Pre-Occupancy Purge; Battery Replacement - Honeywell Home VisionPRO 8000 Manual

Time of Day (TOD)
The thermostat can be set up for a Time of Day output in
the installer setup. This output is commonly used to control
lighting panels, turning them on for occupied periods and
off for unoccupied periods. Table 7 explains how the TOD
feature works with various thermostat modes.
Table 7. TOD Operation.
Thermostat Mode
Occupied
Occupied temporarily
Temperature overrides
Unoccupied
Unoccupied temporarily
Standby
Non-programmable
* If an EIM is used, or ISU 222 "Economizer fault FDD" is
set to "no" then the A-L/A is used for TOD control. If ISU
222 "Economizer fault FDD" is set to "yes" then the U1
contacts are used for TOD control.
The Economizer Module and Time of Day output connect
to the A-L/A terminal at the thermostat or EIM and are set
up at ISU 222.
Fig. 296.

Pre-Occupancy Purge

The thermostat can be set up for Pre-Occupancy Purge in
the installer setup (ISU 401). When setup for Pre-
Occupancy Purge, the thermostat runs the fan 1 to 3 hours
before each occupied period to provide a comfortable
workplace upon arrival. Options are Off and 1 to 3 hours.
Borne A-L/A
or U contacts*
A-L/A
energized or U
contacts
closed*

Battery Replacement

A-L/A NOT
energized or U
Thermostat
contacts open*
Install fresh batteries when the REPLACE BATTERY
warning begins flashing. The warning flashes about 60
days before batteries are depleted.
Even if the warning does not appear, it is recommended to
replace batteries once a year, or before leaving home for
more than a month.
Press the release button on top of the thermostat to
remove it from the wall plate. Install 4 fresh AA alkaline
batteries.
Button
Thermostat
109
®
VISIONPRO 8000 WITH REDLINK™
Fig. 297.
Replace Batteries
Press HERE for info
Fig. 298.
Wallplate
Thermostat
M34071
(back view)
Fig. 299.
MCR34144
68-0312—06