Acson RCM 20 D User Manual
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Acson RCM 20 D User Manual

Ceiling exposed split systems
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Models:
RCM 20 D/DR
RCM 25 D/DR
RCM 30 D/DR
RCM 40 D/DR
RCM 50 D/DR
RCM 61 C/CR
RCM 62 C/CR
Ceiling Exposed
Split Systems
REGISTERED
RCM-2004
ISO 9002

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Summary of Contents for Acson RCM 20 D

  • Page 1 Models: RCM 20 D/DR RCM 25 D/DR RCM 30 D/DR RCM 40 D/DR RCM 50 D/DR RCM 61 C/CR RCM 62 C/CR Ceiling Exposed Split Systems REGISTERED RCM-2004 ISO 9002...

  • Page 2: Table Of Contents

    CONTENTS 1. SPECIAL FEATURES ....................2 2. SPECIFICATIONS ....................... 3 3. NOISE LEVEL ......................15 4. OPERATION RANGE ....................19 5. REFRIGERANT CIRCUIT ..................20 6. PERFORMANCE TABLE ................... 24 7 OUTLINES AND DIMENSIONS.................. 37 8. WIRING DIAGRAMS ....................41 9.

  • Page 3: Special Features

    1. SPECIAL FEATURES ULTRA SLIM NEW STYLISH DESIGN PROFILE This unit is contemporary in design and match even the most up to date interior decor. The slim, round profile and compact design of this unit adds a touch of elegance to every decor. No indoor connection pipe and hanger bracket are visible.

  • Page 4: Specifications

    2. SPECIFICATIONS COOLING ONLY (R22) RCM 30D RCM 40D MODEL INDOOR UNIT RCM 20D RCM 25D RCM 50D OUTDOOR UNIT ALC 20B ALC 25B ALC 30B ALC 30C ALC 35C ALC 40C ALC 50C NOMINAL kcal/h 5040 6300 7056 7560 8820 10080 12600...
  • Page 5 HEAT PUMP (R22) MODEL INDOOR UNIT RCM 20DR RCM 25DR RCM 30DR RCM 40DR RCM 50DR OUTDOOR UNIT ALC 20BR ALC 25BR ALC 30BR ALC 30CR ALC 35CR ALC 40CR ALC 50CR NOMINAL kcal/h 5040 6048 6552 7560 8820 10080 12096 COOLING 5862...
  • Page 6 COOLING ONLY (R22) MODEL INDOOR UNIT RCM 61C OUTDOOR UNIT ALC 61C NOMINAL kcal/h 14110 COOLING 16410 CAPACITY Btu/h 56000 NOMINAL TOTAL POWER 5593 NOMINAL TOTAL CURRENT 220 - 240 / 1 / 50 POWER SOURCE V/Ph/Hz REFRIGERANT / CONTROL R22 / CAPILLARY TUBE IN INDOOR AIR FLOW cfm / L/s...
  • Page 7 COOLING ONLY (R22) MODEL INDOOR UNIT RCM 62C OUTDOOR UNIT ALC 61C NOMINAL kcal/h 14110 COOLING 16410 CAPACITY Btu/h 56000 NOMINAL TOTAL POWER 6195 NOMINAL TOTAL CURRENT 30.6 POWER SOURCE V/Ph/Hz 230 / 1 / 60 REFRIGERANT / CONTROL R22 / CAPILLARY TUBE IN INDOOR AIR FLOW cfm / L/s 1550 / 732...
  • Page 8 HEAT PUMP (R22) MODEL INDOOR UNIT RCM 61CR OUTDOOR UNIT ALC 61CR NOMINAL kcal/h 14110 COOLING 16410 CAPACITY Btu/h 56000 NOMINAL kcal/h 14110 HEATING 16410 CAPACITY Btu/h 56000 NOMINAL TOTAL POWER (COOLING) 5593 NOMINAL TOTAL POWER (HEATING) 4551 NOMINAL TOTAL CURRENT (COOLING) NOMINAL TOTAL CURRENT (HEATING) POWER SOURCE V/Ph/Hz...
  • Page 9 HEAT PUMP (R22) MODEL INDOOR UNIT RCM 62CR OUTDOOR UNIT ALC 61CR NOMINAL kcal/h 14110 COOLING 16410 56000 CAPACITY Btu/h NOMINAL kcal/h 14110 HEATING 16410 CAPACITY Btu/h 56000 NOMINAL TOTAL POWER (COOLING) 6195 NOMINAL TOTAL POWER (HEATING) 5265 NOMINAL TOTAL CURRENT (COOLING) 30.6 NOMINAL TOTAL CURRENT (HEATING) 26.0...
  • Page 10 COOLING ONLY (R407C) MODEL INDOOR UNIT RCM 20D RCM 25D RCM 30D RCM 40D RCM 50D OUTDOOR UNIT A4LC 20B A4LC 25B A4LC 30C A4LC 40C A4LC 50C NOMINAL kcal/h 4612 5292 7560 9576 12600 COOLING 5363 6155 8792 11134 14654 CAPACITY Btu/h...
  • Page 11 HEAT PUMP (R407C) MODEL INDOOR UNIT RCM 20DR RCM 25DR RCM 30DR RCM 40DR RCM 50DR OUTDOOR UNIT A4LC 20BR A4LC 25BR A4LC 30CR A4LC 40CR A4LC 50CR NOMINAL kcal/h 4536 5170 7310 9830 12100 COOLING 5274 6008 8499 11430 14068 CAPACITY Btu/h...
  • Page 12 COOLING ONLY (R407C) RCM 61C MODEL INDOOR UNIT OUTDOOR UNIT A4LC 60C A4LC 61C 13860 13610 NOMINAL kcal/h COOLING 16120 15830 CAPACITY Btu/h 55000 54000 NOMINAL TOTAL POWER 6027 5645 NOMINAL TOTAL CURRENT 10.2 POWER SOURCE V/Ph/Hz 220 - 240 / 1 / 50 REFRIGERANT / CONTROL R407C / CAPILLARY TUBE IN INDOOR 1550 / 732...
  • Page 13 COOLING ONLY (R407C) RCM 62C MODEL INDOOR UNIT OUTDOOR UNIT A4LC 60C A4LC 61C NOMINAL kcal/h 13860 13610 COOLING 16120 15830 CAPACITY Btu/h 55000 54000 NOMINAL TOTAL POWER 6027 5645 NOMINAL TOTAL CURRENT 10.2 POWER SOURCE V/Ph/Hz 220 - 240 / 1 / 50 R407C / CAPILLARY TUBE IN INDOOR REFRIGERANT / CONTROL 1550 / 732...
  • Page 14 HEAT PUMP (R407C) MODEL INDOOR UNIT RCM 61CR OUTDOOR UNIT A4LC 61CR NOMINAL kcal/h 14110 HEATING 16410 56000 CAPACITY Btu/h NOMINAL kcal/h 13610 COOLING 15830 CAPACITY Btu/h 54000 NOMINAL TOTAL POWER (COOLING) 5645 NOMINAL TOTAL POWER (HEATING) 5145 NOMINAL TOTAL CURRENT (COOLING) NOMINAL TOTAL CURRENT (HEATING) POWER SOURCE V/Ph/Hz...
  • Page 15 HEAT PUMP (R407C) MODEL INDOOR UNIT RCM 62CR OUTDOOR UNIT A4LC 61CR NOMINAL kcal/h 14110 HEATING 16410 56000 CAPACITY Btu/h NOMINAL kcal/h 13610 COOLING 15830 CAPACITY Btu/h 54000 NOMINAL TOTAL POWER (COOLING) 5645 NOMINAL TOTAL POWER (HEATING) 5145 NOMINAL TOTAL CURRENT (COOLING) NOMINAL TOTAL CURRENT (HEATING) POWER SOURCE V/Ph/Hz...

  • Page 16: Noise Level

    3. NOISE LEVEL Model Speed Overall Noise 1/1 Octave Sound pressure level (dB, ref 20µPa) A (dBA) Criteria 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz High RCM 20D/DR Medium High RCM 25D/DR Medium High RCM 30D/DR Medium High RCM 40D/DR Medium High RCM 50D/DR...
  • Page 17 RCM20D/DR NC Curves NC-50 NC-45 High f an NC-40 NC-35 M edium fan NC-30 Low fan NC-25 NC-20 1000 2000 4000 8000 Octave-band frequency (Hz) M easured in anecho ic ro o m at 1m in fro nt o f the unit and 0.8m belo w the air discharge o pening RCM25D/DR NC Curves NC-50 High fan...
  • Page 18 RCM30D/DR NC Curves N C -5 0 N C -4 5 Hig h f an N C -4 0 M ed ium f an N C -3 5 Lo w f an N C -3 0 N C -2 5 N C -2 0 1000 2000...
  • Page 19 RCM50D/DR NC Curves N C -5 0 Hig h f an N C -4 5 M ed ium f an N C -4 0 Lo w f an N C -3 5 N C -3 0 N C -2 5 N C -2 0 1000 2000...

  • Page 20: Operating Range

    4. OPERATING RANGE Ensure the operating temperature is in allowable range. Cooling only Cooling Caution : HIGH AMBIENT UNIT The use of your air conditioner outside the range of working temperature and humidity can result in serious failure. LOW AMBIENT Indoor temp.

  • Page 21: Refrigerant Circuit

    5. REFRIGERANT CIRCUIT 5. REFRIGERANT CIRCUIT MODEL : RCM20D – ALC/A4LC20B MODEL : RCM25D – ALC/A4LC25B RCM30D – ALC30B...
  • Page 22 MODEL : RCM30D – ALC/A4LC30C RCM40D – ALC35C RCM40D – ALC/A4LC40C RCM50D – ALC/A4LC50C MODEL : RCM61/62C – ALC61C, A4LC60C/61C...
  • Page 23 MODEL : RCM20DR – ALC/A4LC20BR MODEL : RCM25DR – ALC/A4LC25BR RCM30DR – ALC30BR...
  • Page 24 MODEL : RCM30DR – ALC/A4LC30CR RCM40DR – ALC35CR RCM40DR – ALC/A4LC40CR RCM50DR – ALC/A4LC50CR NOTE : A4LC30CR WITH TXV ONLY MODEL : RCM61/62CR – ALC61C/A4LC60CR...

  • Page 25: Performance Table

    5. PERFORMANCE TABLE 5. PERFORMANCE TABLE 6. PERFORMANCE TABLE COOLING ONLY (R22) MODEL : RCM 20D / ALC 20B Indoor Indoor Capacity Outdoor DB, °C °C °C 19.4 26.7 13.9 5.144 4.937 4.752 4.568 4.134 3.834 3.689 3.633 3.588 5.056 4.868 4.700 4.532...
  • Page 26 MODEL : RCM 30D / ALC 30C Indoor Indoor Capacit Outdoor DB, °C °C °C 19.4 26.7 13.9 7.784 7.460 7.170 6.880 6.550 6.206 5.938 5.792 5.639 7.088 6.910 6.751 6.592 6.276 5.946 5.689 5.550 5.403 8.383 7.981 7.622 7.263 6.914 6.551 6.268...
  • Page 27 MODEL : RCM 50D / ALC 50C Indoor Indoor Capacit Outdoor DB, °C °C °C 19.4 26.7 13.9 12.749 12.256 11.815 11.374 10.717 10.114 9.762 9.601 9.451 11.176 11.014 10.869 10.724 10.104 9.535 9.204 9.052 8.910 14.011 13.300 12.665 12.030 11.335 10.697 10.325...
  • Page 28 COOLING ONLY (R407C) MODEL : RCM 20D / A4LC 20B Indoor Indoor Capacit Outdoor DB, °C °C °C 19.4 26.7 13.9 4.706 4.517 4.348 4.180 3.783 3.508 3.376 3.324 3.283 4.627 4.454 4.300 4.147 3.753 3.481 3.349 3.298 3.257 5.078 4.841 4.628 4.416...
  • Page 29 MODEL : RCM 40D / A4LC 40C Indoor Indoor Capacity Outdoor DB, °C °C °C 19.4 26.7 13.9 9.586 9.233 8.917 8.602 7.877 7.150 6.878 6.807 6.777 9.188 8.918 8.677 8.437 7.726 7.013 6.746 6.676 6.648 10.505 10.004 9.556 9.109 8.341 7.571 7.284...
  • Page 30 HEAT PUMP MODEL – R22 MODEL : RCM 20DR / ALC 20BR (COOLING MODE) Indoor Indoor Capacity Outdoor DB, °C °C °C 19.4 26.7 13.9 5.106 4.907 4.729 4.552 4.120 3.821 3.677 3.621 3.576 4.748 4.625 4.514 4.404 3.986 3.697 3.557 3.503 3.460...
  • Page 31 MODEL : RCM 40DR / ALC 40CR (COOLING MODE) Indoor Indoor Capacit Outdoor DB, °C °C °C 19.4 26.7 13.9 9.748 9.448 9.180 8.913 8.162 7.408 7.127 7.0529 7.022 9.649 9.370 9.121 8.872 8.124 7.374 7.094 7.0204 6.990 10.889 10.381 9.928 9.475 8.676...
  • Page 32 HEATING MODE – R22 MODEL : RCM 20DR / ALC 20BR (HEATING MODE) Indoor DB°C Outdoor WB°C 15.0 17.0 19.0 21.0 24.0 26.7 -9.0 3.552 3.561 3.570 3.579 3.466 3.366 3.552 3.561 3.570 3.579 3.466 3.366 -5.0 3.858 3.823 3.789 3.754 3.702 3.655...
  • Page 33 MODEL : RCM 40DR / ALC 40CR (HEATING MODE) Indoor DB°C Outdoor WB°C 15.0 17.0 19.0 21.0 24.0 26.7 -9.0 6.456 6.337 6.218 6.099 6.108 6.117 6.456 6.337 6.218 6.099 6.108 6.117 -5.0 7.779 7.709 7.640 7.570 7.465 7.371 7.779 7.709 7.640 7.570...
  • Page 34 HEATPUMP MODEL – R407C MODEL : RCM 20DR / A4LC 20BR (COOLING MODE) Indoor Indoor Capacity Outdoor DB, °C °C °C 19.4 26.7 13.9 4.595 4.416 4.256 4.097 3.708 3.439 3.309 2.369 3.218 4.273 4.162 4.063 3.964 3.588 3.327 3.201 2.291 3.114 5.040...
  • Page 35 HEATPUMP MODEL – R407C MODEL : RCM 40DR / A4LC 40CR (COOLING MODE) Indoor Indoor Capacity Outdoor DB, °C °C °C 19.4 26.7 13.9 9.504 9.212 8.951 8.690 7.958 7.223 6.949 5.361 6.847 9.408 9.136 8.893 8.650 7.921 7.190 6.917 5.337 6.815 10.616...
  • Page 36 HEATING MODE – R407C MODEL : RCM 20DR / A4LC 20BR (HEATING MODE) Indoor DB°C Outdoor WB°C 15.0 17.0 19.0 21.0 24.0 26.7 -9.0 3.214 3.222 3.230 3.238 3.136 3.045 3.214 3.222 3.230 3.238 3.136 3.045 -5.0 3.490 3.459 3.428 3.396 3.349 3.307...
  • Page 37 MODEL : RCM 40DR / A4LC 40CR (HEATING MODE) Indoor DB°C Outdoor WB°C 15.0 17.0 19.0 21.0 24.0 26.7 -9.0 6.456 6.337 6.218 6.099 6.108 6.116 6.456 6.337 6.218 6.099 6.108 6.116 -5.0 7.779 7.709 7.639 7.570 7.465 7.371 7.779 7.709 7.639 7.570...

  • Page 38: Outlines And Dimensions

    7. OUTLINES AND DIMENSIONS INDOOR UNIT MODEL: RCM - D SERIES (COOLING ONLY AND HEAT PUMP) MODEL RCM 20D/DR RCM 25D/DR RCM 30D/DR RCM 40D/DR RCM 50D/DR 1174 1174 1174 1674 1674 1082 1082 1082 1582 1582 1214 1214 1214 1714 1714 1379...
  • Page 39 MODEL : RCM 61C/CR MODEL : RCM 62C/CR A(GRILL) 1750 1930 1830 1880...
  • Page 40 OUTDOOR UNIT MODEL : ALC 20/ 25 B/BR, A4LC 20/ 25 B/BR, ALC 30B/BR Note : Dimension in mm MODEL : ALC 30/ 35/ 40/ 50 C/CR, A4LC 30/ 40/ 50 C/CR, A4LC 60C Caution Sharp edges and coil surfaces are potential locations which may cause injury hazards. Avoid from being in contact with these places.
  • Page 41 MODEL : ALC / A4LC 61 C/CR...

  • Page 42: Wiring Diagrams

    8. WIRING DIAGRAMS COOLING ONLY INDOOR UNIT MODEL : RCM20/25D OUTDOOR UNIT MODEL : ALC/A4LC 20/25B...
  • Page 43 INDOOR UNIT MODEL : RCM30D OUTDOOR UNIT MODEL : ALC 30B...
  • Page 44 INDOOR UNIT MODEL : RCM30D OUTDOOR UNIT MODEL : ALC/A4LC 30C...
  • Page 45 INDOOR UNIT MODEL : RCM40D OUTDOOR UNIT MODEL : ALC 35C...
  • Page 46 INDOOR UNIT MODEL : RCM40/ 50D OUTDOOR UNIT MODEL : ALC/A4LC 40/ 50C...
  • Page 47 INDOOR UNIT MODEL : RCM61/62C OUTDOOR UNIT MODEL : A4LC60C...
  • Page 48 INDOOR UNIT MODEL : RCM61/62C OUTDOOR UNIT MODEL: ALC/A4LC 61C...
  • Page 49 HEAT PUMP INDOOR UNIT MODEL : RCM 20/25DR OUTDOOR UNIT MODEL: ALC/A4LC 20/25BR...
  • Page 50 INDOOR UNIT MODEL : RCM 30DR OUTDOOR UNIT MODEL: ALC 30BR...
  • Page 51 INDOOR UNIT MODEL : RCM 30DR OUTDOOR UNIT MODEL: ALC/A4LC 30CR...
  • Page 52 INDOOR UNIT MODEL : RCM 40DR OUTDOOR UNIT MODEL: ALC 35CR...
  • Page 53 INDOOR UNIT MODEL : RCM 40/50DR OUTDOOR UNIT MODEL: ALC/A4LC 40/50CR...
  • Page 54 INDOOR UNIT MODEL : RCM 61/62CR OUTDOOR UNIT MODEL: ALC/A4LC 61CR...
  • Page 55 INDOOR UNIT MODEL : RCM 61/62CR OUTDOOR UNIT MODEL: ALC/A4LC 60CR...
  • Page 56 ATTACHMENT 60HZ OUTDOOR UNIT MODEL : ALC 30C (COOLING ONLY) 60HZ / 1 PHASE / 208 ~230V MODEL : ALC 40/50C (COOLING ONLY) 60HZ / 3 PHASE / 200 ~230V MODEL : ALC 40/50CR (COOLING ONLY) 60HZ / 3 PHASE / 200 ~230V...
  • Page 57 3 PHASE FOR 2 & 3 HP OUTDOOR UNIT MODEL : ALC/A4LC 20/25B (COOLING ONLY) 3 PHASE / 50 HZ / 380 ~ 415V MODEL : ALC/A4LC 30C (COOLING ONLY) 3 PHASE / 50 HZ / 380 ~ 415V...
  • Page 58 MODEL : ALC/A4LC 20/25BR (HEAT PUMP) 3 PHASE / 50HZ / 380 ~ 415V MODEL : ALC/A4LC 30CR (HEAT PUMP) 3 PHASE / 50HZ / 380 ~ 415V...
  • Page 59 HIGH AMBIENT UNIT OUTDOOR UNIT MODEL : ALC 20/25B (COOLING ONLY) 50HZ / 1 PHASE / 220 – 240V, 60HZ / 1 PHASE / 208 – 230V OUTDOOR UNIT MODEL : ALC 30C (COOLING ONLY) 50HZ / 1 PHASE / 220 – 240V, 60HZ / 1 PHASE / 208 –...
  • Page 60 OUTDOOR UNIT MODEL : ALC 20/25BR (HEAT PUMP) 50HZ / 1 PHASE / 220 – 240V OUTDOOR UNIT MODEL : ALC 30CR (HEAT PUMP) 50HZ / 1 PHASE / 220 – 240V, 60 HZ / 1 PHASE / 220V OUTDOOR UNIT MODEL : ALC 40/50CR (HEAT PUMP) 50HZ / 3 PHASE / 380 –...
  • Page 61 LOW AMBIENT UNIT (OPTIONAL) OUTDOOR UNIT MODEL : ALC 10B / 15B (50HZ) OUTDOOR UNIT MODEL : ALC 20B / 25B (50HZ)
  • Page 62 LOW AMBIENT UNIT OUTDOOR UNIT MODEL : ALC 10/15BR 50HZ / 1 PHASE / 220 – 240V OUTDOOR UNIT MODEL : ALC 20BR 50HZ / 1 PHASE / 220 – 240V OUTDOOR UNIT MODEL : ALC 25BR 50HZ / 1 PHASE / 220 – 240V...
  • Page 63 SINGLE PHASE FOR 4HP OUDOOT UNIT MODEL : ALC/A4LC 40C (COOLING ONLY) MODEL : ALC/A4LC 40CR (HEATPUMP)

  • Page 64: Special Precautions For R407C

    9. SPECIAL PRECAUTIONS FOR R407C SPECIAL PRECAUTIONS WHEN DEALING WITH REFRIGERANT R407C UNIT What is new refrigerant R407C? R407C is a zeotropic refrigerant mixture which has Zero Ozone Depletion Potential (ODP = 0) and thus conformed to the Montreal Protocol regulation. It requires Polyol-ester oil (POE) oil for its compressor's lubricant. Its refrigerant capacity and performance are about the same as the refrigerant R22.
  • Page 65 Ensure that the compressor is not expose to open air for more than the recommended time specified by its manufacturer (typically less than 10 minutes). Removed the seal-plugs only when the compressor is about to be brazed. The system should be thoroughly vacuumed to 1.0 Pa (-700mmHg) or lower. This vacuuming level is more stringent than R22 system so as to ensure no incompressible gas and moisture in the system.
  • Page 66 10. INSTALLATION Caution Sharp edges and coil surfaces are potential injury hazard. Avoid from contact with them. (1) INSTALLATION OF OUTDOOR UNIT PRELIMINARY SITE SURVEY • Electrical supply and installation is to conform to local authority's (e.g. National Electrical Board) codes and regulations.
  • Page 67 RCM-D RCM61C Figure B Please ensure that the following steps are taken : • Check the gradient for drainage flow as recommended in Figure B. • Provide clearance for easy servicing and optimal air flow as shown in Figure C. •...
  • Page 68 RCM 61/62C Figure C • Provide the installation space as shown in Figure D. RCM-D RCM 61/62C Figure D...
  • Page 69 INSTALLATION - CEILING EXPOSED TYPE STEP 1 Remove air intake grille, side panel, side close-up and hanger bracket from the unit; see Fig E SIDE CLOSE UP HANGER BRACKET SIDE FRAME AIR INTAKE GRILLE Figure E STEP 2 Position the hanger rods as per Fig B and install the hanger bracket; see Fig F. Figure F STEP 3 Hanger up the unit and tighten the bolt, after completed the piping and drain pipe;...
  • Page 70 INSTALLATION - FLOOR STANDING TYPE (OPTIONAL SPECIFICATION) STEP 1 Remove air intake grille, side panel, side close-up and side panel from the unit; see Fig E. STEP 2 Position the floor support (field supply) as per Fig B. install the unit; see Fig I Wall Wall Fig I...
  • Page 71 (2) INSTALLATION OF OUTDOOR UNIT As condensing temperature rises, evaporating temperature rises and cooling capacity drops. In order to achieve maximum cooling capacity, the location selected for outdoor unit should fulfill the following requirements: • Install the condensing (outdoor) unit in away such that hot air distributed by the outdoor condensing unit cannot be drawn in again (as in the case of short circuit of hot discharge air).
  • Page 72 (3) REFRIGERANT PIPING MAXIMUM PIPE LENGTH AND MAXIMUM NUMBER OF BENDS • When the pipe length becomes too long, both the capacity and reliability drop. As the number of bends increases, system piping resistance to the refrigerant flow increases, thus lowering the cooling capacity, and as the result the font compressor may become defective.
  • Page 73 (5) VACUUMING AND CHARGING • The precharged outdoor unit does not need any vacuuming or charging. However once it is connected, the connecting pipe line and the indoor need to be vacuumed before releasing the R22/R407C from the outdoor unit. 1) Open the service port core cap.
  • Page 74 (6) ADDITIONAL CHARGE • The refrigerant gas has already charged into the outdoor unit. For the piping length of 5m. Additional refrigerant charge after vacuuming is not necessary. • When the piping length is more than 5m, please use the table below (unit in gram). MODEL 20D/20DR 30/50...
  • Page 75 (8) STANDARD OPERATING CONDITION Cooling Only Unit Ts °C Th °C Temperature 19.4 13.9 minimum indoor temperature 26.7 19.4 maximum indoor temperature 19.4 13.9 minimum outdoor temperature 46.0 24.0 maximum- outdoor temperature Heat Pump Unit Ts °C Th °C Temperature 15.0 minimum indoor temperature 26.7...
  • Page 76 (9) OPERATING STATE AND FAULT TABLE Wireless Remote Control - Handset Cooling: LED Indicator Light Display Heatpump : LED Indicator Light Display COOL COOL HEAT Self Diagnosis Table Operation/ Faulty Indicator COOL HEAT Cooling mode Dry mode Fan mode Heat mode Auto mode in heating operation Auto mode in heating operation Defrost operation...

  • Page 77: Remote Control Operation Guide

    11. REMOTE CONTROL OPERATION GUIDE G6 REMOTE CONTROLLER TEMPERATURE SETTING FAN SPEED AND SIGNAL TRANSMISSION VENTILATION MODE INDICATION • Set the desire room SELECTION • Blink to confirm the temperature. Press the button until last setting has been • Press button to increase the desired fan speed is send to the unit.
  • Page 78 SENSOR ON/OFF ON/OFF AUTO COOL HIGH TEMP MODE TEMP HEAT SWING SLEEP TIMER SWING SLEEP TIMER MODE AC-5300 (OPTIONAL) 1. “ON/OFF” switch 6. “Sleep” mode • Press to start the air conditioner unit. • Press button to activate the sleep function. •...
  • Page 79 G8 REMOTE CONTROLLER 1. Transmission source • Set the desired off time by pressing the SET button • The source where the signal will be transmitted. continuously. • Press the CLR button to cancel the off timer 2. Signal Transmission indication setting.

  • Page 80: Service And Maintenance

    12. SERVICE AND MAINTENANCE Warning: Disconnect from main supply before servicing the air conditioner. The unit is designed to give long life operation with minimum maintenance required. However, it should be regularly checked and the following items should be given due attention. Components Maintenance Procedure Recommended Schedule...
  • Page 81 The design of the ALC outdoor series allows servicing to be carried out readily and easily. The removal of the top side, front and back panel make almost every part accessible. Under normal circumstances, these outdoor units only require a check and cleaning of air intake coil surface once quarterly.

  • Page 82: Troubleshooting

    13. TROUBLESHOOTING When any air-conditioner malfunction is noted, immediately switch off the power supply to the unit, and contact the local dealer, if necessary. Some simple troubleshooting tips are given below : FAULT CAUSE 1. Fan does not work 3 minutes after •...
  • Page 83 FOR COOLING ONLY MODELS OR HEAT PUMP MODELS (COOLING CYCLE) DIAGNOSIS BY FLOW CHART The following chart are efficient checking procedures for troubleshooting when these fan-coil units are coupled with the condensing units using standard wiring. For dual circuited models, perform the procedures for each circuit.

  • Page 84: Insufficient Cooling

    INSUFFICIENT COOLING Insufficient Cooling Cycling On Compressor Cycling High Discharge Pressure or Low See "High Discharge Pressure" or Tripping Suction Pressure "Low Suction Pressure" Dual Pressure Switch Clogged Capillary or Pressure Repair Clogging and Replace Switch The Switch If Required Switch Faulty Repair or Change If Necessary Running...

  • Page 85: Low Suction Pressure

    HIGH SUCTION PRESSURE High Suction Pressure Evaporator Reduce The Fresh Air Intake Excessive Fresh Air Intake Air Inlet Temp. Insufficient Duct Insulation Reinforce The Duct Insulation Change Or Repair The Defective Compressor Valve Compressor Overcharged Refrigerant Purge The Refrigerant LOW SUCTION PRESSURE Low Suction Pressure Clogged Air Filter Clean The Air Filter...
  • Page 86 FOR HEAT PUMP MODELS By means of pressure readings : PRESSURE PROBABLE CAUSE Data Circuit High Side 1. Overcharged with refrigerant. Low Side 2. Non-condensable gases in refrigerant circuit (e.g. oil). 3. Obstructed air-intake/discharge. 4. Short circuiting of hot air at outdoor unit. High Side 1.
  • Page 87 The most common causes of air conditioner failure to “start" are: a) Voltage not within ±10% of rated voltage. b) Power supply interrupted. c) Control settings improper. d) Air conditioner is disconnected from main power source. e) Fuse blown or circuit breaker off. ii) DIAGNOSIS OF REFRIGERANT CIRCUIT / APPLICATION There might be some cases where the unit starts running but does not perform satisfactory, i.e.

  • Page 88: Parts List

    14. PARTS LIST MODEL : RCM 20/25 D/DR PARTS DESCRIPTION PARTS DESCRIPTION TOP PANEL COIL ASSY HANGER BRACKET - LEFT SIDE FRAME ASSY – RIGHT CONTROL BOX CLOSE UP, SIDE RIGHT CLOSE UP, SIDE PANEL COIL HOLDER ASSY - RIGHT SIDE FRAME ASSY - LEFT BACK PANEL COIL HOLDER ASSY - LEFT...
  • Page 89 MODEL : RCM 30 D/DR PART DESCRIPTION PART DESCRIPTION BRACKET HANGER, LEFT GRILLE, AIR INTAKE TERMINAL BOX COVER ASSY, FILTER FRAME LEFT/RIGHT BRACKET CENTRE SUPPORT CLOSE UP, LEFT THERMISTER FRAME, SIDE LEFT FRAME, SIDE RIGHT ASSY, COIL HOLDER LEFT CLOSE UP, RIGHT FAN DECK ASSY, COIL HOLDER RIGHT COIL ASSY...
  • Page 90 MODEL : RCM 40/50 D/DR PART DESCRIPTION PART DESCRIPTION BRACKET HANGER, LEFT DRAIN PAN ASSY TERMINAL BOX COVER DRAIN HOSE ASSY AIR INTAKE GRILLE ASSY CLOSE UP, LEFT AIR INTAKE GRILLE ASSY FRAME, SIDE LEFT BACKET, CENTER SUPPORT ASSY, COIL HOLDER LEFT FRAME, SIDE RIGHT FAN DECK CLOSE UP, RIGHT...
  • Page 91 MODEL : RCM 61 /62 C/CR PART DESCRIPTION PART DESCRIPTION TOP BACK PANEL DRAIN PAN COIL HOLDER LEFT BOTTOM PANEL COIL ASSY TERMINAL BOX FAN DECK FRONT FRAME (PLAIN) MOTOR FRONT FRAME (WITH LED INDICATORS) BLOWER HOUSING & WHEEL SIDE PANEL RUBBER COUPLING HOOK 4 x 14 mm BRACKET, FAN DECK...
  • Page 92 MODEL : ALC/A4LC20/25 B/BR ALC30 B/BR PART DESCRIPTION PART DESCRIPTION BACK PANEL TOP PANEL BASE PAN COIL ASSY CAPILLARY TUBE MOTOR MOUNTING BRACKET PARTITION FAN MOTOR TERMINAL BOX PANEL RING WASHER SIDE PANEL FAN BLADE ACCESS PANEL SQUARE WASHER PLATE, FLARE VALVE HEX NUT FLARE VALVE BLACK LABEL...
  • Page 93 MODEL : ALC/A4LC 30/40/50/61 C/CR, A4LC 60C ALC35 C/CR PART DESCRIPTION PART DESCRIPTION BASE PAN MOTOR BRACKET ASSY FLARE VALVE SIDE PANEL LEFT FLARE VALVE FAN MOTOR PARTITION FAN BLADE COMPRESSOR FRONT PANEL ASSY ACCESS PANEL TERMINAL BOX ASSY ACCUMULATOR PLATE, FLARE VALVE BACK PANEL TOP PANEL...
  • Page 94 DOP: While upmost care is taken in ensuring that all details in the publication are correct at time of going to press, we are constantly striving for improvement and therefore reserve the rights to alter model specifications and equipment without prior notice. Details of specifications and equipment are also subject to change to suit local conditions and equirements and not all models are available in every market.

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