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THX9321 PRESTIGE
®
2.0 AND THX9421 PRESTIGE
®
IAQ 2.0 WITH EIM
9 68-0311—01
THX9421 Installation
INSTALLATION WITH EQUIPMENT INTERFACE MODULE
(EIM)
1. Wire to C and R terminals of the EIM or to a separate 24
volt transformer (not provided). See Fig. 13.
2. Snap thermostat onto wallplate after wiring is complete.
INSTALLATION WITH TRUEZONE WIRELESS ADAPTER
1. Wire to C and R terminals of the TrueZONE panel or to a
separate 24 volt transformer (not provided). See Fig. 13.
2. Snap thermostat onto wallplate after wiring is complete.
THX9321 Installation
THERMOSTAT WIRED DIRECTLY TO THE HVAC
EQUIPMENT OR ZONE PANEL
1. Refer to “THX9321 Thermostat Wiring Diagrams” begin-
ning on page 107.
2. Snap thermostat onto wallplate after wiring is complete.
INSTALLATION WITH EQUIPMENT INTERFACE MODULE
(EIM)
1. Wire to C and R terminals of the EIM or to a separate 24
volt transformer (not provided). See Fig. 13.
2. Snap thermostat onto wallplate after wiring is complete.
NOTE: Note: When the THX9321 thermostat is used with
an EIM, the relays in the thermostat do not func-
tion.
INSTALLATION WITH TRUEZONE WIRELESS ADAPTER
1. Wire to C and R terminals of the TrueZONE panel or to a
separate 24 volt transformer (not provided). See Fig. 13.
2. Snap thermostat onto wallplate after wiring is complete.
NOTE: When the THX9321 thermostat is used with a
TrueZONE Wireless Adapter, the relays in the
thermostat do not function.
Fig. 13. Inserting wires in thermostat terminal block.
INSTALL OPTIONAL
ACCESSORIES
Power Optional RedLINK™
Accessories
1. If no wireless accessories are used, skip to “Link thermo-
stat to EIM or TrueZONE® Wireless Adapter” beginning
on page 10.
2. If no wireless accessories are used and there is no EIM
or TrueZONE Wireless Adapter, skip to “Installer Setup”
beginning on page 14.
3. Install batteries in the wireless accessories.
Outdoor air sensor
1. Install 2 fresh AA lithium batteries.
Fig. 14.
Portable Comfort Control
1. Install 3 fresh AA alkaline batteries.
Fig. 15.
Indoor air sensor
1. Install 2 fresh AAA alkaline batteries.
Fig. 16.
MCR32387
MCR32937
MCR32939
MCR32938