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 9 DF
Alpha 12
Alpha 12 DF
Alpha 17
Alpha 17 DF
OCTOBER - 2007
Outdoor Units
CON 7 (Alpha)
GCN 9 (Alpha)
ONG3-9
GCN 12 (Alpha)
ONG3-12
ONG3-17 (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 9 DF ONG3-9 Alpha 12 GCN 12 (Alpha) Alpha 12 DF ONG3-12 Alpha 17 ONG3-17 (Alpha) Alpha 17 DF REFRIGERANT R410A...
  • 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: Introduction

    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; Alpha 17 ST/ONG 17 ST;...

  • 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 Each unit is supplied with its own installation and operation manuals. 1.10 Matching Table 1.10.1 R410A INDOOR UNITS OUTDOOR UNITS MODEL REFRIGER. Alpha 7 Alpha 9 Alpha 12 Alpha 17 CON 7 (Alpha) R410A √ GCN 9 (Alpha) R410A √...

  • Page 7: Product Data Sheet

    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: Rating Conditions

    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 Indoor unit Delta 9RC/ST fixed rpm R410A Model Outdoor unit ONG3-9 R410A B1 Characteristics Cooling Heating Units Coolin g Onl y 8870 Btu/hr 8870 9720 Total 2.85 Capacity (4) 1940 Sensible capacit y 1940 0.98 Moisture removal l/hr 0.98 Power input (4)
  • Page 10 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 11 PRODUCT DATA SHEET Indoor unit Delta 12RC/ST fixed rpm R410A Model Outdoor unit ONG3-12 R410A B1 Characteristics Cooling Heating Units Cooling Only 12280 Btu/hr 11260 11260 Total 3.60 Capacity (4) 2.585 Sensible capacity 2.585 1.05 Moisture removal l/hr 1.05 Power input (4) 1.01 1.030 1.01...
  • Page 12 PRODUCT DATA SHEET Model Indoor Unit Alpha 17 Model Outdoor Unit ONG3 17 (Alpha) Installation Method of Pipe Flared Characteristics Units cooling only Cooling Heating 17570 17570 18250 Btu/hr Capacity 5.15 5.15 5.35 1.70 1.70 1.65 Power input 3.03 3.03 3.24 EER (Cooling) or COP(Heating) Energy efficiency class...
  • Page 13 PRODUCT DATA SHEET Delta 17RC/ST fixed rpm R410A Model Indoor Unit Model Outdoor Unit ONG3 17 (Alpha) Installation Method of Pipe Flared Characteristics Units cooling only Cooling Heating 17570 17570 18250 Btu/hr Capacity 5.15 5.15 5.35 1.70 1.70 1.65 Power input 3.03 3.03 3.24...

  • Page 14: Operating Limits

    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 15: Outline Dimensions

    OUTLINE DIMENSIONS OUTLINE DIMENSIONS Indoor Unit: Apha 7, 9 (Omega) Indoor Unit: Alpha 12 (Omega) Service Manual - ALPHA Revision Y05-02...
  • Page 16 OUTLINE DIMENSIONS Indoor Unit: Alpha 17 Indoor Unit: Alpha 9DF Revision Y05-02 Service Manual - ALPHA...
  • Page 17 OUTLINE DIMENSIONS Indoor Unit: Alpha 12DF Indoor Unit Alpha 17DF Service Manual - ALPHA Revision Y05-02...
  • Page 18 OUTLINE DIMENSIONS Outdoor Unit CON 7 (Alpha) Outdoor Unit GCN 9, 12 (Alpha) AI R I N TAKE AI R O U TLET Revision Y05-02 Service Manual - ALPHA...
  • Page 19 OUTLINE DIMENSIONS Outdoor Unit ONG3- 9, 12, 17 (Alpha) Service Manual - ALPHA Revision Y05-02...

  • Page 20: Performance Data & Pressure Curves

    PERFORMANCE DATA & PRESSURE CURVES PERFORMANCE DATA & PRESSURE CURVES Alpha7/CON7 5.1.1 Cooling Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR WB/DB ID Coil( ENTERING AIR Data DB OD Coil( 15/21 17/24 19/27 21/29 23/32 2.16 2.24...
  • Page 21 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 22 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 23 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 Y05-02 Service Manual - ALPHA...
  • Page 24 PERFORMANCE DATA & PRESSURE CURVES Alpha9/GCN9 5.3.1 Cooling Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR WB/DB ID Coil( ENTERING AIR Data DB OD Coil( 15/21 17/24 19/27 21/29 23/32 2.78 2.88 2.95 3.02 3.07 1.78 1.86...
  • Page 25 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 2.83 0.93 2.91...
  • Page 26 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 27 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 Y05-02 Service Manual - ALPHA...
  • Page 28 PERFORMANCE DATA & PRESSURE CURVES Alpha12/GCN12 5.5.1 Cooling Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR WB/DB ID Coil( ENTERING AIR Data DB OD Coil( 15/21 17/24 19/27 21/29 23/32 3.69 3.82 3.91 4.00 4.06 2.42 2.52...
  • Page 29 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 30 PERFORMANCE DATA & PRESSURE CURVES Model: Alpha12/GCN12 5.6.1 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 Y05-02...
  • Page 31 PERFORMANCE DATA & PRESSURE CURVES 5.6.2 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 Y05-02 Service Manual - ALPHA...
  • Page 32 PERFORMANCE DATA & PRESSURE CURVES Model: Alpha17/ ONG17 R410A 5.7.1 Cooling Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR WB/DB ID COIL ( °C) ENTERING AIR DATA DB OD COIL (°C) 15/21 17/24 19/27 21/29 23/32 5.43...
  • Page 33 PERFORMANCE DATA & PRESSURE CURVES 5.7.2 Heating Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR DB ID COIL ( °C) ENTERING AIR WB OU COIL ( °C) 2.81 1.32 2.70 1.41 2.59 1.48 3.02 1.35 2.92 1.43...
  • Page 34 PERFORMANCE DATA & PRESSURE CURVES 5.9. Model: Alpha17/ONG3-17 5.9.1 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 35 PERFORMANCE DATA & PRESSURE CURVES 5.9.2 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 5-16 Revision Y05-02 Service Manual - ALPHA...

  • Page 36: Sound Level Characteristics

    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 37: Outdoor Units

    CONTINUOUS CONTINUOUS NOISE NOISE BAND CENTER FREQUENCIES, Hz 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 38 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 NC-20 HEARING FOR NC-20 CONTINUOUS CONTINUOUS NOISE NOISE BAND CENTER FREQUENCIES, Hz BAND CENTER FREQUENCIES, Hz Alpha 12 Cooling Alpha 12 Heating NC-70...
  • Page 39 SOUND LEVEL CHARACTERISTICS Alpha 17 Cooling Alpha 17 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 Revision Y05-02 Service Manual - ALPHA...

  • Page 40: Electrical Data

    ELECTRICAL DATA ELECTRICAL DATA Single Phase Units MODEL Alpha 7 Alpha 9 To indoor To indoor Power Supply 1PH-230V-50Hz 1PH-230V-50Hz Max Current, A Circuit Breaker,A Power Supply Wiring No. X 3x1.0 mm 3x1.0 mm Cross Section mm Interconnecting Cable RC 5x1.0 mm...

  • Page 41: Wiring Diagrams

    WIRING DIAGRAMS WIRING DIAGRAMS Indoor Unit Alpha 7,9,12, 17 Service Manual - ALPHA Revision Y05-02...
  • Page 42 WIRING DIAGRAMS Outdoor Unit CON 7 Outdoor Unit CON 7 with easy connection kit Revision Y05-02 Service Manual - ALPHA...
  • Page 43 WIRING DIAGRAMS Outdoor Unit GCN 9, 12 REV: 03 Outdoor Unit GCN 9,12 with easy connection kit Service Manual - ALPHA Revision Y05-02...
  • Page 44 WIRING DIAGRAMS Outdoor Unit ONG3-17 with and without easy connection kit Revision Y05-02 Service Manual - ALPHA...

  • Page 45: Electrical Connections

    ELECTRICAL CONNECTIONS ELECTRICAL CONNECTIONS Alpha 7,9,12,17 Service Manual - ALPHA Revision Y05-02...

  • Page 46: Refrigeration Diagrams

    REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS 10.1 Heat Pump Models 10.1.1 Alpha 7, 9, 12, 17 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 47 REFRIGERATION DIAGRAMS 10.2 Cooling Only Models 10.2.1 Alpha 7, 9, 12, 17 OUTDOOR UNIT INDOOR UNIT Service port Sensor Flared Valves connection Capillary Indoor coil tube Strainer Outdoor coil 10-2 Revision Y05-02 Service Manual - ALPHA...

  • Page 48: Tubing Connections

    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 49: Control System

    CONTROL SYSTEM CONTROL SYSTEM ALPHA 7, 9, 12, 17 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 50 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 51 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 Y05-02 12-3...

  • Page 52: General Functions

    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 53 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 54 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 55 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 56 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 57 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 58 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 59 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 60 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 61 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 62 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 Y05-02 Service Manual - ALPHA 12-14...
  • Page 63 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 64 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 65: 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 66 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 67 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 68 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 69 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 70 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 71 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 72: 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 73: 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 74 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 75 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 76 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 77 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.
  • Page 78 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 79 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 80 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 81: 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 82 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 83: 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 Y05-02 14-1...
  • Page 84 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 A ir Filter 4523901 A ctive Carbon Filter (Optional) 4525990 Filter Support (Optional) 4527003 Printing Frame “Electra”for Isreal 4527004 Printing Frame “Fagor”...
  • Page 85 Grille B 4527503 Grille C 4527507 A ir Filter 4527359 A ctive 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...
  • Page 86 EXPLODED VIEWS AND SPARE PARTS LISTS 14.4 Indoor Unit Alpha 17 14-4 Revision Y05-02 Service Manual - ALPHA...
  • Page 87 Quantity 1 453080700 Grill A/ALPHA-17 2 453080800 Filter 3 4518113 Active Carbon Filter (Optional) 4 465720011 Front Frame Assy./ALPHA-17 electra for ISREAL 465720010 Front Frame Assy./ALPHA-17 electra for EURO. 453101700 Front Frame Assy./ALPHA-17 Johnson 5 453081000 Screw Cover 6 453102200 Evaporator Assy.
  • Page 88 EXPLODED VIEWS AND SPARE PARTS LISTS 14.6 Outdoor Unit CON 7 RC 14-6 Revision Y05-02 Service Manual - ALPHA...
  • Page 89 EXPLODED VIEWS AND SPARE PARTS LISTS 14.7 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 90 EXPLODED VIEWS AND SPARE PARTS LISTS 14.8 Outdoor Unit CON 7 ST 14-8 Revision Y05-02 Service Manual - ALPHA...
  • Page 91 EXPLODED VIEWS AND SPARE PARTS LISTS 14.9 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 92 EXPLODED VIEWS AND SPARE PARTS LISTS 14.10 Outdoor Unit CON 7 RC with easy connection kit 14-10 Revision Y05-02 Service Manual - ALPHA...
  • Page 93 EXPLODED VIEWS AND SPARE PARTS LISTS 14.11 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 94 EXPLODED VIEWS AND SPARE PARTS LISTS 14.12 Outdoor Unit CON 7 ST with easy connection kit 14-12 Revision Y05-02 Service Manual - ALPHA...
  • Page 95 EXPLODED VIEWS AND SPARE PARTS LISTS 14.13 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 96 EXPLODED VIEWS AND SPARE PARTS LISTS 14.14 Outdoor Unit GCN 9, 12 RC 14-14 Revision Y05-02 Service Manual - ALPHA...
  • Page 97 EXPLODED VIEWS AND SPARE PARTS LISTS 14.15 Outdoor Unit GCN 9 RC 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 98 EXPLODED VIEWS AND SPARE PARTS LISTS 14.16 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 99 EXPLODED VIEWS AND SPARE PARTS LISTS 14.17 Outdoor Unit GCN 9,12 ST Service Manual - ALPHA Revision Y05-02 14-17...
  • Page 100 EXPLODED VIEWS AND SPARE PARTS LISTS 14.18 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 101 EXPLODED VIEWS AND SPARE PARTS LISTS 14.19 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 102 EXPLODED VIEWS AND SPARE PARTS LISTS 14.20 Outdoor Unit GCN 9, 12 RC with easy connection kit 14-20 Revision Y05-02 Service Manual - ALPHA...
  • Page 103 EXPLODED VIEWS AND SPARE PARTS LISTS 14.21 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 104 EXPLODED VIEWS AND SPARE PARTS LISTS 14.22 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 105 EXPLODED VIEWS AND SPARE PARTS LISTS 14.23 Outdoor Unit GCN 9, 12 ST with easy connection kit Service Manual - ALPHA Revision Y05-02 14-23...
  • Page 106 EXPLODED VIEWS AND SPARE PARTS LISTS 14.24 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 107 EXPLODED VIEWS AND SPARE PARTS LISTS 14.25 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 108 EXPLODED VIEWS AND SPARE PARTS LISTS 14.26 Outdoor Unit ONG3 17 ST 14-26 Revision Y05-02 Service Manual - ALPHA...
  • Page 109 EXPLODED VIEWS AND SPARE PARTS LISTS 14.27 Outdoor Unit ONG3 17 ST Part No Description Quantity 433218 Front panel A 433221 Air Inlet Ring-420 433223 Painting Insulation Plate 4519251 4520171 Fan Motor 4527203 Motor support 464600001 Base Painting Assy. 4527202 Partition plate 455000506 Compressor Capa.30uF...
  • Page 110 EXPLODED VIEWS AND SPARE PARTS LISTS 14.28 Outdoor Unit ONG3 17 RC 14-28 Revision Y05-02 Service Manual - ALPHA...
  • Page 111 EXPLODED VIEWS AND SPARE PARTS LISTS 14.29 Outdoor Unit ONG3 17 RC Part No Description Quantity 433218 Front panel A 433221 Air Inlet Ring-420 433223 Painting Insulation Plate 4519251 4520171 Fan Motor 4527203 Motor support 464600001 Base Painting Assy. 4527202 Partition plate 455000506 Compressor Capa.30uF...
  • Page 112 EXPLODED VIEWS AND SPARE PARTS LISTS 14.30 Outdoor Unit ONG3 17 ST with easy connection kit 14-30 Revision Y05-02 Service Manual - ALPHA...
  • Page 113 EXPLODED VIEWS AND SPARE PARTS LISTS 14.31 Outdoor Unit ONG3 17 ST with easy connection kit Part No Description Quantity 433218 Front panel A 433221 Air Inlet Ring-420 433223 Painting Insulation Plate 4519251 4520171 Fan Motor 4527203 Motor support 464600001 Base Painting Assy.
  • Page 114 EXPLODED VIEWS AND SPARE PARTS LISTS 14.32 Outdoor Unit ONG3 17 RC with easy connection kit 14-32 Revision Y05-02 Service Manual - ALPHA...
  • Page 115 EXPLODED VIEWS AND SPARE PARTS LISTS 14.33 Outdoor Unit ONG3 17 RC with easy connection kit Part No Description Quantity 433218 Front panel A 433221 Air Inlet Ring-420 433223 Painting Insulation Plate 4519251 4520171 Fan Motor 4527203 Motor support 464600001 Base Painting Assy.

  • Page 116: Appendix A

    APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► INSTALLATION AND OPERATION MANUAL ALPHA 7, 9, 12, 17 Revision Y05-02 16-1 Service Manual - ALPHA...

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