Cool - Cool Mode - Lennox ComfortSense 3000 Series Operation Manual

Heating Demand
The thermostat must be in heat mode in order to properly
control the heating equipment. In heat mode, when the
actual temperature is lower than the temperature set point
the thermostat detects a heating demand and activates the
heating equipment to satisfy the demand. Heating operation
is indicated by a flame icon in the SYSTEM box.
When the actual temperature rises above the temperature
setpoint, the flame icon will disappear. This indicates that
the heating demand has been satisfied and that the heating
equipment has been turned off.
There are two timers govern the restart of heating:
1. Minimum furnace off timer (1.5 minutes only for HG).
2. Minimum cycle timer (six minutes).
For example:
If heating has been on for over six minutes then minimum
cycle timer is already fulfilled. For HG (gas), it will restart
after 1.5 minutes. For HE (electric), it will restart
immediately.
If the heating has not been on for six minutes, it will make up
the six minutes during the off time. Therefore the lock out
time is never six minutes.
COOL - Using the Cool Mode
Enabling and Disabling Cool Mode
Use the COOL button to enable or disable cool mode as
desired. If the thermostat is in HEAT or OFF mode, cool
mode is enabled when the COOL button is pressed. This is
indicated by COOL in the SYSTEM box (see figure 5).
MO
10:30
AM
PM
FAN
ON
HOLD
SYSTEM
SETPOINT
70
°
°
UC
COOL
Figure 5. Turn Cool ON/OFF
Page 5
Heat Cool
Prog Day/Time
Fan Hold
Settings Enter
5/2 DAY PROGRAMMABLE COMMERICAL THERMOSTAT