Technibel MCAV127C5VAB Technical Data & Service Manual
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Summary of Contents for Technibel MCAV127C5VAB
- Page 1 TECHNICAL DATA & SERVICE MANUAL MCAV127C5VAB GR247M2C5TAA KPAV128C5TAA GR247M2C5TAA SPLIT SYSTEM AIR CONDITIONER MCAV127C5VAB Outdoor Unit KPAV128C5TAA Floor-Mounted GR247M2C5TAA Ceiling-Mounted 0.8180.051.0 04/2001...
- 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.
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Page 3: Table Of Contents
Table of Contents Page OPERATING RANGE SPECIFICATIONS Unit Specification Major Component Specifications Other Component Specifications DIMENSIONAL DATA REFRIGERANT FLOW DIAGRAM ELECTRICAL DATA 5-1 Electrical Characteristic 5-2 Electric Wiring Diagrams 5-3 Performance charts 5-4 Air throw distance chart INSTALLATION INSTRUCTIONS 6-1 Installation Site Selection 6-2 Place and space for Installation 6-3 Wiring instructions TROUBLESHOOTING... -
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 MCAV127C5VAB KPAV128C5TAA Outdoor Unit GRV247M2C5TAA Power Source 220 / 230 / 240 V Single phase 50 Hz Cooling Max.Capacity 6.85 (230V) BTU/h 23,400 No. of indoor unit 1 – Unit 2 – Units Capacity 3.50 / 3.55 / 3.60... -
Page 6: Major Component Specifications
2-2. Major Component Specifications Outdoor Unit GR247M2C5TAA Type Rotary (Hermetic) Compressor model…Q'ty / Code number C – R110H5H … 2 / 80619445 – S Nominal output 1,100 Compressor oil ... Amount SUNISO 4GSDT ... 550 x 2 Ω Coil resistance (Ambient temp. 25°C) C –... - Page 7 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 ...
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Page 8: Other Component Specifications
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 9: Dimensional Data
3. DIMENSIONAL DATA Outdoor Unit GR247M2C5TAA Narrow tube service valve ø6.35 (1/4") Wide tube service valve ø12.7 (1/2") Power supply wires connection Inter-unit wires connection Unit : mm... - Page 10 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 11 Indoor Unit 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 ø12.7 (1/2") Unit : mm...
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Page 12: Refrigerant Flow Diagram
4. REFRIGERANT FLOW DIAGRAM Indoor Unit : MCAV127C5VAB KPAV128C5TAA Outdoor Unit : GR247M2C5TAA Outdoor Unit Indoor Unit A Accumulator Wide tube O.D. ø12.7 mm Accumulator (1/2 ") Wide tube service valve Indoor Unit B Narrow tube Narrow tube service O.D. -
Page 13: Electrical Data
5. ELECTRICAL DATA 5-1. Electrical Characteristics Indoor Unit MCAV127C5VAB KPAV128C5TAA Outdoor Unit GR247M2C5TAA NOTE The values in the table below indicate the sum of indoor and outdoor units which are in running condition. 230 V Single phase 50Hz Number of Indoor Unit... -
Page 14: Electric Wiring Diagrams
5-2. Electric Wiring Diagram Outdoor Unit GR247M2C5TAA TO INDOOR TO INDOOR POWER UNIT B UNIT A SUPPLY TERMINAL PLATE (4P)X2 Ground OVERLOAD OVERLOAD RELAY 3 RELAY 1 OVERLOAD OVERLOAD RELAY 4 RELAY 2 COMPRESSOR COMPRESSOR FAN MOTOR MOTOR B MOTOR A... - Page 15 To avoid electrical shock hazard, be sure to disconnect power before checking, servicing Indoor Unit MCAV127C5VAB WARNING and/or cleaning any electrical parts. KPAV128C5TAA...
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Page 16: Performance Charts
5-3. Performance Charts Indoor Unit MCAV127C5VAB KPAV128C5TAA Outdoor Unit GR247M2C5TAA ■ 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 ..Points of Rating condition Black dots in above charts indicate the following rating conditions. -
Page 17: Air Throw Distance Chart
5-4. Air Throw Distance Chart Indoor Unit MCAV127C5VAB Room air temp. : 27°C Fan speed High Horizontal distance (m) Axis air verocity 0° Flap angle 30°... - Page 18 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°...
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Page 19: Installation Instructions
6. INSTALLATION INSTRUCTIONS 6-1. Installation Site Selection Tubing length (L) INDOOR Maximum Allowable Tubing Length(L) and UNIT Elevation Difference(H). IMPORTANT Less than elevation difference (H) between OUTDOOR The Multi-Split System outdoor unit should be installed as close to the 2 units UNIT the indoor units as possible. -
Page 20: Wiring Instructions
6-3. Wiring instructions WARNING WARNING This appliance must be grounded. Before starting installation of the multi-split system, Wiring System Diagram disconnect the gray tripolar cable of 2 meter length joined at the indoor units' terminal base in positions 220–240V L, N and Ground mark. Be sure to refer to the Wiring ~ 50Hz Disconnect Ground... -
Page 21: Troubleshooting
7. TROUBLESHOOTING 7-1. 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. 7-1-1. Check power supply wiring. Check that power supply wires are correctly connected to terminals No. 1 and No. 2 on the 3p terminal plate in the outdoor unit. -
Page 22: Air Conditioner Does Not Operate
7-2. Air conditioner does not operate. 7-2-1. 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 23 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 •...
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Page 24: Some Parts Of Air Conditioner Does Not Operate
7-3. Some part of air conditioner does not operate. 7-3-1. Only outdoor fan does not run. Check fan casing • Remove foreign for foreign matter matter or repair. Fan cannot on inside. be turned. Check fan rotation. • Turn fan gently once or twice by hand. -
Page 25: Air Conditioner Operates, But Abnormalities Are Observed
7-4. Air conditioner operates, but abnormalities are observed. 7-4-1. Poor cooling Check position of remote control unit. • Change position of • Cool air from air conditioner remote control unit. reaches position directly. Insulate both wide and Wide and narrow tubes between •... -
Page 26: Arrangement Of Electrical Components
8. ARRANGEMENT OF ELECTRICAL COMPONENT Outdoor Unit GR247M2C5TAA Electric Parts Compressor moter capacitor C3 Compressor moter capacitor C2 Relay ( RB ) Terminal plate ( 4P ) Relay ( RA ) ( To indoor unit B ) 1 2 3 4 1 2 3 4 Fan moter capacitor C1... -
Page 27: Checking Electrical Components
9. CHECKING ELECTRICAL COMPONENTS 9-1 Measurement of Insulation Ground wire Resistance Clip The insulation is in good condition if the resistance exceeds 2MΩ. Probe 9-1-1. Power Supply Wires Insulation Clamp the ground wire of the power supply wires with Fig.1 tester the lead clip of the insulation resistance tester and measure the resistance by placing a probe on either of... -
Page 28: Checking Motor Capacitor
9-2. Checking Motor Capacitor Remove the lead wires from the capacitor terminals, and then place a probe on the capacitor terminals as shown in Fig. 5. Observe the deflection of the pointer, setting Multimeter the resistance measuring range of the multimeter to the maximum value. -
Page 29: 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 30: 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 31: 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 32 (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.
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Page 33: 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 34 Via Varese, 90 - 21013 Gallarate - Va - Italy Tel. +39 0331 755111 - Fax +39 0331 776240 www.argoclima.it...