Honeywell TH2110D Product Application, System Types, Power Type, System Settings, Fan Settings, Must be installed by a trained, experienced technician

Product Application

This thermostat provides electronic control of 24 VAC single-stage heating and cool-

ing systems,or 750 mV heating systems.

System Types

• Gas,oil, or electric heat with air

conditioning

• Warm air,hot water,high-efficiency

furnaces,heat pumps, steam,gravi-

• Heat only

• Heat only with fan

• Cool only

• 750 mV heating systems

Power Type

• Battery power

• Common wire

• Common wire with battery backup

System Settings

• Heat,Off, Cool

Fan Settings

• Auto,On

Must be installed by a trained, experienced technician

• Read these instructions carefully.Failure to follow these instructions can dam-

age the product or cause a hazardous condition.

• Check the ratings in this booklet to verify that this product is suitable for your

application (see page 12).

• Always test for proper operation after installation (see pages 8-9).

CAUTION: ELECTRICAL HAZARD

Can cause electrical shock or equipment damage. Disconnect power before

beginning installation.

MERCURY NOTICE

If this product is replacing a control that contains mercury in a sealed tube, do not

place the old control in the trash. Contact your local waste management authority for

instructions regarding recycling and proper disposal.

® U.S. Registered Trademark. Patents pending.