Page 1 SM_ONE-WAY CASSETTE(GA)_R410A_3D INV_US1_NA_2207 SERVICE MANUAL...
Page 2 Table of Contents §. Safety Precautions Precautions Information servicing §. Model Reference & External Appearance Model Refer ence External Appearance §. Indoor Unit Indoor Unit - One-way Cassette T ype §. Outdoor Unit Dimensional Drawings Service Space Capacity Correction Factor for Height Di rence Noise Criterion Curves Refrigerant Cycle Diagrams...
Page 3 Table of Contents §. Troubleshooting Safety Caution General Troubleshooting Information Inquiry Error Diagnosis and Troubleshooting Without Error Code Quick Maintenance by Err or Code Troubleshooting by Error Code Check Pr ocedures §. Indoor Unit Disassembly Indoor Unit - One-way Cassette T ype §.
Page 5 To prevent personal injury, or property or unit damage, While unpacking be careful of sharp edges around adhere to all precautionary measures and instructions denser and evaporator. outlined in this manual. Before servicing a unit, refer to this service manual and its relevant sections. Failure to adhere to all precautionary measures listed in this section may result in personal injury, damage to the unit or to property, or in extreme cases, death.
Page 6 • Prior to work taking place, the area around the equipment is to be surveyed to make sure that there are no ﬂammable hazards or ignition risks. • NO SMOKING signs shall be displayed. • Prior to beginning work on systems containing ﬂammable refrigerants, safety checks are necessary to ensure that the •...
Page 7 • that capacitors are discharged: this shall be done in shall also take into account the e a safe manner to avoid possibility of sparking; continual vibration from sources such as compressors or fans. • that there no live electrical components and wiring are exposed while charging, recovering or purging the system;...
Page 8 • The refrigerant charge shall be recovered into the • Before attempting the procedure ensure that: correct recovery cylinders. The system shall be ﬂushed • mechanical handling equipment is available, if with OFN to render the unit safe. This process may required, for handling refrigerant cylinders;...
Page 9 • Empty recovery cylinders are evacuated and, if • The recovered refrigerant shall be returned to the possible, cooled before recovery occurs. refrigerant supplier in the correct recovery cylinder, and the relevant Waste Transfer Note arranged. Do not • The recovery equipment shall be in good working mix refrigerants in recovery units and especially not in order with a set of instructions concerning the cylinders.
Page 10 Model Reference Contents Model Refer ence ....................External Appearance .....................
Page 11 Refer to the following table to determine the speciﬁc indoor and outdoor unit model number of your purchased equipment. Capacity Indoor Unit Model Outdoor Unit Model Power Supply (Btu/h) MCBU-06HRFN1-MV0W MOX230-09HFN1-MW5W 6k Hyper Heat MOX230-09HFN1-MW5W MCBU-09HRFN1-MW0W MOX330-09HFN1-MY5W 9k Hyper Heat...
Page 12 2. External Appearance Indoor Unit One-way Cassette Outdoor Unit Outdoor Model Reference...
Page 13: Table Of Contents
Indoor Unit-One-way Cassette Contents Feature ........................2 Dimensional Drawings ..................Part names ......................Service Place ......................Accessories ......................Air Velocity and Temperature Distributions ............Noise Criterion Curves ..................Electrical Characteristics ..................Electrical Wiring Diagrams ..................
Page 14: Feature
1. Feature ELEVATION PANEL • From now on, no more climbing up & down, because the panel itself can be up & down. • By activating the Elevation Panel function on remote controller (or smart controller), the panel will go straight down r.
Page 15 • HangUp INSTALLATION • For sure, installers can go with a more common approach to ﬁx the unit with hooks. • Our hangers with optimized anti-cutting design are easy to grab and lift up, preventing hands from scratching by the sharp edge. Prevent Scratches Build-in Drain Pump...
Page 16: Dimensional Drawings
2. Dimensional Drawings IDU-1-way Cassette 4...
Page 17: Part Names
3. Part names IDU-1-way Cassette 5...
Page 18: Service Place
4. Service Place IDU-1-way Cassette 6...
Page 19: Accessories
5. Accessories The air conditioning system comes with the following accessories. Use all of the installation parts and accessories to in- stall the air conditioner. Improper installation may result in water leakage, electrical shock and ﬁre, or equipment failure. Name Shape Quantity Installation cardboard template...
Page 20: Air Velocity And Temperature Distributions
6. Air Velocity and Temperature Distributions Discharge Angle 65° Cooling airﬂow velocity distributions Cooling temperature distributions IDU-1-way Cassette 8...
Page 21 Discharge Angle 80° Heating airﬂow velocity distributions Heating temperature distributions IDU-1-way Cassette 9...
Page 22: Noise Criterion Curves
7. Noise Criterion Curves Indoor Unit 1.4m/4.59ft Notes: -Sound measured at 1.4m/4.59ft away from the noisiest location of the unit. -Data is valid at free ﬁeld condition -Data is valid at nominal operation condition -Reference acoustic pressure OdB = 20µPa -Sound level will vary depending on a range of factors such as the construction -(acoustic absorption coefﬁcient) of particular room in which the equipment is installed.
Page 23 6k/9k IDU-1-way Cassette 11...
Page 24: Electrical Characteristics
8. Electrical Characteristics 6k/9k/12k hyper Capacity (Btu/h) 9k/12k 18k hyper Heat Heat Phase Power (Outdoor) Frequency And Volt 208/230V,60Hz Indoor unit(A) Max Fuse Outdoor unit(A) Line quantity Outdoor Unit Line 14/2.5mm² 14/2.5mm² 14/2.5mm² 12/4.0mm² Power Wire diameter(AWG) Line quantity Outdoor-indoor Line 16/1.5mm 16/1.5mm...
Page 26 10.1 Some connectors introduce: A For remote control (ON-OFF) terminal port CN23 and short connector of JR6 1. Remove the short connector of JR6 when you use ON-OFF function; 2. When remote switch o 3. When remote switch on (CLOSE) ;the unit would be on; 4.
Page 27 B For ALARM terminal port CN33 1. Provide the terminal port to connect ALARM ,but no voltage of the terminal port , the power from the ALARM system (not from the unit ) 2. Although design voltage can support higher voltage ,but we strongly ask you connect the power less than 24V, current less than 0.5A 3.
Page 28 C. For new fresh motor terminal port CN8 1. Connect the fan motor to the port , no need care L/N of the motor ; 2. The output voltage is the power supply; 3. The fresh motor can not excess 200W or 1A , follow the smaller one ; 4.
Page 29 10.2 Micro-Switch Introduce: A. Micro-switch SW1 is for selection of indoor fan stop temperature (TEL0) when it is in anti-cold wind action in heating mode. Range: 24 C, 15 C, 8 C, According to EEROM setting (reserved for special customizing). FOR FAN MOTER SW2 / SWITCH...
Page 30 C.Micro-switch SW2-2 is for selection of Breezeless function. Range: OFF, ON. D.Micro-switch SW3 is for selection of auto-restart function. Range: Active, inactive E.Micro-switch SW6 is for selection of temperature compensation in heating mode. This helps to reduce the real temperature di rence between ceiling and so that the unit could run properly.
Page 31 G.Micro-switch S1 and dial-switch S2 are for address setting when you want to control this unit by a central controller. Range: 00-63 32~35 36~53 54~71 72~90 91~105 106~140 141~160 161~200 H. Dial-switch ENC1: The indoor PCB is universal designed for whole series units from 7K to 68K. This ENC1 setting will tell the main program what size the unit is.
Page 32 Outdoor Unit Contents Dimensional Drawings ..................Service Place ......................Capacity Correction Factor for Height Di rence ..........Noise Criterion Curves ..................Refrigerant Cycle Diagrams ................Electrical Wiring Diagrams ..................
Page 33: Dimensional Drawings
1. Dimensional Drawings Please check the corresponding dimensional drawing according to the panel plate. ODU Model Panel Plate MOX230-09HFN1-MW5W X230 MOX330-09HFN1-MY5W X330 MOX230-12HFN1-MV5W X230 MOX330-12HFN1-MW5W X330 MOX430-18HFN1-MU0W X430 MOX430-17HFN1-MT0W X430 Outdoor Unit 2...
Page 34 Panel Plate X230 (Rounded grille 1) Outdoor Unit 3...
Page 35 Panel Plate X230 (Rounded grille 2) Outdoor Unit 4...
Page 36 Panel Plate X230(Square grille) Outdoor Unit 5...
Page 37 X330(Rounded grille 1) Panel Plate Outdoor Unit 6...
Page 38 X330(Rounded grille 2) Panel Plate Outdoor Unit 7...
Page 39 X330(Square grille) Panel Plate Outdoor Unit 8...
Page 40 X430(Rounded grille 1) Panel Plate Outdoor Unit 9...
Page 41 X430(Rounded grille 2) Panel Plate Outdoor Unit 10...
Page 42 X430(Square grille) Panel Plate Outdoor Unit 11...
Page 43 Panel Plate D30(Rounded grille 1) Outdoor Unit 12...
Page 44 Panel Plate D30(Rounded grille 2) Outdoor Unit 13...
Page 45 Panel Plate D30(Square grille) Outdoor Unit 14...
Page 46 Panel Plate E30(Square grille) Outdoor Unit 15...
Page 47 Panel Plate E30(Rounded grille 1) Outdoor Unit 16...
Page 48 Panel Plate E30(Rounded grille 2) Outdoor Unit 17...
Page 49: Service Place
2. Service Place Outdoor Unit 18...
Page 50: Capacity Correction Factor For Height Di Rence
3. Capacity Corr ection Factor for Height Di rence Capacity(Btu/h) 6k~9k Pipe Length (m/ft) Cooling 7.5/24.6 10/32.8 20/65.6 25/82 10/32.8 0.969 0.936 0.920 Indoor Upper than Outdoor 5/16.4 0.995 0.979 0.946 0.929 Height di rence 1.000 0.984 0.951 0.934 H (m) -5/-16.4 1.000 0.984...
Page 51 Capacity(Btu/h) Pipe Length (m/ft) Heating 7.5/24.6 10/32.8 20/65.6 30/98.4 20/65.6 0.987 0.978 Indoor Upper 10/32.8 0.996 0.987 0.978 than Outdoor 5/16.4 1.000 0.996 0.987 0.978 Height di rence 1.000 0.996 0.987 0.978 H (m) -5/-16.4 0.992 0.988 0.979 0.970 Outdoor Upper -10/-32.8 0.980 0.971...
Page 52 Capacity Pipe Length (m/ft) (Btu/h) Cooling 7.5/24.6 10/32.8 20/65.6 30/98.4 40/131.2 50/164 25/82 0.891 0.862 0.832 20/65.6 0.930 0.900 0.871 0.841 Indoor Upper than Outdoor 10/32.8 0.970 0.940 0.910 0.879 0.849 Height 5/16.4 0.995 0.980 0.949 0.919 0.888 0.858 rence 1.000 0.985 0.954...
Page 53 Capacity Pipe Length (m/ft) (Btu/h) Cooling 7.5/24.6 15/49.2 25/82 35/114.8 50/164 65/213.3 30/98.4 0.889 0.850 0.812 20/65.6 0.924 0.898 0.859 0.820 Indoor Upper than Outdoor 10/32.8 0.959 0.933 0.907 0.868 0.828 5/16.4 0.995 0.969 0.942 0.916 0.876 0.837 Height rence 1.000 0.974 0.947...
Page 54 Capacity Pipe Length (m/ft) (Btu/h) Cooling 7.5/24.6 15/49.2 25/82 35/114.8 50/164 65/213.3 30/98.4 0.884 0.843 0.802 20/65.6 0.920 0.893 0.852 0.810 Indoor Upper than Outdoor 10/32.8 0.957 0.930 0.902 0.860 0.819 5/16.4 0.995 0.967 0.939 0.911 0.869 0.827 Height rence 1.000 0.972 0.944...
Page 55 Capacity Pipe Length (m/ft) (Btu/h) Cooling 7.5/24.6 15/49.2 25/82 35/114.8 50/164 65/213.3 30/98.4 0.870 0.823 0.775 20/65.6 0.911 0.879 0.831 0.783 Indoor Upper than Outdoor 10/32.8 0.953 0.920 0.888 0.840 0.791 5/16.4 0.995 0.962 0.930 0.897 0.848 0.799 Height rence 1.000 0.967 0.934...
Page 56: Noise Criterion Curves
4. Noise Criterion Curves Note: H= 0.5 × height of outdoor unit Notes: -Sound measured at 1.0m away from the center of the unit. -Data is valid at free ﬁeld condition -Data is valid at nominal operation condition -Reference acoustic pressure OdB=20µPa -Sound level will vary depending on arrange o fﬁcient) of particular room in which the equipment is installed.
Page 57 MOX230-12HFN1-MV5W MOX330-12HFN1-MW5W MOX430-17HFN1-MT0W MOX430-18HFN1-MU0W Outdoor Unit 26...
Page 58: Refrigerant Cycle Diagrams
5. Refrigerant Cycle Diagrams Pipe Size (Diameter:ø) Piping length (m/ft) Elevation (m/ft) mm(inch) Model Additional Refrigerant Liquid Rated Max. Rated Max. MOX230-09HFN1-MW5W 9.52(3/8) 6.35(1/4) 7.5/24.6 25/82 10/32.8 MOX330-09HFN1-MY5W 15g/m (0.16oz/ft) MOX230-12HFN1-MV5W 12.7(1/2) 6.35(1/4) 7.5/24.6 25/82 10/32.8 MOX330-12HFN1-MW5W For MOX330-09HFN1-MY5W& MOX330-12HFN1-MW5W, there is no Accumulator. Outdoor Unit 27...
Page 59 Pipe Size (Diameter:ø) Piping length (m/ft) Elevation (m/ft) mm(inch) Model Additional Refrigerant Liquid Rated Max. Rated Max. MOX430-18HFN1-MU0W 12.7(1/2) 6.35(1/4) 7.5/24.6 30/98.4 20/65.6 15g/m (0.16oz/ft) MOX430-17HFN1-MT0W For MOX430-18HFN1-MU0W , there is no Accumulator. Outdoor Unit 28...
Page 60: Electrical Wiring Diagrams
Electrical Wiring Diagrams ODU Model ODU Wiring Diagram MOX230-09HFN1-MW5W MOX330-09HFN1-MY5W 16022000035853 MOX230-12HFN1-MV5W MOX330-12HFN1-MW5W MOX430-18HFN1-MU0W 16022000035849 MOX430-17HFN1-MT0W ODU Model ODU Main Printed Circuit Board MOX230-09HFN1-MW5W MOX330-09HFN1-MY5W 17122000048121 MOX230-12HFN1-MV5W MOX330-12HFN1-MW5W MOX430-18HFN1-MU0W 17122000048066 MOX430-17HFN1-MT0W 17122000041117 Outdoor Unit 29...
Page 63 Outdoor unit printed circuit board diagram: 17122000044714, 17122000048121, 17122000046453...
Page 64 Earth: connect to Ground N_in: connect to N-line (208-230V AC input) CN1A L_in: connect to L-line (208-230V AC input) CN16 S: connect to indoor unit communication HEAT1 CN17 connect to compressor heater, 208-230V AC when is ON 4-WAY CN60 connect to 4 way valve, 208-230V AC when is ON. HEAT2 CN15 connect to chassis heater, 208-230V AC when is ON...
Page 65 Outdoor unit printed circuit board diagram: 17122000048064 & 17122000048066 RC 2 VU B...
Page 66 Earth: connect to Ground Power Supply N_in: connect to N-line (208-230V AC input) L_in: connect to L-line (208-230V AC input) S: connect to indoor unit communication 4-WAY CN60 connect to 4 way valve, 208-230V AC when is ON. AC-FAN connect to AC fan HEAT2 CN19 connect to chassis heater, 208-230V AC when is ON...
Page 67 Outdoor unit printed circuit board diagram: 17122000041117, 17122000034170...
Page 68 Earth: connect to Ground Power Supply N_in: connect to N-line (208-230V AC input) L_in: connect to L-line (208-230V AC input) S: connect to indoor unit communication 4-WAY CN60 connect to 4 way valve, 208-230V AC when is ON. HEAT1 CN16 connect to compressor heater, 208-230V AC when is ON AC-FAN connect to AC fan...
Page 70 1. Installation Overview 1. Installation Overview...
Page 71 2. Location selection 2.1 Unit location selection can refer to installation manual. 2.2 DO NOT install the unit in the following locations: Where oil drilling or fracking is taking place. Coastal areas with high salt content in the air. Areas with caustic gases in the air, such as near hot springs.
Page 72 3. Indoor Unit Installation (1-way Cassette Type) 3.1 Service space for indoor unit NOTICE: These are three pre-cutting covers on the circuit breaker box. No.1 covers are suitable for MC cable, No.2 covers is suitable for another kind of cable. 3.
Page 73 5. Install the circuit breaker cover by ﬁxing the two screws. CAUTION The unit body must be completely aligned with the hole. Ensure that the unit and the hole are the same size before moving on. Ensure that the indoor unit is horizontal after installation.
Page 74 • Manually rotate the air defector, fx the panel to the cassette by using 3×M4*22 screws and a ST3.9*16 screw. ST3.9*16 screw • Install the control box cover and turn the circuit breaker to ON, close the two plastic covers on both sides of the panel.
Page 75 properly grounded. 3.5. Optional parts installation 3.5.2 Install Wireless module 3.5.1 Install wire controller 1. Remove the protective cap of the wireless module (smart kit). 1. Remove the speciﬁc pre-cutting cover on the circuit breaker box. 2. Open the cover with display panel, loosen the screw and remove the cover.
Page 76 4. Outdoor unit installation 4.3 Install Outdoor Unit Fix the outdoor unit with anchor bolts(M10) 4.1 Service space for outdoor unit >60cm / 23.6” Fix with bolts Caution Since the gravity center of the unit is not at its physical center, so please be careful when lifting it with a sling.
Page 77 For Vertical drainage pipe (The following table is for 5. Drainage Pipe Installation reference) Install the drainage pipe as shown below and take Reference measures against condensation. Improperly installation Allowable value of inner could lead to leakage and eventually wet furniture and maximum water Remark pipe...
Page 78 should design a blowhole at the highest point of main pipe to ensure the condensate water discharge smoothly. The air outlet shall face down to prevent dirt enter - ing pipe. Each indoor unit of the system should be installed it. The installation should be considering the conve - nience for future cleaning.
Page 79 2.Conﬁrm the cross way of the pipes. 6. Refrigerant Pipe Installation 3.Measure the necessary pipe length. 6.1 Maximum length and drop height 4.Cut the selected pipe with pipe cutter Ensure that the length of the refrigerant pipe, the number of bends, and the drop height between the indoor and outdoor units meets the requirements shown in the following table.
Page 80 7. Vacuum Drying and Leakage 10. Set the wall conduit Checking 11. Set the supporter for the pipe. 12. Locate the pipe and ﬁx it by supporter 7.1 Purpose of vacuum drying For horizontal refrigerant pipe, the distance be - Eliminating moisture in system to prevent the phe - tween supporters should not be exceed 1m.
Page 81 4. Rain water might penetrate into pipeline during 8. Additional Refrigerant Charge construction. After the vacuum drying process is carried out, the additional refrigerant charge process need to be performed. Procedures of special vacuum drying are as follows: The outdoor unit is factory charged with refrigerant. 1.
Page 82 9 . Engineering of Insulation insulation and cause easy aging of the material. 9.2 Insulation of drainage pipe 9.1 Insulation of refrigerant pipe 1. Operational procedure of refrigerant pipe 1. Operational procedure of refrigerant pipe insulation insulation Select the suitable pipe insulation (except joint section) Cut the suitable pipe insulation (except joint section)
Page 83 Engineering of Electrical Wring 11. Test Operation 1. Highlights of electrical wiring installation 1. The test operation must be carried out after the entire installation has been completed. Air conditioning equipment should be grounded ac - cording to the local electrical regulations. Current leakage protection switch should be in - before the test operation.
Page 84 4. Drainage Test a. Ensure the drainpipe ﬂow smoothly. New buildings should perform this test before ﬁnishing the ceiling. b. Remove the test cover. Add 2000ml of water to the tank through the attached tube. c. Turn on the main power switch and run the air conditioner in COOL mode.
Page 85 Indoor Unit ....................Outdoor Unit ....................
Page 86 Air and moisture trapped in the refrigerant system a To prevent air and moisture from a the performance of the air conditioner by: conditioner’ s performance, the indoor unit, as well as the pipes between the indoor and outdoor unit, must be be •...
Page 87 • If the pressure successfully reaches -0.1 MPa Tighten the ﬂare nuts of the indoor and outdoor (14.5 Psi), fully close the Handle Lo valve, then units, and conﬁrm that both the 2- and 3-way valves cease vacuum pump operations. are closed.
Page 88 m A A CO M Close both 2- and 3-way valves. 3-way valves. Slightly connect the Handle Lo charge hose to the Operate the air conditioner in cooling mode to charge 3-way service port. the system with liquid refrigerant. Connect the charge hose to the valve at the bottom When the electronic scale displays the correct of the cylinder.
Page 89 Conﬁrm that the 2- and 3-way valves are opened. Close the 3-way valve so that the gauge rests between 0.3 MPa (43.5 Psi) and 0.5 MPa (72.5 Psi). Connect the charge hose with the push pin of Handle Lo to the 3-way valve’ s gas service port. Disconnect the charge set and mount the caps of service port and 2- and 3-way valves.
Page 90 • If the pressure successfully reaches -0.1 MPa Tighten the ﬂare nuts of the indoor and outdoor (14.5 Psi), fully close the Handle Lo valve, then units, and conﬁrm that both the 2- and 3-way valves cease vacuum pump operations. are closed.
Page 91 Wait for 5 minutes then check whether the gauge Conﬁrm that the 2- and 3-way valves are opened. needle moves after turning o Connect the vacuum pump to the 3-way valve’ s the gauge needle moves backward, check whether service port. there is gas leakage.
Page 92 m A A CO M Close both 2- and 3-way valves. Fully open the Handle Lo manifold valve, 2- and 3-way valves. Slightly connect the Handle Lo charge hose to the 3-way service port. Operate the air conditioner in cooling mode to charge the system with liquid refrigerant.
Page 93 Product Features Contents Display Function ....................Safety Features ...................... Basic Functions ....................... Table ......................Abbreviation ....................Fan Mode ...................... Cooling Mode ....................Heating Mode(Heat Pump Units) ..............Auto-mode ....................Drying Mode ....................Forced Operation Function ................Timer Function .................... 3.10 ECO Function ....................
Page 94: Display Function
1. Display Function Floor Ceiling Type MANUAL MANUAL MANUAL OPERATION OPERATION OPERATION TIMER TIMER TIMER PRE-DEF Infrared receiver (pre-heating/defrost) Timer indicator DEF./FAN DEF./FAN DEF./FAN ALARM ALARM ALARM indicator MANUAL Operation indicator Manual button Alarm indicator LED display Display 1 Display 2 PRE-DEF (pre-heating/defrost) Operation indicator...
Page 95 New 4-way Cassette Type & 1- way Cassette Type Electric heating indicator Alarm indicator ( some models) When wireless control LED display feature is activated ( some models) Timer PRE-DEF indicator indicator (pre-heating/defrost ) Operation indicator Duct Type Compact Cassette Type Product Features...
Page 96 Console Type Infrared receiver Operation indicator Timer indicator PRE-DEF (pre-heating/defrost) indicator Manual button Display 1 Infrared receiver Operation indicator Manual button Display 2 New Console Type Display Function ECO function (available on select units only) When Wireless Control feature is activated (some units) Temperature value Temperature Timer ON is set.
Page 97: Safety Features
2. Safety Features Compressor three-minute delay at restart Compressor functions are delayed for up to ten seconds upon the ﬁrst startup of the unit, and are delayed for up to three minutes upon subsequent unit restarts. Automatic shuto If the compressor discharge temperature exceeds a certain level for nine seconds, the compressor ceases operation.
Page 98: Basic Functions
3. Basic Functions Table Cooling Mode&Heating mode Heating Mode Functions Auto mode Defrosting Anti-cold Air Outdoor Fan Control Mode Function Case 1: Cases Compressor Case 2:T4 Case 1 Case 2 Case 1 Case 2 Case 1 Case 2 Case 3 Frequency and T4 6k ~ 18k M ode l s...
Page 99: Abbreviation
Abbreviation 120 minutes. • If the following conditions are satisﬁed, the Unit element abbreviations compressor ceases operation. • Calculated frequency(fb) is less than minimum limit Abbreviation Element frequency(FminC). Indoor room temperature • Compressor runs at FminC more than 10 minutes. Coil temperature of evaporator •...
Page 100: Heating Mode(Heat Pump Units)
• For di rent outdoor units, the fan speeds are Note: HDIFTEMP2 is EEPROM setting parameter. It is 2°C rent. usually. Case 2: • If one of the following conditions is satisﬁed, not judge protective time. • The outdoor unit will be run at di rent fan speed according to T4.
Page 101: Auto-Mode
reduces to 80% (High); see table in section 3.1 for details. • When T1-Tsc is higher than 0°C, fan speed reduces Case 1: to 60% (Medium); • T3 is lower than 3°C (37.4°F) and compressor • When T1-Tsc is higher than 0.5°C, fan speed running time is more than 120 minutes, at this reduces to 40% (Low);...
Page 102: Drying Mode
• In auto mode, the machine selects cooling, heating, or • All protections are activated and operate the same as fan-only mode on the basis of ∆T (∆T =T1-TS). they do that in cooling mode. • Low Room Temperature Protection ∆T Running mode If the room temperature is lower than 10°C, the...
Page 103 auto mode. • The operational process for sleep mode is as follows: • When cooling, the temperature rises 1°C (to not higher than 30°C/86°F) every hour. After 2 hours, the temperature stops rising and the indoor fan is ﬁxed at low speed. •...
Page 104: Eco Function
4. Optional Functions Electrical energy consumption control function (Optional) 8°C Heating Press the “Gear” button on remote controller to enter the In heating mode, the temperature can be set to as low energy efﬁcient mode in a sequence of following: as 8°C, preventing the indoor area from freezing if unoccupied during severe cold weather.
Page 105: Remote Controller Functions
5. Remote Controller Functions Infrared Wireless Remote Controller (Standard for some units) 5.1.1 RG10A(B2S)/BGEF Remote Controller Speciﬁcations Model RG10A(B2S)/BGEF Rated Voltage 3.0V (Dry batteries R03/LR03×2) Reaching Distance Environment Temperature Range -5°C~60°C(23°F~140°F ) Buttons and Functions Product Features...
Page 106 Remote LCD Screen Indicators Note: All indicators shown in the ﬁgure are for the purpose of clear presentation. But during the actual operation, only the relative function signs are shown on the display window. Product Features...
Page 107 (Standard for some units) 5.1.2 RG10B(B2)/BGEF Remote Controller Speciﬁcations Model RG10B(B2)/BGEF Rated Voltage 3.0V (Dry batteries R03/LR03×2) Reaching Distance Environment Temperature Range -5°C~60°C(23°F~140°F ) Buttons and Functions Turns the unit on or o ff. Scrolls through operation modes as follows: Increases temperate in NOTE: HEAT mode is not 1°C (1°F) inc rements.
Page 108 Remote LCD Screen Indicators Active clean/Self clean feature display Fresh feature display Sleep mode display Follow me feature display Wireless control feature display Low battery detection display(If flashes) Lights up when r emote sends signal to indoor unit Displays the curr ent mode, including: ECO display...
Page 109 (Standard for some units) 5.1.3 RG10L3(2HS)/BGEFU1 Remote Controller Speciﬁcations Model RG10L3(2HS)/BGEFU1 Rated Voltage 3.0V (Dry batteries R03/LR03×2) Reaching Distance Environment Temperature Range -5°C~60°C(23°F~140°F ) Buttons and Functions Turns the unit on or o ff. Scrolls through operation modes as follows: Increases temperate in 0.5°C (1°F) inc rements.
Page 110 Remote LCD Screen Indicators Active clean feature display Not applicable for this unit Fresh feature display Breeze Away display Sleep mode display Not applicable for this unit Follow me feature display Not applicable for this unit Wireless control feature display ECO intelligent eye display Low battery detection display(If flashes) Displays the curr ent...
Page 111 LCD Wired Remote Controller 5.2.1 LCD Wired Remote Controller KJR-12B/DP(T) The KJR-12B/DP(T) wired remote controller is standard for Duct type and is optional for some types. i) Buttons and Functions MODE BUTTON ON/OFF BUTTON ・ Used to start/stop the air ・...
Page 112 iii) Installation • Dimensions 120mm 21mm 13.1mm (4.7”) (0.8”) (0.5”) 19.5mm (0.7”) 51.1mm (2”) 120mm 85.5mm (4.7”) (3.3”) 50mm (1.9”) • Wiring diagram Refer to the following diagram to wire the wall-mounted remote control to the indoor unit. • Installation Diagram Connect the wire from the display panel of the indoor unit to a connecting cable.
Page 113 Putty Trap Putty Putty Trap Trap Note: DO NOT allow water to enter the remote control. Use the trap and putty to seal the wires. • For exposed mounting, cut holes on four of the sides according to the picture below. Cut three holes Cut one holes for wire outle t...
Page 114 5.2.2 LCD Wired Remote Controller KJR-120C/TF-E(Optional) The KJR-120C/TF-E wired remote controller is optional for some types. i) Buttons and Functions 1. POWER button 7. FOLLOW ME(PTC) button Turn on of turn o Allows the remote control to act as a remote thermostat and send temperature information from its current 2.
Page 115 ii) LCD Screen 8 PTC function indication 1 Operation mode indication 9 C° / F° indication 2 Fan speed indication 10 Temperature display 3 Left-right swing indication 11 Lock indication 4 Up-down swing indication 12 Room temperature indication 5 Faceplate function indication 13 Clock display 6 Main unit and secondary unit indication 14 On/O...
Page 116 iii) Installation • Dimensions 18. 5 • Wiring diagram Refer to the following diagram to wire the wall-mounted remote control to the indoor unit. Insert of the mainboard CN4 0 ----------------------------------- ----------------------------------- black black yellow ----------------------------------- yellow ----------------------------------- brown brown 4-Core Shield Cable, the length Wire controlle r Indoor unit mainboar d...
Page 117 Putty Trap Putty Putty Trap Trap Note: DO NOT allow water to enter the remote control. Use the trap and putty to seal the wires. • For exposed mounting, four outletting positions. There are three need cutting. Cutting place of rig ht Cutting place of left Cutting place of top side wire outle t...
Page 118: Lcd Wired Remote Controller
5.2.3 LCD Wired Remote Controller KJR-120G/TF-E(Optional) The KJR-120G/TF-E wired remote controller is optional for some types. i) Buttons and Functions Copy/ Swing Timer Back/Turbo Follow me Mode Fan speed (Lock) 1 MODE button 7. DELAY/DAY OFF button Used to select the operation mode: Auto / Cooling / Drying / To set 1 to 2 hours delay o Heating / Fan;...
Page 119 ii) LCD Screen 8 Turbo/PTC function indication 1 Operation mode indication 9 C° / F° indication 2 Fan speed indication 10 Temperature display 3 Left-right swing indication 11 Lock indication 4 Up-down swing indication 12 Room temperature indication 5 Faceplate function indication 13 Clock display 6 Main unit and secondary unit indication 14 On/O...
Page 120 iii) Installation • Dimensions 120m m 18.5m m 46mm (4.7”) (0.7”) (1.8”) 83.5m m 123m m (3.3”) (4.8”) 62mm (2.4”) • Wiring diagram 1) Connection For Cassette: The wired controller connects to main control board directly. Main control boar d ADSS HA HB HA HB...
Page 121 2) Address setting Unit1 Unit2 Unit16 HA HB HA HB HA HB HA HB Wired controlle r a. One non-polarity controller can control up to 16 indoor units. b. When the non-polarity controller is connected to several units, every air-conditioner in network has only one network address to distinguish each other.
Page 122 Putty Trap Putty Putty Trap Trap Note: DO NOT allow water to enter the remote control. Use the trap and putty to seal the wires. • For wiring the indoor unit, there are four methods: • From the rear; • From the bottom; •...
Page 123 5.2.4 LCD Wired Remote Controller KJR-120X/TFBG-E(Optional) The KJR-120X/TFBG-E wired remote controller is optional for some types. i) Buttons and Functions 1. POWER button 6. TIMER button Turn on of turn o To set timer on and timer o 7. FAN SPEED button 2 MODE button Used to select the fan speed.
Page 124 ii) LCD Screen 1 Operation mode indication 8 Room temperature indication 2 Fan speed indication 9 Rotating indication 3 Temperature display 10 Follow Me function indication 4 Lock indication 11 Left-right swing indication 5 °C / °F indication (some models) 6 Main unit and secondary unit 12 Clock display indication...
Page 125 iii) Installation • Dimensions 20mm 120mm 46mm 60mm 3) Connection • Wire with the indoor unit: 60mm Wiring hole HA HB • 1: Indoor Unit. • 2: Notch the part for the wiring to pass through with a nipper tool. •...
Page 126 For some models: The wired controller connects to terminal board, terminal board connects to main control board. Main control boar d Terminal board CN4 0 ENC1 HA HB HA HB Wired controlle r 4) Address setting Unit2 Unit16 Unit1 HA HB HA HB HA HB HA HB...
Page 127: Centralized Controller
Centralized Controller 1) Connection For Light commercial air conditioner with XYE port, it can be directly connected to Centralized Controller (CCM03, CCM09). 2) Address setting When setting the address, please make sure the unit is powered o ress can be set from 0 to 63 by the switch. Turn on the unit, then the address will be e Note: For light commercial aire conditioner with XYE port, it can be also connected to BMS (Building Management System).
Page 128 Remote maintenance ..................Field maintenance ..................EH 00/EH 0A / EC 51 ( EEPROM parameter error Diagnosis and Solution ) ..16 EL 01 ( Indoor and outdoor unit communication error Diagnosis and Solution ) 17 EH 03 / EH 31/EH 32/EC 07 (Fan speed is operating outside of the normal range Diagnosis and Solution) ................
Page 129 PC 04 (Inverter Compressor Drive Error Diagnosis and Solution) ....6.10 PC 03 (High Pressure Protection or low Pressure Protection Diagnosis and Solution) ...................... 6.11 PC 02 (Top temperature protection of compressor or High temperature protection of IPM module Diagnosis and Solution) ........6.12 PC 0L (Low ambient temperature protection) ..........
Page 130 Test the voltage between P and N on back of the main PCB with multimeter. If the voltage is lower than 36V, the capacitors are fully discharged. For models that cannot be measured, wait 5 minutes after the power supply is o ensure that the capacitors are fully discharged.
Page 131 When the indoor unit encounters a recognized error, the operation lamp will ﬂash in a corresponding series, the timer lamp may turn on or begin ﬂashing, and an error code will be displayed. These error codes are described in the following table: EH 00/ 1 time...
Page 132 7 times FLASH PC 00 IPM malfunction or IGBT over-strong current protection TS25 2 times FLASH PC 01 Over voltage or over low voltage protection TS26 Top temperature protection of compressor or High temperature 3 times FLASH PC 02 TS31 protection of IPM module 5 times FLASH...
Page 133 • To enter engineer mode, in power-on or standby mode, and in non-locked state, press the key combination “ON/OFF + Air Speed” for 7s: • After entering the engineer mode, the remote control will display icons of “Auto, Cool, Dry, Heat”, and the Battery icon;...
Page 134 rror code of engineer mode EH 00/EH 0A Indoor unit EEPROM parameter error EL 01 Indoor / outdoor unit communication error EH A Communication error between indoor unit and indoor external fan module EH 30 Parameters error of indoor external fan EH 31 Upper indoor fan speed is operating outside of the normal range(for new console type) EH 32...
Page 135 PC 00 IPM malfunction or IGBT over-strong current protection PC 10 Over low voltage protection PC 11 Over voltage protection PC 12 DC voltage protection pc 02 Top temperature protection of compressor or High temperature protection of IPM module PC 40 Communication error between outdoor main chip and compressor driven chip Pc 41 Current Input detection protection...
Page 136 When troubles occur, please check the following points with customers before ﬁeld maintenance. Unit will not start TS11 - TS12 The power switch is on but fans will not start TS11 - TS12 The temperature on the display board cannot be set TS11 - TS12 Unit is on but the wind is not cold(hot) TS11 - TS12...
Page 137 Unit will not start TS13 - TS14 Compressor will not start but fans run TS13 - TS14 Compressor and condenser (outdoor) fan will not start TS13 - TS14 Evaporator (indoor) fan will not start TS13 - TS14 Condenser (Outdoor) fan will not start TS13 - TS14 Unit runs, but shortly stops TS13 - TS14...
Page 138 1.Remote Maintenance Electrical Circuit Refrigerant Circuit Possible causes of trouble Unit will not start The power switch is on but fans will not start The temperature on the display board cannot be set Unit is on but the wind is not cold(hot) Unit runs, but shortly stops The unit starts up and stops frequently Unit runs continuously but insu cient cooling(heating)
Page 139: Remote Maintenance
1.Remote Maintenance Others Possible causes of trouble Unit will not start The power switch is on but fans will not start The temperature on the display board cannot be set Unit is on but the wind is not cold(hot) Unit runs, but shortly stops The unit starts up and stops frequently Unit runs continuously but insu cient cooling(heating) Cool can not change to heat...
Page 140: Field Maintenance
2.Field Maintenance Refrigerant Circuit Others Possible causes of trouble Unit will not start Compressor will not start but fans run Compressor and condenser (outdoor) fan will not start Evaporator (indoor) fan will not start Condenser (Outdoor) fan will not start Unit runs, but shortly stops Compressor short-cycles due to overload High discharge pressure...
Page 141 2.Field Maintenance Electrical Circuit Possible causes of trouble Unit will not start Compressor will not start but fans run Compressor and condenser (outdoor) fan will not start Evaporator (indoor) fan will not start Condenser (Outdoor) fan will not start Unit runs, but shortly stops Compressor short-cycles due to overload High discharge pressure Low discharge pressure...
Page 142: El 0C (Refrigerant Leakage Detection Diagnosis And Solution)
If you do not have the time to test which speciﬁc parts are faulty, you can directly change the required parts according the error code. You can ﬁnd the parts to replace by error code in the following table. EH 00 /EH EH 03 /eh EH 0 b/FH EL 01...
Page 143 : Indoor or outdoor PCB main chip does not receive feedback from EEPROM chip. • Indoor PCB • Outdoor PCB turn it on 2 minutes later. Is it still displaying The unit is operating normally . the error code ? Replace the indoor main PCB(E0/EA) /outdoor main PCB(F4).
Page 144 : Indoor unit can not communicate with outdoor unit • Indoor PCB • Outdoor PCB • Reactor , then restart the unit after 2 minutes. Does the error code Solved disappear? Check the wiring connection Correct the connection or between indoor and outdoor change wires unit, are they good ? The value is alternative...
Page 145 • Use a multimeter to test the DC voltage between 2 port(or S or L2 port) and 3 port(or N or S port) of outdoor unit. The red pin of multimeter connects with 2 port(or S or L2 port) while the black pin is for 3 port(or N or S port) . •...
Page 146 : When indoor / outdoor fan speed keeps too low or too high for a certain time, the unit ceases operation and the LED displays the failure. • Connection wires • Fan assembly • Fan motor • PCB , then restart the unit after 2 minutes. Does a problem remain ? The unit is operating normally , Rotate...
Page 147 Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector. If the value of the voltage is not in the range showing in below table, the PCB must has problems and need to be replaced. Vs/Vm 192V~380V Black...
Page 148 +15V 0~6V 0~15V Release the UVW connector. Measure the resistance of U-V, U-W, V-W. If the resistance is not equal to each other, the fan motor must has problems and need to be replaced. otherwise the PCB must has problems and need to be replaced.
Page 149 : If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED displays the failure. • Connection wires • Sensors • PCB Check the connection between temperature sensor and PCB . Is it properly wired ? Ensure proper connections . Measure the resistance value of the sensor.
Page 150 : Deﬁne the evaporator coil temperature T2 of the compressor just starts running as Tcool. In the beginning 5 minutes after the compressor starts up, if T2 < Tcool-1°C(1.8°F) does not keep continuous 4 seconds and compressor running frequency higher than 50Hz does not keep for 3 minutes, and this situation happens 3 times, the display area will show “EL 0C”...
Page 151 : If the sampling voltage is not 5V, the LED displays the failure code. • Connection wires • Water-level switch • Water pump • Indoor PCB turn it on 2 minutes later. turn it on 2 minutes later. Does a problem Does a problem The unit is operating normally .
Page 152: Pc 00 (Ipm Malfunction Or Igbt Over-Strong Current Protection Diagnosis And Solution)
When the voltage signal the IPM sends to the compressor drive chip is abnormal, the display LED shows “PC 00” and the AC turn o • Connection wires • IPM module board • Outdoor fan assembly • Compressor • Outdoor PCB Check the wiring between PCB and compressor .
Page 153 Abnormal increases or decreases in voltage are detected by checking the speciﬁed voltage detection circuit. • Power supply wires • IPM module board • PCB • Reactor Check the power supply . Is it in working order ? the unit. Check the connections and wires .
Page 154 An abnormal inverter compressor drive is detected by a special detection circuit, including communication signal detection, voltage detection, compressor rotation speed signal detection and so on. • Connection wires • IPM module board • Outdoor fan assembly • Compressor • Outdoor PCB Check the wiring between the PCB and compressor .
Page 155 : Outdoor pressure switch cut o ressure is higher than 4.4 MPa or outdoor pressure switch cut o ressure is lower than 0.13 MPa, the LED displays the failure code. • Connection wires • Pressure switch • Outdoor fan • Outdoor main PCB •...
Page 156 High pressure protection High pressure protection Are the high pressure switch Are the high pressure switch Connect high pressure switch and Connect high pressure switch and and main control boar wired and main control boar wired mian control board mian control board correctly? correctly? Is the high pressure...
Page 157 Low pressure protection Low pressure protection Are the low pressure protector Are the low pressure protector Reconnect the low pressure protector Reconnect the low pressure protector and main control board wired and main control board wired and main control board and main control board properly? properly?
Page 158 For some models with overload protection, If the sampling voltage is not 5V, the LED will display the failure. If the temperature of IPM module is higher than a certain value, the LED displays the failure code. • Connection wires •...
Page 159 Check the fastening screws on the PCB and IPM radiator. Replace the outdoor Are they fixed tightly? control PCB. Tighten the screws and apply silicon grease. : It is a protection function. When compressor is o re(T4) is lower than -35 for 10s, the AC will stop and display the failure code.
Page 160 : Indoor PCB does not receive feedback from the display board. • Communication wire • Indoor PCB • Display board , then restart the unit 2 minutes later Is it still displaying the error code ? The unit functions normally Check the wirings and connections Are all the connections Ensure a proper connection...
Page 161 : If Indoor PCB does not receive feedback from wired controller, the error displays on the wired controller • Connection wires • Indoor PCB • Wired controller Power o , then restart the unit after 2 minutes. Does a problem remain ? The unit is operating normally Check the wirings and connections Are all the...
Page 162 : Indoor unit does not receive the feedback from external fan module during 150 seconds. or Indoor unit receives abnormal increases or decreases in voltage from external fan module. • Indoor main PCB Shut o the power supply and turn it on 2 minutes later. Is it still displaying The unit is operating normally .
Page 163 : Indoor PCB does not get the feedback from the PCB of auto-lifting panel. • Connection wires • PCB of auto-lifting panel • Indoor PCB Communication failure between indoor unit and Communication failure between indoor unit and auto-lifting panel auto-lifting panel Check the wire connection between auto -lifting Check the wire connection between auto -lifting panel and indoor unit...
Page 164 1. Disconnect the temperature sensor from PCB (Refer to Chapter 5&6. Indoor&Outdoor Unit Disassembly). 2. Measure the resistance value of the sensor using a multi-meter. 3. Check corresponding temperature sensor resistance value table (Refer to Chapter 8. Appendix). 1. Disconnect the compressor power cord from outdoor PCB (Refer to Chapter 6. Outdoor Unit Disassembly)). 2.
Page 165 Blue-Red Blue-Black 1.28 1.03 0.62 Red-Black Blue-Red Blue-Black 0.75 1.86 0.65 0.37 Red-Black Blue-Red Blue-Black 1.72 1.09 2.13 1.82 Red-Black...
Page 167 1. Turn o 2. Discharge electrolytic capacitors and ensure all energy-storage unit has been discharged. 3. Disassemble outdoor PCB or disassemble IPM board. 4. Measure the resistance value between P and U(V, W, N); U(V, W) and N. (+)Red (-)Black (+)Red (-)Black (Several M )
Page 168 Filter and Panel ....................Display Board ....................Electrical Parts ....................Water Collector & Water Level Switch ............Water Pump ....................Evaporator ....................Fan Motor and Fan ..................Stepper Motor .....................
Page 169 1) For panel with lift function, grab air grille with your ﬁngers and pull it out slowly in the direction of the arrow. CJ_MCB_001 ) (see 2) For panel without lift function, push one side of the grille clamp(on the both sides of the grille), and then CJ_MCB_002 ) remove 2 screws.
Page 170 3) Turn over the air inlet grille assembly then take out the ﬁlter. (see MCB_003 ) 4) Open the two covers on both sides of the panel and remove 3 screws.(see CJ_MCB_004 )
Page 171 5) Open the louver and open the screw cover, then remove the screw.(see CJ_MCB_005 ) 6) Remove 3 screws.(see CJ_MCB_006 )
Page 172 7) Separate panel and water collector, then remove the panel.(see MCB_007 ) 8) Remove 2 screws and remove the cover of electronic control box. (see CJ_MCB_008 ) 9) Disconnect the connectors of display board and stepper motor and release the panel.
Page 173 1) Remove 1 screw of display board subassembly. (see CJ_MCB_009)
Page 174 1) Open left cover of panel.(see MCB_010 ) 2) Remove 2 screws and remove the cover of electronic control box. (see CJ_MCB_008 ) 3) Remove 2 screws of air switch cover. CJ_MCB_011 )(for some models) (see...
Page 175 4) Disconnect connectors and then remove the main control board(3 Pump CJ_MCB_012 ) clips). (see Earth wire (If you want to repair the main control board assembly, perform the step 1 to step 4;If you want to repair the electrical control box subassembly, perform step 5 Fan motor to step 6 below.)
Page 176 5) Remove 4 screws of electronic control box subassembly.(see MCB_013-1&CJ_MCB_013-2 ) 6) Remove the electronic control box subassembly.
Page 177 1) Remove the 5 screws and remove the water collector. (see CJ_MCB_014)
Page 178 Step 3 1) Remove 2 screws and take out water pump assembly.(see CJ_MCB_015) 2) Loosen the spring. (see CJ_ MCB_015) Step 2 3) Pull out the drain pipe. (see CJ_ MCB_015)
Page 179 1) Remove 2 screws of pipe clamp board. (see CJ_MCB_016) 2) Remove 2 screws on the left of the evaporator ﬁxing bracket. (see CJ_ MCB_017)
Page 180 3) Remove 2 screws on the right of the evaporator. 4) Cut the ribbon by a shear, then pull out the coil temperature sensor (T2) and remove 1 earthing screw. (see CJ_MCB_018) 5) Remove the evaporator. (see CJ_ MCB_019)
Page 181 1) Remove 2 screws of fan motor base. (see CJ_MCB_020) 2) Pull out the fan motor and fan assembly. rew and remove the the fan motor. (see CJ_MCB_021)
Page 182 1) Open the louver and push the hooks in the direction shown in the right picture. (see CJ_MCB_022) 2) Remove two scr cover,and take out it. (see CJ_ MCB_023) 3) Remove two screws and remove stepper motor. (see CJ_MCB_024)
Page 183 Outdoor Unit Disassembly Contents Outdoor Unit Table ....................Outdoor Unit Disassembly ..................Panel Plate ..................... Electrical Parts ..................... Fan Assembly ....................Fan Motor ....................Sound Blanket ..................... Four-way Valve .................... Compressor ....................
Page 184: Outdoor Unit Table
1. Outdoor Unit Disassembly Outdoor Unit Table Outdoor Unit Model Panel Plate PCB Board MOX230-09HFN1-MW5W X230 PCB Board 11 MOX330-09HFN1-MY5W X330 PCB Board 11 MOX230-12HFN1-MV5W X230 PCB Board 11 MOX330-12HFN1-MW5W X330 PCB Board 11 MOX430-18HFN1-MU0W X430 PCB Board 3 MOX430-17HFN1-MT0W X430 PCB Board 3 Outdoor Unit Disassembly 2...
Page 185: Panel Plate
2. Outdoor Unit Disassembly 2.1 Panel Plate 1. X230/X330 Procedure Illustration 1) Turn o power breaker. 2) Remove the screw of the big handle and then remove the big handle (1 screws) (see CJ_X230_001). Big Handle CJ_X230_001 Top Cover 3) Remove the screws of the top cover and then remove the top cover (4 screws).
Page 186 Procedure Illustration 4) Remove the screws of water collecting cover and then remove the water collecting cover (2 screws) (see CJ_ X230_003). Water Collecting Cover CJ_X230_003 5) Remove the screws of the front panel and then remove the front panel (7 screws(ono 9 screws(inverter models) (see CJ_ X230_004).
Page 187 Procedure Illustration 6) Remove the screws of the right panel and then remove the right panel (5 screws) (see CJ_X230_005). Right Panel CJ_X230_005 Note: This section is for reference only. Actual unit appearance may vary. Outdoor Unit Disassembly 5...
Page 188 2.X430 Procedure Illustration 1) Turn o power breaker. 2) Remove the screw of the big handle and then remove the big handle (1 screw) (see CJ_X430_001). Big Handle CJ_X430_001 Top Cover 3) Remove the screws of the top cover and then remove the top cover (3 screws).
Page 189 Procedure Illustration 4) Remove the screws of water collecting cover and then remove the water collecting cover (2 screws) (see CJ_ X430_003). Water Collecting Cover CJ_X430_003 5) Remove the screws of the front panel and then remove the front panel (7 screws(ono 9 screws(inverter models) (see CJ_ X430_004).
Page 190 Procedure Illustration 6) Remove the screws of the right panel and then remove the right panel (6 screws) (see CJ_X430_005). Right Panel CJ_X430_005 Note: This section is for reference only. Actual unit appearance may vary. Outdoor Unit Disassembly 8...
Page 191 3. D30 Procedure Illustration 1) Turn o Big Handle power breaker. 2) Remove the screws of the big handle and then remove the big handle (2 screws) (see CJ_D30_001). CJ_D30_001 3) Remove the screws of the top cover and then remove the top cover (4 Top Cover screws).
Page 192 Procedure Illustration 4) Remove the screws of the front right panel and then remove the front right panel (2 screws) (see CJ_D30_003). Front Right Panel CJ_D30_003 5) Remove the screws of the front panel and then remove the front panel (9 screws) (see CJ_D30_004).
Page 193 Procedure Illustration 6) Remove the screws of water collecting cover and then remove the water collecting cover (2 screws) (see CJ_ D30_005). Water Collecting Cover CJ_D30_005 7) Remove the screws of the rear net and then remove the rear net (2 screws) CJ_D30_006).
Page 194 Procedure Illustration 8) Remove the screws of the right panel and then remove the right panel (8 screws) (see CJ_D30_007). Right Panel CJ_D30_007 Note: This section is for reference only. Actual unit appearance may vary. Outdoor Unit Disassembly 12...
Page 195 4. E30/590 Procedure Illustration 1) Turn o power breaker. 2) Remove the screws of the big handle and then remove the big handle (2 screws) (see CJ_E30_001). CJ_E30_001 3) Remove the screws of the top cover and then remove the top cover (4 screws).
Page 196 Procedure Illustration 5) Remove the screws of the front right panel and then remove the front right panel (2 screws) (see CJ_E30_004). CJ_E30_004 Note: This section is for reference only. Actual unit appearance may vary. Outdoor Unit Disassembly 14...
Page 197 Procedure Illustration 1) Remove the screws of the front panel and then remove the front panel (7 screws) (see CJ_E30_005). CJ_E30_005 2) Remove the screws of the right panel and then remove the right panel (10 screws) (see CJ_E30_006). CJ_E30_006 Note: This section is for reference only.
Page 198: Electrical Parts
Electrical parts Antistatic gloves must be worn when you disassemble the electronic box. WARNING: Note: Remove the air outlet grille(refer to 3.1 Panel Plate) before disassembling electrical parts. 1. PCB board 1 Procedure Illustration 1) Remove the screws of the top cover. CJ_ODU_PCB_001- (2 screws) (see 1 ).
Page 199 2. PCB board 2 Procedure Illustration 1) Unﬁx the hooks and then open the electronic control box cover (4 hooks) CJ_ODU_PCB_002-1 ). (see 4-Way Valve 2) Disconnect the connector for fan CJ_ODU_PCB_002-1 motor from the ele ctronic control CJ_ODU_PCB_002-2 ). board (see 3) Remove the connector for the Reactor...
Page 200 3. PCB board 3 Procedure Illustration 1) Remove the screws and unﬁx the hooks, then open the electronic control box cover (5 screws and 2 CJ_ODU_PCB_003-1 ). hooks )(see Note:Electric control box cover cannot be removed, so the voltage between P and N cannot be measured.
Page 201 4. PCB board 4 Procedure Illustration 1) Remove the screws of the top cover. CJ_ODU_PCB_004- (1 screws) (see 1 ). CJ_ODU_PCB_004-1 2) Unﬁx the hooks and then open the electronic control box cover (5 hooks) CJ_ODU_PCB_004-2 ). (see CJ_ODU_PCB_004-2 3) Disconnect the connector for fan motor from the IPM board (see ODU_PCB_004-3 ).
Page 202 Procedure Illustration 5) Pull out the wire connected with the CJ_ODU_PCB_004-4 ). terminal. (see T3/T4 6) Pull out connectors of the condenser coil temp. sensor(T3),outdoor ambient temp. sensor(T4) and discharge temp. CJ_ODU_PCB_004-4 ). sensor(TP) (see 7) Disconnect the electronic expansion CJ_ODU_PCB_004- valve wire (see Fig 4 ).
Page 203 5. PCB board 5 Procedure Illustration 1) Unﬁx the hooks and then open the electronic control box cover (4 hooks) CJ_ODU_PCB_005-1 ). (see 2) Disconnect the connector for outdoor DC fan from the ele ctronic CJ_ODU_ control board (see PCB_005-2 ). 3) Remove the connector for the CJ_ODU_PCB_005- compressor (see...
Page 204 6. PCB board 6 Procedure Illustration 1) Unﬁx the hooks and then open the electronic control box cover (4 hooks) CJ_ODU_PCB_006-1 ). (see CJ_ODU_PCB_006-1 2) Remove 8 screws on the ele ctronic control board and then turn over the electronic control board (see CJ_ODU_ PCB_006-2 ).
Page 205 Procedure Illustration 3) Pull out the two blue wires connected with the four way valve. connect to IPM board PFC Inductor CJ_ODU_ PCB_006-3 )(for heat (see T3&T4 Compressor pump models) 4) Pull out connectors of the condenser coil temp. sensor(T3),outdoor ambient temp.
Page 206 7. PCB board 7 Procedure Illustration 1) Unﬁx the hooks and then open the electronic control box cover (4 hooks) CJ_ODU_PCB_007-1 ). (see CJ_ODU_PCB_007-1 2) Remove 4 screws on the ele ctronic control board and then remove the electronic control box subassembly. CJ_ODU_ PCB_007-2 ).
Page 207 Procedure Illustration 3) Remove two screws and then remove the electronic control box subassembly on partition board CJ_ODU_ PCB_007- assembly. (see 3 ). CJ_ODU_PCB_007-3 Note: This section is for reference only. Actual unit appearance may vary. Outdoor Unit Disassembly 25...
Page 208 Procedure Illustration 6) Remove two screws and two connectors and then remove the CJ_ODU_ inverter control board (see PCB_007-4 ). Connect to CN301 Connect to FM1 CJ_ODU_PCB_007-4 Note: This section is for reference only. Actual unit appearance may vary. Outdoor Unit Disassembly 26...
Page 209 8. PCB board 8 Procedure Illustration 1) Remove 2 screws to disconnect the power supply wires. (see CJ_ODU_ PCB_008-1) 2) Remove 3 screws to disconnect ground wires. (see CJ_ODU_ PCB_008-1) 3) Disconnect the wires connected to main control board. (see CJ_ODU_ PCB_008-1) 4) Disconnect the wires between main control board and IPM module board.
Page 210 Procedure Illustration 1) Remove 2 screws to disconnect the power supply wires. (see CJ_ODU_ PCB_008-2) 2) Remove 3 screws to disconnect the wires connected to the compressor. (see CJ_ODU_PCB_008-2) 3) Remove 3 screws to remove the radiator. (see CJ_ODU_PCB_008-2) 4) Disconnect the wires between IPM module board and main control board.
Page 211 Procedure Illustration 1) Remove the 1 screw and disconnect the wires and then remove the key CJ_ODU_ PCB_008-4 )(for board.(see some models) CJ_ODU_PCB_008-4(for some models) Note: This section is for reference only. Actual unit appearance may vary. 9. PCB board 9 Procedure Illustration 2) Remove 3 screws to disconnect the...
Page 212 Procedure Illustration 7) Remove 3 screws to disconnect the power supply wires. (see CJ_ODU_ PCB_009-1) 8) Remove 3 screws to disconnect ground wires. (see CJ_ODU_ PCB_009-1) 9) Disconnect the wires connected to main control board. (see CJ_ODU_ PCB_009-2) 10) Remove the 4 screws and unﬁx the 4 hooks and then remove the ﬁlter CJ_ODU_ PCB_009-2 ) board.(see...
Page 213 10. PCB board 10 Procedure Illustration 1) Unﬁx the hooks and then open the electronic control box cover (4 hooks) CJ_ODU_PCB_010-1 ). (see CJ_ODU_PCB_010-1 2) Remove 6 screws on the ele ctronic control board and then remove the electronic control box subassembly. CJ_ODU_ PCB_010-2 ).
Page 214 Procedure Illustration 3) Pull out the connector, remove one screw and then remove the key board subassembly on terminal CJ_ODU_ PCB_010-3 ) board. (see (for some models) . CJ_ODU_PCB_010-3 Note: This section is for reference only. Actual unit appearance may vary. Outdoor Unit Disassembly 32...
Page 215 11. PCB board 11 Procedure Illustration 1) Disconnect the connector for compressor and release the ground CJ_ODU_ wire(1 screw). (see PCB_011-1 ). 2) Remove the electronic control CJ_ODU_ box subassembly. (see CJ_ODU_PCB_011-1 PCB_011-2 ). Note:Electric control box cover cannot be removed, so the voltage between P and N cannot be measured.
Page 216 12. PCB board 12 Procedure Illustration 1) Pull out the connectors (see ODU_PCB_012-1 ). 2) Remove the 9 screws and unﬁx the 3 hooks and then remove the electronic control board(see ODU_PCB_012-2 ). CJ_ODU_PCB_012-1 3) Disconnect the wires connected to main control board.
Page 217 13. PCB board 13 Procedure Illustration 1) Remove 4 screws unﬁx the radiator . (see CJ_ODU_PCB_013-1) 2) Remove 3 screws unﬁx the electronic control box assembly and partition board. (see CJ_ODU_PCB_013-1) 3) Remove 2 screws unﬁx the electronic control box assembly and terminal board subassembly.
Page 218 Procedure Illustration 5) Disconnect the wires connected to main control board. (see CJ_ODU_ PCB_013-3) 6) Remove the 4 screws and then remove the main control board.(see CJ_ODU_ PCB_013-3 ) 7) Remove 1 screw to remove the key CJ_ODU_ PCB_013-3 ). board .(see CJ_ODU_PCB_013-3 8) Disconnect the wires between ﬁlter...
Page 219 Procedure Illustration 10) Remove the 2 screws and then remove the DR module box CJ_ODU_ subassembly.(see PCB_013-5 )(DR module box subassembly is on the back of the electronic control box assembly)(for some models) CJ_ODU_PCB_013-5(for some models) 11) Remove the 2 screws and then remove the DR module board.(see CJ_ODU_PCB_013-6 )(for some models)
Page 220 14. PCB board 14 Procedure Illustration 1) Unﬁx the hooks and then open the electronic control box cover (4 hooks) CJ_ODU_PCB_014-1 ). (see CJ_ODU_PCB_014-1 2) Remove 6 screws on the ele ctronic control board and then remove the electronic control box subassembly. CJ_ODU_ PCB_014-2 ).
Page 221 Procedure Illustration 3) Remove the 1 screw and disconnect the wires and then remove the 24V CJ_ODU_ PCB_014-3 )(for board.(see some models) CJ_ODU_PCB_014-3(for some models) Note: This section is for reference only. Actual unit appearance may vary. Outdoor Unit Disassembly 39...
Page 222: Fan Assembly
2.3 Fan Assembly Note: Remove the panel plate (refer to 3.1 Panel Plate) before disassembling fan. Procedure Illustration 1) Remove the nut securing the fan with a spanner (see CJ_ODU_ FAN_001-1&2). 2) Remove the fan. CJ_ODU_FAN_001-1 CJ_ODU_FAN_001-2 Note: This section is for reference only. Actual unit appearance may vary. Outdoor Unit Disassembly 40...
Page 223: Fan Motor
Fan Motor Note: Remove the panel plate and the connection of fan motor on PCB (refer to 3.1 Panel Plate and Electrical parts ) before disassembling fan motor. Procedure Illustration 3) Remove the ﬁxing screws of the fan motor (4 screws) (see CJ_ODU_MOTOR_001). 4) Remove the fan motor.
Page 224: Sound Blanket
Sound blanket Note: Remove the panel plate (refer to 3.1 Panel plate) before disassembling sound blanket. Procedure Illustration 1) Remove the sound blanket (side and top) (see CJ_ODU_BLANKET_001). Sound Blanket(top) (Applicable to models with blanket) Sound Blanket(side) (Applicable to models with blanket) CJ_ODU_BLANKET_001 Note: This section is for reference only.
Page 225: Four-Way Valve
Four-way valve (for heat pump models) WARNING: Evacuate the system and conﬁrm that there is no refrigerant left in the system before removing the four-way valve and the compressor. (For R32 & R290, you should evacuate the system with the vacuum pump; ﬂush the system with nitrogen;...
Page 226: Compressor
2.7 Compressor WARNING: Evacuate the system and conﬁrm that there is no refrigerant left in the system before removing the four-way valve and the compressor. (For R32 & R290, you should evacuate the system with the vacuum pump; ﬂush the system with nitrogen;...
Page 227 Procedure Illustration 3) Remove the hex nuts and washers securing the compressor, located on the bottom plate (see CJ_ODU_COMP_003). CJ_ODU_COMP_003 Suction Pipe 4) Heat up the brazed parts and then remove the the discharge pipe and the suction pipe (see CJ_ODU_COMP_004). Discharge Pipe 5) Lift the compressor from the base pan assembly with pliers.
Page 229 115.266 12.6431 2.35774 0.62973 108.146 12.0561 2.27249 0.61148 101.517 11.5 2.19073 0.59386 96.3423 10.9731 2.11241 0.57683 89.5865 10.4736 2.03732 0.56038 84.219 1.96532 0.54448 79.311 9.55074 1.89627 0.52912 74.536 9.12445 1.83003 0.51426 70.1698 8.71983 1.76647 0.49989 66.0898 8.33566 1.70547 0.486 62.2756 7.97078 1.64691 0.47256...
Page 230 °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm 542.7 68.66 13.59 3.702 511.9 65.62 13.11 3.595 62.73 12.65 3.492 455.9 59.98 12.21 3.392 430.5 57.37 11.79 3.296 406.7 54.89 11.38 3.203 384.3 52.53 10.99 3.113...
Page 231 ODU(DB) °F(°C) 0(-17) 5(-15) 95 (35) (-9.44) (7.22) (23.89) (29.44) (40.56) (46.11) (48.89) IDU(DB/WB) 70/59 (21.11/15) 10.1 10.6 75/63 (23.89/17.22) 10.7 11.2 80/67 (26.67/19.44) 11.2 11.9 90/73 (32.22/22.78) 10.5 10.3 10.0 10.6 12.4 13.0 70/59 (21.11/15) 75/63 (23.89/17.22) 80/67 (26.67/19.44) 90/73 (32.22/22.78) 70/59 (21.11/15) 0.64...
Page 232 ODU(DB/WB) 57/53 47/43 37/33 27/23 17/13 (-8.33/- 0/-2 -17/-18 °F(°C) (13.89/11.67) (8.33/6.11) (2.78/0.56) (-2.78/-5) 10.56) (-17/-19) (-27/-28) IDU(DB) 55(12.78) 30.3 28.5 25.3 22.8 20.8 18.5 16.5 65(18.33) 32.5 30.0 26.6 25.4 23.3 20.5 19.0 75(23.89) 33.8 31.5 27.8 26.3 24.9 21.5 20.0 55(12.78)
Page 233 ODU(DB) °F(°C) 0(-17) 5(-15) 95 (35) (-9.44) (7.22) (23.89) (29.44) (40.56) (46.11) (48.89) IDU(DB/WB) 70/59 (21.11/15) 75/63 (23.89/17.22) 80/67 (26.67/19.44) 90/73 (32.22/22.78) 70/59 (21.11/15) 75/63 (23.89/17.22) 80/67 (26.67/19.44) 90/73 (32.22/22.78) 70/59 (21.11/15) 0.40 0.41 0.46 0.50 0.51 0.49 0.51 0.54 0.63 0.66 75/63 (23.89/17.22)
Page 234 ODU(DB/WB) 57/53 47/43 37/33 27/23 17/13 (-8.33/- 0/-2 -17/-18 °F(°C) (13.89/11.67) (8.33/6.11) (2.78/0.56) (-2.78/-5) 10.56) (-17/-19) (-27/-28) IDU(DB) 55(12.78) 18.9 17.8 15.8 14.3 13.0 11.6 10.3 65(18.33) 20.3 18.8 16.6 15.9 14.6 12.8 11.9 75(23.89) 21.1 19.7 17.3 16.4 15.6 13.4 12.5 55(12.78)
Page 235 ODU(DB) °F(°C) 0(-17) 5(-15) 95 (35) (-9.44) (7.22) (23.89) (29.44) (40.56) (46.11) (48.89) IDU(DB/WB) 70/59 (21.11/15) 10.3 10.8 75/63 (23.89/17.22) 10.9 11.4 80/67 (26.67/19.44) 11.4 12.1 90/73 (32.22/22.78) 10.7 10.5 10.2 10.8 12.6 13.3 70/59 (21.11/15) 75/63 (23.89/17.22) 80/67 (26.67/19.44) 90/73 (32.22/22.78) 70/59 (21.11/15) 0.65...
Page 236 ODU(DB/WB) 57/53 47/43 37/33 27/23 17/13 (-8.33/- 0/-2 -17/-18 °F(°C) (13.89/11.67) (8.33/6.11) (2.78/0.56) (-2.78/-5) 10.56) (-17/-19) (-27/-28) IDU(DB) 55(12.78) 30.9 29.1 25.8 23.3 21.2 18.9 16.8 65(18.33) 33.2 30.6 27.1 25.9 23.8 20.9 19.4 75(23.89) 34.5 32.1 28.4 26.8 25.4 21.9 20.4 55(12.78)
Page 237 Pressure Temperature Pressure Temperature °C °F °C °F 14.5 -41.091 -41.964 1600 41.748 107.146 21.75 -32.077 -25.739 1650 16.5 239.25 43.029 109.452 -25.177 -13.319 1700 246.5 44.281 111.706 36.25 -19.508 -3.114 1750 17.5 253.75 45.506 113.911 43.5 -14.654 5.623 1800 46.706 116.071 50.75...
Page 238 Pressure Temperature Pressure Temperature °C °F °C °F 14.5 -51.623 -60.921 2350 23.5 340.75 38.817 101.871 21.75 -43.327 -45.989 2400 39.68 103.424 -36.992 -34.586 2450 24.5 355.25 40.531 104.956 36.25 -31.795 -25.231 2500 362.5 41.368 106.462 43.5 -27.351 -17.232 2550 25.5 369.75 42.192...
Page 239 Pressure Temperature Pressure Temperature °C °F °C °F 14.5 -51.909 -61.436 1850 18.5 268.25 28.425 83.165 21.75 -43.635 -46.543 1900 275.5 29.447 85.005 -37.323 -35.181 1950 19.5 282.75 30.448 86.806 36.25 -32.15 -25.87 2000 31.431 88.576 43.5 -27.731 -17.916 2050 20.5 297.25 32.395...

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North American HVAC Products MCBU-06HRFN1-MV0W Service Manual

Section 1

Section 2

Section 3

1 Display Function

2 Safety Features

3 Basic Functions

4 Optional Functions

5 Remote Controller Functions

Section 4

Section 5

1 Outdoor Unit Table

2 Outdoor Unit Disassembly

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