THX9321 Prestige® 2.0
THX9421 Prestige® IAQ 2.0 with EIM
With wireless accessories
System
Installation
Guide
Control for up to 4 Heat/2 Cool heat pump systems or up to 3 Heat/2 Cool
conventional systems for residential and commercial applications.
NOTE: The TH9321 Prestige is no longer available. There are different versions of
the TH9421 Prestige. The version in this document is no longer available.
Installation guide for:
Quick start guide
• Prestige THX9321/9421 thermostat
• Equipment Interface Module (EIM)
• Portable Comfort Control
• Wireless Outdoor Sensor
• Wireless Indoor Sensor
• RedLINK
™
Internet Gateway
1
Install thermostat .................................................................. page 3
2
Install optional Equipment Interface Module (EIM) ...........3
3
Power optional accessories ........................................................... 4
4
Link thermostat to wireless network .........................................5
5
Link optional accessories to wireless network ......................6
6
Install optional sensors ..................................................................7
7
Setup installer options ....................................................................8
Wiring guides ............................................................................1017
Key features ...............................................................................1825
Device replacement and specifications .........................2627
DISCONNECT POWER BEFORE INSTALLATION. Can cause electrical shock or equipment damage.
MERCURY NOTICE: If this product is replacing a control that contains mercury in a sealed tube, do not place the old control in
the trash. Contact your local waste management authority for instructions regarding recycling and proper disposal.
Must be installed by a trained, experienced technician. Read these instructions carefully. Failure to follow these
instructions can damage the product or cause a hazardous condition.
TM
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