Electrical - Lennox ELITE Series Installation Instructions Manual

Nominal Internal
Iron Pipe Diameter
Size Inches inches
(mm) (mm)
1/2 .622
(12.7) (17.799)
3/4 .824
(19.05) (20.930)
1 1.049
(25.4) (26.645)
1-1/4 1.380
(31.75) (35.052)
1-1/2 1.610
(38.1) (40.894)
2 2.067
(50.8) (52.502) (113.83)
2-1/2 2.469
(63.5) (67.713) (181.22)
3 3.068
(76.2) (77.927) (319.98)
NOTE - Capacity given in cubic feet (m3 ) of gas per hour and based on 0.60 specific gravity gas.

Electrical

ELECTROSTATIC DISCHARGE (ESD)
Precautions and Procedures
CAUTION
Electrostatic discharge can affect electronic
components. Take precautions to neutralize
electrostatic charge by touching your hand
and tools to metal prior to handling the
control.
WARNING
Electric Shock Hazard. Can cause injury or
death. Unit must be properly grounded in
accordance with national and local codes.
INTERIOR MAKE-UP BOX INSTALLATION
MAKE-UP
BOX
FIGURE 58
Gas Pipe Capacity - ft3/hr (m3/hr)
10 20 30
(3.048) (6.096) (9,144)
172 118 95
(4.87) (3.34) (2.69)
360 247 199
(10.19) (7.000) (5.63)
678 466 374
(19.19) (13.19) (10.59)
1350 957 768
(38.22) (27.09) (22.25)
2090 1430 1150
(59.18) (40.49) (32.56)
4020 2760 2220
(78.15) (62.86)
6400 4400 3530
(124.59) (99.95)
11300 7780 6250
(220.30) (176.98)
Right Side
TABLE 9
Length of Pipe - feet (m)
40 50 60
(12,192) (15.240) (18.288)
81 72 65
(2.29) (2.03) (1.84)
170 151 137
(4.81) (4.23) (3.87)
320 284 257
(9.06) (8.04) (7.27)
657 583 528
(18.60) (16.50) (14.95)
985 873 791
(27.89) (24.72) (22.39)
1900 1680 1520
(53.80) (47.57) (43.04)
3020 2680 2480
(85.51) (75.88) (70.22)
5350 4740 4290
(151.49) (134.22) (121.47)
The unit is equipped with a field make-up box. The make-
up box may be moved to the right side of the furnace to fa-
cilitate installation. Secure the excess wire to the existing
harness to protect it from damage.
Refer to FIGURE 59 and TABLE 13 for field wiring, sche-
matic wiring diagram and troubleshooting.
The power supply wiring must meet Class I restrictions.
Protected by either a fuse or circuit breaker, select circuit
protection and wire size according to unit nameplate.
NOTE - Unit nameplate states maximum current draw.
Maximum Over-Current Protection allowed is 15 AMP.
Holes are on both sides of the furnace cabinet to facilitate
wiring.
Install a separate (properly sized) disconnect switch near
the furnace so that power can be turned off for servicing.
Before connecting the thermostat check to make sure
the wires will be long enough for servicing at a later date.
Make sure that thermostat wire is long enough to facilitate
future removal of blower for service.
Complete the wiring connections to the equipment. Use
the provided unit wiring diagram and the field wiring dia-
gram shown in FIGURE 59. Use 18-gauge wire or larger
that is suitable for Class II rating for thermostat connec-
tions.
Failure to use properly sized wiring and circuit breaker
may result in property damage. Size wiring and circuit
breaker(s) per Product Specifications bulletin (EHB) and
unit rating plate.
Page 37
70 80 90
(21.336) (24.384) (27.432)
60 56 52
(1.69) (1.58) (1.47)
126 117 110
(3.56) (3.31) (3.11)
237 220 207
(6.71) (6.23) (5.86)
486 452 424
(13.76) (12.79) (12.00)
728 677 635
(20.61) (19.17) (17.98)
1400 1300 1220
(39.64) (36.81) (34.55)
2230 2080 1950
(63.14) (58.89) (55.22)
3950 3670 3450
(111.85) (103.92) (97.69)
CAUTION
100
(30,480)
50
(1.42)
104
(2.94)
195
(5.52)
400
(11.33)
600
(17.00)
1160
(32.844)
1840
(52.10)
3260
(92.31)