Instruction Manual
18 
RN Series Feature String Nomenclature 
Feature 5: SUPPLY AIR OPTIONS 
5A: SUPPLY AIR BLOWER CONFIGURATION 
0 = 1 Blower + Standard Eff. Motor 
A = 2 Blowers + Standard Eff. Motors 
B = 1 Blower + Premium Eff. Motor 
C = 2 Blowers + Premium Eff. Motors 
D = 1 Blower + Premium Eff. + 1 VFD 
F = 2 Blowers + Premium Eff. + 1 VFD 
G = 2 Blowers + Premium Eff. + 2 VFDs 
5B: SUPPLY AIR BLOWER 
B = 15” Backward Curved Plenum 
C = 18.5” Backward Curved Plenum 
D = 24” Backward Curved Plenum 
E = 27” Backward Curved Plenum 
F = 30” BC Plenum - 90% Width + 1750 rpm Max - 
Aluminum Wheel 
G = 15” BC Plenum - 70% Width 
H = 18.5” BC Plenum - 70% Width 
J = 18.5” Backward Curved Plenum 
K = 18.5” BC Plenum - 60% Width 
L = 30” BC Plenum - 1600 rpm Max - Aluminum 
Wheel 
M = 13.5” Backward Curved Plenum 
N = 13.5” BC Plenum - 70% Width 
P = 24” BC Plenum - 60% Width 
Q = 27” BC Plenum - 60% Width 
R = 22” Backward Curved Plenum 
S = 22” BC Plenum - 70% Width 
T = 17” Backward Curved Plenum 
U = 17” BC Plenum - 70% Width 
V = 33” Backward Curved Plenum 
W = 36.5” Backward Curved Plenum 
Y = 42.5” Backward Curved Plenum 
5C: SUPPLY AIR BLOWER MOTOR 
C = 1 hp - 1760 rpm 
D = 2 hp - 1760 rpm 
E = 3 hp - 1760 rpm 
F = 5 hp - 1760 rpm 
G = 7.5 hp - 1760 rpm 
H = 10 hp - 1760 rpm 
L = 15 hp - 1760 rpm 
M = 20 hp - 1760 rpm 
N = 1 hp - 1170 rpm 
P = 2 hp - 1170 rpm 
Q = 3 hp - 1170 rpm 
R = 5 hp - 1170 rpm 
S = 7.5 hp - 1170 rpm 
T = 10 hp - 1170 rpm 
U = 15 hp - 1170 rpm 
V = 20 hp - 1170 rpm 
W = 25 hp - 1170 rpm 
Y = 30 hp - 1170 rpm 
3 = 25 hp - 1760 rpm 
4 = 30 hp - 1760 rpm 
5 = 40 hp - 1760 rpm 
6 = 50 hp - 1760 rpm 
Feature 6: FILTERS 
6A: PRE FILTER  
0 = Standard - None 
A = 2” Pleated - 30% Eff. - MERV 8 
B = Metal Mesh Outside Air Filter 
C = Lint Screen Filter 
D = Exhaust Air ERW Filter 
F = Options A + D 
G = Options B + D 
H = Options A + B + D 
6B: UNIT FILTER  
0 = 2” Throwaway  
or 2” Pleated - 30% Eff. - MERV 8 
A = 2” Pleated - 30% Eff. - MERV 8 
B = 4” Pleated - 30% Eff. - MERV 8 
C = 2” Permanent Filter + Replaceable Media 
F = 4” Pleated - 65% Eff. - MERV 11 
G = 4” Pleated - 85% Eff. - MERV 13 
H = 4” Pleated - 95% Eff. - MERV 14 










