AMX ENV-VST-C - Manual (Page 7)

Introduction
1 ViewStat Color Communicating Thermostat
Introduction
The ViewStat Color Communicating Thermostat enables you to completely control your heating,
ventilation, and air-conditioning (HVAC) system. The thermostat provides the current temperature (from
an on-board sensor, a remote sensor, or an average of the on-board and remote sensors), controls and
displays humidity, and displays the current outdoor temperature. The ViewStat Color Thermostat
displays this information on a 3.5" (8.89 cm) color display. In addition, the ViewStat Color Thermostat
provides the current day's weather forecast along with a five-day forecast. The forecast information is
driven from AMX’s i!-Weather application. The thermostat receives the forecast information from a
NetLinx Master, with an internet-enabled IP connection, via AxLink. A three-year subscription to
i!-Weather is included with purchase of the thermostat.
System Components
The following table lists the specifications for the ViewStat Color Communicating Thermostat:
ViewStat Color Thermostat Specifications
Control Voltage 24 VAC (interfaces with a power supply through the R-C terminals)
Warning: Exceeding the control voltage may cause damage to the thermostat.
Switched Voltage 18 – 30 VAC, 57-63 Hz
Maximum Operating Current 2 amps total at rated voltage, through all outputs.
1 amps through any one output.
Maximum Surge Current 2.0 A
Internal Battery CR2032 for maintaining real-time clock settings during a power loss.
Control Accuracy ±1.0° F (± 0.56° C)
±3% relative humidity
Temperature Range Maximum displayable indoor temperature: 40° – 99° F (5° – 37° C)
Maximum displayable outdoor temperature: -40° – 120° F (-40° – 49° C)
Operating Range 32° – 122° F (0° – 50° C)
Front Panel Components:
Main LCD display 3.5" (8.89 cm) color QVGA (320 x 240) Thin Film Transistor Liquid Crystal
Display (TFT-LCD). The main display provides the mode status, temperature,
and system status information.
Navigation buttons The Navigation buttons are used to change various parameters on the
thermostat, including the temperature setpoints. These buttons are located
beneath the display.
Mode/Select button The Mode/Select button is used to navigate through the various thermostat
screens, including the weather screens. This button is located beneath the
display.
Circuit Board Components:
Communication and HVAC
Equipment connectors Terminals with captive-wire connectors that connects to the thermostat, HVAC
equipment, control system, remote sensors, and power supply. See the
Communication and Equipment Terminal Wiring Definitions section on page 7
for more information.
Enclosure:
Material White plastic and removable front panel. Panel can be painted to match wall
decor.
Warning: If you paint the panel, do not paint over the exposed thermistor.
Doing so can cause the external temperature sensor to work improperly.
Dimensions (HWD) 5.31" x 3.93" x 1.18" (13.48 cm x 9.98 cm x 2.99 cm)