Hello All,

I have recently moved into a new home that has the following Daikin ducted air conditioner set up:

Outdoor Unit: RZQ150HY4A (Super Inverter)
Indoor Unit: FDYQ160KAV1
Controller: BRC1E61

When in heating mode the system seems to behave more like a traditional single speed air conditioner.

When the thermostat calls for heat (even if it's only 1c off set point) the outdoor unit fires up, ramps to a very high speed within a minute or two and will stay there until the thermostat is satisfied. It's at this time the system simply shuts off and the whole process repeats the next time the thermostat calls for heat. It doesn't appear that the outdoor unit modulates down at all, it simply ramps down quickly and turns off.

When in cooling mode the system operates like any other inverter, you can audibly hear the outdoor unit modulate up and down over time.

There are no errors or other anomalies to report.

Cheers,

bzerk