Blower Data - Lennox LHT Series Service Manual

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 Volume
Coil
cfm
in. w.g.
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
Electric
Economizer
Heat
in. w.g. in. w.g.
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
.01 - - -
.01 .01
.01 .02
.01 .03
.01 .04
.01 .05
.01 .06
.02 .09
.02 .11
.04 .14
.05 .16
.06 .19
.09 .22
.11 .25
Page 8
Drive Kit Number
1
2
3
4
5
6
7
8
7
10
11
Filters
MERV 8 MERV 13
.01 .04
.01 .04
.01 .04
.01 .04
.01 .05
.01 .05
.02 .05
.02 .06
.02 .06
.02 .06
.02 .07
.03 .07
.03 .07
.03 .08
.03 .08
.04 .08
.04 .09
.04 .09
.05 .10
.05 .10
.06 .11
.07 .12
.07 .12
.08 .13
.09 .14
RPM Range
535 - 725
710 - 965
685 - 856
850 - 1045
945 - 1185
850 - 1045
945 - 1185
1045 - 1285
945 - 1185
1045 - 1285
1135 - 1365
Horizontal
Roof Curb
MERV 16 in. w.g.
0.07 .04
0.08 .05
0.08 .05
0.09 .06
0.10 .07
0.10 .07
0.11 .08
0.12 .08
0.12 .09
0.13 .10
0.14 .11
0.14 .11
0.15 .12
0.16 .13
0.17 .14
0.17 .15
0.18 .16
0.19 .17
0.21 .19
0.22 .21
0.24 .24
0.25 .26
0.27 .29
0.29 .31
0.30 .34