Product data

ManualsBrandsDelta ManualsDomestic AppliancesPG-35

Delta DCI Series

Indoor Units Outdoor Units

Delta 25 DCR 25 Z

Delta 35 DCR 35 Z

REFRIGERANT

NOVEMBER – 2008

REFRIGERAN

REFRIGERANT

R410A

HEAT PUMP

SM DELTAZ 1-E.0 GB

CONTENTS

Summary of content (55 pages)

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Delta DCI Series Indoor Units Outdoor Units Delta 25 DCR 25 Z Delta 35 DCR 35 Z REFRIGERANT REFRIGERANT R410A SM DELTAZ 1-E.
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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 ........ 20 November 2008 Total number of pages in this publication is 70 consisting of the following: Page No. Revision No. # Page No. Revision No.
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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.
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INTRODUCTION 1. INTRODUCTION 1.1 General The new Delta DC Inverter split wall mounted series comprise RC (heat pump) models, as follows: ● Delta 25 ● Delta 35 The indoor Delta units are available as LED display types only, featuring esthetic design, compact dimensions, and low noise operation. 1.2 Main Features The Delta series benefits from the most advanced innovations, namely: ● DC Inverter Technology ● R410A ● Microprocessor control. ● Infrared remote control with liquid crystal display.
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INTRODUCTION 1.3 Indoor Unit The indoor unit is wall mounted, and can be easily fitted to many types of residential and commercials applications. It includes: ● Casing with air inlet and outlet grills. ● A large-diameter tangential fan. ● Bended coil with treated aluminum fins. ● Motorized flaps. ● Variable Speed motor (PG). ● Advanced electronic control box assembly. ● Interconnecting wiring terminal block. ● Mounting plate. 1.
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INTRODUCTION 1.7 Tubing Connections Flare type interconnecting tubing to be produced on site. For further details please refer to the Installation Manual, Outdoor Chapter 9. 1.8 Inbox Documentation Each unit is supplied with its own installation and operation manuals, one simly remote control manual. 1.9 Matching Table INDOOR UNITS OUTDOOR UNITS MODEL REFR” Delta 25 DCR 25Z R410A √ DCR 35Z R410A SM DELTAZ 1-E.
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PRODUCT DATA SHEET 2. PRODUCT DATA SHEET 2.
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PRODUCT DATA SHEET 2.
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RATING CONDITIONS 3. RATING CONDITIONS Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units). Cooling: Indoor: 27oC DB 19oC WB Outdoor: 35 oC DB Heating: Indoor: 20oC DB Outdoor: 7oC DB 6oC WB 3.1 Operating Limits 3.1.1 R410A Indoor Cooling Heating Outdoor Upper limit 32oC DB 23oC WB 46oC DB Lower limit 21oC DB 15oC WB 0oC DB Upper limit 27oC DB 24oC DB 18oC WB Lower limit 10oC DB -15oC DB -16oC WB Voltage 198 – 264 V SM DELTAZ 1-E.
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OUTLINE DIMENSIONS 4. OUTLINE DIMENSIONS 4.1 Indoor Unit: Delta 25 DCI 4.2 Indoor Unit: Delta 35 DCI SM DELTAZ 1-E.
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OUTLINE DIMENSIONS 4.3 Outdoor Unit: DCR 25 Z, DCR 35 Z DCI AIR INTAKE AIR OUTLET SM DELTAZ 1-E.
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PERFORMANCE DATA & PRESSURE CURVES 5. PERFORMANCE DATA 5.1 Delta 25 / DCR 25 Z R410A 5.1.1 Cooling Capacity (kW) – Run Mode 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 0 - 20 (protection range) 25 30 35 40 46 22/15 24/17 27/19 29/21 32/23 2.41 1.67 0.59 2.30 1.63 0.66 2.18 1.59 0.73 2.07 1.55 0.80 1.93 1.50 0.
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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 [oC] OD COIL ENTERING AIR DB/WB TEMPERATURE [oC] -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 1.78 0.49 1.98 0.59 2.14 0.67 2.21 0.71 2.26 0.73 2.92 0.77 3.09 0.82 3.25 0.86 1.66 0.54 1.86 0.64 2.01 0.72 2.09 0.76 2.14 0.78 2.50 0.69 2.96 0.87 3.12 0.
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PERFORMANCE DATA & PRESSURE CURVES 5.2 Delta 35 / DCR 35 Z R410A 5.2.1 Cooling Capacity (kW) – Run Mode 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 22/15 24/17 27/19 29/21 32/23 3.38 2.54 0.81 3.22 2.48 0.90 3.06 2.42 1.00 2.90 2.36 1.09 2.70 2.28 1.
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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 [oC] OD COIL ENTERING AIR DB/WB TEMPERATURE [oC] DATA 15 20 25 2.29 0.63 2.55 0.76 2.75 0.86 2.84 0.91 2.91 0.94 3.76 0.99 3.97 1.04 4.17 1.10 2.13 0.69 2.39 0.82 2.58 0.92 2.68 0.97 2.75 1.00 3.50 0.97 3.81 1.11 4.01 1.17 85 - 105 % of nominal 1.97 0.76 2.23 0.89 2.42 0.98 2.52 1.03 2.59 1.07 3.44 1.11 3.65 1.17 3.85 1.
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PERFORMANCE DATA & PRESSURE CURVES 5.3 Capacity Correction Factor Due to Tubing Length 5.3.1 Delta 25 DCI : Cooling Capacity Ratio 1.025 1.00 0.95 0.90 0.85 0.80 0.75 5.3.2 3 5 3 5 7 9 11 Tubing Length[m ] 13 15 Heating Capacity Ratio 1.025 1.00 0.95 0.90 0.85 0.80 0.75 7 9 11 Tubing Length[m ] SM DELTAZ 1-E.
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PERFORMANCE DATA & PRESSURE CURVES Delta 35 DCI : Cooling Capacity Ratio 5.3.3 1.025 1.00 0.98 0.96 0.94 0.92 0.90 0.88 0.84 0.80 5 7 9 11 Tubing Length[m ] 13 15 3 5 7 9 11 Tubing Length[m ] 13 15 Heating Capacity Ratio 5.3.4 3 1.01 1.00 0.99 0.98 0.97 0.96 0.95 0.94 0.92 0.90 SM DELTAZ 1-E.
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PERFORMANCE DATA & PRESSURE CURVES 5.4 PRESSURE CURVES 5.4.1 DELTA 25 / DCR 25 Z R410A 5.4.1.1 Cooling => Test Mode Suction Pressure VS.Outdoor Temp. 1200 Suction Pressure[kPa] 1100 1000 900 800 700 21/15 DB/WB 24/17 DB/WB 27/19 DB/WB 29/21 DB/WB 32/23 DB/WB 600 500 400 10 15 20 25 30 35 Outdoor DB Temperature 40 45 Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp.
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PERFORMANCE DATA & PRESSURE CURVES 5.4.1.2 Heating => Test Mode Suction Pressure VS. Outdoor Temp. 1000 Suction Pressure [kPa] 900 800 700 15 DB 600 20 DB 500 25 DB 400 300 200 -15 -10 -5 0 5 10 15 Outdoor WB Temperature Discharge Pressure VS. Outdoor Temp. 3350 3100 2850 2600 2350 15 DB 20 DB 25 DB 2100 1850 1600 1350 1100 -15 -10 -5 0 5 10 15 Outdoor WB Temperature SM DELTAZ 1-E.
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PERFORMANCE DATA & PRESSURE CURVES 5.4.2 DELTA 35 / DCR 35 Z R410A 5.4.2.1 Cooling => Test Mode Suction Pressure VS. Outdoor Temp. 1200 Suction Pressure [kPa] 1100 1000 900 800 21/15 DB/WB 24/17 DB/WB 27/19 DB/WB 29/21 DB/WB 32/23 DB/WB 700 600 500 400 10 15 20 25 30 35 40 45 Outdoor DB Temperature Discharge Pressure [kPa] Discharge Pressure VS. OutdoorTemp.
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PERFORMANCE DATA & PRESSURE CURVES 5.4.2.2 Heating =>Test Mode Suction Pressure VS. Outdoor Temp. Suction Pressure [kPa] 1000 900 800 700 15 DB 20 DB 25 DB 600 500 400 300 200 -15 -10 -5 0 5 10 15 Outdoor WB Temperature Discharge Pressure VS. Outdoor Temp. 4000 Discharge Pressure [kPa] 3750 3500 3250 3000 2750 2500 15 DB 20 DB 2250 2000 25 DB 1750 1500 1250 -15 -10 -5 0 5 10 15 Outdoor WB Temperature SM DELTAZ 1-E.
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SOUND LEVEL CHARACTERISTICS 6. SOUND LEVEL CHARACTERISTICS 6.1 Sound Pressure Level 6.2 Figure 1. Wall Mounted Figure 2. Floor Mounted Figure 3. Ducted Figure 4. Cassette Sound Pressure Level Spectrum (Measured as Figure 1) Delta 35 -70NC -60NC -50NC -40NC -30NC APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE -20NC MICRO BAR0.002 dB re , OCTAVE BAND SOUND PRESSURE LEVEL MICRO BAR0.
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SOUND LEVEL CHARACTERISTICS 6.3 Outdoor units Microphone Distance from Unit 6.4 Sound Pressure Level Spectrum (Measured as Figure 5) DCR 25 Z Heating -70NC -60NC -50NC -40NC -30NC APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE -20NC MICRO BAR0.002 dB re , OCTAVE BAND SOUND PRESSURE LEVEL MICRO BAR0.
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ELECTRICAL DATA 7. ELECTRICAL DATA 7.1 Single Phase Units MODEL Delta 25 Delta 35 To indoor To indoor 1PH,220-240V,50Hz 1PH,220-240V,50Hz Max Current, A 6.3 7.5 Circuit Breaker,A Power Supply Wiring No. X Cross Section, mm2 Interconnecting Cable RC Model No. X Cross Section, mm2 10 15 3x1.0 mm2 3x1.5 mm2 4x1.0 mm2 4x1.5 mm2 Power Supply NOTE Power wiring cord should comply with local lows and electrical regulations requirements SM DELTAZ 1-E.
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RED BRN BLK N L COM P17 FUSE U V W P3 P9 P11 N BLUE OFAN L H P1 2uF/450V FAN CAP SM DELTAZ 1-E.
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REFRIGERATION DIAGRAMS 9. REFRIGERATION DIAGRAMS 9.1 Heat Pump Models 9.1.1 Delta 25 / DCR 25 Z DCI SM DELTAZ 1-E.
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REFRIGERATION DIAGRAMS 9.1.2 Delta 35 / DCR 35 Z DCI SM DELTAZ 1-E.
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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.
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CONTROL SYSTEM 11. CONTROL SYSTEM 11.1 Electronic Control 11.1.1 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. 11.1.2 System Operation Concept The control function is divided between indoor and outdoor unit controllers.
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CONTROL SYSTEM 11.1.3.3 Frequency Changes Control Frequency change rate is 1 Hz/sec. 11.1.3.4 Compressor Starting Control Frequency Step 3 Step 2 Step 1 1 Minute 1 Minute Time Min 10 Minutes 11.1.3.5 Minimum On and Off Time 3 minutes. 11.1.4 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.
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CONTROL SYSTEM 11.1.6.
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CONTROL SYSTEM 11.1.8 Reversing Valve (RV) Control Reversing valve is on in heat mode. Switching of RV state is done only after compressor is off for over 3 minutes. 11.2 Fan Mode 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 difference between actual room temperature and user set point temperature. 11.
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CONTROL SYSTEM 11.6 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. 11.7 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.
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CONTROL SYSTEM 11.7.3 Compressor over Heating Protection Compressor temperature can be in one of 5 control zones (4 in protection, and 1 normal), according to the following chart. CTT Stop-Compresor CTTOH4 P3 CTTOH3 P2 CTTOH2 P1 CTTOH1 Normal Compressor Temperature Increases Else P1 Norm SR P2 D1 SR P3 D2 D1 Control Status Stop Compressor 11.7.
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CONTROL SYSTEM 11.7.5 Heat Sink Over Heating Protection A new control status will be set according to the following graph every one-minute or whenever when going up by the rows. HSTn is the current reading of HST and HSTn-1 is the last reading of HST.
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CONTROL SYSTEM 11.7.6.2 Deicing Protection 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 = DEICT1, T2 = DEICT2, T3 = DEICT3 11.7.7 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 11.7.7.1 3 Levels Logic (used in floor/ceiling models) P2 0 1 1 0 11-8 P3 0 0 1 1 Level L0 L1 L2&3 L4 SM DELTAZ 1-E.
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CONTROL SYSTEM Water Level LEVEL4 LEVEL2&3 LEVEL1 ON Pump OFF ANY NLOAD 0 BLINK OPER LED NORMAL 11.7.7.2 1 Level Logic (used in all models except for floor/ceiling models) P2 P3 Level Don’t care Don’t care 1 0 Normal 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 8 min 8 min 11-9 SM DELTAZ 1-E.
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CONTROL SYSTEM 11.8 Indoor Unit Dry Contact Indoor unit Dry contact has two alternative functions that are selected by J8. J8 = Open J8 = Short 11.
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CONTROL SYSTEM STAND BY INDICATOR OPERATION INDICATOR 1. Lights up when the Air Conditioner is connected to power and the mode is STBY. 2. Blinks for 3 seconds, when the system is switched to Heat Mode by using the Mode/Reset Switch on the unit (the operation indicator will be off during this blinking time). 1. Lights up during operation mode (except for item in STBY indicator). 2. Blinks for 300 msec., to announce that a R/C infrared signal has been received and stored. 3.
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CONTROL SYSTEM 11.10.2 Outdoor Unit Controller Indicators Unit has three LED’s. SB LED, STATUS LED, FAULT LED. SB LED is ON when power is ON (230 VAC), STATUS LED is ON when COMP is ON, and Blinks according to diagnostics mode definitions when either fault or protection occurs. FAULT LED Blinks according to diagnostics mode definitions when either fault or protection occurs. 11.11 Jumper Settings 11.11.1 Indoor Unit Controller 11.11.1.1 Hardware Jumpers 0 = Open Jumper (disconnect jumper).
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CONTROL SYSTEM 11.11.2 Outdoor Unit Controller 11.11.2.
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CONTROL SYSTEM 11.12 Test Mode 11.12.1 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 11.12.
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CONTROL SYSTEM 11.13.1.2 Model Depended Parameters: Parameter name Models 25 35 NLOAD limits as a function of selected indoor fan speed MaxNLOADIF1C MaxNLOADIF2C MaxNLOADIF3C MaxNLOADIF4C MaxNLOADIF5C 40 51 90 127 127 40 55 90 127 127 Indoor Fan speeds IFVLOWC IFLOWC IFMEDC IFHIGHC IFTURBOC IFVLOWH IFLOWH IFMEDH IFHIGHH IFTURBOH 700 850 1050 1200 1300 700 950 1050 1250 1350 NomLoadC NomLoadH 11.13.
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TROUBLESHOOTING 12 TROUBLESHOOTING 12.1 ELECTRICAL & CONTROL 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 4 Min. to discharge the system. Touching the controller before discharging may cause an electrical shock!!! For safe handling of the controller please refer to section 12.3 below. 12.1.
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TROUBLESHOOTING No SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION Compressor is over heated 11 and unit does not generate capacity Units goes into protections and compressor is stopped with no clear reason Compressor motor is generating noise and no suction occurs Water leakage from indoor unit Freezing of outdoor unit in heat mode and outdoor unit base is blocked with ice 12 13 14 15 Unit operates with wrong fan 16 speeds or wrong frequency 12.1.
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TROUBLESHOOTING 12.1.3.1 Indoor unit Diagnostics No 1 2 3 4 5 7 8 9 10 11 … 17 18 19 20 21 22 24 25 26 27 28 29 30 31 Problem RT-1 is disconnected RT-1 is shorted RT-2 is disconnected RT-2 is shorted Reserved Communication mismatch No Communication No Encoder Reserved Outdoor Unit Fault Reserved Defrost protection Deicing Protection Outdoor Unit Protection Indoor Coil HP Protection Reserved Reserved EEPROM Not Updated Bad EEPROM Bad Communication Using EEPROM data Model A Model B Model C Model D 13.1.3.
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TROUBLESHOOTING 13.1.3.
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TROUBLESHOOTING 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.  Run the software and choose the COM port, you can monitor the A/C system state in monitor tab. 12.2 Simple procedures for checking the Main Parts 12.2.1 Checking Mains Voltage. Confirm that the Mains voltage is between 198 and 264 VAC.
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EXPLODED VIEWS AND SPARE PARTS LISTS 13. EXPLODED VIEWS AND SPARE PARTS LISTS 13.1 Indoor Unit: Delta 25, Delta 35 DCI SM DELTAZ 1-E.
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EXPLODED VIEWS AND SPARE PARTS LISTS 13.2 Indoor Unit: Delta 25 DCI No. Part No. Description Quan. 1 453037000 Grill A / DELTA 22,25 1 2 453100500 Grill L axis 1 3 453100600 Grill R axis 1 4 453036500 Filter for DELTA 7/9 2 7 465720000 Silk-screen front frame for Electra 1 8 4525987 SCREW COVER 3 9 453070701 Evap. System Assy./DELTA 22,25 1 10 4523526 BERAING ASSY FAN 1 11 4523523 FAN ASSY PLASTIC 1 12 452784400 IOD-7,9 Air Outlet Assy.
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EXPLODED VIEWS AND SPARE PARTS LISTS 13.3 Indoor Unit: Delta 35 DCI No. Part No. Description Quan. 1 453036800 Grill A / DELTA 12 1 2 453100500 Grill L axis 1 3 453100600 Grill R axis 1 4 453082900 Filter for DELTA 12 2 7 465720001 Silk-screen front frame for Electra 1 8 4525987 SCREW COVER 3 9 453058201 Evap. System Assy./DELTA 35 1 10 4523526 BERAING ASSY FAN 1 11 4527111 FAN ASSY PLASTIC 1 12 452784401 IOD-12 Air Outlet Assy.
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EXPLODED VIEWS AND SPARE PARTS LISTS 13.4 Outdoor Unit: DСR 25 Z, DCR 35 Z R410A DCI SM DELTAZ 1-E.
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EXPLODED VIEWS AND SPARE PARTS LISTS 13.5 No. Outdoor Unit: DСR 25 Z DCI Part No. Description Quan. 1 4522551 Grille A of GCN 1 2 4523441 Front panel A Painting assy 1 3 4519251 Axial Fan OD=400 1 4 467400040 Sensor/OAT & OMT 1 5 467400200 Compressor top thermistor(CTT) 1 6 467400023 Outdoor coil thermistor(OCT) 1 7 460000032R Compressor Assy. Toshiba DA89X1C-20FZ3 1 8 453052500 PAINTING BASE ASSY.
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EXPLODED VIEWS AND SPARE PARTS LISTS 13.6 No. Outdoor Unit: DСR 35 Z DCI Part No. Description Quan. 1 4522551 Grille A of GCN 1 2 4523441 Front panel A Painting assy 1 3 4519251 Axial Fan OD=400 1 4 467400040 Sensor/OAT & OMT 1 5 467400200 Compressor top thermistor(CTT) 1 6 467400023 Outdoor coil thermistor(OCT) 1 7 460000033R Compressor Assy. Toshiba DA108X1C-20FZ3 1 8 453052500 PAINTING BASE ASSY.
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APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► OPERATING MANUAL DELTA 25, 35 DCI / DCR 25Z, 35Z ► INSTALLATION MANUAL DELTA 25, 35 DCI / DCR 25Z, 35Z 14-1 SM DELTAZ 1-E.