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Emerald LCU-07 Technical Manual

R-22, r407c
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CONDENSING UNIT
CONDENSING UNIT
R-22, R407C
R-22, R407C
MODELS:
LCU-07, 07R
LCU-09, 09R
LCU-12, 12R
LCU-18, 18R
LCU-24, 24R
LCU-30, 30R
LCU-36, 36R
LCU-48, 48R
LCU-56, 56R
LCU-60, 60R
DRAFT OF TECHNICAL MANUAL FOR "LCU MODEL"
Issue by:............ Date:.........
Checked by:.................. Date............
Approved by:................. Date:.........

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Summary of Contents for Emerald LCU-07

  • Page 1 CONDENSING UNIT CONDENSING UNIT R-22, R407C R-22, R407C MODELS: LCU-07, 07R LCU-09, 09R LCU-12, 12R LCU-18, 18R LCU-24, 24R LCU-30, 30R LCU-36, 36R LCU-48, 48R LCU-56, 56R LCU-60, 60R DRAFT OF TECHNICAL MANUAL FOR “LCU MODEL” Issue by:………… Date:……… Checked by:……………… Date…………...

  • Page 3: Table Of Contents

    CONTENTS PAGE SPECIAL FEATURES SPECIFICATIONS NOISE LEVEL OPERATION RANGE REFRIGERANT CIRCUIT OUTLINES AND DIMENSIONS WIRING DIAGRAMS SPECIAL PRECAUTIONS FOR R407C INSTALLATION PARTS LIST TROUBLESHOOTING SERVICE AND MAINTENANCE...

  • Page 4: Special Features

    SPECIAL FEATURES ♦Quiet operation with sound insulating blanket and rubber mounting on compressor. ♦Energy efficient and reliable rotary and scroll compressor reducing noise and vibration. ♦Rubber support on the coil guard. ♦Extra strong molded valve supports (1.5 mm. Thickness) for easy installation. ♦Fully charged for 5 meters refrigerant piping.

  • Page 5: Specifications

    SPECIFICATIONS COOLING ONLY R-22 MODEL CONDENSING LCU-07 LCU-09 LCU-12 LCU-18 LCU-24 LCU-30 LCU-36 LCU-48 LCU-56 LCU-60 NOMINAL Kcal/h 1,764 2,268 3,024 4,536 6,048 7,560 9,072 12,096 14,112 15,120 COOLING 2.05 2.64 3.52 5.28 7.03 8.79 10.55 14.07 16.41 17.58 CAPACITY...
  • Page 6 HEAT PUMP R-22 MODEL CONDENSING LCU-07 LCU-09 LCU-12 LCU-18 LCU-24 LCU-30 LCU-36 LCU-48 LCU-56 LCU-60 NOMINAL Kcal/h 1,688 2,218 2,969 4,486 6,010 7,484 8,971 11,985 13,986 14,969 COOLING 1.96 2.58 3.45 5.22 6.99 8.70 10.43 13.94 16.27 17.41 CAPACITY Btu/h...
  • Page 7 COOLING ONLY R-407C MODEL CONDENSING LCU-07 LCU-09 LCU-12 LCU-18 LCU-24 LCU-30 LCU-36 LCU-48 LCU-56 LCU-60 NOMINAL Kcal/h 1,764 2,268 3,024 4,536 6,048 7,560 9,072 12,096 14,112 15,120 COOLING 2.05 2.64 3.52 5.28 7.03 8.79 10.55 14.07 16.41 17.58 CAPACITY Btu/h...
  • Page 8 HEAT PUMP R-407C MODEL CONDENSING LCU-07 LCU-09 LCU-12 LCU-18 LCU-24 LCU-30 LCU-36 LCU-48 LCU-56 LCU-60 NOMINAL Kcal/h 1,764 2,268 3,024 4,536 6,048 7,560 9,072 12,096 14,112 15,120 COOLING 2.05 2.64 3.52 5.28 7.03 8.79 10.55 14.07 16.41 17.58 CAPACITY Btu/h...

  • Page 9: Noise Level

    NOISE LEVEL Model Speed Overall Noise 1/1 Octave Sound pressure level (dB, ref 20µPa) 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz A(dBA) Criteria LCU-07 High Medium 22.6 LCU-09 High Medium LCU-12 High Medium 28.8 26.5 LCU-18 High Medium LCU-24 High...
  • Page 10 LCU-07 CURVES NC-50 High fan Medium fan NC-45 NC-40 Low fan NC-35 NC-30 NC-25 NC-20 1000 2000 4000 8000 Octave-band frequency (Hz) LCU-09 CURVES High fan NC-50 Medium fan NC-45 Low fan NC-40 NC-35 NC-30 NC-25 NC-20 1000 2000 4000...
  • Page 11 LCU-12 CURVES High fan NC-50 Medium fan NC-45 NC-40 Low fan NC-35 NC-30 NC-25 NC-20 1000 2000 4000 8000 Octave-band frequency (Hz) LCU-18 CURVES High fan Medium fan NC-50 NC-45 Low fan NC-40 NC-35 NC-30 NC-25 NC-20 1000 2000 4000 8000 Octave-band frequency (Hz)
  • Page 12 LCU-24 CURVES High fan Medium fan NC-50 Low fan NC-45 NC-40 NC-35 NC-30 NC-25 NC-20 1000 2000 4000 8000 Octave-band frequency (Hz) LCU-30 CURVES High fan Medium fan NC-50 Low fan NC-45 NC-40 NC-35 NC-30 NC-25 NC-20 1000 2000 4000 8000 Octave-band frequency (Hz)
  • Page 13 LCU-36 CURVES High fan Medium fan Low fan NC-50 NC-45 NC-40 NC-35 NC-30 NC-25 NC-20 1000 2000 4000 8000 Octave-band frequency (Hz) LCU-48 CURVES High fan Medium fan NC-50 Low fan NC-45 NC-40 NC-35 NC-30 NC-25 NC-20 1000 2000 4000 8000 Octave-band frequency (Hz)

  • Page 14: Octave-Band Frequency (Hz

    LCU-56 CURVES High fan Medium fan Low fan NC-50 NC-45 NC-40 NC-35 NC-30 NC-25 NC-20 1000 2000 4000 8000 Octave-band frequency (Hz) LCU-60 CURVES High fan Medium fan Low fan NC-50 NC-45 NC-40 NC-35 NC-30 NC-25 NC-20 1000 2000 4000 8000 Octave-band frequency (Hz)

  • Page 15: Operation Range

    OPERATION RANGE Ensure the operating temperature is in allowable range Cooling only Cooling Standard Cooling with low ambient kit LOW AMBIENT KIT Indoor temp.( CWB) Indoor temp.( CWB) Heat pump Heating Caution: The use of your air conditioner outside the range of working temperature and humidity can result in serious failure.

  • Page 16: Refrigerant Circuit

    REFRIGERANT CIRCUIT MODEL: INDOOR UNIT (COOLING) / LCU MODEL: INDOOR UNIT (HEATING) / LCU...

  • Page 17: Outlines And Dimensions

    OUTLINES AND DIMENSIONS OUTDOOR UNIT MODEL: LCU SERIES (COOLING ONLY AND HEAT PUMP) LCU-48, 56, 60 LCU-07, 09, 12, 18, 24, 30, 36 DIMENSION (mm) CONNECTION WEIGHT CAPACITY MODEL (BTU/H) LIQUID SUCTION GROSS " LCU-07 7,000 " LCU-09 9,000 LCU-12 12,000 &...

  • Page 18: Wiring Diagrams

    WIRING DIAGRAMS COOLING ONLY CONDENSING UNIT MODEL: LCU-07, 09, 12 MATCH LCU HEATPUMP CONDENSING UNIT MODEL: LCU-07R, 09R, 12R MATCH LCU...
  • Page 19 COOLING ONLY CONDENSING UNIT MODEL: LCU-18, 24, 36 MATCH LCU HEATPUMP CONDENSING UNIT MODEL: LCU-18R, 24R, 36R MATCH LCU...
  • Page 20 COOLING ONLY CONDENSING UNIT MODEL: LCU-48, 56, 60 MATCH LCU. HEATPUMP CONDENSING UNIT MODEL: LCU-48R, 56R, 60R MATCH LCU...

  • Page 21: Special Precautions For R407C

    SPECIAL PRECAUTIONS FOR R407C !"##$%$&'$()$*+$$&(%,--(.&!(%,/01' 1.WHY COME TO R-407C Recognizing the global nature of the problem, on September 16,1987, in Montreal, Canada, 24 nations and the European Economic Community (EEC) signed the Montreal Protocol on Substances that Deplete the Ozone layer. Now focus is on HCFCs in air conditioning and refrigeration, The industry is looking at the transition from R-22 to longer-term HFC alternatives.
  • Page 22 COMPRESSOR OIL No additional charge of compressor oil is permitted. REFRIGERANT No other refrigerant other that R407C TOOLS Tools specifically for R407C only (must not be used for R22 or other refrigerant) 1.! Manifold gauge and charging hose 2.! Gas leak detector 3.! Refrigerant cylinder/charging cylinder 4.! Vacuum pump c/w adapter 5.! Flare tools...
  • Page 23 5.6) Normally, the R407C cylinder or can is being equipped with, a dip-pipe for liquid withdrawal. However, if the dip-pipe is not available, invert the cylinder or can so as to withdraw liquid from the valve at the bottom. 5.7) When servicing leak, the top up method, commonly practice for R22 system, is not recommended for R407C system, Unlike R22 where the refrigerant is of a single component, the composition of R407C, Which made- up of three different component, may have changed during the leak.

  • Page 24: Installation

    INSTALLATION The installation shall be made by authorized service personnel only. WARNING 1.For the room air conditioner to operate satisfactorily, install it as outlined in this installation 2.Connect the indoor unit and outdoor unit with the room air conditioner piping and cords available standard parts. This installation manual describes the correct connections using the installation set available from our standard part 3.
  • Page 25 ! Ensure that there is no obstruction of airflow into or out of the unit. Remove obstacles, which block air intake or discharge ! The location must be well ventilated, so that the unit can draw in and distribute plenty of air thus lowering the condensing temperature.
  • Page 26 OUTDOOR UNIT INSTALLATION CAUTION ♦ ♦ ♦ ♦ Set the unit on a strong stand, such as on made of concrete blocks. ♦ When the unit is exposed to vibration, install protective rubber pieces under it. ♦ Do not install the unit directly on the ground, because it will cause trouble. ♦...
  • Page 27 Model Flare nut width across flats Liquid Suction 7,000-12,000 Btu/h 17 mm 24 mm 18,000-36,000 Btu/h 21 mm 27 mm 48,000-60,000 Btu/h 24 mm 32 mm BENDING PIPES " The pipes are shaped by your hands. Be careful not to collapse them. Do not bend the pipes in an angle less than .
  • Page 28 CAUTION Be sure to apply the pipe against the port on the indoor unit correctly. If the centering is improper the flare nut will not be tightened smoothly. If the flare nut is forced to turn, threads will be damaged. When the flare nut is tightened properly by your hand, use a torque wrench to finally tighten it.
  • Page 29 CHECKING THE PIPE CONNECTIONS FOR GAS LEAKING For both the indoor and outdoor unit side, check the joints for gas leaking by the use of a gas leakage detector without fail when the pipes are connected. HEAT INSULATION ON THE PIPE JOINTS Put coupler heat insulator on the joints (indoor side only) ADDITIONAL CHARGE Refrigerant suitable for a pipe length of 5 m.
  • Page 30 (3) Using pliers, bend the solid wire to form a loop suitable for the terminal screw. (4) Shape the loop wire properly, place it on the terminal block an tighten securely with the terminal screw using a screwdriver. For standing wiring (1) Cut the wire with a wire cutter or wire-cutting pliers, then strip the insulation to about "(10mm) of expose the stand wiring.

  • Page 31: Parts List

    PARTS LIST MODEL LCU-07, 09, 12 PARTS DESCRIPTION Qty. PARTS DESCRIPTION Qty. BASE PAN 1 PC 10 FBASE FOR ELEC.PART 1 PC TOP COVER 1 PC 11 FAN MOTOR 1 PC AIR SHIELD PLATE 1 PC 12 PROPELLER 1 PC...
  • Page 32 MODEL LCU-18, 24, 30, 36 PARTS DESCRIPTION Qty. PARTS DESCRIPTION Qty. BASE PAN 1 PC 10 FBASE FOR ELEC.PART 1 PC TOP COVER 1 PC 11 FAN MOTOR 1 PC AIR SHIELD PLATE 1 PC 12 PROPELLER 1 PC FRONT PANEL 1 PC 13 FAN GUARD 1 PC...
  • Page 33 MODEL LCU-48, 56, 60 PARTS DESCRIPTION Qty. PARTS DESCRIPTION Qty. BASE PAN 1 PC 10 FBASE FOR ELEC.PART 1 PC TOP COVER 1 PC 11 FAN MOTOR 2 PCS AIR SHIELD PLATE 1 PC 12 PROPELLER 2 PCS FRONT PANEL 1 PC 13 FAN GUARD 2 PCS...

  • Page 34: Troubleshooting

    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. PROBLEM POSSIBLE CAUSE TO CORRECT Low voltage Check for voltage at compressor. Will operate at 10% voltage variance.
  • Page 35 PROBLEM POSSIBLE CAUSE TO CORRECT Fresh air or exhaust air door opens Close doors. Instruct customer on on applicable models. use of this feature. Low capacity-undercharge. Check for leak and make repair. Does not cool, or cools only slightly. Compressor not pumping properly. Check amperage draw against nameplate.

  • Page 36: Service And Maintenance

    SERVICE AND MAINTENACE CAUTION Before cleaning the air conditioner be sure to turn it off and turn off the circuit breaker. Components Maintenance Procedure Recommended Schedule Air Filter (indoor Unit) 1.!Remove the filter from unit before cleaning the filter At least once a month. 2.

This manual is also suitable for:

Lcu-09Lcu-24Lcu-30Lcu-36Lcu-56Lcu-48 ... Show all

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