First Co 64X3108V4 - 31UCX8R410ATXV 2 1/2 Ton Upflow or Closet Recessed Air Handler, ECM Motor, 8 kW Heat

Item: 31UCX8R410ATXV
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UCX Series
Wall / Closet Air Handlers
1.0 - 3.0 Tons Cooling or Heat Pump
Up to 10 kW Electric Heat

These upflow air handlers are designed for use with today's higher efficiency split-system condensing units and heat pumps. All UCX fan coils include a standard ECM motor. These motors offer the efficiency of a variable speed type ECM motor, but at a considerably lower cost.

First Co's customer is ultimately responsible for confirming which fan coil models are compatible with selected outdoor unit(s) and which expansion valves (if any) are required. To determine certified indoor/outdoor matches, go to: or contact the factory.

The UCX can be installed on a closet platform, hung on a closet wall, or recessed in a wall between the studs. The cabinet is made of galvanized steel and is fully insulated. The condensate pan is sloped to ensure proper drainage. For installation flexibility, drain piping can exit the bottom, front, left, or right side of the cabinet.

New Feature: - The removable door of the optional wall panel now includes "captive screws" that won't fall out when the door is removed for service or filter change.

Standard Features:
  • High efficiency standard ECM motor
  • Factory installed disconnect
  • 240V motor, 24V controls
  • Factory or field installed R410A TXV (non-bleed type) (cooling or heat pump operation).
  • Separate compartment for drain connections
  • Easily accessible 1" throwaway filter
Optional Features:
  • Optional accessories include field installed Heater Kits (only for 0kW models), factory or field installed TXV Kits (nonbleed type), Wall Panels with Captive Screws, Condensate Overflow Switch, Closet Hanger Bracket Kit, and Bottom Return Air Kit

California residents: see Proposition 65 Warning


picture_as_pdf installation instructions

picture_as_pdf specification sheet

picture_as_pdf use & care instructions

picture_as_pdf warranty document

Features and Specification

ERP ID 277452
Weight 95.000000
Liquid Line Fitting Sweat or Braze
Liquid Line Size (OD) 3/8"
Length 15.125000
Height 40.000000
Tonnage 2.5
Suction Line Size (OD) 3/4"
Refrigerant R-410a
Suction Line Fitting Sweat or Braze
UL Listed Yes
Voltage 208-240 VAC
Package Weight 95.000000
Width 22.125000
Warranty Offered Yes
Product Family UCX (ECM)
Brand First Company
CFM 1000
Circuit Breaker - Min Amps 42, 47
Filter Size 18" x 20"
Blower Motor HP 1/2 HP
Air Flow Upflow
Circuit Breaker - Max Amps 45
Drain Connection Size 3/4"
Equipment Type Heat Pump
Energy Star Rated No
Drain Connections 2
Cooling Capacity 24000, 30000
Cubic Measurement 7.746300