Pour water into the drain tray-styrofoam.

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