KN DC Inverter Series Indoor Units KN 60 DCI KN 72 DCI KN 80 DCI Outdoor Units DCI 60 DCI 72 DCI 72 Z DCI 80 REFRIGERANT R410A SM KN DCI 2-E.
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. Dates of issue for original and changed pages are: Original ....... 0 ........ July 2006 Total number of pages in this publication is 122 consisting of the following: Page No. Revision No. # Page No. Revision No.
TABLE OF CONTENTS Table of Contents 1. INTRODUCTION ...................................................................................................1-1 2. PRODUCT DATA SHEET ......................................................................................2-1 3. RATING CONDITIONS ..........................................................................................3-1 4. OUTLINE DIMENSIONS .......................................................................................4-1 5.
INTRODUCTION 1. INTRODUCTION 1.1 General The new KN DCI split cassette range comprises the following RC (heat pump) models: • KN 60 DCI • KN 72 DCI • KN 80 DCI The New KN DCI units can be easily fitted to residential and commercial applications featuring esthetic design, compact dimensions, and low noise operation. 1.2 Main Features The DCI KN series benefits from the most advanced technological innovations, namely: • DC inverter technology. • R410A. • High COP. • Lego Concept.
INTRODUCTION 1.4 Outdoor Unit The DCI outdoor units can be installed as floor or wall mounted by using a wall supporting bracket. The metal sheets are protected by anti- corrosion paint work allowing long life resistance. All outdoor units are pre-charged. For further information please refer to the Product Data Sheet, Chapter 2. • • • • DCI 60 DCI 72 DCI 72Z DCI 80 Outdoor Unit Feature 1.
PRODUCT DATA SHEET 2. PRODUCT DATA SHEET 2.
PRODUCT DATA SHEET 2.
PRODUCT DATA SHEET 2.
PRODUCT DATA SHEET 2.
RATING CONDITIONS 3. RATING CONDITIONS Standard conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN 14511. Cooling: Indoor: 27oC DB 19oC WB Outdoor: 35 oC DB Heating: Indoor: 20oC DB Outdoor: 7oC DB 6oC WB 3.1 Operating Limits Indoor Cooling Heating Voltage SM KN DCI 2-E.
OUTLINE DIMENSIONS 4. OUTLINE DIMENSIONS 4.1 Indoor Unit: KN 60, 72, 80 KN 60 DCI, KN 72 DCI: B=240mm KN 80 DCI: B=310mm Remark: KN 60 DCI is the same as KN 72 DCI SM KN DCI 2-E.
OUTLINE DIMENSIONS 4.2 Outdoor Unit: DCI 60 4.3 Outdoor Unit: DCI 72, DCI 72 Z, DCI 80 4-2 CONTENT SM KN DCI 2-E.
PERFORMANCE DATA & PRESSURE CURVES 5. PERFORMANCE DATA & PRESSURE CURVES 5.1 KN60 DCI / DCI 60 5.1.1 Cooling Capacity (kW) ID COIL ENTERING AIR DB/WB TEMPERATURE [C0] OD COIL ENTERING AIR DB TEMPERATURE [C0] DATA TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI -10 - 20 (protection range) 25 30 35 40 46 22/15 24/17 27/19 29/21 32/23 5.91 4.83 1.50 5.61 4.65 1.70 5.30 4.46 1.91 5.00 4.27 2.12 4.64 4.04 2.37 80 - 110 % of nominal 80 - 105 % of nominal 25 - 50 % of nominal 6.26 6.61 6.
PERFORMANCE DATA & PRESSURE CURVES 5.1.3 Heating ID COIL ENTERING AIR DB TEMPERATURE [C0] OD COIL ENTERING AIR DB/WB TEMPERATURE [C0] DATA 15 20 25 2.96 1.26 3.90 1.42 4.61 1.55 4.97 1.61 5.21 1.65 6.93 1.71 7.28 1.74 7.64 1.78 2.53 1.35 3.48 1.51 4.19 1.64 4.54 1.70 4.78 1.74 6.50 1.80 6.86 1.83 7.22 1.87 85 - 105 % of nominal 2.11 1.44 3.05 1.60 3.76 1.73 4.12 1.79 4.35 1.83 6.07 1.89 6.43 1.92 6.79 1.
PERFORMANCE DATA & PRESSURE CURVES Pressure Curves (Cooling – Test Mode) 5.1.5 Suction Pressure [kPa] Suction Pressure VS.Outdoor Temp'. 1200 Indoor DB/WB Temp. 1100 22/15 1000 24/17 900 27/19 29/21 800 32/23 700 10 15 20 25 30 35 40 45 Outdoor DB Temperature[ºC] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp'. 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500 Indoor DB/WB Temp.
PERFORMANCE DATA & PRESSURE CURVES 5.1.6 Pressure Curves (Heating – Test Mode) Suction Pressure [kPa] Suction Pressure VS.Outdoor Temp'. 1200 Indoor DB Temp'. 1100 1000 15 900 800 20 700 25 600 500 400 300 -15 -10 -5 0 5 10 15 Outdoor WB Temperature[ºC] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp'. 3500 Indoor DB Temp'. 3250 15 3750 3000 20 2750 2500 25 2250 2000 1750 1500 -15 -10 -5 0 5 10 15 Outdoor WB Temperature[ºC] 5-4 CONTENT SM KN DCI 2-E.
PERFORMANCE DATA & PRESSURE CURVES 5.1.7 Capacity Correction Factor Due to Tubing Length Cooling Capacity Ratio 1.05 1.00 0.95 0.90 0.85 4 6 8 10 12 14 16 18 20 22 24 26 28 30 20 22 24 26 28 30 Tubing Length(m) Heating Capacity ratio 1.05 1.00 0.95 0.90 0.85 4 6 8 10 12 14 16 18 Tubing Length(m) SM KN DCI 2-E.
PERFORMANCE DATA & PRESSURE CURVES 5.2 KN72 DCI / DCI 72, KN72 DCI / DCI 72Z 5.2.1 Cooling Capacity (kW) ID COIL ENTERING AIR DB/WB TEMPERATURE [C0] OD COIL ENTERING AIR DB TEMPERATURE [C0] DATA TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI -10 - 20 (protection range) 25 30 35 40 46 22/15 24/17 27/19 29/21 32/23 7.09 6.09 1.81 6.73 5.86 2.06 6.36 5.62 2.31 6.00 5.38 2.56 5.56 5.10 2.86 80 - 110 % of nominal 80 - 105 % of nominal 25 - 50 % of nominal 7.51 7.93 8.34 6.19 6.28 6.37 1.
PERFORMANCE DATA & PRESSURE CURVES 5.2.3 Heating ID COIL ENTERING AIR DB TEMPERATURE [C0] OD COIL ENTERING AIR DB/WB TEMPERATURE [C0] DATA 15 20 25 3.64 1.55 4.81 1.75 5.68 1.91 6.12 1.98 6.41 2.03 8.52 2.11 8.97 2.15 9.41 2.19 3.12 1.66 4.28 1.87 5.16 2.02 5.59 2.09 5.88 2.14 8.00 2.22 8.44 2.26 8.88 2.30 85 - 105 % of nominal 2.59 1.77 3.76 1.98 4.63 2.13 5.07 2.20 5.36 2.26 7.48 2.33 7.92 2.37 8.36 2.
PERFORMANCE DATA & PRESSURE CURVES 5.2.5 Pressure Curves (Cooling – Test Mode) Suction Pressure VS.Outdoor Temp'. Suction Pressure [kPa] 1200 Indoor DB/WB Temp. 1100 22/15 1000 24/17 27/19 900 29/21 800 32/23 700 10 15 20 25 30 35 40 45 Outdoor DB Temperature[ºC] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp'. 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500 Indoor DB/WB Temp.
PERFORMANCE DATA & PRESSURE CURVES Pressure Curves (Heating – Test Mode) 5.2.6 Suction Pressure [kPa] Suction Pressure VS.Outdoor Temp'. 1300 1200 1100 1000 900 800 700 600 500 400 300 Indoor DB Temp'. 15 20 25 -15 -10 -5 0 5 10 15 Outdoor WB Temperature[ºC] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp'. 3750 Indoor DB Temp'. 3500 3250 15 3000 2750 20 2500 25 2250 2000 1750 1500 -15 -10 -5 0 5 10 15 Outdoor WB Temperature[ºC] SM KN DCI 2-E.
PERFORMANCE DATA & PRESSURE CURVES 5.2.7 Capacity Correction Factor Due to Tubing Length Cooling Capacity Ratio 1.05 1.00 0.95 0.90 0.85 0.80 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Tubing Length(m) Heating Capacity ratio 1.05 1.00 0.95 0.90 0.85 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Tubing Length(m) 5-10 CONTENT SM KN DCI 2-E.
PERFORMANCE DATA & PRESSURE CURVES 5.3 KN80 DCI / DCI 80 5.3.1 Cooling Capacity (kW) ID COIL ENTERING AIR DB/WB TEMPERATURE [C0] OD COIL ENTERING AIR DB TEMPERATURE [C0] DATA TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI -10 - 20 (protection range) 25 30 35 40 46 22/15 24/17 27/19 29/21 32/23 7.88 6.41 2.00 7.48 6.16 2.28 7.07 5.91 2.56 6.67 5.66 2.84 6.18 5.36 3.17 80 - 110 % of nominal 80 - 105 % of nominal 25 - 50 % of nominal 8.34 8.81 9.27 6.51 6.60 6.70 2.05 2.09 2.14 7.94 8.
PERFORMANCE DATA & PRESSURE CURVES 5.3.3 Heating ID COIL ENTERING AIR DB TEMPERATURE [C0] OD COIL ENTERING AIR DB/WB TEMPERATURE [C0] DATA 15 4.10 1.82 5.41 2.06 6.39 2.23 6.88 2.32 7.21 2.38 9.59 2.47 10.09 2.52 10.58 2.57 15-24 TC PI TC PI TC PI TC PI TC PI TC PI TC PI TC PI TC (Protection Range) PI -15/-16 -10/-12 -7/-8 -1/-2 2/1 7/6 10/9 15/12 20 25 3.51 1.95 4.82 2.19 5.80 2.36 6.29 2.45 6.62 2.51 9.00 2.60 9.50 2.65 9.99 2.70 85 - 105 % of nominal 2.92 2.08 4.23 2.32 5.21 2.49 5.70 2.58 6.
PERFORMANCE DATA & PRESSURE CURVES 5.3.5 Pressure Curves (Cooling – Test Mode) Suction Pressure VS.Outdoor Temp'. Suction Pressure [kPa] 1200 Indoor DB/WB Temp. 1100 22/15 1000 24/17 27/19 900 29/21 800 32/23 700 10 15 20 25 30 35 40 45 Outdoor DB Temperature[ºC] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp'. 4250 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500 Indoor DB/WB Temp.
PERFORMANCE DATA & PRESSURE CURVES Pressure Curves (Heating – Test Mode) 5.3.6 Suction Pressure VS.Outdoor Temp'. Suction Pressure [kPa] 1200 Indoor DB Temp'. 1100 1000 900 15 800 20 700 25 600 500 400 300 -15 -10 -5 0 5 10 15 Outdoor WB Temperature[ºC] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp'. 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500 Indoor DB Temp'. 15 20 25 -15 -10 -5 0 5 10 15 Outdoor WB Temperature[ºC] 5-14 CONTENT SM KN DCI 2-E.
PERFORMANCE DATA & PRESSURE CURVES 5.3.7 Capacity Correction Factor Due to Tubing Length Cooling Capacity ratio 1.05 1.00 0.95 0.90 0.85 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Tubing length(m) Heating Capacity ratio 1.05 1.00 0.95 0.90 0.85 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Tubing Length(m) SM KN DCI 2-E.
SOUND LEVEL CHARACTERISTICS 6 SOUND LEVEL CHARACTERISTICS 6.1 Sound Pressure Level Unit 1.4m Mic. Figure 1 6.2 Soud Pressure Level Spectrum (Measured as Figure 1) KN 60 KN 72 KN 80 FAN SPEED LINE HI ME LO SM KN DCI 2-E.
SOUND LEVEL CHARACTERISTICS 6.3 Outdoor units Unit 1m Mic. Ground Figure 2 6.4 6-2 Sound Pressure Level Spectrum (Measured as Figure 2) DCI 60 Cooling DCI 60 Heating DCI 72Z Cooling DCI 72Z Heating CONTENT SM KN DCI 2-E.
SOUND LEVEL CHARACTERISTICS DCI 72 / 80 Cooling SM KN DCI 2-E.
ELECTRICAL DATA 7. ELECTRICAL DATA 7.1 Single Phase Units Model KN 60 DCI KN 72 DCI KN 80 DCI Power Supply 1PH, 220-240VAC, 50HZ Connected to Indoor Starting Current (a) 15A Circuit Breaker 20A Power Supply Wiring no х cross section 3 X 2.5 mm2 Interconnecting cable no х cross section 4 X 2.5 mm2 (a) Starting current is the current when starting the compressor. NOTE: Power wiring cord should comply with local lows and electrical regulations requirements. SM KN DCI 2-E.
WIRING DIAGRAMS 8. WIRING DIAGRAMS 8.1 Indoor Unit: KN 60/72/80 DCI 8.
WIRING DIAGRAMS Outdoor Unit: DCI 72 Z CHOKE COIL REVERSE BASE HEATER U V W P13 P3 P9 P11 VALVE BLUE OFAN (OPTIONAL) 1 2 3 4 5 6 1 2 P4 P14 1 2 P1 1 2 1 2 1 2 1 2 1 2 P19 P20 P2 P8 P5 1 P6 ODU CONTROLLER PCBA P10 L N COM N-COM P7 6 5 4 3 2 1 JP9 1 2 3 4 5 6 P12 EARTH FERRITE CORE Y/G EEV AC MAINS EMI FILTER PCBA EARTH EARTH BLACK RED BLUE BROWN 8-2 OCT CTT OAT OMT HST NCOM COM N-F L-F COM N L L FUSE N RED BROWN BLUE RED BROWN BLUE L N C L N BLK BRN RED COMP WHITE 8.
WIRING DIAGRAMS 8.4 Outdoor Unit: DCI 72/80 SM KN DCI 2-E.
REFRIGERATION DIAGRAMS 9. REFRIGERATION DIAGRAMS 9.1 Heat Pump Models 9.1.1 KN /60/72/80 Cooling mode EEV EEV Heating mode EEV EEV SM KN DCI 2-E.
TUBING CONNECTIONS 10. TUBING CONNECTIONS TUBE (Inch) ¼” ⅜” ½” ⅝” ¾” 15-18 13-20 11-13 40-45 13-20 11-13 60-65 18-25 11-13 70-75 18-25 11-13 80-85 40-50 11-13 TORQUE (Nm) Flare Nuts Valve Cap Service Port Cap 1. 2. 3. 4. 5. 6. 7. 8.
TROUBLESHOOTING 11. TROUBLESHOOTING 11.1 Troubleshooting for DCI50/60/72Z 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!!! 11.1.
TROUBLESHOOTING No Symptom 9 Unit works in wrong mode (cool instead of heat or heat instead of cool) Electronics or power connection to RV Check RV power connections, if OK, check RV operation with direct 230VAC power supply, if OK, replace outdoor controller. 10 All components are operating properly but no cooling or no heating Refrigerant leak Check refrigeration system. 11 Compressor is over heated and unit does not generate capacity EEV problem Check EEV.
TROUBLESHOOTING 11.1.3 Judgment by Indoor/Outdoor Unit Diagnostics Enter diagnostics mode - press for five seconds Mode button in any operation mode. Acknowledgment is by 3 short beeps and lights of COOL and HEAT LED’s. Then, every short pressing of Mode button will scroll between Indoor and Outdoor unit diagnostic modes by the acknowledgment of 3 short beeps and lighting of COOL and HEAT LED’s. During the Outdoor unit diagnostics all four Indoor LED’s (STBY, Operate, Filter and Timer) are blinking.
TROUBLESHOOTING 11.1.4.1 No. Indoor Unit Diagnostics and Corrective Actions Fault Probable Cause Corrective Action 1 Sensor failures of all types Check sensor connections or replace sensor 2 Communication mismatch Indoor and Outdoor controllers are with different versions Replace Indoor controller 3 No Communication Communication or grounding wiring is not good.
TROUBLESHOOTING No. Fault Probable Cause Check the voltage between indoor fan terminals on the main P.C.B. 14 The outdoor fan does not function correctly. There is voltage between outdoor fan terminals on the outdoor unit. There is no voltage between outdoor fan terminals on the outdoor unit. Corrective Action - If there is no voltage replace main P.C.B - Replace capacitor or motor. - Check and repair electrical wiring between indoor and outdoor units. -If no voltage replace main P.C.B.
TROUBLESHOOTING No. 20 21 Fault No cooling or heating takes place, indoor and outdoor fans working. No air supply at indoor unit, compressor operates. Probable Cause Corrective Action - Overload safety device on compressor is cut out (low voltage or high temperature) - Check for proper voltage, switch off power and try again after one hour. - Compressor run capacitor faulty. - Replace compressor capacitor. - Compressor windings are shorted. - Replace compressor.
TROUBLESHOOTING 11.1.
TROUBLESHOOTING 11.1.6 Judgment by MegaTool MegaTool is a special tool to monitor the system states. Using MegaTool requires: A computer with RS232C port. A connection wire for MegaTool. A special MegaTool software. Use MegaTool according to following procedure: Setup MegaTool software: copy the software to the computer. Connect RS232C port in computer with MegaTool port in Indoor/Outdoor unit controller by the connection wire.
TROUBLESHOOTING 11.1.8 11.1.8.1 Precaution, Advise and Notice Items High voltage in Outdoor unit controller. Whole controller, including the wires that are connected to the Outdoor unit controller may have the potential hazard voltage when power is on. Touching the Outdoor unit controller may cause an electrical shock. Advise: Don’t touch the naked lead wire and don’t insert finger, conductor or anything else into the controller when power is on. 11.1.
TROUBLESHOOTING 11.2 Troubleshooting for DCI72/80 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!!! 11.2.
TROUBLESHOOTING No 7 8 Symptom Outdoor unit display board and leds are off Compressor operates but no capacity Probable Cause No power supply Check the connections and the wiring on the main terminal - Repair if needed.
TROUBLESHOOTING No Symptom Probable Cause 21 Other home appliances operation is faulty such as noise appears EMC interference by in the television picture, or the the A/C unit picture is distorted or static occurs in the radio sound 22 All others 11.2.
TROUBLESHOOTING No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Problem OCT bad CTT bad HST bad OAT bad OMT bad RGT bad OFAN/Compressor Feedback Loss OFAN- IPM fault OFAN Lock OFAN- Vospd exceeded Compressor- IPM Fault Compressor Lock Compressor- Vospd exceeded Compressor- Foldback DC under voltage DC over voltage AC under voltage No communication A reserved reserved reserved Compressor- Ilegal Speed System Configuration Changed System Configuration Problem Heat sink O
TROUBLESHOOTING 11.2.3.2 Outdoor fault corrective actions No Fault Name 1 OCT bad 2 CTT bad 3 HST bad 4 OAT bad 5 TSUC bad 6 RGT bad 7 OFAN/Compressor Feedback Loss Probable Cause Corrective Action Thermistor not connected or damaged Check Thermistor OFAN halls or wires bad.
TROUBLESHOOTING No Fault Name Probable Cause Corrective Action 18 No communication A No signals in line A Check communication 19 Compressor- Ilegal Speed Exceeds speed low limit See # 13 20 System Configuration Changed Communication lines changed from last operation No problem just an announcement 21 System Configuration Problem Miss-match between the IDUs connected to port A,B,C or D, or the total capacity code of IDUs is higher than the ODU maximum capacity code Change configuration if ne
TROUBLESHOOTING 11.2.4 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. Entering diagnostics in STBY mode allows only viewing of status (fault-display). In diagnostic mode, system problems / information will be indicated by blinking of Heat & Cool LED’s. The coding method will be as follows: Heat led will blink 5 times in 5 seconds, and then will be shut off for the next 5 seconds.
TROUBLESHOOTING 11.2.4.1 No.
TROUBLESHOOTING 11.2.5.4 Checking the Outdoor Fan Motor Check FAN-Power and FAN-Halls connections - Repair if needed. Rotate the fan slowly by hand. If the fan does not rotate easily, check whether something is obstructing the fan, or if the fan itself is coming into contact with the outer case, preventing it from rotating. Correct if necessary - otherwise, the fan motor bearings have seized. Replace the motor.
TROUBLESHOOTING 11.2.5.10 Checking for electromagnetic interferance (EMC problems) EMC troubles to the A/C unit Locations most susceptible to noise : 1. Locations near broadcast stations where there are strong electromagnetic waves. 2. Locations near amateur radio (short wave) stations. 3. Locations near electronic sewing machines and arc-welding machines. Trouble : Either of the following trouble may occur: 1. The unit may stop suddenly during operation. 2.
TROUBLESHOOTING 11.2.6.3 Advise: Open the Outdoor unit controller cover only after one minute from power off. Measure the electrolytic capacitors voltage before farther checking controller. Additional advises When disassemble the controller or the front panel, turn off the power supply. When connecting or disconnecting the connectors on the PCB, hold the whole housing, don’t pull the wire, there are sharp fringes and sting on shell. Use gloves when disassemble the A/C units.
CONTROL SYSTEM 12. 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. 12.1.1 System Operation Concept The control function is divided between indoor and outdoor unit controllers.
CONTROL SYSTEM Target frequency limits as a function of outdoor air temperature (OAT): OAT Range Cooling Mode limits OAT < 6 Heating Mode limits No limit 6 ≤ OAT < 15 MaxFreqAsOAT1H MaxFreqAsOATC 15 ≤ OAT < 28 28≤ OAT MaxFreqAsOAT2H No limit 12.1.3.
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). Step 2 The compressor speed cannot go above Step2RPS once after each compressor start up for 3 continuous minutes (this rule comes to prevent oil exit from the compressor after its start up).
CONTROL SYSTEM OFAN Speed Compressor Target Frequency Routin A Routin B Routin C Routin D Freq=0 OFF OFF OFF OFF 10 ≤ Freq < OFLowFreq Low Low VL Low OFLowFreq ≤ Freq< OFMedFreq Medium Low VL Low OFMedFreq≤ Freq High Low Low 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.
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).
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. 12.4 Heat Mode NLOAD is calculated according to the difference between actual room temperature and user set point temperature by PI control.
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. 12.7 Protections There are 5 protection codes. Normal (Norm) – unit operate normally. Stop Rise (SR) – compressor frequency can not be raised but does not have to be decreased.
CONTROL SYSTEM 12.7.2.2 Indoor Coil Overheating Protection For 72/80 ICT Trend ICT <-2 -2 -1,0,1 2 >2 ICT >62 SC SC SC SC SC 60 ≤ ICT < 62 D1 D1 D2 D2 D2 58≤ ICT <60 SR SR D1 D2 D2 56≤ ICT < 58 SR SR SR D1 D2 54≤ ICT < 56 Norm Norm SR SR D1 52≤ ICT ≤ 54 Norm Norm Norm SR SR ICT <52 12.7.3 Norm Compressor Overheating Protection 12.7.3.
CONTROL SYSTEM 12.7.3.2 Compressor Overheating Protection for DCI72/80 CTT Trend CTT Fast Decreasing Decreasing No Change Increasing Fast Increasing CTT >105 100≤ CTT < 105 95≤CTT <100 SC SC SC SC SC D1 D1 D2 D2 D2 SR SR D1 D2 D2 93≤CTT < 100 85≤CTT < 95 SR SR SR D1 D1 90≤CTT ≤ 93 80≤CTT ≤ 85 Norm Norm Norm SR SR CTT <90 CTT <80 Cool Heat CTT >105 100≤ CTT < 105 98≤CTT <100 12.7.
CONTROL SYSTEM 12.7.5.2 Heat Sink Overheating Protection For DCI72/80 Delta HST HST <-2 -2 -1,0,1 2 >2 HST≥ 81 SC SC SC SC SC 79 ≤ HST < 81 D1 D1 D2 D2 D2 75 ≤ HST < 79 SR SR D1 D2 D2 73≤ HST< 75 SR SR SR D1 D1 71 ≤ HST ≤ 73 Norm Norm Norm SR SR HST < 71 12.7.
CONTROL SYSTEM Deicing Operation Procedure ► OCT 12 0 T h re s h o ld COMP ON T1 T2 DT m a x. 1 2 m in u te s D e ic e F re q C h R V RV HEAT COOL O FAN T1 T3 T3 ON OFF EEV E E V D e ic e rO p e n Any T1=60 secondes;T2=36 secondes;T3=6 secondes 12.7.7.2 Outdoor coil Deicing Protection For DCI72/80 Entering Deicing Conditions Deicing operation will start when either one of the following conditions exist: Case 1: OCT < OAT – 8 AND TLD > DI Case 2: OCT < OAT – 12 AND TLD > 30 minutes.
CONTROL SYSTEM Deicing Operation Procedure ► OCT 12 0 Threshold COMP ON T1 T2 T1 max. 12 minutes DT HEAT RV T3 COOL OFAN T3 ON OFF EEVDeicerOpen EEV Any T1=50 secondes;T2=36 secondes;T3=6 secondes 12.7.
CONTROL SYSTEM Overflow when unit is ON Overflow Water Level Overflow when unit is OFF Normal ON OPER LED OFF BLINK ANY NLOAD NLOAD is forced to 0 0 ON PUMP OFF 8 min 12.8 8 min 8 min Indoor Unit Dry Contact Indoor unit Dry contact has two alternative functions that are selected by J9. Function Contact=open Contact=short J9=open Presence Detector Connection No limit Force to STBY J9=short Power Shedding Function No limit Limit NLOAD 12.
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): STAND BY INDICATOR 1. Lights up when the Air Conditioner is connected to power and ready to receive the R/C commands OPERATION INDICATOR 1. Lights up during operation. 2. Blinks for 300 msec.
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) Or 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 Mode = Heat, Set point = 30 12.11.
CONTROL SYSTEM Model dependent parameters - DNG Unit A (DNG50) B (DNG60) C (DNG72) D (DNG80) 3 62 74 22 28 30 32 40 50 63 120 127 127 20 127 127 127 127 127 127 127 27 62 74 3 77 80 22 28 30 32 40 50 63 120 127 127 20 127 127 127 127 127 127 127 27 77 80 4 57 55 22 28 30 32 40 63 85 115 127 127 20 127 127 127 127 127 127 127 27 57 55 4 60 63 22 28 30 32 40 78 100 127 127 127 20 127 127 127 127 127 127 127 27 60 63 Cap .
CONTROL SYSTEM Model dependent parameters - PXD A (PXD50) B (PXD60) C (PXD72) D (PXD80) Cap .
CONTROL SYSTEM 12.12.
CONTROL SYSTEM Model dependent parameters for DCI72Z No. Name Single DCI-72Z 1 MinFreqC 15 2 MaxFreqC 70 3 MinFreqH 15 4 MaxFreqH 90 7 Step1Freq 35 8 Step2Freq 55 9 Step3Freq 90 10 OFMinRPM 8 11 OFMaxRPM 90 12 NightRPM 65 13 OFNNoiseMaxRPM 78 14 CTTOH1 90 15 CTTOH2 95 16 CTTOH3 100 17 CTTOH4 105 18 CCROC1 12.5 19 CCROC2 13.3 20 CCROC3 14.1 21 CCROC4 14.
CONTROL SYSTEM Model dependent parameters for DCI72/80 Compressor Parameters Value MinOFFTime 3 MinOnTime 3 MaxCTT1 90 MaxCTT2 90 MinSpeedAsCTT1 26 MinSpeedAsCTT2 26 MaxSpeedC 75 MaxSpeedH 95 Step1RPS 40 Step2RPS 60 Step3RPS 75 NormAcc (sec/RPS) 1 NormDec (sec/RPS) 1 Down1(Sec/RPS) 12 Down2 (Sec/RPS) 7 DeiceAcc (Sec/RPS) 0.2 DeiceDec (Sec/RPS) 0.
EXPLODED VIEWS AND SPARE PARTS LISTS 13. EXPLODED VIEWS AND SPARE PARTS LISTS 13.1 Indoor Unit: KN 60/72/80 1 2 3 4 5 6 7 8 10 9 11 12 13 14 15 16 17 18 19 21 20 22 25 23 26 24 27 32 28 33 29 31 34 30 35 SM KN DCI 2-E.
EXPLODED VIEWS AND SPARE PARTS LISTS 13.2 No. Indoor Unit: KN 60 DCI Part No. Item Description Qty 1 455000103 Double patch Capacitor for fan motor 3.5uF (CBB61S) 1 2 467300035R (DCI KN) Controller/Indoor Units EHK911A522-00 1 3 4523162 TRANSFORMER ASSY.
EXPLODED VIEWS AND SPARE PARTS LISTS 13.3 No. Indoor Unit: KN 72 DCI Part No. Item Description Double patch Capacitor for fan motor 3.5uF (CBB61S) Qty 1 455000103 2 467300035R DCI KN) Controller/Indoor Units EHK911A522-00 1 3 4523162 TRANSFORMER ASSY.
EXPLODED VIEWS AND SPARE PARTS LISTS 13.4 No. Intdoor Unit: KN 80 DCI Part No. Item Description Qty 1 455000103 Double patch Capacitor for fan motor 3.5uF (CBB61S) 1 2 467300035R (DCI KN) Controller/Indoor Units EHK911A522-00 1 3 4523162 TRANSFORMER ASSY.
EXPLODED VIEWS AND SPARE PARTS LISTS 13.5 Outdoor Unit: DCI 60 SM KN DCI 2-E.
EXPLODED VIEWS AND SPARE PARTS LISTS 13.6 Outdoor Unit: DCI 60 No. Part No.
EXPLODED VIEWS AND SPARE PARTS LISTS 13.7 Outdoor Unit: DCI 72/80 SM KN DCI 2-E.
EXPLODED VIEWS AND SPARE PARTS LISTS 13.8 Outdoor Unit: DCI 72/80 No. Part No.
EXPLODED VIEWS AND SPARE PARTS LISTS 13.9 Outdoor Unit: DCI 72 Z SM KN DCI 2-E.
EXPLODED VIEWS AND SPARE PARTS LISTS 13.10 Outdoor Unit: DCI 72 Z No. 13-10 Item Description Quan. 1 465100000 Grill/ DCI Trio 2 4523652 PAINTED LEFT CABINET ASSY 1 3 4523758 Nut M8 left 1 4 452960400 Outdoor Fan 1 5 461600023 4-Way Valve Assy.
APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► INSTALLATION MANUAL KN 60/72/80 DCI ► OPERATION MANUAL KN 60/72/80 DCI SM KN DCI 2-E.
