Power Type; System Settings; Fan Settings - Honeywell PRO TH4210D Installation Manual

Honeywell programmable thermostat installation guide

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Product Application

This thermostat provides electronic control of 24 VAC heat pump systems with aux-

iliary heat (2 heat/1 cool).

Power Type

• Battery power

• Common wire

• Common wire with battery backup

• Heat, Off, Cool, Em Heat

• 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 7-8).

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.

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