FJ5ANXC42L00
F = Fan Coil
J = Comfort 
5 = Puron Advance (R-454B) Multipoise
A = Major Series
N = 208/230-1-60
X = Singlular, TXV
C = 21" Cabinet
42 = 42,000 Btu
L = Aluminum Coil
00 = No Heating

New FCU takes the new KFFEH Electric Heaters

Standard Features

• Puron Advance®, chlorine-free, non-ozone depleting refrigerant
• Refrigerant leak detection dissipation system for added safety
• Thermostatic Expansion Valve (TXV) designed to maximize performance with Puron Advance® refrigerant
• Multi-tap ECM (electronic commutating motor)
• Five available speed tags to meet a wide range of applications
• Integrated motor controls, with 90-sec off TDR function, have replaced integrated circuit board
• InteliSense™ Board to maximize comfort, efficiency, and safe heater airflow operation
• Overflow feature for slope coil units allows condensate to exit the unit without damage to product under clogged primary and secondary line conditions