Daikin · Multi-Zone

Daikin 2MXM18AVJU9 18,000 BTU 2-Zone (2 x FTXV09AVJU9)

2MXM18AVJU9 + 2x FTXV09AVJU9

~$4,239approximate retailer price at last check, equipment only

BTU/h: 18k
Volts: 208/230
Zones: 2
SEER2: 21
HSPF2: 10
Heats to: 5°F
Refrig.: R-32
Covers: 800 ft²
Wi-Fi: Built in

Best forTwo rooms in a moderate climate with a Daikin dealer nearby and no need for extreme-cold output.

Overview

Daikin's current 2-zone is the MXM, an R-32 condenser rated for 17,200 BTU of cooling and 18,500 BTU of heating, paired here with two FTXV09AVJU9 Aurora heads. It certifies at 21.0 SEER2 and 10.0 HSPF2 with non-ducted heads, and NEEP lists 13,200 BTU/h at 5°F against 18,500 BTU/h at 47°F, about 71%. Heating operation is rated 5°F to 60°F, so the MXT low-ambient version is the one for colder winters. The FTXV Aurora heads have Wi-Fi built in. The package costs about $4,240, which is a few hundred dollars above the Fujitsu AOUH18KWAS2 pair and well below the Mitsubishi H2i route, and Daikin's 12-year registered term is the main thing the money buys.

13,200 BTU/h at 5°F (NEEP)
12-year registered warranty

Cold-weather output

At 5°F it still makes 71% 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.: 214837757
ENERGY STAR cold climate: Yes

Pairing: 2MXM18AVJU with non-ducted heads. Checked October 8, 2026 on NEEP's ccASHP list; a different head or condenser posts different numbers.

Strengths and catches

Strengths

+12-year limited parts warranty with registration
+21.0 SEER2 / 10.0 HSPF2 on non-ducted heads
+Up to 164 ft of total piping and 49 ft of rise
+Complete package priced from one retailer with a choice of 16, 25 or 50 ft line sets

Catches

−Heating range starts at 5°F; the MXT version is needed for -13°F operation
−Holds about 71% of 47°F capacity at 5°F
−Line sets are extra and add up to $447 to the $4,239 package

Questions buyers ask

How does the Daikin 2-zone perform in winter?+

NEEP lists 18,500 BTU at 47°F and 13,200 BTU at 5°F, about 73% of the 18,000 nameplate, with COP 1.8. The maker's floor is 5°F and it is ENERGY STAR cold climate listed.

What does the $4,239 package include?+

The condenser plus two 9k FTXV09AVJU9 heads, and no line sets. Line sets in 16, 25 and 50 ft add $181 to $447.

What warranty comes with the Daikin 2-zone?+

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.

Is the Daikin 2-zone a contractor-only install?+

It is a contractor install. The condenser is precharged for the stock line length and allows 164 ft total piping and 49 ft height difference with 1/4 x 3/8 in. lines.