Honeywell TH8321 Product Data page 12

VISIONPRO® 8000 SMART THERMOSTAT
ISU Installer Setup
Number Name
0
207 Cool Stages /
1
Compressor Stages
2
3
1 - 3
202, Heat / Radiant /
207 Backup Heat Stages
None
208 Cool Stage 3
U1
None
210 Heat Stage 3
U1
No Fan
211 Fan Control in Heat
Equip Controls Fan
Tstat Controls Fan
None
212 Backup Heat Type
Electric
Gas/Oil
0 - 2
213 Backup Heat Stages
None
214 Backup Heat Stg 2
U1
33-00096—04
Table 2. Installer Setup (ISU) Table. (Continued)
Settings Default
1 if ISU 101 is
Residential
2 if ISU 101 is
Commercial
Default is 1 stage if
ISU 101 Application is
Residential
Default is 2 stages if
ISU 101 Application is
Commercial
Default varies based
on previous selections
Default varies based
on previous selections
Equip Controls Fan
None
1
Default varies based
on previous selections
Residential,
Commercial
or Both
Both Conventional:
Cool Stage 3 is only available if ISU 101 is
Commercial.
Cool Stage 3 must be wired to the U1 terminals.
Heat Pumps:
Maximum of 2 Compressor Stages for heat pump
systems.
Both Maximum of 3 stages for conventional systems.
Maximum of 3 stages for radiant heat.
Maximum of 3 stages for Primary Heat. (Heating
system, ISU 200 is set to "Other.")
Maximum of 2 Backup Heat Stages for systems with
more than 1 heating equipment type.
NOTE:
Commercial Cool Stage 3 is only available if ISU 101 is
Commercial.
Cool Stage 3 must be wired to the U1 terminals.
U1 are normally open dry contacts when configured
for a stage of Cool. U1 requires power from a system
transformer or a separate transformer.
Both Heat Stage 3 must be wired to the U1 terminals.
U1 is a normally open dry contact when configured
for a stage of Heat. U1 requires power from a system
transformer or a separate transformer.
Both No Fan is only displayed when ISU 201 Heating
Equipment is Other.
Both This ISU is only displayed when ISU 200 Heating
Equipment is Radiant Heat or Other.
When ISU 200 Heating Equipment is Radiant Heat,
the thermostat keeps the Radiant Heat on when it
calls for Backup Heat.
When ISU 200 Heating Equipment is Other, you can
select how the backup operates. See ISU 215.
Both This ISU is only displayed when a backup heat source
is selected at ISU 212 Backup Heat Type.
Maximum of 2 Backup Heat stages.
Both The thermostat supports up to 2 backup heat stages.
When there are 2 backup heat stages, backup heat
stage #2 must be wired to U1.
U1 is a normally open dry contact when configured
for a stage of Heat. U1 requires power from a system
transformer or a separate transformer.
12
Notes
Depending on the application, the text
displayed on the screen may show
the specific heating equipment type.