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Technibel MCAV77C5VAB Technical Data & Service Manual

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TECHNICAL DATA & SE RVICE MANUAL
MCAV77C5VAB
MCAV97C5VAB
MCAV127C5VAB
KPAV128C5TAA
SPLIT SYSTEM AIR CONDITIONER
MCAV77C5VAB
MCAV97C5VAB
MCAV127C5VAB
KPAV128C5TAA
Floor-Mounted
Ceiling-Mounted
Indoor Unit
0.8180.071.0
+
GR79C5TBA
+
GR99C5TBA
+
GR129C5TBA
+
GR129C5TBA
04/01
Outdoor Unit
GR79C5TBA
GR99C5TBA
GR129C5TBA

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Summary of Contents for Technibel MCAV77C5VAB

  • Page 1 TECHNICAL DATA & SE RVICE MANUAL MCAV77C5VAB GR79C5TBA MCAV97C5VAB GR99C5TBA MCAV127C5VAB GR129C5TBA KPAV128C5TAA GR129C5TBA SPLIT SYSTEM AIR CONDITIONER Indoor Unit Outdoor Unit MCAV77C5VAB MCAV97C5VAB MCAV127C5VAB GR79C5TBA GR99C5TBA GR129C5TBA KPAV128C5TAA Floor-Mounted Ceiling-Mounted 0.8180.071.0 04/01...
  • Page 2 Important! When Transporting Be careful when picking up and moving the indoor and Please Read Before Starting outdoor units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp This air conditioning system meets strict safety and edges or thin aluminum fins on the air conditioner can operating standards.

  • Page 3: Table Of Contents

    Table of Contents Page 1. OPERATING RANGE ..........................1 2. SPECIFICATIONS 2-1. Unit Specifications .......................... 2 2-2. Major Component Specifications....................6 2-3. Other Component Specifications....................13 3. DIMENSIONAL DATA..........................14 4. REFRIGERANT FLOW DIAGRAM ......................17 5. PERFORMANCE DATA 5-1. Performance charts ........................19 5-2.

  • Page 4: Operating Range

    1. OPERATING RANGE Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp. Maximum 32°C D.B. / 23°C W.B. 43°C D.B. Cooling Minimum 19°C D.B. / 14°C W.B. 19°C D.B.

  • Page 5: Specifications

    2. SPECIFICATIONS 2-1. Unit Specifications Indoor Unit MCAV77C5VAB Outdoor Unit GR79C5TBA Power Source 220–240V ~ 50Hz Voltage rating 230 V Performance Cooling Capacity 2.30 BTU/h 7840 Air circulation (High) Moisture removal (High) Liters/h Electrical Rating Cooling Available voltage range 198 ~ 264...
  • Page 6 Indoor Unit MCAV97C5VAB Outdoor Unit GR99C5TBA Power Source 220–240V ~ 50Hz Voltage rating 230 V Performance Cooling Capacity 2.65 BTU/h 9,037 Air circulation (High) Moisture removal (High) Liters/h Electrical Rating Cooling Available voltage range 198 ~ 264 Running amperes Power input Power factor C.O.P.
  • Page 7 Indoor Unit MCAV129C5VAB Outdoor Unit GR129C5TBA Power Source 220–240V ~ 50Hz Voltage rating 230 V Performance Cooling Capacity 3.40 BTU/h 11590 Air circulation (High) Moisture removal (High) Liters/h Electrical Rating Cooling Available voltage range 198 ~ 264 Running amperes Power input 1330 Power factor C.O.P.
  • Page 8 Indoor Unit KPAV128C5TAA Outdoor Unit GR129C5TBA Power Source 220–240V ~ 50Hz Voltage rating 230 V Performance Cooling Capacity 3.50 BTU/h 11,935 Air circulation (High) Moisture removal (High) Liters/h Electrical Rating Cooling Available voltage range 198 ~ 264 Running amperes Power input 1,270 Power factor C.O.P.

  • Page 9: Major Component Specifications

    2-2. Major Component Specifications 2-2-1. Indoor Unit Indoor Unit MCAV77C5VAB Controller Part No. POW-K8E(A), POW-K8E(B) Controls Microprocessor Control circuit fuse 250 V 3.15 A Remote Control Unit RCS-8PS3E Fan & Fan Motor Type Cross-flow Q'ty ... Dia. and length 1 ... ø95 / L617 Fan motor model ...
  • Page 10 Indoor Unit MCAV97C5VAB Controller Part No. POW-K8E(A), POW-K8E(B) Controls Microprocessor Control circuit fuse 250 V 3.15 A Remote Control Unit RCS-8PS3E Fan & Fan Motor Type Cross-flow Q'ty ... Dia. and length 1 ... ø95 / L617 Fan motor model ... Q'ty KFV4Q-11H5P-S ...
  • Page 11 Indoor Unit MCAV127C5VAB Controller Part No. POW-K8E(A), POW-K8E(B) Controls Microprocessor Control circuit fuse 250 V 3.15 A Remote Control Unit RCS-8PS3E Fan & Fan Motor Type Cross-flow Q'ty ... Dia. and length 1 ... ø95 / L617 Fan motor model ... Q'ty KFV4Q-11H5P-S ...
  • Page 12 Indoor Unit KPAV128C5TAA Controller PCB Part No. POW-K185GS-N Controls Microprocessor Control circuit fuse 250 V 3 A Remote Control Unit RCS-5PS3E Fan & Fan Motor Type Cross-flow Q'ty ... Dia. and length 2 ... ø130 / L180 Fan motor model ... Q'ty K48407-M01416 ...
  • Page 13 2-2-2. Outdoor Unit Outdoor Unit GR79C5TBA Compressor Type Rotary (Hermetic) Compressor model RH130VHAT Nominal output Compressor oil ... Amount DIAMOND MS56 ... 300 Ω Coil resistance (Ambient temp. 25°C) C–R : 4.26 +/-7% C–S : 5.87 +/-7% Safety devices Type Internal protector (K) Operating temp.
  • Page 14 Outdoor Unit GR99C5TBA Compressor Type Rotary (Hermetic) Compressor model RH154VHAT Nominal output Compressor oil ... Amount DIAMOND MS 56 ... 300 Ω Coil resistance (Ambient temp. 25°C) C–R : 3.5±7% C–S : 5.55±7% Safety devices Type Internal protector (K) Operating temp. Open °C 150±5...
  • Page 15 Outdoor Unit GR129C5TBA Compressor Type Rotary (Hermetic) Compressor model RH231VHFT Nominal output 1100 Compressor oil ... Amount DIAMOND MS 56 ... 520 Ω Coil resistance (Ambient temp. 25°C) C–R : 2.17 +/-7% C–S : 3.99 +/-7% Safety devices Type Internal protector (K) Operating temp.

  • Page 16: Other Component Specifications

    2-3. Other Component Specifications Indoor Unit MCAV77C5VAB MCAV97C5VAB MCAV127C5VAB KPAV128C5TAA Transformer (TR) ATR-J105 Rating Primary AC 230V, 50 / 60 Hz Secondary 19V, 0.526A Capacity 10VA Ω (at 21°C) Coil resistance Primary (WHT – WHT): 205 ± 10% Secondary (BRN – BRN): 2.0 ±...

  • Page 17: Dimensional Data

    3. DIMENSIONAL DATA Indoor Unit MCAV77C5VAB MCAV97C5VAB MCAV127C5VAB Drain hose ø18 Remote control unit 18.5 99.5 58.5 Narrow tube ø6.35 (1/4") Center of tubing hole (2 places) Wide tube ø9.52 (3/8") MCAV77/97 Wide tube ø12.7 (1/2") MCAV127 Unit : mm...
  • Page 18 Indoor Unit KPAV128C5TAA Center of tubing hole Remote control unit ø75 (4 places) Wide tube ø12.7 (1/2") Narrow tube ø6.35 (1/4") Drain hose ø26 18.5 Unit : mm...
  • Page 19 Outdoor Unit GR79C5TBA GR99C5TBA GR129C5TBA 4 – ø12 holes Air intake Wide tube service valve ø9.52 (3/8") GR79/99 ø12.7 (1/2") GR129 Narrow tube service valve Air discharge ø6.35 (1/4") Unit : mm...

  • Page 20: Refrigerant Flow Diagram

    4. REFRIGERANT FLOW DIAGRAM Indoor Unit MCAV77C5VAB Outdoor Unit GR79C5TBA MCAV97C5VAB GR99C5TBA Indoor Unit Outdoor Unit Wide tube service Compressor Accumulator Wide tube valve Muffler O.D. ø9.52 mm (3/8 ") Narrow tube service Narrow tube valve Capillary tube Strainer O.D.
  • Page 21 Insulation of Refrigerant Tubing IMPORTANT Insulation Because capillary tubing is used in the outdoor unit, both the Thickness: Thickness: wide and narrow tubes of this air conditioner become cold. To Min. 8 mm Min. 8 mm prevent heat loss and wet floors due to dripping of condensation, both tubes must be well insulated with a proper insulation material.

  • Page 22: Performance Data

    5. PERFORMANCE DATA 5-1. Performance charts Indoor Unit MCAV77C5VAB Outdoor Unit GR79C5TBA Cooling Characteristics Indoor inlet air D.B. temp. (°C) Outdoor inlet air D.B. temp. (°C) Indoor inlet air 1.38 (13) D.B. temp. (°C) 1.28 (12) 1.18 (11) 1.08 (10) 0.98 ( 9 )
  • Page 23 Indoor Unit MCAV97C5VAB Outdoor Unit GR99C5TBA Cooling Characteristics Indoor inlet air D.B. temp. (°C) Outdoor inlet air D.B. temp. (°C) Indoor inlet air 1.38 (13) D.B. temp. (°C) 1.28 (12) 1.18 (11) 1.08 (10) 0.98 ( 9 ) 0.89 ( 8 ) 0.79 ( 7 ) 0.69 ( 6 ) 0.59 ( 5 )
  • Page 24 Indoor Unit MCAV127C5VAB KPAV128C5TAA Outdoor Unit GR129C5TBA Cooling Characteristics Indoor inlet air D.B. temp. (°C) Outdoor inlet air D.B. temp. (°C) Indoor inlet air 1.38 (13) D.B. temp. (°C) 1.28 (12) 1.18 (11) 1.08 (10) 0.98 ( 9 ) 0.89 ( 8 ) 0.79 ( 7 ) 0.69 ( 6 ) 0.59 ( 5 )

  • Page 25: Air Throw Distance Chart

    5-2. Air Throw Distance Chart Indoor Unit MCAV77C5VAB Room air temp. : 27°C Fan speed High Horizontal distance (m) Axis air velocity 0° Flap angle 30°...
  • Page 26 Indoor Unit MCAV97C5VAB Room air temp. : 27°C Fan speed High Horizontal distance (m) Axis air velocity 0° Flap angle 30°...
  • Page 27 Indoor Unit MCAV127C5VAB Room air temp. : 27°C Fan speed High Horizontal distance (m) Axis air velocity 0° Flap angle 30°...
  • Page 28 Indoor Unit KPAV128C5TAA Room air temp. : 27°C Fan speed High Floor mounted Axis air verocity Flap angle 60° 45° Horizontal distance (m) Ceiling mounted Horizontal distance (m) Axis air verocity Flap angle 30° 45°...

  • Page 29: Cooling Capacity

    5-3. Cooling Capacity Indoor Unit MCAV77C5VAB Outdoor Unit GR79C5TBA 230V Single Phase 50Hz RATING CAPACITY 2.05 kW AIR FLOW RATE 430 m EVAPORATOR CONDENSER ENT. TEMP. °C OUTDOOR AMBIENT TEMP. °C W.B. D.B. 2.07 1.98 1.89 1.80 1.69 1.55 0.42 0.45...
  • Page 30 Indoor Unit MCAV97C5VAB Outdoor Unit GR99C5TBA 230V Single Phase 50Hz RATING CAPACITY 2.65 kW AIR FLOW RATE 470 m EVAPORATOR CONDENSER ENT. TEMP. °C OUTDOOR AMBIENT TEMP. °C W.B. D.B. 2.67 2.55 2.44 2.32 2.18 2.01 0.59 0.64 0.68 0.73 0.80 0.86 1.84...
  • Page 31 Indoor Unit MCAV127C5VAB KPAV128C5TAA Outdoor Unit GR129C5TBA 230V Single Phase 50Hz RATING CAPACITY 3.50 kW AIR FLOW RATE 490/700 m EVAPORATOR CONDENSER ENT. TEMP. °C OUTDOOR AMBIENT TEMP. °C W.B. D.B. 3.53 3.37 3.22 3.07 2.88 2.65 0.89 0.97 1.03 1.11 1.23 1.36...

  • Page 32: Electrical Data

    : Indoor Air Temperature 27°C D.B. / 19°C W.B. Outdoor Air Temperature 35°C D.B. Full Load Conditions : Indoor Air Temperature 32°C D.B. / 23°C W.B. Outdoor Air Temperature 43°C D.B. Indoor Unit MCAV77C5VAB Outdoor Unit GR79C5TBA Indoor Unit Outdoor Unit...
  • Page 33 Indoor Unit KPAV128C5TAA Outdoor Unit GR129C5TBA Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230V 1-phase 50Hz Rating Conditions Running Amps. 0.29 0.28 5.33 Power Input 0.070 0.062 1.138 1.27 Full Load Conditions Running Amps. 0.29 0.28 6.83...

  • Page 34: Electric Wiring Diagrams

    6-2. Electric Wiring Diagrams To avoid electrical shock hazard, be sure to Indoor Unit MCAV77C5VAB disconnect power before checking, servicing MCAV97C5VAB WARNING MCAV127C5VAB and/or cleaning any electrical parts.
  • Page 35 Indoor Unit KPAV128C5TAA...
  • Page 36 To avoid electrical shock hazard, be sure to Outdoor Unit GR79C5TBA disconnect power before checking, servicing GR99C5TBA WARNING GR129C5TBA and/or cleaning any electrical parts.

  • Page 37: Function

    7. FUNCTION 7-1. Room Temperature Control Room temperature control is obtained by cycling the compressor ON and OFF under control of the room temperature sensor in the remote control unit. The room temperature (and other information) is transmitted every 3 minutes by the remote control unit to the controller in the indoor unit.

  • Page 38: Dry Operation

    7-2. Dry Operation (Dehumidification) Dry operation uses the ability of the cooling cycle to remove moisture from the air, but by running at low level to dehumidify without greatly reducing the room temperature. The air conditioner repeats the cycle of turning ON and OFF automatically as shown in the chart below according to the room temperature.

  • Page 39: Freeze Prevention

    7-3. Freeze Prevention This function prevents freezing of the indoor heat exchange coil. When the compressor has been running for 10 minutes or more and the temperature of the indoor heat exchange coil falls below –1°C, the control circuit stops the compressor for at least 6 minutes. The compressor does not start again until the temperature rises above 8°C or 6 minutes has elapsed.

  • Page 40: Troubleshooting

    8. TROUBLESHOOTING 8-1. Check before and after troubleshooting WARNING Hazardous voltage can cause ELECTRIC SHOCK or DEATH. Disconnect power or turn off circuit breaker before you start checking or servicing. 8-1-1. Check power supply wiring. Check that power supply wires are correctly connected to terminals L and N on the terminal plate in the indoor unit.

  • Page 41: Air Conditioner Does Not Operate

    8-2. Air conditioner does not operate. 8-2-1. Circuit breaker trips (or fuse blows). A. When the circuit breaker is set to ON, it is tripped soon. (Resetting is not possible.) There is a possibility of ground fault. Check insulation resistance. If resistance value is 2MΩ...
  • Page 42 B. Circuit breaker trips in several minutes after turning the air conditioner on. There is a possibility of short circuit. • Check capacity of circuit breaker. Replace with suitable one (larger capacity). Capacity of circuit breaker is suitable. Measure resistance of outdoor fan •...
  • Page 43 D. Check remote control unit. • Try to run with another remote control unit. First remote control unit is defective. • Check for residue buildup on Clean transmitter. transmitter of remote control unit. • Check for residue buildup on remote Clean receiver.
  • Page 44 8-2-3. Only outdoor unit does not run. A. Check setting temperature. Is room temperature too low ? Try to lower setting temperature by temperature setting button ( button). Outdoor unit still does not run. • Try to run using another remote control unit.

  • Page 45: Some Part Of Air Conditioner Does Not Operate

    8-3. Some part of air conditioner does not operate. 8-3-1. Only indoor fan does not run. • Check fan casing Remove foreign foreign matter on matter or repair. Fan cannot inside. be turned. • Check fan rotation. Turn fan gently once or twice by hand.
  • Page 46 8-3-3. Only compressor does not run. • Check compressor motor Internal protector (K) is working. capacitor. (C1) • Measure resistance of Temperature of compressor is abnormally high. compressor motor winding. Refrigerant gas shortage. Charge refrigerant gas (R22). • Measure Power supply Rotor may be locked up.

  • Page 47: Air Conditioner Operates, But Abnormalities Are Observed

    8-4. Air conditioner operates, but abnormalities are observed. 8-4-1. Poor cooling. • Check position of remote control unit. Change position of remote Cool air from air conditioner reaches • control unit. position directly. • Wide and narrow tubes between Insulate both wide and narrow indoor unit and outdoor unit are tubes separately and then insulated.

  • Page 48: If A Sensor Is Defective

    8-5. If a sensor is defective. 8-5-1. Indoor coil temp. thermistor (TH1) is defective. • Operation lamp on front side of • Thermistor (TH1 ) is defective. indoor unit is flashing on and off. (*) • Replace thermistor. NOTE Alarm Signal (*) Operation lamp on the front side of the indoor unit will flash on and off when the indoor coil thermistor is defective.

  • Page 49: Checking Electrical Components

    9. CHECKING ELECTRICAL COMPONENTS power plug 9-1. Measurement of Insulation (Local supply) Resistance Ground The insulation is in good condition if the resistance exceeds 2MΩ. probe Insulation 9-1-1. Power Supply Wires tester NOTE Clamp the grounding terminal of the power plug with a lead clip of the insulation resistance tester and The shape of the power plug may differ from measure the resistance by placing a probe on either of...

  • Page 50: Checking Continuity Of Fuse On Pcb Ass'y

    9-2. Checking Continuity of Fuse Fuse on PCB Ass'y Remove the PCB Ass’y from the electrical component box. Then pull out the fuse from the PCB Ass’y. (Fig. 5) PCB Ass’y Check for continuity using a multimeter as shown in Fig.

  • Page 51: Disassembly Procedure For Indoor Unit

    10. DISASSEMBLY PROCEDURE FOR INDOOR UNIT IMPORTANT! Please Read Before Starting Safety precautions for servicing the CEILING-MOUNTED indoor unit Before attempting to replace heavy and bulky parts such as the evaporator and fan motor, disconnect the indoor unit from the system and place it on the floor. Refer to the steps given below. When checking or servicing the air intake grille, side panels, or electrical component box, first check that power is completely disconnected.

  • Page 52: Removing Side Panels

    10-2. Removing Side Panels Hook (1) Remove the 3 screws attaching the left side panel. (Fig. 3) Slot (2) Note the position of the hook on the inside of the left side panel. To disengage the hook from the slot, Hook slide down the panel for removal.

  • Page 53: Removing Flap Motor

    10-4. Removing Flap Motor (1) Remove the 3 screws used to mount the top panel. Screw (Fig. 6) Top panel (2) While unlatching the 2 tabs inside the back of the top panel, lift the top panel diagonally in the direction of the arrow.(Fig.
  • Page 54 (3) Remove the 6 screws of the front panel and pull it toward you. (Fig. 9) (4) Remove the 2 screws used to mount the Screw evaporator. (Fig. 10) (5) Remove the rubber cap to pull the thermistor out of Front panel the evaporator.

  • Page 55: Removing Fan And Fan Motor

    10-6. Removing Fan and Fan Motor (1) Unlatch the 2 hooks on each side to take off the front fan casing. (Fig. 12) Hook Front fan casing Hook Fig.12 (2) Remove the 2 screws attaching the rear fan casing and then pull the fan casing out. Rear fan casing Fig.13 (3) Insert a hex wrench in the fan boss and turn it...
  • Page 56 R.D. 28 Reyrieux BP 131 - 01601 Trévoux CEDEX France Tél. 04.74.00.92.92 - Fax 04.74.00.42.00 R.C.S. Bourg-en-Bresse B 759 200 728...

This manual is also suitable for:

Gr79c5tbaMcav97c5vabGr99c5tbaMcav127c5vabGr129c5tbaKpav128c5taa

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