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Environmental & Combustion Controls
TH8321U1006
Premier White® Universal Programmable Thermostat with Dehumidification Control, automatic/manual changeover and up to 3 Heat/2 Cool stages for heating and cooling systems
Hazmat# UN3091 Lithium metal batteries packed in/with equipment

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Overview
The VisionPRO Touchscreen Universal Programmable Thermostats provides electronic control of 24 Vac heating and cooling systems or 750 mV heating system.

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Features

• Large, Clear Display with Backlighting current temperature, set temperature and time are easy-to-read and all are displayed on the home screen.
• Menu Driven Programming Guides you through the scheduling process, showing only necessary information and choices on each screen.
• Ability to Select Multiple Days allows you to easily customize the thermostat for your unique schedule.
• Real-Time Clock keeps time during power failure; automatically updates for daylight saving time.
• Armchair Programming allows you to remove thermostat from wall to set the schedule.
• Precise Temperature Control (+/-1 F) reliable, consistent comfort.
• Multiple HOLD options allow you to modify schedule indefinitely or for a specific time.
• Change Reminders reminds you to service or replace the air filter, humidifier pad, ultraviolet lamp or thermostat batteries.
• Adaptive Intelligent Recovery™ - ensures programmed temperature is reached by programmed time.
• Temperature range stops - prevents user from setting the temperature too high or too low.
• Keypad lockout options for partial or full lockout.
Product Specifications  Back To Top
Description VisionPRO® Touchscreen 7-Day Programmable 3 Heat/2 Cool Conventional and Heat Pump Thermostat with Dehumidification Control
Application Heat/Cool or Heat Pump with Auxiliary Heat
Programmability 7 Day Multiple Day Programming or Non-Programmable
Changeover Auto/Manual Selectable
Color Premier White®
Switch Positions (System) HEAT-OFF-COOL-AUTO-EM.HEAT
Switch Positions (Fan) AUTO-ON-CIRC
Power Method Battery or Hardwired
Terminal Designations R, RC, W (O/B), W2 (AUX), Y, Y2, L, E, G, C, S1, S2
Dimensions (in.) 4 9/16 in. high x 6 in. wide x 1 1/4 in. deep
Dimensions (mm) 116 mm high x 152 mm wide x 32 mm deep
Mounting Horizontal
Electrical Ratings 20 to 30 Vac or 750 mV
Frequency 50 Hz
Frequency 60 Hz
Setting Temperature Range (F) Heat: 40 F to 90 F; Cool: 50 F to 99 F
Setting Temperature Range (C) Heat: 4.5 C to 32 C; Cool: 10 C to 37 C
Differential Temperature (F) ± 1 F
Differential Temperature (C) ±0.5 C
Stages Up to 3 Heat/2 Cool Heat Pump
Stages Up to 2 Heat/2 Cool Conventional
Outdoor Sensor Yes, optional outdoor or indoor remote
Remote Sensor Yes, optional outdoor or indoor remote
Sensor Element Thermistor
Heat Current 1.0 A running
Cool Current 1.0 A running
Fan Current 0.6A running
Operating Humidity Range (% RH) 5 to 90% RH, non-condensing
Comments Includes Dehumidification Control. Conventional and heat pump systems. The L terminal is an input or output.
Comments Selectable: Programmable or Non-Programmable
Display Size 10 sq. in.
Dehumidification Setting Range 40 to 80% RH.
Voltage 20 to 30 Vac or 750 mV

Literature and other Resources Download Back To Top
Product Data - (TH8321 VisionPRO 8000 Touchscreen Programmable Thermostat)
Product Data - (TH8321 Thermostat programmable VisionPRO 8000 - FRENCH)
Product Data - (TH8321 Termostato programable VisionPRO 8000 con pantalla sensible al tacto, SPANISH)
Installation Instructions - (TH8321 Thermostats programmables a ecran tactile - French - "VisionPro")
Competitive Comparison - (TH8321 TH8320, TH8321, TH8110 VisionPRO 8000 Touchscreen 7-Day Programmable Thermostat (Up to 3H/2C Conventional & Heat Pump))
Pocket Guide - (TH8321 VisionPRO 8000 Thermostats Installer Setup and System Test)
Pocket Guide - (TH8321 Thermostats VisionPro Guide de poche de configuration par l'installateur et test du system - French)
Pocket Guide - (TH8321 VisionPRO Thermostats Installer Setup and System Test - Spanish)
Operating Manual - (TH8321U1006 TH8000, TH8110, TH8110U, TH8320, TH8320U, TH8321, TH8321U, TH8000 Series, VisionPRO Touchscreen Programmable Thermostat)
Installation Guide - (TH8321U1006 TH8000, TH8110, TH8110U, TH8320, TH8320U, TH8321, TH8321U, TH8000 Series, VisionPro Touch-screen Programmable Thermostat)
Installation Instructions - (TH8321U1006 TH8000, TH8110, TH8110U, TH8320, TH8320U, TH8321, TH8321U, TH8000 Series, VisionPro Touch-screen Programmable Thermostat)
Sell Sheet - (TH8321 VisionPRO 8000 Touchscreen 7-Day Programmable Thermostat)
Installation Instructions - (TH8321 VisionPRO Cover Plate - English, French, Spanish)
Installation Instructions - (TH8321 Termostatos programables con pantalla sensible al tacto - Spanish - "VisionPro")
Owners Manual - (TH8321 Termostatos progamables - Spanish - "VisionPro")
Installation Instructions - (TH8321 Touch Screen Programmable Thermostats - "VisionPro")
Owners Manual - (TH8321 Thermostats-"VisionPro")
Installation Guide - (TH8321U TH8000 Series, VisionPro Touch-screen Programmable Thermostat - English/French)
Installation Guide - (TH8321U TH8000 Series, VisionPRO Touch-screen Programmable Thermostat - English/Spanish)
Installation Instructions - (TH8321 Range Stop Instructions - English, Spanish)
Owners Manual - (TH8321 Thermostats programmables -French - "VisionPro")
Inserting wires in terminal block for TH8320U and TH8321U Installation(LineArt)
Inserting wires in terminal block for TH8320U and TH8321U Installation(LineArt - Web Quality Image)
Heat pump operation with lockout temperatures set Graph(LineArt)
Heat pump operation with lockout temperatures set Graph(LineArt - Web Quality Image)
Typical hookup of conventional multistage two-stage heating and two-stage Wiring(LineArt)
Typical hookup of conventional multistage two-stage heating and two-stage Wiring(LineArt - Web Quality Image)
Typical hookup of conventional multistage two-stage heating and two-stage Wiring(LineArt)
Typical hookup of conventional multistage two-stage heating and two-stage Wiring(LineArt - Web Quality Image)
Typical hookup of conventional heat pump Wiring(LineArt)
Typical hookup of conventional heat pump Wiring(LineArt - Web Quality Image)
Typical hookup of single-stage heat pump Wiring(LineArt)
Typical hookup of single-stage heat pump Wiring(LineArt - Web Quality Image)
Typical hookup of multistage heat pump Wiring(LineArt)
Typical hookup of multistage heat pump Wiring(LineArt - Web Quality Image)
L terminal switch to R (power) side of system transformer Wiring(LineArt)
L terminal switch to R (power) side of system transformer Wiring(LineArt - Web Quality Image)
Mounting wallplate Installation(LineArt)
Mounting wallplate Installation(LineArt - Web Quality Image)
wire C7089 Outdoor Sensor to the thermostat Installation(LineArt)
wire C7089 Outdoor Sensor to the thermostat Installation(LineArt - Web Quality Image)
32003796-001 Cover Plate dimensions Dimension(LineArt)
32003796-001 Cover Plate dimensions Dimension(LineArt - Web Quality Image)
remove old batteries from thermostat Callouts(LineArt)
mount thermostat to wall Installation(LineArt)
mount thermostat to wall Installation(LineArt - Web Quality Image)
Thermostat display callouts Callouts(LineArt)
Thermostat display callouts Callouts(LineArt - Web Quality Image)
Typical hookup of heat only system with normally open zone valves Wiring(LineArt)
Typical hookup of heat only system with normally open zone valves Wiring(LineArt - Web Quality Image)
Set calendar and time Callouts(LineArt)
Set calendar and time Callouts(LineArt - Web Quality Image)
Set calendar and time Callouts(LineArt)
Set calendar and time Callouts(LineArt - Web Quality Image)
Review thermostat buttons used during Installer System Test Callouts(LineArt)
Review thermostat buttons used during Installer System Test Callouts(LineArt - Web Quality Image)
Typical hookup of conventional multistage two-stage heating and two-stage Wiring(LineArt)
Typical hookup of conventional multistage two-stage heating and two-stage Wiring(LineArt - Web Quality Image)
Dual Fuel heat Pump Operation in Heat mode with Balance Point Set Graph(LineArt - Web Quality Image)
installer setup callouts Callouts(LineArt)
installer setup callouts Callouts(LineArt - Web Quality Image)
Thermostat keys callouts Callouts(LineArt)
Thermostat keys callouts Callouts(LineArt - Web Quality Image)
Proporational temperature control versus P+I temperature control Graph(LineArt)
Proporational temperature control versus P+I temperature control Graph(LineArt - Web Quality Image)
C7189U Remote Indoor Sensor dimensions Dimension(LineArt)
C7189U Remote Indoor Sensor dimensions Dimension(LineArt - Web Quality Image)
Typical location for C7189 indoor sensor Installation(LineArt)
Typical location for C7189 indoor sensor Installation(LineArt - Web Quality Image)
C7089U Outdoor Sensor Mounting Clip dimensions Dimension(LineArt)
C7089U Outdoor Sensor Mounting Clip dimensions Dimension(LineArt - Web Quality Image)
L terminal switch to R (power) side of sytem transformer Wiring(LineArt)
L terminal switch to R (power) side of sytem transformer Wiring(LineArt - Web Quality Image)
wire C7089 Outdoor Sensor to the thermostat Installation(LineArt)
wire C7089 Outdoor Sensor to the thermostat Installation(LineArt - Web Quality Image)
remove old batteries from thermostat Callouts(LineArt)
push thermostat straight onto the wallplate until it snaps into place Callouts(LineArt)
Thermostat display callouts Callouts(LineArt)
Thermostat display callouts Callouts(LineArt - Web Quality Image)
Set calendar and time Callouts(LineArt)
Set calendar and time Callouts(LineArt - Web Quality Image)
Set calendar and time Callouts(LineArt)
Set calendar and time Callouts(LineArt - Web Quality Image)
VisionPro 8000 Touchscreen Thermostat Main(Photo_BW - Web Quality Image)
VisionPro 8000 Touchscreen Thermostat Main(Photo_BW - Print Quality Image)
VisionPro 8000 Touchscreen Thermostat Main(Photo_Color - Web Quality Image)
VisionPro 8000 Touchscreen Thermostat Main(Photo_Color - Print Quality Image)
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Product Accessories
C7089U1006 - C7089 Remote Outdoor Sensor
C7189U1005 - Remote Indoor Sensor
32003796-001 - Premier White® cover plate 7 7/8 in. (200 mm) x 5 1/2 in. (140 mm)