If the indoor temperature is less than the desired temperature, then the optimum start time is LB.

Where:

LB

=

Latest begin time defined in the SSTO command.

If the indoor temperature is greater than or equal to the desired temperature, then the optimum start time is:

OB - (d * CC) - (d * f * (CT/10)) + AB

Where:

OB

=

Occupancy begin time from SSTO command.

d

=

Indoor temperature minus the desired temperature.

CC

=

Cooling coefficient (ccoef1) from SSTOCO command.

f

=

Outdoor temperature minus the desired temperature.

CT

=

Cooling transfer coefficient (ccoef3) from SSTOCO command.

AB

=

Adjust begin time from SSTO command.