ARCOAIRE END4X42L17A "N" Evaporator Coil | 3.5 Tons

A 3.5-ton coil that is straightforward to service

Accessible from the front

The evaporator coil remains one of the hardest parts of a central system to reach: it sits above the furnace, often in a corner of the basement. On Arcoaire’s END4X42L17A, the cabinet’s front panel comes off. The technician inspects and cleans the coil without undoing the connection to the furnace, which makes service simpler and faster.

The rest of the cabinet follows the same logic: pre-painted steel, foil-faced insulation to keep it from sweating, hemmed flanges. Inside, the main tubing and fins are aluminum, with copper stubs for the connections, and the TXV is bolted on at the factory, equalizer tube already brazed in.

At a glance

The END4X42L17A is a 3.5-ton (42,000 BTU/h) N evaporator coil, R-410A, in a 17-1/2 in cabinet that lines up flush with furnace and air handler cabinets of the same width. It installs in upflow or downflow. For a 21 in unit, the same capacity comes as the END4X42L21A.

It suits good-sized single-family homes and two-storey houses heated by a 17-1/2 in electric furnace, on the North Shore as in Laval, whether to add central air conditioning or to replace a cased coil of the same width.

Before installation: lines, clearance and airflow

Three checks come before ordering. The refrigerant lines first: the coil calls for a 7/8 in suction connection and a 3/8 in liquid connection, and lines of the wrong diameter or in poor condition are replaced before installation. Clearance next: room must be kept in front of the cabinet to remove the access panel. The blower last, which must deliver 1,225 to 1,600 CFM, the range given for this size. Since the ICP sheet does not state use with a heat pump, we also confirm the match with the outdoor unit.

Installation by AirGreen

The on-site estimate is free and you receive a written quote. Our technicians set the coil, connect the plenum, braze the lines, hook up one of the two condensate drains, run the leak test and the evacuation, then commission the system. A family business established in Montreal for more than fifteen years, AirGreen holds RBQ licence 5645-9605-01 in ventilation, refrigeration and electrical work.

Arcoaire grants a 5-year limited parts warranty, plus an additional 5 years with timely registration, for owner-occupied homes. This model is available while supplies last; sold alone, it is not eligible for the LogisVert grant.

Ask for your free estimate in Montreal, Laval, Longueuil, on the North Shore or on the South Shore, and learn about financing.