DUO 38 DCI / DELTA Indoor Units Outdoor Units DELTA 22 DELTA 25 DELTA 35 DUO 38 DCI REFRIGERANT R410A SM DUO38 1-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 ........ January 2006 Total number of pages in this publication is 56 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. 1.1 INTRODUCTION General The new DUO 3.8 DCI Outdoor Unit is a high efficiency multi split inverter unit, supporting Indoor Units capacity range of - 2.2, 2.5 and 3.5 Kw. 1.2 Main Features • • • • • • • • • • • 1.3 DC Inverter R410A High COP (A class energy rating) Pre-Charged Base heater connection. Cooling operation at outdoor temperature down to -100C. Heating operation at outdoor temperature down to -150C. 10 LED’s, shows both indoor and outdoor diagnostics.
PRODUCT DATA SHEET 2. PRODUCT DATA SHEET 2.1 Outdoor Unit DUO 38 DCI / Delta Specifications. Model Indoor Unit DELTA 22 25 35 Model Outdoor Unit DCI DUO Delta 38 R410A Installation Method of Pipe Flared Characteristics Capacity (4)) Power input (4) EER (Cooling) or COP(Heating) (4) Units Cooling Heating Btu/hr 13300(4090-18750) 15350(4090-21140) kW 3.90(1.50-5.50) 4.50(1.20-6.20) kW 1.1(0.45-1.80) 1.24(0.45-1.80) W/W 3.55 3.
PRODUCT DATA SHEET 2.2 Indoor Units Data 2.2.1 DELTA 22 DCI Specifications Model Indoor Unit / Type DELTA 22 DCI / Wall Mounted Installation Method Power Supply Fan Type & Quantity Airflow(2) Cooling / Heating INDOOR Sound Power Level(3) Cooling / Heating Sound Pressure Level (4) Cooling / Heating Condensate Drain Tube I.D. Dimensions Weight Package Dimensions Stacking Height Heating Elements Moisture Removal 2.2.
PRODUCT DATA SHEET 2.2.3 DELTA 35 DCI Specifications Model Indoor Unit / Type DELTA 35 DCI / Wall Mounted Installation Method FLARE Power Supply V/Ph/Hz 220-240 / 1/ 50 INDOOR Fan Type & Quantity Crossflow *1 Airflow(2) Cooling / Heating Sound Power Level(3) Cooling / Heating Sound Pressure Level (4) Cooling / Heating H/M/L m3/hr L-H dB (A) 56/46/42 L-H dB (A) 39/33/29 Dimensions Weight W/H/D mm kg 840 250 8.0 185 Package Dimensions W/H/D mm 930 320 265 Condensate Drain Tube I.
RATING CONDITIONS 3. RATING CONDITIONS Standard conditions in accordance with ISO 5151, 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 DUO38 1-E.
OUTLINE DIMENSIONS 4. OUTLINE DIMENSIONS 4.1 Indoor Unit: DELTA 22, DELTA 25 DCI MOUNTING TEMPLATE TO BE USED FOR LOCATION OF INDOOR UNIT ON THE WALL 306 141 58 INDOOR UNIT OUTLINE 40 52 244 160 46 Min50 CEILING 41 80 380 670 118 TUBING WALL OPENING (FOR REAR ROUTING) TUBING WALL OPENING (FOR REAR LEFT ROUTING) AIR INTAKE 680 185 250 AIR INTAKE AIR OUTLET 4.
OUTLINE DIMENSIONS 4.3 Outdoor Unit: DUO 38 DCI / Delta 4-2 CONTENT SM DUO38 1-E.
PERFORMANCE DATA 5. PERFORMANCE DATA 5.1 Delta 22+22 DCI 5.1.1 Cooling Capacity (kW) - Run Mode (Unit A or B) 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [0C] OD COIL ENTERING AIR DB TEMPERATURE [0C] DATA 22/15 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 1.98 1.53 0.39 1.80 1.46 0.44 1.62 1.38 0.48 24/17 27/19 29/21 80 - 110 % of nominal 80 - 105 % of nominal 25 - 50 % of nominal 2.10 2.22 2.33 1.57 1.
PERFORMANCE DATA 5.1.3 Heating Capacity (kW) - Run Mode(Unit A or B) 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [C0] OD COIL ENTERING AIR DB/WB TEMPERATURE [C0] -15/-16 -10/-12 -7/-8 -1/-2 2/1 7/6 10/9 15/12 DATA 15 20 25 TC 1.15 1.07 1.00 PI 0.38 0.44 0.49 TC 1.37 1.30 1.23 PI 0.44 0.50 0.55 TC 1.54 1.47 0.55 PI 0.49 0.54 0.60 TC 1.63 1.56 1.49 PI 0.51 0.56 0.62 TC 1.68 1.61 1.54 PI 0.52 0.58 0.63 TC 2.22 2.15 2.08 PI 0.54 0.
PERFORMANCE DATA 5.2 Delta 25+25 DCI 5.2.1 Cooling Capacity (kW) - Run Mode (Unit A or B) 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [0C] OD COIL ENTERING AIRDB TEMPERATURE [oC] 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 (protection range 46 (protection range 24/17 22/15 27/19 29/21 80 - 110 % of nominal 80 - 105 % of nominal 25 - 50 % of nominal 2.21 2.34 2.46 1.68 1.72 1.76 0.44 0.45 0.46 2.02 2.14 2.
PERFORMANCE DATA 5.2.3 Heating Capacity (kW) - Run Mode(Unit A or B) 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [0C] OD COIL ENTERING AIR DB/WB TEMPERATURE [0C] -15/-16 -10/-12 -7/-8 -1/-2 2/1 7/6 10/9 15/12 15-24 (Protection Range) DATA 15 20 25 TC PI TC PI TC PI TC PI TC PI TC PI TC PI TC PI TC PI 1.20 0.41 1.44 0.47 1.61 0.52 1.70 0.54 1.76 0.56 2.32 0.58 2.42 0.61 2.51 0.64 1.12 0.47 1.36 0.53 1.54 0.58 1.63 0.60 1.69 0.62 1.05 0.53 1.29 0.59 1.47 0.64 1.55 0.66 1.
PERFORMANCE DATA 5.3 Delta 25+35 5.3.1 Cooling Capacity (kW) - Run Mode(Unit A or B) 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [OC] OD COIL ENTERING AIR DB TEMPERATURE [OC] 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 24/17 22/15 27/19 29/21 80 - 110 % of nominal 80 - 105 % of nominal 25 - 50 % of nominal 3.46 3.65 3.84 2.27 2.33 2.38 0.68 0.70 0.71 3.16 3.35 3.54 2.16 2.21 2.27 0.77 0.76 0.79 2.86 3.
PERFORMANCE DATA 5.3.3 Heating Capacity (kW) - Run Mode(Unit A or B) 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [0C] OD COIL ENTERING AIR DB/WB TEMPERATURE [0C] -15/-16 -10/-12 -7/-8 -1/-2 2/1 7/6 10/9 15/12 15-24 (Protection Range) DATA 15 20 25 TC PI TC PI TC PI TC PI TC PI TC PI TC PI TC PI TC PI 1.73 0.59 2.07 0.68 2.33 0.75 2.46 0.78 2.55 0.80 3.36 0.84 3.49 0.87 3.62 0.91 1.62 0.67 1.97 0.76 2.22 0.83 2.35 0.86 2.44 0.89 1.52 0.76 1.86 0.85 2.12 0.91 2.25 0.95 2.
PERFORMANCE DATA 5.4 Capacity Correction Factor Due to Tubing Length (OneWay) 5.4.1 Delta 22 / 25 / 35 DCI 5.4.2 Cooling Capacity Ratio VS.Tubing Length - Cooling Capacity Ratio 1.02 1.00 0.98 0.96 0.94 0.92 0.90 0.88 4 5.4.3 6 8 10 12 14 16 18 20 22 Tubing Length [m] 24 26 28 30 26 28 30 Heating Capacity Ratio VS. Tubing Length - Heating Capacity Ratio 1.02 1.00 0.98 0.96 0.94 0.92 0.90 0.88 4 SM DUO38 1-E.
PRESSURE CURVES 6. PRESSURE CURVES 6.1 Model: Delta 22+22, Delta 25+25 DUO 38 DCI 6.1.1 Cooling – Test Mode Suction Pressure VS.Outdoor Temp'. Suction Pressure [kPa] 1400 1300 Indoor DB/WB Temp'. 1200 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'. 3750 Indoor DB/WB Temp'.
PRESSURE CURVES 6.1.2 Heading – Test Mode Suction Pressure VS.Outdoor Temp'. Suction Pressure [kPa] 1100 1000 Indoor DB Temp'. 900 800 15 700 20 600 25 500 400 -15 -10 -5 0 5 10 15 Outdoor WB Temperature [ºC] Discharge Pressure VS. Outdoor Temp'. Discharge Pressure [kPa] 3250 Indoor DB Temp'. 3000 2750 2500 15 2250 20 2000 25 1750 1500 -15 -10 -5 0 5 10 15 Outdoor WB Temperature [ºC] 6-2 CONTENT SM DUO38 1-E.
PRESSURE CURVES 6.2 Model: Delta 25+35 DUO 38 DCI 6.2.1 Cooling – Test Mode Suction Pressure VS.Outdoor Temp'. Suction Pressure [kPa] 1200 1100 Indoor DB/WB Temp'. 1000 22/ 15 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 Indoor DB/WB Temp'.
PRESSURE CURVES 6.1.2 Heading – Test Mode Suction Pressure VS.Outdoor Temp'. Suction Pressure [kPa] 1100 1000 900 Indoor DB Temp'. 800 15 700 20 600 25 500 400 300 -15 -10 -5 0 5 10 15 Outdoor WB Temperature [ºC] Discharge Pressure VS. Outdoor Temp'. Discharge Pressure [kPa] 3250 3000 Indoor DB Temp'. 2750 2500 15 2250 20 2000 25 1750 1500 -15 -10 -5 0 5 10 15 Outdoor WB Temperature [ºC] 6-4 CONTENT SM DUO38 1-E.
ELECTRICAL DATA 7. ELECTRICAL DATA Power Supply 1 PH, 220-240 VAC, 50Hz Connected to Outdoor Maximum Current 13.7 A Inrush Current 35 A Starting Current 10 A Circuit breaker 16 A 3 X 2.5 mm2 Power supply wiring - No. x cross section 2 X 4 X 1.5 mm2 Interconnecting cable - No. x cross section Note: • Inrush current is the current when power is up. (charging the DC capacitors at outdoor unit controller).
SM DUO38 1-E.
ODU SM DUO38 1-E.1 GB Strainer COMP. DUO 38 DCI => Cooling Mode CONTENT Strainer 9.1.1 Brass Jointer (1/4") Heat Pump Models Liquid Valve (1/4") IDU2 9.1 Strainer Brass Jointer (1/4") REFRIGERATION DIAGRAMS EEV2 EEV1 Liquid Valve (1/4") Gas Valve (3/8") Brass Jointer (3/8") 9. ID¦3.0ױ ID¦3.0ױ ID¦3.
ODU 9-2 CONTENT ID¦3.0ױ Strainer COMP. EEV2 EEV1 Strainer Liquid Valve (1/4") Strainer Liquid Valve (1/4") Gas Valve (3/8") Brass Jointer (1/4") Brass Jointer (1/4") Brass Jointer (3/8") IDU2 9.1.2 ID¦3.0ױ ID¦3.0ױ Reverse Valve Gas Valve (3/8") Brass Jointer (3/8") IDU1 REFRIGERATION DIAGRAMS DUO 38 DCI => Heating Mode SM DUO38 1-E.
TUBING CONNECTIONS 10. TUBING CONNECTIONS TUBE (Inch) ¼” ⅜” ½” ⅝” ¾” 11-13 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.
CONTROL SYSTEM 11. CONTROL SYSTEM 11.1 General Functions and Operating Rules (for single split models) 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. 11.2 System Operation Concept The control function is divided between indoor and outdoor unit controllers.
CONTROL SYSTEM 11.3.2 Target Frequency Setting The compressor target frequency is a function of the NLOAD number sent from the indoor controller and the outdoor air temperature.
CONTROL SYSTEM 11.4 Indoor Fan Control 10 Indoor fan speeds are determined for each model. 5 speeds for cool/dry/fan modes and 5 speeds for heat mode. When user sets the indoor fan speed to a fixed speed (Low/ Medium/ High), unit will operate constantly at set speed. When Auto Fan is selected, indoor unit controller can operate in all speeds. The actual speed is set according to the cool/heat load. 11.4.
CONTROL SYSTEM 11.7 • • • • • 11.8 EEV (electronic Expansion valve) Control EEV opening is defined as EEV = EEVOL + EEVCV EEVOL is the initial EEV opening as a function of the compressor frequency, operation mode, unit model and capacity. EEVCV is a correction value for the EEV opening that is based on the compressor temperature. During the first 10 minutes of compressor operation EEVCV = 0.
CONTROL SYSTEM 11.14 Heat 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. 11.14.
CONTROL SYSTEM 11.16 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. 11.17 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 11.17.3 Compressor over Heating Protection Compressor temperature can be in one of 5 control zones (4 in protection, and 1 normal), t. CTT Stop-Compresor CTTOH4 P3 CTTOH3 P2 CTTOH2 P1 CTTOH1 Normal Control Status Compressor Temperature Increases Else Norm D1 D2 SR SR D1 P1 P2 P3 Stop Compressor 11.17.4 SC Compressor over Current Protection CCR Stop-Compresor W CCROC4 HzDown2 CCROC3 HzDown1 CCROC2 Stop-Rise CCROC1 Normal SM DUO38 1-E.
CONTROL SYSTEM 11.17.5 Heat Sink Over Heating Protection (NA for DCI 25 and 35) HST HST > 90 85 < HST ≤ 90 82 < HST ≤ 85 80 < HST ≤ 82 78 < HST ≤ 80 HST ≤ 78 Decreasing SC D1 SR SR Norm HST Trend No Change SC D2 D1 SR Norm Normal Increasing SC D2 D2 D1 SR 11.17.6 Outdoor Coil Deicing Protection 11.17.6.1 Deicing Starting 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 11.17.6.2 Deicing Protection Procedure OCT 12 0 Threshold COMP ON T1 T2 T1 max. 12 minutes DT HEAT RV COOL OFAN T3 T3 ON OFF EEVDeicerOpen EEV Any T1 = T2 = 36 seconds, T3 = 6 seconds 11.17.7 Condensate Water Over Flow Protection Each of the pins P1, P2, P3 can have two options: 1 – When it is shorted with P4 0 – When it is not shorted to P4 11.17.7.1 Levels Logic (used in floor/ceiling models) P2 0 1 1 0 SM DUO38 1-E.
CONTROL SYSTEM Water Level LEVEL4 LEVEL2&3 LEVEL1 ON Pump OFF ANY NLOAD 0 BLINK OPER LED NORMAL 11.17.7.2 1 Level Logic (used in all models except for floor/ceiling models) P2 P3 Level Don’t care 1 Normal Don’t care 0 Overflow 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 11-10 CONTENT 8 min 8 min SM DUO38 1-E.
CONTROL SYSTEM 11.18 Indoor Unit Dry Contact Indoor unit Dry contact has two alternative functions that are selected by J8. Function Contact = Open Contact = Short J8 = Open Presence Detector Connection No Limit Forced to STBY J8 = Short Power Shedding Function No Limit Limit NLOAD 11.
CONTROL SYSTEM 11.20.
CONTROL SYSTEM 11.21 Jumper Settings 11.21.1 Indoor Unit Controller 0 = Open Jumper (disconnect jumper). 1 = Close Jumper (connect jumper).
CONTROL SYSTEM Model selection Jumper – J6, J7 Model 9000 Btu/hr 12000 Btu/hr 18000 Btu/hr 24000 Btu/hr J7 0 0 1 1 J6 0 1 0 1 J8- Clock/Power Shedding Operation Clock Power Shedding J8 0 1 J9 – IFAN Cycling Disabling Display Mode (wall mounted units only) LCD LED J9 0 1 11.21.2 Outdoor Unit Controller 11.21.2.1 JP9 JUMPER LAYOUT Reserved (PIN 9) ODU3 (PIN 7) ODU2 (PIN 5) ODU1 (PIN 3) ODU0 (PIN 1) GND GND (PIN 8) GND GND (PIN 4) GND (PIN 2) 11.21.
CONTROL SYSTEM 11.22 Test Mode 11.22.1 Entering Test Mode System can enter Test mode in two ways: • Automatically when the following conditions exists for 30 minutes continuously: o Mode = Cool, Set point = 16, Room temperature = 27±1, Outdoor temperature = 35±1 Or o Mode = Heat, Set point = 30, Room temperature = 20±1, Outdoor temperature = 7±1 • Manually when entering diagnostics with the following settings: o Mode = Cool, Set point = 16 o Mode = Heat, Set point = 30 11.22.
CONTROL SYSTEM 11.23.4 EEV (electronic Expansion valve) Control EEV opening is defined as EEV = EEVOL + EEVCV • EEVOL is the initial EEV opening as a function of the compressor frequency, operation mode, unit model and capacity. • EEVCV is a correction value for the EEV opening that is based in cooling mode on the relevant indoor unit super heat and compressor temperature. • During the first 10 minutes of compressor operation EEVCV = 0. 11.23.
CONTROL SYSTEM 11.25 SW Parameters 11.25.
CONTROL SYSTEM 11.25.
TROUBLESHOOTING 12. 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 1.6 below. 1.
TROUBLESHOOTING 1.2 Checking the refrigeration system Checking system pressures and other thermodynamic measures should be done when system is in Test Mode (in Test mode, system operates in fixed settings). The performance curves given in this manual are given for unit performance in test mode when high indoor fan speed is selected. Entering test mode: Set the two indoor units to Cool/16 degrees/High indoor fan speed, or Heat/30 degrees/High indoor fan speed, and enter diagnostics.
TROUBLESHOOTING 1.3.2 Outdoor unit diagnosis by MSMP and corrective actions No. 1 Fault Sensors failures of all types 2 IPM Fault 3 Bad EEPROM 4 DC under/over Voltage 5 AC under Voltage 6 Indoor / Outdoor unit Communication mismatch 7 No Communication 8 Compressor Lock 9 Bad Communication SM DUO38 1-E.1 GB Probable Cause Electronics HW problem Electronics HW problem Indoor and Outdoor controllers are with different versions Communication or grounding wiring is not good.
TROUBLESHOOTING 1.3.
TROUBLESHOOTING 1.3.4 Indoor unit diagnosis by MSMP and corrective actions No. 1 1.4 1.5.1 3 Bad EEPROM 4 DC under/over Voltage 5 AC under Voltage 6 Indoor / Outdoor unit Communication mismatch 7 No Communication 8 Compressor Lock 9 Bad Communication Probable Cause Electronics HW problem Electronics HW problem Indoor and Outdoor controllers are with different versions Communication or grounding wiring is not good.
TROUBLESHOOTING 1.5.3 Checking the PCB. Appearance inspect: Check discoloration, nick and connection of copper foil, short-circuit and open circuit, component soldering, bulgy and distortion of electrolytic capacitor. Power circuit check: check voltage of every power level (5V, 12V, 15V) printed on back of PCB. 1.5.4 Checking the Outdoor Fan Motor.
EXPLODED VIEWS AND SPARE PARTS LISTS 13. EXPLODED VIEWS AND SPARE PARTS LISTS 13.1 Outdoor Unit: DUO 38 DCI / DELTA SM DUO38 1-E.
EXPLODED VIEWS AND SPARE PARTS LISTS 13.2 Outdoor Unit: DUO 38 DCI / DELTA No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 433218 4526340 4526476 4526475 433215 464600021 4526403 4526774 4526775 4526776 452630201 452630200 4526301 4526403 4527130 204107 4526225 4526968 4526223 4526222 4526226 4526827 452682802 452682800 19 4526344 20 4510677 21 22 23 24 4526221 4526204 433230 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 43 44 13-2 Part No.
APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► SM DUO38 1-E.
