Honeywell FocusPRO TH6220D Installation Manual page 2

Product Application
This thermostat provides electronic control of 24 VAC single-stage and multi-stage
heating and cooling systems,
or 750 mV
heating systems.
System Types
(up to 2 heat/2 cool)
• (ats, oil, or electric heat with air
conditioning
• Warm air, hot water, high-efficiency
fl|rnaces, heat pumps, steam, gravitT
• Heat only -- two-wire systems,
power to open and close zone
valves (Series 20), and normall D
open zone valves
• Heat only with fan
• Cool only
• 750 mV heating systems
Power Options
• Battery power only
• Common wire only
• Common wire with batte W backup
Changeover Options
• Selectahle manual or
auto-changeover
modes
System Settings
• Heat, Oft, Cool, Auto, Em Heat
Fan Settings
. Auto, On
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.
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Copyright ® 2005 Honeywell International Inc. All rights reserved.