Honeywell TH8320R1003 Vision Pro 8000 Product Data page 78

®
VISIONPRO 8000 WITH REDLINK™
Fossil Fuel Backup Heat (Backup Heat NOT
Allowed to Run with Heat Pump)
HEAT MODE
The thermostat turns on Backup Heat only when the indoor
temperature drops to the selected Backup Heat Droop setting
or the Backup Heat Upstage Timer expires (whichever occurs
first). Geothermal Forced Air Heat turns off when the Backup
Heat turns on. Geothermal Radiant Heat stays on when the
Backup Heat turns on.
EMERGENCY HEAT MODE
The thermostat turns on the Backup Heat to maintain the
desired temperature setting. Geothermal Radiant Heat and
Geothermal Forced Air Heat are not used.
Set Up Geothermal Radiant Heat
1. Select Geothermal Radiant Heat as shown in Fig. 168.
2. Select the number of Radiant Heat Stages. See Fig. 169.
3. Select the universal terminals wired to the Geothermal
Radiant Heat. See Fig. 170.
68-0312—01
Fig. 168.
Fig. 169.
Fig. 170.
4. Select a Geothermal Forced Air Option. For example, if
Geothermal Forced Air is used for both heating and cool-
ing, select the "Heating and Cooling" option. See Fig.
171. Other options are "None" (Geothermal Forced Air is
not used) and "Cool Only" (Geothermal Forced Air is
only used for cooling).See Fig. 171.
5. Select the Reversing Valve. See Fig. 172.
6. Select the number of Compressor and Backup Heat
Stages. See Fig. 173.
78
Fig. 171.
Fig. 172.
Fig. 173.