Honeywell THX9321 Prestige 2.0 Product Data page 24

®
THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE
ISU Installer Setup
Number Name
2010 Heating Equipment
Type
2030 What Terminals are
Wired to Radiant
Heat?
2040 What Terminals are
Wired to Radiant
Heat - Stage 2?
68-0311—02
Table 4. Installer Setup (ISU) Table. (Continued)
Settings
Conventional Forced Air Heat:
Standard Efficiency Gas Forced Air
High Efficiency Gas Forced Air
Oil Forced Air
Electric Forced Air
Hot Water Fan Coil
Other
Heat Pump:
Air to Air Heat Pump
Geothermal Heat Pump
Geothermal Radiant Heat
Radiant Heat:
Hot Water Radiant Heat
Geothermal Radiant Heat
Steam
Other
Other:
Gravity
Other
None
U1
U2
U3
None
U1
U2
U3
®
IAQ WITH EIM
Residential,
Commercial
Default or Both
Default varies Both
based on
previous
selections
Default varies Both
based on
previous
selections
Default varies Both
based on
previous
selections
24
Requires
EIM Notes
No Cycle Rate and Fan Operation automatically
default to the correct settings based on the
equipment type selected.
This ISU is not displayed when ISU 2000
Heating System Type is set to None (Cool
Only).
See "Geothermal Radiant Heat" beginning
on page 100.
No This ISU is only displayed when ISU 2010
Heating Equipment Type is Geothermal
Radiant Heat.
Geothermal Radiant Heat must be wired to
a universal terminal (U1, U2, or U3).
U1, U2 and U3 are normally open dry
contacts when configured for a stage of
Heat. U1, U2 and U3 require power from
the system transformer or a separate
transformer.
U3 is only available on the Equipment
Interface Module (EIM).
No This ISU is only displayed when ISU 2010
Heating Equipment Type is Geothermal
Radiant Heat.
Geothermal Radiant Heat must be wired to
a universal terminal (U1, U2, or U3).
U1, U2 and U3 are normally open dry
contacts when configured for a stage of
Heat. U1, U2 and U3 require power from
the system transformer or a separate
transformer.
U3 is only available on the Equipment
Interface Module (EIM).