Related Manuals for Rotenso KASI K26Vi
Summary of Contents for Rotenso KASI K26Vi
- Page 1 S ervice manual SPLIT WALL MOUNTED TYPE: KASI K26Vi, K26Vo KASI K35Vi, K35Vo KASI K50Vi, K50Vo KASI K70Vi, K70Vo...
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Page 2: Important Notice
1. Important Notice This service manual is intended for use by individuals possessing adequate backgrounds of electrical, electronic and mechanical experience. Any attempt to repair the appliance may result in personal injury and property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use. -
Page 3: Product Dimensions
2. Product Dimensions Indoor Unit: TURBO Outdoor Unit: Model 507.8 277.8 507.8 277.8 327.5 1033... -
Page 4: Refrigeration Cycle Diagram
3. Refrigeration cycle diagram Cooling only Liquid side 2-way valve Capillary Heat exchange Heat exchange (Evaporator) (condenser) Gas side 3-way valve Accumulator Compressor Heat pump Check valve Liquid side 2-way valve Capillary Assembly Heat exchange Heat exchange (Evaporator) (condenser) Gas side 3-way valve 4-way valve Accumulator... -
Page 5: Operation Details
Operation Details Remote controller ON/OFF button To switch the conditioner on and off. ECO button In cooling mode,press this button ,the temperature will increase 2 on the base of setting temperature: In heating mode, press this button, the temperature will decrease 2 on the base of setting temperature. - Page 6 Electronic Controller 1. Safety Protection (1) Time Delay for Safety protection 3 minutes delay for compressor ---The compressor is ceased for 3minutes before restarting to balance the pressure in the refrigeration cycle in order to protect the compressor. 2 minutes delay for 4-way valve---The 4-way valve will be ceased for 2 minutes late after compressor to prevent the refrigerant-gas abnormal noise when the HEATING operation is OFF or switch to the other operation mode.
- Page 7 Rotenso Air Conditioner Service Manual the compressor will run at very low frequency. In general, unit will change its running frequency according to t to make room temperature closing to set temperature. (2) Outdoor temperature affects running frequency of the compressor Outdoor temperature affect compressor’s running frequency.
- Page 8 seconds since the stop of compressor. 2) Auto fan control (heating) In heating mode (include in “I feel” mode) , fan speed is determined by t as the following: t come up t come down RT ST High fan Min fan Low fan (3) 4-way valve control In heating mode, 4-way valve will power on ahead of compressor for 5 seconds, and cut off...
- Page 9 overheat protection. The compressor drops its frequency toward to F1 level until IPT 52 If IPT 52 and keep for 5 minutes, control system doesn’t limit running frequency. If IPT>62 , control system shut down compressor, and recover while IPT drop less than 50 . 6.
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Page 10: Error List
Error list Digital LED Code Failure Type LED Code RUN TIMER –both winking Indoor and outdoor communication failure RUN TIMER –both winking Outdoor communication failure Indoor room temperature sensor (IRT) RUN-1 time/8s Indoor coil temperature sensor (IPT) RUN-2 times /8s Outdoor coil temperature sensor (OPT) RUN-3 times /8s System abnormity... - Page 11 Display on outdoor power source board: blink time (n) Failure IPM protection Over voltage /lower voltage Overcurrent Exhaust over temperature protection Outdoor coil over temperature protection Drive fault and protection (V1 VP1) Communication fault with indoor unit Compressor overheat fault (compressor top switch) Short-circuit / open-circuit fault of outdoor temperature sensor Short circuit / open-circuit fault of outdoor heat exchanger temperature sensor...
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Page 12: Wiring Diagram
5. Wiring diagram MODEL: INDOOR UNIT: OUTDOOR UNIT... - Page 13 MODEL: INDOOR UNIT OUTDOOR UNIT...
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Page 14: Explosion View And Parts
Rotenso Air Conditioner Service Manual 6. Explosion view and parts Mode: INDOOR UNIT:... - Page 15 Mode: INDOOR UNIT:...
- Page 16 Parts List Indoor Unit- Part No. Part Name Q’ty Remark Installation Plate Base Vertical Vane Assembly Cross Fan Bearing Mount Evaporator Face Frame Screw Cover Vane Air Filter Display PCB Box Display PCB Front Panel Power Supply Cord Electrical Box Cover Terminal Cable Clamp Terminal fixing board...
- Page 17 Indoor Unit- Part No. Part Name Q’ty Remark Installation Plate Base Cross Fan Bearing Mount Evaporator Water Drainage Assembly Vertical Vane Assembly A Vertical Vane Assembly B Vane A Vane B Face Frame Screw Cover Air Filter Display PCB Box Display PCB Front Panel Electrical Box Cover...
- Page 18 Mode: OUTDOOR UNIT:...
- Page 19 Mode: INDOOR UNIT:...
- Page 20 OUTDOOR UNIT Model: Part No. Part Name Q’ty Remark Grille Top cover Condenser Outdoor motor supporter Outdoor motor Propeller fan Left grille supporter Front plate Fan guard Compressor and accessories 4-way valve 4-way valve assembly Base Right plate Two-way valve Valve supporter Three-way valve Eelectronic Box Cover...
- Page 21 Outdoor Unit- Part No. Part Name Q’ty Remark Grille Top Cover Condenser Outdoor Motor Supporter Outdoor Motor Propeller Fan Left Grille Supporter Front Plate Fan Guard Compressor And It Accessories 4-way Valve 4-way Valve Assembly Base Right Plate Two-way Valve Valve Supporter Three-way Valve Electrical Box Cover...
- Page 22 7. Precaution 7.1 SAFETY RULES AND RECOMMENDATIONS FOR THE INSTALLATION Read this guide before installing and using the appliance. During the installation of the indoor and outdoor units the access to the working area should be forbidden to children. Unforeseeable accidents could happen. Make sure that the base of the outdoor unit is firmly fixed.
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Page 23: Safety Rules And Recommendations For The User
instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision. 7.2 SAFETY RULES AND RECOMMENDATIONS FOR THE USER Do not try to install the conditioner alone;... -
Page 24: Safety Rules And Prohibitions
Ensure that the appliance is disconnected from the power supply when it will remain inoperative for a long period and before carrying out any cleaning or maintenance. Selecting the most suitable temperature can prevent damage to the appliance. 7.3 SAFETY RULES AND PROHIBITIONS Do not bend, tug or compress the power cord since this could damage it. -
Page 25: Names Of Parts
8.Names of parts INDOOR UNIT Indoor unit 2-3 4 Name Front panel Air filter Special filter(option) Display PCB Vertical vane Horizontal vane Remote controller Outdoor unit Name Air outlet grille Electronic box cover 2-way valve 3-way valve OUTD OOR UNIT... -
Page 26: Installation Manual
9. Installation manual 9.1 Installation Details Connecting pipe length Pipe size(Inch) Model Liquid K26Vi/o 1/4" K35Vi/o K50Vi/o K70Vi/o Outdoor unit Indoor unit Pipre length is: Pipre length is: 20 m max. for K26Vo, K35Vo 20 m max. for K26Vo, K35Vo 30 m max. -
Page 27: Installation For The First Time
Installation for the first time Indoor unit Install the indoor unit level on a strong wall that is not subject to vibrations The inlet and outlet ports should not be Mounting plate obstructed: the air should be able to blow all over 150mm the room. - Page 28 Install the indoor unit at a height of at least 2.5m from the ground. To install, proceed as follows: 9.2.1 Installation of the mounting plate. 1) By using a level, put the mounting plate in a perfect square position vertically and horizontally. 2) Drill 32mm deep holes in the wall to fix the plate.
- Page 29 7).An efficient earth connection must be ensured. 8).If the power cable is damaged, it must be replaced by an authorized Service Centre. 9.2.4 Refrigerant piping connection The piping can be run in the 3 directions indicated by numbers in the picture. When the piping is run in direction 1 or 3, cut a notch along the groove on the side of the indoor unit with a cutter.
- Page 30 4).If the piping is installed to the right, the pipes, power cable and drain hose must be lagged and secured onto the rear of the unit with a pipe connection. Insert the pipe connection into the relative slot. Press to join the pipe connection to the base. 9.2.8 Electronic connections Wiring diagram on the back of the cover 1.
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Page 31: Troubleshooting
10. Trouble shooting 10.1 Outdoor control diagram 10.2 The structure of ODU PCB DC motor Indicator 4-way valve Compressor Expansion Sensor Communication motor driving valve circuit Switch EEPROM Rectifying power Filter circuit filtering circuit supply for heavy current... - Page 32 10.3 Connection of ODU PCB COMP. (S-Black) CN13 CN401 CN12 (OVT) (485-COM) (OHT) (OPTOAT) (CAN-Blue) P5-1 wu v (VAL) CN409 (ACL-Brown) CN12-2 programmed CN11 CN410 (OUTFAN) P10-3(W) U405 P11-1 P11-2 CN12-1 (HEAT) (DC fan motor P10-2(V) feedback) CN407 P10-1(U) For EEPROM programmed P 14 (L D412...
- Page 33 10.5 Examples of repairing 10.5.1 Display E1 or E2 Cause: Room temperature sensor (IRT) and Indoor pipe (coil) temperature sensor (IPT) or indoor main PCB fault. Solution: 1) Check the connecter of sensor and slot (CN6), if loose please connect again. 2) Measure the resistance on the two ends of indoor temperature sensor, if short or broken please replace it.
- Page 34 2) Measure the resistance on the two ends of indoor temperature sensor, if short or broken please replace it. 3) If the above testing is normal, please replace the outdoor PCB. 10.5.4 Display E0,E5 Cause: Indoor / outdoor communication fault. Solution: 1) Check if the indoor and outdoor connections are correct.
- Page 35 10.5.5 Display EA Cause: Current sensor fault Solution: Check for refrigerant leakage, to find the leakage point and recharge the refrigerant. Current sampling circuit broken on the outdoor PCB and replace outdoor PCB. 10.5.6 Display E9 first display P0 or P9 Cause: Outdoor PCB drive circuit broken.
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Page 36: Malfunction (Parts) Check Method
10.6 MALFUNCTION (PARTS) CHECK METHOD 10.6.1 Procedure for determining defective outdoor unit IPM/compressor The following flow chart shows a procedure for locating the cause of a malfunction when the compressor does not start up and a DC overcurrent indication error occurs. Use the remote operates the air conditioner Connects wire... - Page 37 10.6.2 DC Over Current Error Error memory is recorded Start Are valves (2-way or 3-war) close? Full open stop valves Does compressor rotates? Does compressor rotates more than 30 seconds? IPM PWB floating from the heat sink IPM PWB with screws securely.
- Page 38 10.6.3 E0,E5 Error Replace inverter board and power Display E5 Start supply board or outdoor PCB assembly Display E0 Display E5 Display E5 Shut off power and supply Shut off power and Replace inverter board supply again again and observe 10 Mins Display E0 Display E0 first and then Connects the...
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Page 39: Thermistor Temperature Characteristics
10.7 THERMISTOR TEMPERATURE CHARACTERISTICS 1. Indoor unit and outdoor exchange temperature and outside air temperature sensor temperature characteristics TEMP. Resistance Voltage of TEMP. Resistance Voltage of TEMP. Resistance Voltage of (k Ohm) resistance (k Ohm) resistance (k Ohm) resistance 63.513 4.628 7.447 2.968... - Page 40 Resistance at 2 5 k . TH1: indoor room temperature sensor and outside air temperature sensor TH2: indoor exchange temperature sensor and outside exchange temperature sensor Before measuring resistance, disconnect connectors as shown above. 2. Outdoor unit sensor temperature characteristics TEMP.
- Page 41 63.74 70.48 77.87 6.309 6.655 7.013 1.073 1.12 1.168 60.69 67.05 6.08 6.409 6.748 1.042 1.089 1.136 57.81 63.8 70.34 5.861 6.173 6.495 1.013 1.058 1.104 55.08 60.72 66.88 5.651 5.947 6.253 0.9833 1.028 1.074 52.49 57.81 63.61 5.449 5.73 6.02 0.9553 0.9997...
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