Electra Alpha 7 Service Manual
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Electra Alpha 7 Service Manual

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Service Manual

REFRIGERANT
R410A
Alpha Series
Indoor Units
Alpha 7
Alpha 9
Alpha 12
JANUARY 2005
Outdoor Units
CON 7 (Alpha)
GCN 9 (Alpha)
GCN 12 (Alpha)
COOLING ONLY
HEAT PUMP

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  • Page 1: Service Manual

    Service Manual Alpha Series Indoor Units Outdoor Units Alpha 7 CON 7 (Alpha) Alpha 9 GCN 9 (Alpha) Alpha 12 GCN 12 (Alpha) REFRIGERANT R410A COOLING ONLY HEAT PUMP JANUARY 2005...
  • Page 2 LIST OF EFFECTIVE PAGES LIST OF EFFECTIVE PAGES Note: Changes in the pages are indicated by a “Revision#” in the footer of each effected page (when none indicates no changes in the relevant page). All pages in the following list represent effected/ non effected pages divided by chapters.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Table of Contents INTRODUCTION ....................1-1 PRODUCT DATA SHEET ..................2-1 RATING CONDITIONS ..................3-1 OUTLINE DIMENSIONS ..................4-1 PERFORMANCE DATA & PRESSURE CURVES ..........5-1 SOUND LEVEL CHARACTERISTICS ..............6-1 ELECTRICAL DATA ....................7-1 WIRING DIAGRAMS .....................8-1 ELECTRICAL CONNECTIONS ................9-1 10. REFRIGERATION DIAGRAMS ................10-1 11.

  • Page 4: Main Features

    The new Alpha split wall mounted is based on the compact range. It comprise the ST (cooling only) and RC (heat pump) models, as follows: • Cooling Only Alpha 7 ST/CON 7 ST; Alpha 9 ST/GCN 9 ST; Alpha 12 ST/GCN 12 ST; • Heat Pump Alpha 7 RC/CON 7 RC;...

  • Page 5: Indoor Unit

    INTRODUCTION 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. •...

  • Page 6: Tubing Connections

    Each unit is supplied with its own installation and operation manuals,one simply remote control manual 1.10 Matching Table 1.10.1 R410A INDOOR UNITS OUTDOOR UNITS MODEL REFRIGER. Alpha 7 Alpha 9 Alpha 12 CON 7 (Alpha) R410A √ GCN 9 (Alpha) R410A √ GCN 12 (Alpha) R410A √...
  • Page 7 PRODUCT DATA SHEET PRODUCT DATA SHEET R410A Model Indoor Unit Alpha 7 Model Outdoor Unit CON 7 (Alpha) Installation Method of Pipe Flared Characteristics Units Cooling Only Cooling Heating Btu/hr 7000 7000 7300 Capacity 2.05 2.05 2.15 Power input 0.68 0.68...
  • Page 8 PRODUCT DATA SHEET Model Indoor Unit Alpha 9 Model Outdoor Unit GCN 9 (Alpha) Installation Method of Pipe Flared Characteristics Units Cooling Only Cooling Heating 9000 9000 9650 Btu/hr Capacity 2.64 2.64 2.83 0.87 0.87 0.93 Power input 3.03 3.03 3.04 EER (Cooling) or COP(Heating) Energy efficiency class...
  • Page 9 PRODUCT DATA SHEET Model Indoor Unit Alpha 12 Model Outdoor Unit GCN 12 (Alpha) Installation Method of Pipe Flared Characteristics Units Cooling Only Cooling Heating 12000 12000 12900 Btu/hr Capacity 3.50 3.50 3.78 1.16 1.16 1.17 Power input 3.02 3.02 3.23 EER (Cooling) or COP(Heating) Energy efficiency class...

  • 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 3.1.1 R410A Indoor...

  • Page 11: Outline Dimensions

    OUTLINE DIMENSIONS OUTLINE DIMENSIONS Indoor Unit Apha 7, 9 Indoor Unit Alpha 12 Service Manual - ALPHA Revision Y05-01 CONTENTS...
  • Page 12 OUTLINE DIMENSIONS Indoor Unit Alpha 17 Outdoor Unit CON 7 (Alpha) Revision Y05-01 Service Manual - ALPHA CONTENTS...
  • Page 13 OUTLINE DIMENSIONS Outdoor Unit GCN 12 (Alpha) AI R I N TAKE AI R O U TLET Service Manual - ALPHA Revision Y05-01 CONTENTS...
  • Page 14 PERFORMANCE DATA & PRESSURE CURVES PERFORMANCE DATA & PRESSURE CURVES Alpha7/CON7 5.1.1 Cooling Capacity (kW) ENTERING AIR WB/DB ID Coil( ENTERING AIR Data DB OD Coil( 15/21 17/24 19/27 21/29 23/32 2.09 2.21 2.32 2.42 2.50 1.47 1.56 1.64 1.60 1.63 0.48 0.48...
  • Page 15 PERFORMANCE DATA & PRESSURE CURVES 5.1.2 Heating ENTERING AIR DB ID COIL( ENTERING WB OD COIL( 1.13 0.50 1.09 0.54 1.04 0.56 1.21 0.52 1.17 0.54 1.13 0.57 1.29 0.52 1.25 0.55 1.20 0.59 1.51 0.58 1.57 0.55 1.44 0.62 2.21 0.59 2.15...
  • Page 16 PERFORMANCE DATA & PRESSURE CURVES Model: Alpha7/CON7 5.2.1 Cooling Discharge Pressure VS.Outdoor Temp 15/21(WB/DB ºC) 17/24(WB/DB ºC) 19/27(WB/DB ºC) 21/29(WB/DB ºC) 23/32(WB/DB ºC) Outdoor Temp.(DB Suction Pressure VS.Outdoor Temp 11.0 15/21(WB/DB ºC) 10.5 17/24(WB/DB ºC) 19/27(WB/DB ºC) 10.0 21/29(WB/DB ºC) 23/32(WB/DB ºC) Outdoor Temp.(DB Service Manual - ALPHA...
  • Page 17 PERFORMANCE DATA & PRESSURE CURVES 5.2.2 Heating Discharge Pressure VS.Outdoor Temp 25 DB (ºC) 20 DB (ºC) 15 DB (ºC) Outdoor Temp.( WB Suction Pressure VS.Outdoor Temp 10.0 15 DB (ºC) 20 DB (ºC) 25 DB (ºC) Outdoor Temp.( WB Revision Y05-01 Service Manual - ALPHA CONTENTS...
  • Page 18 PERFORMANCE DATA & PRESSURE CURVES Alpha9/GCN9 5.3.1 Cooling Capacity (kW) ENTERING AIR WB/DB ID Coil( ENTERING AIR Data DB OD Coil( 15/21 17/24 19/27 21/29 23/32 2.69 2.85 2.98 3.12 3.22 1.76 1.87 1.97 1.92 1.95 0.62 0.62 0.62 0.62 0.62 2.67 2.82...
  • Page 19 PERFORMANCE DATA & PRESSURE CURVES 5.3.2 Heating ENTERING AIR DB ID COIL( ENTERING WB OD COIL( 1.49 0.74 1.43 0.79 1.37 0.83 1.60 0.76 1.54 0.80 1.49 0.85 1.70 0.77 1.64 0.82 1.58 0.86 1.98 0.86 2.07 0.81 1.90 0.91 2.91 0.87 2.83...
  • Page 20 PERFORMANCE DATA & PRESSURE CURVES Model: Alpha9/GCN9 5.4.1 Cooling Discharge Pressure VS.Outdoor Temp 15/21(WB/DB ºC) 17/24(WB/DB ºC) 19/27(WB/DB ºC) 21/29(WB/DB ºC) 23/32(WB/DB ºC) Outdoor Temp.(DB Suction Pressure VS.Outdoor Temp 11.0 15/21(WB/DB ºC) 10.5 17/24(WB/DB ºC) 19/27(WB/DB ºC) 10.0 21/29(WB/DB ºC) 23/32(WB/DB ºC) Outdoor Temp.(DB Service Manual - ALPHA...
  • Page 21 PERFORMANCE DATA & PRESSURE CURVES 5.4.2 Heating Discharge Pressure VS.Outdoor Temp 25 DB (ºC) 20 DB (ºC) 15 DB (ºC) Outdoor Temp.( WB Suction Pressure VS.Outdoor Temp 11.0 10.0 15 DB (ºC) 20 DB (ºC) 25 DB (ºC) Outdoor Temp.( WB Revision Y05-01 Service Manual - ALPHA CONTENTS...
  • Page 22 PERFORMANCE DATA & PRESSURE CURVES Alpha12/GCN12 5.5.1 Cooling Capacity (kW) ENTERING AIR WB/DB ID Coil( ENTERING AIR Data DB OD Coil( 15/21 17/24 19/27 21/29 23/32 3.57 3.78 3.96 4.13 4.27 2.39 2.53 2.67 2.61 2.65 0.82 0.82 0.83 0.83 0.83 3.54 3.75...
  • Page 23 PERFORMANCE DATA & PRESSURE CURVES 5.5.2 Heating ENTERING AIR DB ID COIL( ENTERING WB OD COIL( 1.98 0.94 1.91 1.00 1.83 1.05 2.14 0.96 2.06 1.01 1.98 1.07 2.27 0.97 2.19 1.03 2.12 1.09 2.65 1.08 2.76 1.02 2.53 1.15 3.89 1.09 3.78...
  • Page 24 PERFORMANCE DATA & PRESSURE CURVES Model: Alpha12/GCN12 5.7.1 Cooling Discharge Pressure VS.Outdoor Temp 15/21(WB/DB ºC) 17/24(WB/DB ºC) 19/27(WB/DB ºC) 21/29(WB/DB ºC) 23/32(WB/DB ºC) Outdoor Temp.(DB Suction Pressure VS.Outdoor Temp 10.5 15/21(WB/DB ºC) 10.0 17/24(WB/DB ºC) 19/27(WB/DB ºC) 21/29(WB/DB ºC) 23/32(WB/DB ºC) Outdoor Temp.(DB Service Manual - ALPHA Revision Y05-01...
  • Page 25 PERFORMANCE DATA & PRESSURE CURVES 5.7.2 Heating Discharge Pressure VS.Outdoor Temp 25 DB (ºC) 20 DB (ºC) 15 DB (ºC) Outdoor Temp.( WB Suction Pressure VS.Outdoor Temp 11.0 10.0 15 DB (ºC) 20 DB (ºC) 25 DB (ºC) Outdoor Temp.( WB 5-12 Revision Y05-01 Service Manual - ALPHA...
  • Page 26 SOUND LEVEL CHARACTERISTICS SOUND LEVEL CHARACTERISTICS Sound Pressure Level Figure 1. Wall Mounted Figure 2. Floor Mounted Figure 3. Ducted Figure 4. Cassette Soud Pressure Level Spectrum (Measured as Figure 1) Alpha 7 Alpha 9 NC-70 NC-70 NC-60 NC-60 NC-50 NC-50...
  • Page 27 APPROXIMATE THRESHOLD OF HEARING FOR NC-20 CONTINUOUS NOISE BAND CENTER FREQUENCIES, Hz Outdoor units Microphone Distance from Unit Sound Pressure Level Spectrum (Measured as Figure 5) Alpha 7 Cooling Alpha 7 Heating NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40...
  • Page 28 SOUND LEVEL CHARACTERISTICS Alpha 9 Cooling Alpha 9 Heating NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 APPROXIMATE APPROXIMATE THRESHOLD OF THRESHOLD OF HEARING FOR HEARING FOR NC-20 NC-20 CONTINUOUS CONTINUOUS NOISE NOISE BAND CENTER FREQUENCIES, Hz BAND CENTER FREQUENCIES, Hz Alpha 12 Cooling Alpha 12 Heating NC-70...
  • Page 29 ELECTRICAL DATA ELECTRICAL DATA Single Phase Units MODEL Alpha 7 Alpha 9 Alpha 12 To indoor To indoor To indoor Power Supply 1PH-230V-50Hz 1PH-230V-50Hz 1PH-230V-50Hz Max Current, A Circuit Breaker,A Power Supply Wiring No. X 3x1.0 mm 3x1.0 mm 3x1.0 mm Cross Section mm 5x1.0 mm...

  • Page 30: Service Manual - Alpha Revision Y05-01

    WIRING DIAGRAMS WIRING DIAGRAMS Indoor Unit Alpha 7,9,12 Service Manual - ALPHA Revision Y05-01 CONTENTS...
  • Page 31 WIRING DIAGRAMS Outdoor Unit CON 7 Outdoor Unit CON 7 with easy connection kit Revision Y05-01 Service Manual - ALPHA CONTENTS...

  • Page 32: Revision Y05-01

    WIRING DIAGRAMS Outdoor Unit GCN 9, 12 REV: 03 Outdoor Unit GCN 9,12 with easy connection kit Service Manual - ALPHA Revision Y05-01 CONTENTS...

  • Page 33: Electrical Connections

    ELECTRICAL CONNECTIONS ELECTRICAL CONNECTIONS Alpha 7,9,12, Service Manual - ALPHA Revision Y05-01 CONTENTS...

  • Page 34: Revision Y05-01

    REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS 10.1 Heat Pump Models 10.1.1 Alpha 7, 9, 12 RC OUTDOOR UNIT INDOOR UNIT Service port Sensor Sensor Flared Valves connection Reverse valve Capillary tube Capillary Indoor coil tube Strainer Check Outdoor coil valve COOLING MODE...
  • Page 35 REFRIGERATION DIAGRAMS 10.2 Cooling Only Models 10.2.1 Alpha 7, 9, 12 OUTDOOR UNIT INDOOR UNIT Service port Sensor Flared Valves connection Capillary Indoor coil tube Strainer Outdoor coil 10-2 Revision Y05-01 Service Manual - COMPACT CONTENTS...

  • Page 36: Revision Y05-01

    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...

  • Page 37: Electronic Control

    CONTROL SYSTEM CONTROL SYSTEM ALPHA 7-12 12.1 Electronic Control 12.1.1 Introduction The electronic control information is designed for service applications, and is common to the following groups of air-conditioners: • ST/ RC group -Cooling only / cooling and heating by heat pump.

  • Page 38: Alpha

    CONTROL SYSTEM 12.2 Legend - Alternate Current - Air-Conditioner - ON or OFF status CLOCK - ON/OFF Operation Input, (dry contact) COMP - Compressor - Central Processing Unit ELUM - Extended Louver Upward Movement (Software Jumper) E²PROM, EEP - Erase Enable Programmable Read Only Memory - Heating Element - High Pressure Control - Hardware...
  • Page 39 CONTROL SYSTEM 12.3 Main PCB Controller 12.3.1 COMPACT 7-12 (LEXAN) COMPACT 7-22 Display PCB IR RECIVER STBY LED IR RECIVER STBY LED OPR’ LED MODE BUTTON OPR’ LED MODE BUTTON Service Manual - ALPHA Revision Y05-01 12-3 CONTENTS...

  • Page 40: Power

    CONTROL SYSTEM 12.4 General functions 12.4.1 COMP operation For each Mode including POWER OFF & SB, a Min time delay of 3 min before COMP restarting, excluding DEICING Mode The Min operation time of COMP under different operating conditions is Min operation time of Operation Mode COMP...

  • Page 41: Alpha

    CONTROL SYSTEM 12.4.5 Protections • High pressure protection is applicable to all operating modes. • Deicing control is valid in Heat and Auto Heat Mode only. • Defrosting control is valid in Dry, Cool, Heat and Auto Modes. • No reset after protection modes. 12.4.6 Thermistors operation •...
  • Page 42 CONTROL SYSTEM 12.4.6.2 Handling the thermistor faults in a COMP unit ICT/OCT thermistor is disconnected or shorted - The invalid thermistor temperature is replaced by 43 c, so that the unit can continue the normal operation. All protections related to that faulty thermistor will be disabled.
  • Page 43 CONTROL SYSTEM 12.5 Cooling Mode - General Room Temperature, RT, is detected by • RAT in normal operation, or • RCT (R/C sensor) in I-FEEL mode. The resolution of RT is 1 • RT is activating COMP/WVL if (RT > SPT), and •...
  • Page 44 CONTROL SYSTEM 2.5.1 Cooling Mode: Cool, Auto (at Cooling) Temp: Selected desired temperature. Fan: HIGH, MED, LOW Timer: Any I Feel: On or Off Control function Maintains room temp at desired level by comparing RT and SPT. (RT - SPT) [ COMP (WVL) OFAN...
  • Page 45 CONTROL SYSTEM 12.5.2 Cooling with Autofan Mode: Cool, Auto (at cooling) Temp: Selected desired temperature Fan: Auto Timer: Any I Feel: On or Off Control function Maintains room temp at desired level and controls the IFAN speed for optimal comfort. (RT - SPT) [ COMP (WVL)

  • Page 46: Heating Mode

    CONTROL SYSTEM 12.6 Heating Mode 12.6.1 Heating Mode - General • In heating Mode, temp. compensation schedule will be activated for wall mounted units. Add to SPT SPT [ I-FEEL ON I-FEEL OFF 18 ≤ SPT ≤ 27 27 < SPT ≤ 30 Notes : •...
  • Page 47 CONTROL SYSTEM 12.6.3 HE operation • For all Groups, HE can be ON only when IFAN is ON. • For all Groups, HE switches to OFF when ICT > 50 c, and is activated again when ICT ≤ 45 • In SH or RC group, HE operation is limited by the following graph: General : ICT [...
  • Page 48 CONTROL SYSTEM 12.6.4 Heating, RC or SH Group Mode: Heat, Auto (at heating) Temp: Selected desired temperature Fan: HIGH, MED, LOW Timer: Any I Feel: On or Off Control function Maintains room temp. at desired level by comparing RAT or RCT to SPT. (RT - SPT) [ COMP (WVL)
  • Page 49 CONTROL SYSTEM 12.6.5 Heating, RC or SH Group with Autofan Mode: Heat, Auto (at heating) Temp: Selected desired temperature Fan: Auto Timer: Any I Feel: On or Off Control function Maintains room temp at desired level by controlling COMP, IFAN and OFAN. (RT - SPT) [ COMP (WVL)
  • Page 50 CONTROL SYSTEM 12.6.6 OFAN operation is controlled by the graph below when 1. (RAT ≥ SPT – 2 c), AND 2. (ICT ≥ 45 c), AND 3. (COMP is ON) Otherwise, OFAN runs together with COMP. OCT [ OFAN Revision Y05-01 Service Manual - ALPHA 12-14 CONTENTS...
  • Page 51 CONTROL SYSTEM 12.7 Automatic Cooling or Heating 12.7.1 Automatic Cooling or Heating - General • Switching-temperature between Cooling and Heating is SPT ± 3 • Autofan in Automatic Cooling and Heating Mode will activate “Cooling with Autofan Mode” and “Heating with Autofan Mode” respectively. •...
  • Page 52 CONTROL SYSTEM 12.7.2 Auto Cooling or Heating, RC or SH Groups Mode: Auto Temp: Selected desired temperature Fan: Timer: Any I Feel: On or Off Control function Maintains room temp at desired level by selecting between cooling and heating modes. (RT - SPT) [ Auto Heat Mode Auto Cool Mode...

  • Page 53: Dry Mode

    CONTROL SYSTEM 12.8 Dry Mode 12.8.1 Dry, ST or RC group Mode: Dry Temp: Selected desired temp Fan: Low (automatically selected by software) Timer: Any I FEEL: Control function Reduce room humidity with minimum temp. fluctuations by operating in Cool Mode with low speed IFAN.
  • Page 54 CONTROL SYSTEM 12.9 Protection 12.9.1 Cooling Mode Protections Indoor Coil Defrost Mode: Cooling, Dry, Auto Temp: Selected desired temp. Fan: Timer: Any I Feel: On or Off Control Function Protect the indoor coil from ice formation at low ambient temperature. ICT [ OFAN COMP...
  • Page 55 CONTROL SYSTEM 12.9.2 High Pressure Protection Mode: (Auto) Cooling or Dry Temp: Selected desired temp. Fan: Timer: Any I Feel: On or Off Control Function To protect the COMP from the high pressure built-up in the outdoor coil during normal cooling operation, by switching OFF the IFAN and COMP.
  • Page 56 CONTROL SYSTEM 12.9.3 Heating Mode Protections Outdoor coil Deicing (excluding RH Group) Mode: Heating, Auto (at heating) Temp: Selected desired Temp Fan: Timer: Any I FEEL: Control function Protects the Outdoor coil from ice formation by controlling COMP & RV operation. Scope This new deicer is designed to operate at extreme temp conditions.
  • Page 57 CONTROL SYSTEM Deicing procedure OCT [ (DDT) 3 min 3 min max 12 min. COMP DI (note 1) DI (note 2) OFAN IFAN is forced to Low Speed IFAN HEs are forced ON IFAN Note 3 HEs are forced OFF OPER BLINK Notes :...
  • Page 58 CONTROL SYSTEM 12.9.4 High pressure protection (excluding RH Group) Mode: (Auto) Heating Fan: Timer: Any I Feel: On or Off Control Function Protect the Compressor from high pressure by switching OFF the OFAN and COMP. ICT [ For all models except WAX For WAX model COMP COMP is forced OFF...
  • Page 59 CONTROL SYSTEM 12.10 Timer Mode: Any Temp. Selected desired temp Fan: Timer: Timer On, Timer Off I Feel: On or Off Control function • Starts or stops the unit operation after pre-set time. If RC-1 is used, the timer setting will be (0.5 - 24 Hr) from the moment the timer is set. The minimum resolution is 30 minutes.

  • Page 60: Forced Operation

    CONTROL SYSTEM 12.11 Forced Operation Forced operation allows units to start, stop and operate in Cooling or Heating in pre-set temperature according to the following table: Pre-set Temp for : Forced operation mode WMZ, WMF,WNG models Cooling 22°C Heating 28°C Note: •...

  • Page 61: Sleep Mode

    CONTROL SYSTEM 12.12 Sleep Mode Mode: Any Temp: Set – desired temperature selected Fan: Timer: Interact with Sleep Timer as described in sect 12.2 I Feel: On or Off The Sleep mode is activated by using the sleep button on the R/C. In Sleep Mode, the unit will automatically adjust the SPT to turn up/down the room temperature (RT) gradually to provide maximum comfort to the user in sleep.
  • Page 62 CONTROL SYSTEM 12.12.2 Time adjustment in Sleep Mode The user can make use of the Off-Timer to extend the Sleep Time from 7 hours to 12 hour (max). The operation of the new “Extended Sleep Mode” is illustrated by the graphs below.
  • Page 63 CONTROL SYSTEM 12.13 Controller Self-Test Procedure 12.13.1 By Shorting Test Jumper J1 SELF-TEST FLOW CHART FOR CONTROLLER (VERSION 4V5 OR HIGHER) SHORT JUMPER Step 1 RC/ST TEST (CONTROL PCB) MODEL CONFIGURATION TEST PRESS ON Step 2 POWER STEP MOTOR TEST BUTTON FREQUENCY TEST...
  • Page 64 CONTROL SYSTEM 12.13.2 By Remote Control Settings: 1: TURNING ON THE POWER. Turn ON the power, make sure that the unit is in operation. STEP 2 : ENABLE SELF-TEST MODE • Use the remote control to send the first settings to display / indoor unit HEAT mode, HIGH IFAN, set temperature to 16 ºC, no I-FEEL Sleep or any other timer settings are needed.
  • Page 65 CONTROL SYSTEM STEP 4 : AUTO LED WALK TEST. • All the LEDS will turn OFF. • All the LEDS will turn ON for 1 second one by one in the following sequence: STAND-BY OPERATE TIMER FILTER COOL HEAT. • In PRX all the LEDS will turn ON for 1 second one by one in the following sequence : 18 °c 20 °c...
  • Page 66 CONTROL SYSTEM Fail condition: 0 sec - STAND-BY is turned ON 3 sec - STAND-BY, OPER, TIMER and FILTER are turned ON • When the timing reset test is completed, the next test will start automatically. STEP 9: MEMORY TEST (EEPROM) •...
  • Page 67 CONTROL SYSTEM 12.14 On Unit Indicators and Controls Lights up when the Air Conditioner is connected to power and STAND BY ready to receive the R/C commands INDICATOR Blinks continuously in case of any thermistor failure. Lights up during operation. Blinks for 300 ms, to announce that a R/C infrared signal has been received and stored.
  • Page 68 CONTROL SYSTEM 12.15 Clock Random Delay From 0 to 2.5 seconds Clock Switch Open Clock Switch close The Clock is activate according to the following table: A/C STATE CLOCK STATE CLOCK ACTION A/C NEW STATE (clock is changed) (after clock is changed) before clock is changed) before clock is changed) OFF by...

  • Page 69: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING SYMPTON PROBABLE CAUSE CORRECTIVE ACTION The stand-by There is no correct voltage -If the voltage is low repair power indicator (red led) between the line and neutral supply. on the central terminals on main P.C.B control display -If there is no voltage repair panel doesn’t light general wiring.
  • Page 70 TROUBLESHOOTING SYMPTON PROBABLE CAUSE CORRECTIVE ACTION No cooling or Outdoor fan motor faulty or -Replace P.C.B. heating only other fault caused, compressor -Outdoor fan blocked remove indoor fan works. overload protection cut out. obstructions. Only indoor fan Outdoor fan blocked. -Remove obstructions.

  • Page 71: Exploded Views And Spare Parts Lists

    EXPLODED VIEWS AND SPARE PARTS LISTS EXPLODED VIEWS AND SPARE PARTS LISTS 14.1 Indoor Unit Alpha 7, 9, 12 Service Manual - ALPHA Revision Y05-01 14-1 CONTENTS...
  • Page 72 EXPLODED VIEWS AND SPARE PARTS LISTS 14.2 Indoor Unit Alpha 7, 9 Part No. Description 4525979 Grille A 4527484 Grille B 4527485 Grille C 4525989 Air Filter 4523901 Active Carbon Filter (Optional) 4525990 Filter Support (Optional) 4527003 Printing Frame “Electra”for Isreal 4527004 Printing Frame “Fagor”...
  • Page 73 Grille B 4527503 Grille C 4527507 Air Filter 4527359 Active Carbon Filter (Optional) 4527508 Filter Support (Optional) 452766800 Printing Frame “Electra”for Isreal 452766801 Printing Frame “AIRWELL” 452766802 Printing Frame “GORNEJE” 452766803 Printing Frame “Belair” 452766804 Printing Frame “Relax” 452766805 Printing Frame “Electra”for Europent 452766806 Printing Frame “Fagor”...
  • Page 74 EXPLODED VIEWS AND SPARE PARTS LISTS 14.4 Outdoor Unit CON 7 RC 14-4 Revision Y05-01 Service Manual - ALPHA CONTENTS...
  • Page 75 EXPLODED VIEWS AND SPARE PARTS LISTS 14.5 Outdoor Unit CON 7 RC Part No. Description 436358 L.lifter 4526671 Front Panel 4526481 CON Outdoor Grille 4527483 Screw ST4X10-C-H DK>9 453044400 Partition plate 4525427 Clip for capacitance 455000108 Double patch Capacitor for fan motor 2uF 236179 2 Poles Terminal Block 453057000...
  • Page 76 EXPLODED VIEWS AND SPARE PARTS LISTS 14.6 Outdoor Unit CON 7 ST 14-6 Revision Y05-01 Service Manual - ALPHA CONTENTS...
  • Page 77 EXPLODED VIEWS AND SPARE PARTS LISTS 14.7 Outdoor Unit CON 7 ST Part No. Description 436358 L.lifter 4526671 Front Panel 4526481 CON Outdoor Grille 4527483 Screw ST4X10-C-H DK>9 453044400 Partition plate 4525427 Clip for capacitance 455000108 Double patch Capacitor for fan motor 2uF 453057000 Pedestal/Control 4514588...
  • Page 78 EXPLODED VIEWS AND SPARE PARTS LISTS 14.8 Outdoor Unit CON 7 RC with easy connection kit 14-8 Revision Y05-01 Service Manual - ALPHA CONTENTS...
  • Page 79 EXPLODED VIEWS AND SPARE PARTS LISTS 14.9 Outdoor Unit CON 7 RC with easy connection kit Part No. Description 436358 L.lifter 4526671 Front Panel 4526481 CON Outdoor Grille 4527483 Screw ST4X10-C-H DK>9 453044400 Partition plate 4525427 Clip for capacitance 453054400 Fixing plate/Terminal Plate 453057000 Pedestal/Control...
  • Page 80 EXPLODED VIEWS AND SPARE PARTS LISTS 14.10 Outdoor Unit CON 7 ST with easy connection kit 14-10 Revision Y05-01 Service Manual - ALPHA CONTENTS...
  • Page 81 EXPLODED VIEWS AND SPARE PARTS LISTS 14.11 Outdoor Unit CON 7 ST with easy connection kit Part No. Description 436358 L.lifter 4526671 Front Panel 4526481 CON Outdoor Grille 4527483 Screw ST4X10-C-H DK>9 453044400 Partition plate 4525427 Clip for capacitance 453054400 Fixing plate/Terminal Plate 236179 2 Poles Terminal Block...
  • Page 82 EXPLODED VIEWS AND SPARE PARTS LISTS 14.12 Outdoor Unit GCN 9, 12 RC 14-12 Revision Y05-01 Service Manual - ALPHA CONTENTS...
  • Page 83 EXPLODED VIEWS AND SPARE PARTS LISTS 14.13 Outdoor Unit GCN 9 RC R22 Part No. Description 4516158 PAINTED COVER PANEL ASSY. 4522551 Grill A of GCN 436358 Left Handle 4523441 Front Panel A Painting Assy. 4516907 Base Painting Assy. 453086200 Side Plate Painting Assy.
  • Page 84 EXPLODED VIEWS AND SPARE PARTS LISTS 14.14 Outdoor Unit GCN 12 RC Part No. Description 4516158 PAINTED COVER PANEL ASSY. 4522551 Grill A of GCN 436358 Left Handle 4523441 Front Panel A Painting Assy. 4523862 Base Painting Assy. 453086200 Side Plate Painting Assy. 4516857 Big Side Cover 204107...
  • Page 85 EXPLODED VIEWS AND SPARE PARTS LISTS 14.15 Outdoor Unit GCN 9,12 ST Service Manual - ALPHA Revision Y05-01 14-15 CONTENTS...
  • Page 86 EXPLODED VIEWS AND SPARE PARTS LISTS 14.16 Outdoor Unit GCN 9 ST Part No. Description 4516158 PAINTED COVER PANEL ASSY. 4522551 Grill A of GCN 436358 Left Handle 4523441 Front Panel A Painting Assy. 4516907 Base Painting Assy. 453086200 Side Plate Painting Assy. 4516857 Big Side Cover 204107...
  • Page 87 EXPLODED VIEWS AND SPARE PARTS LISTS 14.17 Outdoor Unit GCN 12 ST Part No. Description 4516158 PAINTED COVER PANEL ASSY. 4522551 Grill A of GCN 436358 Left Handle 4523441 Front Panel A Painting Assy. 4523862 Base Painting Assy. 453086200 Side Plate Painting Assy. 4516857 Big Side Cover 204107...
  • Page 88 EXPLODED VIEWS AND SPARE PARTS LISTS 14.18 Outdoor Unit GCN 9, 12 RC with easy connection kit 14-18 Revision Y05-01 Service Manual - ALPHA CONTENTS...
  • Page 89 EXPLODED VIEWS AND SPARE PARTS LISTS 14.19 Outdoor Unit GCN 9 RC with easy connection kit Part No. Description 4516158 PAINTED COVER PANEL ASSY. 4522551 Grill A of GCN 436358 Left Handle 4523441 Front Panel A Painting Assy. 4516907 Base Painting Assy. 453086200 Side Plate Painting Assy.
  • Page 90 EXPLODED VIEWS AND SPARE PARTS LISTS 14.20 Outdoor Unit GCN 12 RC with easy connection kit Part No. Description 4516158 PAINTED COVER PANEL ASSY. 4522551 Grill A of GCN 436358 Left Handle 4523441 Front Panel A Painting Assy. 4523862 Base Painting Assy. 453086200 Side Plate Painting Assy.
  • Page 91 EXPLODED VIEWS AND SPARE PARTS LISTS 14.21 Outdoor Unit GCN 9, 12 ST with easy connection kit Service Manual - ALPHA Revision Y05-01 14-21 CONTENTS...
  • Page 92 EXPLODED VIEWS AND SPARE PARTS LISTS 14.21 Outdoor Unit GCN 9 ST with easy connection kit Part No. Description 4516158 PAINTED COVER PANEL ASSY. 4522551 Grill A of GCN 436358 Left Handle 4523441 Front Panel A Painting Assy. 4516907 Base Painting Assy. 453086200 Side Plate Painting Assy.
  • Page 93 EXPLODED VIEWS AND SPARE PARTS LISTS 14.21 Outdoor Unit GCN 12 ST with easy connection kit Part No. Description 4516158 PAINTED COVER PANEL ASSY. 4522551 Grill A of GCN 436358 Left Handle 4523441 Front Panel A Painting Assy. 4523862 Base Painting Assy. 453086200 Side Plate Painting Assy.

  • Page 94: Appendix A

    APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► INSTALLATION AND OPERATION MANUAL ALPHA 7, 9, 12 16-1 Service Manual - ALPHA Revision Y05-01 CONTENTS...
  • Page 95 AIR CONDITIONER SPLIT WALL MOUNTED ENGLISH CLIMATISEUR SPLIT MURAL FRANCAIS CLIMATIZADOR SPLIT MURAL ESPANOL CONDIZIONATORE D'ARIA A PARETE SPLIT ITALIANO KLIMAGERAET IN SPLIT BAUWEISE DEUTSCH P R O G R A M M I N G A N D O P E R A T I N G M A N U A L M A N U E L D ' U T I L T S A T I O N E T D E P R O G R A M M A T I O N M A N U A L D E U T I L I Z A C I O N Y D E P R O G R A M M A C I O N M A N U A L E D I U T I L I Z Z O E D I P R O G R A M M A Z I O N E...
  • Page 96 AIR CONDITIONER SPLIT WALL MOUNTED PROGRAMMING AND OPERATING APPENDIX A...
  • Page 97 CONTENTS INTRODUCTION SYSTEM DESCRIPTION OPERATION MODES, FUNCTIONS AND FEATURES USE OF WIRELESS REMOTE CONTROL ON-UNIT INDICATORS AND CONTROLS REMOTE CONTROL OPERATION PROCEDURE ・Turning on the air conditioner ・Ventilating operation ・Cooling operation ・Cooling operation with auto fan mode ・Heating operation ・Heating operation with auto fan mode ・Auto cooling / heating operation ・Dry operation ・Selecting the temperature...

  • Page 98: Introduction

    INTRODUCTION This Split Air Conditioner is desighned for versatile applications: ・Cooling air in the summer. OPERATING TEMPERATURE RANGE: ・Dehumidifying the air at high humidity conditions. (According to T temperature condition) Cooling: 21 ～ 43 C ・Heating. Heating: -7 ～ 21 C IMPORTANT NOTICE: ・Ventilation.

  • Page 99: System Description

    SYSTEM DESCRIPTION Air intake grille Supply air flap (louver) Air filter Power cord Unit's indicators and on unit control Horizontal air flow defecting louvers Suction line Liquid line Power cable Control wire Condensate tube Outdoor unit air intake Outdoor unit air outlet Remote control Air outlet...

  • Page 100: Operation Modes, Functions And Features

    OPERATION MODES, FUNCTIONS AND FEATURES COOL Cools, dehumidifies and filters the room air. Maintains the desired room temperature. HEAT Heats and filters the room air. Maintains the desired room temperature. AUTO Automatically switches from COOLING to HEATING or from HEATING to COOLING, maintaining the desired temperature according to the room conditions.
  • Page 101 AUTO The air louvers is automatically positioned for the most suitable blow-out angle, LOUVRE when COOL, HEAT, DRY or FAN modes are selected. When the air conditioner is turned off, the flap will close automatically for an aesthetic appearance. VERTICAL Automatic swing of supply air in vertical direction.

  • Page 102: Use Of Wireless Remote Control

    USE OF WIRELESS REMOTE CONTROL PRIOR TO OPERATION Prior to operating your air conditioner, make sure that: ・ The indoor unit is properly plugged into power.(Except for multi-split models). ・ Indicator(A)on the unit's display is lit, meaning that the air conditioner is ready to accept your remote control commands.

  • Page 103: On-Unit Indicators And Controls

    ON-UNIT INDICATORS AND CONTROLS STAND-BY INDICATOR Lights up when the air conditioner is connected to power and ready to receive the remote control commands. OPERATION INDICATOR Lights up during operation. Blinks once to announce that the remote control infrared signal has been received and stored.

  • Page 104: Remote Control

    REMOTE CONTROL START/STOP button Operation mode selection button COOLING HEATING AUTO COOL/HEAT AUTO FAN SPEED and AUTO FAN button Room temperature UP button Room temperature DOWN Button SLEEP button MODE Airflow direction AUTO-CONTROL button TIMER button TIMER UP button TIMER DOWN button LCD operation display Infrared signal transmitter...

  • Page 105: Operation Procedure

    OPERATION PROCEDURE TURNING ON THE AIR CONDITIONER AUTO Press START/STOP button (1) to turn the air conditioner. After connecting to the power supply, The indicator (A) on the air conditioner light up, indicating that the MODE air conditioner is in the standby status. Please note that LCD operation display (11) will always show the last mode of operation and the previous function...

  • Page 106: Auto Cooling/Heating Operation

    AUTO COOLING/HEATING OPERATION AUTO Select the AUTO mode by pressing MODE button (2). Switch to the desired MODE FAN SPEED or to AUTO FAN by pressing button (3). Select suitable temperature setting. The air flap will automatically move to either horizontal air delivery for cooling or to vertical air delivery for heating.

  • Page 107: Timer Operation

    TIMER OPERATION Press TIMER select button (8) to activate the timed operation mode. Each time you press TIMER button (8) is pressed, one of the following four type of operation AUTO modes will appear on the LCD display. The operation modes are sequenced in turn in the direction of arrow.

  • Page 108: Automatic Vertical Air Swing

    AUTO AUTOMATIC VERTICAL AIR SWING MODE Press button (7) to activate the auto air swing. By Pressing button (7) again you can stop the auto swing and position the air flap at any desired anle. TURNING OFF THE AIR CONDITIONER AUTO Press START/STOP button (1) to turn off the air conditioner.

  • Page 109: Protection Modes

    PROTECTION MODES Your air conditioner includes several automatic protection modes, which enables you to use itvirtually at any time and in any season, regardless of the outdoor temperature. Some of the protection modes are listed below: Mode Operation Protection Controlled conditons from remedy...

  • Page 110: Care And Maintenance

    CARE AND MAINTENANCE Befor performing any maintenance procedure, make sure to disconnect the air conditioner from the power. CLEANING THE AIR FILTER ・ To remove the air filters lift up the panel. Push the air filters up slightly to unlock them. Pull out the filters clean the filter by washing in warm soapy water and dry thorougly Align and fit the filters in place.

  • Page 111: Operating Tips

    OPERATING TIPS ・ Set a suitable room temperature; excessively low room temperature is not good for your health and wastes electricity. Avoid frequent setting of the temperature. ・ During cooling, avoid direct sun. Keep curtains and blinds closed. Close doors and windows to keep the cool air in the room. ・...

  • Page 112: Precautions

    PRECAUTIONS ・Use the proper electrical fuse. Do not pull out the power cord unless the unit is turned off. ・Do not start or stop operation by disconnecting the power cord. ・Do not obstruct or block the air inlet or air outlet of the air conditoner.

  • Page 113: Before Calling For Service

    BEFORE CALLING FOR SERVICE Before calling for service, please check the following common malfunctions and correct it as needed. Problem Cause Remedy Unit does not Unit not connected ■ Plug in the power □ operate. Stand- to power cord by indicator does □...
  • Page 114 ENGLISH Indoor/Outdoor Unit Installation Diagram Attached accessories. SELECT THE BEST LOCATION INDOOR UNIT INSTALLATION Required tools for Installation Works (Refer to "Select the best location" section) Accessories part Qty. No. Accessories part Qty. Piping direction Length of power supply cord Installation plate Operation and (Front side)

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