Lennox LGM Series - Factory Installed Belt Drive Kits; Accessory Air Resistance Data

Page 11
BLOWER DATA
FACTORY INSTALLED BELT DRIVE KIT SPECIFICATIONS
󰀩 Nominal
hp
Maximum
hp
Drive Kit Number RPM Range
Standard 2 2.30 1 535 - 725
Standard 2 2.30 2 
Standard 3 3.45 1 535 - 725
Standard 3 3.45 2 
Standard 5 5.75 3 
Standard 5 5.75 4 850 - 1045
Standard 5 5.75 5 
Standard 7.5   850 - 1045
Standard 7.5  7 
Standard 7.5  8 1045 - 1285
Standard 10 11.50 7 
Standard 10 11.50 10 1045 - 1285
Standard 10 11.50 11 
NOTE - Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor output required. Maximum usable
output of motors furnished are shown. In Canada, nominal motor output is also maximum usable motor output. If motors of comparable output are used, be sure to keep
within the service factor limitations outlined on the motor nameplate.
NOTE – Blower motor service factor = 1.0.
FACTORY INSTALLED OPTIONS/FIELD INSTALLED ACCESSORY AIR RESISTANCE
Air
Volume
cfm
Wet Indoor Coil
Humiditrol™+
Reheat Coil
Gas Heat Exchanger
Economizer Filters
Horizontal
Roof Curb
156,
180
210,
240,
300
Low/
Standard
Heat
Medium
Heat
High
Heat
156
thru
240
300
in. w.g. in. w.g. in. w.g. in. w.g. in. w.g. in. w.g. in. w.g. MERV 8 MERV 13 MERV 16 in. w.g. in. w.g.
2750 .01 .02 .01 .02 .04 .05 - - - .01 .03  .03 -
3000 .01 .02 .01 .03 .04 .05 - - - .01 .03  .04 -
3250 .01 .03 .01 .03 .05  - - - .01 .04 0.07 .04 .01
3500 .01 .03 .02 .03 .05  - - - .01 .04 0.08 .05 .01
3750 .01 .03 .02 .04  .07 - - - .01 .04 0.08 .05 .01
4000 .02 .04 .02 .04  .07 - - - .01 .04   .02
4250 .02 .04 .02 .04  .08 - - - .01 .05 0.10 .07 .02
4500 .02 .05 .02 .05 .07  - - - .01 .05 0.10 .07 .02
4750 .02 .05 .02 .05 .08 .10 - - - .02 .05 0.11 .08 .03
5000 .02 .05 .02 .05  .11 - - - .02  0.12 .08 .03
5250 .02  .03  .10 .12 - - - .02  0.12  .04
5500 .02 .07 .03  .10 .13 - - - .02  0.13 .10 .04
5750 .03 .07 .03  .11 .14 - - - .02 .07 0.14 .11 .05
 .03 .08 .03 .07 .12 .15 - - - .03 .07 0.14 .11 
 .03 .08 .03 .07 .12  .01 .03 .07 0.15 .12 .07
 .03  .04 .08 .13 .17 .02 .03 .08  .13 .08
 .04 .10 .04 .08 .14 .18 .03 .03 .08 0.17 .14 .08
7000 .04 .10 .04  .15  .04 .04 .08 0.17 .15 
7250 .04 .11 .04   .20 .05 .04  0.18  .10
7500 .05 .12 .05 .10 .17 .21  .04   .17 .11
8000 .05 .13 .05 .11  .24  .05 .10 0.21  .13
8500  .15 .05 .12 .20  .11 .05 .10 0.22 .21 .15
 .07   .13 .23  .14  .11 0.24 .24 .17
 .08 .18 .07 .14 .25 .32  .07 .12 0.25  
10,000 .08 .20 .07  .27 .35  .07 .12 0.27  .21
10,500  .22 .08 .17 .30 .38 .22 .08 .13  .31 .24
11,000 .11 .24 .08 .18 .31 .40 .25 
.14 0.30 .34 .27