Honeywell THM5421C1008

Automation and Control Solutions

Honeywell International Inc. Honeywell Limited-Honeywell Limitée

1985 Douglas Drive North 35 Dynamic Drive

Golden Valley, MN 55422 Toronto, Ontario M1V 4Z9

customer.honeywell.com

VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM

® U.S. Registered Trademark

US Patent No. 6,208,263; 6,373,376; 6,448,901; 6,926,076;

7,044,397; D509151; H25192; H25193 and other patents pending

68-0287—1 M.S. Rev. 10-06

Contents

Main PRODUCT DATA VisionPRO IAQ Total Home Comfort System APPLICATION FEATURES Contents SPECIFICATIONS Page INSTALLATION When Installing this Product... Selecting Location Installing Wallplate Installing Equipment Interface Module (EIM) Communication LED WIRING Page 768-02871 Fig. 13. Typical hookup of heat pump system (up to 4H/2C heat pump). Fig. 14. Typical hookup of non-powered humidifier. Fig. 15. Typical hookup of powered humidifier. Fig. 17. Typical hookup of powered whole house dehumidifier (contacts normally open). KEY POWER THE THERMOSTAT Wiring 24 Vac Common Mount Thermostat to Wallplate Locate and Mount C7089U1006 Outdoor Temperature Sensor (Optional) Wire C7089U1006 Outdoor Sensor Locate and Mount C7189U1005 Remote Indoor Temperature Sensor (Optional) Wire C7189U1005 Indoor Sensor Install Discharge Air Temperature Sensor (Optional): Set Calendar and Time INSTALLER SETUP Using Auto Discover 5. Press the Done key to exit the Installer Setup screen. Table 3. Installer Setup Menu. Page Page Page Page INSTALLER SYSTEM TEST How to Use the Installer System Test Installer System Tests Thermostat Display OPERATION Thermostat Keys System and Fan Settings System Fan Control Humidification Level Control Dehumidification Level HEAT PUMP OPERATION Heat Pump LED Indication Heat Pump Emergency Heat LED Indication Heat Pump Temperature Lockouts Dual Fuel Heat Pump and Outdoor Temperature Sensor Dual Fuel Heat Pump Control Balance Point Only (ISU345 = 0) Operation in Emergency Heat Mode Operating Sequence Multi-Stage Heat and Cool Control User Setup 5. Press the Done key to exit the User Setup screen. PROGRAMMING Preprogrammed Energy Star Settings Program Heating and Cooling Schedule Table 8. User Setup Menu. Table 9. Energy Star Default Program Settings. Schedule Period Time Edit Schedule Cancel a Schedule Period Fan Schedule Fan Control Manual Override of Fan Schedule On Circ None None Circ On Circ Fan G Circ Circ Auto a Circ On Fan G On OPERATE VISIONPRO IAQ Set Time Set Temperature Overrides Clean Thermostat Screen Screen Locks Partially Locked Screen Fully Locked Screen Humidification Control Page Page P+I Control Minimum Off-Timer Inside Humidity Level Page Checkout Calibration COMMUNICATION ERROR CODES TROUBLESHOOTING Page Page COMPATIBILITY