THX9321 Prestige® 2.0 and THX9421 Prestige® IAQ with EIM PRODUCT DATA THX9421 Prestige® IAQ with EIM THX9321 Prestige® 2.0 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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM CONTENTS Application ..................................................... Specifications ................................................ Ordering Information .................................. Ordering Info System Installation ...................................... 1 3 8 When Installing this Product... .............................. 8 Installing Equipment Interface Module (if used) ...........................................
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 Temperature Setting Range: Heating: 40 to 90 °F (4.5 to 32 °C). Cooling: 50 to 99 °F (10 to 37 °C).
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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 1. Prestige Kits. Included in Kit Kit Part Number Prestige IAQ Kit YTHX9421R5101WW Prestige IAQ Kit YTHX9421R5085WW Prestige IAQ Kit YTHX9421R7001WW Part Number THX9421R5021WW Description Thermostat - White Front, White Side THM5421R1021 Equipment Interface Module C7089R1013 Wireless Outdoor Sensor 50062329-001 Discharge/Return Sensors (Qty.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 2. Thermostat Replacement Parts and Accessories. (Continued) Product Wireless Indoor Sensor Operating Ambient Temperature Part Number C7189R1004 0 to 120 °F (-17.8 to 48.9 °C) Operating Relative Humidity Shipping Temperature Physical Dimensions in in. (mm) Color(s) 5% to 90% -20 to 120 °F 2-7/8 x 1-7/8 x 15/16 Non-Condensing (-28.9 to 48.9 °C) (74 x 48 x 24) Arctic White -- For optimal Battery Life: 35 to 114 °F (1.7 to 45.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 2. Thermostat Replacement Parts and Accessories. (Continued) Product Operating Ambient Temperature Part Number Occupancy Sensor WSK-24 for Remote Setback (Requires an Equipment Interface Module) Receiver: - 5 to 140 °F (-21 to 60 °C) Operating Relative Humidity -- Shipping Temperature -- Physical Dimensions in in. (mm) Receiver: 3.6 x 3.4 x 1.2 (91.4 x 86.4 x 30.5) Door Sensor: -4 to 140 °F (-20 to 60 °C) Door Sensor: 1.4 x 2.3 x 0.
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.
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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Installing Equipment Interface Module (if used) 1. If no Equipment Interface Module is used, skip to “Selecting Thermostat Location” beginning on page 12. 2. 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 138.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 4. See Fig. 11. When setting the Delta T Limits (see “Set Delta T Limits” on page 89), be sure to consider the affect that the humidifier has on Delta T. If a Bypass Humidifier is installed, mount the Discharge Air Temperature Sensor downstream of the Bypass Humidifier. See Fig. 13–14. Selecting Return Air Temperature Sensor Mounting Location 1. ALTERNATE MOUNTING LOCATION FOR DISCHARGE SENSOR.
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 MOUNT RETURN SENSOR HERE MOUNT DOWNSTREAM OF BYPASS HUMIDIFIER, DEHUMIDIFIER OR VENTILATOR NO NO HEAT EXCHANGER 5 FEET [1.5 METERS] NO BLOWER M33079A Fig. 14.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 4. 5. 6. 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 flush with the wall. Position the wallplate over the holes, pulling wires through the wiring opening. See Fig. 18. Insert the mounting screws into the holes and tighten. INSTALLATION WITH TRUEZONE WIRELESS ADAPTER 1.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Mount Thermostat on Wallplate Portable Comfort Control Align thermostat to wallplate and snap into place. See Fig. 19. 1. 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.
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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 2. Follow the prompts on the thermostat screen until you reach the Wireless Setup screen. See Fig. 30. 1. 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.
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. Fig. 35. Scheduling options. 6.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 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 Connect Buttons on RedLINK Accessories” beginning on page 18. Locating the Connect Buttons on RedLINK Accessories Wireless Outdoor Sensor 1. Press and quickly release the CONNECT button on the Wireless Outdoor Sensor.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 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). TrueSTEAM 1. Press and quickly release the CONNECT button on THM4000 Wireless Adapter.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 3. Type the sensor name and press Done. The sensor names are used when selecting which sensor to use for temperature, humidification, and dehumidification control. 2. After a short delay, the status light will glow green for 15 seconds. If the status light turns red, the remote did not link with the thermostat for the connection process. NOTE: The thermostat can work with up to 3 Entry/Exit remotes.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 3. Installer Options. Menu Item Description Create Setup Press CREATE SETUP to set all system settings one by one. View/Edit Current Setup Press VIEW/EDIT CURRENT SETUP to select a specific function and make quick changes Set Up Diagnostics Press SET UP DIAGNOSTICS to set up and test Delta T diagnostics. Installer Test Press INSTALLER TEST to quickly determine if the heat, cool, fan and thermostat are operating properly.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 4. Select Create Setup. Installer Op ons Fig. 57. 3. Fig. 59. Enter password (Date Code) and touch Done. See “Finding Your Password (Date Code) to Access Installer Options” beginning on page 20 for more information. 5. Follow prompts on the screen to select the desired setup options. See Table 4 for Installer Setup options. Done Fig. 58. Table 4. Installer Setup (ISU) Table.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 1050 1060 Installer Setup Name Settings Temperature Indication Scale Fahrenheit Outdoor Air Sensor No Default Residential, Commercial Requires or Both EIM Fahrenheit Both No No Both No Notes Celsius Yes This ISU automatically defaults to Yes when a Wireless Outdoor Sensor is connected.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 2050 Installer Setup Name Geothermal Forced Air System Settings None Used for Cooling Only Default Residential, Commercial Requires or Both EIM Used for Heating Both and Cooling No Used for Heating and Cooling Notes This thermostat has the capability of controlling Geothermal Radiant Heat, Geothermal Forced Air and Backup Heat.
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 - Stage U1 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).
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 0 - 2 2140 What Terminals are Wired to Backup Heat? 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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 2170 Installer Setup Name What Terminals are Wired to Backup Heat - Stage 2? Settings None U1 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).
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 2220 Installer Setup Name A-L/A Terminal Setup Settings None Default None Residential, Commercial Requires or Both EIM Commercial No Time Of Day Economizer Notes This ISU is only displayed when ISU 1010 Application is Commercial. Note: When the thermostat is setup for Residential, the L/A terminal operates as described under “Heat Pump Failure Indication.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3000 Installer Setup Name Deadband Settings 2° F to 9° F (in 1° F increments) Default 3° F Residential, Commercial Requires or Both EIM Both No Notes This ISU is only displayed when ISU 3000 is set to Automatic. Deadband is the minimum separation between heat and cool settings when the thermostat is setup for Auto Changeover.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3021 Installer Setup Name Finish With High Heat 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 Heat Stage. This ISU is only displayed when the thermostat is set for 2 or more heat stages.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3040 Installer Setup Name Staging Control Radiant Heat Differential Stage 2 Settings Comfort Default Comfort Residential, Commercial Requires or Both EIM Both No 1.0° F to 3.5° 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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3060 Installer Setup Name Staging Control Compressor Heat Differential Stage 1 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) Notes ISU 3010 Temperature Control Options must be set to Advanced to view or adjust this ISU.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3080, 3090 Installer Setup Name Staging Control Backup Heat Differential Stage 2 Settings Comfort Default Comfort Residential, Commercial Requires or Both EIM Both No 2.0° F to 15.5° F from setpoint (in 0.5° F increments) Notes ISU 3010 Temperature Control Options must be set to Advanced to view or adjust Backup Heat Differential Stage 2.
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 Default Off Residential, Commercial Requires or Both EIM Both No 5° F to 65° F (in 5° F increments) Notes ISU 3120 Backup Heat Outdoor Temperature Lockout requires an outdoor sensor.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3140 Installer Setup Name Cool / Compressor Cycles Per Hour Stage 1 Settings 1 to 6 CPH Default 3 Residential, Commercial Requires or Both EIM Both No Cool / Compressor Cycles Per Hour Stage 2 ISU 3010 Temperature Control Options must be set to Advanced to view or adjust cycle rate. This ISU is only displayed when ISU 2070 Cool / Compressor Stages is set to 1 stage.
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 1 to 12 CPH - Stage 1 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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3150 Installer Setup Name Settings Heat Cycles Per Hour 1 to 12 CPH - Stage 3 Note: Depending on the application, the text displayed on the screen may show the specific heating equipment type.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 3160 Installer Setup Name Backup Heat Cycles Per Hour - Stage 2 Settings 1 to 12 CPH Default Residential, Commercial Requires or Both EIM Both Default varies based on heating equipment type selected 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 2070 or 2130 Backup Heat Stages is set to 2 stages.
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 3210 Heating Integral 0, 100 to 25,000 sec 10,000 sec Commercial No The default Heating Integral is 10,000 seconds which is appropriate for most applications. Do not change this setting unless advised to do so by Honeywell technical support. The integral controls how much droop is used.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 4030 Installer Setup Name Override Duration Settings No Limit Default Residential, Commercial Requires or Both EIM 3 hours Commercial No When the user presses the OVERRIDE button, the thermostat will maintain the new temperature for at least 1 hour. The user can adjust the Hold Until time from 1 hour to the amount set for the Override Duration (1-12 hours).
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 4060 Installer Setup Name Settings Off Maximum Heat Recovery Ramp Rate 1° F/hr to 20° F/hr Default 8° F/hr Residential, Commercial Requires or Both EIM Commercial No Notes Off: The heating system will begin recovery at the time that is scheduled.
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 Minimum Cool Recovery Ramp Rate 1° F/hr to 20° F/hr Default 3° F/hr Residential, Commercial Requires or Both EIM Commercial No Notes Off: The cooling system will begin recovery at the time that is scheduled.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 4080 Installer Setup Name Settings Off Maximum Cool Recovery Ramp Rate 1° F/hr to 20° F/hr Default 6° F/hr Residential, Commercial Requires or Both EIM Commercial No Notes Off: The cooling system will begin recovery at the time that is scheduled.
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 4100 Minimum Cool Setpoint 50° F to 99° F 50° F Both No The user cannot set the temperature below this level. 4100 Maximum Heat Setpoint 40° F to 90° F 90° F Both No The user cannot set the temperature above this level.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 5030 Installer Setup Name Settings Indoor Temperature 10K Sensor Type 20K Default 10K: if ISU 1010 Application is Residential Residential, Commercial Requires or Both EIM Both Yes Notes Wired Sensors requires an EIM (Equipment Interface Module). Select 10K or 20K based on the sensor installed.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 5100 Installer Setup Name Settings 10K Discharge Air Temperature Sensor 20K Type Default 10K Residential, Commercial Requires or Both EIM Both Yes Notes Wired Sensors requires an EIM (Equipment Interface Module). Select 10K or 20K based on the sensor installed.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 6030 Installer Setup Name Remote Setback Time Delay from Occupied to Unoccupied Settings 0 to 30 minutes (in 5 minute increments) Default 0 minutes Residential, Commercial Requires or Both EIM Commercial Yes Notes Remote Setback requires an EIM (Equipment Interface Module).
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 6070 Installer Setup Name What Terminals are Wired to the Dirty Filter Alert Dry Contact? Settings None Default Residential, Commercial Requires or Both EIM Notes None Both Yes Dry Contact Alerts require an EIM (Equipment Interface Module). Normally Open Both Yes Dry Contact Alerts require an EIM (Equipment Interface Module).
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 6130 Installer Setup Name Settings What Terminals are None Wired to the Service S1 Needed Alert Dry S2 Contact? Default Residential, Commercial Requires or Both EIM Notes None Both Yes Dry Contact Alerts require an EIM (Equipment Interface Module). Normally Open Both Yes Dry Contact Alerts require an EIM (Equipment Interface Module).
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 6190 Installer Setup Name Custom Alert Name Settings View/Edit Custom Alert Default View/Edit Custom Alert Residential, Commercial Requires or Both EIM Both Yes Notes Dry Contact Alerts require an EIM (Equipment Interface Module). Enter a name for the custom alert dry contact.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 9070 Installer Setup Name Dehumidification Overcooling Limit Settings 0°, 1°, 2°, 3° F Default 3° F Residential, Commercial Requires or Both EIM Residential No Notes This ISU is only displayed when ISU 9000 Dehumidification Equipment is set to A/C with Low Speed Fan or A/C with High Speed Fan.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 9120 Installer Setup Name System Modes Allowing Dehumidification Settings Check box on screen for each: Default Cool Residential, Commercial Requires or Both EIM Both No Heat Cool Off Default varies based on heating/cooling equipment selected Notes This ISU is only displayed when ISU 9000 Dehumidification Equipment is set to Dehumidifier.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 10060 Installer Setup Name Ventilation Fan Control Settings Thermostat Controls Fan Equipment Controls Fan Default Thermostat Controls Fan Residential, Commercial Requires or Both EIM Both No if “fresh air damper” or “passive” is selected for ISU 10,000. This setting is not shown and thermostat controls fan by default.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 10130 Installer Setup Name Ventilation Low Temperature Lockout Settings Off Default Off Residential, Commercial Requires or Both EIM Both No -20° F to 40° 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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 13030 Installer Setup Name Allow Delta T Diagnostics During Dehumidification Settings No Default Yes Residential, Commercial Requires or Both EIM Both Yes 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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 13130 Installer Setup Name Allow Cool Delta T Diagnostics when Indoor Temperature is [Indoor Temperature Range] Settings Minimum Setting No Limit (Always) Both Yes Notes This ISU only applies to Cooling. This ISU is only displayed when ISU 13015 Set Advanced Diagnostic Options is set to Yes.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 4. Installer Setup (ISU) Table. (Continued) ISU Number 13190 Installer Setup Name Settings Display Delta T Alerts No to User Yes Default Yes Residential, Commercial Requires or Both EIM Both Yes Notes No: The thermostat does NOT display a Delta T alert to the user when a Delta T alert is entered into the log. Yes: The thermostat displays a Delta T alert to the user when a Delta T alert is entered into the log.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 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 operate properly. Any minimum off timers are ignored during the system test.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Using the Equipment Test 1. 2. Press Equipment Test on the Installer Test screen (see Fig. 62). 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).
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 157. Mount the sensor where: • it cannot be tampered with. • there is good air circulation.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Mounting C7189U1005 Wired Indoor Sensor 5. Place wallplate over anchors, insert and tighten mounting screws (see Fig. 72). Use the following steps to mount the sensor: 1. Remove the cover from the remote sensor (see Fig. 71). M24057 Fig. 72. Mount wallplate to wall. 6. Mounting Entry/Exit Remote or Vent Boost Remote M24056 Fig. 71. Remove the cover. 2. 3. 4. Replace the cover on the remote sensor. Mounting the remote is optional.
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.
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. 80. Fig. 76. 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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Preset Energy-Saving Schedules 2. Select Create/Edit Schedule. This thermostat uses default Energy Saver settings that can reduce your heating/cooling expenses. Create / Edit Schedule Table 5. Residential Use Default Schedule.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 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. Next Switch To Permanent Hold 6:00 am Fig. 87. WAKE 2. 3. Fig. 85. 5. Touch or to set Heat and Cool temperatures for the Wake period, then touch Done.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 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 cooling • Fan • Humidification • Dehumidification • Ventilation • Maintenance reminders • Thermostat information. OVERRIDE Fig. 89. The programmed schedule will resume when the override timer expires.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM • US and Canadian Holiday options let you select from a list of holidays commonly observed in each country. Next Fig. 95. 4. Review your selections on the last display, and touch Done to save your settings. Touch Back, then Cancel to ignore the changes. Fig. 99. 4. 5. Make selections as prompted on each screen. For more information, see next two pages. Touch Done to save your settings.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Set the holiday schedule for Occupied or Unoccupied temperatures, depending whether the building will be in use. Next Next Fig. 102. 4. • For Specific Date, you are prompted to select the start date, settings, end date, and frequency for the event. • For Month/Weekday, you are prompted to select the month, day of the week, week of the month, settings, length of event, and frequency of the event. Review the settings and touch Done to save them.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Touch the or buttons to set the temperature or the Hold Until time. The temperature is maintained until the time you set. Temperature returns to an energysaving level after the timer expires, or the “Occupied” period ends. NOTE: This feature is available only when programmed by the installer.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Adjusting dehumidification settings: residential use This feature can control a dehumidifier or use your air conditioner to reduce humidity. 1. Touch MENU and select Dehumidification. MENU Dehumidifica on Fig. 114. 5. 6. 7. Touch Done to save your settings. Touch Cancel to ignore changes. Window Protection is set on a scale from 1–10. A setting of 1 represents poorly insulated windows and a setting of 10 represents well insulated windows.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Adjusting dehumidification settings: commercial use 2. This feature can control a dehumidifier or use your air conditioner to reduce humidity. 1. 3. Touch MENU and select Dehumidification. Touch Setting, then select: • Auto: Ventilation runs as programmed by the installer. • Off: Ventilation remains off unless turned on using the timer. • On: Ventilation is always on. Touch or to run ventilation temporarily. To turn it off, set it to zero.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Fig. 125. Fig. 122. 4. 5. 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. 7. 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.
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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM NOTE: Do NOT spray any liquid directly on the thermostat. Spray liquids onto a cloth, then use the damp cloth to clean the screen. Use water or household glass cleaner. Avoid abrasive cleansers. NOTE: If you choose to use a password for additional security, write it here for reference: Adjusting security settings You can adjust security options to prevent unauthorized changes to system settings. 1. Touch MENU and select Security Settings.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 2. 1. Press MENU 2. Scroll to select TEMPORARY SCHEDULE 3. Select option, then follow screen prompts Press On, then press Next. Fig. 140. 3. 4. 5. NOTE: See also “Overriding schedules: residential use” beginning on page 73. 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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 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/cooling system early and assures that the programmed temperature setting is reached at the programmed time regardless of weather conditions.
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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM UNIVERSAL INPUTS (S1, S2, S3, S4) beginning on page 89), an alert is recorded in the log. If configured to do so, the system will then display an alert to the homeowner, along with your contact information. 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 95 and page 158.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 6. Set Minimum and Maximum Delta T Limits based on what you consider to be unacceptable performance from the heating and cooling equipment. NOTE: When the system operates below the Minimum Limit or above the Maximum Limit multiple times (Table 7), an alert is recorded in the log. If configured to do so, the thermostat will display an alert to the user, along with your contact information. 7. 8. 9. 3.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 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 defrost cycle time. NOTE: The passcode is the date code printed on the back of the thermostat or press MENU > EQUIPMENT STATUS to find the date code. 4. Press Set Up Diagnostics. Fig. 154. 6. Fig. 156.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM NOTE: The thermostat only saves test data for stages that run 1 minute or longer. minimum limit or above the maximum limit multiple times (see Table 7), an alert is recorded in the Alerts Log. If configured to do so, an alert is displayed to the user (Display Delta T Alerts to User, ISU 13190). The user is alerted by default. For example, if 10 of the last 15 cycles have the same fault, an alert is logged and the user is alerted.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM This tells you if the system is performing above or below expected standards which would normally go unnoticed, and may cause unnecessary energy use. It can also detect and warn about problems early, before heating or cooling equipment fails. There are three alerts each for the heating and cooling system.
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. 168. Fig. 165.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM • The alert message that is displayed to the user. • The alert status (snoozed, dismissed, recovered) 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.
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 93. Press Performance Logs. Fig. 177. 2. Select the desired log to view performance history. Fig. 174.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 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. 3. 4. Press Data Logs. Select the log you want to save to USB. Fig. 183. 5. Fig. 180. 5.
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. Service Needed Alert When the dry contact device detects an issue that requires service, the thermostat provides an alert to the user.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM ONE DRY CONTACT DEVICE ONE DRY CONTACT DEVICE EIM EIM MULTIPLE DRY CONTACT DEVICES ON ONE SET OF TERMINALS S4 S4 MULTIPLE DRY CONTACT DEVICES ON ONE SET OF TERMINALS S3 S3 Fig. 187. Wiring dry contact devices. 1. 2. 3. Refer to the instructions packed with the dry contact device to determine if it is normally open or normally closed. Wire the dry contact device to S1, S2, S3, or S4 terminals at the EIM.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 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 (1.0 °C) away from the setpoint before stage 2 turns on. When set to Comfort, the thermostat uses the stage cooling as needed to keep the indoor temperature within 1 °F (0.5 °C) degree of the setpoint.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM differential is set to 2 °F (1.0 °C), the indoor temperature must be 2 °F (1.0 °C) away from the setpoint before the backup heat turns on. 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. TO CHANGE BACKUP HEAT DIFFERENTIAL (DROOP) SETTINGS 1.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Backup Heat Upstage Timer Multistage Control 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) or higher. 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.
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).
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM expires (whichever occurs first). Geothermal Radiant Heat and Geothermal Forced Air Heat stay on when the Backup Heat turns on. 3. Select the universal terminals wired to the Geothermal Radiant Heat. See Fig. 204. EMERGENCY HEAT MODE The thermostat turns on the Backup Heat to maintain the desired temperature setting. Geothermal Radiant Heat and Geothermal Forced Air Heat are not used.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Window Protection Window Protection limits the amount of humidity to prevent frost or condensation on windows. Window Protection (ISU 8050) requires an outdoor sensor. The maximum humidity level that is allowed (“Window Limit”) is displayed on the Humidification Settings screen. The thermostat prevents frost or condensation on windows by not allowing the humidifier to run above the “Window Limit.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM “Wiring IAQ Equipment or a Heat/Cool Stage to the Universal Terminals” beginning on page 152. If Window Protection is turned Off, the thermostat controls the humidity level to the user's desired humidity setting. Frost or condensation may appear on windows. Set up Humidification 1. Select the Humidifier Type at ISU 8000. See Fig. 211.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM NOTE: ISU 10140 gives the option to lockout ventilation during calls for humidification. This helps maintain the desired humidity level. Control Humidification Level 1. 2. 3. 4. 5. Fig. 215. 6. Select from one of the Humidification Control Options (ISU 8070). See Fig. 216. • Humidify Only when Heat is On The thermostat turns on the humidifier only if the heat is currently running and humidification is needed.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Dehumidification - Residential Press MENU 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.
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 132 for more information. Fig. 219.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 5. Select whether the U1, U2, or U3 terminals are Normally Open or Normally Closed. See Fig. 224. • 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. 1. Select the Dehumidification Equipment in ISU 9000. See Fig. 226. Fig. 226. 2. Fig. 224. 6. Set the Overcooling Limit. See Fig. 225.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 4. Select the terminals wired to the Whole House Dehumidifier. See Fig. 229. Fig. 231. 7. Fig. 229. 5. Set the desired lockout option. See Fig. 232. Select the system mode(s) to allow dehumidification. See Fig. 230. NOTE: Heat includes Heat, Emergency Heat and Auto. If the system is in Auto mode, the thermostat will allow dehumidification if the last call was for heat. Cool includes Cool and Auto.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM • Temperature Setting The temperature maintained while Dehumidification Away Mode is active and the desired humidity level is satisfied. • Dehumidification Setting The desired humidity level while Dehumidification Away Mode is active. Fig. 234. Set up Dehumidification Away Mode 1. Select Allowed at ISU 9180. See Fig. 235. Fig. 237. Control Dehumidification Level 1. 2. 3. 4. Fig. 235. 2.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM humidification and dehumidification to operate at the same time, and there is no deadband between humidification and dehumidification settings.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM another for dehumidification. See “Wireless Indoor Sensor” beginning on page 132 for more information. cannot be used in the Heat mode. This option is effective only if using a system with the A-Coil located before the heating coil (heat exchanger). This feature requires a conventional forced air heating system (gas, oil, or electric) in the application.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 1. Select the Dehumidification Equipment in ISU 9000. See Fig. 246. Fig. 244. 6. Set the Dehumidification Control. See Fig. 245. For more information about these options, see “Dehumidification using the Cooling System” on page 110. Fig. 246. 2. If optional remote wireless indoor sensors are installed, you can choose which sensor you want to use for dehumidification control.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 4. Select the terminals wired to the Dehumidifier. See Fig. 249. Fig. 251. 7. Fig. 249. 5. Set the desired lockout option. See Fig. 252. Select the system mode(s) to allow dehumidification. See Fig. 250. NOTE: Heat includes Heat, Emergency Heat and Auto. If the system is in Auto mode, the thermostat will allow dehumidification if the last call was for heat. Cool includes Cool and Auto.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM NOTE: If humidification and dehumidification are setup to operate in the same system mode (Heat, Cool, Off) and you are sensing humidity from one location, the thermostat will automatically enforce a 15% deadband between the humidification and dehumidification settings. The thermostat will automatically switch between humidification and dehumidification to maintain the desired humidity level.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Ventilation — Outdoor Condition Lockouts (ISU 10130) 2. Select the terminals wired to the Ventilator (or Fresh Air Damper). See Fig. 254. Ventilation will not operate when outdoor conditions exceed the lockout settings unless you manually call for ventilation or Ventilation Priority (ISU 10125) is set to ASHRAE is Priority and ventilation is needed to meet ASHRAE.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 5. If ASHRAE was selected for ISU 10050, select the Number of Bedrooms and Size of House. See Fig. 257. 6. If ASHRAE was selected for ISU 10050, enter the Equipment Ventilation Rate (CFM). Be sure this setting corresponds with the actual ventilator speed. This setting determines how often the ventilation equipment will operate to meet the ASHRAE 62.2 Standard.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 8. allowing the ventilation equipment to run during a call for humidification 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. 262. If Percent On Time was selected for ISU 10050, select the Ventilation Percent on Time. See Fig. 260.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 4. 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). NOTE: If set up for humidification in heat mode, the ventilator will turn on to remove excess humidity if 10% or more above your humidity setting.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM CUSTOMIZABLE REMINDERS 3. Press Outdoor Temperature and press Next. The thermostat can be set to alert the user when it is time for system maintenance or warranty renewal. You can set up to 10 total Custom Reminders on the thermostat and save them to a USB drive for easy download to multiple thermostats. Custom Reminders include: • Service Reminder — Set up for recurring or one time only.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Fig. 274. Fig. 271. 7. The Fall Service Reminder will look like this on the Home Screen: 4. Type the reminder message, and press Done. Fig. 275. Fig. 272. 5. To create a new custom reminder: 1. 2. Press Add Custom Reminder (see Fig. 266). Press New Custom Reminder and press Next. Press the up or down arrows to set the date when the New Custom Reminder should appear, and press Next. Fig. 276. Fig. 273. 3. 6.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Fig. 280. Fig. 277. 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. USB PORT The thermostat has a USB port that allows you to save various settings to a memory stick and quickly install them on multiple thermostats. You can also use the USB device to upgrade the thermostat software.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 3. Follow the prompts on the screen for the item you selected. • To add information from the USB device to the thermostat, select Load into Thermostat. • To put thermostat information on the USB device, select Save to USB. 3. 4. 5. 6. 7. Load Installer Setup into Thermostat Connect a USB device to your computer. Download the dealer information file to the USB device by clicking the indicated link on the web site.
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).
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Next Fig. 291. Fig. 288. 4. 5. Make selections as prompted on each screen. For more information, see next two pages. Touch Done to save your settings. 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 scheduling after the event. 1. 4.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Set the holiday schedule for Occupied or Unoccupied temperatures, depending whether the building will be in use. 3. Touch or to select the Heat and Cool temperatures, then touch Next to select return date. Next Fig. 298. Fig. 294. 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. 299. Fig. 295. 5.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Touch the or buttons to set the temperature or the Hold Until time. The temperature is maintained until the time you set. Temperature returns to an energysaving level after the timer expires, or the “Occupied” period ends. NOTE: This feature is available only when programmed by the installer. Custom Names The thermostat location (name) can be displayed on the home screen. See the name “OFFICE” in Fig. 303 and 304.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Set Up Remote Setback 1. Select “Remote Setback” as shown in Fig. 305. Fig. 307. 4. Fig. 305. 2. 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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM 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 cooling system may run several hours when it may not be required to maintain indoor comfort. When outdoor conditions are favorable, ventilation with outdoor air can achieve the same level of comfort at lower cost.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Battery Replacement Wireless Indoor Sensor Wireless Outdoor Sensor M32988 MCR32937 M32990 MCR32933 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 red, battery power is critically low and will be depleted within 2–3 weeks. During normal operation, the status light remains off.
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.
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. 313. 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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM REMOTE INDOOR SENSORS For installation, see “Mounting C7189R1004 Wireless Indoor Sensor” on page 68, and “Mounting C7189U1005 Wired Indoor Sensor” on page 69. For wiring, see “Wiring guide — Wired Indoor Sensors” on page 158. Indoor Sensor Operation Temperature Control The thermostat can be set to respond to its internal temperature sensor, or to an optional remote indoor sensor.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM • Critical: Battery power will be depleted in about 2–3 weeks. Status light flashes red. Temperature Display The temperature reading displayed on the home screen is from the sensor or sensors that are being used for temperature control. In Fig. 318, the temperature reading is the average of the thermostat internal sensor and the MAIN LEVEL remote sensor. Fig. 318.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM If you are sensing Humidity from two separate locations (one for humidification and another for dehumidification), you can select which humidity reading to display on the home screen. In Fig. 320, the humidity reading is from the Main Level Remote Sensor based on the setting in ISU. Fig. 320.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Calibration - Outdoor Sensor Table 11. C7089U1006 Sensor Resistance at Outdoor Temperature. (Continued) The C7089U1006 Outdoor Sensor is calibrated at the factory and cannot be recalibrated in the field. Outdoor Temperature Table 11. C7089U1006 Sensor Resistance at Outdoor Temperature. Outdoor Temperature Outdoor Temperature Outdoor Temperature °F °C Ohms of Resistance 25949 106 41.1 5614 24749 108 42.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM BACKUP CONTROL At the Portable Comfort Control 1. This section explains when backup control is used. For example, if batteries in the wireless indoor sensors are depleted. Press and hold the blank space (or arrow) in the lower right hand corner of the screen until the display changes (hold for about 4 seconds). If the Thermostat is Part of the Temperature Average 1. 2. 3.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM At the Portable Comfort Control 1. 2. Press and hold the blank space (or arrow) in the lower right hand corner of the screen until the display changes (hold for about 4 seconds). See Fig. 321. Press REMOVE, then YES to disconnect from the old thermostats. To reconnect the thermostat, go to “Linking RedLINK™ Accessories” beginning on page 16.
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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 14. THX9321 Terminal Designation Descriptions. Conventional System Termina l Heat Pump Termina l Description Description C Common wire from secondary side of cooling transformer (if 2 transformers). C Common wire from secondary side of cooling transformer.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Table 15. Wiring Diagrams by System Type.
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.
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.
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.
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 one transformer.
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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM BOILER END SWITCH ZONE VALVE TR TH TO THERMOSTAT T 2 TRANSFORMER 120 VAC THERMOSTAT/EIM T 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. 333. 2-Wire Zone Valve with end switch.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM THERMOSTAT/EIM TO THERMOSTAT HEAT PUMP FURNACE HEAT PUMP O W1 W2 Y Y2 G R C O/B AUX1 AUX2 L/A 3 O Y Y2 R C PUMP RADIANT HEAT ZONE MODULE VALVE END SWITCH 1 4 TRANSFORMER C R 24 VAC 120 VAC M34525 Fig. 337. 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).
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 W3 W Y G R C L L FURNACE W Y G R C BOILER RELAY 3 T 1 T 1 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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM THERMOSTAT/EIM TO THERMOSTAT CONV W W3 L ZONE 1 W Y G R C RELAY ZONE VALVE 3 TR 1 TH END SWITCH W2 BOILER T 2 T TRANSFORMER 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. 340. Hot water radiant heat with backup forced air heat. Zoned with forced air zone panel and zone valves.
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 L ZONE 1 W Y G R C RELAY W3 W Y G R C 1 L RH 1 FURNACE 3 BOILER RELAY 3 T 1 T 2 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. M31485 Fig. 341.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM THERMOSTAT/EIM TO THERMOSTAT AIR HANDLER HEAT PUMP O W O/B AUX1 AUX2 Y Y2 G R C L/A 4 HEAT PUMP O Y Y2 R C 4 1 2 M31487 Fig. 343. Wood stove with heat pump and backup electric strips. (For applications in which the thermostat only needs to run the blower fan when stove is hot). 1 Select Geothermal Radiant Heat at ISU 2010. Connect Fan to U1, U2, or U3 as shown in the wiring diagram.
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. 344. 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. 345.
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. 350. Connecting a stage of heating or cooling to a universal relay (U1, U2, U3). 1U1, U2, and U3 are normally open dry contacts when set up for a stage of heating or cooling. 2You must install a field jumper if the stage of heating or cooling is powered by the system transformer.
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 Transformer 120 VAC 24 VAC L/A 2 1 R Thermostat/EIM C MCR34808 Fig. 351.
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. 353.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Typical wiring of a W7220 Jade Economizer Module to the Prestige THX9421 thermostat and Equipment Interface Module, configured for economizer control with custom alert. FURNACE, AIR-HANDLER, OR RTU C R W7220 JADE ECONOMIZER AUX2-1 OCC E-GND RELAY REQUIRED EXH1 AUX1-0 A-L/A S1 (OR S2 OR S3 OR S4) S1 (OR S2 OR S3 OR S4) Rc Rh R C EIM Y2-I Y2-O Y1-I Y1-O C R M36797 Fig. 355. Economizer control with custom alert.
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.
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. 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.
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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Zoning and Humidification THERMOSTAT ZONE 4 DAMPER 2 3 CONV W W2 W3 FURNACE EQUIPMENT C R W W2 Y Y2 G R 1 C SENSORS 1 POWER 5 AFS ACCESSORIES 24 V 24 V HUM HUM C GT R RT GF EXT 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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Zoning and Ventilation TrueZONE PANEL 2 FURNACE C R W Y G 1 RH RC W1/E W2 W3 Y1 Y2 G O B DS/BK EQUIPMENT PRESTIGE IAQ EIM ERV/HRV INTERLOCK B AUX W B G R G R 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.
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.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM TROUBLESHOOTING Table 17. Troubleshooting. Symptom Action Screen is blank • Check circuit breaker and reset if necessary. • Make sure power switch at heating & cooling system is on. • Make sure furnace door is closed securely. Screen is difficult to read • To change the screen brightness or color, see backlight options in the Preferences menu (see page 21). • At 2 am each day, thermostats change screen colors for an hour, to prevent burn-in.
THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ WITH EIM Home and Building Technologies In the U.S.: Honeywell 715 Peachtree Street NE Atlanta, GA 30308 customer.honeywell.com ® U.S. Registered Trademark © 2017 Honeywell International Inc. 68-0311—07 M.S. Rev.
