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FLOOR AND CEILING TYPE AIR CONDITIONERS
SERVICE MANUAL
Wireless type
Models
MCF-C13UV-
MCF-C18UV-
MCF-C24UV-
(When installed on the floor)
(When installed on the ceiling)
·MUCF-C13UV-
(WH)
E1
·MUCF-C18UV-
(WH)
E1
·MUCF-C24UV-
(WH)
E1
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················4
3. SPECIFICATION·················································6
4. NOISE CRITERIA CURVES ·······························7
5. OUTLINES AND DIMENSIONS ·························9
6. WIRING DIAGRAM···········································11
7. REFRIGERANT SYSTEM DIAGRAM ··············14
8. PERFORMANCE CURVES ······························16
9. MICROPROCESSOR CONTROL ····················24
10. SERVICE FUNCTIONS·····································30
11. TROUBLESHOOTING ······································31
12. DISASSEMBLY INSTRUCTIONS·····················37
13. PARTS LIST······················································43
14. OPTIONAL PARTS ······················BACK COVER
No. OB299
HFC
utilized
R407C
E1
E1
E1
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Related Manuals for Mitsubishi Electric MCF-C13UV-E1
Summary of Contents for Mitsubishi Electric MCF-C13UV-E1
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Page 1: Table Of Contents
FLOOR AND CEILING TYPE AIR CONDITIONERS No. OB299 utilized R407C SERVICE MANUAL Wireless type Models MCF-C13UV- ·MUCF-C13UV- (WH) MCF-C18UV- ·MUCF-C18UV- (WH) MCF-C24UV- ·MUCF-C24UV- (WH) (When installed on the floor) CONTENTS 1. TECHNICAL CHANGES ····································2 2. PART NAMES AND FUNCTIONS······················4 3. SPECIFICATION·················································6 4. -
Page 2: Technical Changes
TECHNICAL CHANGES INFORMATION FOR THE AIR CONDITIONER WITH R407C REFRIGERANT This room air conditioner adopts HFC refrigerant (R407C) which never destroy the ozone layer. Pay attention to following points. 1 Take sufficient care not to allow water and other contaminations to enter the R407C refrigerant during storage and installation, since it is more susceptible to contaminations than HCFC (R22) refrigerant. - Page 3 1.Tools dedicated for the air conditioner with R407C refrigerant The following tools are required for R407C refrigerant. Some R22 tools can be substituted for R407C tools. Do not use tools that are used with R22 refrigerant in order to avoid mixing oils. Description R407C tools Can R22 tools be used?
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Page 4: Part Names And Functions
PART NAMES AND FUNCTIONS MCF-C13UV - MCF-C18UV - MCF-C24UV - INDOOR UNIT ACCESSORIES Item Q'ty Installation plate Unit fixing screw (When installed on the floor) 5 o 12mm Vertical vanes Wireless remote Horizontal vane controller Remote controller Operation indicator lamp holder Fixing screw for Receiving section... - Page 5 MCF-C13UV - MCF-C18UV - MCF-C24UV - REMOTE CONTROLLER Signal transmitting section Operation display section OPERATE /STOP (ON /OFF)button ON/OFF WARM COOL TEMPERATURE buttons Open the front lid. Open the front lid. CLOCK ON/OFF WARM COOL FAN SPEED CONTROL button STOP OFF-TIMER button I FEEL COOL VANE...
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Page 6: Specification
SPECIFICATION Indoor model MCF-C18UV - MCF-C13UV - MCF-C24UV - Function Cooling Cooling Cooling Single phase Single phase Single phase Power supply 230V, 50Hz 230V, 50Hz 230V, 50Hz Capacity 3.55 Dehumidification Air flow(High/Med. /Low 840/696 /570 K /h 678/582 /474 840/744 /642 Power outlet Running current... -
Page 7: Noise Criteria Curves
NOISE CRITERIA CURVES MCF-C13UV - MUCF-C13UV - SPL(dB LINE NOTCH SPL(dB LINE NOTCH High High Test conditions, Test conditions, Cooling : Dry-bulb temperature 35: Wet-bulb temperature (24:) Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:\ NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40... - Page 8 MCF-C24UV - MUCF-C24UV - SPL(dB LINE SPL(dB LINE NOTCH NOTCH High High Test conditions, Test conditions, Cooling : Dry-bulb temperature 35: Wet-bulb temperature (24:) Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:\ NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 APPROXIMATE...
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Page 9: Outlines And Dimensions
OUTLINES AND DIMENSIONS MCF-C13UV - MCF-C18UV - Unit: mm MCF-C24UV - INDOOR UNIT REQUIRED SPACE 80.8 112.8 (When installed on the floor) 500mm or more 500mm or more (When installed on the ceiling) 500mm or more 1100 Gas line [ 12.7 (MCF-C13UV) Liquid line [ 15.88 (MCF-C18/C24UV) [ 6.35 (MCF-C13/C18UV) - Page 10 Unit: mm MUCF-C18UV - MUCF-C24UV - REQUIRED SPACE OUTDOOR UNIT Drainage 3holes [33 Service panel Liquid refrigerant pipe joint Refrigerant pipe (flared) [ 6.35(MUCF-C18UV) [ 9.52(MUCF-C24UV) Gas refrigerant pipe joint Refrigerant pipe (flared) [ 15.88...
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Page 11: Wiring Diagram
WIRING DIAGRAM MCF-C13UV - MODEL WIRING DIAGRAM INDOOR UNIT CIRCUIT BREAKER GRN/YLW RT12 HIC1 HIC1 LDCOM LDC11 POWER SUPPLY LDC12 ~/N 230V LDFH SR144 50Hz TRANS CN201 LDFM SR143 LDFL SR142 GRN/YLW ELECTRONIC CONTROL P.C BOARD TO OUTDOOR GRN/YLW UNIT CONNECTING 230V~ DISP/... - Page 12 MCF-C18UV - MODEL WIRING DIAGRAM INDOOR UNIT CIRCUIT BREAKER GRN/YLW RT12 HIC1 HIC1 LDCOM LDC11 POWER SUPPLY LDC12 ~/N 230V LDFH SR144 50Hz TRANS CN201 LDFM SR143 LDFL SR142 GRN/YLW ELECTRONIC CONTROL P.C BOARD TO OUTDOOR GRN/YLW UNIT CONNECTING 230V~ DISP/ SW/THERMO REMOTE...
- Page 13 MCF-C24UV - MODEL WIRING DIAGRAM INDOOR UNIT CIRCUIT BREAKER GRN/YLW RT12 HIC1 LDCOM LDC11 POWER SUPPLY LDC12 ~/N 230V LDFH SR144 50Hz TRANS CN201 LDFM SR143 GRN/YLW LDFL SR142 230V~ TO OUTDOOR ELECTRONIC CONTROL P.C BOARD GRN/YLW UNIT CONNECTING 230V~ DISP/ SW/THERMO REMOTE...
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Page 14: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM Unit:mm MUCF-C13UV - MCF-C13UV - Refrigerant pipe INDOOR UNIT OUTDOOR UNIT [12.7 (With heat insulation) Indoor Stop valve heat (with service port) exchanger Outdoor heat exchanger Flared Indoor coil Distributor Compressor connection thermistor RT12 Room temperature Stop valve Strainer Capillary tube thermistor... - Page 15 Unit:mm MUCF-C24UV - MCF-C24UV - Refrigerant pipe INDOOR UNIT OUTDOOR UNIT {15.88 (With heat insulation) Indoor Stop valve heat (with service port) exchanger Outdoor heat exchanger Flared Indoor coil Distributor Compressor connection thermistor RT12 Room temperature Stop valve Strainer thermistor RT11 Capillary tube Refrigerant pipe...
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Page 16: Performance Curves
PERFORMANCE CURVES MCF-C13UV - MUCF-C13UV - MCF-C18UV - MUCF-C18UV - MCF-C24UV - MUCF-C24UV - The standard data contained in these specifications apply only to the operation of the air conditioner under normal condition. Operating conditions vary according to the areas where these units are installed. The following information has been provided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve. - Page 17 OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT COOL operation 1 Both indoor and outdoor units are under the same temperature/humidity condition. Dry Bulb temperature ( Relative humidity ( ˚C 2 Air flow should be set at MAX.. 3 The unit of pressure has been changed to MPa on the international system of units(SI unit system). f [Gauge]) The conversion factor is : 1(MPa [Gauge]) =10.2(kgf/f MUCF-C13UV-...
- Page 18 PERFORMANCE DATA COOL operation MCF-C13UV - : MUCF-C13UV - CAPACITY:3.55(kW) SHF:0.70 INPUT:1400(W) OUTDOOR DB(:) INDOOR INDOOR DB(:) WB(:) SHC SHF SHC SHF SHC SHF INPUT INPUT INPUT INPUT SHC SHF 4.17 2.17 0.52 1120 3.99 2.08 0.52 1176 3.83 1.99 0.52 1232 3.69 1.92 0.52 1288...
- Page 19 PERFORMANCE DATA COOL operation MCF-C13UV - : MUCF-C13UV - CAPACITY:3.55(kW) SHF:0.70 INPUT:1400(W) OUTDOOR DB(:) INDOOR INDOOR DB(:) WB(:) SHC SHF SHC SHF SHC SHF INPUT INPUT INPUT SHC SHF INPUT 3.48 1.81 0.52 1372 3.20 1.66 0.52 1456 3.07 1.60 0.52 1484 2.95 1.53 0.52 1512...
- Page 20 PERFORMANCE DATA COOL operation MCF-C18UV - : MUCF-C18UV - CAPACITY:5.00(kW) SHF:0.68 INPUT:2180(W) OUTDOOR DB(:) INDOOR INDOOR DB(:) WB(:) INPUT INPUT INPUT INPUT SHC SHF SHC SHF SHC SHF SHC SHF 5.88 2.94 0.50 1744 5.63 2.81 0.50 1831 5.40 2.70 0.50 1918 5.20 2.60 0.50 2006...
- Page 21 PERFORMANCE DATA COOL operation MCF-C18UV - : MUCF-C18UV - CAPACITY:5.00(kW) SHF:0.68 INPUT:2180(W) OUTDOOR DB(:) INDOOR INDOOR DB(:) WB(:) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT INPUT SHC SHF 4.90 2.45 0.50 2136 4.50 2.25 0.50 2267 4.33 2.16 0.50 2311 4.15 2.08 0.50 2354...
- Page 22 PERFORMANCE DATA COOL operation MCF-C24UV - : MUCF-C24UV - CAPACITY:6.40(kW) SHF:0.61 INPUT:2920(W) OUTDOOR DB(:) INDOOR INDOOR DB(:) WB(:) INPUT INPUT INPUT SHC SHF SHC SHF SHC SHF INPUT SHC SHF 7.52 3.23 0.43 2336 7.20 3.10 0.43 2453 6.91 2.97 0.43 2570 6.66 2.86 0.43 2686...
- Page 23 PERFORMANCE DATA COOL operation MCF-C24UV - : MUCF-C24UV - CAPACITY:6.40(kW) SHF:0.61 INPUT:2920(W) OUTDOOR DB(:) INDOOR INDOOR DB(:) WB(:) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT INPUT SHC SHF 6.27 2.70 0.43 2862 5.76 2.48 0.43 3037 5.54 2.38 0.43 3095 5.31 2.28 0.43 3154...
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Page 24: Microprocessor Control
MICROPROCESSOR CONTROL MCF-C13UV - MUCF-C13UV - WIRELESS REMOTE CONTROLLER MCF-C18UV - MUCF-C18UV - MCF-C24UV - MUCF-C24UV - Signal transmitting section Once the operation mode are set, the same operation mode can be repeated by simply turning the OPERATE/STOP (ON/OFF) button ON. Operation display section Indoor unit receives the signal with a beep tone. - Page 25 (4) The initial set temperature is decided by the initial room temperature. Model Initial room temperature Initial set temperature 26°C or more 24°C COOL mode of “I FEEL CONTROL” Initial room temperature 25°C to 26°C minus 2°C DRY mode of Initial room temperature more than 13°C, less than 25°C “I FEEL CONTROL”...
- Page 26 Operation time chart Example Compressor and Outdoor fan motor (continuously at set speed) Indoor fan motor 9-1-2. DRY mode of “I FEEL CONTROL” The system for dry operation uses the same refrigerant circuit as the cooling circuit. The compressor and the indoor fan are controlled by the temperature. By such controls, indoor flow amounts will be reduced in order to lower humidity without much room temperature decrease.
- Page 27 9-3. DRY ( ) OPERATION (1) Press OPERATE/STOP (ON/OFF) button. OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone. (2) Select DRY mode with the OPERATION SELECT button. (3) The microprocessor reads the room temperature and determines the set temperature. Set temper- ature is as shown on the right chart.
- Page 28 (4) VANE AUTO ( ) mode In VANE AUTO mode, the microprocessor automatically determines the vane angle and operation to make the optimum room-temperature distribution. 1.In COOL and DRY operation Vane angle is fixed to position 1. 2.In FAN operation Vane angle is fixed to position 4.
- Page 29 PROGRAM TIMER The OFF timer and ON timer can be used in combination. “ ” and “ ” display show the order of the OFF timer and ON timer operation. (Example 2) The current time is 11:00 AM. (Example 1) The current timer is 8:00 PM. The unit turns on at 5:00 PM, and off at 9:00 PM.
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Page 30: Service Functions
SERVICE FUNCTIONS MCF-C13UV - MUCF-C13UV - MCF-C18UV - MUCF-C18UV - MCF-C24UV - MUCF-C24UV - 10-1. TIMER SHORT MODE For service, set time can be shortened by short circuit of JPG and JPS on the indoor electronic control P.C. board. The time will be shortened as follows.(Refer to page 36.) Set time : 1 minute 1-second Set time : 3 minute... -
Page 31: Troubleshooting
TROUBLESHOOTING MCF-C13UV - MUCF-C13UV - MCF-C18UV - MUCF-C18UV - MCF-C24UV - MUCF-C24UV - 11-1. Cautions on troubleshooting 1. Before troubleshooting, check the following: (1) Check the power supply voltage. (2) Check the indoor/outdoor connecting wire for mis-wiring. 2. Take care the following during servicing. (1) Before servicing the air conditioner, be sure to first turn off the remote controller to stop the main unit, and then after confirming the horizontal vane is closed, turn off the breaker and / or disconnect the power plug. - Page 32 11-2. Instruction of troubleshooting Start Indoor unit OPERATION When the remote Indoor unit doesn't receive INDICATOR controller is operates. the signal from lamp on the indoor pressed Outdoor unit remote controller. unit is flashing or when the doesn't on and off. EMERGENCY operate.
- Page 33 2. Trouble criterion of main parts MCF-C13UV - MUCF-C13UV - MCF-C18UV - MUCF-C18UV - MCF-C24UV - MUCF-C24UV - Part name Check method and criterion Figure Room Measure the resistance with a tester. temperature (Part temperature 10°C ~ 30°C) thermistor (RT11) Indoor coil Normal Abnormal...
- Page 34 Indoor fan does not operate. Check of indoor fan motor Turn OFF power supply. Check connector (Fan motor) visually. Is soldered point of the connector Are lead wires connected? correctly soldered? Re-connect the lead Re-solder it. wires. Disconnect lead wires from connector (Fan motor)on indoor electronic control P.C. board. Measure resistance between lead wires No.1 and No.4 and then No.3 and No.4 of the fan motor.
- Page 35 The unit doesn’t operate with the remote controller. Also, the OPERATION INDICATOR lamp doesn’t light up by pressing the EMERGENCY OPERATION switch. Check of indoor electronic control P.C. board Replace the fuse. Is fuse(F11)blown? Trouble of the indoor electronic Check both “parts side” and control P.C.
- Page 36 TEST POINT DIAGRAM AND VOLTAGE MCF-C13UV - MCF-C18UV - MCF-C24UV - Indoor electronic control P.C. board Fan motor power supply 230V AC (Refer to page 38) Med. Low High Fuse 250V AC 3.15A Power supply input 230V AC 12V DC –...
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Page 37: Disassembly Instructions
DISASSEMBLY INSTRUCTIONS <"Terminal with lock mechanism" Detaching points> In the case of terminal with lock mechanism, detach the terminal as shown below. 1Slide the sleeve. 1Hold the sleeve, and 2Pull the terminal while pull out the terminal pushing the locking slowly. - Page 38 OPERATING PROCEDURE PHOTOS 3. Removing the indoor heat exchanger. Photo 5 (1) Remove the grille. (Refer to 1(1) (2)) (2) Remove the screws on both sides and in front of the front panel. (Photo 5) (3) Remove the screws of the nozzle assembly. (Photo 6) (4) Remove the electrical box.
- Page 39 12-2. MUCF-C13UV - OUTDOOR UNIT OPERATING PROCEDURE PHOTOS 1. Removing the cabinet Photo 1 (1) Remove the screws fixing the top panel. Screws of front panel and motor support (2) Remove the screw fixing the service panel. (3) Remove the screws fixing the cabinet. (4) Remove the screws fixing the front panel and motor sup- port.
- Page 40 OPERATING PROCEDURE PHOTOS Photo 5 3. Removing the propeller fan and the outdoor fan motor Set screws for outdoor fan motor (1) Remove the cabinet. (Refer to 1.) Hook Lead clamps (2) Remove the propeller fan nut. Propeller fan (3) Remove the propeller fan. NOTE : Loose the propeller fan in the rotating direction for removal.
- Page 41 12-3. MUCF-C18UV- MUCF-C24UV- OUTDOOR UNIT OPERATING PROCEDURE PHOTOS 1. Removing the cabinet Photo 1 (1) Remove the screws fixing the cabinet. (2) Remove the screw fixing the service panel. (3) Remove the service panel, and remove the screw from the insides. (4) Remove the cabinet.
- Page 42 OPERATING PROCEDURE PHOTOS 3. Removing the outdoor fan motor Clamp Connector Photo 4 (1) Remove the cabinet. (Refer to 1) (2) Disconnect the connector to remove the clamp of fan motor lead wire. (3) Remove the propeller fan nut and remove the propeller fan. (4) Remove screws fixing the fan motor.
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Page 43: Parts List
PARTS LIST MCF-C13UV - (WH) MCF-C18UV - (WH) MCF-C24UV - (WH) 13-1. INDOOR UNIT STRUCTURAL PARTS Part number that is circled is not shown in the illustration. Q'ty/unit Symbol in Wiring Part No. Part name Remarks MCF-C13UV- MCF-C18UV- MCF-C24UV- Diagram (WH) (WH) (WH) - Page 44 MCF-C13UV - (WH) MCF-C18UV - (WH) MCF-C24UV - (WH) 13-3. ACCESSORY AND 13-2. INDOOR UNIT REMOTE CONTROLLER ELECTRICAL PARTS AND FUNCTIONAL PARTS 13-2. INDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS Part numbers that are circled are not shown in the illustration. Q'ty/unit Symbol Part No.
- Page 45 MUCF-C13UV - 13-4. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS Part numbers that are circled are not shown in the illustration. Q'ty/unit Symbol in Wiring Part name Remarks Part No. MUCF-C13UV- Diagram E02 336 630 OUTDOOR HEAT EXCHANGER E02 336 515 MOTOR SUPPORT E02 336 501...
- Page 46 MUCF-C18UV - MUCF-C24UV - 13-5. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS...
- Page 47 13-5. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS Part numbers that are circled are not shown in the illustration. Q'ty/unit Symbol Part No. Part name Remarks in Wiring MUCF-C18UV- MUCF-C24UV- Diagram E02 141 232 CABINET E02 141 521 GRILLE(OUT) E02 141 501 PROPELLER FAN...
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Page 48: Optional Parts
MCF-C18UV- MAC - 1700 DF MCF-C24UV- HEAD OFFICE: MITSUBISHI DENKI BLDG.,2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN C C Copyright 2002 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD New publication, effective Apr. 2002 Distributed in Apr. 2002. No.OB299 22 Specifications subject to change without notice. - Page 49 Related Links Model Number: MUCF-C13UV MUCF-C13-24UV_Parts_Catalog_(OB299) MUCF-C13-24UV_Service_Manual_(OB299)