Speedaire 3JR81


Compressor, Air

3JR81 35860
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ItemElectric Air Compressor
Sub-CategoryClimate Control
Pump TypeCast iron
Max. Pressure (PSI)90
Free Air CFM @ 80 PSI4.2/8.4
Amps AC3.4-3.4/1.7
Tank (Gal.)30
Tank TypeHorizontal
(F)NPT Outlet (In.)3/4
On Pressure Switch Setting70
Off Pressure Switch Setting90
Motor TypeOpen Dripproof
Length (In.)41-1/2
Width (In.)21-1/4
Height (In.)38
Standards UL
Weight 393.000000


HVAC Air Compressor, Motor Running Power 1 HP, Free Air Flow @ Maximum Pressure 3.8 CFM, Free Air Flow @ 90 psi 3.7 CFM, Phase Three, Voltage Rating 208-230/460 Volts, Current Rating 3.4-3.4/1.7 Amps, Tank Capacity 30 Gallons, Tank Type Horizontal, Configuration Duplex, Height 36 Inches, Length 41 1/2 Inches, Width 21 1/4 Inches

Climate Control Air Compressors
  • Certified to deliver published cfm at stated rpm and pressure and to be below 2 ppm in oil carry-over. Use for new, replacement, or upgrade HVAC installations and instrument air applications. Simplex packages include mounted and wired magnetic starter (except 1-phase); duplex packages include mounted and wired alternator and 2 magnetic starters. ASME certified tank and safety valve. For duplex models, use twice the oil capacity (Compressor Oil 4ZF21 is recommended, sold separately on page 4001).
  • 3-phase duplex units require 115V for control panel power All controls are UL Listed Max. pressure: 90 psi Simplex: 70 psi On/90 psi Off Duplex: 70 psi On/90 psi Off (lead), 60 psi On/80 psi Off (lag) All compressors must be hardwired Horizontal tank with 3/4" (F)NPT outlet and brass ball valves

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