Remote Indoor Sensors; Indoor Sensor Operation; Wireless Indoor Sensor - Honeywell Home THX9321 Prestige 2.0 Manual

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THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE

REMOTE INDOOR SENSORS

For installation, see "Mounting C7189R1004 Wireless
Indoor Sensor" on page 67, and "Mounting C7189U1005
Wired Indoor Sensor" on page 68. For wiring, see "Wiring
guide — Wired Indoor Sensors" on page 154.

Indoor Sensor Operation

Temperature Control
The thermostat can be set to respond to its internal
temperature sensor, or to an optional remote indoor sensor.
If multiple sensors are used, the thermostat will average
the temperature detected at each sensor.
Fig. 315.
Humidification Control
If optional remote indoor sensors are installed, you can
choose which sensor you want to use for humidification
control. You can use a different sensor for
dehumidification.
NOTE: Requires wireless indoor sensor.
Fig. 316.
Dehumidification Control
If optional remote indoor sensors are installed, you can
choose which sensor you want to use for dehumidification
control. For example, you can use one sensor for
humidification control, and another for dehumidification.
NOTE: Requires wireless indoor sensor.
68-0311—08
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IAQ WITH EIM

Wireless Indoor Sensor

The wireless indoor sensor senses temperature and
humidity in remote locations and communicates that
information wirelessly to the thermostat.
The indoor sensor can be used to do the following:
• Maintain a more consistent temperature throughout the
building by averaging temperatures. Temperatures from
all sensors, including the thermostat, are weighted
equally.
• Relocate sensing location (thermostat is in a poor
location).
• Relocate the thermostat (if you want to hide the
thermostat).
• Humidify and dehumidify in separate spaces (for
instance, humidify on the main level, and dehumidify in
the crawl space).
You can connect up to 6 Wireless Indoor Sensors to the
thermostat. If you connect a Wired Indoor Sensor network
to the S1, S2, S3, or S4 terminals, you can connect up to 5
Wireless Indoor Sensors to the thermostat.
The indoor air sensor has a 1 year battery life.
Battery level indicators (when batteries are inserted)
• Good: Status light flashes green for 5 seconds.
• Low: Status light flashes red for 5 seconds. Use fresh
batteries.
Battery level indicators (during use)
• Good: Status light remains off.
• Low: Battery power will be depleted in about 2 months.
Thermostat displays Low Battery warning. Status light
remains off.
• Critical: Battery power will be depleted in about 2–3
weeks. Status light flashes red.
130
Fig. 317.