Replacement Installation; Common Installation Practices - Lennox iComfort M30 Installation And Setup Manual

4. Run thermostat wiring from indoor unit to
location where thermostat will be installed.
5. Drill or make opening through wall for thermostat
wiring 3/4" x 3/4" (19mm x 19mm).
6. Pull about 3 inches (76mm) of thermostat
wire through the opening and removed outer
thermostat wire jacket. This will help in routing
the thermostat wiring to the proper thermostat
terminals.
NOTE: Thermostat wires and outdoor sensor wire
can be run in the same bundle of wires if
needed.
7. Seal the hole in the wall with a suitable material
to prevent drafts from entering the thermostat
case. Not doing so could affect the thermostat's
internal temperature sensor.
8. Trim 1/4 inch (6 mm) insulation from end of
each thermostat wire lead.
r i
ePlaCement nstallation
Use the following two steps to replace an existing
thermostat.
1. Remove existing thermostat.
2. Note the wire colors and what terminals they are
connected for future reference.
C i
ommon nstallation
1. Use the provided wall plate as a template on
where to drill the mounting holes.
NOTE: Installation of wall plate is optional. Use
a field-provided level to allow for proper
alignment.
(Use a level) Align Wall Plate
Use unit wall plate as template to mark desired
mounting nhole locations on wall.
6
1/4"
P
raCtiCes