Liebert AC Units made prior to 1982

FD125A

FD = Downflow (UD=Upflow)

125 = BTU (10 ton) (Various sizes from 6 to 40 tons)

A = Aircooled (outdoor condenser) (G=Glycol, W=Water)

Liebert AC Units made prior to 1985

FH125AUA01

FH = Downflow (FE=Downflow w/econocoil, UH=Upflow, UE=Upflow w/econocoil)

125 = BTU (10 ton) (Various sizes from 6 to 40 tons)

A = Air cooled (outdoor condenser) (G=Glycol, W=Water, C=Chilled Water)

U = compressor Unloaders ( "-" means no unloaders)

A = 460 volt 3 Phase (B=575v, C=208v, D=230v) 

01 = Level of electronics (03=Level of electronics)

Liebert AC Units made prior to 1995

FH125AUA10

FH = Downflow (FE=Downflow w/econocoil, UH=Upflow, UE=Upflow w/econocoil)

125 = BTU (10 ton) (Various sizes from 6 to 40 tons)

A = Air cooled (outdoor condenser) (G=Glycol, W=Water, C=Chilled Water)

U = compressor Unloaders ( "-" means no unloaders)

A = 460 volt 3 Phase (B=575v, C=208v, D=230v) 

01 = Level of electronics (standard) (10=Level of electronics advanced) 

Liebert Units made from 1995 and after


DH125AUASEI

DH = Downflow (DE=Downflow w/econocoil, VH=Upflow, VE=Upflow w/econocoil, UH=Upflow chilled water)

125 = BTU (10 ton) (Various sizes from 6 to 40 tons)

A = Air cooled (outdoor condenser) (G=Glycol, W=Water, C=Chilled Water)

U = compressor Unloaders ( "-" means no unloaders, V=VSD, Variable speed drive, H=CXW, Hot Gas Bypass)

A = 460 volt 3 Phase (B=575v, C=208v, D=230v) 

S = Level of electronics (standard) (A=Level of electronics advanced, G=Level of electronics advanced w/graphics) 

E = Electric Reheat (0=No reheat, S=SCR reheat, H=hot water reheat, G=Hot gas reheat, T=Steam reheat)

I = Infrared Humidifier (0=No humidifier, G=Steam Grid humidifier, S=Steam Generating Humidifier)