Setting The Local Schedule; Overriding The Occupancy Mode; Enabling Optimal Start - Johnson Controls TEC3000 Series Quick Start Manual

The four modes of setpoint operation are described in Table 5.
Table 5: Setpoint operation
Mode of setpoint
operation
Occ Setpoint Select =
Setpoint Offset and
Heat Cool Setpoint Mode =
Individual Setpoints
Occ Setpoint Select = Min
and Max Setpoints and
Heat Cool Setpoint Mode =
Individual Setpoints
Occ Setpoint Select =
Setpoint Offset and
Heat Cool Setpoint Mode =
Common Setpoint
Occ Setpoint Select = Min
and Max Setpoints and
Heat Cool Setpoint Mode =
Common Setpoint
Scheduling (for all models)
The occupancy schedule comes from either the weekly scheduler built into the TEC or as an input from the BAS.
The Schedule Source must be selected to tell the controller where to read the occupancy source from.

Setting the local schedule

A weekly occupancy schedule with up to four occupancy events for each day can be set locally on the TEC and
operate independently of a supervisor. See Scheduling (for all models) to ensure the schedule source is set to
Local.
IMPORTANT: Internally, the TEC3000 uses a BACnet schedule where daily schedules are independent of the
previous and next days. The default occupancy of the TEC3000 from the factory is set to Occupied. As a result,
a daily event at 12:00 AM must be scheduled if you do not want the controller to transition to Occupied Mode at
midnight.

Overriding the occupancy mode

The TEC supports a manual override of all other schedule sources (for example, Schedule, Occupancy BI, and
temporary occupancy).

Enabling optimal start

The TEC supports an advanced optimal start algorithm. The algorithm works in conjunction with a local schedule to
pre-heat or pre-cool the zone before scheduled occupancy periods begin, in order to bring the zone to the desired
occupied setpoint when the scheduled occupancy period begins. Occupant comfort is ensured while automatically
minimizing energy usage. This algorithm creates a model of the zone being controlled and automatically
determines when to start the equipment before the scheduled transition to Occupied. The start time automatically
adjusts daily to minimize the time between reaching setpoint and entering Occupied state.
Note: Optimal Start does not work when the schedule source is set to External.
TEC3000 Series Networked and Wireless Proportional Fan Coil and Individual Zone Thermostat Controllers with
Details
This is the default mode and the original mode of operation that the TEC was released with
(the next three modes are new). In this mode, the TEC has a heating setpoint and a cooling
setpoint. There is a common Setpoint Offset (warmer/cooler adjust) that is applied to each
setpoint simultaneously. The range of setpoint adjustment is two-fold:
• There are large constant ranges bounding the individual heating and cooling setpoints.
• There is also a smaller configurable range limit set to the Setpoint Offset point (Control
Setup > General > Max Setpoint Offset).
In this mode, the TEC has a heating setpoint and a cooling setpoint. Each setpoint has a
configurable range (Setpoints > Min Cooling Setpoint, Max Cooling Setpoint, Min
Heating Setpoint, and Max Heating Setpoint). The configurable range values are bounded
by the larger constant bounds used in Setpoint Offset mode and are constrained in the
following manner: Min must be below Max and Heating must be below Cooling, so in order
from least to greatest, the values are: Min Heating Setpoint, Max Heating Setpoint, Min
Cooling Setpoint, and Max Cooling Setpoint.
In this mode, the TEC has one setpoint, Common Setpoint, for heating and cooling. There is
also a common Setpoint Offset (warmer/cooler adjust) that is only applied to Common
Setpoint. Otherwise, this setting works the same as when Occ Setpoint Select = Setpoint
Offset and Heat Cool Setpoint Mode = Individual Setpoints.
In this mode, the TEC has one setpoint, Common Setpoint, for heating and cooling. There is
a configurable range for Common Setpoint, Min Setpoint, and Max Setpoint.
Dehumidification Capability Quick Start Guide
20