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Summary of Contents for Daitsu DS-9KIDT
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Page 1: Table Of Contents
Air Conditioner Service Manual Inverter air conditioner Service Manual Models DAITSU CONTENTS DAITSU 1. Important Notice Product Dimensions 3. Refrigeration cycle diagram 4. Operation details 5. Wiring diagram 6. Explosion view and parts 7. Precaution 8. Names of parts 9. Installation 10. -
Page 2: Important Notice
Air Conditioner Service Manual 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: Outdoor Unit:... - Page 4 DS-9KIDT(W)_DOS-9KIDT(W) DS-12KIDT(W)_DOS-12KIDT(W) DS-18KIDT(W)_DOS-18KIDT(W) DS-24KIDT(W)_DOS-24KIDT(W) Type heating pump heating pump heating pump heating pump Control type remote controller remote controller remote controller remote controller Cooling capacity 2630(960~3120) 3330(1080~3770) 5130(1250-5920) 6810(1830~7810) Heating capacity 2730(950~3380) 3380(1010~3940) 5230(1350-6280) 6870(1850~7930) SEER Energy Class SCOP Energy Class...
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Page 5: Refrigeration Cycle Diagram
Air Conditioner Service Manual 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... -
Page 6: Operation Details
Air Conditioner Service Manual Operation Details ON/OFF button Remote controller 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 7 Air Conditioner Service Manual 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 8 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. Difference inlet temperature of outdoor unit is adapted by difference compressor running frequency.
- Page 9 Air Conditioner Service Manual 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: RT ST t come up t come down High fan Min fan Low fan...
- Page 10 Air Conditioner Service Manual 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.
- Page 11 Air Conditioner Service Manual 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...
- Page 12 Air Conditioner Service Manual 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...
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Page 13: Precaution
Air Conditioner Service Manual 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. - Page 14 Air Conditioner Service Manual 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 15 Air Conditioner Service Manual 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.
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Page 16: Names Of Parts
Air Conditioner Service Manual 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 17 Air Conditioner Service Manual 9. Installation manual 9.1 Installation Details Connecting pipe length Connecting cables...
- Page 18 9.2 Installation for the first time Indoor unit OUTDOOR UNIT...
- Page 19 Air Conditioner Service Manual 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.
- Page 20 Air Conditioner Service Manual 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.
- Page 21 Air Conditioner Service Manual 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.
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Page 22: Installation
Air Conditioner Service Manual 10. Introduction R32/R290 air conditioner installation 1) Introduction to Refrigerants R32 & R290 The refrigerants used for air conditioners are environmentally friendly hydrocarbons R32 and R290. The two kinds of refrigerants are combustible and odorless. Moreover, they can burn and explode under certain condition. - Page 23 Air Conditioner Service Manual It is necessary to choose the place where the inlet and outlet air of the indoor unit is even. It is necessary to avoid the places where there are other electrical products, power switch plugs and sockets, kitchen cabinet, bed, sofa and other valuables right under the lines on two sides of the indoor unit.
- Page 24 Air Conditioner Service Manual concentration of the refrigerant leak detector should not exceed 25% of the lower explosion limit (LEL), the refrigerant leak detector must be working during maintenance. 3) Inspection of air conditioner l It is necessary to ensure that the air conditioner is in reliable ground connection before maintenance.
- Page 25 Air Conditioner Service Manual protective (explosion-proof) devices. l It is necessary to provide firefighting devices such as dry powder or carbon dioxide fire extinguisher appropriate for extinguishing the electrical fire and keep such firefighting devices in a usable condition. l Temporary wires and sockets are prohibited on the maintenance location. 6.
- Page 26 Air Conditioner Service Manual A maintenance station should establish emergency handling plans. It is necessary to take appropriate precautionary measures in work. For example, it is prohibited to enter the location with any kindling material and it is prohibited to wear clothing or shoes which easily produce static. Handling suggestions when a large amount of combustible refrigerant leaks: It is necessary to immediately operate the ventilating equipment while cutting off other power supply and evacuating the affected personnel urgently from the location.
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