About Advanced Operation - TOTALINE 1 For All P374-1000FM Owner's Manual

About Advanced Features & Operation
MEMORY BACKUP - In the event of a power loss, the
thermostat will retain the stored program settings without
external power or batteries.
2 STAGE OPERATION - The 2nd Stage of heat or cool is
turned on when (1) the 1st Stage has been on for a
minimum of two minutes, and (2) the temperature spread
from the setpoint is equal to or greater than: the setpoint
plus the deadband, plus 2 degrees.
Heating
2 degrees
2nd Stage 1st Stage
turn on turn on
MINIMUM HEAT/COOL SETPOINT DIFFERENCE - The Heat
and Cool setpoints will not be allowed to come any closer
to each other than the value set in Advanced Setup step
# 8, on page 12. This minimum difference is enforced
during Auto changeover
Cooling
Dead Dead
Band Band
Heat Cool 1st Stage
Setpoint Setpoint turn on
and Program On operation.
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