Daikin Hi-Wall Style Series 18K BTU Hi-Wall Fan Coil Multi Zone R-32

Description

The FTXV18AVJU9 is an evaporator coil from Daikin stocked by Buy Comfort Direct — full listing: Daikin Hi-Wall Style Series 18K BTU Hi-Wall Fan Coil Multi Zone R-32. This page covers what it is, where it fits in a system, what to check before you order, and how it ships.

About the FTXV18AVJU9

• Refrigerant Type: R-32
• Unit Height: 11-5/8 in
• Unit Width: 39 in
• Unit Weight: 27 lb
• Unit Depth: 10-3/8 in
• Heat Exchanger Type: Air Cooled

Where the FTXV18AVJU9 fits

This is the indoor wall-mounted head on its own — 18,000 BTU of capacity, no outdoor unit in the box. It is the piece you order when you are adding or replacing one zone and the condenser is already in place, and it has to be paired with a Daikin MXM multi-zone outdoor unit with a free port and enough remaining capacity.

The cabinet is 11-5/8 in high by 39 in wide and 10-3/8 in deep, about 27 lb, so it fits above a window or high on an interior wall without dominating the room. It is an R-32 unit. If you are not certain this head is compatible with the outdoor unit you already own, call before you order — a mismatch is the single most common reason a ductless order comes back.

See the rest of the line in Daikin MXM multi-zone equipment, or start from the room instead with our HVAC sizing tool. For help matching an indoor unit to an outdoor unit, call (877) 843-4822 and we will check the model numbers against Daikin’s tables before you buy.

Specifications

System Type	Mini Split
Refrigerant	R-32
Zones	Multi-Zone

Where the FTXV18AVJU9 fits

An evaporator coil is the indoor half of a split air-conditioning or heat-pump system. Refrigerant expands inside it and absorbs heat from the air the blower pushes across the fins, which is what actually cools and dehumidifies the house. The FTXV18AVJU9 only performs as rated when it is paired with an outdoor unit of matching capacity and the same refrigerant, and when its cabinet physically fits the furnace or air handler it sits on. A mismatched coil is the most common reason a new system tests below its nameplate efficiency.

Coil construction matters too: aluminum-fin, aluminum-tube designs resist the formicary corrosion that used to eat copper coils in a decade, and a cased coil arrives with the drain pan, access panel and cabinet already built so it sets straight onto the furnace. Uncased coils are for retrofits into an existing plenum.

Background reading: the AHRI Directory of Certified Product Performance.

What to check before you order

• Tonnage: match the outdoor unit (a coil one size up is sometimes specified by AHRI, never one size down).
• Refrigerant: R-32 coils pair only with R-32 outdoor units; R-410A with R-410A.
• Cabinet width and orientation: upflow/downflow versus horizontal, and the cabinet letter (A/B/C/D) has to match the furnace or air handler width.
• Metering device: TXV or EEV as specified for the outdoor unit you are pairing it with.
• AHRI match: look the combination up before you order so the rating and any rebate paperwork line up.

Installation and service notes

Set the coil level on the furnace or air handler with the drain pan sloped to the primary drain, and seal the cabinet-to-coil joint so return air cannot bypass the fins. Braze with nitrogen flowing, pull a deep vacuum, and weigh in the refrigerant charge to the outdoor unit’s chart rather than guessing from pressures. A float switch in the secondary pan is cheap insurance against a clogged drain.

Why buy the FTXV18AVJU9 from Buy Comfort Direct

We are a stocking HVAC distributor based in Winder, Georgia — not a marketplace reseller. Orders over $99 ship free, and financing is available at checkout through Affirm. If you are not sure this is the right part, call (877) 843-4822 before you order and we will match it to your equipment. Browse the rest of our Daikin, and see what customers say on our reviews page.

Ordering and delivery

In-stock items ship from our Winder, Georgia warehouse. Orders over $99 ship free; large equipment travels by freight carrier and parts by ground, and you will get tracking by email when it leaves. Need it matched to a system, or need a quantity that is not on the shelf? Use the contact page or call (877) 843-4822 and we will confirm availability before you pay.

FTXV18AVJU9 FAQ

Can I install the coil without changing the outdoor unit?

Only if the outdoor unit uses the same refrigerant and the pairing is an AHRI-listed match. Call us with both model numbers and we will check.

Does the FTXV18AVJU9 ship free?

Yes on orders over $99 — most orders that include it qualify. Large equipment ships by freight carrier; parts ship by ground.

How do I know it matches my equipment?

Send us your equipment model number through our contact page or call (877) 843-4822. We check the pairing before it ships.