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Chapter 19 Thermostats 209

CHAPTER 19: THERMOSTATS

Introduction

The controller provides extensive capabilities to control and monitor multiple thermostats. The key features

include:

• TV screens to control and view status of two HVAC zones.

• Automatic control of two zones to custom time/temperature schedules. At the specified times, the

controller sends commands to the thermostat(s) to change to the new temperature setting.

Capabilities include:

- Schedules can contain 8 times/temperatures per day, for three different days (Monday-

Friday, Saturday, and Sunday).

- There are separate schedules for Heat, Cool, and Auto modes.

- You can modify the schedules from your TV or PC.

• Commands you can include in your schedule to directly control each zone (up to a maximum of 16

zones). These commands control RCS TX10, TX10-B, TX15, and TX15-B thermostats. They can

also read the settings back from the bi-directional TX10-B and TX15-B. In addition, they support the

RCS serial (RS232 and RS485) thermostats. There are also a variety of conditions you can use in

If-Then statements. Note: The newer TXB16 thermostat should function similar to the TX15-B

thermostats discussed herein.

• Internal controller "system" variables to track the status of up to 16 HVAC zones. These thermostat

variables are automatically updated by the controller, making thermostat control much simpler than if

you had to create your own variables to do this.

• A PC Thermostat Configuration Screen to configure up to 16 thermostats.

• A TV Thermostat Configuration Screen to set up or change the zone 1 and 2 thermostat

configurations.

• A PC Thermostat Control Screen to control the zone 1 and 2 thermostats.

• With a few simple commands in your schedule you can easily set up your HVAC system to do these

things and more:

- When you leave home, set the thermostat back and put it into the "Hold" mode.

- When you return home, put the thermostat into the "Run" mode and change the temperature

setting to the currently-scheduled temperature.

- Automatically switch between Heat and Cool modes based on the current temperature (as

read from the thermostat itself or from an analog temperature sensor).

- Periodically check the temperature setting, current temperature, or HVAC system mode for

errors (or wrong settings) and correct them or issue an alert.

• If you can leave your PC running, you can control EnerZone StatNet thermostats. Refer to the file

"StatNet" installed in the HomeVision directory for details.

This description is divided into three sections:

1) Built-in control

. Describes the capability for automatically controlling two zones of RCS X-10

thermostats. You can use these features to setup your thermostat(s) in virtually no time.

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Residential Control Systems TXB16 Manual do Proprietário Página 223