Programmed Recovery; Finish With High Heat/Cool Stage - Honeywell Home T10 Pro RedLINK Manual

Backup Heat Upstage Timer options are Off, 30 minutes to
16 hours. Default is Off.
The upstage timer allows* the aux heat to run when the
highest heat pump stage has run for longer than the timer
setting during a steady state condition. Steady state
means the thermostat is cycling to maintain setpoint.
Manually raising the setpoint or a scheduled setpoint
change will not trigger the upstage timer. In those
conditions the thermostat will not use backup heat unless
a different condition triggers the thermostat to run the
backup heat (Droop, balance point, or manually switching
the thermostat to em heat mode).
*Droop and upstage timer are designed to restrict the
auxiliary heat for customers who are energy conscious.
The aux heat does not necessarilly run after the timer has
expired even in a steady state condition. Once the timer
expires in steady state the thermostat calculates whether
or not to run the aux heat based on the load capacity of
the highest heat pump stage.
If the heat pump struggles to maintain setpoint, we
would suggest one of the following steps:
1. Verify the heat pump is operating as expected.
2. Set a balance point. If a balance point is already
used but the heatpump cannot handle the load even
when operating correctly, the installer may need to
raise this setting.
3. For heat pump with electric backup heat, set the
droop to "Comfort", this uses the backup heat more
aggressively."

PROGRAMMED RECOVERY

If the primary heat is making progress as expected,
backup heat will not be used to reach the setpoint of the
next program period. Backup heat is always restricted
during a programmed recovery when the Adaptive
Intelligent Recovery feature is used. See note below.
T10 PRO SMART THERMOSTAT WITH REDLINK
NOTE: During a programmed recovery (or when the tem-
perature setpoint is changed by the user), the
thermostat waits to turn on the backup heat
depending on system performance, load condi-
tions and how many degrees the temperature set-
point is changed. Backup heat will be used ONLY
when the temperature is not rising quickly
enough to reach the setpoint in a reasonable
time. Upstage timer for heat pump with aux heat
applications is only used in steady state (cycling
to maintain setpoint). The thermostat will not run
the aux heat during a programmed recovery
unless one of the following conditions occurs:
1. Droop is set for comfort and thermostat calculates
that the heatpump cannot effectively handle the
load conditions.
2. Droop is set to 2 °F to 15 °F and indoor temperature
drops while the highest stage of heatpump is run-
ning.
3. Outdoor temperature drops below the balance point
setting (if used).
4. Thermostat is manually switched to em heat mode.
Finish with high Heat stage and/or Finish with high cool
stage
These settings allow the installer to keep the high stage of
the equipment running until the desired setpoint is
reached. This setting is recommended for Geothermal
Heat Pumps to allow the loop to rest.
When set to no (default), the thermostat cycles the stages
based on load conditions and the cycle rate setting for
these stages.
"Finish with High cool Stage" is ISU 3020 "Finish with
High stage Stage," is ISU 3021. Set to Yes to turn on these
features.
Default is No. See ISU settings on page 19.
39 33-00462—01