Lennox EL296UHVX Series User Manual

Page 95
VIII- Field Wiring With Conventional and Communicating Enabled Thermostat
Ignition Control 103130-05
Communicating Enabled Furnace with
a Non-Communicating Outdoor Unit
COMMUNICATING
FURNACE
COMMUNICATING
THERMOSTAT
NON-COMMUNICATING
OUTDOOR AIR
CONDITIONING UNIT -
1 OR 2 STAGE
OPTIONAL
OUTDOOR
AIR SENSOR
OPTIONAL
DISCHARGE
AIR SENSOR
Communicating Enabled Furnace with a
Communicating Enabled Outdoor Unit
DOOR AIR CONDITIONING
OR HEAT PUMP UNIT
OPTIONAL
OUTDOOR
AIR SENSOR
OPTIONAL
DISCHARGE
AIR SENSOR
CLIP ON-BOARD LINK
W915 (Y1 TO Y2) FOR
TWO-STAGE OPERATION
Indoor Unit
Controller
Outdoor Unit
Single wire to
terminal C
Single wire to
terminal C
Unused wires
Unused wires
Communicating systems using the Communicating thermostat require four
thermostat wires between the thermostat and the furnace/air handler control
and four wires between the outdoor unit and the furnace/air handler control.
When a thermostat cable with more than four wires is used, the extra wires
must be properly connected to avoid electrical noise. The wires must not be
left disconnected.
Use wire nuts to bundle the four unused wires at each end of the cable. A
single wire should then be connected to the indoor unit end of the wire bundle
and attached to the “C” terminals as shown above.
COMMUNICATING
THERMOSTAT
COMMUNICATING
FURNACE
COMMUNICATING
THERMOSTAT

Lennox EL296UHVX Series Specifications

General

Brand	Lennox
Model	EL296UHVX Series
Category	Furnace
Language	English