Air-cooled Inverter Product Range

1. Air-cooled Inverter Product Range Updated by: Yap Boon Thiam Technical Engineer Email: yapbt@oyl.com.my Date: 14/5/2012

2. Inverter Product Range • Contents: • Product Range: • Single Split Inverter (Series I) • Single Split Inverter (Series II) • Multi Split Inverter • Inverter Control • Troubleshooting Guidelines

3. Inverter Product Range Single Split Inverter Series I

4. Inverter Product Range Single split Inverter Series I – A5LCY 5WMY-JR 5WMY-LR 5CKY-ER 5CMY-ER 5CCY-CR

5. Inverter Product Range Wall Mounted – A5WMY New Vs A5WMY10/15LR A5WMY10/15JR

6. Inverter Product Range A5WMY-Features • High EER/COP performance. • ALL Models rank A/A or Exceeds! • High Quality & Efficiency DC Inverter compressor

7. Inverter Product Range A5WMY-Features • BioPro IAQ. • Protection 1 • Bio Antibody Filter • Able to eliminate up to 99.99% of various airborne infectious viruses • Deactivates influenza virus • Protection 2 • Titanium Apatite Filter • Dissolves odors and harmful airborne particles like dust, bacteria • -Enhance photo catalytic capability • Note: Standard for LR series and Optional for JR series

8. Inverter Product Range A5WMY-Features • New Remote Control • Turbo Mode- Fast cooling • Quiet Mode • Error code diagnosis GS02

9. Inverter Product Range A5LCY Series 1- Specification • Maximum piping length and elevation

10. Inverter Product Range A5LCY Series I- Features • Outdoor Control Box • Made of plastic material • More compact and lighter A5LCY-DR A5LCX-CR New

11. Inverter Product Range A5LCY Series I- Features • Ease for Servicing • Equipped with 7 segment display • Able to retrieve error code and running parameter

12. Inverter Product Range A5LCY Series I- Features • Thermistor New Heat sink thermistor to detect heat sink temperature

13. Inverter Product Range Single Split Inverter Series II

14. Inverter Product Range Single split Inverter Series II – A5LCY 5CKY-ER 5CMY-ER 5CCY-CR

15. Inverter Product Range Ceiling Cassette – A5CKY-ER Features • Improve sound level • Equipped with a newly-developed turbo fan • 4 selected fan speeds inclusive of Quiet mode Improved!

16. Inverter Product Range Ceiling Cassette – A5CKY-ER Features • Optimum air discharge • Multi comfort 3 air swing pattern CK-A CK-E

17. Allow 90°Rotation Inverter Product Range Ceiling Cassette – A5CKY-ER Features • Modern and Elegant design • Unique “Round” side contour • Side LED light location • Even air distribution • Rotatable intake grill A5CKY-ER A5CKY-AR

18. A B C Inverter Product Range Ceiling Cassette – A5CKY-ER Features • Compact Body Design A5CKY20-28ER 290mm A5CKY40-50ER 325mm A5CKY20-50AR 350mm Lower Height!

19. Inverter Product Range Ceiling Cassette – A5CKY-ER Features • Built in high head drain pump • 700mm drain head • Water level switch is incorporated with drain pump to monitor its water level

20. Inverter Product Range Ceiling Convertible– A5CMY Features • Automatic air swing • The motorized louver enables the air flow to be evenly distributed • Maximum piping length and elevation

21. Inverter Product Range Ceiling Convertible– A5CMY Features • Optional drain pump • Flexible installation at side • 700mm drain head

22. Inverter Product Range LED Indicator- A5LCY28CR

23. Inverter Product Range LED Indicator- A5LCY40/50/60FR

24. Inverter Product Range Multi Split Inverter

25. Inverter Product Range Multi-split Inverter – A5MSY 5WMY10/15LR 5WMY10/15/20JR 5CMY15/20ER 5CCY10/15/20CR 5CKY10/15/20CR 5CKY20ER

26. Inverter Product Range A5MSY18BR • Focus on residential market with 1 Bedroom + 1 Living Room • More compact design and cost effective

27. Inverter Product Range A5MSY- Specification • Maximum piping length and elevation

28. Inverter Product Range A5MSY- Features • Better Energy Saving • Achieve class A/A based on European Energy Efficiency Class ratings

29. Inverter Product Range A5MSY- Features • Outdoor Control Box • Made of plastic material • More compact and lighter A5MSY-BR A5MSX-AR

30. Inverter Product Range A5MSY- Features • LED light error indicator (self error diagnosis)

31. Inverter Product Range A5MSY - Features • More feedback (Thermistors) • Outdoor unit has more feedbacks New New New

32. Inverter Product Range A5MSY- Features • Outdoor Fan Motor • Compressor and Expansion Device • Has a higher EER, lower vibration & noise and higher durability

33. Inverter Product Range A5MSY - Features • Wiring Error Check • Self corrected wiring connection just pressing a button (SW3) • After self-correction, OD will change the address in memory so that EXV A is link to Port B. • Note: Wire check correction need to be carried out again if wiring is changed or corrected

34. Inverter Product Range A5MSY - Features • Priority Room Setting • Allow user to set a particular room which takes precedence over the operation mode of other rooms • For example, if Room A is the priority room, when COOL mode is selected in Room A while Room B, C & D are operating in the following mode:

35. Inverter Product Range A5MSY – Literatures Brochure Manuals Installation Manual GS02 Handset Operating Manual

36. Inverter Products Control

37. Inverter Product Range Operating Mode • There are 5 operating modes: • Cool mode • When Tr ≥ Ts - 1.5°C -Comp, ID Fan and OD Fan ON • When Tr ≤ Ts - 2°C ** -Comp and OD Fan OFF, ID Fan remain ON • **When room temperature falling below compressor cut off • point even on the lowest operation frequency, compressor will • stop operates. Tr = Room Temperature Ts = Set Temperature Tr <= Ts - 2°C Comp will stop Lowest Freq Time

38. Inverter Product Range Operating Mode • There are 5 operating modes: • Heat mode • When Ts > Tr - 1.0°C -Comp, ID Fan and OD Fan ON • When Tr ≥ Ts + 1.5°C ** -Comp and OD Fan OFF, ID Fan remain at lowest speed if ID coil ≥ 27°C • **When room temperature rising above compressor cut off • point even on the lowest operation frequency, compressor will • stop operates. Tr = Room Temperature Ts = Set Temperature Tr - Ts ≥ 1.5°C Comp will stop Lowest Freq Time

39. Inverter Product Range Operating Mode • There are 5 operating modes: • Fan mode • Only High, Medium and Low fan speeds are allowed • Changing cool mode to fan mode; the compressor and outdoor fan will stop • Compressor will only ON if the minimum stop time is > 3 minutes if the user change back to cool mode

40. Inverter Product Range Operating Mode • There are 5 operating modes: • Auto mode (for single split) • Mode switching point: • Heating  Cooling • Tr ≥ Ts + 2.5 • Cooling  Heating • Tr ≤ Ts – 2.5 • During initial operation • Cooling operation: Tr > Ts • Heating operation: Tr < Ts Tr = Room Temperature Ts = Set Temperature

41. Inverter Product Range Operating Mode • There are 5 operating modes: • Auto mode (for multi split) • Without Priority Room Setting • If more than 1 indoor is operating, priority is given to the first unit that was turned on • If a unit is turned on later to the same operating mode as the first unit, the unit will operate as normal • If a unit that are turned on later to the different operating mode as the first unit, the units will enter Standby mode • With Priority Room Setting • Unit operation subjected to Priority Room operating mode

42. Inverter Product Range Communication • Communication between ID and OD • Master by outdoor unit • Indoor PCB transmits signal to outdoor PCB every 0.5s. Outdoor unit will response to indoor once the valid data is received • If the data communication line between indoor and outdoor disrupted for 15s continuously; Compressor will stop, OD fan will stop with fan delay timer. ID LED starts blinking error • If the communication resumes within 15s; error code will be cleared and compressor restarts after 3 minutes • If the communication does not resume after 15s; unit unable to restart and ID LED continues to blink

43. Inverter Product Range Minimum Run Control • To prevent frequent compressor ON/OFF and to allow pressure equalization • The compressor will be on 3 minutes stand-by after turning OFF before it is allowed to turn ON • OD fan delay by Off timer to improve pressure equalization and to prevent refrigerant from entering into evaporator

44. Inverter Product Range Auto Restart • Allow unit to automatically resume the same operating mode it was in before a power failure • Factory pre-set • Change over switching is only carried out during operation 4 Way Valve Control

45. Inverter Product Range Defrost Cycle

46. Inverter Product Range Defrost Cycle- A5LCY Series I • Condition for entering defrost • Compressor minimum run time of 6 minutes; OR • Compressor accumulated run time of 45 minutes if OD coil < 3C • When OD coil < 0C AND OD coil < OD air - 10C • Condition for terminating defrost • OD coil > 12C; OR • Total defrost timer of 650 seconds

47. Inverter Product Range Defrost Cycle- A5MSY • Condition for entering defrost • Compressor minimum run time of 6 minutes; OR • Compressor accumulated run time > 38 minutes • Based on OD coil temperature, output frequency & OD air temperature • Condition for terminating defrost • Minimum run time of 120 seconds; AND • Determine based on OD ambient, in the range of 4C ≤ OD coil ≤ 12C; OR • Totaldefrost timer of 650 seconds

48. Inverter Product Range Indoor coil freeze prevention • Outdoor fan control is carried out: • Only available in cooling mode • When the indoor coil temperature < 2°C, the compressor starts to drop the frequency • This protection will cut in when: • Indoor coil temperature < 0°C for more than 180s. • Compressor will stop, OD fan stop after 30s and indoor fan can only run at lowest fan speed • The unit can only be restarted after 3 minutes • When the indoor coil temperature > 13°C, the compressor frequency will be reset based on the OD ambient, room and set temperature

49. Inverter Products Troubleshooting Guidelines

50. Inverter Product Range Error Indication • From Indoor panel • When error occurs, indoor LED display will start • blinking continuously: Green light • The blinking pattern does not indicate of error details • The error details could be retrieved from handset