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Summary of Contents for Technibel GR120R
- Page 1 TECHNICAL DATA & SERVICE MANUAL Indoor Unit Outdoor Unit MCA120R GR120R MCA127R GR127R MCA135R GR135R SPLIT SYSTEM AIR CONDITIONER 0.8180.179.0 03/2001...
- 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 2-1 Unit Specification 2-2 Indoor Unit 2-3 Outdoor Unit 2-4 Other Component Specifications DIMENSIONAL DATA 3-1 Indoor Unit 3-2 Outdoor Unit REFRIGERANT FLOW DIAGRAM PERFORMANCE DATA 5-1 P Air Throw Distance Chart 5-2 Cooling Capacity 5-3 Heating Capacity ELECTRICAL DATA 6-1 Electrical Characteristic... -
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. Maximum 27°C D.B. 24°C D.B. / 18°C W.B. Heating Minimum 16°C D.B. -5°C D.B. -
Page 5: Specifications
2.SPECIFICATIONS 2-1 Unit Specification Indoor Unit MCA120R MCA127R MCA135R Model Unit Outdoor Unit GR120R GR127R GR135R Voltage Rating 230 V – 50 Hz Performance 2000 2300 2450 2800 3150 3550 Capacity Cooling / Heating BTU/h 6820 7840 8350 9550 10740... -
Page 6: Indoor Unit
2-2 Indoor Unit Model Unit MCA120R MCA127R MCA135R Controller PCB Part No WSA-LTR Controls Microprocessor Control circuit fuse 250 V – 3.15 A Remote Control Unit Fan & Fan Motor Type Cross-Flow 1- θ 95 / 617 Q.ty….Dia. and length Fan motor model….Q.ty KFV4Q-11HP-S-----------1 No of poles…rpm (230V,hi) -
Page 7: Outdoor Unit
2-3 Outdoor Unit Model Unit GR120R GR127R GR135R Compressor Type Rotary (Hermetic) Compressor model mm RH130VHAT RH154VHAT RH189VHAF Nominal output Compressor oil Diamond MS 56 ….Amount Ω Coil resistance (Ambient temp 25°C)+/- 7% 4.26 2.64 Ω 5.87 5.55 4.02 Safety device... -
Page 8: Other Component Specifications
2-4 Other Component Specifications ¢ Indoor unit Transformer (TR) TPN41-0001 Primary 230V 50HZ Rating Secondary 12 V 300mA Capacity Ω (at 21°C) Primary 495 Coil resistance Secondary 2.86 Thermal cut-off temp. 125°C Thermistor (Coil sensor) NTC - TERMISTOR Resistance 10 at 25°C KΩ... -
Page 9: Dimensional Data
3.DIMENSIONAL DATA 3-1 Indoor Unit... -
Page 10: Outdoor Unit
3-2 Outdoor Unit... -
Page 11: Refrigerant Flow Diagram
4.REFRIGERANT FLOW DIAGRAM... -
Page 12: Performance Data
5.PERFORMANCE 5-1 Air Throw Distance Chart COOLING Room ir temp 27°C Fan Speed High Horizontal distance (m) • Axis air velocity 0° • Flap angle 30° HEATING Room ir temp 20°C Fan Speed High Horizontal distance (m) • Axis air velocity 45°... - Page 13 COOLING Room ir temp 27°C Fan Speed High Horizontal distance (m) • Axis air velocity 0° • Flap angle 30° HEATING Room ir temp 20°C Fan Speed High Horizontal distance (m) • Axis air velocity 45° • Flap angle 60°...
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Page 14: Cooling Capacity
5-2 Cooling Capacity Indoor Unit MCA127R 230 V Single Phase 50 HZ Otdoor Unit GR127R RATING CAPACITY 2.45kW AIR FLOW RATE 420m³/h EVAPORATOR CONDENSER ENT.TEMP. °C OUTDOOR AMBIENT TEMP. °C W.B. D.B. 2,32 2,25 2,15 2,01 1,86 0,70 0,75 0,80 0,88 0,96 1,59... - Page 15 Indoor Unit MCA135R 230 V Single Phase 50 HZ Otdoor Unit GR135R RATING CAPACITY 3.15 AIR FLOW RATE m³/h EVAPORATOR CONDENSER ENT.TEMP. °C OUTDOOR AMBIENT TEMP. °C W.B. D.B. 2,99 2,90 2,76 2,59 2,39 0,95 1,01 1,09 1,19 1,30 2,05 2,01 1,94 1,86...
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Page 16: Heating Capacity
5-3 Heating Capacity • Point of Rating Condition Outdoor temperature ( °C D.B.) NOTE • Point of Rating condition Black dot in the chart indicate the following rating condition. Indoor: 20°C D.B. Outdoor: 7° C D.B. / 6°C W.B. Above characteristics indicate instantaneous operation, which does no take into account defrost operation. -
Page 17: Electrical Data
6.ELECTRICAL DATA 6-1 Electrical Characteristics COOLING Indoor Unit Outdoor Unit Complete Unit GR120R - GR127R - GR135R Fan Motor Fan Motor Compressor Performance at 230 V – 50 Hz 0.14 0.14 0.14 0.25 0.25 0.25 0.28 Rating Conditions Running Amps. -
Page 18: Electric Wiring Diagrams
6-2 Electric Wiring Diagrams To avoid electrical shock hazard, be sure to disconnect power before WARNING checking, servicing and/or cleaning any electrical parts Legend CM Compressor Motor C1,C2,C3 Capacitor FLP Louvers Motor FMO Outdoor Fan Motor FMI Indoor Fan Motor REC ASSY Remote Control PCB1 Indoor PC board TH1,TH2 Thermistor... -
Page 19: Function
7.FUNCTION 7-1 Cool Mode Operation (RT - SPT) [ over 3 min over 5 min COMP OFAN over 30 sec IFAN In Cool Mode, the operation of the Compressor (COMP), Outdoor Fan (OFAN) and Indoor Fan (IFAN) are determined by the difference between the Room Temperature (RT) and the Set Point Temperature (SPT) as in the graph above. -
Page 20: Heat Mode Operation
7-2 Heat Mode Operation (RT - SPT) [ COMP 30 sec IFAN Note 1 Note 2 The Heat Mode operation is similar to the Cool Mode operation. The COMP, OFAN and IFAN are mainly controlled by the value of (RT – SPT). In the graph above, the IFAN is operating in Auto Fan speed mode. Therefore, the IFAN speed changes automatically according to the (RT - SPT). -
Page 21: Auto Cool/Heat Mode Operation
7-3 Auto (Cool/Heat) Mode Operation (RT - SPT) [ COMP & OFAN Auto Heat Mode Auto Cool Mode Auto Heat Mode In Auto Mode, the unit switches between the Auto Cooling Mode and Auto Heating Mode automatically to maintain the room temperature (RT) at the set point temperature (SPT). -
Page 22: Dry Mode Operation
7-4 Dry Mode Operation (RT - SPT) [ Time [min] DRY-ON DRY-OFF IFAN 5 minutes COMP ON time COMP & OFAN 3.5 min Max 15 minutes Max 15 minutes 6 min (Note 2) (Note 1) In Dry Mode, the unit operates in a mild cool mode to lower the humidity of the room. In order to maintain a high efficiency in the drying operation without over lowering the room temperature excessively, the Dry Mode is different from the Cool Mode in two ways. -
Page 23: Protection Operation In Cool And Dry Operation Mode
7-6 Protection Operations in Cool and Dry Modes 1. Indoor Coil Defrost Protection The in-coil defrost protection can prevent the ice formation at the in-coil when the ambient temperature is low. ICT [ OFAN COMP IFAN t1 = 5 min minimum for each COMP starting t2 = OFAN cycling (alternate between ON and OFF every 30 sec) for 20 min maximum t3 = COMP and OFAN stop for 10 min minimum... - Page 24 2. Outdoor Coil High Pressure Protection The out-coil high pressure protection prevent the build up of high pressure at the out-coil during cooling operation. OCT [ COMP COMP is forced OFF OFAN follow operation of COMP OFAN OFAN is forced ON (Note 1) IFAN IFAN is forced LOW OPER...
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Page 25: Protection Operation In Heat Mode)
7-7 Protection Operations in Heat Mode 7-7-1 Outdoor Coil Deice Protection The deice process is controlled by an Ice Detection Algorithm (IDA). The IDA is an unique control algorithm incorporated to maintain optimal utilization of the heat pump capacity, especially in below-zero outdoor temperature condition. - Page 26 1st COMP start, OR deice complete Reset TLD cnt to 0 DTF = 0 IFAN/OFAN speed change Reset SCT cnt to 0 DTF = 0 TLD > TST SCT > SCD DDT = OCT - TempD DTF = 1 DDT and DTF information to main algorithm Explanation: The “Ice Forming Detection”...
- Page 27 7-7-2Indoor Coil High Pressure Protection in Heat Mode The in-coil high pressure protection prevent the build up of high pressure at the in-coil during heating operation. ICT [ COMP COMP is forced OFF OFAN Note: The operation temperatures shown as A and B in the chart differ by models. MCA120R MCA127R MCA135R...
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Page 28: Cool Draft Prevention
7-8 Cold Draft Prevention (Heating) • This function controls indoor fan speed so a strong draft of cold air will not blow out before the indoor heat exchange coil have sufficiently warmed up. • When 10 minutes has elapsed, the fan speed is automatically switched to set speed regardless of indoor heat exchange coil temperature. -
Page 29: Others Features
7-9-1 Sleep Function Room temperature is automatically controlled to compensate for body temperature variations while sleeping. This mode of operation is designed for maximal comfort in both COOL and HEAT modes. Unit is turned to SB 7-12 Hours Sleep operation after Sleep SPT+3 Cool, Dry modes... - Page 30 7-9-5 Manual Unit Control and LED indicators The push button switch and the LED indicators on the display panel let the user to control the unit operation without a remote controller. Their operations are provided below. LED indicators: 1. Lights up when the Air Conditioner is connected to power and STAND BY ready to receive the R/C commands INDICATOR...
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Page 31: Troubleshooting
8.TROUBLESHOOTING 8-1 Check before and after troubleshooting WARNING Hazardous voltage can cause ELECTRICAL SCHOCK or DEATH. Disconnect power or turn off circuit breaker before you start checking or servicing. 8-2 Check power supply wiring • Check that power supply wires are connected to terminals L and N on the terminal plate in the indoor unit. 8-3 Check indoor unit wiring •... -
Page 32: Air Conditioner Does Not Work
8-6 Air Conditioner does not operate 8-6-1 Circuit breaker trips (or fuse blows). when the circuit breaker is set to ON, it is tripped soon.(resetting is not possible) • There is possibility of ground fault • Check insulation resistance If resistance value is 2MΩor less, insulation is defective ( “NO”) WARNING Remove inter-unit wires from terminal platea in outdoor unit... - Page 33 B. Circuit breaker trips in several minutes after turning the air conditioner on. • There is a possibility of short circuit • Replace with suitable one Check capacity of circuit breaker. (lager capacity) Capacity of circuit breaker is suitable. In case of Heating operation: •...
- Page 34 D. Check fuse on the indoor PCB Ass’y • Measure resistance of indoor • Check fuse on indoor PCB and outdoor fan motor winding Ass’y for continuity • Measure resistance of • Check operation lamp to see if compressor motor winding light is ON Light is OFF •...
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Page 35: Some Parts Of Air Conditioner Does Not Operate
B Check PCB Ass’y in either indoor or outdoor unit • Indoor PCB Ass’y is defective 8-6-4 Only indoor unit does not run • Indoor PCB Ass’y is defective 8-7 Some part of air conditioner does not operate 8-7-1 Only indoor fan does not run Fan cannot Check fan casing be turned... - Page 36 8-7-3 Only outdoor fan does not run Fan cannot Check fan casing be turned Remove foreign foreign matter on matter or repair • Check fan rotation inside Turn fan gently once or twice by hand Fan motor burnout Repair or replace or foreign matter in bearings •...
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Page 37: Air Conditioner Operates, But Abnormalities Are Observed
8-8 Air conditioner operates, but abnormalities are observed 8-8-1 Operation does not switch from HEAT to COOL (or COOL to HEAT). • Reciver in lamp Ass’y may be Remote control unit may be detective. detective. • Measure resistance of 4-way valve’s winding COOL4 HEAT •... -
Page 38: If A Sensor Is Defective
8-9 If a sensor is defective 8-9-1 ICT (indoor coil sensor) OCT(outdoor coil sensor) RAT (room ambient temperatur) are defetive. • • Stand by lamp on front side of indoor Thermistor ICT and OCT and RAT are unit is flashing on and off. (*) defective •... -
Page 39: Checking Electrical Components
9.CHECKING ELECTRICAL COMPONENTS 9-1 Measurement of Insulatipon Resisatnce The insulation is good condition if the resistance exceeds 2MΩ 9-1-1Power Supply Wires Clamp the grounding terminal of the power plug with a lead clip of the insulation resistance tester and measure the resistance by placing a probe on either of the two NOTE power terminals.(Fig 1) -
Page 40: Checking Motor Capacitor
9-2-1 Measurement continuity of the Fuse The fuse is situated on Indoor PCB Ass’y (Fig 5) Disconnect the fuse from PCB Ass’y. Then check if there is continuity on the fuse(Fig 6) 9-2-2 Measure the Capacity of the Run Capacitor Disconnect the lead wires of the desired electric part from terminal plate. - Page 41 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...
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