Leviton omnistat 3 Directives D'installation page 23

MENU/SUB-MENU DESCRIPTIONS - Continued
8. Minimum On – defines the minimum amount of time (in minutes) that the HVAC
system will run when a call for heat or cool is made. The value can be set from 2 – 10
(minutes). By default, this value is set to 3 (minutes). NOTE: This applies only when
the thermostat is untouched – any user interaction will override this value.
9. Minimum Off - defines the minimum amount of time (in minutes) that the HVAC
system will remain off when a call for heat or cool has been satisfied. The value
can be set from 2 – 10 (minutes). By default, this value is set to 3 (minutes). NOTE:
This applies only when the thermostat is untouched – any user interaction will
override this value.
10. Reversing Valve – defines when the reversing valve (on applicable systems) is
energized, and has two settings – Heat (energizes the reversing valve when in Heat
mode) and Cool (energizes the reversing valve when in Cool mode). The default
value is Cool.
11. Fan With Heat – is used to tell the thermostat whether the system fan is engaged on
a call for heat, and can be set to Enabled or Disabled. The default setting is Disabled.
12. Calibration – is used to calibrate the reported temperature on the display. By
default, this value is 0 and can be set from -10 to +10 degrees, where – values will
lower the reported temperature by approximately 1 degree and + values will increase
the reported temperature by approximately 1 degree per value. CRITICAL NOTE:
When adjusting the calibration, it is strongly recommended that nominal
changes (no more than 2 degrees) be made and then allowing the thermostat
to stabilize for several minutes.
Hospitality Settings – this menu item allows you to set the parameters for occupancy,
using the onboard sensor and/or other Lumina™ RF occupancy sensors. The configurable
items are:
1. UnOcc Setbacks – used to enable/disable the unoccupied setbacks when the
thermostat senses the room/area is unoccupied. By default, this item is Enabled.
2. UnOcc Cool Setback – the number of degrees that will be added to the current
cool setpoint when the thermostat senses the room/area is unoccupied. The default
value is 5 degrees, but can be increased to 10 degrees, in 1 degree increments. The
thermostat will apply the setback when the room/area is unoccupied.
3. UnOcc Heat Setback – the number of degrees that will be subtracted from the
current heat setpoint when the thermostat senses the room/area is unoccupied.
The default value is 5 degrees, but can be increased to 10 degrees, in 1 degree
increments. The thermostat will apply the setback when the room/area is
unoccupied.
4. Occ Cool Setpoint – determines the cool setpoint that is set when occupancy is
initially sensed after being unoccupied for a period greater than 4 hours. The default
value is 73 degrees. (See **** Note for example)
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