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Nortek 904308GD -GB5BM-X42K-B - 3 1/2 Ton 13 SEER Multipoise Air Handler, R410A

Item: GB5BMX42KB
MFR: 904308GD
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The GB5BM Series of air handlers, when combined with our heat pump or air conditioner, offer a full line of quality, split system heating and cooling equipment.

Features and Benefits:
  • Durable, Attractive Cabinet: Designed using galvanized steel. The door is also galvanized steel, with a polyester urethane finish. The 950 hour salt spray finish resists corrosion 50%betterthan comparable units. The plastic drain pan is corrosion-resistant.
  • Multi-poised: Can be used in horizontal, Upflow, Downflow and vertical applications.
  • Multi-speed: Gives flexibility of installation.
  • Ease-of-Service: Plug-in wire connections and built-in filter rack makes the air handler easy to service.
  • Plug-in Heater Kits: Available in 5kw - 30kw (Not for use in 115 Volt units)
  • Circuit Board: Incorporating blower time delay relay, low voltage terminal strip, and heat-strip sequencing.
  • Air Handler Control Board: Controls time-sequencing of heat stages with field-selectable sequence timing.
  • Breaker Accessibility: Breaker accessible from front of unit when heater is applied.
  • No Fasteners on Sides or Back: Smooth surfaces for ease of installation.
  • Designed to Meet the Requirements 610.2.A.2: Meets Florida building code requirements for air leakage.


NameNortek 904308GD -GB5BM-X42K-B - 3 1/2 Ton 13 SEER Multipoise Air Handler, R410A
Gemaire Item NumberGB5BMX42KB
Manufacturer Product Number904308GD
SKU - PIM Number1383140692688
ERP Number196492
Unit of MeasureEACH
Weight132.0 Pound (lb.)
Length32.5 Inches (in)
Width26.0 Inches (in)
Height50.5 Inches (in)
Hazardous MaterialNo
EPA Cert RequiredNo
Country of OriginUSA
Equipment TypeHeat Pump
Cooling Capacity42000
Air FlowMulti-Position
Voltage208-230 VAC
Minimum Circuit Amps50
Maximum Fuse Size60
Blower Motor HP1/3 HP
Filter Size18" x 20" x 1"
Rated Load Amps2.9
Drain Connection Size3/4"
Suction Line Size7/8"
Motor HP1/3 HP
Motor TypePSC
Liquid Line Fitting3/8"
Liquid Line Size3/8"
CertificationsAHRI, Nate
Warranty Offered5 Year Parts
Energy Star RatedNo
LEED CertifiedNo
UL ListedNo
UL RecognizedNo
Tonnage3 1/2
GEM - Case Quantity