Electrical - Lennox CB29M Installation Manual

External Static Pressure
in. w.g.
.00
.05
.10
.15
.20
.25
.30
.40
.50
.60
.70
.80
.85
NOTE − All air data is measured external to unit with air filter in place. Electric heaters have no appreciable air resistance.

Electrical

WARNING
USE COPPER CONDUCTORS ONLY.
Run 24V Class II wiring only through specified low
voltage opening. Run line voltage wiring only
through specified high voltage opening. Do not
combine voltage in one opening.
Wiring must conform to the current National Electric Code
ANSI/NFPA No. 70, or Canadian Electric Code Part I, CSA
Standard C22.1, and local building codes. Refer to follow-
504719M 09/05
CB30M-65 Blower Performance (460V − 1 ph)
Pa cfm
0 1965
10 1950
25 1930
35 1910
50 1880
60 1850
75 1815
100 1735
125 1635
150 1520
175 1390
200 1245
210 1165
Table 20
Air Volume and Motor Watts at Specific Blower Taps
Low
L/s Watts
930 710
920 700
910 685
900 675
890 660
875 645
855 630
820 600
770 570
720 540
655 505
590 475
550 460
ing wiring diagrams. See unit nameplate for minimum cir-
cuit ampacity and maximum overcurrent protection size.
Select the proper supply circuit conductors in accor-
dance with Tables 310−16 and 310−17 in the National
Electric Code, ANSI/NFPA No. 70 or Tables 1 through 4
in the Canadian Electric Code, Part I, CSA Standard
C22.1.
This unit is provided with knockouts for conduit. Reducer
washers are provided, in bag assembly to allow use of
smaller conduit. Use provided caps to seal holes not
used. Refer to figure 11 for unit schematic wiring dia-
gram. Refer to figures 13 and 14 for typical field wiring.
Separate openings have been provided for 24V low volt-
age and line voltage. Refer to the dimension illustration for
specific location.
Page 16
High
cfm L/s
2140 1010
2110 995
2080 980
2045 965
2005 945
1965 925
1920 905
1820 860
1710 805
1585 750
1450 685
1305 615
1225 580
Watts
795
780
765
755
740
725
710
680
650
615
585
550
535