Mini Split 30,000 BTU Daikin Polara 19 SEER2 WiFi Cool Only System, RKV30AVJU9, FTXV30AVJU9
Above two tons, Daikin's cool-only single-zone lineup hands off from the Oterra series to the Polara series, and the RKV30AVJU9 is the first step on that platform. Matched to the FTXV30AVJU9 wall-mounted air handler — a 48-13/16" wide cabinet moving up to 925 CFM — this system is rated 31,400 BTU/h at 19.00 SEER2 on R-32 refrigerant, with no heat pump function and no auxiliary heat. The Polara's real distinction is its low-ambient reach: cooling operation extends down to -22°F with the optional air direction adjustment grille, which is why it shows up in server rooms, equipment closets, and process cooling as often as it does in living space. A wireless remote is included, and the system is Wi-Fi capable and works with the Daikin ONE+ smart thermostat.
Is a 30,000 BTU Cool-Only System the Right Size?
Two and a half tons from a single wall-mounted head is a lot of capacity concentrated in one place, so the RKV30AVJU9 belongs in genuinely large, genuinely open spaces. Rated cooling is 31,400 BTU/h with 19,980 BTU/h of sensible capacity, and the FTXV30AVJU9 indoor unit is nearly a foot wider than the largest Oterra head specifically to move that air. Efficiency steps down from the Oterra's 21.00 SEER2 to 19.00 SEER2, and EER2 lands at 10.00 — the tradeoff for the capacity increase.
Before committing to this size, look hard at what the load is made of. Sensible-heavy spaces such as server closets, print shops, and machine rooms are a natural fit for the Polara's wide operating envelope. In occupied space, high ceilings, large glass walls, exterior door traffic, and kitchen equipment all push toward this capacity, but a long or partitioned floor plan will still leave dead zones no matter how big the head is. Note also that this system carries a rated piping length of 25 feet, so long runs need to be accounted for in the charge calculation.
Ideal for: Server and telecom rooms, equipment and machine rooms, large open commercial floors, warehouse offices, gyms, event spaces, and high-ceiling great rooms in hot climates.
Need more capacity? Step up to the 36,000 BTU Daikin Polara 18 SEER2 Cool Only System RKV36AVJU9, FTXV36AVJU9, the largest single-zone cool-only system in the Daikin range.
Recommended applications are general guidelines only. Actual system requirements depend on insulation, window area, ambient conditions, occupancy, internal heat gain, and installation details. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Outdoor Condensing Unit | RKV30AVJU9 — 2.5 Ton Polara Cool Only Inverter Condenser |
|---|---|
| Indoor Air Handler | FTXV30AVJU9 Wall-Mounted Ductless Air Handler |
| Operating Mode | Cool Only — No Heat Pump, No Electric Heat |
| Rated Cooling Capacity | 31,400 BTU/h Rated (modulates 10,200 – 31,400 BTU/h) |
| Efficiency | 19.00 SEER2 / 10.00 EER2 — 3.140 kW Cooling Input |
| Refrigerant | R-32, 3.68 lb Factory Charge |
| Line Set Sizes | 1/4" Liquid × 5/8" Suction — 99 ft Max Total, 66 ft Max Vertical |
| Electrical | 208-230V, Single Phase, 60 Hz — 21.8 A MCA, 25 A MOCP |
| Cooling Operating Range | 50°F – 115°F Standard; -22°F – 115°F with Air Direction Adjustment Grille |
| AHRI Certificate | 218080555 |
This pairing is where planning matters more than on the smaller units. The FTXV30AVJU9 needs 48-13/16" of clear wall width, the RKV30AVJU9 weighs 128 lb, and the system takes a 1/4" and 5/8" insulated copper line set with 3.68 lb of R-32 factory charge. Line set and 14/4 stranded communication wire are sold separately. For a condenser this heavy, a large 21" adjustable outdoor wall bracket or a properly rated pad is the right foundation. Shop the rest of the single zone cool only mini split systems to compare capacities side by side.
Outdoor Condenser & Air Handler Features
RKV30AVJU9 Outdoor Condensing Unit
- Polara series cool-only inverter condenser — no heating mode
- Low-ambient cooling to -22°F with the air direction adjustment grille
- 10,200 to 31,400 BTU/h modulation on a single compressor
- 2,585 CFM condenser airflow at high fan speed
- R-32 factory charge of 3.68 lb, rated for 25 ft of piping
- 99 ft maximum total line length, 66 ft maximum vertical
- 29-1/2" x 34-1/4" x 12-5/8" cabinet, 128 lb
- 21.8 A MCA on a 25 A maximum overcurrent device
- Anti-corrosion treatment for coastal and industrial exposure
- 57 dBA outdoor sound pressure under full load
FTXV30AVJU9 Wall-Mounted Air Handler
- 48-13/16" wide cabinet built to distribute 2.5 tons from one head
- 925 / 794 / 600 / 533 CFM across four fan speeds
- 37 dBA on Super Low speed despite the large blower
- Dual flap system with wide-angle louvers and 3-D comfort airflow
- Titanium apatite photocatalytic air-purifying filter, washable
- Weekly timer with up to four settings per day plus 24-hour on/off timer
- Intelligent Eye sensing and Night Set mode for unoccupied hours
- Wireless remote controller included in the carton
- Two-way communication with the Daikin ONE+ smart thermostat
- Wipe-clean flat panel with self-diagnosis fault display
Specifications & Manuals
Product documentation includes the factory submittal with full performance and electrical data, separate condenser and air handler installation instructions, and warranty information to assist with equipment selection, installation, and service.
Frequently Asked Questions
Why does the 30,000 BTU model switch from Oterra to Polara?
The Oterra cool-only series tops out at two tons. Above that, Daikin builds single-zone cool-only capacity on the Polara platform, which uses the RKV outdoor and FTXV indoor designations and a physically larger air handler to move the additional air.
How low can the RKV30AVJU9 cool in cold weather?
Down to -22°F outdoor ambient with the optional air direction adjustment grille installed — a far wider range than the Oterra series' -4°F limit. That capability is why the Polara is frequently specified for server rooms and equipment spaces requiring year-round mechanical cooling.
How much wall space does the FTXV30AVJU9 require?
The cabinet measures 48-13/16" wide by 12-15/16" high by 10-15/16" deep and weighs 42 lb. Confirm you have that clear width plus manufacturer service clearances before finalizing the location — it is roughly 9" wider than the largest Oterra head.
Does this system work with the Daikin ONE+ thermostat?
Yes. The Polara supports two-way communication with the Daikin ONE+ smart thermostat, and smartphone app control is available. The wireless infrared remote is included with the unit regardless.
What is the difference between rated piping length and maximum piping length?
Rated piping length — 25 feet on this system — is the run at which published performance figures are measured. Maximum length is 99 feet total, but longer runs require additional refrigerant at 0.22 oz per foot and will see some capacity loss.
Is 19 SEER2 a downgrade from the 24,000 BTU Oterra?
On paper yes, from 21.00 to 19.00 SEER2. Practically, an undersized 21 SEER2 system running flat out costs more to operate and comforts less than a correctly sized 19 SEER2 system. Size to the load first, then optimize efficiency within that capacity.
Daikin RKV30AVJU9, FTXV30AVJU9 SubmittalDaikin RKF Condenser Installation ManualDaikin FTXV Air Handler Installation ManualDaikin Warranty Certificate
