IQ B6 R410a Cassette Air Conditioner | Commercial & Large Space Cooling

B6 R410a Inverter Cassette

B6 R410a Inverter Cassette  

The B6 Inverter Cassette unit delivers high-efficiency climate control powered by advanced DC inverter technology that saves up to 30% energy.

 Engineered for superior performance and exceptional durability, it features a 5-fold evaporator that increases heat efficiency by 12% compared to traditional models.

MODEL: 
Sizes From : 18-60k BTU

  • Description
  • Error Codes

B6 Inverter Cassette Unit

Inverter Compressor
The compressor adopts the latest DC inverter technology, which greatly improves performance and saves up to 30% energy.

5-Fold Exchanger
Adopts a 5-fold evaporator, which features a larger heat exchange area and a 12% increase in heating efficiency compared to traditional 4-fold evaporators.

Refrigerant-Cooling PCB
Advanced refrigerant-cooling technology is utilized to dramatically improve heat dissipation from the PC Board. This ensures safe, stable operation and significantly prolongs the overall lifespan of the electronics.

New Inverter Technology
Features a patented inverter design engineered without electrolytic capacitors. This permanently solves common failure points such as capacitor bulging, leakage, and associated maintenance issues found in traditional drive schemes.

Coated Circuit Board
The entire printed circuit board is treated with a specialized protective conformal coating to prevent moisture, humidity, and environmental exposure from affecting the electronics.

B6 Inverter Troubleshooting Codes

Download B6 Troubleshooting

If an issue occurs, the display board or wired controller will show one of the following diagnostic codes:

SN Error Code
(Display board / Wired controller)
Description
131Fault with the inverter module protection
235Fault with the over-electric current protection
336Fault with the over-voltage or low voltage protection
438Fault with the Compressor Power supply Phase deficiency protection
53EFault with the compressor start
63HFault with the Fan motor of outdoor unit
7A1Fault with the room temperature sensor (Tico) on the indoor unit
8A2Fault with the temperature sensor (Ticm) on the indoor unit
9A5Fault with the drainage
10A6Fault with the Fan motor of indoor unit
11A9Communication error between the outdoor unit and the indoor unit
12AACommunication error between the wired controller and main PCB of the indoor unit
13AJFault with anti-Frozen protection of indoor unit in heating mode
14C1Fault with the Environmental temperature sensor (Tao) on the outdoor unit
15C3Fault with the discharge temperature sensor
16C6Fault with the suction temperature sensor
17C8Fault with the temperature sensor (Ticm) on the outdoor unit
18E1Fault of four-way valve
19E3Protection high temperature discharge
20E8Fault with anti-high temperature protection of indoor unit in heating mode
21F6Fault with the low pressure
22FHProtection lower temperature discharge
23H1Fault with the High-pressure switch
24H4Fault with the low-pressure switch
25J3Communication error between the driver PCB and main PCB of the outdoor unit
26J6Communication error between the driver PCB and main PCB of the indoor unit
27J7Fault with the outdoor unit EPROM