Series photoDaikin · Ceiling Cassette
~$3,427
Daikin FFA12AVJU9 Four-Way Cassette 12,000 BTU
Rooms where the cassette needs to aim airflow away from a wall or corner.
- BTU/h
- 12k
- Volts
- 208/230
- Refrig.
- R-32
- SEER2
- 19.5
- HSPF2
- 9
- Heats to
- 5°F
The maker's photo for this series, not this exact size; the outdoor unit grows with capacity
Daikin · Ceiling Cassette
Daikin FFA15AVJU9 Four-Way Cassette 15,000 BTU
FFA15AVJU9 / RXV15AVJU9
~$3,098approximate retailer price at last check, equipment only
- BTU/h
- 15k
- Volts
- 208/230
- Zones
- 1
- SEER2
- 19.6
- HSPF2
- 8.8
- Heats to
- 5°F
- Refrig.
- R-32
- Covers
- —
- Wi-Fi
- Add-on
Best forBigger rooms that fall between 12k and 18k and do not face deep cold.
Overview
The 15k step in Daikin's four-way cassette range fills the gap between the 12k and 18k cassettes, which Fujitsu and Gree do not offer in this format. It rates 19.6 SEER2, 11.5 EER2 and 8.8 HSPF2, with 16,200 BTU of cooling and 16,300 BTU of heating. At $3,098 it is listed below the Daikin 12k set, which makes it the better value of the two if you can use the extra capacity. Like the other Daikin cassettes it stops heating at 5°F, so it fits cooling-heavy or moderate climates.
- 15k middle size
- Panel included
Cold-weather output
At 5°F it still makes 70% of its rated heat, according to the certified NEEP listing for this pairing. Daikin rates it to keep running down to 5°F.
- COP at 5°F
- 1.8
- Refrigerant
- R-32
- AHRI cert.
- 218468385
- ENERGY STAR cold climate
- No
Pairing: RXV15AVJU with FFA15AVJU. Checked October 8, 2026 on NEEP's ccASHP list; a different head or condenser posts different numbers.
Strengths and catches
Strengths
- +A 15k cassette size that Fujitsu and Gree do not offer
- +Listed for less than Daikin's 12k cassette set
- +Configurable 2-, 3- or 4-way discharge
Catches
- −Heats only to 5°F
- −8.8 HSPF2 is modest
- −Heating output barely exceeds cooling at 16,300 BTU
- −Wi-Fi is not built in; app control needs an add-on adapter
Questions buyers ask
Why pick the 15k Daikin cassette?+
At $3,098 it costs less than the 12k at $3,427 and heats more, with 16,200 BTU at 47°F and 11,400 BTU at 5°F. It is a good middle size.
Does the 15k need a bigger lineset than the 12k?+
Yes. It uses 1/4 x 1/2 inch lines (up to 99 ft) where the 12k uses 1/4 x 3/8 inch, so price the copper accordingly. The BYFQ60C3W2W panel is part of the system.
Is the 15k cassette a cold-climate unit?+
NEEP shows COP 1.8 at 5°F and capacity about 70% of the 47°F rating. The maker's floor is 5°F, with HSPF2 8.8.
What warranty does Daikin give on the 15k cassette?+
Daikin gives a 12-year limited parts warranty when the system is registered online within 60 days of installation. It covers parts, not labor, so ask the installer what their own labor guarantee covers.
Similar systems
Everything from DaikinSeries photo
Series photoDaikin · Ceiling Cassette
~$3,498
Daikin FFA18AVJU9 Four-Way Cassette 18,000 BTU
Large open rooms on a tighter equipment budget, in climates that stay above 5°F.
- BTU/h
- 18k
- Volts
- 208/230
- Refrig.
- R-32
- SEER2
- 18.2
- HSPF2
- 8.5
- Heats to
- 5°F
Daikin · Floor Mount
~$3,012
Daikin FVXV12AVJUW9 Floor Mount 12,000 BTU
Moderate-climate rooms that need a floor console and want Daikin hardware.
- BTU/h
- 12k
- Volts
- 208/230
- Refrig.
- R-32
- SEER2
- 19.5
- HSPF2
- 9.5
- Heats to
- 5°F