Lennox LDT Series Information page 9

BLOWER D ATA BLOWER DATA
FACTORY INSTALLED BELT DRIVE KIT SPECIFICATIONS
Nominal
hp
3
3
5
5
5
7.5
7.5
7.5
10
10
10
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 – Motor service factor limit - 1.0
FACTORY INSTALLED OPTIONS/FIELD INSTALLED ACCESSORY AIR RESISTANCE
Wet Indoor
Air
Coil
Volume Standard
cfm
in. w.g.
2750 .02
3000 .02
3250 .03
3500 .03
3750 .03
4000 .04
4250 .04
4500 .05
4750 .05
5000 .05
5250 .06
5500 .07
5750 .07
6000 .08
6250 .08
6500 .09
6750 .10
7000 .10
7250 .11
7500 .12
8000 .13
8500 .15
9000 .16
9500 .18
10,000 .20
10,500 .22
11,000 .24
Maximum
hp
3.45
3.45
5.75
5.75
5.75
8.63
8.63
8.63
11.50
11.50
11.50
Gas Heat Exchanger
Low/
Medium High
Heat Heat
Heat
in. w.g. in. w.g. in. w.g.
.02 .04 .05
.03 .04 .05
.03 .05 .06
.03 .05 .06
.04 .06 .07
.04 .06 .07
.04 .06 .08
.05 .07 .09
.05 .08 .10
.05 .09 .11
.06 .10 .12
.06 .10 .13
.06 .11 .14
.07 .12 .15
.07 .12 .16
.08 .13 .17
.08 .14 .18
.09 .15 .19
.09 .16 .20
.10 .17 .21
.11 .19 .24
.12 .20 .26
.13 .23 .29
.14 .25 .32
.16 .27 .35
.17 .30 .38
.18 .31 .40
Drive Kit Number
1
2
3
4
5
6
7
8
7
10
11
Economizer
in. w.g. MERV 8
- - - .01
- - - .01
- - - .01
- - - .01
- - - .01
- - - .01
- - - .01
- - - .01
- - - .02
- - - .02
- - - .02
- - - .02
- - - .02
- - - .03
.01 .03
.02 .03
.03 .03
.04 .04
.05 .04
.06 .04
.09 .05
.11 .05
.14 .06
.16 .07
.19 .07
.22 .08
.25 .09
Page 9
RPM Range
535 - 725
710 - 965
685 - 856
850 - 1045
945 - 1185
850 - 1045
945 - 1185
1045 - 1285
945 - 1185
1045 - 1285
1135 - 1365
Filters
MERV 13 MERV 16
.03 .06
.03 .06
.04 .07
.04 .08
.04 .08
.04 .09
.05 .10
.05 .10
.05 .11
.06 .12
.06 .12
.06 .13
.07 .14
.07 .14
.07 .15
.08 .16
.08 .17
.08 .17
.09 .18
.09 .19
.10 .21
.10 .22
.11 .24
.12 .25
.12 .27
.13 .29
.14 .30
Horizontal
Roof Curb
in. w.g.
.03
.04
.04
.05
.05
.06
.07
.07
.08
.08
.09
.10
.11
.11
.12
.13
.14
.15
.16
.17
.19
.21
.24
.26
.29
.31
.34