Honeywell TB7220 User Manual

19

63-2635—03

When partially locked:

— Pressing a locked key prompts the screen to indicate 

SCREEN LOCKED for five to seven seconds.

— Pressing an unlocked key with SCREEN LOCKED active 

removes SCREEN LOCKED from the display.

PARTIAL LOCKOUT 1
This mode locks all keys except HOLIDAY, OVERRIDE, and 

temperature Up/Down arrows:

— User can change the temperature setpoint, but cannot 

change schedule settings.

— The temporary temperature change lasts until next 

scheduled period. The screen displays that time.

— User can change the temperature setpoint, but cannot 

change schedule settings.

— Pressing HOLIDAY sets the temperature to the Unoccupied 

setting for the selected period of time. The next Occupied 

period switches back to the program settings.

— Pressing OVERRIDE sets the temperature to the Occupied 

setting for the selected period of time. The next Unoccupied 

period switches back to the program settings.

— To cancel the temperature override and follow the 

programmed schedule, press CANCEL.

— To unlock the screen, see Advanced Settings section.

PARTIAL LOCKOUT 2
This mode locks all keys except HOLIDAY and OVERRIDE:

— Pressing HOLIDAY sets the temperature to the Unoccupied 

setting for the selected period of time. The next Occupied 

period switches back to the program settings.

— Pressing OVERRIDE sets the temperature to the Occupied 

setting for the selected period of time. The next Unoccupied 

period switches back to the program settings.

— To cancel the temperature override and follow the 

programmed schedule, press CANCEL.

— To unlock the screen, see Advanced Settings section.

The thermostat is equipped with a feature to eliminate 

guesswork when setting a schedule. That is, the user need not 

know the amount of time for the HVAC system to bring the 

space to temperature (without overshoot) prior to the 

scheduled time.The thermostat manages that automatically.

Simply set the program schedule to the desired time to have 

the space at comfort temperature. In addition, program the 

temperature to this comfort temperature. The thermostat 

activates the heating or cooling at the proper time to reach the 

scheduled temperature at the scheduled time.

NOTE: The setpoint changes gradually to use economical 

stages and avoid overshoot.

For example—the space will be occupied at 8:00 AM and the 

desired temperature is 70°F. Set the OCC 1 period for 8:00 AM 

and 70°F. The thermostat turns on the heat prior to 8:00 AM to 

raise the temperature to 70°F by 8:00 AM.

The thermostat provides an alert that the heating or cooling 

system is coming on before a scheduled time by displaying 

“Recovery” on the screen.

The thermostat has an adjustable Minimum-Off Timer that can 

be set from zero to five minutes (Factory Setting—five 

minutes). The Minimum-Off Timer can be bypassed through 

the Installer System Test or it can be bypassed permanently by 

setting the Minimum-Off Timer to 0 minutes in the Installer 

Setup. The Minimum-Off Timer is activated after the 

compressor turns off:

— If the thermostat is system powered (common wire), the 

Minimum-Off Timer is also activated upon initial startup and 

after power interruptions.

— If there is a call for cooling or heating during the Minimum-

Off Time, the thermostat displays “Wait.”

— When the Minimum Off Timer expires, “Cool On” or “Heat 

On” (heat pumps only)” appears solidly in the display and 

the compressor and fan turn on.

In this operation, there is no external fossil fuel kit (dual fuel kit) 

installed; the thermostat controls this function:

1. Choose correct heat pump application in ISU 0170.

2. Choose Outdoor Temperature Sensor for Heat Pump 

Temperature Lockouts Option in ISU 0340.

3. Choose appropriate Balance Point Temperature in 

ISU 0350.

OPERATION IN HEAT MODE ABOVE BALANCE POINT (OUTDOOR 
TEMPERATURE)
When the outdoor temperature is above the selected Balance 

Point Temperature (ISU 0350), only the compressor operates 

and the fan (G terminal) energizes when the thermostat calls 

for heat.

OPERATION IN HEAT MODE BELOW BALANCE POINT (OUTDOOR 
TEMPERATURE)
When the outdoor temperature is below the selected Balance 

Point Temperature (ISU 0350), only the Fossil Fuel (auxiliary 

heat) operates and the fan (G terminal) does not energize 

when the thermostat calls for heat.

1. Choose correct heat pump application in ISU 0170.

2. Choose Outdoor Temperature Sensor for Control 

Option in ISU 0340.

3. Choose Compressor Lockout Temperature in 

ISU 0350.

4. Choose Auxiliary Lockout Temperature in ISU 0360.

Occupied

—

Energized

Energized

Unoccupied Yes

Energized

De-energized

No

De-energized

De-energized

Override

—

Energized

Energized