For the best Gemaire experience, please update your web browser.

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

Item: 31UCX8R410ATXV
MFR: 64X3108V4

This product is no longer available for purchase.

Comparable Products


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


NameFirst Co 64X3108V4 - 31UCX8R410ATXV 2 1/2 Ton Upflow or Closet Recessed Air Handler, ECM Motor, 8 kW Heat
Gemaire Item Number31UCX8R410ATXV
Manufacturer Product Number64X3108V4
SKU - PIM Number1458657819612
ERP Number277452
Unit of MeasureEA
Weight95.0 Pounds (Lb)
Length15.1 Inches (In)
Width22.1 Inches (In)
Height40.0 Inches (In)
Country of OriginUSA
BrandFirst Company
Equipment TypeHeat Pump
Cooling Capacity24000
Cooling Capacity30000
Air FlowUpflow
Voltage208-240 VAC
Circuit Breaker - Max Amps50
Circuit Breaker - Max Amps45
Minimum Circuit Amps47
Minimum Circuit Amps42
Blower Motor HP1/2 HP
Filter Size18" x 20"
Drain Connection Size3/4"
Suction Line FittingSweat
Suction Line Size (OD)3/4"
Liquid Line FittingSweat
Liquid Line Size (OD)3/8"
Warranty OfferedYes
Energy Star RatedNo
UL ListedYes
Drain Connections2
Product FamilyUCX (ECM)
GEM - Case Quantity


Parts List

Parts list is loading, wait for a moment....