Page 2 - ORDERING INFORMATION; CONTENTS; Installing Equipment Interface Module (if used)
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 2 ORDERING INFORMATION When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the TRADELINE® Catalog or price sheets for complete ordering number. If you have additional que...
Page 3 - SPECIFICATIONS
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 3 68-0311—02 SPECIFICATIONS Thermostat Description: Electrical Ratings for: Equipment Interface Module and the THX9321 Prestige 2.0 Thermostat NOTE: To find what terminals are available on the Equip- ment Interface Module and the Prestige Th...
Page 4 - Fig. 1. Dimensions of THX9421 Prestige IAQ thermostat in
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 4 Fig. 1. Dimensions of THX9421 Prestige IAQ thermostat in in. (mm). Fig. 2. Dimensions of THX9421 Prestige IAQ cover plates in in. (mm). Fig. 3. Dimensions of THX9321 Prestige ® 2.0 thermostat in in. (mm). Fig. 4. Dimensions of T...
Page 5 - Kit
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 5 68-0311—02 Table 1. Prestige Kits. Kit Part Number Included in Kit Part Number Description Prestige IAQ Kit YTHX9421R5101WW THX9421R5021WW Thermostat - White Front, White Side THM5421R1021 Equipment Interface Module C7089R1013 Wireless Out...
Page 6 - Table 2. Thermostat Replacement Parts and Accessories.
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 6 Table 2. Thermostat Replacement Parts and Accessories. Product Part Number Operating Ambient Temperature Operating Relative Humidity Shipping Temperature Physical Dimensions in in. (mm) Color(s) Thermostat THX9421R5021WW 32 to 1...
Page 8 - SYSTEM INSTALLATION; Dealer Informaon
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 8 SYSTEM INSTALLATION When Installing this Product... 1. Read these instructions carefully. Failure to follow the instructions can damage the product or cause a hazard- ous condition. 2. Check the ratings given in the instructions...
Page 9 - INSTALLATION OPTIONS; Guidelines for Installing RedLINK; OR
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 9 68-0311—02 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 E...
Page 10 - Installing Equipment Interface; CAUTION; Wiring 24 Vac Common; Selecting Discharge Air Temperature
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 10 Installing Equipment Interface Module (if used) If no Equipment Interface Module is used, skip to “Selecting Thermostat Location” beginning on page 12. NOTE: If an EIM is mounted inside a metal cabinet, such as a commercial roo...
Page 11 - Selecting Return Air Temperature
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 11 68-0311—02 Selecting Return Air Temperature Sensor Mounting Location 1. 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...
Page 12 - Installing Discharge and Return Air; Selecting Thermostat Location; Can cause electrical shock or equipment damage.
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 12 Fig. 14. Installing Discharge and Return Air Temperature Sensors Use the following steps to mount the Discharge/Return Air Sensors: 1. Attach plastic cover to the sensor probe. 2. Drill 1/4-inch hole for the sensor probe and mo...
Page 13 - Insert Coin Cell Battery in Thermostat
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 13 68-0311—02 4. 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. Gently tap anchors (provided) into the drilled holes until f...
Page 14 - Mount Thermostat on Wallplate; POWER OPTIONAL REDLINKTM; Outdoor Air Sensor
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 14 Mount Thermostat on Wallplate Align thermostat to wallplate and snap into place. See Fig. 19. Fig. 21. Mount thermostat (THX9421). POWER OPTIONAL REDLINK™ ACCESSORIES 1. Install batteries or power the optional RedLINK accesso- ...
Page 15 - PERFORMING INITIAL SETUP; NOTE: If you are connecting the thermostat to the True-; Linking Thermostat to Equipment; NOTE: If the Connected light does NOT flash green,; Next
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 15 68-0311—02 TrueSTEAM 1. Wire and power TrueSTEAM. 2. Connect the ABCD terminals between TrueSTEAM and the THM4000 Wireless Adapter. 3. Adjust the DIP Switches on TrueSTEAM as follows when using the Wireless Adapter: • DIP3: UP • DIP4: UP ...
Page 16 - Linking RedLINKTM Accessories; Do you have RedLINK; Done
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 16 2. Follow the prompts on the thermostat screen until you reach the Wireless Setup screen. See Fig. 30. Fig. 30. 3. While the Connected light is flashing green on the EIM, press Next on the thermostat. After a short delay, the s...
Page 17 - Completing Initial Setup; thermostat setup is complete; Adding RedLINK Accessories to the; NOTE: Accessories must be at least 2 feet away from the; Installer Opons; Wireless Device Manager
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 17 68-0311—02 Completing Initial Setup 5. 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. Fi...
Page 18 - NOTE: Thermostat displays a count-down timer while in; Locating the Connect Buttons on; Wireless Outdoor Sensor; NOTE: The Portable Comfort Control can control up to 16
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 18 6. Press and quickly release the CONNECT button on each new RedLINK accessory. NOTE: For locations of CONNECT buttons on RedLINK accessories, see “Locating the Con- nect Buttons on RedLINK Accessories” begin- ning on page 18. F...
Page 19 - RedLINK Internet Gateway
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 19 68-0311—02 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 mo...
Page 20 - Linking Entry/Exit Remote or Vent Boost; Remote or Vent Boost Remote.; to Access Installer Options
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 20 3. Type the sensor name and press Done. The sensor names are used when selecting which sensor to use for temperature, humidification, and dehumidification con- trol. Fig. 51. NOTE: If you link more than 1 wireless indoor sensor...
Page 21 - Installer Options
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 21 68-0311—02 Installer Options The following options are available when you access Installer Options. For more information on each, press Help on the thermostat or see Table 3. Fig. 56. Installer Options screen. NOTE: You can use the thermo...
Page 68 - INSTALLER TESTS; Wireless Signal Strength Test:; Accessing Installer Tests; Equipment Damage Hazard.
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 68 INSTALLER TESTS 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 ...
Page 69 - Using the Equipment Test; Equipment Test; Using the Wireless Signal Strength; Wireless
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 69 68-0311—02 Using the Equipment Test 1. 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...
Page 70 - Mounting Optional Accessories; Mounting Outdoor Sensor; TEMPERATURE SENSOR; Sensor
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 70 Mounting Optional Accessories Mounting Outdoor Sensor Mount the sensor where: • it cannot be tampered with. • there is good air circulation. • it can measure true outdoor ambient temperature and humidity. • wire distance betwee...
Page 71 - Mounting Entry/Exit Remote or Vent Boost
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 71 68-0311—02 Mounting C7189U1005 Wired Indoor Sensor Use the following steps to mount the sensor: 1. Remove the cover from the remote sensor (see Fig. 70). Fig. 70. Remove the cover. 2. Pull wires through wire hole. 3. Position wallplate on...
Page 72 - OPERATION; Current date and time.
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 72 OPERATION Fig. 73. Quick reference to residential display. Fig. 74. Quick reference to commercial display. HOME. Touch to display Home screen. FAN. Select fan mode. SYSTEM. Select system mode (Heat/Cool). MENU. Touch to display...
Page 73 - Setting the time/date
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 73 68-0311—02 Setting the time/date 1. Touch the current time. The screen displays Set Time/ Set Date. Fig. 75. 2. Touch Set Time or Set Date. Fig. 76. 3. Touch or until the proper time/date is displayed. 4. Touch Done to save or Cancel ...
Page 74 - Preset Energy-Saving Schedules; Create
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 74 Preset Energy-Saving Schedules This thermostat uses default Energy Saver settings that can reduce your heating/cooling expenses by as much as 33%. * Period 2 is cancelled by default. If you activate it, the values shown above a...
Page 75 - Overriding schedules: residential use; Equipment Status
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 75 68-0311—02 Overriding schedules: residential use 1. Touch or to adjust the temperature (right side of screen) and the Hold Until time (left side). The schedule will resume when the Hold Until time expires. Fig. 86. 2. Touch Switch to ...
Page 76 - Setting vacation hold: residential use
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 76 3. 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 cool...
Page 77 - Setting custom events:; Create a new event
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 77 68-0311—02 Setting custom events: commercial use 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 s...
Page 78 - Setting holiday override:; NOTE: The cool temperature can only be set higher than; Initiating occupancy mode:; NOTE: This feature is available only when programmed; Remote setback: commercial use; Holiday Mode
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 78 4. Touch or to select the Heat and Cool temperatures. Fig. 105. 5. Review the settings and touch Done to save them. Touch Back, then Cancel to ignore the changes. Setting holiday override: commercial use This feature lets y...
Page 79 - Adjusting humidification settings
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 79 68-0311—02 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. Adju...
Page 80 - Adjusting dehumidification settings:; tilator will turn on to remove excess humidity if; Customizing screen color; tom
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 80 Adjusting dehumidification settings: commercial use This feature can control a dehumidifier or use your air conditioner to reduce humidity. 1. Touch MENU and select Dehumidification. Fig. 116. 2. Select Auto. 3. Move slider bar...
Page 82 - Make Additional Adjustments; Setting preferences; NOTE: Do NOT spray any liquid directly on the thermo-; Preferences; Clean Screen
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 82 9. Touch Make Additional Adjustments to continue mak- ing changes, or touch Accept Color Selections when you are satisfied with the selected colors and then touch HOME. Fig. 127. Fig. 128. Setting preferences Preference menu op...
Page 83 - Adjusting security settings; NOTE: If you choose to use a password for additional; Viewing dealer information; Temporary Schedule Changes; Security Sengs
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 83 68-0311—02 Adjusting security settings You can adjust security options to prevent unauthorized changes to system settings. 1. Touch MENU and select Security Settings. Fig. 133. 2. Select Change Lock Mode. Fig. 134. 3. Select an option and...
Page 84 - NOTE: See also “Overriding schedules: residential use”; Utility Scheduling
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 84 1. Press MENU 2. Scroll to select TEMPORARY SCHEDULE 3. Select option, then follow screen prompts NOTE: See also “Overriding schedules: residential use” beginning on page 75. Utility Scheduling This feature can help reduce fuel...
Page 85 - Advanced Features; ADAPTIVE INTELLIGENT RECOVERY (RESIDENTIAL USE
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 85 68-0311—02 Advanced Features ADAPTIVE INTELLIGENT RECOVERY (RESIDENTIAL USE ONLY) Over time, the Prestige® thermostat “learns” how long it takes your system to reach your programmed temperature setting. The thermostat turns on the heating...
Page 86 - Installer options; UNIVERSAL OUTPUTS; Universal Output Options
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 86 Installer options Installer Options require a password and should only be changed by a qualified technician. To prevent unintended changes or damage to your equipment, do not change these options yourself. Fig. 144. Using the t...
Page 87 - UNIVERSAL INPUTS; Universal Input Options; ALERTS AND DIAGNOSTICS; Delta T Diagnostics
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 87 68-0311—02 UNIVERSAL INPUTS (S1, S2, S3, S4) 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 d...
Page 88 - Setting up Alerts and Diagnostics
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 88 7. Delta T Diagnostics is only for non-zoned forced air systems. 8. The thermostat does not provide Heat or Cool Delta T Diagnostics when it is set to control an Economizer module (ISU 2220). 9. The thermostat cannot be setup f...
Page 89 - Set Up Diagnostics; If You Decide to Set Up Diagnostics Later; NOTE: The thermostat only saves test data for stages
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 89 68-0311—02 5. 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 defro...
Page 90 - Set Delta T Limits; Delta T Alerts; Setting
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 90 Set Delta T Limits 1. Press Stage 1 to set the limits and run time (see Fig. 158). Use the saved test data located in the upper right corner of the screen to set the Delta T Minimum and Maximum Limits and the Run Time (see Fig....
Page 91 - Delta T Alerts and Utility Saver
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 91 68-0311—02 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...
Page 92 - Alerts Log; Show Active Alerts
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 92 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 disp...
Page 93 - User Interactions Log; NOTE: Only applies to THX9421 Thermostat with an
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 93 68-0311—02 User Interactions Log The User Interactions Log can help a service technician save time by determining if the issue is related to a system problem or an accidental user error. The User Interactions Log records the date and time...
Page 94 - Using the Data Logs; TO ACCESS THE DATA LOGS; Using the Performance Logs
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 94 Using the Data Logs 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 vie...
Page 95 - TO SAVE A DATA LOG TO A MEMORY STICK; Dry Contact Alerts
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 95 68-0311—02 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 Tem...
Page 96 - NOTE: If you want the compressor to turn off when the; Set Up the Dry Contact Alerts; WARNING; NOTE: You can connect multiple Dry Contact devices in
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 96 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. Fig. 185. The following dry contact alerts are available. Full Drain Pan A...
Page 97 - Staging Control; Differential Between All Stages
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 97 68-0311—02 1. Wire the dry contact device to S1, S2, S3, or S4 termi- nals at the EIM. 2. Enter Installer Setup (see “Installer Options” beginning on page 21). 3. Dry Contacts are selected at ISU 6000. Select the appro- priate Dry Contact...
Page 98 - Cool Differential
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 98 Cool Differential 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 (...
Page 99 - Backup Heat Upstage Timer
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 99 68-0311—02 2. Default is Comfort. Adjust differentials as needed. Fig. 195. Backup Heat Upstage Timer The Backup Heat Upstage Timer is available for any system with 2 heating types and the Backup Heat Differential is set to 2 °F (1.0 °C) ...
Page 100 - HEAT PUMP AND BACKUP HEAT OPERATION; Heat pump with outdoor temperature lockouts; Electric Backup Heat (Backup Heat Allowed; Backup heat allowed to run with heat pump
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 100 HEAT PUMP AND BACKUP HEAT OPERATION Heat pump with outdoor temperature lockouts Outdoor temperature lockouts are optional. See Installer Setup options (ISU 3120). Geothermal Radiant Heat The thermostat can be setup to control ...
Page 101 - Fossil Fuel Backup Heat (Backup Heat NOT; HEAT MODE; Set Up Geothermal Radiant Heat
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 101 68-0311—02 Fossil Fuel Backup Heat (Backup Heat NOT Allowed to Run with Heat Pump) HEAT MODE The thermostat turns on Backup Heat only when the indoor temperature drops to the selected Backup Heat Differential setting or the Backup Heat U...
Page 102 - CONTROL; Humidification; Window Protection
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 102 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 hu...
Page 104 - Control Humidification Level
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 104 7. Set the desired lockout option. See Fig. 214. Fig. 214. NOTE: ISU 10140 gives the option to lockout ventila- tion during calls for humidification. This helps maintain the desired humidity level. Control Humidification Level...
Page 105 - Dehumidification - Residential; Dehumidification using the Cooling System; NOTE: The thermostat will not lower the fan speed when; Set up Dehumidification With Cooling
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 105 68-0311—02 Dehumidification - Residential 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 dehumidi...
Page 106 - Normally Open; Dehumidification using a Whole House
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 106 5. 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 ...
Page 107 - Heat; Dehumidification Away Mode
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 107 68-0311—02 4. Select the terminals wired to the Whole House Dehumid- ifier. See Fig. 225. Fig. 225. 5. Select the system mode(s) to allow dehumidification. See Fig. 226. NOTE: Heat includes Heat, Emergency Heat and Auto. If the system is...
Page 108 - Set up Dehumidification Away Mode
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 108 Set up Dehumidification Away Mode 1. Select Allowed at ISU 9180. See Fig. 231. Fig. 231. 2. Set Fan Control settings. See Fig. 232. • On: Fan is always on. • Automatic: Fan runs only when cooling system is on. • Circulate: Fan...
Page 109 - Dehumidification - Commercial
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 109 68-0311—02 Dehumidification - Commercial 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 dehumidifier. If humi...
Page 110 - Dehumidification using a Dehumidifier
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 110 2. If optional remote wireless indoor sensors are installed, you can choose which sensor you want to use for dehu- midification control. For example, you can use one sen- sor for humidification control, and another for dehumid...
Page 112 - Ventilation
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 112 Dehumidification Away Mode 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 Dehumidifica...
Page 113 - Ventilation — Outdoor Condition Lockouts
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 113 68-0311—02 Ventilation Fan Control (ISU 10060) • 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 n...
Page 114 - Lockouts are Priority:
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 114 4. 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 th...
Page 115 - Control Ventilation Level
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 115 68-0311—02 8. If Percent On Time was selected for ISU 10050, select the Ventilation Percent on Time. See Fig. 255. Fig. 255. 9. Select the Outdoor Condition Lockouts. See “Ventilation — Outdoor Condition Lockouts (ISU 10130)” on page 113...
Page 116 - IAQ REMINDERS; Ventilator Filter are displayed under Preferences; CUSTOMIZABLE REMINDERS
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 116 4. Press MORE SETTINGS to change maintenance reminders or set outdoor lockouts (if set to Yes, ventila- tion will not run when outdoor conditions exceed values set by the installer). NOTE: If set up for humidification in heat ...
Page 117 - Custom Reminders include:; • Service Reminder
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 117 68-0311—02 Custom Reminders include: • 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 ...
Page 119 - USB PORT; Load Installer Setup
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 119 68-0311—02 7. The preview of the custom reminder shows you what you’ve selected. Press Done to accept the reminder, or press Back to change it. Fig. 273. 8. The New Custom Reminder will look like this on the Home Screen: Fig. 274. 9. Whe...
Page 120 - Loading Dealer Information
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 120 Loading Dealer Information 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...
Page 121 - COMMERCIAL FEATURES; Overriding schedules: commercial; Holiday
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 121 68-0311—02 COMMERCIAL FEATURES The thermostat can be setup for residential or light commercial applications (ISU 1010). When the thermostat is setup for commercial, the thermostat meets commercial code, Title 24 and provides the followin...
Page 123 - Ramp Rates
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 123 68-0311—02 4. Touch or to select the Heat and Cool temperatures. Fig. 290. 5. Review the settings and touch Done to save them. Touch Back, then Cancel to ignore the changes. Setting holiday override: commercial use This feature lets ...
Page 124 - NOTE: The thermostat uses an adjustable ramp rate; Custom Names; Set Up Remote Setback
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 124 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...
Page 126 - Operation; Economizer; Thermostat Mode
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 126 Economizer and Time of Day (TOD) Operation Economizer The thermostat controls an economizer module to provide ventilation during occupied periods and free cooling when outdoor conditions are favorable. In some climates the coo...
Page 127 - Battery Replacement; Wireless Indoor Sensor; NOTE: After installing batteries, the status light may
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 127 68-0311—02 Battery Replacement Wireless Indoor Sensor Replace batteries in your indoor sensor when a warning appears on the thermostat screen, about two months before batteries are depleted. When the sensor status light begins flashing r...
Page 128 - OPTIONAL ACCESSORIES
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 128 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. ...
Page 129 - PORTABLE COMFORT CONTROL
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 129 68-0311—02 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. If you have o...
Page 130 - REMOTE INDOOR SENSORS; Indoor Sensor Operation; Temperature Control
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 130 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. ...
Page 131 - Temperature Display; Humidity Display
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 131 68-0311—02 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...
Page 133 - Calibration - Outdoor Sensor; Calibration - Indoor Sensor
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 133 68-0311—02 Calibration - Outdoor Sensor The C7089U1006 Outdoor Sensor is calibrated at the factory and cannot be recalibrated in the field. Calibration - Indoor Sensor The C7189U1005 Wall Mount Temperature Sensor is calibrated at the fac...
Page 134 - BACKUP CONTROL
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 134 BACKUP CONTROL This section explains when backup control is used. For example, if batteries in the wireless indoor sensors are depleted. If the Thermostat is Part of the Temperature Average 1. The thermostat controls the syste...
Page 135 - WIRING
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 135 68-0311—02 WIRING See Table 13 for Equipment Interface Module terminal descriptions and Table 14 for thermostat terminal descriptions. * Remove jumpers when separate transformers are used. † See “Wiring IAQ Equipment or a Heat/Cool Stage...
Page 138 - EIM Wiring Diagrams
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 138 EIM Wiring Diagrams Typical wiring of a conventional system with up to 3-stage heat and 2-stage cool with one transformer. Fig. 319. EIM wiring guide — conventional systems. 1 See guides on following pages for thermostat wirin...
Page 141 - THX9321 Thermostat Wiring Diagrams; Fig. 322. Prestige THX9321 and heat pump system with
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 141 68-0311—02 THX9321 Thermostat Wiring Diagrams Typical wiring of a 3-heat / 2-cool heat pump system with one transformer. Fig. 322. Prestige THX9321 and heat pump system with one transformer. Typical wiring of a 2-heat / 2-cool convention...
Page 143 - Fig. 330. AQ2000 series panels or other hot water relay
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 143 68-0311—02 Fig. 328. 2-Wire Zone Valve with end switch. Fig. 329. Series 20 hot water heat. Fig. 330. AQ2000 series panels or other hot water relay panels. Fig. 331. Heat pump with oil forced air backup. TRANSFORMER THERMOSTAT/EIM R IS J...
Page 145 - Fig. 333. Wood stove-fired hot water fan coil with forced air
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 145 68-0311—02 Fig. 333. Wood stove-fired hot water fan coil with forced air furnace backup heat. Fig. 334. Hot water radiant heat with backup heat (single zone application). W W2 W3 W Y G R C CONFIGURE THE THERMOSTAT TO ENERGIZE THE FAN WIT...
Page 147 - Fig. 336. Hot water radiant heat with backup forced air
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 147 68-0311—02 Fig. 336. Hot water radiant heat with backup forced air heat. Zoned with forced air zone panel and hot water panel. Fig. 337. Hot water fan coil with forced air furnace backup heat. M31485 HOT WATER RELAY PANEL RH W W W2 W3 W ...
Page 148 - pump and backup heat as needed to maintain the temperature.
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 148 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...
Page 149 - To Equipment Interface Module
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 149 68-0311—02 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. Fig. 339. Wiring a powered humidifier. Fig. 340....
Page 151 - Economizer Module Wiring Diagrams; Fig. 346. Wiring a W7220 Economizer Module for a heat pump system.
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 151 68-0311—02 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. Fig. 346. Wiring a W7220 Economizer Module for a heat pum...
Page 153 - Can cause erratic system operation.; Electrical Shock Hazard.
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 153 68-0311—02 Wiring C7089U1006 Outdoor Sensor 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 ballast...
Page 154 - Wiring guide — Wired Indoor Sensors
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 154 Wiring guide — Wired Indoor Sensors Use the S1, S2, S3, or S4 terminals for wired sensors. CAUTION Electrical Interference (Noise) Hazard. Can cause erratic system operation. Keep wiring at least one foot away from large induc...
Page 155 - ZONING
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 155 68-0311—02 ZONING The following diagrams show the wiring for zoning with different IAQ equipment. Fig. 355. Prestige IAQ thermostats with an HZ432 zone panel and no IAQ control. C R C R C R C R RHRC W1/E W2W3 Y1Y2 GO B DS/BK MCR34669 TRA...
Page 156 - Zoning and Humidification; Setting up Humidification Control on Prestige or Prestige IAQ
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 156 Zoning and Humidification Fig. 356. Prestige IAQ controlling one zone with an HZ432 zone panel and a TrueSTEAM humidifier. Setting up Humidification Control on Prestige or Prestige IAQ Select the terminals wired to the humidif...
Page 157 - Zoning and Ventilation; Setting up Ventilation Control on Prestige or Prestige IAQ; TrueDRY dehumidifier with Zoning; Setting up Dehumidification Control on Prestige or Prestige IAQ
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 157 68-0311—02 Zoning and Ventilation Fig. 357. Ventilation with zoning. Setting up Ventilation Control on Prestige or Prestige IAQ Select the terminals wired to the ventilator at ISU 10020 (U1, U2, U3). In Fig. 357, the ventilator is wired ...
Page 158 - Zoning FAQs; Zone panel with no master or slave:
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 68-0311—02 158 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...
Page 159 - TROUBLESHOOTING; FCC Interference Statement; Symptom
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM 159 68-0311—02 TROUBLESHOOTING REGULATORY INFORMATION FCC Compliance Statement (Part 15.19) (USA only) This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause har...
Page 160 - Automation and Control Solutions
THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM Automation and Control Solutions Honeywell International Inc.1985 Douglas Drive NorthGolden Valley, MN 55422customer.honeywell.com ® U.S. Registered Trademark© 2013 Honeywell International Inc.68-0311—02 M.S. Rev. 04-13Printed in United Stat...
Honeywell DT8050A
Installation Manual
Honeywell DT8050
Manual
Honeywell TPFIT25WK
User Manual
Honeywell TPFIT32AWK
User Manual
Honeywell 24DX47
User Manual
Honeywell TPFIT50PWK
User Manual
Honeywell TPFIT50WK
User Manual
Honeywell 00010
User Manual
Honeywell ADVBLEWIFI
Manual