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Technibel KPAV128C5 Technical & Service Manual

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TECHNICAL & SERVICE MANUAL
KPAV128C5
KPAV128C5
KPAV128C5
SPLIT SYSTEM AIR CONDITIONER
INDOOR UNIT
Ceiling-Mounted
Floor-Mounted
- GR129C5
- GR127L5
- GRV127L5
0.8180.114.0
09/2000
OUTDOOR UNIT

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Summary of Contents for Technibel KPAV128C5

  • Page 1 TECHNICAL & SERVICE MANUAL KPAV128C5 - GR129C5 KPAV128C5 - GR127L5 KPAV128C5 - GRV127L5 SPLIT SYSTEM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT Ceiling-Mounted Floor-Mounted 0.8180.114.0 09/2000...
  • 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....................4 2-3. Other Component Specifications....................8 3. DIMENSIONAL DATA..........................11 4. REFRIGERANT FLOW DIAGRAM ......................14 5. PERFORMANCE DATA 5-1. Performance charts ........................15 5-2.

  • Page 4: Operating Range

    1. OPERATING RANGE For COOLING ONLY model : GR129C5 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. For LOW AMBIENT cooling model : GR127L5 - GRV127L5 Temperature Indoor Air Intake Temp.

  • Page 5: Specifications

    2. SPECIFICATIONS 2-1. Unit Specifications Indoor Unit KPAV128C5 Outdoor Unit GR129C5 Power Source 220–240V ~ 50Hz Voltage rating 230 V Performance Cooling Capacity 3.40 (R22) BTU/h 11,600 (R22) Air circulation (High) Moisture removal (High) Liters/h Electrical Rating Cooling Available voltage range...
  • Page 6 Indoor Unit KPAV128C5 Outdoor Unit GR127L5 - GRV127L5 Power Source 220–240V ~ 50Hz Voltage rating 220/230/240 V Performance Cooling Capacity 3.50 (R22) - 3.25 (R407C) BTU/h 11,900 (R22) - 11,000 (R407C) Air circulation (High) Moisture removal (High) Liters/h Electrical Rating...

  • Page 7: Major Component Specifications

    2-2. Major Component Specifications 2-2-1. Indoor Unit Indoor Unit KPAV128C5 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 ...
  • Page 8 2-2-2. Outdoor Unit Outdoor Unit GR129C5 Compressor Type Rotary (Hermetic) Compressor model C-R110H5H 80619445-S Nominal output 1,100 Compressor oil ... Amount SUNISO 4GSD-T ... 550 Ω Coil resistance (Ambient temp. 25°C) C–R : 1.962 C–S : 5.38 Safety devices Type External(OLR A) External(OLR T) Overload relay...
  • Page 9 Outdoor Unit GR127L5 Controller PCB Part No. POW-CL128E Control circuit fuse 250 V 3.15 A Compressor Type Rotary (Hermetic) Compressor model C-R110H5H 80619445-S Nominal output 1,100 Compressor oil ... Amount SUNISO 4GSD-T ... 550 Ω Coil resistance (Ambient temp. 25°C) C–R : 1.962 C–S : 5.38 Safety devices...
  • Page 10 Outdoor Unit GRV127L5 Controller PCB Part No. POW-CL128E Control circuit fuse 250 V 3.15 A Compressor Type Rotary (Hermetic) Compressor model C-RN110H5B 80235645 Nominal output 1,100 Compressor oil ... Amount FV68S ... 550 Ω Coil resistance (Ambient temp. 25°C) C–R : 1.962 C–S : 5.38 Safety devices Type...

  • Page 11: Other Component Specifications

    2-3. Other Component Specifications Indoor Unit KPAV128C5 Thermistor (Room sensor TH2) KTEC-35-S6 Resistance kΩ 10°C 10.0 ± 4% 30°C 4.0 ± 4% 15°C 7.9 ± 4% 35°C 3.3 ± 4% 20°C 6.3 ± 4% 40°C 2.7 ± 4% 25°C 5.0 ± 4% 50°C 1.8 ±...
  • Page 12 Outdoor Unit GR127L5 Transformer (TR2) ATR-J65 Rating Primary AC 230V, 50Hz Secondary 19V, 0.315A Capacity Ω (at 22°C) Coil resistance Primary (WHT – WHT): 455 ± 10% Secondary (BRN – BRN): 2.85 ± 10% Thermal cut-off temp. 145°C Power Relay (PR) G7L-2A-TUB Coil rating AC 200 –...
  • Page 13 Outdoor Unit GRV127L5 Transformer (TR2) ATR-J65 Rating Primary AC 230V, 50Hz Secondary 19V, 0.315A Capacity Ω (at 22°C) Coil resistance Primary (WHT – WHT): 455 ± 10% Secondary (BRN – BRN): 2.85 ± 10% Thermal cut-off temp. 145°C Power Relay (PR) G7L-2A-TUB Coil rating AC 200 –...

  • Page 14: Dimensional Data

    3. DIMENSIONAL DATA Indoor Unit KPAV128C5 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 15 Outdoor Unit GR129C5 Air intake Air discharge Wide tube service valve 4 – ø12 holes ø12.7 (1/2") Narrow tube service valve 4 – ø3.3 holes ø6.35 (1/4") Unit : mm...
  • Page 16 Outdoor Unit : GR127L5 - GRV127L5 Air intake Wide tube service valve ø12.7 (1/2") Air discharge 4 – ø12 holes Narrow tube service valve ø6.35 (1/4") 4 – ø3.3 holes Check port ø6.35 (1/4") Unit : mm...

  • Page 17: Refrigerant Flow Diagram

    4. REFRIGERANT FLOW DIAGRAM Indoor Unit KPAV128C5 Outdoor Unit GR129C5 or GR127L5 GRV127L5 Indoor Unit Outdoor Unit Wide tube service Compressor Accumulator valve Wide tube O.D. ø12.7 mm (1/2 ") Condenser Evaporator Narrow tube service Narrow tube valve Strainer Capillary tube O.D.

  • Page 18: Performance Data

    5. PERFORMANCE DATA 5-1. Performance charts Indoor Unit KPAV128C5 Outdoor Unit GR129C5 - GR127L5 - GRV127L5 ■ Cooling Characteristics Indoor inlet air D.B. temp. (°C) Outdoor inlet air D.B. temp. (°C) Indoor inlet air D.B. temp. (°C) Outdoor inlet air D.B. temp. (°C) NOTE ..

  • Page 19: Air Throw Distance Chart

    5-2. Air Throw Distance Chart Indoor Unit KPAV128C5 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 20: Cooling Capacity

    5-3. Cooling Capacity Indoor Unit KPAV128C5 Outdoor Unit GR129C5 - GR127L5 - GRV127L5 240V Single Phase 50Hz RATING CAPACITY 3.50 kW AIR FLOW RATE 700 m EVAPORATOR CONDENSER ENT. TEMP. °C OUTDOOR AMBIENT TEMP. °C W.B. D.B. 3.53 3.37 3.22 3.07...

  • Page 21: Electrical Data

    6. ELECTRICAL DATA 6-1. Electrical Characteristics Indoor Unit KPAV128C5 Outdoor Unit GR129C5 Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 220 – 240V ~ 50Hz Rating Conditions Running Amps. 0.28 / 0.29 0.30 / 0.32 Power Input kW 0.060 / 0.070...

  • Page 22: Electric Wiring Diagrams

    6-2. Electric Wiring Diagrams To avoid electrical shock hazard, be sure to Indoor Unit KPAV128C5 disconnect power before checking, servicing WARNING and/or cleaning any electrical parts.
  • Page 23 To avoid electrical shock hazard, be sure to Outdoor Unit GR129C5 disconnect power before checking, servicing WARNING and/or cleaning any electrical parts.
  • Page 24 To avoid electrical shock hazard, be sure to Outdoor Unit GR127L5 - GRV127L5 disconnect power before checking, servicing WARNING and/or cleaning any electrical parts.

  • Page 25: 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 26: Freeze Prevention

    7-2. 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 27: Outdoor Fan Speed Control

    7-3. Outdoor Fan Speed Control (for model GR/GRV127L5) Low ambient fan speed control This function protects the compressor from being damaged due to flowback of the liquid refrigerant to the compressor when the outdoor temperature is very low. When the air temp. thermistor (TH) on the outdoor unit detects a change in temperature, the controller (POW- CL128E) on the electrical component box activates to control the fan speed automatically.

  • Page 28: 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 29: 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 30 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. (Except for model SAP-CL128E) Measure resistance of outdoor fan •...
  • Page 31 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 control receiver on front of indoor Clean receiver.
  • Page 32 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 33: 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 34 Check transformer in outdoor unit. (for GR/GRV127L5 Only) • Measure resistance of primary and secondary winding. (TR2) Check fuse on outdoor PCB Ass'y. (for GR/GRV127L5 Only) Check fuse on outdoor PCB Ass’y • for continuity. If fuse blows, Measure resistance of primary •...
  • Page 35 8-3-3. Only compressor does not run. • Check compressor motor Overload relay is working. (Either OLR T or OLR A) capacitor. (C1) • Measure resistance of Temperature of compressor is abnormally high. compressor motor winding. Refrigerant gas shortage. Charge refrigerant gas (R22). •...

  • Page 36: 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 37: If A Sensor Is Defective

    8-5. If a sensor is defective. 8-5-1. Indoor coil temp. thermistor (TH1) is defective. A. Open When thermistor opens, the air conditioner will be in the following conditions as the controller tries to detect extremely low indoor coil temperature. In Cooling mode: Function of freeze prevention continues to work. That is, the controller turns both compressor and outdoor fan motor periodically ON and OFF for several minutes.

  • Page 38: 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 39: Checking Continuity Of Fuse On Pcb Ass'y

    9-2. Checking Continuity of Fuse on PCB Ass'y Fuse 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 40: 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 41: 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 42: 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 43 (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 44: 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 45 FILIBERTI S.p.A.  *DOODUDWH 9$  9LD 9DUHVH   ,WDO\ 7HO   )D[  (PDLO LWDOLD#DUJRFOLPDFRP...

This manual is also suitable for:

Gr129c5Gr127l5Grv127l5

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