Residential Control Systems TXB16 Manual do Proprietário Página 235

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Chapter 19 Thermostats 221
Wait 0:00:10.00 with timer #1 (Thermostat Request Timer)
Request Zone 3 Temperature Report
End Wait
Refresh Zone ## System Mode
Refresh Zone ## Fan Mode
Refresh Zone ## Temperature Setting
These commands "refresh" the specified thermostat (from 1 to 16) setting. "Refresh" means that the
controller looks at the current setting (a system variable maintained inside the controller) and sends
the same command to the thermostat.
This command can be used to ensure that the thermostat is in the desired state. If the thermostat
has been changed manually and the controller does not know it, this will put the thermostat back into
the old state.
Thermostat Data Commands
These thermostat data commands operate on the thermostat system variables, described below.
Thermostat System Variable Summary
The controller has 64 internal "system" variables that it uses to hold the thermostat data. Each of the 16
available zones has these four variables:
Current Temperature
: The zone's current temperature. For zones 1 and 2, this is the temperature
reading that is displayed on the TV Thermostat Control Screen. This value can
be changed in the following two ways:
- By a command in your schedule (perhaps after reading the temperature
from a temperature sensor).
- By the thermostat reporting a new temperature setting to the controller. Of
course, this is only possible if the thermostat can report its temperature (like
the RCS TX10-B and TX15-B or serial thermostats can).
Temperature Setting
: The zone thermostat's temperature setting. For zones 1 and 2, this is the
temperature setting that is displayed on the TV Thermostat Control Screen.
This setting can be changed in the following ways:
- From the TV Thermostat Control Screen.
- By a command in your schedule.
- By the thermostat reporting a new temperature setting to the controller.
- If the controller is running the zone to a time/temperature schedule, this
variable will be set to the desired temperature at the scheduled time (and
the setting will also be transmitted to the thermostat).
Zone Configuration
: This variable stores the thermostat type and house code for the zone. It can
only be changed from the Thermostat Configuration Screens in the PC software
and video menu system.
Zone Status
: This variable stores the current operating modes of the zone. Three different
modes are tracked and stored in this variable:
- HVAC system mode (Heat, Cool, Auto, or Off)
- Fan mode (On or Auto)
- Control mode (Run or Hold)
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