ARCOAIRE FJMA4X Electric Furnace | 1.5 Tons - 18000 BTU - R410A

A narrow air handler for small homes with ductwork

The FJMA4X18L0AB at a glance

The FJMA4X18L0AB is the 1.5-ton (18,000 BTU/h) size of Arcoaire’s FJMA4X air handler series. Installed indoors, it pushes warm or cool air through the ductwork, working with an outdoor unit: a central heat pump or a central air conditioner. Arcoaire publishes a nominal airflow of 525 CFM for this size.

What sets it apart most is its footprint. The cabinet is 14-5/16 in wide, 42-11/16 in high and 22-1/16 in deep. Those dimensions suit mechanical closets and basement corners where every inch counts.

Who it suits

The 1.5-ton size is aimed at small spaces: condos, co-ownership apartments, small townhouses, additions served by their own ducts. In Montreal, many forced-air condos hide their air handler in a hallway closet. When that unit reaches the end of its life, the replacement has to fit the same recess, and that is the kind of job where the FJMA4X18L0AB does well.

Correct sizing also matters for comfort. An air handler too large for a small home blows hard, stops quickly and leaves the air humid in summer. We assess the home’s real needs before confirming this size, and we check that the existing ductwork can handle the planned airflow.

What to plan for

The air handler runs on 208/230 V single phase, 60 Hz. Arcoaire publishes a 3.6 A minimum circuit ampacity and 15 A maximum overcurrent protection: a modest load that fits in most panels. The liquid connection is 3/8 in (9.5 mm), inside diameter.

Two points to keep in mind. First, this air handler is sold alone: it does not qualify for the LogisVert grant, which follows the certified outdoor unit + air handler pair. Second, no heater kit is described for this model in the data we verified; if you want electric backup heat, we confirm the compatible kit before ordering.

Installation by AirGreen

AirGreen is a family business established in Montreal for more than fifteen years, holding RBQ licence 5645-9605-01 in ventilation, refrigeration and electrical work. For this air handler, our work includes:

• the free on-site estimate, with closet measurements and a duct check;
• choosing the matched outdoor unit from the manufacturer’s tables;
• removing the old air handler, installing the new one and adapting the plenum;
• connecting the refrigerant piping, pulling a vacuum, the condensate drain and the electrical connection;
• commissioning and a walkthrough of how to use the system.

We work in Montreal, Laval, Longueuil, on the South Shore and on the North Shore. In a condo, we take the syndicate’s rules on outdoor unit placement into account.

Let’s talk about your mechanical closet

Send us the measurements of the current space or book a free estimate: we confirm the size and the match, then you receive a written quote. Financing is available.