VISIONPRO
®
IAQ TOTAL HOME COMFORT SYSTEM
68-0287—1 2
SPECIFICATIONS
Thermostat Description:
Electrical Ratings:
Temperature Setting Range:
Heating: 40°F to 90°F(4.5°C to 32°C).
Cooling: 50°F to 99°F (10°C to 37°C).
Operating Ambient Temperature:
VisionPRO
®
IAQ Thermostats: 0°F to 120°F
(-18°C to 49°C).
THM5421C1008: -30°F to 150°F (-34°C to 66°C).
C7089U1006: -40°F to 120°F (-40°C to 49°C).
C7189U1005: 45°F to 88°F (7°C to 32°C).
Shipping Temperature:
VisionPRO
®
IAQ Thermostats: -30°F to 150°F
(-34°C to 66°C).
THM5421C1008: -30°F to 150°F (-34°C to 66°C).
Operating Relative Humidity (Non-condensing):
VisionPRO
®
IAQ Thermostats: 5% to 90%.
THM5421C1008: 5% to 90%.
C7089U1006: 5% to 95%.
C7189U1005: 5% to 95%.
Humidification Setting Range:
Heating: 10% to 60% RH.
Dehumidification Setting Range:
Heating: 40% to 80% RH.
Humidity Display Range:
0% to 99%.
Cycle Rates (at 50% Load):
Heating: Selectable 1 - 12 cycles per hour.
Cooling: Selectable 1 - 6 cycles per hour.
Finish:
VisionPRO
®
IAQ Thermostats: Premier White
®
color.
THM5421C1008: Premier White
®
color.
C7189U1005 Wall Mount Remote Indoor Sensor: Premier
White
®
color.
Clock Accuracy: +/- 1 minute per year.
Resistance Characteristics of Remote Sensors:
C7089U1006 Outdoor Sensor: Negative temperature coeffi-
cient (NTC) means that resistance decreases as the tem-
perature increases. See Table 12 in the Operation section
for sensor resistance characteristics.
C7189U1005 Remote Indoor Sensor: Negative temperature
coefficient (NTC), means that resistance decreases as the
temperature increases. See Table 13 in the Operation sec-
tion for sensor resistance characteristics.
Cool Indication:
VisionPRO
®
IAQ Comfort Systems show “Cool On” on the
thermostat screen when Cool is activated.
Heat Indication:
VisionPRO
®
IAQ Comfort Systems show “Heat On” on the
thermostat screen when Heat is activated.
Auxiliary Heat Indication:
VisionPRO
®
IAQ Comfort Systems show “Aux. Heat On” on
the thermostat screen when Auxiliary Heat is activated.
Calibration:
C7089U1006, C7189U1005 and VisionPRO
®
IAQ Comfort Sys-
tems are factory-calibrated and require no field calibration.
Interstage Differential:
VisionPRO
®
IAQ Comfort Systems operate with droopless
control. Once the thermostat senses that 1st stage is run-
ning at 90% capacity, the thermostat energizes 2nd stage.
Mounting Means:
VisionPRO
®
IAQ Comfort System: Thermostat mounts directly
on the wall in the living space using mounting screws and
anchors provided. Fits a vertical or horizontal 2 x 4 in. junc-
tion box.
THM5421C1008 Equipment Interface Module (EIM) mounts on
HVAC equipment or on a wall in the equipment room.
C7089U1006 Outdoor Sensor: Mounts outside of living space
with mounting clip and screws provided.
C7189U1005 Remote Indoor Sensor: Mounts directly on the
wall using mounting screws and anchors provided.
Cover Plate:
32003796-001 Cover Plate is used to cover marks left on the
wall by the old thermostat.
Dimensions:
VisionPRO
®
IAQ Comfort System: see Fig. 1.
THM5421C1008: see Fig. 2
C7089U1006 Outdoor Sensor Mounting Clip: see Fig. 3.
32003796-001 Cover Plate: see Fig. 4.
C7189U1005 Remote Indoor Sensor: see Fig. 5.
Feature Description
Powering method • Common wire only
System types (up to
4 heat/2 cool)
• Gas, oil or electric heat with air
conditioning
• Warm air, hot water, high-efficiency
furnaces, heat pumps, steam and
gravity
• Heat only with fan
• Cool only
Changeover Manual or Auto changeover selectable
System setting Heat-Off-Cool-Auto
Fan setting Auto-On-Circ
Terminal Voltage (50/60 Hz) Running Current
W1 Heating 20 - 30 Vac .02 - 1.0A
W2/Aux Heating 20 - 30 Vac .02 - 1.0A
W3/Aux2 Heating 20 - 30 Vac .02 - 1.0A
Y Cooling 20 - 30 Vac .02 - 1.0A
Y2 Cooling 20 - 30 Vac .02 - 1.0A
G Fan 20 - 30 Vac .02 - 1.0A
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