Operating
Manual 570-207
Use the System
switch to place the system in
one of the following modes.
• Cool: System is in Cooling mode.
• Off: System is off.
• Heat: System is in Heating mode.
• Em
Heat:
System
is in Emergency
Heat
mode.
Only
auxiliary
heating
can
be
activated. The compressor
is disabled.
(This
mode is available
on the P310-0210
model
only.)
CAUTION:
EQUIPMENT
DAMAGE HAZARD
Do not use Cooling mode when the outdoor temperature is below 50 °F (10 °C).