Electra PXD 25 DCI Service Manual
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Summary of Contents for Electra PXD 25 DCI
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Page 1: Service Manual
Service Manual DCI PXD Series Indoor Units Outdoor Units PXD 25 DCI ONG 25 DCI PXD 35 DCI ONG 35 DCI PXD 50 DCI ONG 50 DCI REFRIGERANT R410A HEAT PUMP APRIL 2005 CONTENT... - 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.
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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 ELECTRICAL DATA ....................6-1 WIRING DIAGRAMS .....................7-1 REFRIGERATION DIAGRAMS ................8-1 TUBING CONNECTIONS ..................9-1 10. CONTROL SYSTEM .....................10-1 11. -
Page 4: Main Features
INTRODUCTION INTRODUCTION General The PXD split ceiling mounted range comprise the following RC (heat pump) models: PXD 25 DCI, PXD 35 DCI, PXD 50 DCI Main Features The PXD series benefits from the most advanced technological innovations, namely: DC Inverter Technology ●... -
Page 5: Outdoor Unit
INTRODUCTION Filtration Easily accessible, and re-usable pre-filters (mesh) ● Control The microprocessor indoor controller, and an infrared remote control, supplied as standard, providing complete operating function and programming. For further details please refer to the Operation Manual, Appendix A. Outdoor Unit The PXD outdoor units can be installed as floor or wall mounted units by using a wall supporting bracket. - Page 6 INTRODUCTION Matching Table 1.9.1 R410A INDOOR UNITS OUTDOOR UNITS MODEL REFRIGER. WNG25 WNG35 WNG50 PXD25 PXD35 PXD50 ONG25 DCI R410A √ √ √ ONG35 DCI R410A √ √ √ ONG50 DCI R410A √ √ √ The above table lists outdoor units and PXD DCI indoor units which can be matched together. In addition the listed outdoor units can be matched with other types of indoor units such as cassettes and wall mounted.
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Page 7: Rating Conditions
PRODUCT DATA SHEET PRODUCT DATA SHEET PXD 25 DCI R410A Model Indoor Unit PXD 25 DCI Model Outdoor Unit ONG-25 DCI Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 8530(4780~12280) 10920(5120~15350) Capacity 2.5(1.4-3.6) 3.2(1.5~4.5) Power input 0.62(0.42-1.1) 0.93(0.4~1.6) EER (Cooling) or COP(Heating) 4.03... - Page 8 PRODUCT DATA SHEET PXD 35 DCI R410A Model Indoor Unit PXD 35 DCI Model Outdoor Unit ONG-DCI 35 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 11940(5120~15010) 14330(5120~17060) Capacity 3.5(1.5-4.4) 4.2(1.5~5.0) Power input 0.98(0.46-1.3) 1.31(0.35~1.58) EER (Cooling) or COP(Heating) 3.57 3.21 Energy efficiency class...
- Page 9 PRODUCT DATA SHEET Model Indoor Unit PXD 50 DCI Model Outdoor Unit ONG-DCI 50 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 17000(5120-20460) 20460(5120-24550) Capacity 5.0(1.5-6.0) 5.8(1.5~7.2) Power input 1.65(0.5-2.1) 1.69(0.45-2.1) EER (Cooling) or COP(Heating) 3.03 3.43 Energy efficiency class Power supply V/Ph/Hz 220-240V/Single/50Hz...
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Page 10: Rating Conditions
RATING CONDITIONS RATING CONDITIONS Standard conditions in accordance with ISO 5151, ISO 13253 (for ducted units) and EN 14511. Cooling: Indoor: C DB 19 C WB Outdoor: 35 C DB Heating: Indoor: C DB Outdoor: 7 C DB 6 C WB Operating Limits R410A Indoor... -
Page 11: Outline Dimensions
OUTLINE DIMENSIONS OUTLINE DIMENSIONS Indoor Unit: PXD 25, 35, DCI Indoor Unit: PXD 50 DCI Service Manual - PXD DCI Revision Y05-01 CONTENT... - Page 12 OUTLINE DIMENSIONS Outdoor Unit: ONG 25, 35, 50 DCI Revision Y05-01 Service Manual - PXD DCI CONTENT...
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Page 13: Performance Data
PERFORMANCE DATA & PRESSURE CURVES PERFORMANCE DATA PXD25 DCI 5.1.1 Cooling Capacity (kW) – Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ OU COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE 80 - 110 % of nominal... - Page 14 PERFORMANCE DATA & PRESSURE CURVES 5.1.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ OU COIL ENTERING AIR DB/WB DATA TEMPERATURE 2.04 1.89 1.75 -15/-16 0.56 0.61 0.67 2.27 2.12 1.98...
- Page 15 PERFORMANCE DATA & PRESSURE CURVES PXD35 DCI 5.2.1 Cooling Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ OU COIL ENTERING AIR DB 22/15 24/17 27/19 29/21 32/23 DATA TEMPERATURE [ 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal...
- Page 16 PERFORMANCE DATA & PRESSURE CURVES 5.2.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ OU COIL ENTERING AIR DB/WB DATA TEMPERATURE 2.67 2.49 2.30 -15/-16 0.79 0.87 0.95 2.98 2.79 2.60...
- Page 17 PERFORMANCE DATA & PRESSURE CURVES PXD50 DCI 5.3.1 Cooling Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ OU COIL ENTERING AIR DB 22/15 24/17 27/19 29/21 32/23 DATA TEMPERATURE [ 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal...
- Page 18 PERFORMANCE DATA & PRESSURE CURVES 5.3.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ OU COIL ENTERING AIR DB/WB DATA TEMPERATURE 2.64 2.26 1.88 -15/-16 1.18 1.27 1.35 3.48 3.10 2.72...
- Page 19 PERFORMANCE DATA & PRESSURE CURVES Capacity Correction Factor Due to Tubing Length 5.4.1 PXD 25/35 DCI :Cooling 1.01 1.00 0.99 0.98 0.97 0.96 0.95 0.94 0.93 0.92 0.91 9 10 11 12 13 14 15 16 17 18 19 20 Tubing Length [m ] 5.4.2 Heating...
- Page 20 PERFORMANCE DATA & PRESSURE CURVES 5.4.3 PXD 50 DCI :Cooling 1.01 0.99 0.97 0.95 0.93 0.91 0.89 10 12 16 18 22 24 26 28 Tubing length(m ) 5.4.4 Heating 1.02 1.00 0.98 0.96 0.94 0.92 0.90 0.88 0.86 0.84 10 12 14 16 18 20 22 24 26...
- Page 21 PERFORMANCE DATA & PRESSURE CURVES Pressure Curves 5.5.1 Model: PXD 25 DCI Cooling – Test Mode Suction Pressure Vs.Outdoor Temp. 1400 Indoor 1300 DB/WB 1200 22/15 1100 24/17 1000 27/19 29/21 32/23 Outdoor DB Temperature[ºC ] Discharge Pressure Vs. Outdoor Temp.
- Page 22 PERFORMANCE DATA & PRESSURE CURVES 5.5.2 Heating – Test Mode Suction Pressure Vs.Outdoor Temp. 1300 1200 1100 1000 Outdoor WB Temperature [ºC] Discharge Pressure Vs. Outdoor Temp. 4000 3750 Indoor DB 3500 3250 3000 2750 2500 2250 2000 1750 1500 1250 1000 Outdoor WB Temperature [ºC]...
- Page 23 PERFORMANCE DATA & PRESSURE CURVES 5.5.3 Model: PXD 35 DCI Cooling – Test Mode Suction Pressure VS.Outdoor Temp. 1400 Indoor DB/WB 1300 22/15 1200 24/17 1100 27/19 1000 29/21 32/23 Outdoor DB Temperature[ºC ] Discharge Pressure VS. Outdoor Temp. 4000 3750 Indoor 3500...
- Page 24 PERFORMANCE DATA & PRESSURE CURVES 5.5.4 Heating – Test Mode Suction Pressure VS.Outdoor Temp. 1300 1200 1100 1000 Outdoor WB Temperature [ºC] Discharge Pressure VS. Outdoor Temp. 4000 3750 3500 3250 Indoor DB 3000 2750 2500 2250 2000 1750 1500 1250 1000 Outdoor WB Temperature [ºC]...
- Page 25 PERFORMANCE DATA & PRESSURE CURVES 5.5.5 Model: PXD 50 DCI Cooling – Test Mode Suction Pressure VS.Outdoor Temp. 1400 Indoor 1300 DB/WB 1200 1100 22/15 24/17 1000 27/19 29/21 32/23 Outdoor DB Temperature[ºC ] Discharge Pressure VS. Outdoor Temp. 4250 4000 Indoor 3750...
- Page 26 PERFORMANCE DATA & PRESSURE CURVES 5.5.6 Heating – Test Mode Suction Pressure VS.Outdoor Temp. 1100 1000 Outdoor WB Temperature [ºC] Discharge Pressure VS. Outdoor Temp. 4000 3750 3500 Indoor DB 3250 3000 2750 2500 2250 2000 1750 1500 1250 1000 Outdoor WB Temperature [ºC] 5-14 Revision Y05-01...
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Page 27: Electrical Data
ELECTRICAL DATA ELECTRICAL DATA Single Phase Units MODEL PXD 25 DCI PXD 35 DCI PXD 50 DCI To indoor To indoor To indoor Power Supply 1PH-230V-50Hz 1PH-230V-50Hz 1PH-230V-50Hz Max Current, A Inrush Current A Starting Current A 10.5 10.5 10.5 Circuit Breaker A Power Supply Wiring No. -
Page 28: Wiring Diagrams
WIRING DIAGRAMS WIRING DIAGRAMS PXD 25, 35, 50 DCI Service Manual - PXD DCI Revision Y05-01 CONTENT... -
Page 29: Refrigeration Diagrams
REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS PXD 25, 35, 50 DCI / ONG3 25, 35, 50 DCI Service Manual - PXD DCI Revision Y05-01 CONTENT... - Page 30 TUBING CONNECTIONS TUBING CONNECTIONS TUBE (Inch) ¼” ⅜” ½” ⅝” ¾” TORQUE (Nm) Flare Nuts 11-13 40-45 60-65 70-75 80-85 Valve Cap 13-20 13-20 18-25 18-25 40-50 Service Port Cap 11-13 11-13 11-13 11-13 11-13 Valve Protection Cap-end Refrigerant Valve Port (use Allen wrench to open/close) Valve Protection Cap Refrigerant Valve Service Port Cap...
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Page 31: Control System
CONTROL SYSTEM CONTROL SYSTEM 10.1 General Functions and 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. - Page 32 CONTROL SYSTEM Target Frequency Setting 10.3.2 The compressor target frequency is a function of the NLOAD number sent from the indoor controller and the outdoor air temperature. Basic Target Frequency Setting: NLOAD Target Frequency Maximum frequency 10 < NLOAD < 127 Interpolated value between minimum and maximum frequency Minimum frequency Compressor is stopped...
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Page 33: Outdoor Fan Control
CONTROL SYSTEM 10.4 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. - Page 34 CONTROL SYSTEM Outdoor Fan Speed Compressor Frequency (CF) Routine A Routine B Routine C Routine D CF = 0 Very Low OFLowFreq 10 ” CF < Medium Very Low OFLowFreq OFMedFreq ” CF < High Medium OFMedFreq ” CF In cooling mode, the extra rule is as the below: Change To Higher OFAN Cool state (*1) Change To lower...
- Page 35 CONTROL SYSTEM 10.9 Ionizer Control Ionizer is on when unit is on AND indoor fan is on AND Ionizer power switch (on Ionizer) is on 10.10 Electro Static Filter (ESF) Control ESF is on when ESF switch is on, Safety switch is pressed, unit is on, AND indoor fan is on.
- Page 36 CONTROL SYSTEM Model J2 Shorted J2 Opened Wall mounted Compensation Disabled Compensation Enabled Cassette Compensation Enabled Compensation Disabled Ducted Compensation Enabled Compensation Disabled Floor/Ceiling Compensation Disabled Compensation Enabled 10.16 Indoor Fan Control in Heat Mode Indoor fan speed depends on the indoor coil temperature: ICTVL ICTL ICTH...
- Page 37 CONTROL SYSTEM Indoor Coil Defrost Protection 10.19.1 ICT Trend Fast Increasing No change Decreasing Fast Increasing Decreasing ICT < -2 -2 ” ICT < 0 0 ” ICT < 2 2 ” ICT < 4 4 ” ICT < 6 Norm Norm 6 ”...
- Page 38 CONTROL SYSTEM Compressor Temperature Control Status Else Increases Norm Stop Compressor Compressor over Current Protection 10.19.4 Stop-Compresor CCROC4 HzDown2 CCROC3 HzDown1 CCROC2 Stop-Rise CCROC1 Normal Heat Sink over Heating Protection (NA for DCI 25 and 35 10.19.5 HST Trend Decreasing No Change Increasing HST >...
- Page 39 CONTROL SYSTEM Outdoor Coil Deicing Protection 10.19.6 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. Case 3: OCT is Invalid AND TLD >...
- Page 40 CONTROL SYSTEM 10.20 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 3 Levels Logic (used in floor/ceiling models) 10.20.1 Level L2&3...
- Page 41 CONTROL SYSTEM 1 Level Logic (used in all models except for floor/ceiling models) 10.20.2 Level Don’t Normal care Don’t Overflow care 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...
- Page 42 CONTROL SYSTEM 10.23 On Unit Controls and Indicators Indoor Unit Controller Controls and Indicators for All Models 10.23.1 STAND BY INDICATOR Lights up when the Air Conditioner is connected to power and ready to receive the R/C commands Lights up during operation. Blinks for 300 msec., to announce that a R/C infrared signal has been received and stored.
- Page 43 CONTROL SYSTEM Indoor Unit Controls and Indicators for LCD Display 10.23.2 STBY Cool Heat Auto SPT(1*) SPT(1*) SPT(1*) SPT(1*) SPT(1*) OFF(2*) ON(2*) ON(2*) ON(2*) ON(2*) ON(2*) OFF(2*) OFF(2*) OFF(2*) OFF(2*) OFF(2*) OFF(2*) (Low) User User User User User (Med) setting setting setting setting...
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Page 44: Jumper Settings
CONTROL SYSTEM 10.25 Jumper Settings Indoor Unit Controller 10.25.1 Self test Jumper – J1: 0 = Open Jumper (disconnect jumper) / 1 = Close Jumper (connect jumper). OPERATION SELF-TEST NORMAL Compensation Jumper – J2 Model J2 (Default) Compensation WNG/WNG18/WNG30 Activated PXD/AC Deactivated LS/K/KS... - Page 45 CONTROL SYSTEM Model selection Jumper – J7, J8 Model J9- Presence Detector/Power Shedding OPERATION Presence Detector Power Shedding Jumper – J10 OPERATION WNG DCI LCD Note: Jumper 10 states will be ignored for families other than WNG /WNG18/WNG30 (for other families it will always be LED operation).
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Page 46: Test Mode
CONTROL SYSTEM 10.26 Test Mode Entering Test Mode 10.26.1 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 o Mode = Heat, Set point = 30, Room temperature = 20±1, Outdoor temperature = 7±1... - Page 47 CONTROL SYSTEM 10.30 Compressor Frequency Control Outdoor Unit NLOAD setting 10.30.1 The MSMP controller gets the NLOAD from each of the indoor units, and sends a combined NLOAD to the outdoor unit control. The combined NLOAD is a weighted average of the indoor units NLOAD. The weight of the indoor units as a function of their nominal capacity: Indoor Unit Capacity [kW] (kBtu/hr) Capacity Code...
- Page 48 CONTROL SYSTEM 10.34 SW Parameters Indoor Units SW Parameters 10.34.1 General Parameters for All Models: Parameters defining the indoor fan speed as a function of Indoor Coil temperature in heat mode (ICT): ICTST Speed ICT to stop indoor fan ICTVLSpeed ICT to go down to very low speed ICTLSpeed ICT to start in very low speed...
- Page 49 CONTROL SYSTEM NomLoadH Outdoor Units SW Parameters: 10.34.2 Parameter Name DCI25 DCI35 DCI 50 DCI50 DUO DCI 60 Compressor Parameters MinFreqC MaxFreqC MinFreqH MaxFreqH Step1Freq Step2Freq Step3Freq Frequency limits as a function of outdoor air temperature MaxFreqAsOATC MaxFreqAsOAT1H MaxFreqAsOAT2H Compressor Over Heating Protection CTTOH1 CTTOH2 CTTOH3...
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Page 50: Troubleshooting
TROUBLESHOOTING TROUBLESHOOTING Warning!!! When Power Up – the whole outdoor unit controller, including the wiring, is under HIGH VOLTAGE!!! Never open the Outdoor unit before turning off the Power!!! When turned off, the system is still charged (400V)!!! It takes about 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 12.6 below. - Page 51 TROUBLESHOOTING SYMPTOM PROBABLE CORRECTIVE ACTION CAUSE Compressor is on but Problem with Check outdoor fan motor according outdoor fan does not outdoor electronics to the procedure in section 12.5.3 work or outdoor fan below, if not OK replace controller Unit works in wrong Electronics or Check RV power connections, if OK, mode (cool instead of...
- Page 52 TROUBLESHOOTING 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.
- Page 53 TROUBLESHOOTING .3.2 Indoor unit diagnosis and corrective actions Probable Cause Corrective Action Fault Check sensor connections or Sensor failures of replace sensor all types Indoor and Outdoor Replace Indoor controller Communication controllers are with different mismatch versions No Communication Communication or grounding Check Indoor to Outdoor wiring is not good.
- Page 54 TROUBLESHOOTING 11.3.3 Outdoor Unit Diagnastics 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 Bad EEPROM...
- Page 55 TROUBLESHOOTING 11.3.4 Outdoor unit diagnosis and corrective actions Probable Cause Corrective Action Fault Sensors failures of all Check sensors types connections or replace sensors. IPM Fault Electronics HW Check all wiring and problem jumper settings, if OK, replace electronics. Bad EEPROM No action, unless special parameters are required for unit operation.
- Page 56 TROUBLESHOOTING 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.
- Page 57 TROUBLESHOOTING Precaution, Advise and Notice Items .6.1 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.
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Page 58: Exploded Views And Spare Parts Lists
EXPLODED VIEWS AND SPARE PARTS LISTS EXPLODED VIEWS AND SPARE PARTS LISTS 12.1 Indoor Unit: PXD 25, 35 DCI Service Manual - PXD DCI Revision Y05-01 12-1 CONTENT... - Page 59 373244 Right panel 371257 Vertical louver 370281 Air outlet 375209-01 AIRWELL Display panel 375209-05 WESPER Display panel 375209-16 ELECTRA Display panel 375209-17 JOHNSON Display panel 4521827 GORENJEN Display panel 4521831 FAGOR Display panel 372338 Horizontal louver front 372339 Horizontal louver back...
- Page 60 EXPLODED VIEWS AND SPARE PARTS LISTS 12.3 Indoor Unit: PXD 50 DCI Service Manual - PXD DCI Revision Y05-01 12-3 CONTENT...
- Page 61 221554 Filter 307982 Front panel 484002 Air inlet assy 373244 Right panel 371257 Vertical louver 370280 Air outlet 375209-16 ELECTRA Display panel 372336 Horizontal louver front 372337 Horizontal louver back 263034 Swing motor 436665 Step motor 391508 Connect wire 234213...
- Page 62 EXPLODED VIEWS AND SPARE PARTS LISTS 12.5 Outdoor Unit: ONG3 25, 35 DCI Service Manual - PXD DCI Revision Y05-01 12-5 CONTENT...
- Page 63 EXPLODED VIEWS AND SPARE PARTS LISTS 12.6 Outdoor Unit: ONG3 25, 35 DCI No. Part No. Description Unit 1 433218 Front panel A 2 4526340 Air inlet ring-420 3 433223 Painting insulation plate 4 4526476 Axial fan OD=401 5 4527092 DC motor for DCI25/35 6 433215 Motor support 7 4523060 Base painting Assy.
- Page 64 EXPLODED VIEWS AND SPARE PARTS LISTS 12.7 Outdoor Unit: ONG3 50 DCI Service Manual - PXD DCI Revision Y05-01 12-7 CONTENT...
- Page 65 EXPLODED VIEWS AND SPARE PARTS LISTS 12.8 Outdoor Unit: ONG3 50 DCI No. Part No. Description Unit 1 433218 Front panel A 2 4526340 Air inlet ring-420 3 433223 Painting insulation plate 4 4526476 Axial fan OD=401 5 4526475 DC motor for DCI 50 6 4526457 Motor support 7 4527363 Base painting Assy.
- Page 66 APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► OPERATION MANUAL PXD 25, 35, 50 DCI ► INSTALLATION MANUAL PXD 25, 35, 50 DCI Service Manual - PXD DCI Revision Y05-01 13-1 CONTENT...
- Page 67 DC Inverter Split system for Wall / ceiling mounting 25 DCI 35 DCI 50 DCI The appliance shall not be installed in the laundry. NOTE: This manual is for the single split application. For multi split applications please use installation manual supplied within outdoor unit package.
- Page 68 BEFORE STARTING TO WORK IN THE ELECTRIC CASING BOXES. GENERAL RECOMMENDATIONS - Congratulations for having selected an ELECTRA air conditioner. SAFETY DIRECTIONS - Follow the safety rules in force when you are working on your appliance. - Installation and maintenance of the equipment must only be performed by qualified specialists in accordance with the rules of good workmanship and prevailing standards and instructions.
- Page 69 SUMMARY DESCRIPTION Installation/service tools.........................4 Dimensions of Indoor Unit ........................5 Dimensions of Outdoor Units.........................5 INSTALLATION Location of the Indoor Unit .........................6-7 Location of the Outdoor Unit........................8 Refrigerant Line .............................9 Installation ............................10-15 Electrical Connections ........................16-18 MAINTENANCE Scheduled Maintenance .........................19-20 CONTENTS OF PARCEL 1 PXD.
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Page 70: Installation/Service Tools
INSTALLATION/SERVICE TOOLS CAUTION New Refrigerant Air Conditioner Installation THIS AIR CONDTIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE LAYER. R410A refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils because the working pressure of R410A refrigerant is approx. -
Page 71: Dimensions Of Indoor Unit
DIMENSIONS OF INDOOR UNIT R410A ~230V PXD - 25 - DCI PXD - 35 - DCI PXD - 50 - DCI 25-35 DCI 50 DCI DIMENSIONS OF OUTDOOR UNITS R410A MODEL DCI 25 - 35 - 50 AIR INTAKE AIR OUTLET APPENDIX A... - Page 72 INSTALLATION OF THE PXD INDOOR UNIT - Install the wall support of the PXD using the installation template supplied with the unit. - The cut-outs for the unit are shown on this template. - Reminder of MINIMUM clearances to be provided. - Coolant connections can be made on the LH side, on the RH side or at the rear.
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Page 73: Installation
INSTALLATION - Remove the wall support mounted at the rear of your PXD. - To install the wall support, locate the template in order to observe the correct distance between mounting holes marked on it. CAUTION- be careful with the condensate evacuation point: After determining the outlet for the condensate evacuation (LH, RH, rear), make sure that the wall mounting is installed with a slope which favours this evacuation. - Page 74 INSTALLATION OF THE OUTDOOR UNIT - Minimum clearance to respect (in mm). DCI 25-35-50 DRAINING CONDENSATES CAUTION If the heat pump outdoor unit is installed in an area where the outdoor temperature may fall below + 1 C, it is mandatory to provide a system preventing any risk of freezing of the condensate (e.g. heating wire).
- Page 75 REFRIGERANT CONNECTIONS R410A 25-35 DCI 25-35-50 - The indoor unit may be installed above or below the unit - The flare couplings are available as accessories in standard lengths of 2.5, 5 and 8m. - The pipes are delivered coiled and equipped with flare nuts. - Carefully uncoil the pipes in the opposite direction from the tums so as not to flatten them.
- Page 76 INSTALLATION OF TUBING ON WALL SUPPORT - The main advantage of your PXD productis the possibility of locating the coolant tubing on the wall support before installing the unit (using the template supplied). - Place the tube locating template on the wall support. INSTALLATION OF TUBING ON WALL SUPPORT - After choosing your coolant tubing input location (right, left or rear), you can set up your tubing.
- Page 77 INSTALLATION OF TUBING ON WALL SUPPORT - Locate the LIQUID tube above the GAS tube. - Fit the nuts of the (formed) tubing into the recess provided on the template. - Secure the tubing with the clamps provided. - Remove the tubing template; you can now install your unit on its support. NOTE output to the rear - The slanted hole prevents...
- Page 78 INSTALLATION OFTHE INDOOR UNIT PXD - On the PXD, remove: The intake gril. The LH and RH side panels. FOR THE AIR INLET GRILL: 1 Pull the gril forwards. 2 Remove the two end screws. 3 Unscrew the central screw, but do not remove it completely. 4 Unhook the grid.
- Page 79 INSTALLATION OF THE PXD ON THE WALL SUPPORT - Refer to the diagram below, for installation of the PXD. - Ceiling mounting (referto the NOTE below). APPENDIX A...
- Page 80 CONNECTION OF CONDENSATE EVACUATION TUBE - Water condensation must be evacuated directly to the outside; observe an appropriate slope for the evacuation duct, which should slope downwards in the case of a connection to the wastewater system (2.5 cm/m slope). - An S-bend must be installed on the evacuation duct, below the level of the recovery tray of the unit.
- Page 81 VACUUM OF COOLING PIPES AND INDOOR UNIT - Only the outdoor unit is charged with R410A cooling fluid. The indoor unit contains a small quantity of a neutral gas. This the reason it is imperative to vacuum the linking pipes and the indoor unit. ASSEMBLY - The outdoor unit is equipped with a valve allowing to vacuum the installation (large valve) 1 Connect the connectingpipes to the outdoor unit by FLARE NUTS and to the indoor unit by...
- Page 82 CONFIGURATION OF REMOTE CONTROL To change the configuration: 1 - Remove the batteries. 2 - Set the switches. 3 - Reinstall the batteries. 4 - MANDATORILY perform a RESET (see below). RESET FUNCTION: 1 - Remove one batteryand reinstall the battery. 2 - Simultaneously press these 4 keys until the symbols are no longer displayed.
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Page 83: Electrical Connections
ELECTRICAL CONNECTION BETWEEN INDOOR AND OUTDOOR UNIT ELECTRICAL REQUIREMENTS Electrical wiring and connections should be made by qualified electricians and in accordance with local electrical codes and regulation. The air conditioner units must be grounded. The air conditioner unit must be connected to an adequate power outlet from a separate branch circuit protected by a time delay circuit breaker, as... - Page 84 INDICATOR LIGHTS AND CONTROLS ON THE UNIT A) HEATING Comes on during operation. Heating and fil-tration of the air in the room. Sustainment of required ambient temperature. B) COOLING Comes on during operation. Cooling, dehumidification and filtration of the air in the room. Sustainment of required ambient temperature.
- Page 85 ACTIVE CHARCOAL FILTER - An active charcoal filter and its support are supplied as accessories with your product. (1 per filter) - in order to optimise air filtration, you can install it as follows. MAINTENANCE AND REPAIR BEFORE UNDERTAKING MAINTENANCE OPERATIONS, MAKE SURE THAT THE AIR CONDITIONER IS DISCONNECTED FROM THE MAINS.
- Page 86 SERVICING Routine servicing - To ensure the correct operation of the ins-tallation, it is necessary to have preventive maintenance of the indoor and outdoor units carried out by qualified personnel. General installation - Carry out a visual inspection of the complete installation in service. - Check the general cleanness of the installation, and check that the condensate evacuations are not blocked, particularly on the indoor unit, before the summer season.