VISIONPRO® 8000 SMART THERMOSTAT
3
33-00096—05
SPECIFICATIONS
Thermostat Description:
Power Consumption of TH8321:
Backlight on: 1.48 VA
Backlight off: 0.88 VA
Temperature Setting Range:
Heating: 40 to 90 °F (4.5 to 32 °C).
Cooling: 50 to 99 °F (10 to 37 °C).
Temperature Sensor Accuracy:
± 1.5 F at 70 F (0.75 C at 21.0 C)
Humidification Setting Range:
10% to 60% RH.
Dehumidification Setting Range:
40% to 80% RH.
Humidity Display Range:
0% to 99%.
Humidity Sensor Accuracy:
± 5% RH from 30% to 50% RH at 75 F.
Cool Indication:
VisionPRO® 8000 Smart thermostat displays “Cool On”
when the thermostat turns the cooling on.
Heat Indication:
VisionPRO® 8000 Smart thermostat displays “Heat On”
when the thermostat turns the heating on.
Auxiliary Heat Indication:
VisionPRO® 8000 Smart thermostat displays “Aux Heat On”
when the thermostat turns the auxiliary heat on.
Interstage Differential:
Comfort: The thermostat keeps the indoor temperature
within 1 degree of the setpoint (droop less control). The
thermostat turns on stage 2 when the capacity on stage
1 reaches 90%.
When the interstage differential is set to 1.0 or higher, the
thermostat stages the equipment based on how far the
indoor temperature is from the setpoint (ISU 303 to
309). See page 16 for more information.
Clock Accuracy:
1 minute per month at 77 °F (25 °C). ± 2
minutes per month over the operating ambient tem-
perature range.
Mounting Means:
Thermostat mounts directly on the wall in the living space
using mounting screws and anchors provided. Fits a
horizontal 2 x 4 in. junction box.
Fig. 1. Dimensions of thermostat in in. (mm).
Feature
Description
Powering method
•
Common wire
System types (up
to 3 heat/2 cool
heat pump and up
to 2 heat/2 cool
conventional)
•
Gas, oil or electric heat with air
conditioning
•
Warm air, hot water, high-
efficiency furnaces, heat pumps,
steam and gravity
•
Cool only
Changeover
Manual or Auto changeover
selectable
System setting
Em Heat-Heat-Off-Cool-Auto
Fan setting
Auto-On-Circ-Follow Schedule
Terminal
Voltage
(50/60 Hz)
Max.
Current
Rating
W - O/B
18 to 30 VAC and
750 mVDC
1.00A
Y (cooling)
18 to 30 VAC
1.00A
G (fan)
18 to 30 VAC
0.50A
W2 - Aux 1 (heating)
18 to 30 VAC
0.60A
Y2 (cooling)
18 to 30 VAC
0.60A
A-L/A (Output)
18 to 30 VAC
1.00A
U1, U1, S1, S1
30 VAC max.
0.50A
M34521
4-15/16 (126)
4-5/8
(118)
1-1/8 (29)
3-5/16 (84)
