By Commercial Service Company · November 3, 2026
Most businesses heat and cool their space the same way they did five years ago: thermostats set once and left alone, or worse, adjusted by whoever walks by and feels hot or cold. In a restaurant, grocery store, or office, that habit runs equipment during hours nobody needs it running. A proper schedule, set up once and locked down, is one of the simplest ways to cut wasted runtime without spending a dime on new equipment.
Occupied vs. Unoccupied Schedules
Every commercial thermostat or building control system should run on at least two modes:
- Occupied - the comfort setting for hours when staff and customers are actually in the building.
- Unoccupied - a wider setback used overnight, between shifts, or on closed days, when nobody needs tight temperature control.
The schedule should match your actual hours, not your posted hours. If staff arrives an hour before opening to prep, the system needs to start recovering before then, not at the moment the doors unlock. Walk-in coolers and refrigeration systems run on their own separate controls and should never be tied into a space-heating or cooling schedule - those need to stay at a licensed technician's set points around the clock for food safety.
Setbacks That Actually Save Money
A setback is the gap between your occupied and unoccupied temperature. The bigger the gap, the more you save - but too big a gap means the system fights to catch back up and can run harder (and longer) than if it had never drifted that far. For most central Arkansas commercial spaces, a moderate setback of several degrees in each direction overnight or during closed hours gets you real savings without overworking the equipment on recovery.
- Set unoccupied heating lower and unoccupied cooling higher than your comfort range.
- Give the system enough lead time to recover before occupied hours start - this depends on your equipment's size and age, so a technician can help dial in the right recovery window.
- Avoid setbacks so aggressive that humidity or moisture becomes a problem in kitchens or storage areas.
Locking Thermostats Down
Schedules only save money if people leave them alone. The single biggest energy waster in multi-tenant and multi-zone buildings is manual override - someone bumps the temperature five degrees because they're cold, forgets to change it back, and the system runs against the schedule for the rest of the day or night.
- Lock thermostats to a limited adjustment range (a few degrees either way) instead of leaving them wide open.
- Restrict schedule changes to a manager or facility contact, not every employee with access to the wall.
- Use a visible but tamper-resistant cover on units in public or shared areas.
- Review override logs periodically if your system tracks them - frequent overrides usually mean the base schedule or setpoint is wrong, not that people are being difficult.
When Settings Fight Each Other
In buildings with multiple units, multiple zones, or multiple tenants, it's common to find thermostats working against one another without anyone realizing it. A few patterns we see often in central Arkansas commercial buildings:
- One zone's heating setpoint is set above a neighboring zone's cooling setpoint, so both systems run constantly trying to correct air that's bleeding between spaces.
- A rooftop unit serving several tenants has its schedule overridden by one tenant's wall thermostat, keeping the whole unit in occupied mode around the clock.
- Humidity or ventilation controls aren't coordinated with the temperature schedule, so dehumidification runs against a cooling setback that doesn't account for it.
- Equipment installed at different times uses mismatched schedules that were never reconciled after a change in hours or tenants.
These conflicts don't always show up as an obvious problem - sometimes it's just a slow creep in utility bills or a system that seems to run more than it should. Sorting them out usually means walking every zone's schedule and setpoints side by side, which is a job for a licensed technician familiar with your specific equipment and controls.
If your building's thermostats haven't been reviewed in a while, or you suspect zones are working against each other, Commercial Service Company has served businesses across Little Rock, Conway, Benton, Bryant, Maumelle, Jacksonville, Searcy, Russellville, and the rest of central Arkansas since 1976. Give us a call at 501-548-2374 and we'll take a look at your schedules and setpoints.