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THX9321 PRESTIGE
®
2.0 AND THX9421 PRESTIGE
®
IAQ 2.0 WITH EIM
68-0311—01 30
4050 Outdoor Temperature
used with Minimum
Heat Recovery Ramp
Rate
Off
-20° F to 100°F
0° F Commercial No 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.
4060 Maximum Heat
Recovery Ramp Rate
Off
1° F/hr to 20° F/hr
8° F/hr Commercial No Off: The heating system will begin recovery at the
time that is scheduled.
When a Maximum Recovery Ramp Rate is set, the
thermostat will begin recovery early to ensure the
temperature is reached at the scheduled time.
Set a Maximum Recovery Ramp Rate based on the
rate that the heating system can recover at for a
mild day in your region. Default setting is 8° F /
hour.
Set an Outdoor Temperature that is representative
of a mild day in your region to be associated with
the Maximum 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.
4060 Outdoor Temperature
used with Maximum
Heat Recovery Ramp
Rate
Off
-20° F to 100° F
40° F Commercial No Off: The heating system will begin recovery at the
time that is scheduled.
When a Maximum Recovery Ramp Rate is set, the
thermostat will begin recovery early to ensure the
temperature is reached at the scheduled time.
Set a Maximum Recovery Ramp Rate based on the
rate that the heating system can recover at for a
mild day in your region. Default setting is 8° F /
hour.
Set an Outdoor Temperature that is representative
of a mild day in your region to be associated with
the Maximum 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.
Table 2. Installer Setup (ISU) Table. (Continued)
ISU
Number Installer Setup Name Settings Default
Residential,
Commercial
or Both
Requires
EIM Notes