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BLOWER DRIVE SPECIFICATIONS
Static RPM Range
Motor HP
072 090120 150180 240
Nominal Maximum
Low 563 - 798 1.5 1.5 O- - -- - -- - -- - -- - -
Standard 798 - 1033 1.5 1.5 S- - -- - -- - -- - -- - -
High 878 - 1097 22O- - -- - -- - -- - -- - -
Low 562 - 796 22- - -O- - -- - -- - -- - -
Standard 796 - 1030 22- - -S- - -- - -- - -- - -
High 865 - 1071 33- - -O- - -- - -- - -- - -
Low 560 - 793 22- - -- - -O- - -- - -- - -
Standard 793 - 1027 33- - -- - -S- - -- - -- - -
High 865 - 1071 33- - -- - -O- - -- - -- - -
Low 653 - 887 33- - -- - -- - -O- - -- - -
Standard 846 - 1081 55- - -- - -- - -S- - -- - -
High 896 - 1146 55- - -- - -- - -O- - -- - -
Low 598 - 820 33- - -- - -- - -- - -O- - -
Standard 820 - 1041 55- - -- - -- - -- - -S- - -
High 875 - 1111 55- - -- - -- - -- - -O- - -
Low 689 - 875 55- - -- - -- - -- - -- - -O
Standard 810 - 1036 7.5 7.5 - - -- - -- - -- - -- - -S
High 963 - 1232 7.5 7.5 - - -- - -- - -- - -- - -O
NOTE - Using total air volume and system static pressure requirements, determine from blower performance tables rpm and motor horsepower required.
Maximum usable horsepower of motors furnished by Lennox are shown. In Canada, nominal motor horsepower is also maximum usable motor horsepower. If motors of
comparable horsepower are used, be sure to keep within the service factor limitations outlined on the motor nameplate.
S - Factory installed standard
O - Factory Installed with extended lead time.
BLOWER MOTOR ELECTRICAL DATA
Model No. 072 090120 150180 240
1.5 HP
Blower
Motor
Maximum Overcurrent
Protection / Minimum
Circuit Ampacity
208/230/-60hz-3ph 15 / 8- - -- - -- - -- - -- - -
460V-60hz-3ph 15 / 4- - -- - -- - -- - -- - -
575V-60hz-3ph 15 / 3- - -- - -- - -- - -- - -
Blower Motor Full
Load Amps
208/230/-60hz-3ph 5.7 - - -- - -- - -- - -- - -
460V-60hz-3ph 3- - -- - -- - -- - -- - -
575V-60hz-3ph 2.4 - - -- - -- - -- - -- - -
2 HP
Blower
Motor
Maximum Overcurrent
Protection / Minimum
Circuit Ampacity
208/230/-60hz-3ph 15 / 10 15 / 10 15 / 10 - - -- - -- - -
460V-60hz-3ph 15 / 515 / 515 / 5- - -- - -- - -
575V-60hz-3ph 15 / 415 / 415 / 4- - -- - -- - -
Blower Motor Full
Load Amps
208/230/-60hz-3ph 7.5 7.57.5 - - -- - -- - -
460V-60hz-3ph 3.4 3.43.4 - - -- - -- - -
575V-60hz-3ph 2.7 2.72.7 - - -- - -- - -
3 HP
Blower
Motor
Maximum Overcurrent
Protection / Minimum
Circuit Ampacity
208/230/-60hz-3ph - - -20 / 14 20 / 14 20 / 14 20 / 14 - - -
460V-60hz-3ph - - -15 / 615 / 615 / 615 / 6- - -
575V-60hz-3ph - - -15 / 515 / 515 / 515 / 5- - -
Blower Motor Full
Load Amps
208/230/-60hz-3ph - - -10.610.610.610.6- - -
460V-60hz-3ph - - -4.8 4.84.8 4.8- - -
575V-60hz-3ph - - -3.9 3.93.9 3.9- - -
5 HP
Blower
Motor
Maximum Overcurrent
Protection / Minimum
Circuit Ampacity
208/230/-60hz-3ph - - -- - -- - -35 / 21 35 / 21 35 / 21
460V-60hz-3ph - - -- - -- - -15 / 10 15 / 10 15 / 10
575V-60hz-3ph - - -- - -- - -15 / 815 / 815 / 8
Blower Motor Full
Load Amps
208/230/-60hz-3ph - - -- - -- - -16.716.716.7
460V-60hz-3ph - - -- - -- - -7.6 7.67.6
575V-60hz-3ph - - -- - -- - -6.1 6.16.1
7.5 HP
Blower
Motor
Maximum Overcurrent
Protection / Minimum
Circuit Ampacity
208/230/-60hz-3ph - - -- - -- - -- - -- - -50 / 31
460V-60hz-3ph - - -- - -- - -- - -- - -20 / 14
575V-60hz-3ph - - -- -
-- - -- - -- - -20 / 12
Blower Motor Full
Load Amps
208/230/-60hz-3ph - - -- - -- - -- - -- - -24.2
460V-60hz-3ph - - -- - -- - -- - -- - -11
575V-60hz-3ph - - -- - -- - -- - -- - -9
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