Honeywell Home THX9321 Prestige 2.0 Manual
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Honeywell Home THX9321 Prestige 2.0 Manual

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THX9321 Prestige
THX9421 Prestige
HOME
FAN
SYSTEM
Fri, Apr 26, 2019
INDOOR
6:30 pm
72
INTERNET
OUTDOOR
80°/55% Humidity
POWER
45% Humidity
REDLINK
STATUS
cool mode
following schedule
THX9421 Prestige
HOME
Fri, Apr 26, 2019
6:30 pm
OUTDOOR
80°/55% Humidity
STATUS
cool mode
HOME
COOL
OFF
pm
THX9321 Prestige
(Obsolete)

APPLICATION

The Prestige 2.0 and Prestige IAQ Systems feature an
effortless, 7-Day programmable color touchscreen
thermostat that provides control of temperature,
humidification, dehumidification, and ventilation for up to
4 Heat/2 Cool heat pump systems or up to 3 Heat/2 Cool
conventional systems for residential and commercial
applications.

FEATURES

• RedLINK™ Compatible
Increase your content and profit per job by including
RedLINK™ accessories that meet your customers
comfort and convenience needs. RedLINK accessories
include the Wireless Outdoor Sensor, Portable Comfort
Control (PCC), Equipment Interface Module (EIM),
MENU
°
SET TO
72
°
®
IAQ with EIM
FAN
SYSTEM
MENU
INDOOR
72
°
SET TO
72
°
45% Humidity
following schedule
®
2.0
®
2.0 and
®
IAQ with EIM
RedLINK Internet Gateway, Wireless Indoor Sensor,
TrueZONE™ zoning panel with Wireless Adapter, Vent
Boost Remote and Entry/Exit Remote.
• Also Compatible with Equipment Remote Module
(ERM) ERM5220R
• Customizable Service Reminders
Set up to 10 service reminders. Choose from the pre-set
options or customize your own. Reminders based on
date or the outdoor temperature.
• Delta T Alerts and Diagnostics
Alerts give customers a sense of security while allowing
you to service or replace the equipment prior to a loss of
heating or cooling. Based on limits you set at installa-
tion, customers can be alerted when their system is not
operating as expected. The system alert will instruct
customers to contact you for assistance. Requires
Equipment Interface Module.
• Delta T Installer Test
Save time by viewing Delta T while running a system
test to verify proper operation. Requires Equipment
Interface Module.
• Sensor Inputs
EIM - S1, S2, S3, S4
Assignable inputs allow you to setup Indoor and
Outdoor Temperature Sensors, Discharge and Return
Air Sensors or Dry Contact Devices. Dry Contact
Devices can be used to trip pre-set or customized alerts
on the thermostat home screen. Requires Equipment
Interface Module.
• Data Logs
The thermostat stores an Alerts Log, User Interactions
Log and a Performance Log to quickly determine if an
issue is caused by a system error or an accidental user
error. Note: The Performance Log only applies to the
THX9421 thermostat.
• Selectable for Residential and Light Commercial
Applications
One thermostat does it all to meet the needs of Resi-
dential and Light Commercial applications. Simply
select Residential or Commercial during the installer
setup. If Commercial is selected, the thermostat will use
commercial language, meet building codes and offer
365 day holiday scheduling.
• USB Port for Quick Installer Setup
Save time by using a USB stick to upload installer set-
tings, and service reminders in one simple step.
• Selectable Sensors
When paired with a Wireless Indoor Sensor(s) you have
the ability to choose which sensor(s) to use for tem-
perature, humidification and dehumidification. They
can be used in combination for temperature averag-
ing—or individually—to condition humidity levels in
separate spaces.
PRODUCT DATA
68-0311-08

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Summary of Contents for Honeywell Home THX9321 Prestige 2.0

  • Page 1: Application

    ® THX9321 Prestige 2.0 and ® THX9421 Prestige IAQ with EIM PRODUCT DATA RedLINK Internet Gateway, Wireless Indoor Sensor, TrueZONE™ zoning panel with Wireless Adapter, Vent Boost Remote and Entry/Exit Remote. • Also Compatible with Equipment Remote Module (ERM) ERM5220R •...

  • Page 2: Table Of Contents

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM CONTENTS Application ............. Before You Set Up Delta T Diagnostics ..............Setting up Alerts and Diagnostics ................Features ..............Delta T Alerts ........................Specifications ............Delta T Alerts and Utility Saver Switches .............. System Installation ..........

  • Page 3: Specifications

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM SPECIFICATIONS Humidification Setting Range: 10% to 60% RH. Thermostat Description: Dehumidification Setting Range: 40% to 80% RH. Feature Description Humidity Display Range: Powering method • Common wire only 0% to 99%. System types (up •...
  • Page 4 (54) (54) 5-1/2 (140) M34262 Fig. 2. Dimensions of THX9421 Prestige IAQ cover plates in in. (mm). M33330 6-13/16 (173) Fig. 4. Dimensions of THX9321 Prestige 2.0 cover plate in in. (mm). 3-7/8 (99) 1-19/32 4-53/64 (123) (41) 1-7/16 8-7/8...
  • Page 5 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 2. Thermostat Replacement Parts and Accessories. Operating Ambient Operating Relative Shipping Physical Dimensions in in. Product Part Number Temperature Humidity Temperature (mm) Color(s) Thermostat THX9421R5021WW 32 to 120 °F 5% to 90% -20 to 120 °F 4-1/2 x 3-1/2 x 7/8...
  • Page 6 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 2. Thermostat Replacement Parts and Accessories. (Continued) Operating Ambient Operating Relative Shipping Physical Dimensions in in. Product Part Number Temperature Humidity Temperature (mm) Color(s) Wired Wall Mount TR21 45 to 99 °F 5% to 95% -40 to 150 °F...
  • Page 7 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 2. Thermostat Replacement Parts and Accessories. (Continued) Operating Ambient Operating Relative Shipping Physical Dimensions in in. Product Part Number Temperature Humidity Temperature (mm) Color(s) THX9321 50028399-001 7-29/32 x 5-1/2 (201 x White Coverplate 140)

  • Page 8: System Installation

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM SYSTEM INSTALLATION When Installing this Product... 1. Read these instructions carefully. Failure to follow the instructions can damage the product or cause a haz- ardous condition. 2. Check the ratings given in the instructions to make sure the product is suitable for your application.

  • Page 9: Installation Options

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM INSTALLATION OPTIONS ® ® The THX9321 Prestige 2.0 thermostat is wired directly to the equipment. The THX9421 Prestige IAQ thermostat is used with the Equipment Interface Module or with a TrueZONE Wireless Adapter. If using the Equipment Interface Module, see “Installing Equipment Interface Module (if used)”...

  • Page 10: Installing Equipment Interface Module (If Used)

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Installing Equipment Interface 1. Mount the EIM near the HVAC equipment or on the equipment itself. Use screws and anchors as appro- Module (if used) priate for the mounting surface.. 2.

  • Page 11: Selecting Return Air Temperature Sensor Mounting Location

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 4. If a Bypass Humidifier is installed, mount the Discharge Air Temperature Sensor downstream of the ALTERNATE MOUNTING LOCATION FOR DISCHARGE Bypass Humidifier. See Fig. 13–14. SENSOR. WHEN SETTING THE LIMITS, BE SURE TO CONSIDER THE AFFECT THAT THE DEHUMIDIFIER HAS ON DELTA T.

  • Page 12: Installing Discharge And Return Air Temperature Sensors

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Selecting Thermostat Location Install the thermostat about 5 ft. (1.5m) above the floor in an area with good air circulation at average temperature. See Fig. 16. MOUNT DISCHARGE BYPASS SENSOR HERE HUMIDIFIER VENTILATOR...
  • Page 13 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 4. Remove the wallplate from the wall and, if drywall, INSTALLATION WITH TRUEZONE WIRELESS ADAPTER drill two 3/16-in. holes in the wall, as marked. For 1. Wire to C and R terminals of the TrueZONE panel or to firmer material such as plaster, drill two 7/32-in.

  • Page 14: Power Optional Redlink™ Accessories

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Mount Thermostat on Wallplate Portable Comfort Control Align thermostat to wallplate and snap into place. See 1. Install 3 fresh AA alkaline batteries. Fig. 19. MCR32939 Fig. 23. Indoor Air Sensor 1.

  • Page 15: Performing Initial Setup

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM TrueSTEAM (Obsolete) PERFORMING INITIAL SETUP 1. Wire and power TrueSTEAM. 2. Connect the ABCD terminals between TrueSTEAM Initial setup options define the type of system you are and the THM4000 Wireless Adapter. installing: 3.

  • Page 16: Linking Redlink™ Accessories

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 2. Follow the prompts on the thermostat screen until 1. When you see the prompt Do you have RedLINK you reach the Wireless Setup screen. See Fig. 30. accessories to connect? touch Yes or No. a.

  • Page 17: Completing Initial Setup

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Completing Initial Setup 3. Enter password (date code) and touch Done. See “Finding Your Password (Date Code) to Access 5. Finish the setup by selecting the desired options. Installer Options” beginning on page 20 for more Touch Done after you select the last option you want information.

  • Page 18: Locating The Connect Buttons On Redlink Accessories

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 6. Press and quickly release the CONNECT button on Locating the Connect Buttons on each new RedLINK accessory. RedLINK Accessories NOTE: For locations of CONNECT buttons on RedLINK accessories, see “Locating the Wireless Outdoor Sensor Connect Buttons on RedLINK Accessories”...
  • Page 19 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM ERROR MESSAGES: TrueSTEAM E1 29: Incompatible device cannot be connected. 1. Press and quickly release the CONNECT button on E1 34: Low RF signal. Move device to a different location THM4000 Wireless Adapter.

  • Page 20: Finding Your Password (Date Code) To Access Installer Options

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 3. Type the sensor name and press Done. The sensor NOTE: The thermostat can work with up to 6 Vent Boost names are used when selecting which sensor to use remotes.

  • Page 21: Installer Options

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Installer Options Table 3. Installer Options. The following options are available when you access Installer Options. For more information on each, press Help Menu Item Description on the thermostat or see Table 3. Create Setup Press CREATE SETUP to set all system settings one by one.
  • Page 22 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 3. Enter password (Date Code) and touch Done. See 4. Select Create Setup. “Finding Your Password (Date Code) to Access Installer Options” beginning on page 20 for more information. Fig.
  • Page 23 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 1060 Outdoor Air Sensor Both This ISU automatically defaults to Yes when a Wireless Outdoor Sensor is connected.
  • Page 24 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes Conventional Forced Air Heat: 2010 Heating Equipment Default varies Both Cycle Rate and Fan Operation automatically Type Standard Efficiency Gas Forced Air...
  • Page 25 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes None 2050 Geothermal Forced Used for Heating Both This thermostat has the capability of Air System Used for Cooling Only and Cooling...
  • Page 26 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes None 2090 What Terminals are Default varies Commercial Cool Stage 4 is only available if ISU 1010 is Wired to Cool - Stage based on Commercial.
  • Page 27 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 0 - 2 2130 Backup Heat Stages Both This ISU is only displayed when a backup heat source is selected at ISU 2120 Backup Heat Type.
  • Page 28 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes None 2170 What Terminals are Default varies Both THX9321 Thermostat Only: Wired to Backup based on This ISU is only displayed on the THX9321...
  • Page 29 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes None 2220 A-L/A Terminal None Commercial This ISU is only displayed when ISU 1010 Setup Time Of Day Application is Commercial.
  • Page 30 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 2° F to 9° F (in 1° F increments) 3000 Deadband 3°...
  • Page 31 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 3021 Finish With High Both ISU 3010 Temperature Control Options must Heat Stage be set to Advanced to view or adjust Finish With High Heat Stage.
  • Page 32 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes Comfort 3040 Staging Control - Comfort Both ISU 3010 Temperature Control Options must Radiant Heat 1.0°...
  • Page 33 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes Comfort 3060 Staging Control - Comfort Both ISU 3010 Temperature Control Options must Compressor Heat 1.0°...
  • Page 34 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes Comfort 3080, Staging Control - Comfort Both ISU 3010 Temperature Control Options must 3090 Backup Heat 2.0°...
  • Page 35 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 3120 Outdoor Both ISU 3120 Backup Heat Outdoor Temperature Temperature 5°...
  • Page 36 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 1 to 6 CPH 3140 Cool / Compressor Both ISU 3010 Temperature Control Options must Cycles Per Hour - be set to Advanced to view or adjust cycle rate.
  • Page 37 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 1 to 12 CPH 3150 Heat Cycles Per Hour Default varies Both ISU 3010 Temperature Control Options must - Stage 1...
  • Page 38 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 1 to 12 CPH 3150 Heat Cycles Per Hour Default varies Both ISU 3010 Temperature Control Options must - Stage 3...
  • Page 39 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 1 to 12 CPH 3160 Backup Heat Cycles Default varies Both ISU 3010 Temperature Control Options must Per Hour - Stage 2...
  • Page 40 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 0, 100 to 25,000 sec 3220 Heating Derivative 0 sec Commercial The default Heating Derivative is 0 seconds which is appropriate for most applications.
  • Page 41 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes No Limit 4030 Override Duration 3 hours Commercial When the user presses the OVERRIDE button, 1 to 12 Hours the thermostat will maintain the new temperature for at least 1 hour.
  • Page 42 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 4060 Maximum Heat 8° F/hr Commercial Off: The heating system will begin recovery at Recovery Ramp Rate 1°...
  • Page 43 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 4070 Minimum Cool 3° F/hr Commercial Off: The cooling system will begin recovery at Recovery Ramp Rate 1°...
  • Page 44 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 4080 Maximum Cool 6° F/hr Commercial Off: The cooling system will begin recovery at Recovery Ramp Rate 1°...
  • Page 45 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 50° F to 99° F 4100 Minimum Cool 50° F Both The user cannot set the temperature below this Setpoint...
  • Page 46 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes None 4140 Residential: 60° F Both The thermostat maintains this Heat setting Entry / Exit Remote - 40°...
  • Page 47 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes Thermostat (Internal) 5040 Which Sensors will be Sensors are Both Select the sensors to be used for temperature used for Sensor Name (Remote)
  • Page 48 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes Check box on screen for each: 6000 Select the Dry None Both Remote Setback and Dry Contact Alerts...
  • Page 49 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 50° F to 70° F 6040 Remote Setback - 64° F Commercial Remote Setback requires an EIM (Equipment Standby Heat...
  • Page 50 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes Normally Open 6100 Water Leak Alert Dry Normally Open Both Dry Contact Alerts require an EIM (Equipment Contact Setup Normally Closed...
  • Page 51 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes Normally Open when Fan is 6160 Fan Failure Alert Dry Normally Closed Both Dry Contact Alerts require an EIM (Equipment...
  • Page 52 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 7110 Air Filter 1 Both Replacement Reminder Run Time: 10, 20, 30, 45, 60, 90, 120, 150 Note: “1”...
  • Page 53 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 8050 Humidification - Both Requires an optional outdoor sensor. Window Protection Off: The thermostat controls the humidity level to the user's desired humidity setting.
  • Page 54 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes Full drain pan None 8095 Humidity Lockout Both If the selected alert (full drain pan or water Water leak Dry Contact leak) is detected, the thermostat will lock out...
  • Page 55 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes None 9040 What Terminals are Thermostat Both Number of Outputs: Wired to A/C with defaults to the THX9321 Thermostat: U1 and U2 terminals...
  • Page 56 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes Basic 9080 Dehumidification Basic Commercial See “Dehumidification - Commercial” Control beginning on page 108.
  • Page 57 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes Thermostat Controls Fan 9130 Dehumidifier Fan Thermostat Both This ISU is only displayed when ISU 9000 Control Equipment Controls Fan Controls Fan...
  • Page 58 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes None 10000 Ventilation Type None Both None: The thermostat does not control ERV / HRV ventilation.
  • Page 59 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 10% to 100% (in 10% 10120 Ventilation Percent Both The thermostat operates ventilation equipment increments) On Time based on a percentage entered in the installer...
  • Page 60 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 10130 Ventilation High Dew Both Requires a Wireless Outdoor Sensor (sense Point Lockout 65°...
  • Page 61 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes 13000 Heat Delta T Both This ISU is only displayed when the thermostat Diagnostics is setup for a Non-Zoned Forced Air Heating System and the thermostat is setup for 10K...
  • Page 62 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes Minimum Setting 13050 Allow Heat Delta T No Limit Both This ISU only applies to Heating.
  • Page 63 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes Minimum Setting 13110 Allow Backup Heat No Limit Both This ISU only applies to Backup Heat. Delta T Diagnostics (Always) when Outdoor...
  • Page 64 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) Residential, Installer Setup Commercial Requires Number Name Settings Default or Both Notes None 13170 Defrost Cycle Both This ISU is only displayed if ISU 2010 Heating 1 to 60 minutes (in 1 minute Equipment Type is Air to Air Heat Pump.

  • Page 65: Installer Tests

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM INSTALLER TESTS If using multiple wired indoor sensors it cannot show you each individual sensor, only the average temperature reading of the sensors. Use the installer tests to check out the system: •...

  • Page 66: Using The Equipment Test

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Using the Equipment Test Using the Wireless Signal Strength Test 1. Press Equipment Test on the Installer Test screen (see Fig. 62). Turn the equipment on/off as needed 1. On the Installer Test screen (see Fig. 62) press Wire- and then press Next Test to test the remaining equip- less Signal Strength Test.

  • Page 67: Mounting Optional Accessories

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM MOUNTING OPTIONAL MOUNTING C7089U1006 WIRED OUTDOOR TEMPERATURE SENSOR ACCESSORIES Use the following steps to mount the sensor: 1. Remove the sensor from the mounting clip. Mounting Outdoor Sensor 2. Mark the area on the location selected for mounting the sensor mounting clip.
  • Page 68 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Mounting C7189U1005 Wired Indoor 5. Place wallplate over anchors, insert and tighten mounting screws (see Fig. 72). Sensor Use the following steps to mount the sensor: 1. Remove the cover from the remote sensor (see Fig.

  • Page 69: Operation

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM OPERATION HOME. Touch to display Home screen. FAN. Select fan mode. SYSTEM. Select system mode (Heat/Cool). MENU. Touch to display options. Start here to set a program schedule. Current schedule. Touch an arrow to change temperature setting and select a Temporary or Permanent Hold.

  • Page 70: Setting The Time/Date

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Setting the Time/Date 3. Touch Done to save and exit. 1. Touch the current time. The screen displays Set Time/Set Date. Done Fri, Jun 14, 2013 6:30 pm Fig. 80. Fig.

  • Page 71: Preset Energy-Saving Schedules

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Preset Energy-Saving Schedules • Touch Guide Me to create a schedule by answering simple questions. This thermostat uses default Energy Saver settings that • Touch I’ll do it myself to manually create a can reduce your heating/cooling expenses.

  • Page 72: Overriding Schedules: Residential Use

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Overriding Schedules: Residential • To change the hold time, touch the Hold Until arrow buttons. This time can be adjusted up to the maximum time set by the installer. •...

  • Page 73: Setting Vacation Hold: Eesidential Use

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 3. Touch  or  to view the status of all the equipment 3. Touch  or  to select the date you leave, then touch your thermostat is controlling. Depending on how Next for further scheduling details, including times of your thermostat was installed, the Equipment Status day, temperature settings, return date, and return...

  • Page 74: Setting Custom Events: Commercial Use

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 3. Select the item you want to schedule. 3. Select Specific Date or Month/Weekday. • Custom Events lets you set up other days for special schedules. • US and Canadian Holiday options let you select from a list of holidays commonly observed in each country.

  • Page 75: Setting Holiday Override: Commercial Use

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 3. Touch  or  to select the Heat and Cool tempera- 3. Touch the check box next to each holiday for which you want to maintain specific settings, (Touch  or  tures, then touch Next to select return date.

  • Page 76: Remote Setback: Commercial Use

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Touch the  or  buttons to set the temperature or the 4. Touch More Settings if frost or condensation appears Hold Until time. The temperature is maintained until the on the windows.

  • Page 77: Adjusting Dehumidification Settings: Commercial Use

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 3. Move the slider bar to select humidity level. 4. Touch Done to save your settings. Touch Cancel to ignore changes. If your air conditioner is used to control humidity, the thermostat may use the following methods to maintain humidity: •...

  • Page 78: Customizing Screen Color

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Customizing Screen Color You can customize the color of the thermostat screen to match your décor. 1. Touch Menu. 2. Touch Color Themes. Fig. 124. 6. Touch Make Additional Adjustments to make changes to your custom screen color or touch Accept Color Selections if you are satisfied with your custom screen color.

  • Page 79: Setting Preferences

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 8. Touch the arrows on the slider bars to adjust the 1. Touch MENU and select Preferences. color, shading and brightness of the font color. View changes in the Preview area at the top of the screen. MENU Touch Undo to restore the color you originally selected.

  • Page 80: Adjusting Security Settings

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 3. Touch Yes. A countdown timer displays elapsed time 3. Select an option and follow prompts: until the screen is reactivated. • Unlocked: Full access allowed. • Partially locked: Only temperature can be changed.

  • Page 81: Temporary Schedule Changes

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Temporary Schedule Changes 1. Press MENU, then press Preferences, then press Util- ity Schedule Options. Use the thermostat to set temporary schedule changes that impact the regular schedule for the heating/cooling system.

  • Page 82: Advanced Features

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 6. Use the slider to set the warmest heating or coolest cooling temperature allowed during the different price periods. COMPRESSOR SETPOINT AUXILIARY HEAT SETPOINT ROOM TEMPERATURE WAKE M6406A Fig. 143. DEHUMIDIFICATION AWAY MODE Your system can be set to control indoor climate while your home is vacant during the humid season.

  • Page 83: Installer Options

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM If your system is set up to use remote indoor sensors, it may be reading a sensor in another location. THERMOSTAT COOL SETPOINT PROPORTIONAL COOL CONTROL POINT P+I CONTROL POINT INDOOR P+I CONTROL POINT...

  • Page 84: Inputs (S1, S2, S3, S4)

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Output Options Delta T Diagnostics THX9421 with Equipment Interface Module (U1, U2, U3): If discharge and return air sensors are installed, the • Humidification (ISU 8030) thermostat can track system performance over time. It •...

  • Page 85: Setting Up Alerts And Diagnostics

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 3. Delta T can be affected by indoor and outdoor 2. Select the terminals that are wired to the Discharge conditions for heat pumps and cooling systems. and Return Air Sensors (terminals S1, S2, S3, or S4 at Consider the total range of normal performance the EIM).
  • Page 86 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 4. Turn on the Heat and Cool Delta T Diagnostics. 6. When you have completed Installer Setup (see Default is On. “Installer Options” beginning on page 21), you will be asked to finish setting up Diagnostics.
  • Page 87 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Run a Test for Each Stage Set Delta T Limits Follow these steps to run a test for each stage in the HVAC 1. Press Stage 1 to set the limits and run time (see system.

  • Page 88: Delta T Alerts

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Advanced Options for Delta T Diagnostics There are three alerts each for the heating and cooling system. They occur when: To set Advanced Options for Delta T Diagnostics, select Yes •...

  • Page 89: Delta T Alerts And Utility Saver Switches

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Delta T Alerts and Utility Saver You can also press Show Active Alerts to display the active alerts that are currently snoozed by the user. This allows Switches the service technician to dismiss alerts for problems that have been corrected, and prevent unnecessary callbacks.
  • Page 90 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM The Alerts Log can include: • The alert name and description. • System details at the time of the alert (Delta T, thermostat settings, heat/cool stages on, status of IAQ equipment, etc.) •...
  • Page 91 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM The Performance Log records the following information: Using the Data Logs • Minimum and Maximum Delta T • Minimum and Maximum Discharge Temperature TO ACCESS THE DATA LOGS • Minimum and Maximum Return Temperature 1.
  • Page 92 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Using the Performance Logs 4. Select the desired time period at the top of the screen (Hourly, Daily, Weekly or Monthly). Use the Up/Down 1. Follow the steps in “Using the Data Logs” on page 91. arrows to scroll for Delta T, Discharge Temperature, Press Performance Logs.

  • Page 93: Dry Contact Alerts

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 4. Select the log you want to save to USB. When the user presses the alert for more info, the Notification screen is displayed, prompting them to contact their dealer. See Fig. 186 as an example. Fig.

  • Page 94: Set Up The Dry Contact Alerts

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM The thermostat will call for the fan and lockout all other Set Up the Dry Contact Alerts equipment until the dry contact device senses air flow again or the feature is unconfigured at the thermostat. WARNING Custom Alert Equipment Damage Hazard.

  • Page 95: Staging Control

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 5. Select Normally Open or Normally Closed, and press 7. Type the custom alert message into the text box and Next. press Done. The custom alert message appears when the orange alert button is pressed.
  • Page 96 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM needed to keep the indoor temperature within 1 °F (0.5 °C) The Backup Heat Differential restricts backup heat during degree of the setpoint. The thermostat turns on stage 2 the following conditions: when the capacity on stage 1 reaches 90%.
  • Page 97 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM TO CHANGE BACKUP HEAT DIFFERENTIAL (DROOP) The Backup Heat holdoff Timer is available for any system SETTINGS with 2 heating types, the Backup Heat Differential is set to 1. Select Advanced Options or Basic Options to 2 °F (1.0 °C) or higher, and backup heat upstage timer is view/adjust Backup Heat Differential settings.

  • Page 98: Heat Pump And Backup Heat Operation

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Multistage Control Multistage Control keeps the high stage of the equipment running until the desired setpoint is reached. This setting is recommended for Geothermal Heat Pumps to allow the loop to rest.

  • Page 99: Geothermal Radiant Heat

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 8. Heat Pump and Backup Heat Operation. Backup Heat Type Backup Heat Operation Backup Heat Fan Operation Electric forced air Allowed to run with heat pump Thermostat controls fan Gas or oil forced air NOT allowed to run with heat pump Equipment controls fan...

  • Page 100: Indoor Air Quality (Iaq) Control

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 4. Select the Geothermal Radiant Heat Options. For INDOOR AIR QUALITY (IAQ) example: If this zone is Geothermal Radiant Heat only CONTROL – select None. See Fig. 205. Humidification The thermostat reads the indoor humidity level and allows the user to set a humidification setting with or without window protection.
  • Page 101 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM ent sensor for dehumidification. See “Wireless Indoor Sensor” beginning on page 130 for more informa- tion. Fig. 209. Fig. 212. 3. Select the terminals wired to the humidifier. See Fig.
  • Page 102 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM NOTE: Heat includes Heat, Emergency Heat and 7. Set the desired lockout option. See Fig. 217. Auto. If the system is in Auto mode, the ther- mostat will allow humidification if the last call was for heat.

  • Page 103: Dehumidification - Residential

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM NOTE: If humidification and dehumidification are setup Dehumidification - Residential to operate in the same system mode (Heat, Cool, The thermostat reads the indoor humidity level and allows Off) and you are sensing humidity from one loca- the user to set a dehumidification setting.
  • Page 104 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM • Low Speed Fan with Cool Stage 1 Only - when the 3. If you are sensing humidity from two separate loca- thermostat is set to humidify with low speed fan, and tions (one for humidification and another for dehu- humidity is high, and cooling is running at stage 1, midification), you can select which humidity reading...
  • Page 105 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 6. Set the Overcooling Limit. See Fig. 225. Options: another for dehumidification. See “Wireless Indoor • 0 °F to 3 °F (A/C with Low Speed Fan) Sensor” beginning on page 130 for more informa- •...
  • Page 106 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 5. Select the system mode(s) to allow dehumidification. NOTE: ISU 10140 gives the option to lockout venti- See Fig. 230. lation during calls for dehumidification. This helps maintain the desired humidity level. NOTE: Heat includes Heat, Emergency Heat and Auto.
  • Page 107 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 2. Set Fan Control settings. See Fig. 236. NOTE: When set for A/C with Low Speed Fan or A/C • On: Fan is always on. with High Speed Fan, an overcooling limit •...

  • Page 108: Dehumidification - Commercial

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Dehumidification Using the Cooling System Dehumidification using A/C with Low Speed Fan, A/C with High Speed Fan or Hot Gas Bypass, has the following methods of dehumidification control (ISU 9080): Fig.
  • Page 109 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM If set for A/C with Low Speed Fan, configure U1, U2, or U3 3. If you are sensing humidity from two separate loca- as normally open or normally closed (ISU 9050) and wire to tions (one for humidification and another for dehu- the Low Speed Fan terminal on the equipment.
  • Page 110 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 6. Set the Dehumidification Control. See Fig. 245. For another for dehumidification. See “Wireless Indoor more information about these options, see “Dehu- Sensor” beginning on page 130 for more informa- midification Using the Cooling System”...
  • Page 111 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 5. Select the system mode(s) to allow dehumidification. NOTE: ISU 10140 gives the option to lockout venti- See Fig. 250. lation on calls for dehumidification. This helps maintain the desired humidity level. NOTE: Heat includes Heat, Emergency Heat and Auto.

  • Page 112: Ventilation

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Ventilation Fan Control (ISU 10060) Press MENU • Thermostat Controls Fan The thermostat turns on the ventilator and the fan when ventilation is needed. • Equipment Controls Fan Scroll to select DEHUMIDIFICATION The thermostat turns on the ventilator when ventilation is needed.
  • Page 113 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Refer to the information below if you need assistance 3. Select the Ventilation Control Method. See “Ventila- setting the High Dewpoint Lockout. tion Control Methods (ISU 10050)” on page 112 for •...
  • Page 114 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 6. If ASHRAE was selected for ISU 10050, enter the conditions are favorable. If ASHRAE cannot be Equipment Ventilation Rate (CFM). Be sure this set- met when outdoor conditions are favorable, the ting corresponds with the actual ventilator speed.
  • Page 115 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 9. Select the Outdoor Condition Lockouts. See “Ventila- tion — Outdoor Condition Lockouts (ISU 10130)” on page 112 for more information. When ISU 10125 Ventilation Priority is set to Lockouts are Priority, or ISU 10050 Ventilation Control Methods is set to Percent On Time, the thermostat will indicate whether this meets or may not meet the ASHRAE 62.2...

  • Page 116: Iaq Reminders

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 4. Press MORE SETTINGS to change maintenance NOTE: Air Filter, Humidifier Pad, Dehumidifier Filter, and reminders or set outdoor lockouts (if set to Yes, venti- Ventilator Filter are displayed under Preferences lation will not run when outdoor conditions exceed even if they have not been set up.

  • Page 117: Customizable Reminders

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM CUSTOMIZABLE REMINDERS 3. Press Outdoor Temperature and press Next. The thermostat can be set to alert the user when it is time for system maintenance or warranty renewal. You can set up to 10 total Custom Reminders on the thermostat and save them to a USB drive for easy download to multiple thermostats.
  • Page 118 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 6. The preview of the Fall Service Reminder shows you 3. Type the name of the reminder, and press Done. what you’ve selected. Press Done to accept the reminder, or press Back to change it. Fig.

  • Page 119: Usb Port

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 6. Select how often you want the reminder to appear and press Next. Fig. 280. Fig. 277. USB PORT 7. The preview of the custom reminder shows you what you’ve selected.

  • Page 120: Loading Dealer Information

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 3. Follow the prompts on the screen for the item you 1. In a web browser on your computer, go to selected. https://forwardthinking.honeywellhome.com/ • To add information from the USB device to the thermostat_setup/ thermostat, select Load into Thermostat.

  • Page 121: Overriding Schedules: Commercial Use

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Overriding Schedules: Commercial 2. Select Holiday/Event Scheduler. Holiday Event Scheduler Touch or  to adjust the temperature. It will be maintained until the hold time you set. Fig. 287. 3.

  • Page 122: Setting Holiday Schedule: Commercial Use

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 2. Select Create a new event. 1. Select US Holidays or Canadian Holidays from the Holiday/Event Scheduler menu. 2. Select Add/Edit Holidays. A list of national holidays is displayed. Create a new event Fig.

  • Page 123: Setting Holiday Override: Commercial Use

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Setting Holiday Override: NOTE: The cool temperature can only be set higher than the unoccupied program setting and the heat Commercial Use temperature can only be set lower than the unoc- cupied program setting.

  • Page 124: Custom Names

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Fig. 301. Fig. 304. Remote Setback The thermostat allows you to do REMOTE SETBACK when set up for commercial use. This feature requires an occupancy sensor connected to the S1, S2, S3, or S4 terminals at the EIM.
  • Page 125 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM 2. Select the terminals wired to the Remote Setback Dry 4. Select a Remote Setback Time Delay. The Remote Contact device (occupancy sensor) and press Next. Setback Time Delay forces the thermostat to wait before it switches from occupied settings to the standby settings.

  • Page 126: Economizer And Time Of Day (Tod) Operation

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Economizer and Time of Day (TOD) Time of Day (TOD) Operation The thermostat can be set up for a Time of Day output in the installer setup. This output is commonly used to control lighting panels, turning them on for occupied periods and Economizer off for unoccupied periods.

  • Page 127: Battery Replacement

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Battery Replacement Wireless Indoor Sensor Wireless Outdoor Sensor M32988 MCR32937 M32990 Replace batteries in your outdoor sensor when a warning appears on the thermostat screen, about two months MCR32933 before batteries are depleted.

  • Page 128: Optional Accessories

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM OPTIONAL ACCESSORIES PORTABLE COMFORT CONTROL If you have only one thermostat, you move this remote control from room to room (like a portable thermostat), to make sure the temperature is comfortable in the room you’re using. If you have multiple thermostats, you can view and adjust the temperature in each room from your armchair.

  • Page 129: Portable Comfort Control

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM PORTABLE COMFORT CONTROL The Portable Comfort Control communicates wirelessly with the thermostat, and can control up to 16 thermostats, though each thermostat can only be connected to 1 Portable Comfort Control. Fig.

  • Page 130: Remote Indoor Sensors

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM REMOTE INDOOR SENSORS For installation, see “Mounting C7189R1004 Wireless Indoor Sensor” on page 67, and “Mounting C7189U1005 Wired Indoor Sensor” on page 68. For wiring, see “Wiring guide — Wired Indoor Sensors” on page 154. Indoor Sensor Operation Temperature Control The thermostat can be set to respond to its internal...

  • Page 131: Temperature Display

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Temperature Display The temperature reading displayed on the home screen is from the sensor or sensors that are being used for temperature control. In Fig. 318, the temperature reading is the average of the thermostat internal sensor and the MAIN LEVEL remote sensor.
  • Page 132 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM If you are sensing Humidity from two separate locations (one for humidification and another for dehumidification), you can select which humidity reading to display on the home screen. In Fig. 320, the humidity reading is from the Main Level Remote Sensor based on the setting in ISU.

  • Page 133: Backup Control

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Calibration - Indoor Sensor If the Thermostat is NOT Part of the Temperature Average The C7189U1005 Wall Mount Temperature Sensor is calibrated at the factory and cannot be recalibrated in the 1.

  • Page 134: Replacing An Equipment Interface Module

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM REPLACING AN EQUIPMENT At the Portable Comfort Control 1. Press and hold the blank space (or arrow) in the lower INTERFACE MODULE right hand corner of the screen until the display changes (hold for about 4 seconds).
  • Page 135 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 14. THX9321 Terminal Designation Descriptions. Conventional System Heat Pump Terminal Description Terminal Description Common wire from secondary side of cooling Common wire from secondary side of cooling transformer (if 2 transformers). transformer.
  • Page 136 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Table 15. Wiring Diagrams by System Type. Wallplate Wiring Diagram System Type Reference Standard Heat/Cool Heat Pump with Auxiliary Heat Geothermal radiant heat Heat pump system with one transformer 2-heat / 2-cool conventional system with one transformer Heat pump system with two...

  • Page 137: Eim Wiring Diagrams

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM EIM Wiring Diagrams Typical wiring of a conventional system with up to 3-stage heat and 2-stage cool with one transformer. FURNACE TRANSFORMER TO THERMOSTAT HEAT STAGE 1 CONV POWER HEAT STAGE 2 HEAT COOL...
  • Page 138 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Typical wiring of a heat pump system with up to four-stage heat and two-stage cool with one transformer. TO THERMOSTAT CHANGEOVER VALVE HEAT PUMP BACKUP HEAT POWER STAGE 1 AUX1 HEAT AUX1...
  • Page 139 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Typical wiring for geothermal radiant heat, geothermal forced-air, and backup heat with one transformer. TO THERMOSTAT CHANGEOVER VALVE HEAT PUMP BACKUP HEAT POWER STAGE 1 AUX1 HEAT AUX1 AUX2 BACKUP HEAT COOL AUX2...

  • Page 140: Thx9321 Thermostat Wiring Diagrams

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM THX9321 Thermostat Wiring Diagrams Typical wiring of a 3-heat / 2-cool heat pump system with Typical wiring of a 3-heat / 2-cool heat pump system with one transformer. two transformers. Transformer Air Handler Transformer...

  • Page 141: Thx9321 Thermostat Wiring Diagrams Using Iaq Relays To Control Heating Or Cooling

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM THX9321 Thermostat Wiring Diagrams Using IAQ Relays to Control Heating or Cooling The THX9321 Thermostat and the EIM have outputs that can be configured for the following stages of heating and cooling, based on the terminals available.
  • Page 142 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM ZONE VALVE BOILER THERMOSTAT/EIM TO THERMOSTAT TRANSFORMER HEAT PUMP HEAT PUMP W W2 W3 Y Y2 G A AUX1 THERMOSTAT/EIM AUX2 RELAY OIL FURNACE R IS JUMPERED TO RH. THE BOILER CONTROLS THE CIRCULATOR PUMP IN THIS SYSTEM.
  • Page 143 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM THERMOSTAT/EIM TO THERMOSTAT FURNACE HEAT PUMP HEAT PUMP AUX1 AUX2 PUMP RADIANT HEAT ZONE MODULE VALVE TRANSFORMER M34525 Fig. 337. Geothermal radiant heat with geothermal forced air and backup heat using separate transformer for the radiant heat.
  • Page 144 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM THERMOSTAT/EIM THERMOSTAT/EIM TO THERMOSTAT TO THERMOSTAT CONV CONV FURNACE FURNACE RELAY BOILER THE BOILER IS CONTROLLING THE CIRCULATOR PUMP CONFIGURE THE THERMOSTAT TO ENERGIZE THE FAN IN THIS DIAGRAM. WITH A CALL FOR HEAT.
  • Page 145 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM THERMOSTAT/EIM TO THERMOSTAT CONV ZONE 1 RELAY ZONE VALVE BOILER TRANSFORMER HZ311, HZ322, OR HZ432 ZONE PANELS COULD BE USED TO CONTROL A FORCED AIR FURNACE ZONED WITH DAMPERS. THE BOILER IS CONTROLLING THE CIRCULATOR PUMP IN THIS DIAGRAM.
  • Page 146 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM THERMOSTAT/EIM THERMOSTAT/EIM TO THERMOSTAT TO THERMOSTAT CONV CONV ZONE 1 RELAY FURNACE RELAY BOILER ZONE 1 HOT WATER RELAY PANEL HZ311, HZ322, OR HZ432 ZONE PANELS COULD BE USED TO CONFIGURE THE THERMOSTAT TO ENERGIZE THE FAN CONTROL A FORCED AIR FURNACE ZONED WITH DAMPERS.
  • Page 147 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM THERMOSTAT/EIM TO THERMOSTAT AIR HANDLER HEAT PUMP HEAT PUMP AUX1 AUX2 M31487 Fig. 343. Wood stove with heat pump and backup electric strips. (For applications in which the thermostat only needs to run the blower fan when stove is hot).

  • Page 148: Wiring Iaq Equipment Or A Heat/Cool Stage To The U Terminals

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Wiring IAQ Equipment or a Heat/Cool Stage to the U Terminals To Equipment Interface Module “U” terminals can be used for humidification, dehumidification or ventilation. NON-POWERED HUMIDFIER POWERED HUMIDIFIER FIELD INSTALLED JUMPER BETWEEN R AND U1...
  • Page 149 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM HEAT STAGE 3, COOL STAGE 3, COOL STAGE 4 OR GEOTHERMAL RADIANT HEAT TRANSFORMER Fig. 350. Connecting a stage of heating or cooling to a relay (U1, U2, U3). 1U1, U2, and U3 are normally open dry contacts when set up for a stage of heating or cooling.

  • Page 150: Economizer Module Wiring Diagrams

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Economizer Module Wiring Diagrams Typical wiring of a W7220 Economizer Module for a heat pump system, using a Prestige THX9321 thermostat or Equipment Interface Module. Rooftop Unit AUX AUX 2 W7220 Economizer Module (See wiring guidelines provided with the product) AUX2-I...
  • Page 151 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Typical wiring of a W7213/W7214 Economizer Module for a heat pump system, using a Prestige THX9321 thermostat or Equipment Interface Module. Rooftop Unit AUX AUX 2 W7213/W7214 Economizer Module (See wiring guidelines provided with the product) O OR B 2 &...
  • Page 152 ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Typical wiring of a W7220 Jade Economizer Module to the Prestige THX9421 thermostat and Equipment Interface Module, configured for economizer control with custom alert. FURNACE, AIR-HANDLER, OR RTU W7220 JADE ECONOMIZER AUX2-1 RELAY...

  • Page 153: Wiring C7089U1006 Outdoor Sensor

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Wiring C7089U1006 Outdoor Wiring must comply with applicable codes, ordinances and regulations: Sensor 1. Wire C7089U1006 Outdoor Sensor to S1, S2, S3, or S4 terminals on the EIM. If leadwire provided is not long enough (60 in.), run a cable to a hole at CAUTION C7089U1006 location.

  • Page 154: Wiring Guide - Wired Indoor Sensors

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Wiring guide — Wired Indoor Sensors Use the S1, S2, S3, or S4 terminals for wired sensors. Wiring 2 TR21 sensors (20k ohm) and 1 TR21-A sensor CAUTION (10k ohm) for temperature averaging network. Select 20K in the Installer Setup (ISU 5030) when using 2 TR21 Electrical Interference (Noise) Hazard.

  • Page 155: Zoning

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM ZONING The following diagrams show the wiring for zoning with different IAQ equipment. FURNACE W1/E DS/B TRANSFORMER C7735A1000 DATS DATS DATS THM4000R POWER WIRELESS SETUP CONNECTED CONNECT THM4000R1000 PRESTIGE THERMOSTATS CAN BE POWERED BY ANY TRANSFORMER. IN THIS EXAMPLE THEY ARE POWERED BY THE SAME TRANSFORMER THAT POWERS THE HZ432.

  • Page 156: Zoning And Humidification

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Zoning and Humidification CONV 24 V FURNACE 24 V W1/E DS/B C7735A1000 DATS DATS DATS A DEDICATED TRANSFORMER SHOULD POWER THE HZ432. IF A DIFFERENT TRANSFORMER IS USED TO POWER THE EIM, THE JUMPER FROM R TO RH NEEDS TO BE REMOVED AND THE RH AND RC FROM EIM GETS WIRED TO R ON THE ZONE THAT THE EIM IS WIRED TO.

  • Page 157: Zoning And Ventilation

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM Zoning and Ventilation TrueZONE PANEL FURNACE PRESTIGE W1/E IAQ EIM ERV/HRV DS/BK INTERLOCK B AUX W SELECT THE TERMINALS WIRED TO THE VENTILATOR AT ISU 10020 (U1, U2, U3). TO VENTILATE IN ALL ZONES, SET ISU 10060 VENTILATION FAN CONTROL TO EQUIPMENT CONTROLS FAN.

  • Page 158: Faqs

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM FAQS Q: How does the Prestige or Prestige IAQ thermostat control a humidifier in zoned systems? A: If ISU 8070 Humidification Control is set to Humidify on Demand: Thermostat Controls Fan, then the zone panel will close the dampers for the other zones with a call for humidification.

  • Page 159: Troubleshooting

    ® ® THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE IAQ WITH EIM TROUBLESHOOTING Table 17. Troubleshooting. Symptom Action Screen is blank • Check circuit breaker and reset if necessary. • Make sure power switch at heating & cooling system is on. •...
  • Page 160 68-0311—08 M.S. Rev. 08-19 | Printed in United States This product is manufactured by Resideo Technologies, Inc., Golden Valley, MN, 1-800-468-1502 ©2019 Resideo Technologies, Inc. The Honeywell Home trademark is used under license from Honeywell International Inc. All rights reserved.

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