Air-Con Multi Split
From Technical Support Wiki
As we transition to the more efficient 22-21 SEER Multi Splits, please pardon our dust as we rebuild this wiki page to reflect our new units. All information on the 16 SEER units are now under the Legacy Support menu. Thank you.
This is the support page for the 22-21 SEER Air-Con Multi Split line. If you're looking for our 16 SEER models please visit the Air-Con Multi Split 16 SEER page.
| Multi Zone Mini Split Line | |
 | |
| Voltage | 220V |
|---|---|
| SEER Rating | 21-22 |
| Capacities (Outdoor Unit) | 18,000 - 42,000 BTU |
| Capacities (Indoor Unit) | 9,000 - 24,000 BTU |
| Heat Pump? | Yes |
| Model Sold From | June 2017 - Present |
Indoor Units (Wall Mount Type)
- AMTEM4H4R09
- A16EW4H4R09 (Legacy)
- AMTEM4H4R12
- A16EW4H4R12 (Legacy)
- AMTEM4H4R18
- A16EW4H4R18 (Legacy)
- A16EW4H4R24
Indoor Units (Cassette Type)
Indoor Units (Ducted Type)
Indoor Units (Floor & Ceiling Type)
Outdoor Units
Possible Combinations
These are the recommended indoor-outdoor unit combinations.
| Zones | Outdoor Unit | Indoor Units | Indoor Units | Indoor Units | Indoor Units | Indoor Units | Indoor Units | Indoor Units | Indoor Units |
| Dual Zone | AMTCM4H4R18 | A16EW4H4R09 | A16EW4H4R09 | A16EW4H4R18 | |||||
| A16EW4H4R09 | A16EW4H4R12 | ||||||||
| Tri Zone | AMTCM4H4R24 | A16EW4H4R09 | A16EW4H4R09 | A16EW4H4R12 | A16EW4H4R09 | A16EW4H4R18 | |||
| A16EW4H4R09 | A16EW4H4R09 | A16EW4H4R12 | A16EW4H4R12 | ||||||
| A16EW4H4R09 | |||||||||
| Quad Zone |
|
A16EW4H4R09 | A16EW4H4R12 | A16EW4H4R12 | A16EW4H4R09 | A16EW4H4R18 | |||
| A16EW4H4R09 | A16EW4H4R12 | A16EW4H4R12 | A16EW4H4R09 | A16EW4H4R18 | |||||
| A16EW4H4R09 | A16EW4H4R12 | A16EW4H4R09 | A16EW4H4R18 | ||||||
| A16EW4H4R09 | |||||||||
| Quint Zone | AMTCM4H4R42 | A16EW4H4R09 | A16EW4H4R12 | A16EW4H4R09 | A16EW4H4R09 | A16EW4H4R09 | A16EW4H4R12 | A16EW4H4R18 | A16EW4H4R09 |
| A16EW4H4R09 | A16EW4H4R12 | A16EW4H4R09 | A16EW4H4R09 | A16EW4H4R09 | A16EW4H4R12 | A16EW4H4R18 | A16EW4H4R12 | ||
| A16EW4H4R09 | A16EW4H4R12 | A16EW4H4R12 | A16EW4H4R12 | A16EW4H4R09 | A16EW4H4R12 | A16EW4H4R12 | A16EW4H4R18 | ||
| A16EW4H4R09 | A16EW4H4R12 | A16EW4H4R18 | A16EW4H4R12 | A16EW4H4R12 | A16EW4H4R09 | ||||
| A16EW4H4R09 |
- Note: Each indoor unit combination is viewed as a column.
- Note: Both quad zone outdoor units are capable of the same combinations but make your judgement on the correct one to use based on room size.
- Note: There are more possible combinations than those listed above. Please use proper capacity judgment when making multi-split combinations.
Error Codes
| Error Code | Error Description |
| U8 | Zero Cross Detection Circuit Malfunction (Indoor Unit) |
| C5 | Malfunction Protection of Jumper Cap (Indoor Unit) |
| H6 | Indoor Unit Motor Feedback (Indoor Unit) |
| F1 | Indoor Ambient Temperature Sensor is Open/Short Circuited |
| F2 | Indoor Evaporator Temperature Sensor is Open/Short Circuited |
| B5 | Liquid Valve Temperature Sensor is Open/Short Circuited |
| B7 | Gas Valve Temperature Sensor is Open/Short Circuited |
| P7 | Modular Temperature Sensor is Open/Short Circuited |
| F3 | Outdoor Ambient Temperature Sensor is Open/Short Circuited |
| F4 | Outdoor Condenser Middle Pipe Temperature Sensor is Open/Short Circuited |
| F5 | Outdoor Discharge Temperature Sensor is Open/Short Circuited |
| E6 | Communication Malfunction |
| U1 | Phase Current Detection Circuit Malfunction |
| P8 | Module High Temperature Protection |
| F0 | Insufficient Refrigeration System Protection |
| PU | Capacitor Charging Malfunction |
| E1 | High Pressure System Protection |
| E3 | Lower Pressure System Protection |
| H3 | Compressor Overload Protection |
| LP | Indoor Units and Outdoor Units Are Incompatible |
| EE | Memory Chip Malfunction |
| DN | Wrong Connection of Communication Wire or Electronic Expansion Valve Malfunction |
| L3 | Malfunction Protection of Outdoor Fan 1 |
| DD | Wrong Connection of Communication Wire or Electronic Expansion Valve Malfunction Status Detected |
| E7 | Mode Conflict |
| FO | Refrigerant Recycling Mode |
| AL | Cross Fan |
| H1 | Defrosting or Oil Return in Heating Mode |
| LC | Compressor Failed to Start |
| E4 | Compressor High Discharge Temperature Protection |
| E8 | Overload Protection |
| E5 | Whole Unit Overcurrent Protection |
| P5 | Compressor Phase Current Protection |
| H7 | Compressor Desynchronizing |
| LD | Compressor Phase-lacking/Phase-inverse Protection |
| H5 | IPM Modular Protection |
| PL | Direct Current Bus-Bar Low Voltage Protection |
| PH | Direct Current Bus-Bar High Voltage Protection |
| HC | PFC Protection |
| U7 | 4-Way Valve Abnormal |
Document Downloads
- Outdoor Unit User Manual (18K)
- Outdoor Unit User Manual (24, 30, 36K)
- Outdoor Unit User Manual (42K)
- Indoor Unit (Wall Mount) User Manual
- Outdoor Unit Service Manual (18, 24K)
- Outdoor Unit Service Manual (30, 36, 42K)
- Indoor Unit (Wall Mount) Service Manual
- Multi Split Submittal Sheet
Warranty Information
Each Multi Split unit set has a warranty of 5 years for parts and 7 years for the compressor. If you need more information, please visit the Air-Con Warranty Policy page.