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®
THX9321 PRESTIGE
2.0 AND THX9421 PRESTIGE
Touch the or buttons to set the temperature or the
Hold Until time. The temperature is maintained until the
time you set. Temperature returns to an energysaving level
after the timer expires, or the "Occupied" period ends.
NOTE: This feature is available only when programmed
by the installer.
Ramp Rates
When the ramp rate is set to Off, the thermostat begins
recovery at the scheduled time.
When a ramp rate is set, recovery begins early to reach the
setpoint by the program time. Based on your recovery
ramp setting and how far the thermostat is set back, the
thermostat determines how early to turn on the system.
If an outdoor sensor is installed, you can set outdoor
temperatures for mild, cold and hot days in your region. By
setting these outdoor temperatures, the thermostat will
automatically adjust the ramp rate based on outdoor
conditions. This allows the thermostat to save energy by
starting recovery at the optimum time as outdoor
conditions change.
NOTE: The thermostat uses an adjustable ramp rate
when the thermostat is setup for commercial.
This allows the thermostat to recover on time
during changing conditions (occupancy changes,
temperature overrides, load conditions, open-
ing/closing of doors etc) which are common in
commercial applications.
Fig. 301.
Fig. 302.
68-0311—07
®
IAQ WITH EIM
Custom Names
The thermostat location (name) can be displayed on the
home screen. See the name "OFFICE" in Fig. 303 and 304.
This is useful when multiple thermostats are mounted in a
manager's office or equipment room, to quickly identify
which thermostat is in control of a specific zone or area.
Remote Setback
The thermostat allows you to do REMOTE SETBACK when
set up for commercial use. This feature requires an
occupancy sensor connected to the S1, S2, S3, or S4
terminals at the EIM.
During occupied periods, the sensor tells the thermostat
to go to STANDBY (setback settings) when no one is in the
room. If someone is in the room, then it follows the
settings of the occupied period. The occupancy sensor is
ignored during unoccupied periods.
If the thermostat is setup for non-programmable, the
sensor tells the thermostat to go to STANDBY settings
when no one is in the room. If someone is in the room, then
it follows the settings set by the user.
A Remote Setback Time Delay (ISU 6030) can be set to
force the thermostat to wait before it switches from
occupied settings to the standby settings. This allows the
room to stay comfortable if the room is unoccupied for a
short period of time. When set to 0 minutes, the
thermostat will switch from occupied settings to the
standby settings immediately when the room is
unoccupied.
126
Fig. 303.
Fig. 304.
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