Electrical - Lennox EL296DFV Installation Instructions Manual

Electrical

ELECTROSTATIC DISCHARGE (ESD)
Precautions and Procedures
CAUTION
Electrostatic discharge can affect elec­
tronic 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.
WARNING
Fire Hazard. Use of aluminum wire with this
product may result in a fire, causing property dam­
age, severe injury or death. Use copper wire only
with this product.
The unit is equipped with a field make-up box on the left
hand side of the cabinet. The make-up box may be moved
to the right side of the furnace to facilitate installation. If the
make-up box is moved to the right side, clip the wire ties
that bundle the wires together. The excess wire must be
pulled into the blower compartment. Secure the excess
wire to the existing harness to protect it from damage.
EXTERIOR MAKE-UP BOX
(FIELD PROVIDED RIGHT SIDE)
FIGURE 55
Refer to figure 58 for unit schematic and field wiring. See
figures 56 and 57 for icomfort Wi-Fi
communicating applications. Table 13 shows DIP switch
and on-board link settings for non-communicating thermo­
stat applications. Typical wiring schematic is shown in fig­
ure 58.
MAKE-UP
BOX
OUTSIDE
CABINET
Right Side
®
thermostat wiring in
Page 37
CAUTION
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.
The power supply wiring must meet Class I restric­
tions. Protected by either a fuse or circuit breaker, se­
lect circuit protection and wire size according to unit
nameplate.
NOTE - Unit nameplate states maximum current draw.
Maximum over-current protection allowed is shown in table
12.
TABLE 12
EL296DFV Model
045V36B, 070V48B
090V60C, 110V60C
Holes are on both sides of the furnace cabinet to facili­
tate wiring.
Install a separate (properly sized) disconnect switch
near the furnace so that power can be turned off for
servicing.
Before connecting the thermostat or the power wiring,
check to make sure the wires will be long enough for
servicing at a later date. Remove the blower access
panel to check the length of the wire.
Complete the wiring connections to the equipment.
Use the provided unit wiring diagram and the field wir­
ing diagrams shown in table 13 and figure 58. Use
18-gauge wire or larger that is suitable for Class II ra­
ting for thermostat connections.
Electrically ground the unit according to local codes or,
in the absence of local codes, according to the current
National Electric Code (ANSI/NFPA No. 70). A green
ground wire is provided in the field make-up box.
NOTE - The EL296DFV furnace contains electronic
components that are polarity sensitive. Make sure
that the furnace is wired correctly and is properly
grounded.
One line voltage "ACC" 1/4" spade terminal is provided
on the furnace integrated control. Any electronic air
cleaner or other accessory rated up to one amp can be
connected to this terminal with the neutral leg of the cir­
cuit being connected to the one of the provided neutral
terminals. See figure 59 for control configuration. This
terminal is energized when the indoor blower is operat­
ing.
An unpowered, normally open (dry) set of contacts
with a 1/4" spade terminal "HUM" are provided for hu­
midifier connections and may be connected to 24V or
120V. Any humidifier rated up to one amp can be con­
Maximum Over-Current
Protection (Amps)
15
20