THX9321 & THX9421 Product Data

ManualsBrandsHoneywell ManualsThermostatsRedesigned Prestige IAQ Kit, 4H/2C

Table Of Contents

Application
Features
Contents
Specifications
System Installation
- When Installing this Product...
- Finding Your Password (Date Code)
Installation Options
- Guidelines for Installing RedLINK Devices
- Installing Equipment Interface Module (if used)
- Wiring 24 Vac Common
- Selecting Discharge and Return Air Temperature Sensor Mounting Locations
- Selecting Return Air Temperature Sensor Mounting Location
- Installing Discharge and Return Air Temperature Sensors
- Selecting Thermostat Location
- Installing Wallplate
Power Optional REDLINK™ Accessories
Performing Initial Setup
- Linking Thermostat to Equipment Interface Module (if used)
- Linking RedLINK™ Accessories
- Completing Initial Setup
- Adding RedLINK Accessories to the Thermostat
- Locating the Connect Buttons on RedLINK Accessories
- Finding Your Password (Date Code) to Access Installer Options
- Installer Options
- Making Changes to Installer Setup
Installer Tests
- Accessing Installer Tests
- Using the Equipment Test
- Using the Wireless Signal Strength Test
- Mounting Optional Accessories
Operation
- Setting the time/date
- Setting the fan
- Setting system mode
- Preset Energy-Saving Schedules
- Adjusting program schedules
- Overriding schedules: residential use
- Overriding schedules: commercial use
- Viewing equipment status
- Setting vacation hold: residential use
- Setting holiday/event schedules: commercial use
- Setting custom events: commercial use
- Setting holiday schedule: commercial use
- Setting holiday override: commercial use
- Initiating occupancy mode: commercial use
- Remote setback: commercial use
- Adjusting humidification settings
- Adjusting dehumidification settings: residential use
- Adjusting dehumidification settings: commercial use
- Adjusting ventilation settings
- Customizing screen color
- Setting preferences
- Cleaning the thermostat screen
- Adjusting security settings
- Viewing dealer information
- Advanced Features
- Installer options
- Using the temperature display
- Using the humidity display
Universal Outputs (U1, U2, U3)
Universal Inputs (S1, S2, S3, S4)
Alerts and Diagnostics
- Delta T Diagnostics
- Before You Set Up Delta T Diagnostics
- Setting up Alerts and Diagnostics
- Delta T Alerts
- Delta T Alerts and Utility Saver Switches
- Data Logs
- Dry Contact Alerts
- Set Up the Dry Contact Alerts
- Staging Control
Heat Pump and Backup Heat Operation
- Heat pump with outdoor temperature lockouts
- Geothermal Radiant Heat
Indoor Air Quality (IAQ) Control
- Humidification
- Dehumidification - Residential
- Dehumidification - Commercial
- Ventilation
IAQ Reminders
Customizable Reminders
USB Port
- Loading Dealer Information
- Updating Thermostat Software (Prestige IAQ Only)
Commercial Features
- Overriding schedules: commercial use
- Setting holiday/event schedules: commercial use
- Setting custom events: commercial use
- Setting holiday schedule: commercial use
- Setting holiday override: commercial use
- Initiating occupancy mode: commercial use
- Ramp Rates
- Custom Names
- Remote Setback
- Economizer and Time of Day (TOD) Operation
- Pre-Occupancy Purge
- Battery Replacement
Optional Accessories
Portable Comfort Control
Remote Indoor Sensors
- Indoor Sensor Operation
- Wireless Indoor Sensor
Backup Control
Replacing a Thermostat
Replacing an Equipment Interface Module
Wiring
- EIM Wiring Diagrams
- THX9321 Thermostat Wiring Diagrams
- THX9321 Thermostat Wiring Diagrams Using Universal Relays to Control Heating or Cooling
- Wiring IAQ Equipment or a Heat/Cool Stage to the Universal Terminals
- Economizer Module Wiring Diagrams
- Wiring C7089U1006 Outdoor Sensor
- Wiring guide — Wired Indoor Sensors
Zoning
- Zoning and Humidification
- Zoning and Ventilation
- TrueDRY dehumidifier with Zoning
- Zoning FAQs
Troubleshooting
Regulatory Information

PRODUCT DATA

68-0311-02

THX9321 Prestige

2.0 and

THX9421 Prestige

IAQ

with EIM

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), RedLINK Internet

Gateway, Wireless Indoor Sensor, TrueSTEAM™ humidi-

fier with Wireless Adapter, TrueZONE™ zoning panel with

Wireless Adapter, Vent Boost Remote and Entry/Exit

Remote.

• 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 installation,

customers can be alerted when their system is not operat-

ing 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.

• Universal 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 Residential

and Light Commercial applications. Simply select Residen-

tial 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 settings,

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 tempera-

ture, humidification and dehumidification. They can be

used in combination for temperature averaging—or individ-

ually—to condition humidity levels in separate spaces.

THX9321 Prestige

2.0

THX9421 Prestige

IAQ with EIM

Summary of content (160 pages)

PAGE 1
THX9321 Prestige® 2.0 and THX9421 Prestige® IAQ with EIM PRODUCT DATA • 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 installation, 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.
PAGE 2
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM CONTENTS Application ........................................... Specifications ...................................... Ordering Information ........................... System Installation .............................. 1 3 2 8 Set up Dehumidification With Whole House Dehumidifier 106 Set up Dehumidification Away Mode .................... 108 Control Dehumidification Level ............................. 108 Dehumidification - Commercial ............
PAGE 3
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM SPECIFICATIONS RedLINK Communication: Frequency: 900 Mhz frequency range Re-Sync Time: RedLINK devices re-establish communication within 6 minutes after AC power resumes. Thermostat Description: Feature Powering method Description • Common wire only Temperature Setting Range: Heating: 40 to 90 °F (4.5 to 32 °C). Cooling: 50 to 99 °F (10 to 37 °C).
PAGE 4
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 7-29/32 (201) 3-19/64 (84) 3-1/2 (89) 5-1/2 (140) 7/8 (22) 4-1/2 (115) M33330 Fig. 4. Dimensions of THX9321 Prestige 2.0 cover plate in in. (mm). 3-5/16 (84) M34630 1-19/32 (41) 4-53/64 (123) Fig. 1. Dimensions of THX9421 Prestige IAQ thermostat in in. (mm). 8-7/8 (225) 6-7/8 (175) 5-33/64 (140) 1-25/32 (46) 1-25/32 (46) 9-11/32 (237) 5 (127) 4-21/64 (110) 2-1/8 (54) 2-1/8 (54) M34262 Fig. 2.
PAGE 5
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 1. Prestige Kits. Kit Part Number Prestige IAQ Kit YTHX9421R5101WW Prestige IAQ Kit YTHX9421R5101BB Prestige IAQ Kit YTHX9421R5101SG Prestige IAQ Kit YTHX9421R5101WG Prestige IAQ Kit YTHX9421R5085WW Prestige IAQ Kit YTHX9421R5085BB Prestige IAQ Kit YTHX9421R5085SG Prestige IAQ Kit YTHX9421R5085WG Prestige 2.0 Kit YTHX9321R5061 Prestige 2.
PAGE 6
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 2. Thermostat Replacement Parts and Accessories. Product Thermostat Part Number Operating Ambient Temperature Operating Relative Humidity Shipping Temperature Physical Dimensions in in. (mm) Color(s) THX9421R5021WW 32 to 120 °F (0 to 48.9 °C) 5% to 90% Non-Condensing -20 to 120 °F (-28.9 to 48.9 °C) 4-1/2 x 3-1/2 x 7/8 (115 x 88 x 22) Front-White, Side-White THX9421R5021BB 32 to 120 °F (0 to 48.
PAGE 7
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 2. Thermostat Replacement Parts and Accessories. (Continued) Product Operating Ambient Temperature Part Number Operating Relative Humidity Shipping Temperature -20 to 120 °F (-28.9 to 48.9 °C) Physical Dimensions in in. (mm) Probe: 3-3/4 x 1/4 (77 x 6.4) Color(s) Discharge or Return C7735A1000* Air Sensor (10K ohm Negative Temperature Coefficient) 0 to 200 °F -(- 17.8 to 93.
PAGE 8
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM SYSTEM INSTALLATION When Installing this Product... 1. 2. 3. 4. Read these instructions carefully. Failure to follow the instructions can damage the product or cause a hazardous condition. Check the ratings given in the instructions to make sure the product is suitable for your application. Installer must be a trained, experienced service technician. After completing installation, use these instructions to verify the product operation.
PAGE 9
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)” beginning on page 10.
PAGE 10
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Installing Equipment Interface Module (if used) 1. 2. If no Equipment Interface Module is used, skip to “Selecting Thermostat Location” beginning on page 12. Mount the EIM near the HVAC equipment or on the equipment itself. Use screws and anchors as appropriate for the mounting surface.. To wire the EIM, strip 1/4” insulation, then insert wires (see Fig. 9). For wiring diagrams, see “Wiring” beginning on page 135.
PAGE 11
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Selecting Return Air Temperature Sensor Mounting Location 1. ALTERNATE MOUNTING LOCATION FOR DISCHARGE SENSOR. WHEN SETTING THE LIMITS, BE SURE TO CONSIDER THE AFFECT THAT THE DEHUMIDIFIER HAS ON DELTA T. Install the Return Air Temperature Sensor on the return duct in a location where the air is mixed well. Mount the Return Air Temperature Sensor downstream of a Bypass Humidifier, Dehumidifier or Ventilator. See Fig. 10–14.
PAGE 12
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 SENSOR HERE BYPASS HUMIDIFIER VENTILATOR OR DEHUMIDIFIER YES NO NO MOUNT RETURN SENSOR HERE MOUNT DOWNSTREAM OF BYPASS HUMIDIFIER, DEHUMIDIFIER OR VENTILATOR 5 FEET [1.5 METERS] NO HEAT EXCHANGER BLOWER M33079A M19925 Fig. 14. Fig. 16.
PAGE 13
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 4. 5. 6. 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. 20. 2. Snap thermostat onto wallplate after wiring is complete. Remove the wallplate from the wall and, if drywall, drill two 3/16-in. holes in the wall, as marked. For firmer material such as plaster, drill two 7/32-in. holes.
PAGE 14
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Mount Thermostat on Wallplate Portable Comfort Control 1. Align thermostat to wallplate and snap into place. See Fig. 19. Install 3 fresh AA alkaline batteries. R C MCR32939 Fig. 23. Indoor Air Sensor 1. Install 2 fresh AAA alkaline batteries. Fig. 21. Mount thermostat (THX9421). POWER OPTIONAL REDLINK™ ACCESSORIES 1. 2. 3. Install batteries or power the optional RedLINK accessories.
PAGE 15
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM PERFORMING INITIAL SETUP TrueSTEAM 1. 2. 3. Wire and power TrueSTEAM. Connect the ABCD terminals between TrueSTEAM and the THM4000 Wireless Adapter.
PAGE 16
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 2. 1. Follow the prompts on the thermostat screen until you reach the Wireless Setup screen. See Fig. 30. When you see the prompt Do you have RedLINK accessories to connect? touch Yes or No. a. If you select No, continue to step 5. b. If you select Yes, you will be prompted to Press Connect on New Accessories. Continue to step 2. NOTE: Accessories must be at least 2 feet away from the thermostat or EIM during the linking process. 2.
PAGE 17
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Completing Initial Setup 5. 3. Finish the setup by selecting the desired options. Touch Done after you select the last option you want to change. See “Installer Options” beginning on page 21 for a full listing of setup options. Enter password (date code) and touch Done. See “Finding Your Password (Date Code) to Access Installer Options” beginning on page 20 for more information. Done Fig. 38. 4. Fig. 35. Scheduling options. 6.
PAGE 18
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 6. Locating the Connect Buttons on RedLINK Accessories Press and quickly release the CONNECT button on each new RedLINK accessory. NOTE: For locations of CONNECT buttons on RedLINK accessories, see “Locating the Connect Buttons on RedLINK Accessories” beginning on page 18. Wireless Outdoor Sensor 1. Press and quickly release the CONNECT button on the Wireless Outdoor Sensor.
PAGE 19
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM TrueSTEAM ERROR MESSAGES: E1 29: Incompatible device cannot be connected. E1 34: Low RF signal. Move device to a different location and try again. E1 38: Make sure the thermostat, EIM, or TrueZONE Wireless Adapter is in Wireless Setup mode, and the Portable Comfort Control is at least 2 feet away (600 mm). 1. Press and quickly release the CONNECT button on THM4000 Wireless Adapter.
PAGE 20
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 3. NOTE: The thermostat can work with up to 6 Vent Boost remotes. Type the sensor name and press Done. The sensor names are used when selecting which sensor to use for temperature, humidification, and dehumidification control. Finding Your Password (Date Code) to Access Installer Options You will need the thermostat password to: • Make changes to the Installer Setup. • Setup Diagnostics. • Perform an Installer Test. • View Data Logs.
PAGE 21
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Installer Options Making Changes to Installer Setup The following options are available when you access Installer Options. For more information on each, press Help on the thermostat or see Table 3. Follow these steps to set system options after initial installation. NOTE: Use a USB device to save set up time. See “USB Port” beginning on page 119 for more information. 1. 2. Touch Menu. Select Installer Options. Installer Op ons Fig. 57. Fig. 56.
PAGE 22
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. ISU Number 1000 Installer Setup Name Language Settings English Default Residential, Commercial Requires or Both EIM English Both No Residential Both No Notes Français Español 1010 Application Residential Commercial 1020 Zone Number 1-16 1 Both No This ISU is only displayed on a thermostat that is controlling a zone panel through the THM4000 Wireless Adapter.
PAGE 23
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 1060 Installer Setup Name Settings Outdoor Air Sensor No Default No Residential, Commercial Requires or Both EIM Both No Yes Notes 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.
PAGE 25
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 2050 Installer Setup Name Settings Default Geothermal Forced None Air System Used for Cooling Only Used for Heating and Cooling Used for Heating and Cooling Residential, Commercial Requires or Both EIM Both No Notes This thermostat has the capability of controlling Geothermal Radiant Heat, Geothermal Forced Air and Backup Heat.
PAGE 26
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 2090 Installer Setup Name Settings What Terminals are None Wired to Cool U1 Stage 4? U2 U3 Default Default varies based on previous selections Residential, Commercial Requires or Both EIM Commercial No Notes Cool Stage 4 is only available if ISU 1010 is Commercial. Cool Stage 4 must be wired to a universal terminal (U1, U2 or U3).
PAGE 27
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number Installer Setup Name Settings 2130 Backup Heat Stages 2140 What Terminals are None Wired to Backup U1 Heat? U2 0-2 Default Residential, Commercial Requires or Both EIM Notes 1 Both No 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) ISU Number 2170 Installer Setup Name Settings What Terminals are None Wired to Backup U1 Heat - Stage 2? U2 Default Default varies based on previous selections Residential, Commercial Requires or Both EIM Both No Notes THX9321 Thermostat Only: This ISU is only displayed on the THX9321 thermostat when it is wired directly to the equipment (Equipment Interface Module is NOT used).
PAGE 29
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 2210 Installer Setup Name Backup Heat Fan Operation Settings No Fan Equipment Controls Fan Thermostat Controls Fan Default Default varies based on previous selections Residential, Commercial Requires or Both EIM Both No Notes This ISU is only displayed for heat pumps when ISU 2180 Backup Heat Type is Other.
PAGE 30
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3000 Installer Setup Name Changeover Settings Manual Automatic Default Manual: if ISU 1010 is Residential Residential, Commercial Requires or Both EIM Both No Deadband 2° F to 9° F (in 1° F increments) 3° F Manual: The user must select heating or cooling as needed to maintain the desired indoor temperature. Automatic: The user has the option to select Auto for the system setting.
PAGE 31
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3020 Installer Setup Name Finish With High Cool Stage Settings No Default No Residential, Commercial Requires or Both EIM Both No Yes Notes ISU 3010 Temperature Control Options must be set to Advanced to view or adjust Finish With High Cool Stage. This ISU is only displayed when the thermostat is set for 2 or more cool stages.
PAGE 32
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3030 Installer Setup Name Staging Control Cool Differential Stage 4 Settings Comfort Default Comfort Residential, Commercial Requires or Both EIM Commercial No 1.0° F to 4.5° F from setpoint (in 0.5° F increments) Notes ISU 3010 Temperature Control Options must be set to Advanced to view or adjust this ISU. This ISU is only displayed when the thermostat is set to 4 cool stages.
PAGE 33
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3050 Installer Setup Name Staging Control Heat Differential Stage 3 Settings Comfort Default Comfort Residential, Commercial Requires or Both EIM Both No 1.0° F to 4.0° F from setpoint (in 0.5° F increments) Note: Depending on the application, the text displayed on the screen may show the specific heating equipment type 3060 Staging Control - Comfort Compressor Heat 1.0° F to 4.
PAGE 34
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3080, 3090 Installer Setup Name Settings Default Staging Control - Comfort Comfort Backup Heat 2.0° F to 15.0° F from setpoint (in Differential Stage 1 0.5° F increments) Residential, Commercial Requires or Both EIM Both No Note: “Stage 1" is not displayed if there is only 1 stage of Backup Heat.
PAGE 35
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3120 Installer Setup Name Outdoor Temperature Lockouts: Settings Off 5° F to 60° F (in 5° F increments) Default Off Residential, Commercial Requires or Both EIM Both No (See Notes) Notes ISU 3120 Compressor Lockout / Balance Point requires an outdoor sensor. Default is 40 F if ISU 2010 Heating Equipment Type is Air to Air Heat Pump and ISU 2180 Backup Type is gas or oil forced air.
PAGE 36
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3130 Installer Setup Name Radiant Heat Cycles Per Hour Stage 2 Settings 1 to 12 CPH Default 3 Residential, Commercial Requires or Both EIM Both No Notes ISU 3010 Temperature Control Options must be set to Advanced to view or adjust cycle rate. This ISU is only displayed when ISU 2010 Heating Equipment Type is Geothermal Radiant Heat.
PAGE 37
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3140 Installer Setup Name Cool Cycles Per Hour - Stage 3 Settings 1 to 6 CPH Default 3 Residential, Commercial Requires or Both EIM Commercial No Notes ISU 3010 Temperature Control Options must be set to Advanced to view or adjust cycle rate. This ISU is only displayed when ISU 1010 Application is set to Commercial and ISU 2070 Cool Stages is set to 3 stages.
PAGE 38
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3150 Installer Setup Name Heat Cycles Per Hour - Stage 1 Settings 1 to 12 CPH Note: Depending on the application, the text displayed on the screen may show the specific heating equipment type. “Stage 1" is not displayed if there is only 1 stage.
PAGE 39
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3150 Installer Setup Name Heat Cycles Per Hour - Stage 3 Settings 1 to 12 CPH Note: Depending on the application, the text displayed on the screen may show the specific heating equipment type.
PAGE 40
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3160 Installer Setup Name Settings Backup Heat Cycles 1 to 12 CPH Per Hour - Stage 2 Default Residential, Commercial Requires or Both EIM Default varies Both based on heating equipment type selected No Notes ISU 3010 Temperature Control Options must be set to Advanced to view or adjust cycle rate.
PAGE 41
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number Installer Setup Name Settings Default Residential, Commercial Requires or Both EIM Notes 3200 Heating Throttling Range 1° F to 30° F 2° F Commercial No The default Heating Throttling Range is 2° F (1.5° C) which is appropriate for most applications. Do not change this setting unless advised to do so by Honeywell technical support.
PAGE 42
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 4020 Installer Setup Name Type of Override Settings Standard Default Standard Residential, Commercial Requires or Both EIM Commercial No Initiate Occupancy Notes Standard: The system maintains temperatures programmed for the occupied and unoccupied time periods. Pressing OVERRIDE will allow the user to make a temporary schedule change.
PAGE 43
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 4050 Installer Setup Name Settings Off Outdoor Temperature used -20° F to 100°F with Minimum Heat Recovery Ramp Rate Default 0° F Residential, Commercial Requires or Both EIM Commercial No Notes Off: The heating system will begin recovery at the time that is scheduled.
PAGE 44
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 4060 Installer Setup Name Outdoor Temperature used with Maximum Heat Recovery Ramp Rate Settings Off Default 40° F Residential, Commercial Requires or Both EIM Commercial No -20° F to 100° F Notes Off: The heating system will begin recovery at the time that is scheduled.
PAGE 45
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 4070 Installer Setup Name Settings Off Outdoor Temperature used -20° F to 100° F with Minimum Cool Recovery Ramp Rate Default 90° F Residential, Commercial Requires or Both EIM Commercial No Notes Off: The cooling system will begin recovery at the time that is scheduled.
PAGE 46
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 4080 Installer Setup Name Outdoor Temperature used with Maximum Cool Recovery Ramp Rate Settings Off Default 70° F Residential, Commercial Requires or Both EIM Commercial No -20° F to 100°F Notes Off: The cooling system will begin recovery at the time that is scheduled.
PAGE 47
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 4120 Installer Setup Name None Residential: Entry / Exit Remote 40° F to 90° F - Home Heat Setpoint Commercial: Entry / Exit Remote - Occupied Heat Setpoint 4130 4140 Commercial: Entry / Exit Remote - Holiday Cool Setpoint 4140 No The thermostat maintains this Heat setting when the user presses Home / Occupied at the Entry / Exit Remote.
PAGE 48
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 5000 Installer Setup Name What Sensors are WIRED to your System? Settings Check box on screen for each: Default None Residential, Commercial Requires or Both EIM Both Yes Indoor Air Temperature Outdoor Air Temperature Return Air Temperature Discharge Air Temperature Notes Wired Sensors requires an EIM (Equipment Interface Module).
PAGE 49
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table.
PAGE 50
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 6040 Installer Setup Name Remote Setback Standby Heat Setpoint Settings 50° F to 70° F Default 64° F Residential, Commercial Requires or Both EIM Commercial Yes Notes Remote Setback requires an EIM (Equipment Interface Module). During occupied periods, the occupancy sensor tells the thermostat to go to STANDBY (setback settings) when no one is in the room.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 6100 Installer Setup Name Settings Normally Open Water Leak Alert Dry Contact Setup Normally Closed Default Residential, Commercial Requires or Both EIM Normally Open Both Yes Notes Dry Contact Alerts require an EIM (Equipment Interface Module).
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 6160 Installer Setup Name Settings Normally Open when Fan is Fan Failure Alert Dry Contact Setup Running Normally Closed when Fan is Running Default Residential, Commercial Requires or Both EIM Both Normally Closed when Fan is Running Yes Notes Dry Contact Alerts require an EIM (Equipment Interface Module).
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 7110 Installer Setup Name Air Filter 1 Replacement Reminder Settings Off Default Residential, Commercial Requires or Both EIM Off Both No Off Both No Off Both No Off Both No Notes Run Time: 10, 20, 30, 45, 60, 90, 120, 150 Note: “1” is not days displayed if there is only 1 filter.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 8050 Installer Setup Name Settings Off Humidification Window Protection On Default Off Residential, Commercial Requires or Both EIM Both No Notes Requires an optional outdoor sensor. Off: The thermostat controls the humidity level to the user's desired humidity setting. Frost or condensation may appear on windows.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 9040 Installer Setup Name Settings What Terminals are None Wired to A/C with U1 Low Speed Fan? U2 What Terminals are Wired to Hot Gas Bypass? U3 Default Residential, Commercial Requires or Both EIM Both Thermostat defaults to the next unused universal terminal (U1, U2, U3).
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 9080 Installer Setup Name Dehumidification Control Settings Basic Default Residential, Commercial Requires or Both EIM Notes Basic Commercial No See “Dehumidification - Commercial” beginning on page 109.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 9130 Installer Setup Name Dehumidifier Fan Control Settings Thermostat Controls Fan Equipment Controls Fan Default Thermostat Controls Fan Residential, Commercial Requires or Both EIM Both No Notes This ISU is only displayed when ISU 9000 Dehumidification Equipment is set to Dehumidifier.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 10000 Installer Setup Name Ventilation Type Settings None Default None Residential, Commercial Requires or Both EIM Both No ERV / HRV Passive (Fan Only) Notes None: The thermostat does not control ventilation. ERV/HRV: The thermostat controls an Energy Recovery Ventilator or Heat Recovery Ventilator for ventilation.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number Installer Setup Name Settings Default Residential, Commercial Requires or Both EIM Notes 10120 Ventilation Percent 10% to 100% (in 10% increments) On Time 30% Both No The thermostat operates ventilation equipment based on a percentage entered in the installer setup (ISU 10120).
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 10130 Installer Setup Name Ventilation High Temperature Lockout Settings Off Default Off Residential, Commercial Requires or Both EIM Both No 80° F to 110° F (in 5° F increments) Notes Requires an outdoor sensor. This ISU is only displayed when ISU 10000 Ventilation Type is set to ERV / HRV or Fresh Air Damper.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number Installer Setup Name Settings Default Residential, Commercial Requires or Both EIM Notes 11050 UV Bulb 2 Replacement Reminder Off, 6, 12, 24 Calendar Months Off Both No 12000 Installer Custom Reminders View / Edit Custom Reminders None Both No See “Customizable Reminders” beginning on page 116.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 13030 Installer Setup Name Settings No Allow Delta T Diagnostics During Yes Dehumidification Default Yes Residential, Commercial Requires or Both EIM Both Yes Notes This ISU is only displayed when ISU 13015 Set Advanced Diagnostic Options is set to Yes. No: The thermostat does NOT monitor Delta T of the system during a call for dehumidification.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 13130 13130 Installer Setup Name Allow Cool Delta T Diagnostics when Indoor Temperature is [Indoor Temperature Range] Settings Minimum Setting Default Residential, Commercial Requires or Both EIM Yes No Limit (Always) Both No Limit (Always) Both Yes The thermostat monitors Delta T of the system ONLY when the indoor temperature is within a certain range.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 13170 Installer Setup Name Defrost Cycle Settings None Default 10 Residential, Commercial Requires or Both EIM Both Yes 1 to 60 minutes (in 1 minute increments) Notes This ISU is only displayed if ISU 2010 Heating Equipment Type is Air to Air Heat Pump. Press the up/down arrows to set the maximum time duration of a defrost cycle.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM INSTALLER TESTS Accessing Installer Tests 1. Use the installer tests to check out the system: • Equipment Test: Tests the heating, cooling, fan, and IAQ equipment. The test allows you to manually call for each system to ensure the equipment and thermostat operate properly. Any minimum off timers are ignored during the system test.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Using the Equipment Test 1. 2. Using the Wireless Signal Strength Test Press Equipment Test on the Installer Test screen (see Fig. 61). Turn the equipment on/off as needed and then press Next Test to test the remaining equipment. The time out for the Equipment Test mode is 30 minutes (if there is no keypress for 30 minutes, the thermostat will automatically exit the Equipment Test).
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Mounting Optional Accessories MOUNTING C7089U1006 WIRED OUTDOOR TEMPERATURE SENSOR Mounting Outdoor Sensor Use the following steps to mount the sensor: 1. Remove the sensor from the mounting clip. 2. Mark the area on the location selected for mounting the sensor mounting clip. 3. Mount the clip. 4. See “Wiring C7089U1006 Outdoor Sensor” on page 153. Mount the sensor where: • it cannot be tampered with. • there is good air circulation.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Mounting C7189U1005 Wired Indoor Sensor Mounting Entry/Exit Remote or Vent Boost Remote Use the following steps to mount the sensor: 1. Remove the cover from the remote sensor (see Fig. 70). Mounting the remote is optional. 1. 2. Remove the front cover from the remote. Use provided screws and wall anchors to fasten the remote to the wall. Drill 3/16-inch holes for drywall, 7/32inch for plaster. M24056 Fig. 70. Remove the cover. 2. 3. 4. 5.
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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. Indoor conditions. Shows indoor temperature and humidity. Current date and time. Current status.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Setting the time/date 1. 3. Touch the current time. The screen displays Set Time/ Set Date. Touch Done to save and exit. Done Fri, Jun 14, 2013 6:30 pm Fig. 79. Fig. 75. 2. • On: Fan is always on. • Automatic: Fan runs only when the heating or cooling system is on. • Circulate: Fan runs randomly about 35% of the time (residential use only). • Follow Schedule: Fan controlled by program. Touch Set Time or Set Date.
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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. • Touch I’ll do it myself to manually create a program schedule. See below. • Touch View/Edit to view the full schedule and make a quick adjustment. This thermostat uses default Energy Saver settings that can reduce your heating/cooling expenses by as much as 33%. Table 5. Residential Use Default Schedule.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Overriding schedules: residential use 1. • 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. • Touch Override to use a pre-set occupied temperature if a person uses the room during an unoccupied period. The new temperature will be maintained for 1 hour and can be adjusted up to the maximum time set by the installer.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 3. 4. Touch  or  to view the status of all the equipment your thermostat is controlling. Depending on how your thermostat was installed, the Equipment Status screen can report data about the following systems: • Heating and cooling • Fan • Humidification • Dehumidification • Ventilation • Maintenance reminders • Thermostat information. Review your selections on the last display, and touch Done to save your settings.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Setting custom events: commercial use 4. Review the settings and touch Done to save them. Touch Back, then Cancel to ignore the changes. This feature lets you customize temperature settings to be maintained during a specific event. You can set up an event for a specific date or day in a month. The thermostat resumes normal scheduling after the event. 1. Select Custom events from the Holiday/Event Scheduler menu. Done Fig. 102.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 4. 4. Touch  or  to select the Heat and Cool temperatures. Review the settings and touch Done to save them. Touch Back, then Cancel to ignore the changes. Done Fig. 105. 5. Fig. 109. Review the settings and touch Done to save them. Touch Back, then Cancel to ignore the changes.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Depending on how your thermostat was installed, it may delay for up to 30 minutes before switching to REMOTE SETBACK settings. This delay allows the room to stay comfortable if the room is unoccupied for only a short time. Adjusting humidification settings 1. 7. Touch MENU and select Humidification.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Adjusting dehumidification settings: commercial use Se ng: This feature can control a dehumidifier or use your air conditioner to reduce humidity. 1. Touch MENU and select Dehumidification. Automa c MENU More Se ngs Dehumidiﬁca on Fig. 119. Fig. 116. 2. 3. 4. Select Auto. Move slider bar to select humidity level. Touch More Settings to set maintenance reminders and lockouts.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 4. 5. 7. If you select a predefined screen color, check the left side of the screen to preview the color and touch Done to accept that selection. If you select Custom, touch Next and follow the prompts on the screen to select the background color and font color. Touch the arrows on the slider bars to adjust the color, shading and brightness of the background color. View changes in the Preview area at the top of the screen.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 9. Touch Make Additional Adjustments to continue making changes, or touch Accept Color Selections when you are satisfied with the selected colors and then touch HOME. 2.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Adjusting security settings Viewing dealer information You can adjust security options to prevent unauthorized changes to system settings. Check dealer information if you need to contact your installer for maintenance, repairs, or upgrades. 1. 1. 2. Touch MENU and select Security Settings. Touch MENU. Select Dealer Information. MENU MENU Dealer Informa on Security Se ngs Fig. 133. 2. Fig. 136. Select Change Lock Mode. 3.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 1. Press MENU 2. 2. Scroll to select TEMPORARY SCHEDULE 3. Select option, then follow screen prompts Press On, then press Next. Fig. 139. 3. 4. 5. NOTE: See also “Overriding schedules: residential use” beginning on page 75. Select the temperatures you would like to adjust based on the Utility Schedule. Choose to create a cost-saving schedule for the heating system, the cooling system, or both.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Advanced Features P + I CONTROL A conventional mechanical or electronic thermostat does not control temperature precisely at setpoint. Typically there is an offset (droop) in the control point as the system load changes. Many factors contribute to offset including the switch differential, thermal lag, overshoot, cycle rates and system load.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Installer options Using the humidity display Installer Options require a password and should only be changed by a qualified technician. In some circumstances, the humidity displayed on the Home screen may not match humidity near the thermostat. To prevent unintended changes or damage to your equipment, do not change these options yourself. Some systems are set up to use two sensors, one to control humidification, the other for dehumidification.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM UNIVERSAL INPUTS (S1, S2, S3, S4) Before You Set Up Delta T Diagnostics Refer to the information below for tips on installation and setup of Delta T Diagnostics. S1, S2, S3, and S4 are universal inputs that can be setup to work with a sensor or dry contact device in the Installer Setup. Setup options and compatible sensors are listed below. See wiring diagrams on page 96 and page 154. 1. 2.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 7. 8. 9. 3. Delta T Diagnostics is only for non-zoned forced air systems. The thermostat does not provide Heat or Cool Delta T Diagnostics when it is set to control an Economizer module (ISU 2220). The thermostat cannot be setup for Heat Delta T Diagnostics when the thermostat is used with an external fossil fuel kit (ISU 2190). Select the Discharge and Return Air Sensor Type (10K). IMPORTANT 10K sensors must be used for Delta T Diagnostics.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 5. 4. For Air-to-Air Heat Pumps, press the up/down arrows to set the maximum time duration of a defrost cycle. Default is 10 minutes. Delta T is not monitored during a defrost cycle. Check the heat pump documentation for the defrost cycle time. Press Set Up Diagnostics. Fig. 155. 5. Run a Test for Each Stage Fig. 153. 6. Follow these steps to run a test for each stage in the HVAC system.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Set Delta T Limits 1.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM installed and provide an option to the user to turn off diagnostics temporarily while power is interrupted by the utility company. Diagnostics can be turned off for 1-14 days. Delta T Alerts are also displayed for performance related issues such as dirty air filter, blocked registers, loss of refrigerant, dirty a-coil, frozen a-coil, cracked heat exchanger, dirty burners, burners need adjustment, etc.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Alerts Log The Alerts Log stores a history of the most recent 25 alerts and records the date and time of each alert. In the Alerts Log, press any of the alerts for more information. You can also press Show Active Alerts to display the active alerts that are currently snoozed by the user. This allows the service technician to dismiss alerts for problems that have been corrected, and prevent unnecessary callbacks. Fig. 167. Fig. 164.
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THX9321 PRESTIGE® 2.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Using the Data Logs Using the Performance Logs 1. TO ACCESS THE DATA LOGS 1. From the Home screen, press Menu. 2. Scroll down and press Installer Options. 3. Enter the password (date code) and press Done. 4. Press Data Logs. 5. Press the log you want to view. Follow the steps in “Using the Data Logs” on page 94. Press Performance Logs. Fig. 176. 2. Select the desired log to view performance history. Fig. 173.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 4. 4. Select the desired time period at the top of the screen (Hourly, Daily, Weekly or Monthly). Use the Up/Down arrows to scroll for Delta T, Discharge Temperature, Return Temperature, Outdoor Temperature/Humidity and Indoor Temperature/Humidity. Use the Left/Right arrows to scroll to a desired hour, day, week or month. Select the log you want to save to USB. Fig. 182. 5.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM When the dry contact device detects a problem with the system (for example, smoke detection), the thermostat will not call for heating, cooling, fan or IAQ equipment until the dry contact is deactivated or the feature is unconfigured at the thermostat. When the user presses the alert for more info, the Notification screen is displayed, prompting them to contact their dealer. See Fig. 185 as an example.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 1. 2. 3. 6. Wire the dry contact device to S1, S2, S3, or S4 terminals at the EIM. Enter Installer Setup (see “Installer Options” beginning on page 21). Dry Contacts are selected at ISU 6000. Select the appropriate Dry Contact(s) and press Next. If you are creating a custom alert, type the alert name into the text box and press Done. The alert name is what appears on the Home screen when the alert is detected. See Fig. 190.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Cool Differential NORMAL OPERATION When the Backup Heat Differential is set to Comfort, the thermostat uses backup heat as needed to keep the indoor temperature within 1 °F (0.5 °C) of the setpoint. The indoor temperature must rise to the selected differential setting before the thermostat turns on the stage of cooling. For example, if stage 2 is set to 2 °F (1.0 °C), the indoor temperature must be 2 °F (1.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 2. Multistage Control Default is Comfort. Adjust differentials as needed. 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. Select Yes to turn on this feature. Default is No. Fig. 195.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM HEAT PUMP AND BACKUP HEAT OPERATION Heat pump with outdoor temperature lockouts Outdoor temperature lockouts are optional. See Installer Setup options (ISU 3120).
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Fossil Fuel Backup Heat (Backup Heat NOT Allowed to Run with Heat Pump) 4. Select the Geothermal Radiant Heat Options. For example: If this zone is Geothermal Radiant Heat only – select None. See Fig. 202. 5. Select the Reversing Valve. See Fig. 203.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM INDOOR AIR QUALITY (IAQ) CONTROL Humidification The thermostat reads the indoor humidity level and allows the user to set a humidification setting with or without window protection. The thermostat can be set up to control a humidifier in any system mode in the Installer Setup (ISU 8060). A discharge air sensor is required to humidify in the cool mode. Fig. 206.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 2. If optional remote wireless indoor sensors are installed, you can choose which sensor you want to use for humidification control. You can use a different sensor for dehumidification. See “Wireless Indoor Sensor” beginning on page 130 for more information. 5. Select the system mode(s) to allow humidification. See Fig. 212. NOTE: Heat includes Heat, Emergency Heat and Auto.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 7. 15% deadband between the humidification and dehumidification settings. The thermostat will automatically switch between humidification and dehumidification to maintain the desired humidity level. Set the desired lockout option. See Fig. 214.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Dehumidification - Residential 2. The thermostat reads the indoor humidity level and allows the user to set a dehumidification setting. The thermostat controls the humidity level using the cooling system or a whole house dehumidifier. If optional remote wireless indoor sensors are installed, you can choose which sensor you want to use for dehumidification control.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 5. 1. Select whether the U1, U2, or U3 terminals are Normally Open or Normally Closed. See Fig. 220. • Normally Open – contacts are normally open and will close during a call for dehumidification • Normally Closed – contacts are normally closed and will open during a call for dehumidification. Select the Dehumidification Equipment in ISU 9000. See Fig. 222. Fig. 222. 2. Fig. 220. 6. Set the Overcooling Limit. See Fig. 221.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 4. Select the terminals wired to the Whole House Dehumidifier. See Fig. 225. 7. Set the desired lockout option. See Fig. 228. Fig. 228. Fig. 225. 5. NOTE: ISU 10140 gives the option to lockout ventilation during calls for dehumidification. This helps maintain the desired humidity level. Select the system mode(s) to allow dehumidification. See Fig. 226. Dehumidification Away Mode NOTE: Heat includes Heat, Emergency Heat and Auto.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Set up Dehumidification Away Mode 1. Control Dehumidification Level 1. 2. Select Allowed at ISU 9180. See Fig. 231. 3. 4. NOTE: When set for A/C with Low Speed Fan or A/C with High Speed Fan, an overcooling limit can be set from 0 °F to 3 °F (ISU 9070). The thermostat uses the cooling system to reduce humidity by lowering the temperature up to 3° F below the current cool setpoint until the desired humidity level is reached. Fig. 231. 2. 5.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Dehumidification - Commercial High Humidity Comfort Reset (ISU 9100): This option uses the cooling system to lower the temperature up to 5° F below the current cool setpoint until the desired humidity is reached. The high humidity comfort range is from 1° to 5° F. The thermostat reads the indoor humidity level and allows the user to set a dehumidification setting.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 2. If optional remote wireless indoor sensors are installed, you can choose which sensor you want to use for dehumidification control. For example, you can use one sensor for humidification control, and another for dehumidification. See “Wireless Indoor Sensor” beginning on page 130 for more information. Fig. 239. 6. Set the Dehumidification Control. See Fig. 240.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 2. will allow dehumidification if the last call was for heat. Cool includes Cool and Auto. If the system is in Auto mode, the thermostat will allow dehumidification if the last call was for cool. If optional remote wireless indoor sensors are installed, you can choose which sensor you want to use for dehumidification control. For example, you can use one sensor for humidification control, and another for dehumidification.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Dehumidification Away Mode Press MENU Dehumidification Away Mode for a commercial application is identical to Dehumidification Away Mode for a residential application. See “Dehumidification Away Mode” on page 107 and “Set up Dehumidification Away Mode” beginning on page 108. Scroll to select DEHUMIDIFICATION Control Dehumidification Level 1. 2. 3. 4. 5. 6. Press MENU, then scroll to select Dehumidification.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Ventilation Fan Control (ISU 10060) • 70 to 74: Quite uncomfortable • 65 to 69: Somewhat uncomfortable • Thermostat Controls Fan The thermostat turns on the ventilator and the fan when ventilation is needed. • Equipment Controls Fan The thermostat turns on the ventilator when ventilation is needed. The fan is controlled by the equipment.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 4. 7. Select the Ventilation Fan Control. See “Ventilation Fan Control (ISU 10060)” on page 113 for more information. See Fig. 251. NOTE: ISU 10060 is only displayed if the Ventilation Type is ERV / HRV. The thermostat controls the fan if the Ventilation Type is Fresh Air Damper. Fig. 251. 5. If ASHRAE was selected for ISU 10050, select the Number of Bedrooms and Size of House. See Fig. 252. Select a Ventilation Priority (see Fig. 254): c.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 8. or dehumidification. The thermostat will indicate whether this meets or may not meet the ASHRAE 62.2 Standard or the Percent On Time setting. See Fig. 257. If Percent On Time was selected for ISU 10050, select the Ventilation Percent on Time. See Fig. 255. NOTE: ISU 10140 “Lockout Ventilation on Humidification or Dehumidification Calls” is not an option when you select “ASHRAE is Priority” at ISU 10125. Fig. 255. 9.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 4. NOTE: Air Filter, Humidifier Pad, Dehumidifier Filter, and Ventilator Filter are displayed under Preferences even if they have not been set up. Humidifier Pad is not displayed if a steam humidifier has been installed. Press MORE SETTINGS to change maintenance reminders or set outdoor lockouts (if set to Yes, ventilation will not run when outdoor conditions exceed values set by the installer).
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Custom Reminders include: 4. • Service Reminder — Set up for recurring or one time only. • Spring Service Reminder — Provide an alert based on date or outdoor temperature. • Fall Service Reminder — Provide an alert based on date or outdoor temperature. • Your Warranty is Expiring Soon — Set up for recurring or one time only. • New Custom Reminder — Enter new reminders or advertisements — Set up for recurring or one time only.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 7. 4. The Fall Service Reminder will look like this on the Home Screen: Fig. 270. Fig. 267. 5. To create a new custom reminder: 1. 2. Type the reminder message, and press Done. Press the up or down arrows to set the date when the New Custom Reminder should appear, and press Next. Press Add Custom Reminder (see Fig. 261). Press New Custom Reminder and press Next. Fig. 271. 6. Fig. 268. 3.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 7. You can save the following to a memory stick and upload them individually to the thermostat: • Installer Setup • Dealer Information • Holiday / Event Scheduler (commercial) — Holidays — Custom Events • Custom Reminders • Software Update The preview of the custom reminder shows you what you’ve selected. Press Done to accept the reminder, or press Back to change it.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Loading Dealer Information Updating Thermostat Software (Prestige IAQ Only) Prestige thermostats can display the dealer’s contact information and logo on the screen, making it easy for users to contact them for post-sale support and service. After saving the dealer’s contact information and logo to a USB device, the dealer can upload this information to the Prestige thermostat using the USB port. 1. 2. 3. 4. 5. 6. 7.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM COMMERCIAL FEATURES The thermostat can be setup for residential or light commercial applications (ISU 1010).
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Setting custom events: commercial use 4. Review the settings and touch Done to save them. Touch Back, then Cancel to ignore the changes. This feature lets you customize temperature settings to be maintained during a specific event. You can set up an event for a specific date or day in a month. The thermostat resumes normal scheduling after the event. 1. Select Custom events from the Holiday/Event Scheduler menu. Done Fig. 287.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 4. Touch  or  to select the Heat and Cool temperatures. 4. Review the settings and touch Done to save them. Touch Back, then Cancel to ignore the changes. Done Fig. 290. 5. Fig. 294. Review the settings and touch Done to save them. Touch Back, then Cancel to ignore the changes.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM automatically adjust the ramp rate based on outdoor conditions. This allows the thermostat to save energy by starting recovery at the optimum time as outdoor conditions change. NOTE: The thermostat uses an adjustable ramp rate when the thermostat is setup for commercial.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 2. 4. Select the terminals wired to the Remote Setback Dry Contact device (occupancy sensor) and press Next. Select a Remote Setback Time Delay. The Remote Setback Time Delay forces the thermostat to wait before it switches from occupied settings to the standby settings. When set to 0 minutes, the thermostat will switch from occupied settings to the standby settings immediately when the room is unoccupied. Fig. 301. 3.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Economizer and Time of Day (TOD) Operation Time of Day (TOD) 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 off for unoccupied periods. Table 10 explains how the TOD feature works with various thermostat modes.
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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 before batteries are depleted. After new batteries are installed, the outdoor sensor will restore communication with the wireless network within a few seconds.
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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. A Portable Comfort Control can control up to 16 thermostats.
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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. 308. Reading temperature at the Portable Comfort Control. If you have 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.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM REMOTE INDOOR SENSORS For installation, see “Mounting C7189R1004 Wireless Indoor Sensor” on page 70, and “Mounting C7189U1005 Wired Indoor Sensor” on page 71. 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 temperature sensor, or to an optional remote indoor sensor.
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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. 313, the temperature reading is the average of the thermostat internal sensor and the MAIN LEVEL remote sensor. Fig. 313.
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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. 315, the humidity reading is from the Main Level Remote Sensor based on the setting in ISU. Fig. 315.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Calibration - Outdoor Sensor Calibration - Indoor Sensor The C7089U1006 Outdoor Sensor is calibrated at the factory and cannot be recalibrated in the field. The C7189U1005 Wall Mount Temperature Sensor is calibrated at the factory and cannot be recalibrated in the field. Table 11. C7089U1006 Sensor Resistance at Outdoor Temperature. Outdoor Temperature Outdoor Temperature °F °C Ohms of Resistance °F °C Ohms of Resistance -20 -28.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM BACKUP CONTROL 2. 3. This section explains when backup control is used. For example, if batteries in the wireless indoor sensors are depleted. At the Indoor Sensor, RedLINK Internet Gateway, Entry/Exit Remote, Vent-Filter Boost Remote or TrueSTEAM Wireless Adapter If the Thermostat is Part of the Temperature Average 1. 2. 3. The thermostat controls the system using the remaining sensors that are part of the temperature average.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM WIRING See Table 13 for Equipment Interface Module terminal descriptions and Table 14 for thermostat terminal descriptions. Table 13. Equipment Interface Module Terminal Designation Descriptions. Conventional System Terminal Heat Pump Description Terminal Description C Common wire from 24 VAC transformer. C Common wire from 24 VAC transformer. R* Power wire from 24 VAC transformer. R Power wire from 24 VAC transformer.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 14. THX9321 Terminal Designation Descriptions. Conventional System Terminal Heat Pump Description Terminal C Description C Common wire from secondary side of cooling transformer (if 2 transformers). Common wire from secondary side of cooling transformer.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 15. Wiring Diagrams by System Type.
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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.
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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.
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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.
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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 two transformers. Typical wiring of a 3-heat / 2-cool heat pump system with one transformer.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM THX9321 Thermostat Wiring Diagrams Using Universal Relays to Control Heating or Cooling The THX9321 Thermostat and the EIM have universal outputs that can be configured for the following stages of heating and cooling, based on the terminals available.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM ZONE VALVE TH THERMOSTAT/EIM T TO THERMOSTAT T 2 TRANSFORMER 120 VAC BOILER END SWITCH TR 24 VAC 1 R HEAT PUMP C O/B W W2 W3 Y Y2 G A AUX1 THERMOSTAT/EIM AUX2 1 R IS JUMPERED TO RH. 2 THE BOILER CONTROLS THE CIRCULATOR PUMP IN THIS SYSTEM. 2 M31477 L/A HEAT PUMP O Y Y2 G R C RELAY OIL FURNACE 3 T 1 T 1 Fig. 328. 2-Wire Zone Valve with end switch.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM THERMOSTAT/EIM TO THERMOSTAT HEAT PUMP FURNACE HEAT PUMP O/B O O AUX1 W1 W2 Y Y2 Y R Y2 G C AUX2 L/A R 3 4 PUMP C RADIANT HEAT ZONE MODULE VALVE END SWITCH 1 TRANSFORMER C R 24 VAC 120 VAC M34525 Fig. 332. Geothermal radiant heat with geothermal forced air and backup heat using separate transformer for the radiant heat. 1 U1, U2 or U3 terminals must be used for geothermal radiant heat (ISU 2010).
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM THERMOSTAT/EIM THERMOSTAT/EIM TO THERMOSTAT TO THERMOSTAT 1 CONV CONV W W W2 W2 W3 FURNACE L W3 FURNACE RELAY BOILER W W 3 T Y G Y G 1 T L R R 1 C C 2 1 CONFIGURE THE THERMOSTAT TO ENERGIZE THE FAN WITH A CALL FOR HEAT. 2 THE THERMOSTAT WILL ENERGIZE ONLY THE FAN WITH A CALL FOR STAGE 1 HEAT. IF THE WOOD STOVE IS HOT, HEAT COMES FROM THE FAN COIL. IF THE WOOD STOVE IS COLD, ONLY THE FAN RUNS.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM THERMOSTAT/EIM TO THERMOSTAT CONV W W3 L ZONE 1 RELAY ZONE VALVE W 3 TR Y G 1 TH R END SWITCH W2 BOILER T 2 T TRANSFORMER C C R 1 24 VAC 120 VAC 1 HZ311, HZ322, OR HZ432 ZONE PANELS COULD BE USED TO CONTROL A FORCED AIR FURNACE ZONED WITH DAMPERS. 2 THE BOILER IS CONTROLLING THE CIRCULATOR PUMP IN THIS DIAGRAM. M34526 Fig. 335. Hot water radiant heat with backup forced air heat.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM THERMOSTAT/EIM THERMOSTAT/EIM TO THERMOSTAT TO THERMOSTAT CONV CONV W W W2 W2 W3 ZONE 1 W Y G L RELAY W3 FURNACE BOILER W 3 T 1 Y G 1 T L R R 2 C C RH 1 RELAY 3 W ZONE 1 1 HOT WATER RELAY PANEL 2 1 HZ311, HZ322, OR HZ432 ZONE PANELS COULD BE USED TO CONTROL A FORCED AIR FURNACE ZONED WITH DAMPERS. 2 AN AQ2000 SERIES HOT WATER ZONE PANEL OR OTHER RELAY-BASED HOT WATER ZONE 3 PANEL COULD BE USED.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM THERMOSTAT/EIM TO THERMOSTAT AIR HANDLER HEAT PUMP HEAT PUMP O/B O O AUX1 W Y Y2 Y R Y2 G C AUX2 L/A 4 R 4 C 1 2 M31487 Fig. 338. 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). 1 Select Geothermal Radiant Heat at ISU 2010. Connect Fan to U1, U2, or U3 as shown in the wiring diagram.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Wiring IAQ Equipment or a Heat/Cool Stage to the Universal Terminals To Equipment Interface Module “U” terminals can be used for humidification, dehumidification or ventilation. U3 U3 U2 U3 1 U2 U2 U1 POWERED HUMIDIFIER U1 24 VAC RH RC 24 VAC R C 120 VAC 24 VAC Fig. 339. Wiring a powered humidifier. U3 U2 1 U2 POWERED VENTILATOR 24 VAC 120 VAC NON-POWERED VENTILATOR U1 RH RC R 24 VAC C RC 120 VAC 24 VAC Fig. 340.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM U3 U3 U2 HEAT STAGE 3, COOL STAGE 3, COOL STAGE 4 OR GEOTHERMAL RADIANT HEAT U2 U1 1 U1 2 RH RC TRANSFORMER 24 VAC R 24 VAC C 120 VAC Fig. 345. Connecting a stage of heating or cooling to a universal relay (U1, U2, U3). 1 U1, U2, and U3 are normally open dry contacts when set up for a stage of heating or cooling. 2 You must install a field jumper if the stage of heating or cooling is powered by the system transformer.
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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 O/B Y1 Y2 AUX AUX 2 G Y Y2 AUX AUX 2 G 3 W7220 Economizer Module (See wiring guidelines provided with the product) 3 1 AUX2-I OCC E-GND AUX1-O Y2-I Y2-O Y1-I Y1-O C R O/B 2 1 Transformer 120 VAC L/A R 24 VAC Thermostat/EIM C MCR34808 Fig. 346.
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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 O/B Y1 Y2 AUX AUX 2 G Y Y2 AUX AUX 2 G W7213/W7214 Economizer Module (See wiring guidelines provided with the product) O OR B 1 N 3 3 3 4 1 2&5 TR1 TR O/B 120 VAC L/A 1 Transformer 2 R 24 VAC Thermostat/EIM C MCR34809 Fig. 348.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Wiring C7089U1006 Outdoor Sensor Wiring must comply with applicable codes, ordinances and regulations: 1. CAUTION Electrical Interference (Noise) Hazard. Can cause erratic system operation. Keep wiring at least one foot away from large inductive loads such as motors, line starters, lighting ballasts and large power distribution panels. Use shielded cable to reduce interference when rerouting is not possible. 2. 3.
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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 (10k ohm) for temperature averaging network. Select 20K in the Installer Setup (ISU 5030) when using 2 TR21 sensors and 1 TR21-A sensor. CAUTION Electrical Interference (Noise) Hazard. Can cause erratic system operation.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM ZONING THERMOSTAT ZONE 4 DAMPER The following diagrams show the wiring for zoning with different IAQ equipment.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Zoning and Humidification THERMOSTAT ZONE 4 DAMPER 2 3 CONV W W2 W3 5 AFS 24 V 24 V HUM HUM C GT R RT GF EXT FURNACE C EQUIPMENT R W W2 Y Y2 R 1 C SENSORS 1 POWER G ACCESSORIES L M1 M4 M6 R C W1/E W2 W3 Y1 Y2 G O/B L WIRELESS C7735A1000 DATS RH RC W1/E W2 W3 Y1 Y2 G O B DS/BK 4 R C AZ1 AZ2 OT OT DATS DATS A B C D 1 A DEDICATED TRANSFORMER SHOULD POWER THE HZ432.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Zoning and Ventilation TrueZONE PANEL 2 FURNACE C 1 R W EQUIPMENT PRESTIGE IAQ EIM Y G ERV/HRV INTERLOCK B AUX W B G R G R RH RC W1/E W2 W3 Y1 Y2 G O B DS/BK 1 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.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Zoning 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.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM TROUBLESHOOTING Table 17. Troubleshooting. Symptom Screen is blank Action • Check circuit breaker and reset if necessary. • Make sure power switch at heating & cooling system is on. • Make sure furnace door is closed securely. Screen is difficult • To change the screen brightness or color, see backlight options in the Preferences menu (see page 21). to read • At 2 am each day, thermostats change screen colors for an hour, to prevent burn-in.
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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 customer.honeywell.com ® U.S. Registered Trademark © 2013 Honeywell International Inc. 68-0311—02 M.S. Rev.