4
Rated Indoor Airflow (cfm)
The table to t he right lists the rated indoor airflow used
for the AHRI efficiency rating for the units covered in this
docume nt.
Model Number Full Load Airflow (cfm)
50HC*A/B/F07 2400
50HC*D/E/G07 2400
50HC*D/E/G08 3000
50HC*D/E/G09 3000
50HC*D/E11 3000
50HC*D/E/G12 3000
50HCBD08A2A6A0A3B0
Cooling Tons
07 -  6 ton
08 -  7.5 ton
09 -  8.5 ton
11 -  10 ton (12.0 EER)
12 -  10 ton (11.7 EER)
1
Example:
Position: 2 3 4 5 6 7 8 9
10
11 12 13 14 15 16 17 18
Heat Options
-  -  None (Field Installed Accessory)
A  =  Low Electric Heat
B  =  Medium Electric Heat
C  =  High Electric Heat       
Sensor Options
A =  None
B  =  RA Smoke Detector
C  =  SA Smoke Detector
D  =  RA + SA Smoke Detector
E =  CO
2
F  =  RA Smoke Detector and CO
2
G =  SA Smoke Detector and CO
2
H  =  RA + SA Smoke Detector and CO
2
Indoor Fan Options
1  =  Standard Static Option - Belt Drive
2  =  Medium Static Option - Belt Drive
3  =  High Static Option - Belt Drive
Coil Options (RTPF) (Outdoor - Indoor - Hail Guard)
A  =  Al/Cu - Al/Cu
B  =  Precoat Al/Cu - Al/Cu
C  =  E-coat Al/Cu - Al/Cu
D  =  E-coat Al/Cu - E-coat Al/Cu
E  =  Cu/Cu - Al/Cu
F  =  Cu/Cu - Cu/Cu
M =  Al/Cu -Al/Cu — Louvered Hail Guard
N  =  Precoat Al/Cu - Al/Cu — Louvered Hail Guard
P  =  E-coat Al/Cu - Al/Cu — Louvered Hail Guard
Q =  E-coat Al/Cu - E-coat Al/Cu — Louvered Hail Guard
R  =  Cu/Cu - Al/Cu — Louvered Hail Guard
S  =  Cu/Cu - Cu/Cu — Louvered Hail Guard
Voltage
1 = 575/3/60
5 = 208-230/3/60
6 = 460/3/60
Design Revision
A  =  Factory Design Revision 
Base Unit Controls
0  =  Electro-mechanical Controls can be used with W7212
    EconoMi$er IV (Non-Fault Detection and Diagnostic)
1 = PremierLink
TM
 Controller
2  =  RTU Open Multi-Protocol Controller
6  =  Electro-mechanical with 2-Speed fan and W7220 Econo 
    controller Controls. Can be used with W7220 EconoMi$er X 
    (with Fault Detection and Diagnostic)
D =  ComfortLink Controls
    (Not available on 2-stage cooling 07 size models)
Intake / Exhaust Options
A =  None
B  =  Temperature Economizer w/ Barometric Relief
F  =  Enthalpy Economizer w/ Barometric Relief
K =  2-Position Damper
U  =  Low Leak Temperature Economizer
    w/ Barometric Relief
W = Low Leak Enthalpy Economizer w/ Barometric Relief
Service Options
0 = None
1  =  Unpowered Convenience Outlet
2  =  Powered Convenience Outlet
3 = Hinged Panels
4  =  Hinged Panels and
    Unpowered Convenience Outlet
5  =  Hinged Panels and
    Powered Convenience Outlet
C  =  Foil Faced Insulation
D  =  Foil Faced Insulation with 
    Unpowered Convenience Outlet 
E  =  Foil Faced Insulation with 
    Powered Convenience Outlet
F  =  Foil Faced Insulation and Hinged Panels
G =  Foil Faced Insulation and Hinged Panels
    with Unpowered Convenience Outlet
H  =  Foil Faced Insulation and Hinged Panels
    with Powered Convenience Outlet 
Factory Assigned
0 = Standard
1 = LTL
Electrical Options 
A = None
B = HACR Breaker
C =  Non-Fused Disconnect
D =  Thru-The-Base Connections
E  =  HACR and Thru-The-Base Connections
F  =  Non-Fused Disconnect and
  Thru-The-Base Connections
G =  2-Speed Indoor Fan (VFD) Controller
H  =  2-Speed Fan Controller (VFD) and HACR
J  =  2-Speed Fan Controller (VFD) and 
  Non-Fused Disconnect
K  =  2-Speed Fan Controller (VFD) and 
  Thru-The-Base Connections
L  =  2-Speed Fan Controller (VFD) with
    HACR and Thru-The-Base Connections
M =  2-Speed Fan Controller (VFD) with 
    Non-Fused Disconnect and 
  Thru-The-Base Connections
Refrig. Systems Options
A  =  Single stage cooling models
B  =  Single stage cooling models
  with Humidi-MiZer
®
D  =  Two stage cooling models
E  =  Two stage cooling models with Humidi-MiZer
F  =  Single stage cooling models with
    MotorMaster Low Ambient Controller
G =  Two stage cooling models with
    MotorMaster Low Ambient Controller
Model Series - WeatherMaster
®
HC - High Efficiency
Unit Heat Type
50 - Electric Heat
 Packaged Rooftop
C150051
Fig. 1 -- 50HC 07--12 Model Number Nomenclature (Example)