SERVICE MANUAL Inverter T-series Split System Air Conditioner • T70-R410i 7.5kW Split System Inverter www.ayre.com.
Service Manual • Inverter T-series Split System Air Conditioner Contents 1. Important notice................................................................ 2 2. Technical specifications................................................... 3 3. Operation details................................................................ 4 4. Wiring diagram.................................................................11 5. Explosion view – indoor unit.......................................12 6.
Service Manual • Inverter T-series Split System Air Conditioner 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.
Service Manual • Inverter T-series Split System Air Conditioner Technical specifications Model No. T70-R410i Compressor Inverter Control type Remote Rated cooling capacity W 7,000 Rated heating capacity W 7,500 EER for cooling W/W 3.00 COP for heating W/W 3.10 Moisture removal Litres/h 2.5 High dB(A) 47 Med.
Service Manual • Inverter T-series Split System Air Conditioner Operation Details Remote controller Remote controller The remote controller transmits signals to the system. 1 ON/OFF button Used to start and stop operation when pressed. 2 SLEEP TIMER ON TMIER OFF FEEL COOL DRY FAN HEAT AUTO HIGH MID LOW SWING 3 3 5 SLEEP FAN 7 2 TIMER SWING 6 ON/OFF 1 8 MODE TIMER button Used to select TIMER operation. UP button (TOO COOL button) Used to increase the set room temperature and time.
Service Manual • Inverter T-series Split System Air Conditioner Electronic Controller 1. Safety Protection (1) Time Delay for Safety protection z 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.
Service Manual • Inverter T-series Split System Air Conditioner (1) Compressor frequency control According to difference room temperature and set temperature(δt = RT -ST), running frequency of compressor is controlled by electronic controller. When room temperature is much higher than set temperature, compressor will start at a high frequency, and as room temperature goes down, compressor running frequency will go down.
Service Manual • Inverter T-series Split System Air Conditioner p u e r u t a r e p m e T g n i t t e s n a f w o l 37℃ e z e e r b 33℃ p o t s 25℃ 34℃ 30℃ n w o d e r u t a r e p m e T 22℃ z In the heating operation, if the air conditioner is turned off, the indoor fan motor will run most for 30 seconds since the stop of compressor. 2. Auto fan control (heating) In heating mode(include in “I feel” mode) , fan speed is determined by δt, as the following: R T -S T ℃ 3.
Service Manual • Inverter T-series Split System Air Conditioner ON OFF ON 4 - w a y v a lv e OFF ON o u td o o r fa n m o to r OFF c o m p re s s o r 20s ≤10m 10s 20s 10s In defrosting, LED showing by winking. Come into or out of defrosting, indoor fan motor speed is the same as Cold Air Prevention Control. One of the following conditions is satisfied, unit come out of defrosting and shift to heating mode: a. Outdoor coil Temperature (OPT) ≥15℃ b. Defrost time keep time for more than 10 minutes.
Service Manual • Inverter T-series Split System Air Conditioner some reason, when power supply come back again, the AUTO-RESTART function will set synchronously and automatically to work. So the air conditioner would work at the same mode before. Auto-restart Pre-setting (optional): If Auto-restart function is needed, follow the steps below to activate this function: 1) Pulling the air-con's plug out of socket.
Service Manual • Inverter T-series Split System Air Conditioner Protection display code list: Protection type LED CODE DIGITAL LED CODE RUN-winking,TIMER-1 time/8s P1 Over current RUN- winking,TIMER-2 times /8s P2 Discharge temperature RUN- winking,TIMER-4 times /8s P4 Over cooling in cooling mode RUN-light,TIMER-5 times /8s P5 Over heating in cooling mode RUN- light,TIMER-6 times /8s P6 Over heating in heating mode RUN- light,TIMER-7 times /8s P7 Outdoor temperature too high or low RU
Service Manual • Inverter T-series Split System Air Conditioner WIRING DIAGRAM MODEL: T 5 L INDOOR UNIT: OUTDOOR UNIT: 11
Service Manual • Inverter T-series Split System Air Conditioner EXPLOSION VIEW MODEL: 7 5 L INDOOR UNIT: 1 2 29 3 28 4 5 27 6 26 25 7 24 8 23 9 22 21 10 20 19 11 18 17 12 16 13 14 15 12
Service Manual • Inverter T-series Split System Air Conditioner Indoor Unit 7 5 L No.
Service Manual • Inverter T-series Split System Air Conditioner EXPLOSION VIEW MODEL: 7 5 L OUTDOOR UNIT: 7 6 4 5 3 1 2 28 27 8 26 25 24 9 23 22 21 20 19 18 17 10 11 12 14 13 14 15 16
Service Manual • Inverter T-series Split System Air Conditioner Outdoor Unit- 7 5 L No.
