Reference To Key Features; Steps To Install The Thermostat; Getting Started - Honeywell Prestige IAQ YTHX9421 Installation Manual

Reference to key features

* Password is date code.

Getting started

Follow these basic steps to install this
thermostat, link it with the equipment interface
module (EIM) and wireless accessories and
set installer options.
1
Installing the Equipment Interface
Module (EIM)
2
Installing the thermostat
3
Powering optional RedLINK accessories
4
Performing initial setup
5
Finding your password (Date Code)
• To add or remove RedLINK accessories
• To make changes to Installer Setup
• To perform an Installer Test
• To view Data Logs
Current display. Button pressed in
signifies current display
Mode control buttons. Use to change
settings for Fan or System Heat/Cool.
Menu. Select options to: set schedules,
view equipment status, change IAQ
settings, access installer options*, etc.
Current schedule. Shows desired
temperature and schedule status.
Indoor conditions. Shows indoor
temperature and humidity.
Current date and time.
Current status. Shows system mode
(heat/cool), outdoor temperature and
humidity (with optional outdoor sensor).
USB port. Use USB device to load
settings and dealer information.
Thermostat (back view)
2
1324
Password
(Date Code)
1324