Honeywell Prestige 2.0 THX9421 Manual page 129

Battery Replacement
Wireless Indoor Sensor
M32990
Replace batteries in your indoor sensor when a warning
appears on the thermostat screen, about two months
before batteries are depleted. When the sensor status light
begins flashing red, battery power is critically low and will
be depleted within 2–3 weeks. During normal operation,
the status light remains off. After new batteries are
installed, the indoor sensor will restore communication
with the wireless network within a few seconds.
NOTE: After installing batteries, the status light may
glow amber for up to 20 seconds. Please wait
while the indoor sensor restores communication
with the wireless network.
THX9321 PRESTIGE
Wireless Outdoor Sensor
Replace batteries in your outdoor sensor when a warning
appears on the thermostat screen, about two months
MCR32933
before batteries are depleted.
After new batteries are installed, the outdoor sensor will
restore communication with the wireless network within a
few seconds.
Portable Comfort Control
78
Install fresh batteries when the REPLACE BATTERY
warning flashes on the screen. This warning will flash for
approximately two months before the batteries fail.
After batteries are installed, the remote control will
automatically restore communication with the wireless
network within a few minutes.
129
®
2.0 AND THX9421 PRESTIGE
M32988
SET TO
78
REPLACE
BATTERY
M28896
®
IAQ WITH EIM
MCR32937
MCR28475
68-0311—07