Honeywell VisionPRO THM5421C1008 Quick Start Manual

VisionPRO
Total Home Comfort System
APPLICATION
®
The VisionPRO IAQ Total Home Comfort System features an
effortless, 7-Day programmable touchscreen thermostat that
provides control of temperature, humidification,
dehumidification, and ventilation.
®
IAQ
FEATURES
• Large, clear display with backlight shows the current
and set temperature and time—even in the dark.
• Touchscreen interaction
• Real-time clock keeps time during power failures and
automatically updates to daylight savings.
• Change/check reminders let you know when to service
or replace filters.
• Various Hold options allow you to override the
program schedule, as desired.
• Controls humidification to increase homeowner
comfort while protecting woodwork and furnishings.
• Controls dehumidification using air conditioner with
high or low speed fan or a whole house dehumidifier.
• Controls ventilation with other HRV, ERV, or Freshair
damper. Vent on demand and automatically using
patented advanced ventilation control.
• Advanced heat pump control featuring balance point
plus 2°F droop to increase homeowner comfort.
Application/Features..........................................................
Specifications/Ordering Information ..................................
Installation ........................................................................
Wiring ...............................................................................
Power the Thermostat ......................................................
Installer Setup .................................................................. 12
Operation .......................................................................... 19
Programming .................................................................... 25
Troubleshooting ................................................................ 35
PRODUCT DATA
Contents
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