Airwell K XLN24 RC Technical Manual
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Airwell K XLN24 RC Technical Manual

Airwell K XLN24 RC Technical Manual

Cassette r410a
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REFRIGERANT
TM K XLN A 0 GB
K XLN Cassette R410A
Indoor Units
K XLN24 RC
K XLN24 RC 3PH
K XLN30 RC
K XLN30 RC 3PH
R410A
Outdoor Units R410A
OU724 RC
OU724T RC
OU830 RC
OU830T RC
HEATPUMP
August 2005

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Summary of Contents for Airwell K XLN24 RC

  • Page 1 K XLN Cassette R410A Indoor Units Outdoor Units R410A K XLN24 RC OU724 RC K XLN24 RC 3PH OU724T RC K XLN30 RC OU830 RC K XLN30 RC 3PH OU830T RC REFRIGERANT HEATPUMP R410A TM K XLN A 0 GB...
  • 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...............5-1 ELECTRICAL DATA ................6-1 WIRING DIAGRAMS ................7-1 ELECTRICAL CONNECTIONS ............8-1 REFRIGERATION DIAGRAMS ............9-1 10. TUBING CONNECTIONS ..............10-1 11. CONTROL SYSTEM ................11-1 12. TROUBLESHOOTING ...............12-1 13.

  • Page 4: Introduction

    INTRODUCTION INTRODUCTION General The cassette (900X900) split celling mounted range comprise the RC (heat pump) models, as follows: • Heat Pump K XLN24RC, K XLN30RC, 1PH & 3PH units Main Features The (900X900) Cassette series benefits from the most advanced technological innovations, namely: •...

  • Page 5: Outdoor Unit

    INTRODUCTION Outdoor Unit It includes : • A Rotary Compressor mounted in a soundproofed compartment • Axial fan. • Outdoor coil with hydrophilic louver fins for RC units. • Outlet air fan grill. • Service valves” flare” type connection. • Interconnecting wiring terminal block.
  • Page 6 INTRODUCTION 1.10 Matching Table 1.10.1 R410A, OUTDOOR UNITS OUTDOOR UNITS MODEL REF’ KXLN24 KXLN30 WNG24 WNG30 SX24 SX30 DLS24 DLS30 OU724ST R410A OU724T ST R410A OU724 RC R410A OU724T RC R410A OU830 ST R410A OU830T ST R410A OU830 RC R410A OU830T RC R410A * - this conbination is out of the lego concept and cannot be matched with other types of indoor units.

  • Page 7: Product Data Sheet

    PRODUCT DATA SHEET PRODUCT DATA SHEET R410A Model Indoor Unit K XLN-24 Model Outdoor Unit OU7-24 Installation Method of Pipe Flared Characteristics Units Cooling Only Cooling Heating Btu/hr 23100 23100 24150 Capacity 6.77 6.77 7.08 Power input 2.25 2.25 2.33 EER (Cooling) or COP(Heating) 3.01 3.01...
  • Page 8 PRODUCT DATA SHEET Model Indoor Unit K XLN-24 Model Outdoor Unit OU7-24T Installation Method of Pipe Flared Characteristics Units Cooling Only Cooling Heating Btu/hr 23100 23100 24150 Capacity 6.77 6.77 7.08 Power input 2.25 2.25 2.33 EER (Cooling) or COP(Heating) 3.01 3.01 3.04...
  • Page 9 PRODUCT DATA SHEET Model Indoor Unit K XLN-30 Model Outdoor Unit OU830 Installation Method of Pipe Flared Characteristics Units Cooling Only Cooling Heating Btu/hr 28,300 28,300 30,500 Capacity 8.30 8.30 8.94 Power input 2.94 2.94 2.88 EER (Cooling) or COP(Heating) 2.82 2.82 3.10...
  • Page 10 PRODUCT DATA SHEET Model Indoor Unit K XLN-30 Model Outdoor Unit OU830T Installation Method of Pipe Flared Characteristics Units Cooling Only Cooling Heating Btu/hr 28,300 28,300 30,500 Capacity 8.30 8.30 8.94 Power input 2.86 2.86 2.79 EER (Cooling) or COP(Heating) 3.20 Energy efficiency class Power supply...

  • Page 11: Rating Conditions

    RATING CONDITIONS RATING CONDITIONS Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units). 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 Outdoor...

  • Page 12: Outline Dimensions

    OUTLINE DIMENSIONS OUTLINE DIMENSIONS K XLN 24, 30, Revision 0...
  • Page 13 OUTLINE DIMENSIONS Outdoor Unit : OU724 Outdoor Unit : OU830 Revision 0...

  • Page 14: Performance Data

    PERFORMANCE DATA PERFORMANCE DATA K XLN24 OU724 R410A 1PH/3PH 5.1.1 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 6.91...
  • Page 15 PERFORMANCE DATA 5.1.2 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) 4.09 1.86 3.93 1.99 3.78 6.34 4.40 1.91 4.24 2.02 4.09 6.46 4.67...

  • Page 16: Pressure Curves

    PERFORMANCE DATA Pressure Curves. 5.3.1 Cooling. Suction Pressure VS.Outdoor Temp 21/ 15(D B /W B ºC ) 24/ 17(D B /W B ºC ) 27/ 19(D B /W B ºC ) 29/ 21(D B /W B ºC ) 32/ 23(D B /W B ºC ) Outdoor Temp.(DB Discharge Pressure VS.Outdoor Temp 21/ 15( D B / W B ºC )
  • Page 17 PERFORMANCE DATA 5.3.2 Heating. Suction Pressure VS.Outdoor Temp 15 D B (ºC ) 20 D B (ºC ) 25 D B (ºC ) Outdoor Temp.( WB Discharge Pressure VS.Outdoor Temp 25 D B (ºC ) 20 D B (ºC ) 15 D B (ºC ) Outdoor Temp.( WB Revision 0...
  • Page 18 PERFORMANCE DATA K XLN30 OU830 R410A 5.4.1 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 8.47 8.96 9.38 9.79...
  • Page 19 PERFORMANCE DATA 5.4.2 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) 5.16 2.30 4.97 2.45 4.77 2.58 5.56 2.36 5.36 2.49 5.16 2.63 5.90...
  • Page 20 PERFORMANCE DATA K XLN30 OU830T R410A 5.5.1 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 8.47 8.96 9.38 9.79...
  • Page 21 PERFORMANCE DATA 5.5.2 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) 5.16 2.23 4.97 2.38 4.77 2.50 5.56 2.29 5.36 2.41 5.16 2.54 5.90...
  • Page 22 PERFORMANCE DATA Pressure Curves. 5.7.1 K XLN30 OU830 R410A - Cooling: Suction Pressure VS.Outdoor Temp 10.0 21/15(D B /W B ºC ) 24/17(D B /W B ºC ) 27/19(D B /W B ºC ) 29/21(D B /W B ºC ) 32/23(D B /W B ºC ) Outdoor Temp.(DB Discharge Pressure VS.Outdoor Temp...
  • Page 23 PERFORMANCE DATA 5.7.2 Heating. Suction Pressure VS.Outdoor Temp 11.0 10.0 15 D B ( ºC ) 20 D B ( ºC ) 25 D B ( ºC ) Outdoor Temp.( WB Discharge Pressure VS.Outdoor Temp 25 D B ( ºC ) 20 D B ( ºC ) 15 D B ( ºC ) Outdoor Temp.( WB...
  • Page 24 PERFORMANCE DATA Pressure Curves. 5.8.1 K XLN30 OU830T R410A - Cooling: Suction Pressure VS.Outdoor Temp 11.0 21/15(D B /W B ºC ) 10.5 24/17(D B /W B ºC ) 10.0 27/19(D B /W B ºC ) 29/21(D B /W B ºC ) 32/23(D B /W B ºC ) Outdoor Temp.(DB Discharge Pressure VS.Outdoor Temp...
  • Page 25 PERFORMANCE DATA 5.8.2 Heating. Suction Pressure VS.Outdoor Temp 11.0 10.0 15 D B ( ºC ) 20 D B ( ºC ) 25 D B ( ºC ) Outdoor Temp.( WB Discharge Pressure VS.Outdoor Temp 25 D B ( ºC ) 20 D B ( ºC ) 15 D B ( ºC ) Outdoor Temp.( WB...

  • Page 26: Electrical Data

    ELECTRICAL DATA ELECTRICAL DATA Single Phase Units MODEL K XLN 24 K XLN24 K XLN 30 To Outdoor To Indoor(option) To Outdoor Power Supply 1PH – 230V – 50 Hz 1PH – 230V – 50 Hz 1PH – 230V – 50 Hz Max Current, A Circuit Breaker Power Supply Wiring No.

  • Page 27: Wiring Diagrams

    WIRING DIAGRAMS WIRING DIAGRAMS Indoor Unit : K XLN 24 (Power Supply to Indoor) LE G E N D : BK- BLAC K FUSE B U - B LU E Water switch DISPLAY B N - B R O W N PLUG FUSE BOARD...
  • Page 28 WIRING DIAGRAMS Indoor Unit : K XLN24/30 three phase LEG EN D : BK- BLAC K BU - BLU E FUSE CN401 CN401A Water switch DISPLAY BN - BR O W N CN402 CN402A FUSE BOARD O G - O R AN G E CN403 CN403A CN405...
  • Page 29 WIRING DIAGRAMS Outdoor Unit ; OU724 / OU830 3PH Revision 0...

  • Page 30: Electrical Connections

    ELECTRICAL CONNECTIONS ELECTRICAL CONNECTIONS K XLN 24 (Power Supply to Indoor) K XLN 24/30 (Power Supply to Outdoor) Revision 0...
  • Page 31 ELECTRICAL CONNECTIONS K XLN 24/30 3PH Revision 0...

  • Page 32: Refrigeration Diagrams

    REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS Heat Pump Models 9.1.1 K XLN 24 R410A Revision 0...
  • Page 33 REFRIGERATION DIAGRAMS 9.1.2 K XLN 30 R410A Revision 0...
  • Page 34 REFRIGERATION DIAGRAMS Cooling Only Models 9.2.1 K XLN 24, 30, Revision 0...

  • Page 35: Tubing Connections

    TUBING CONNECTIONS TUBING CONNECTIONS TUBE (Inch) ¼” ” ½” ” 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 36: Control System

    CONTROL SYSTEM CONTROL SYSTEM 11.1 Electronic Control 11.1.1 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. • SH group -Cooling and heating by heat pump and supplementary heater.
  • Page 37 CONTROL SYSTEM 11.1.3 Main PCB Controller 11-2 Revision 0...
  • Page 38 CONTROL SYSTEM 11.1.4 Display Board PCB Legend Name Plate Cooling LED Heating LED Push Button (Mode) Timer LED STBY LED Operation LED IR Receiver Buzzer 10. Display Port Connection Revision 0 11-3...
  • Page 39 CONTROL SYSTEM 11.2 Control Function 11.2.1 Abbreviations - Alternate Current - Air-Conditioner - ON or OFF status CLOCK - ON/OFF Operation Input, (dry contact) COMP - Compressor - Central Processing Unit - Compensation Temperature Value - Heating Element - High Pressure Control - Hardware - Indoor Condensation Pump - Indoor Coil Temperature (RT2) sensor...

  • Page 40: General Functions

    CONTROL SYSTEM 11.3 General Functions 11.3.1 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: Operation Mode Min Operation Time of COMP Heat, Cool, HP protection or Auto Modes...
  • Page 41 CONTROL SYSTEM 11.3.5 Protections High pressure protection is applicable to all operating modes. Deicing control is valid in Heat and Auto Heat Modes only. Defrosting control is valid in Dry, Cool, and Auto Cool Modes. 11.3.6 Thermistors Operation Return air Temp. is detected by RAT in normal Mode, or by RCT (R/C sensor) in I-FEEL Mode.
  • Page 42 CONTROL SYSTEM 11.3.7 RV Fault This test is applied only in compressor units where 4.7kΩ resistor is not connected to the OCT. The test is performed every time the unit is switched from OFF/STBY to OPER in Heat mode or changes operation mode from COOL/DRY to HEAT or (this applies also in AUTO COOL/HEAT mode).

  • Page 43: Cooling Mode

    CONTROL SYSTEM 11.4 Cooling Mode 11.4.1 Cooling Mode – General Mode Definition Mode: COOL, AUTO (at Cooling) Temp: Selected desired temperature. Fan: HIGH, MED, LOW, AUTO. Timer: Any I-FEEL: ON or OFF Room Temperature, RT, is detected by: • RAT in normal operation, or •...
  • Page 44 CONTROL SYSTEM 11.4.3 Sequence Diagrams Maintaining room temp at desired level by comparing RT and SPT with user defined IFAN speed. (RT - SPT) [ COMP (WVL) OFAN USER FAN SPEED IFAN Revision 0 11-9...
  • Page 45 CONTROL SYSTEM Maintaining room temp at desired level by comparing RT and SPT with AUTO-IFAN. (RT - SPT) [ COMP (WVL) OFAN IFAN 11-10 Revision 0...

  • Page 46: Heating Mode

    CONTROL SYSTEM 11.5 Heating Mode 11.5.1 Heating Mode - General Compensation Procedure When I-FEEL is OFF during HEAT mode: RT= RAT – CTV. When I-FEEL is ON during HEAT mode: RT= RCT. Type of Indoor Wall Mounted Mobiles / Floor Ceiling Square /Window Ducted Cassettes...
  • Page 47 CONTROL SYSTEM IFAN operation rules for RH group 1) In RH group, IFAN starts when HE starts. When HE switches to OFF, IFAN switches to LOW for 30 sec and then stops. Heaters operation rules for RC and SH groups: 1) For both RC and SH groups, Heaters versus T is as follows: T=SP-RT [ 2) Operation rules for Heaters in RC group:...
  • Page 48 CONTROL SYSTEM Heaters operation rules for RH groups: 1) In RH group, HE operation is according to the difference between RAT and SPT. H E 2 O FF O FF T=SP-RT [ OFAN Operation for RC and SH groups 1) As a general rule for RC and SH groups, excluding protection modes, OFAN starts with the compressor.
  • Page 49 CONTROL SYSTEM 11.6 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 11.6.1 Sequence Diagram Maintains room temp. at desired level by comparing RAT or RCT to SPT. (RT - SPT) [ COMP (WVL)
  • Page 50 CONTROL SYSTEM 11.7 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 11.7.1 Sequence Diagram Maintains room temp at desired level by controlling COMP, IFAN and OFAN. (RT - SPT) [ COMP (WVL)
  • Page 51 CONTROL SYSTEM 11.8 Heating, RH Group Mode: HEAT, AUTO (at Heating) Temp: Selected desired temperature Fan: HIGH, MED, LOW Timer: Any I-FEEL: ON or OFF 11.8.1 Sequence Diagram Maintains room temp at desired level by controlling Heating Elements: HE1 or HE2. (RT - SPT) in H/M/L IFAN...
  • Page 52 CONTROL SYSTEM 11.9 Heating, RH Group, with AUTOFAN Mode: HEAT, AUTO (at Heating) Temp: Selected desired temperature Fan: AUTO Timer: Any I-FEEL: ON or OFF 11.9.1 Sequence Diagram Maintains room temp. at desired level by controlling the 2-Stage Electric Heaters. (RT - SPT) in IFAN 30 sec...
  • Page 53 CONTROL SYSTEM 11.10 Automatic Cooling or Heating 11.10.1 Automatic Cooling or Heating - General The AUTO Mode is for models with compressor and the WVL-RH only. The WVL-ST, RC and SH units do not work in AUTO Mode. Mode Definition Mode: AUTO Temp: Selected desired temperature...
  • Page 54 CONTROL SYSTEM 11.10.2 Sequence Diagrams Auto Cooling or Heating, RC or SH Groups Maintains room temp. at desired level by selecting between cooling and heating modes. (RT - SPT) [ Auto Heat Mode Auto Cool Mode Auto Heat Mode > 4 min >...

  • Page 55: Dry Mode

    CONTROL SYSTEM Auto Cooling or Heating RH Group Maintains room temp. at desired level by selecting between Cooling or Heating Modes. (RT - SPT) [ Auto Heat Mode Auto Cool Mode Auto Heat Mode COMP & OFAN > 3 min >...
  • Page 56 CONTROL SYSTEM (RT - SPT) [ Time [min] DRY-ON DRY-OFF IFAN 5 minutes COMP ON time COMP & OFAN 6 min Max 15 minutes Max 15 minutes Note 2 Note1 & HE2 NOTES 1. When DRY is ON, the COMP is forced OFF for 3.5 min (longer than the 3 min Min COMP- OFF time) after every 15 min of continuous COMP operation.
  • Page 57 CONTROL SYSTEM 11.11.2 DRY, SH or RH group Mode: Temp: Selected desired temperature Fan: LOW (automatically selected by software) Timer: Any I-FEEL: Any Control function Reduces room humidity with minimum temp. fluctuations by operating in Cool Mode with LOW speed IFAN and HE. (RT - SPT) [ Time [min] IFAN...
  • Page 58 CONTROL SYSTEM 11.12 Protection 11.12.1 Cooling Mode Protections Indoor Coil Defrost Mode: COOLING, DRY, AUTO Temp: Selected desired temp. Fan: Timer: I-FEEL: ON or OFF Control Function Protects the indoor coil from ice formation at low ambient temperatures. ICT [ OFAN COMP IFAN...
  • Page 59 CONTROL SYSTEM High Pressure Protection Mode: (AUTO) COOLING or DRY Temp: Selected desired temperature Fan: Timer: Any I-FEEL: ON or OFF Control Function To protect the COMP from the high pressure build-up in the outdoor coil during normal cooling operation, by switching OFF the IFAN and COMP. OCT [ For all models except WAX &...
  • Page 60 CONTROL SYSTEM 11.12.2 Condensation Pump. Mode: Cool, Dry, Auto Temp: Selected desired temperature Fan: Timer: Any I FEEL: Control function: Prevent Condensed water from Overflowing. Overflow when Overflow when unit is ON unit is OFF Overflow Water Level Normal OPER BLINK COMP/WVL is COMP...
  • Page 61 CONTROL SYSTEM 11.12.3 Heating Mode Protections Outdoor Coil Deicing (excluding RH Group) Mode: HEATING, AUTO (at heating) Temp: Selected desired temperature Fan: Timer: Any I-FEEL: Any Control function To protect the outdoor coil from ice formation by controlling COMP & RV operation. 1) Deicer Activation Algorithm a) Static deicer threshold is -5°C b) Dynamic deicer threshold changes of 3°C in 3 minutes in the OCT...
  • Page 62 CONTROL SYSTEM 2) 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 Note 3 IFAN HEs are forced OFF OPER BLINK NOTES...
  • Page 63 CONTROL SYSTEM High Pressure Protection (excluding RH Group) Mode: (AUTO) HEATING Fan: Timer: Any I-FEEL: ON or OFF Control Function Protects the compressor from high pressure by switching OFF the OFAN and COMP. ICT [ For all models except WAX For WAX model COMP is forced OFF COMP...
  • Page 64 CONTROL SYSTEM 11.13 Forced Operation (Excluding PRX & PXD Models) Forced operation allows units to start, stop and operate in cooling or heating in preset temp. according to the following table: Forced Pre-set Temp for : Pre-set Temp for : Operation Mode MBX, P2000, PX Models FCD, RWK ,ELD, ECC, WAX, WNX, WMN Models...
  • Page 65 CONTROL SYSTEM 11.14 SPT Adjustment in Sleep Mode • In COOL, AUTO COOL or DRY modes, the SPT adjustment is positive (from 0 to +3 • In HEAT or AUTO HEAT modes, the SPT adjustment is negative (from 0 to -3 •...
  • Page 66 CONTROL SYSTEM 11.14.1 Time Adjustment in SLEEP Mode In 10V4, 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 67 CONTROL SYSTEM 11.15 Controller Self-Test Procedure 11.15.1 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 68 CONTROL SYSTEM 11.15.2 By Remote Control Settings: STEP 1: TURNING ON THE POWER. Turn ON the power, make sure that the unit is in operation. STEP 2 : ENABLE SELF-TEST MODE 1) 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 69 CONTROL SYSTEM STEP 3: AUTO LED WALK TEST. 1) All the LEDS will turn OFF. 2) All the LEDS will turn ON for 1 second one by one in the following sequence: STAND-BY ð OPERATE ð TIMER ð FILTER ð COOL ð HEAT. 3) In PRX all the LEDS will turn ON for 1 second one by one in the following sequence : 18 °c ð...
  • Page 70 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 8: MEMORY TEST (EEPROM) The test purpose is to check if the memory is functioning correctly.
  • Page 71 CONTROL SYSTEM 11.16 System Diagnostics Pressing Mode button for 5-10 seconds in SB or any other operation mode will activate the DIAGNOSTICS mode, acK XLNowledged by 3 short beeps and lighting of COOL and HEAT LEDs. In DIAGNOSTICS mode, system failures will be indicated by the blinking of HEAT & COOL LEDs.

  • Page 72: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION Power supply indicator Check power supply. If power No power supply. (Red LED) does not light supply is OK, check display and display wiring, if OK, replace PCB. Unit does not respond to Remote control Check remote control remote control command.
  • Page 73 TROUBLESHOOTING SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION One of the protections is Control problem or Perform diagnostics to detect activated and compressor refrigeration system active protection, and take is stopped with no problem. action accordingly. apparent reason. Compressor motor is noisy Wrong phase order to Check compressor phase and no suction is present.

  • Page 74: Exploded Views And Spare Part Lists

    EXPLODED VIEWS AND SPARE PARTS LIST EXPLODED VIEWS AND SPARE PART LISTS 13.1 Exploded view of Indoor unit: K XLN24,30 Revision 0 13-1...
  • Page 75 EXPLODED VIEWS AND SPARE PARTS LIST 13-2 Revision 0...
  • Page 76 EXPLODED VIEWS AND SPARE PARTS LIST 13.2 Spare part list of Intdoor Unit: K XLN Spare Part List of K XLN24/30 CODE Part Name Quantity Capacity 4518042 PCB Ass'y 4523482 Transformer 4523162 E-Parts Box Cover1 2114200004 E-Parts Box Cover2 2114200005 E-Parts Box Ass'y 2114200008 Room Temperature Sensor Ass'y...
  • Page 77 Control box 2114200011 LED holder 2114200007 Display PCB 4523483 Cover, control box 2114200022 452997004 Front Panel Airwell Back board, Air out 1 2114200016 Back board, Air out 2 2114200017 Back board, Air out 3 2114200018 Back board, Air out 4 2114200019...
  • Page 78 EXPLODED VIEWS AND SPARE PARTS LIST 13.3 Exploded view of outdoor unit: ONG Revision 0 13-5...
  • Page 79 EXPLODED VIEWS AND SPARE PARTS LIST 13-6 Revision 0...
  • Page 80 EXPLODED VIEWS AND SPARE PARTS LIST 13.4 Spare part list of Outtdoor Unit: Spare Part list for GC24ST R410A Part Item Description Quantity Number 4517144 FAN COVER PP+UV 452795700 PAINTED LEFT CABINET ASSY 452881901 Base plate paint assy. 4516786 PAINTED RIGHT CABINET ASSY 4516985 Partition Plate 455000301...
  • Page 81 EXPLODED VIEWS AND SPARE PARTS LIST Spare Part list for GC24RC R410A Part Item Description Quantity Number 4517144 FAN COVER PP+UV 452795700 PAINTED LEFT CABINET ASSY 452881901 Base plate paint assy. 4516786 PAINTED RIGHT CABINET ASSY 4516985 Partition Plate 455000301 Compressor Capacitor 55uF (CBB65) 455000104 Capacitor for fan motor 4uF (CBB61S)
  • Page 82 78284 GUYANCOURT Cedex Tél. 33 1 39 44 78 00 Fax 33 1 39 44 11 55 www.airwell.com With a concern for a constant improvement, our products can be modified without notice. Photos non contractual. 1 bis,Avenue du 8 Mai 1945...

This manual is also suitable for:

K xln30 rcOu724 rcOu830 rcOu724t rcOu830t rcK xln30 rc 3ph

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