Honeywell TH8321 Product Data page 23

ISU Installer Setup
Number Name
Off
405 Min. Heat Recovery
Ramp Rate 1° F/hr to 20° F/hr
Off
405 Min. Heat Recovery
Outdoor Temp -20° F to 100°F
Table 2. Installer Setup (ISU) Table. (Continued)
Settings Default
5° F/hr
0° F
VISIONPRO® 8000 SMART THERMOSTAT
Residential,
Commercial
or Both
Commercial Off: The heating system will begin recovery at the
time that is scheduled.
When a Minimum Recovery Ramp Rate is set, the
thermostat will begin recovery early to ensure the
temperature is reached at the scheduled time.
Set a Minimum Recovery Ramp Rate based on the
rate that the heating system can recover at for a cold
day in your region. Default setting is 5° F / hour.
If an outdoor sensor is installed, set an Outdoor
Temperature that is representative of a cold day in
your region to be associated with the Minimum
Recovery Ramp Rate. The thermostat will begin
recovery at the optimal time based on a calculated
ramp rate, allowing the system to recover on time
and save energy during changing outdoor
conditions.
During recovery, the setpoint changes at a rate in
degrees per hour depending on the outdoor
temperature. If there is no outdoor sensor, the
Minimum Recovery Ramp Rate is used.
Commercial Off: The heating system will begin recovery at the
time that is scheduled.
When a Minimum Recovery Ramp Rate is set, the
thermostat will begin recovery early to ensure the
temperature is reached at the scheduled time.
Set a Minimum Recovery Ramp Rate based on the
rate that the heating system can recover at for a cold
day in your region. Default setting is 5° F / hour.
If an outdoor sensor is installed, set an Outdoor
Temperature that is representative of a cold day in
your region to be associated with the Minimum
Recovery Ramp Rate. The thermostat will begin
recovery at the optimal time based on a calculated
ramp rate, allowing the system to recover on time
and save energy during changing outdoor
conditions.
During recovery, the setpoint changes at a rate in
degrees per hour depending on the outdoor
temperature. If there is no outdoor sensor, the
Minimum Recovery Ramp Rate is used.
23
Notes
33-00096—04