AMX ViewStat, Instruction Manual

Page: 8 / 76

Product Information
2
ViewStat Communicating Thermostat
System Components
The components in a complete ViewStat system (including optional accessories) are listed below:
ViewStat Specifications
System Components
Component Name Description
ViewStat (VST) Communicating thermostat
VST-TTM Temperature support module (optional)
VST-TRH Temperature/Humidity support module (optional)
VST-TSF Flush-mount remote sensor Indoor flush-mount temperature/relative humidity sensor (optional)
VST-TSO Duct/Outdoor remote sensor Duct/Outdoor-mount temperature/relative humidity sensor (optional)
VST-DIST Distribution Panel
ViewStat Specifications
Control Ports • HVAC control
• ICSNet
Control Voltage 24 VAC ±20% or 24 VDC ±20% (delivered by an HVAC system or by an external
power supply)
Switched Voltage 18 – 30 VAC
Maximum Operating Current • 2 amps total at rated voltage, through all outputs.
• 1 amps through any one output.
Maximum Surge Current 2.0 A
Control Accuracy ±1.0° F (± 0.56° C)
Control Range 40° – 90° F (4.44° – 32.22° C)
Operating Range 32° – 99° F (0° – 37.22° C)
Baud Rate 9600
Front Panel Components:
Message display Two types of messages are displayed, Permanent and Temporary Messages.
• Permanent Messages are those that scroll continually during thermostat
operation.
• Temporary (flashing) Messages are intended to catch your eye and must be
reset to be removed from the display.
Thermostats are shipped with default (permanent) status messages (i.e. mode
status, fan status, equipment status).
Scroll/Set-up buttons The Scroll/Set-Up buttons function with the set-up features of the thermostat
(see the
Set Up and Configuration section on page 45). These buttons are
located beneath the faceplate.
Main LCD display The MAIN DISPLAY (see FIG. 16 on page 25) provides the mode status, tem-
perature and system status information.
Mode button Five modes of operation are available: OFF, COOL, HEAT, AUTO, and EM.
HEAT (for heat pumps only). The mode of operation indicates how you want
your heating and cooling equipment to operate. This button is located beneath
the faceplate.
Fan button The fan can be operated continuously (FAN ON) or only when there is a need to
heat or cool. This button is located beneath the faceplate.
Enter button The Enter (or Network Override) button is used to override the home automation
system, to clear temporary flashing messages on the message display and with
the set-up features of the thermostat.
Adjust buttons The Adjust buttons adjust the heating and cooling temperature settings.
(Cont.)