Subscribe to Our Youtube Channel
Related Manuals for Technibel MCAV77C5
Summary of Contents for Technibel MCAV77C5
- Page 1 7(&+1,&$/ 6(59,&( 0$18$/ MCAV77C5 GRV77L5 MCAV97C5 GRV97L5 MCAV127C5 GRV127L5 63/,7 6<67(0 $,5 &21',7,21(5 0.8180.044.0 05/99...
- 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....................5 2-3. Other Component Specifications....................11 3. DIMENSIONAL DATA..........................12 4. REFRIGERANT FLOW DIAGRAM ......................15 5. PERFORMANCE DATA 5-1. Performance charts ........................17 5-2. -
Page 4: Operating Range
1. OPERATING RANGE For LOW AMBIENT cooling models : GRVXXXL5 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. –15°C D.B. -
Page 5: Specifications
2. SPECIFICATIONS 2-1. Unit Specifications Indoor Unit MCAV77C5 Outdoor Unit GRV77L5 Power Source 220–240V ~ 50Hz Voltage rating 220/230/240 V Performance Cooling Capacity 2.05 2.05 2.10 BTU/h 7,000 7,000 7,200 Air circulation (High) Moisture removal (High) Liters/h Electrical Rating Cooling... - Page 6 Indoor Unit MCAV97C5 Outdoor Unit GRV97L5 Power Source 220–240V ~ 50Hz Voltage rating 220/230/240 V Performance Cooling Capacity 2.60 2.60 2.65 BTU/h 8,900 8,900 9,000 Air circulation (High) Moisture removal (High) Liters/h Electrical Rating Cooling Available voltage range 198 ~ 264 Running amperes Power input Power factor...
- Page 7 Indoor Unit MCAV127C5 Outdoor Unit GRV127L5 Power Source 220–240V ~ 50Hz Voltage rating 220/230/240 V Performance Cooling Capacity 3.45 3.45 3.50 BTU/h 11,800 11,800 11,900 Air circulation (High) Moisture removal (High) Liters/h Electrical Rating Cooling Available voltage range 198 ~ 264 Running amperes Power input 1,320...
-
Page 8: Major Component Specifications
2-2. Major Component Specifications 2-2-1. Indoor Unit Indoor Unit MCAV77C5 Controller PCB 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 ... - Page 9 Indoor Unit MCAV97C5 Controller PCB 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 10 Indoor Unit MCAV127C5 Controller PCB 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 2-2-2. Outdoor Unit Outdoor Unit GRV77L5 Controller PCB Part No. POW-CL128E Control circuit fuse 250 V 3.15 A Compressor Type Rotary (Hermetic) Compressor model C-1RN60H5H 80206045 Nominal output Compressor oil ... Amount FV68S ... 370 Ω Coil resistance (Ambient temp. 25°C) C–R : 4.66 C–S : 8.89 Safety devices...
- Page 12 Outdoor Unit GRV97L5 Controller PCB Part No. POW-CL128E Control circuit fuse 250 V 3.15 A Compressor Type Rotary (Hermetic) Compressor model C-RN80H5B 80228235 Nominal output Compressor oil ... Amount FV68S ... 500 Ω Coil resistance (Ambient temp. 25°C) C–R : 3.38 C–S : 7.49 Safety devices Type...
- Page 13 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 14: Other Component Specifications
2-3. Other Component Specifications Indoor Unit MCAV77C5 - MCAV97C5 - MCAV127C5 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 15: Dimensional Data
3. DIMENSIONAL DATA Indoor Unit MCAV77C5 MCAV97C5 MCAV127C5 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 16 Outdoor Unit GRV77L5 GRV97L5 Air intake Air discharge 4 – ø12 holes 4 – ø3.1 holes N O T E <Location of Service Valve> Service valves are located behind the side panel. See the illustration below ( * ). Wide tube service valve ø9.52 (3/8") Narrow tube service valve ø6.35 (1/4")
- Page 17 Outdoor Unit : 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 18: Refrigerant Flow Diagram
4. REFRIGERANT FLOW DIAGRAM MCAV77C5 GRV77L5 Indoor Unit MCAV97C5 Outdoor Unit GRV97L5 Indoor Unit Outdoor Unit Wide tube service Compressor Accumulator Wide tube valve O.D. ø9.52 mm (3/8 ") Narrow tube service Narrow tube valve Strainer Capillary tube O.D. ø6.35 mm... - Page 19 Indoor Unit MCAV127C5 Outdoor Unit 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. ø6.35 mm (1/4") Check port Insulation of Refrigerant Tubing IMPORTANT Because capillary tubing is used in the outdoor unit, both the...
-
Page 20: Performance Data
5. PERFORMANCE DATA 5-1. Performance charts Indoor Unit MCAV77C5 Indoor Unit AWR509CL Outdoor Unit GRV77L5 Outdoor Unit AER509SC or AER509SCL ■ Cooling Characteristics ■ Cooling Characteristics Indoor inlet air Indoor inlet air D.B. temp. (°C) D.B. temp. (°C) 19.4 19.4 Outdoor inlet air D.B. - Page 21 Indoor Unit MCAV127C5 Outdoor Unit 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 ..Points of Rating condition Black dots in above charts indicate the following rating conditions. Cooling: Indoor air temperature 27°C D.B./ 19°C W.B.
-
Page 22: Air Throw Distance Chart
5-2. Air Throw Distance Chart Indoor Unit MCAV77C5 Room air temp. : 27°C Fan speed High Horizontal distance (m) Axis air verocity 0° Flap angle 30°... - Page 23 Indoor Unit MCAV97C5 Room air temp. : 27°C Fan speed High Horizontal distance (m) Axis air verocity 0° Flap angle 30° Indoor Unit MCAV127C5 Room air temp. : 27°C Fan speed High Horizontal distance (m) Axis air verocity 0° Flap angle 30°...
-
Page 24: Cooling Capacity
5-3. Cooling Capacity Indoor Unit MCAV77C5 Outdoor Unit GRV77L5 240V Single Phase 50Hz RATING CAPACITY 2.10 kW AIR FLOW RATE 430 m EVAPORATOR CONDENSER ENT. TEMP. °C OUTDOOR AMBIENT TEMP. °C W.B. D.B. 2.12 2.02 1.93 1.84 1.73 1.59 0.45 0.49... - Page 25 Indoor Unit MCAV97C5 Outdoor Unit GRV97L5 240V 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 0.64 0.70 0.75 0.80 0.85 0.91 1.84...
- Page 26 Indoor Unit MCAV127C5 Outdoor Unit GRV127L5 240V Single Phase 50Hz RATING CAPACITY 3.50 kW AIR FLOW RATE 490 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 0.96 1.04 1.11 1.19 1.29 1.39 2.31...
-
Page 27: Electrical Data
6. ELECTRICAL DATA 6-1. Electrical Characteristics Indoor Unit MCAV77C5 Outdoor Unit GRV77L5 Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 220 – 240V ~ 50Hz Rating Conditions Running Amps. 0.11 / 0.12 0.23 / 0.25 Power Input kW 0.023 / 0.027... -
Page 28: Electric Wiring Diagrams
6-2. Electric Wiring Diagrams To avoid electrical shock hazard, be sure to Indoor Unit MCAV77C5 - MCAV97C5 MCAV127C5 disconnect power before checking, servicing WARNING and/or cleaning any electrical parts. - Page 29 To avoid electrical shock hazard, be sure to Outdoor Unit GRV77/97L5 disconnect power before checking, servicing WARNING and/or cleaning any electrical parts.
- Page 30 To avoid electrical shock hazard, be sure to Outdoor Unit GRV127L5 disconnect power before checking, servicing WARNING and/or cleaning any electrical parts.
-
Page 31: 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 32: 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 33: 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 34: Outdoor Fan Speed Control
7-4. Outdoor Fan Speed Control 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 35: 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 36: 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 37 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 models AERXXXSCL) Measure resistance of outdoor fan •...
- Page 38 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 39 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 40: 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 41 Check transformer in outdoor unit. • Measure resistance of primary and secondary winding. (TR2) Check fuse on outdoor PCB Ass'y. Check fuse on outdoor PCB Ass’y • for continuity. If fuse blows, Measure resistance of primary • (TR2) winding of transformer. Measure resistance of outdoor •...
- Page 42 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. Recover refrigerant. (R407C) •...
-
Page 43: 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 44: 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. Alarm Signal (*) NOTE Operation lamp on the front side of the indoor unit will flash on and off when the indoor coil thermistor is defective. -
Page 45: Refrigerant R407C: Special Precautions When Servicing The Unit
9. REFRIGERANT R407C : SPECIAL PRECAUTIONS WHEN SERVICING UNIT 9-1. Characteristics of new refrigerant R407C 9-1-1. What is new refrigerant R407C R407C is a new refrigerant that contains three types of non-azeotropy-type mixed refrigerant which does not adversely affect the Earth's ozone layer. Its refrigeration capacity and energy efficiency are about the same level as the conventional refrigerant R22 9-1-2. -
Page 46: Tools Specifically For R407C
9-3. Tools specifically for R407C For servicing, use the following tools for R407C Tool Distinction Tool Name • Gauge manifold • Charging hose • Gas leak detector • Refrigerant cylinder • Charging cylinder Tools specifically for R407C • Refrigerant recovery unit •... -
Page 47: In Case Of Compressor Malfunction
9-5. In case of compressor malfunction Should the compressor malfunction, be sure to replace compressor as quickly as CAUTION possible. Use only the tools indicated exclusively for R407C. See "10-3. Tools specifically for R407C". 9-5-1.Procedure for replacing compressor (1) Recovering refrigerant •... - Page 48 (5) Recharging Valve • Be sure to charge the specified amount of refrigerant in liquid state using the service port of wide tube service valve. The proper amount is listed on the unit's nameplate. When the entire amount cannot be charged all at once, charge gradually while operating the unit in Cooling Operation.
-
Page 49: In Case Refrigerant Is Leaking
9-6. In case refrigerant is leaking Never attempt to charge additional refrigerant when refrigerant has been leaking CAUTION from the unit. Follow the procedure described below to locate points of leaks and carry out repairs, then recharge the refrigerant. (1) Detecting Leaks •... - Page 50 (6) Recharging Valve • Be sure to charge the specified amount of refrigerant in liquid state using the service port of wide tube service valve. The proper amount is listed on the unit's nameplate. When the entire amount cannot be charged all at once, charge gradually while operating the unit in Cooling Operation.
-
Page 51: Charging Additional Refrigerant
9-7. Charging additional refrigerant 9-7-1.When tubes are extended • Observe the proper amount of refrigerant as stated in this service manual or the installation manual that came with the indoor unit. Charge additional refrigerant in liquid state. Never charge additional refrigerant if refrigerant is leaking from the unit. Follow CAUTION instructions given in "10-6. -
Page 52: Checking Electrical Components
10. CHECKING ELECTRICAL COMPONENTS power plug 10-1. Measurement of Insulation (Local supply) Resistance Ground The insulation is in good condition if the resistance exceeds 2MΩ. probe Insulation 10-1-1. 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 53: Checking Continuity Of Fuse On Pcb Ass'y
10-2. 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 54 In order to carry on a constant improvement, our products can be modified without prior notice. Per garantire un costante miglioramento dei nostri prodotti, ci riserviamo di modificarli senza preavviso. Par souci d’amélioration constante, nos produits peuvent être modifiés sans préavis. Unsere Produkte werden laufend verbessert und können Vorankündigung abgeändert Werden.
Need help?
Do you have a question about the MCAV77C5 and is the answer not in the manual?
Questions and answers