Honeywell COMMERCIALPRO TB7220U User Manual

Tb7220u commercialpro™ programmable thermostat, Mercury notice, Caution

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INSTALLATION INSTRUCTIONS

62-0221-05

TB7220U

CommercialPRO™

Programmable Thermostat

APPLICATION

The TB7220U Programmable Thermostat provides electronic control of 24 Vac heating and cooling systems.
See Table 1 for a description.

Table 1. TB7220U Thermostat Description.

MERCURY NOTICE

If this control is replacing a control that contains
mercury in a sealed tube, do not place your old
control in the trash. Dispose of properly.

Contact your local waste management authority
for instructions regarding recycling and the
proper disposal of an old control.

INSTALLATION

When Installing this Product...

1. Read these instructions carefully. Failure to follow

them could damage the product or cause a
hazardous condition.

2. Check ratings given in instructions and on the

product to ensure the product is suitable for your
application.

3. Installer must be a trained, experienced service

technician.

4. After installation is complete, check out product

operation as provided in these instructions.

CAUTION

Electrical Shock or Equipment Damage
Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before installation.

Select Thermostat Location

Select a location for the thermostat about 5 ft (1.5m)
above the floor in an area with good air circulation at
average temperature. See Fig. 1.

Feature

Description

Powering Methods

Battery only
Direct connection to a 24 Vac transformer only
Direct connection to a 24 Vac transformer with battery backup

System Types

Conventional (up to 2 Heat, 2 Cool stages)
Heat Pump (up to 3 Heat, 2 Cool stages)

Changeover

Manual or automatic changeover (selectable)

System Setting

Heat-Off-Cool-Auto

Fan Setting

Auto-On

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