Honeywell THX9421, THX9321 User Manual

THX9321 Prestige® 2.0 and THX9421 Prestige® IAQ 2.0

with EIM

• Delta T Alerts and Diagnostics

Alerts give customers a sense of security while also enabling you to service or replace the equipment prior to a loss of heating or cooling. Based on limits you set at installation, customers can be alerted when their system is not operating as expected. The system alert will instruct customers to contact you for assistance. Requires EIM.

• Delta T Installer Test

Save time by viewing Delta T while running a system test to verify proper operation. Requires EIM.

APPLICATION

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

FEATURES

• RedLINK™ Compatible

Increase your content and profit per job by including RedLINK™ accessories that meet your customers comfort and convenience needs. RedLINK accessories include the Wireless Outdoor Sensor, Portable Comfort Control (PCC), Equipment Interface Module (EIM), RedLINK Internet Gateway, Wireless Indoor Sensor, TrueSTEAM™ humidifier with Wireless Adapter, TrueZONE™ zoning panel with Wireless Adapter, Vent Boost Remote and Entry/Exit Remote.

• Customizable Service Reminders

Set up to 10 service reminders. Choose from the pre-set options or customize your own. Reminders based on date, outdoor temperature or a dry contact input will alert customers with instructions to contact you for assistance.

• Universal Inputs – S1 and S2

Assignable inputs allow you to configure Indoor and Outdoor Temperature Sensors, Discharge and Return Air Sensors or Dry Contact Devices. Dry Contact Devices can be used to trip pre-set or customized alerts on the thermostat home screen. Requires EIM.

• User Interaction Log

The interaction log stores history of thermostat setting changes including temperature, system and installer setup. You can use the interaction log to save time by determining if the issue is a system error or an accidental user error.

• Configurable for Residential and Light Commercial Applications

One thermostat does it all to meet the needs of Residential and Light Commercial applications. Simply select Residential or Commercial during the installer setup. If Commercial is selected, the thermostat will use commercial language, meet building codes and offer 365 day holiday scheduling.

• USB Port for Quick Installer Setup

Save time by using a USB stick to upload installer settings and service reminders in one simple step.

• Selectable Sensors

When paired with a Wireless Indoor Sensor(s) you have the ability to choose which sensor(s) to use for temperature, humidification and dehumidification. They can be used in combination for temperature averaging—or individually—to condition humidity levels in separate spaces.

PRODUCT DATA

68-0311-01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Application ........................................... 1

Specifications ...................................... 3

Ordering Information ........................... 2

System Installation .............................. 6

When Installing this Product... ..................... 6

Installing Equipment Interface Module (if used) 6

Wiring 24 Vac Common ................................ 6

Discharge and Return Air Temperature Sensor

Mounting Locations ...................................... 6

Discharge and Return Air Temperature Sensor Mounting

Locations ............................................................. 6

Return Air Temperature Sensor Mounting Location 7

Selecting Thermostat Location .................... 8

Installing Wallplate ........................................ 8

Install Optional Accessories .............. 9

Power Optional RedLINK™ Accessories .... 9

Link thermostat to EIM or TrueZONE® Wireless

Adapter ........................................................... 10

Link Optional RedLINK™ Accessories ....... 11

Mount Optional Accessories ........................ 13

Alerts and Diagnostics ....................... 50

Delta T Diagnostics ....................................... 50

Before You Set Up Delta T Diagnostics ....... 51

Setting up Alerts and Diagnostics ............... 51

Delta T Alerts ................................................. 54

Delta T Alerts and Utility Saver Switches ... 54

Data Logs ....................................................... 55

Alerts Log ............................................................. 55

User Interactions Log ........................................... 56

Dry Contact Alerts ........................................ 57

Installer Setup ...................................... 14

Set Date and Time ......................................... 49

Fan settings ................................................... 50

System Settings ............................................ 50

Installer Tests ...................................... 48

How to Use the Equipment Test .................. 48

How to Use the Wireless Signal Strength Test 49

Indoor Air Quality (IAQ) Control ......... 64

Humidification ............................................... 64

Set up Humidification ........................................... 64

Control Humidification Level ................................. 66

Dehumidification - Residential ..................... 66

Set up Dehumidification With Cooling System ..... 67

Set up Dehumidification With Whole House Dehumidifier

Set up Dehumidification Away Mode .................... 69

Control Dehumidification Level ............................. 70

Dehumidification - Commercial ................... 70

Set up Dehumidification With Cooling System ..... 71

Set up Dehumidification With Dehumidifier .......... 72

Control Dehumidification Level ............................. 74

Ventilation ...................................................... 74

Set up Ventilation ................................................. 75

IAQ Reminders ..................................... 78

Customizable Reminders ................... 79

USB Port ............................................... 81

Operation ............................................. 82

Residential Operation ................................... 84

Program Schedules .............................................. 84

To adjust program schedules ............................... 84

Program Schedule Override ................................. 85

Utility Scheduling .................................................. 86

System Status Information ................................... 82

Vacation Scheduling ............................................. 85

Commercial Operation .................................. 87

Program Schedules .............................................. 87

Program Schedule Override ................................. 87

Program Override Modes ............................. 88

Holiday/Event Scheduling ..................................... 88

Holiday Override ................................................... 88

Initiate Occupancy mode ...................................... 89

Menu: Preferences ........................................ 82

Menu: Temporary Schedule Changes ......... 85

Menu: Clean Screen ...................................... 82

Menu: Security Settings ............................... 83

Menu: Dealer Information ............................. 83

Advanced Features ....................................... 84

Adaptive Intelligent Recovery (residential use only) 84

Compressor Protection ......................................... 84

Heat Pump and Backup Heat Operation 62

Portable Comfort Control ................... 95

Remote Indoor Sensors ...................... 96

Commercial Features .......................... 87

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 questions, need further information, or would like to comment on our products or services, please write or phone:

1. Your local Honeywell Environmental and Combustion Controls Sales Office (check white pages of your phone directory).

2. Honeywell Customer Care

1885 Douglas Drive North Minneapolis, Minnesota 55422-4386

3. http://customer.honeywell.com or http://customer.honeywell.ca International Sales and Service Offices in all principal cities of the world. Manufacturing in Belgium, Canada, China, Czech Republic, Germany, Hungary, Italy, Mexico, Netherlands, United Kingdom, and United States.

68-0311—01 2

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Ramp Rates .................................................... 89

Custom Names .............................................. 90

Remote Setback ............................................. 90

Economizer and Time of Day (TOD) Operation 91

Pre-Occupancy Purge ................................... 92

Staging Control .............................................. 59

Optional Accessories .......................... 94

Troubleshooting ................................... 124

Wiring ................................................... 102

EIM Wiring Diagrams ..................................... 104

Geothermal Radiant Heat .............................. 62

THX9321 Thermostat Wiring Diagrams ....... 107

THX9321 Thermostat Wiring Diagrams Using Universal Relays to Control Heating or Cooling 108 Wiring guide — IAQ Equipment (EIM or Thermo-

stat) ................................................................. 115

Economizer Module Wiring Diagrams ......... 116

Wiring C7089U1006 Outdoor Sensor ........... 118

Wiring guide — Wired Indoor Sensors ........ 119

Regulatory Information ....................... 124

SPECIFICATIONS

Accessories and Replacement Parts:

Item Part Number

Prestige 2.0 Thermostat THX9321R5030

Prestige IAQ 2.0 Thermostat THX9421R5013

Equipment Interface Module THM5421R1013

Wireless Adapter for TrueSTEAM and Tr ue ZO N E

RedLINK Internet Gateway THM6000R1002

Portable Comfort Control REM5000R1001

Entry / Exit Remote REM1000R1003

Vent Boost Remote HVC20A1000

Occupancy Sensor for Remote Setback WSK-24

Wireless Outdoor Sensor C7089R1013

Wireless Indoor Sensor C7189R1004

Wired Outdoor Sensor (10K ohm NTC Negative Temperature Coefficient)

Wired Wall Mount Indoor Sensor (10K ohm NTC - Negative Temperature Coefficient)

Wired Wall Mount Indoor Sensor (20K ohm NTC - Negative Temperature Coefficient)

Wired Wall Mount Indoor Sensor (10K ohm NTC - Negative Temperature Coefficient)

Wired Flush Mount Indoor Sensor (20K ohm NTC - Negative Temperature Coefficient)

Discharge or Return Air Sensor (10K ohm NTC - Negative Temperature Coefficient)

Discharge or Return Air Sensor (20K ohm NTC - Negative Temperature Coefficient)

Cover Plate (covers marks left by old thermostats)

Battery Pack (for demo use only) THP1000A1007

Wire Saver Module THP9045A1023

* Prestige IAQ 2.0 Kits are packaged with 50062329-001 Dis-

charge and Return Air Sensors. Replacement Discharge/ Return Air Sensor part number is C7735A1000.

THM4000R1000

C7089U1006

C7189U1005

TR21

TR21-A

C7772A1004

C7772A1012

C7735A1000*

C7041

C7770A1006

50028399-001

3 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Thermostat Description:

Feature Description

Powering method • Common wire only

System types (up to 4 heat/2 cool heat pump and up to 3 heat/2 cool conventional)

• Gas, oil or electric heat with air conditioning

• Warm air, hot water, high-efficiency furnaces, heat pumps, steam and gravity

• Cool only

Changeover Manual or Auto changeover selectable

System setting Em Heat-Heat-Off-Cool-Auto

Fan setting Auto-On-Circ-Follow Schedule

Electrical Ratings:

Volt ag e

Ter minal

(50/60 Hz)

W - O/B 18 to 30 VAC and

Max. Current

Rating

1.00A

750 mVDC

Y (cooling) 18 to 30 VAC 1.00A

G (fan) 18 to 30 VAC 0.50A

W2 - Aux 1 (heating) 18 to 30 VAC 0.60A

Y2 (cooling) 18 to 30 VAC 0.60A

W3 - Aux 2 18 to 30 VAC 1.00A

A-L/A (Output) 18 to 30 VAC 1.00A

U1, U1 18 to 30 VAC 0.50A

U2, U2 18 to 30 VAC 0.50A

U3, U3 18 to 30 VAC 0.50A

Power Consumption of THX9421/THX9321:

Full brightness = 3.0 VA 1/2 brightness = 2.1 VA Backlight off = 1.9 VA

Operating Ambient Temperature:

THX9421/THX9321: 32 to 120 °F (0 to 48.9 °C) THM5421R1013: -40 to 165 °F (-40 to 73.9 °C) THM6000R1002: 32 to 120 °F (0 to 48.9 °C) REM5000R1001: 32 to 120 °F (0 to 48.9 °C) REM1000R1003: 32 to 120 °F (0 to 48.9 °C) HVC20A1000: 32 to 120 °F (0 to 48.9 °C) C7089R1013: -40 to 140 °F (-40 to 60 °C) C7089U1006: -40 to 120 °F (-40 to 48.9 °C) C7189R1004: 0 to 120 °F (-17.8 to 48.9 °C)

— For Optimal Battery Life: 35 to 114 °F (1.7 to 45.6 °C) C7189U1005: 45 to 88 °F (7 to 32 °C) C7772A1004: 45 to 99 °F (7 to 37 °C) C7772A1012: 45 to 99 °F (7 to 37 °C) TR21: 45 to 99 °F (7 to 37 °C) TR21-A: 45 to 99 °F (7 to 37 °C) C7735A1000: 0 to 200 °F (-17.8 to 93.3 °C) C7041: C7770A1006: 45 to 99 °F (7 to 37 °C) THP1000A1007: 0 to 130 °F (-17.8 to 54.4 °C) THP9045A1023: -40 to 163 °F (-40 to 73 °C)

Shipping Temperature:

THX9421/THX9321: -20 to 120 °F (-28.9 to 48.9 °C) THM5421R1013: -20 to 165 °F (-28.9 to 73.9 °C) THM6000R1002: -20 to 120 °F (-28.9 to 48.9 °C) REM5000R1001: -20 to 120 °F (-28.9 to 48.9 °C)

REM1000R1003: -20 to 120 °F (-28.9 to 48.9 °C) HVC20A1000: -20 to 120 °F (-28.9 to 48.9 °C) C7089R1013: -40 to 120 °F (-40 to 48.9 °C) C7089U1006: -40 to 130 °F (-40 to 54.4 °C) C7189R1004: -20 to 120 °F (-28.9 to 48.9 °C) C7189U1005: -20 to 120 °F (-28.9 to 48.9 °C) C7772A1004: -40 to 150 °F (-40 to 65.5 °C) C7772A1012: -40 to 150 °F (-40 to 65.5 °C) TR21: -40 to 150 °F (-40 to 65.5 °C) TR21-A: -40 to 150 °F (-40 to 65.5 °C) C7735A1000: -20 to 120 °F (-28.9 to 48.9 °C) C7041: C7770A1006: -40 to 150 °F (-40 to 65.5 °C) THP1000A1007: 0 to 130 °F (-17.8 to 54.4 °C) THP9045A1023: -40 to 185 °F (-40 to 85 °C)

Operating Relative Humidity:

THX9421/THX9321: 5 to 90% non-condensing THM5421R1013: 5 to 95% non-condensing THM6000R1002: 5 to 90% non-condensing REM5000R1001: 5 to 90% non-condensing REM1000R1003: 5 to 90% non-condensing HVC20A1000: 5 to 90% non-condensing C7089R1013: 0 to 100% condensing C7089U1006: 5 to 95% non-condensing C7189R1004: 5 to 90% non-condensing C7189U1005: 5 to 95% non-condensing C7772A1004: 5 to 95% non-condensing C7772A1012: 5 to 95% non-condensing TR21: 5 to 95% non-condensing TR21-A: 5 to 95% non-condensing C7770A1006: 5 to 95% non-condensing THP1000A1007: 5 to 90% non-condensing THP9045A1023: 5 to 90% non-condensing

Temperature Setting Range:

Heating: 40 to 90 °F (4.5 to 32 °C). Cooling: 50 to 99 °F (10 to 37 °C).

Humidification Setting Range:

10% to 60% RH.

Dehumidification Setting Range:

40% to 80% RH.

Humidity Display Range:

0% to 99%.

Cool Indication:

Prestige 2.0 and Prestige IAQ 2.0 displays “Cool On” when the

thermostat turns the cooling on.

Heat Indication:

Prestige 2.0 and Prestige IAQ 2.0 displays “Heat On” when the

thermostat turns the heating on.

Auxiliary Heat Indication:

Prestige 2.0 and Prestige IAQ 2.0 displays “Auxiliary Heat On”

when the thermostat turns the auxiliary heat on.

Interstage Differential:

Comfort: The thermostat keeps the indoor temperature within 1

degree of the setpoint (droop less control). The thermostat turns on stage 2 when the capacity on stage 1 reaches 90%.

When the interstage differential is set to 1.0 or higher, the ther-

mostat stages the equipment based on how far the indoor temperature is from the setpoint (ISU 3030 to 3090). See page 21 for more information.

68-0311—01 4

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

M33329

6-51/64 (173)

3-19/64 (84)

1-13/32

(36)

3-29/32

(99)

Clock Accuracy: ± 1 minute per month at 77 °F (25 °C). ± 2

minutes per month over the operating ambient temperature range.

Color/Finish:

THX9421/THX9321: Arctic White THM5421R1013: Gray THM6000R1002: Black REM5000R1001: Arctic White / Gray REM1000R1003: Arctic White HVC20A1000: Arctic White C7089R1013: Gray C7189R1004: Arctic White C7189U1005: Premier White C7772A1004: Brushed Stainless Steel C7772A1012: Brushed Stainless Steel TR21: White TR21-A: White C7735A1000: Gray 50028399-001: Arctic White THP1000A1007: Gray THP9045A1023: Gray

Mounting Means:

Thermostat mounts directly on the wall in the living space

using mounting screws and anchors provided. Fits a horizontal 2 x 4 in. junction box.

Equipment Interface Module (EIM) mounts on HVAC equip-

ment or on a wall in the equipment room.

C7735A1000: Probe: 3-3/4 x 1/4 inches

(77 x 6.4 mm)

C7735A1000: Cap Diameter: 2-7/16 inches

(62 mm)

C7041: 4-3/16 x 2-5/16 x 1-11/16 inches

(107 x 59 x 43 mm)

C7770A1006: Probe: 6 x 1/4 inches

(152 mm x 6.4 mm)

50028399-001: 5-1/2 x 7-7/8

(141 x 201 mm)

THP1000A1007: 6-1/2 x 3-11/16 x 1-1/8 inches

(165 x 93.5 x 29 mm)

THP9045A1023: 2-7/8 x 3-3/8 x 15/16 inches

(73 x 86 x 23 mm)

Dimensions:

THX9421 / THX9321: 3-7/8 x 6-13/16 x 1-7/16 inches

(99 x 173 x 36 mm)

THM5421R1013: 9-5/16 x 4-13/16 x 1-19/32 inches

(237 x 122 x 40.5 mm)

THM6000R1002: 6 x 4-7/8 x 2-1/2 inches

(152 x 124 x 64 mm)

REM5000R1001: 6-1/4 x 3-1/8 x 1-5/8 inches

(158 x 80 x 38 mm)

REM1000R1003: 3-15/16 x 1-15/16 x 5/8 inches

(101 x 50 x 16 mm)

HVC20A1000: 3-15/16 x 1-15/16 x 5/8 inches

(101 x 50 x 16 mm)

C7089R1013: 5 x 3-1/2 x 1-11/16 inches

(127 x 89 x 43 mm)

C7089U1006 (mounting clip): 1-1/2 inches

(38 mm)

C7189R1004: 2-7/8 x 1-7/8 x 15/16 inches

(74 x 48 x24 mm)

C7189U1005: 2-9/32 x 1-1/2 x 11/16 inches

(58 x 38 x 18 mm)

C7772A1004: 4-1/2 x 2-3/4 x 5/16 inches

(114 x 70 x 8 mm)

C7772A1012: 4-1/2 x 2-3/4 x 5/16 inches

(114 x 70 x 8 mm)

TR21:4-9/16 x 3 x 7/8 inches

(116 x 76.5 x 22 mm)

TR21-A: 4-9/16 x 3 x 7/8 inches

(116 x 76.5 x 22 mm)

Fig. 1. Dimensions of thermostat in in. (mm).

7-29/32 (201)

3-19/64 (84)

5-1/2 (140)

M33330

Fig. 2. Dimensions of Prestige cover plate in in. (mm).

5 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

CAUTION

MCR32388

9-11/32

(237)

1-19/32

(41)

M33331

4-53/64 (123)

8-7/8 (225)

Fig. 3. Dimensions of Equipment Interface Module in in.

(mm).

SYSTEM INSTALLATION

When Installing this Product...

1. Read these instructions carefully. Failure to follow the

instructions can damage the product or cause a hazardous condition.

2. Check the ratings given in the instructions to make sure the product is suitable for your application.

3. Installer must be a trained, experienced service technician.

4. After completing installation, use these instructions to verify the product operation.

Installing Equipment Interface Module (if used)

If no Equipment Interface Module is used, skip to “Selecting Thermostat Location” beginning on page 8.

Electrical Hazard. Can cause electrical shock or equipment damage.

Disconnect power before wiring.

The Equipment Interface Module (EIM) can be mounted vertically on the HVAC equipment or on a wall in the equipment room.

1. Use screws & anchors as appropriate for the mounting surface. Mount the EIM near the HVAC equipment, or on the equipment itself.

2. To wire the EIM, strip 1/4” insulation, then insert wires (see Fig. 4). For wiring diagrams, see “Wiring” beginning on page 102.

O/B

AUX1

AUX2

MCR32389

Fig. 4.

Wiring 24 Vac Common

• Single-Transformer System—Connect the common side of the transformer to the C screw terminal of the EIM. Leave the metal jumper wires in place between R, Rc, and RH.

• Two-Transformer System—Connect the common side of the cooling transformer to the C screw terminal of the EIM. Remove the metal jumper wire between Rc and Rh. Connect the hot side of heating transformer to Rh and leave the jumper wire between R and Rc and connect the hot side of cooling transformer to R or Rc.

Discharge and Return Air Temperature Sensor Mounting Locations

Refer to the guidelines below and Fig. 5–9 for mounting locations of the Discharge and Return Air Temperature Sensors.

Discharge Air Temperature Sensor Mounting Location

1. Mount the Discharge Air Temperature Sensor on the

supply duct in a location where the air is mixed well. Mount the Discharge Air Temperature Sensor out of sight of the A-Coil/Heat Exchanger when possible. See Fig. 5.

2. When possible, mount the Discharge Air Temperature Sensor upstream of a Steam Humidifier, a Fan Powered Humidifier or a Dehumidifier that is ducted to the supply. See Fig. 6–7.

3. If space does not allow a Discharge Air Temperature Sensor upstream of a Steam Humidifier or Fan Powered Humidifier, mount the Discharge Air Temperature Sensor downstream of the Humidifier. See Fig. 6. When setting the Delta T Limits (see “Set Delta T Limits” on page 53), be sure to consider the affect that the humidifier has on Delta T.

4. If a Bypass Humidifier is installed, mount the Discharge Air Temperature Sensor downstream of the Bypass Humidifier. See Fig. 8–9.

68-0311—01 6

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

MOUNT DISCHARGE SENSOR HERE

M33074

HEAT

EXCHANGER

BLOWER

VENTILATOR

DEHUMIDIF IER

MOUNT RETURN SENSOR HERE

DOWNSTREAM OF VENTILATOR OR DEHUMIDIFIER

A-COIL

MOUNT RETURN SENSOR HERE

MOUNT DOWNSTREAM OF BYPASS HUMIDIFIER, DEHUMIDIFIER OR VENTILATOR

HEAT

EXCHANGER

BLOWER

VENTILATOR

DEHUMIDIF IER

MOUNT DISCHARGE SENSOR HERE

MOUNT DOWNSTREAM OF BYPASS HUMIDIFIER

BYPASS

HUMIDIFIER

M33078A

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 Humidifier, Dehumidifier or Ventilator. See Fig. 5–9.

ALTERNATE MOUNTING LOCATION FOR DISCHARGE SENSOR. WHEN SETTING THE LIMITS, BE SURE TO CONSIDER THE AFFECT THAT THE DEHUMIDIFIER HAS ON DELTA T.

DEHUMIDIF IER

MOUNT RETURN SENSOR HERE

DOWNSTREAM OF DEHUMIDIFIER

HEAT

EXCHANGER

BLOWER

MOUNT DISCHARGE SENSOR HERE

ABOVE CENTER OF A-COIL

UPSTREAM OF DEHUMIDIFIER

M33076A

ALTERNATE MOUNTING LOCATION FOR DISCHARGE SENSOR. WHEN SETTING THE LIMITS, BE SURE TO CONSIDER THE AFFECT THAT THE HUMIDIFIER HAS ON DELTA T.

VENTILATOR

DEHUMIDIF IER

MOUNT RETURN SENSOR HERE

DOWNSTREAM OF VENTILATOR OR DEHUMIDIFIER

Fig. 5.

Fig. 6.

STEAM OR

FAN

POWERED

HUMIDIFIER

HEAT

EXCHANGER

BLOWER

MOUNT DISCHARGE SENSOR HERE

ABOVE CENTER OF A-COIL

UPSTREAM OF STEAM OR FAN POWERED HUMIDIFIER

M33075A

Fig. 7.

Fig. 8.

7 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

CAUTION

MOUNT RETURN SENSOR HERE

MOUNT DOWNSTREAM OF BYPASS HUMIDIFIER, DEHUMIDIFIER OR VENTILATOR

HEAT

EXCHANGER

BLOWER

VENTILATOR

DEHUMIDIF IER

MOUNT DISCHARGE SENSOR HERE

BYPASS

HUMIDIFIER

M33079A

M32995

5 FEET

[1.5 METERS]

YES

M19925

MCR29241

MCR32386

Do not install the thermostat where it can be affected by:

Fig. 9.

— Drafts or dead spots behind doors and in corners. — Hot or cold air from ducts. — Radiant heat from sun or appliances.

INSTALLATION

Use the following steps to mount the Discharge/Return Air Sensors:

1. Attach plastic cover to the sensor probe.

— Concealed pipes and chimneys. — Unheated (uncooled) areas such as an outside wall behind

the thermostat.

Installing Wallplate

2. Drill 1/4-inch hole for the sensor probe and mount it to

the ductwork with enclosed screws (see Fig. 10).

3. Connect wires to S1 or S2 terminals at the EIM.

4. Configure the S1 or S2 terminals in the Installer Setup at

the thermostat.

Fig. 11. Selecting thermostat location.

Electrical Hazard. Can cause electrical shock or equipment damage.

Disconnect power before wiring.

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. 11.

68-0311—01 8

Fig. 10. Mounting Discharge/Return Air Sensor.

The thermostat can be mounted horizontally on the wall or on a 4 in. x 2 in. (101.6 mm x 50.8 mm) wiring box.

1. Position and level the wallplate (for appearance only).

2. Use a pencil to mark the mounting holes.

3. 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.

4. Position the wallplate over the holes, pulling wires through the wiring opening. See Fig. 12.

5. Insert the mounting screws into the holes and tighten.

Fig. 12. Mounting wallplate.

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

MCR32387

MCR32938

THX9421 Installation

INSTALLATION WITH EQUIPMENT INTERFACE MODULE (EIM)

1. Wire to C and R terminals of the EIM or to a separate 24

volt transformer (not provided). See Fig. 13.

2. Snap thermostat onto wallplate after wiring is complete.

INSTALLATION WITH TRUEZONE WIRELESS ADAPTER

1. Wire to C and R terminals of the TrueZONE panel or to a

separate 24 volt transformer (not provided). See Fig. 13.

2. Snap thermostat onto wallplate after wiring is complete.

THX9321 Installation

THERMOSTAT WIRED DIRECTLY TO THE HVAC EQUIPMENT OR ZONE PANEL

1. Refer to “THX9321 Thermostat Wiring Diagrams” begin-

ning on page 107.

2. Snap thermostat onto wallplate after wiring is complete.

INSTALLATION WITH EQUIPMENT INTERFACE MODULE (EIM)

1. Wire to C and R terminals of the EIM or to a separate 24

volt transformer (not provided). See Fig. 13.

2. Snap thermostat onto wallplate after wiring is complete.

NOTE: Note: When the THX9321 thermostat is used with

an EIM, the relays in the thermostat do not function.

INSTALLATION WITH TRUEZONE WIRELESS ADAPTER

1. Wire to C and R terminals of the TrueZONE panel or to a

separate 24 volt transformer (not provided). See Fig. 13.

2. Snap thermostat onto wallplate after wiring is complete.

NOTE: When the THX9321 thermostat is used with a

TrueZONE Wireless Adapter, the relays in the thermostat do not function.

INSTALL OPTIONAL ACCESSORIES

Power Optional RedLINK™ Accessories

1. If no wireless accessories are used, skip to “Link thermo-

stat to EIM or TrueZONE® Wireless Adapter” beginning on page 10.

2. If no wireless accessories are used and there is no EIM or TrueZONE Wireless Adapter, skip to “Installer Setup” beginning on page 14.

3. Install batteries in the wireless accessories.

Outdoor air sensor

1. Install 2 fresh AA lithium batteries.

MCR32937

Fig. 14.

Portable Comfort Control

1. Install 3 fresh AA alkaline batteries.

Fig. 13. Inserting wires in thermostat terminal block.

MCR32939

Fig. 15.

Indoor air sensor

1. Install 2 fresh AAA alkaline batteries.

Fig. 16.

9 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

M32940

THM4000R1000

TrueSTEAM

MCR31476

543

OFF

MCR33269

RedLINK™ Internet Gateway

1. Connect power cord to an electrical outlet not controlled

by a wall switch.

2. Connect ethernet cable to router and the RedLINK Internet Gateway.

Fig. 17.

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

• DIP5: DOWN

Entry/Exit Remote or Vent Boost Remote

1. Remove the cover.

2. Insert the CR2450 coin cell battery (included) into the

slot at the bottom of the remote. See polarity marking on the remote.

Fig. 19. Installing Entry/Exit Remote or Vent Boost Remote

battery.

3. The LED will briefly flash green. If it flashes red, battery

is not good.

Link thermostat to EIM or TrueZONE® Wireless Adapter

If no EIM or TrueZONE® Wireless Adapter are used, skip to “Link Optional RedLINK™ Accessories” beginning on page 11.

1. Press and release the CONNECT button at the EIM or Wireless Adapter, and make sure the “Connected” light is flashing green.

Fig. 18. Powering TrueSTEAM wireless adapter.

CONNECTED

CONNECT

S2 S2 S1 S1

MCR32941

Fig. 20. EIM CONNECT button.

2. If the “Connected” light does not flash, make sure no

other RedLINK devices are in Wireless Setup mode, then try again.

NOTE: If the “Power” light at the Wireless Adapter does

not turn on, consult the TrueZONE manual for help.

3. While the “Connected” light is flashing, follow the prompts on the thermostat screen until you reach the Wireless Setup screen.

4. Press NEXT to link the thermostat. After a brief delay, the screen will display “Device Connected.”

68-0311—01 10

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

MCR28847A

NOYES

CONNECT MORE?

M28482

Fig. 21.

NOTE: If the thermostat did not connect to the EIM or

Wireless Adapter, verify the “Connected” LED is still flashing and the thermostat is at least 2 feet away from the EIM or Wireless Adapter, and repeat steps 1–4 above.

press MENU > EQUIPMENT STATUS to find the date code. Scroll down to WIRELESS DEVICE MANAGER and then select ADD DEVICE.

Link Wireless Outdoor Sensor

1. Press and release the CONNECT button. After a short

delay, the thermostat will display “Wireless Outdoor Sensor added” on the Add Device screen.

“Connected” Status Light (Fig. 20)

• Green flashing: In Wireless Setup mode.

• Green steady: RedLINK device(s) are communicating.

• Red: RedLINK device(s) not communicating. Check EIM and RedLINK devices.

Link Optional RedLINK™ Accessories

NOTE: If you are not connecting any RedLINK devices,

skip to “Installer Setup” beginning on page 14.

1. While the Add Device screen (see Fig. 22) is displayed

on the thermostat, press and release the CONNECT button on each wireless device. Accessories need to be at least 2 feet away from the thermostat, EIM, or TrueZONE Wireless Adapter during the linking process.

Fig. 23. Wireless outdoor sensor connect button.

Link Portable Comfort Control

1. Press CONNECT on the Portable Comfort Control dis-

play screen.

CONNECT

WIRELESS SETUP

MCR32942

Fig. 24. Portable Comfort Control connect button.

2. Press DONE on the Portable Comfort Control when it

displays “Connected.”

3. Press “No” at the next screen to save and exit, or press “Yes” if you need to connect additional thermostats to the Portable Comfort Control. See Fig. 25.

NOTE: The Portable Comfort Control can control up to 16

thermostats.

2. Press DONE on the Add Device screen after ALL

devices have been linked (see Fig. 22).

NOTE: If you need to return to the “Add Device” screen

Fig. 22. Add Device screen.

to add devices later, press MENU and scroll down to INSTALLER OPTIONS. Enter the date code (password) when prompted. The date code is printed on the back of the thermostat or

Fig. 25. Connect additional thermostats to Portable

Comfort Control.

4. Follow the same linking procedure as above to connect

additional thermostats.

11 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Press and hold the blank space (or arrow may be present)

MCR32943

MCR32934

MCR32935

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).

NOTE: The linking procedure will time out if there is no

keypress for 30 minutes. To begin again, press and hold in the lower right corner of the screen until the display changes (about 3 seconds). See Fig. 26.

Fig. 26. Restarting the linking process.

Link TrueSTEAM

1. Press and release the CONNECT button on THM4000

Wireless Adapter. After a short delay, the CONNECTED status light will glow steady green.

Link Wireless Indoor Sensor

1. Press and release the CONNECT button. After a short

delay, the status light (see Fig. 25) will glow green for 15 seconds. If the status light turns red, the sensor did not link with the thermostat.

Fig. 28. Wireless indoor sensor connect button and status

light.

NOTE: In normal operation, the status light remains off.

If it begins flashing red, batteries are low (power will be depleted after 2–3 weeks).

2. If you are installing more than 1 wireless indoor sensor, give each sensor a name as you install it. Press Name Device, as shown in Fig. 29.

Link RedLINK Internet Gateway

1. Press and release the button on the bottom of the Inter-

net Gateway. After a short delay, the RedLINK status light will glow steady green.

Fig. 27. RedLINK Internet Gateway connect button.

NOTE: The Internet Gateway must be registered online

before use at www.mytotalconnectcomfort.com. Enter the MAC ID and MAC CRC numbers located on the bottom of the Internet Gateway. For additional information, see instructions provided with the device.

Fig. 29.

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.

68-0311—01 12

Fig. 30.

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

M28849A

M7514

NOTE: If you link more than 1 wireless indoor sensor,

and forget to name them, you will be prompted to name each wireless indoor sensor after you exit wireless setup. See Fig. 31.

Fig. 31.

Link Entry/Exit Remote or Vent Boost Remote

1. Press and release CONNECT button.

• where snow, ice or debris can cover it.

MOUNTING C7089R1013 WIRELESS OUTDOOR SENSOR

Use the following steps to mount the sensor (see Fig. 33):

1. Mount the sensor on a vertical exterior wall, at least 6 inches below any overhang. Choose a location protected from direct sunlight.

2. Place sensor securely in bracket, facing away from wall.

M28491

MCR33096

Fig. 32. Connect button and status light on Entry/Exit

Remote or Vent Boost Remote.

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. Each Entry/Exit remote can control up to 16 thermostats.

NOTE: The thermostat can work with up to 6 Vent Boost

remotes.

Mount 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 between C7089U1006 and EIM is less than 200 feet (wired sensor only).

Fig. 33. Mounting Outdoor Sensor.

MOUNTING C7089U1006 WIRED OUTDOOR TEMPERATURE 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 118.

Do not mount the sensor:

• in direct sunlight.

• where hot or cold air blows on the sensor. Discharge line from an outdoor compressor unit, vent or fan causes inaccurate temperature readings.

Fig. 34. Typical locations for C7089U1006 Outdoor Sensor.

13 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

M32936

M24056

M33095

Mounting C7189R1004 Wireless Indoor Sensor

Use the following steps to mount the sensor (see Fig. 35):

1. Remove the wallplate and mount it 4 to 6 feet above the floor on an interior wall. Drill 3/16-inch holes for drywall, 7/32-inch for plaster.

2. Attach sensor securely to wallplate as shown.

6. Replace the cover on the remote sensor.

7. When you finish linking wireless devices, the thermostat

M24057

Fig. 37. Mount wallplate to wall.

automatically enters Installer Setup. See “Installer Setup” beginning on page 14.

Fig. 35. Mounting Indoor Sensor.

Mounting C7189U1005 Wired Indoor Sensor

Use the following steps to mount the sensor:

1. Remove the cover from the remote sensor (see Fig. 36).

Fig. 36. Remove the cover.

2. Pull wires through wire hole.

3. Position wallplate on wall, level and mark screw hole

positions with pencil.

4. Drill holes at marked positions, then tap in supplied wall anchors.

5. Place wallplate over anchors, insert and tighten mounting screws (see Fig. 37).

Mounting Entry/Exit Remote or Vent Boost Remote

Mounting the remote is optional.

1. Remove the front cover from the remote.

2. Use provided screws and wall anchors to fasten the

remote to the wall. Drill 3/16-inch holes for drywall, 7/32inch for plaster.

Fig. 38. Mounting Entry/Exit Remote or Vent Boost

Remote.

3. Replace the cover on the remote.

INSTALLER SETUP

When you finish linking wireless devices, the thermostat automatically enters Installer Setup. The steps below explain how to enter Installer Setup from the Home screen.

68-0311—01 14

To set up the thermostat, press MENU and scroll down to INSTALLER OPTIONS. Enter the date code (password) when prompted. The date code is printed on the back of the thermostat or press MENU > EQUIPMENT STATUS to find the date code.

1. Press CREATE SETUP to set all system settings one by one.

2. Press VIEW/EDIT CURRENT SETUP to select a specific function and make quick changes.

Fig. 39. Installer Options screen.

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 1. 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. Minimum off timers are ignored during the test

Data Logs Press DATA LOGS to view the Alerts Log

and User Interactions Log.

Wireless Device Manager

Advanced Options

Press WIRELESS DEVICE MANAGER to add or remove wireless accessories

Press ADVANCED OPTIONS to setup the thermostat using a USB device or to restore the thermostat to the factory default settings.

NOTE: You can use the thermostat USB port to download

all Installer Setup settings, including your company name and contact information. You can upload this data to each thermostat you install, to save time.

Table 2. Installer Setup (ISU) Table.

ISU

Number Installer Setup Name Settings Default

1000 Language English

Français Español

1010 Application Residential

Commercial

1020 Zone Number 1-16 1 Both No This ISU is only displayed on a thermostat that is

1030 Device Name [Enter Device Name] Thermostat Both No The Portable Comfort Control remote and Web

1030 Display on Home

1040 Scheduling Options Non-Programmable

1050 Temperature

Screen

Indication Scale

No Yes (select check box)

Programmable

Fahrenheit Celsius

English Both No

Residential Both No

No Commercial No Thermostat location (name) can be displayed on the

Programmable Both No

Fahrenheit Both No

Residential, Commercial

or Both

Requires

EIM Notes

controlling a zone panel through the THM4000 Wireless Adapter.

Interface displays the name of the thermostat that you enter on this screen.

home screen. This feature is typically used when multiple thermostat's are mounted in a manager's office or equipment room. This allows you to quickly identify which thermostat is in control of a specific zone or area.

15 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

1060 Outdoor Air Sensor No

Yes

2000 Heating System Type Conventional Forced Air Heat

Heat Pump Radiant Heat Other None (Cool Only)

2010 Heating Equipment

Type

Conventional Forced Air Heat:

Standard Efficiency Gas Forced Air High Efficiency Gas Forced Air Oil Forced Air Electric Forced Air Hot Water Fan Coil Other

No Both No This ISU automatically defaults to Yes when a

Conventional Forced Air Heat

Default varies based on previous selections

Residential, Commercial

or Both

Both No

Both No Cycle Rate and Fan Operation automatically default

Requires

EIM Notes

Wireless Outdoor Sensor is connected.

An Outdoor Sensor is required to set the following ISUs: ISU 3120 Outdoor Temperature Lockouts (Compressor Lockout and Backup Heat Lockout) ISU 4050 Outdoor Temperature used with Minimum Heat Recovery Ramp Rate ISU 4060 Outdoor Temperature used with Maximum Heat Recovery Ramp Rate ISU 4070 Outdoor Temperature used with Minimum Cool Recovery Ramp Rate ISU 4080 Outdoor Temperature used with Maximum Cool Recovery Ramp Rate ISU 8050 Humidification - Window Protection ISU 10130 Ventilation Low Temperature Lockout ISU 10130 Ventilation High Temperature Lockout ISU 10130 Ventilation High Dew Point Lockout (requires Wireless Outdoor Sensor) ISU 13070 Allow Heat Delta T Diagnostics when Outdoor Temperature is [Out. Temp. Range] ISU 13080 Allow Heat Delta T Diagnostics when Outdoor Humidity is [Out. Humidity Range] ISU 13110 Allow Backup Heat Delta T Diag. when Outdoor Temperature is [Out. Temp. Range] ISU 13120 Allow Backup Heat Delta T Diagnostics when Outdoor Humidity is [Out. Humidity Range] ISU 13150 Allow Cool Delta T Diagnostics when Outdoor Temperature is [Out. Temp. Range] ISU 13160 Allow Cool Delta T Diagnostics when Outdoor Temperature is [Out. Humidity Range]

to the correct settings based on the equipment type selected.

This ISU is not displayed when ISU 2000 Heating System Type is set to None (Cool Only).

See “Geothermal Radiant Heat” beginning on page 62.

Heat Pump:

Air to Air Heat Pump Geothermal Heat Pump Geothermal Radiant Heat

Radiant Heat:

Hot Water Radiant Heat Geothermal Radiant Heat Steam Other

Other:

Gravity Other

68-0311—01 16

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

2030 What Terminals are

2040 What Terminals are

2050 Geothermal Forced

2060 Reversing Valve O/B O (O/B on Cool)

2070 Cool Stages /

2020, 2070

Wired to Radiant Heat?

Wired to Radiant Heat

- Stage 2?

Air System

Compressor Stages

Heat Stages / Backup Heat Stages

None U1 U2 U3

None Used for Cooling Only Used for Heating and Cooling

B (O/B on Heat)

1-4 1 if ISU 1010 is

1 - 3 Default is 1 stage

Default varies based on previous selections

Used for Heating and Cooling

O/B on Cool Both No Only displayed if the equipment type is Air to Air

Residential

2 if ISU 1010 is Commercial

if ISU 1010 Application is Residential

Default is 2 stages if ISU 1010 Application is Commercial

Residential, Commercial

or Both

Both No This ISU is only displayed when ISU 2010 Heating

Both No This thermostat has the capability of controlling

Both No Conventional:

Both No Maximum of 3 Heat Stages for conventional

Requires

EIM Notes

Equipment Type is Geothermal Radiant Heat.

Geothermal Radiant Heat must be wired to a universal terminal (U1, U2, or U3).

U1, U2 and U3 are normally open dry contacts when configured for a stage of Heat. U1, U2 and U3 require power from the system transformer or a separate transformer.

U3 is only available on the Equipment Interface Module (EIM).

Equipment Type is Geothermal Radiant Heat.

Geothermal Radiant Heat must be wired to a universal terminal (U1, U2, or U3).

U1, U2 and U3 are normally open dry contacts when configured for a stage of Heat. U1, U2 and U3 require power from the system transformer or a separate transformer.

U3 is only available on the Equipment Interface Module (EIM).

Geothermal Radiant Heat, Geothermal Forced Air and Backup Heat.

If this thermostat is not controlling the Geothermal Forced Air System, select None. This setting is typically used if the thermostat is only controlling Geothermal Radiant Heat.

If this thermostat is using the Geothermal Forced Air System for cooling and not for heating, select Used for Cooling Only.

If this thermostat is using the Geothermal Forced Air System for both heating and cooling, select Used for Heating and Cooling.

Heat Pump, Geothermal Heat Pump or Geothermal Radiant Heat.

Cool Stage 3 and 4 are only available if ISU 1010 is Commercial.

Cool Stage 3 and 4 must be wired to a universal terminal (U1, U2 or U3).

Heat Pumps:

Maximum of 2 Compressor Stages for heat pump systems.

systems.

Maximum of 2 Backup Heat Stages for systems with more than 1 heating equipment type.

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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

2080 What Terminals are

2090 What Terminals are

2100 What Terminals are

2110 Fan Operation in Heat No Fan

2120 Backup Heat Type None

2130 Backup Heat Stages 0 - 2 1 Both No This ISU is only displayed when a backup heat

Wired to Cool - Stage 3?

Wired to Cool - Stage 4?

Wired to Heat - Stage 3?

None U1 U2 U3

Equipment Controls Fan Thermostat Controls Fan

Standard Efficiency Gas Forced Air High Efficiency Gas Forced Air Oil Forced Air Electric Forced Air Hot Water Fan Coil Hot Water Radiant Heat Other

Default varies based on previous selections

Thermostat Controls Fan

None Both No This ISU is only displayed when ISU 2010 Heating

Residential, Commercial

or Both

Commercial No Cool Stage 3 is only available if ISU 1010 is

Commercial No Cool Stage 4 is only available if ISU 1010 is

Both No THX9321 Thermostat Only:

Both No This ISU is only displayed when ISU 2010 Heating

Requires

EIM Notes

Commercial.

Cool Stage 3 must be wired to a universal terminal (U1, U2 or U3).

U1, U2 and U3 are normally open dry contacts when configured for a stage of Cool. U1, U2 and U3 require power from a system transformer or a separate transformer.

U3 is only available on the Equipment Interface Module (EIM).

Commercial.

Cool Stage 4 must be wired to a universal terminal (U1, U2 or U3).

U1, U2 and U3 are normally open dry contacts when configured for a stage of Cool. U1, U2 and U3 require power from a system transformer or a separate transformer.

U3 is only available on the Equipment Interface Module (EIM).

This ISU is only displayed on the THX9321 thermostat when it is wired directly to the equipment (Equipment Interface Module is NOT used).

Heat Stage 3 must be wired to a universal terminal (U1 or U2).

U1 and U2 are normally open dry contacts when configured for a stage of Heat. U1 and U2 require power from a system transformer or a separate transformer.

Equipment Type is Electric Forced Air, Hot Water Fan Coil or Other.

The thermostat automatically defaults to Equipment Controls Fan when ISU 2010 Heating Equipment Type is Standard Efficiency Gas Forced Air, High

Efficiency Gas Forced Air or Oil Forced Air.

No Fan is only displayed when ISU 2010 Heating

Equipment Type is Other.

Equipment Type is Hot Water Radiant Heat,

Steam, Hot Water Fan Coil, Electric Forced Air or Other.

The list of Backup Heat Types will vary based on the type of primary heat selected at ISU 2010 Heating Equipment Type.

When ISU 2010 Heating Equipment Type is Hot Water Radiant Heat, the thermostat keeps the Hot Water Radiant Heat on when it calls for Backup Heat.

When ISU 2010 Heating Equipment Type is Steam, the thermostat keeps the Steam Heat on when it calls for Backup Heat.

When ISU 2010 Heating Equipment Type is Hot Water Fan Coil, Electric Forced Air or Other, you can select how the backup operates. See ISU 2150 Backup Heat Operation.

source is selected at ISU 2120 Backup Heat Type.

Maximum of 2 Backup Heat stages.

68-0311—01 18

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

2140 What Terminals are

2150 Backup Heat

2160 Backup Heat Fan

2170 What Terminals are

2180 Backup Heat Type Electric Forced Air

Wired to Backup Heat?

Operation

Wired to Backup Heat

- Stage 2?

None U1 U2

NOT Allowed to Run with Primary Heat

Allowed to Run with Primary Heat

No Fan Equipment Controls Fan Thermostat Controls Fan

None U1 U2

Standard Efficiency Gas Forced Air High Efficiency Gas Forced Air Oil Forced Air Hot Water Fan Coil Hot Water Radiant Heat Other

Default varies based on previous selections

NOT allowed to run with Primary Heat

Thermostat Controls Fan

Default varies based on previous selections

Electric Forced Air

Residential, Commercial

or Both

Both No THX9321 Thermostat Only:

Both No This ISU is only displayed when ISU 2010 Heating

Both No This ISU is only displayed for conventional systems

Both No THX9321 Thermostat Only:

Both No This ISU is only displayed when ISU 2010 Heating

Requires

EIM Notes

This ISU is only displayed on the THX9321 thermostat when it is wired directly to the equipment (Equipment Interface Module is NOT used).

The thermostat can support up to 3 conventional heat stages. When there are a total of 3 conventional heat stages, the last stage of heat must be wired to U1 or U2.

U1 and U2 are normally open dry contacts when configured for a stage of Heat. U1 and U2 require power from a system transformer or a separate transformer.

Equipment Type is Hot Water Fan Coil, Electric

Forced Air or Other.

When ISU 2010 Heating Equipment Type is Hot Water Fan Coil, Electric Forced Air or Other, you

can select how the Backup Heat operates. The thermostat can be setup to keep the primary heat source on when it calls for Backup Heat or the thermostat can be setup to turn off the primary heat source when it calls for Backup Heat.

When ISU 2010 Heating Equipment Type is Hot Water Radiant Heat, the thermostat keeps the Hot Water Radiant Heat on when it calls for Backup Heat.

When ISU 2010 Heating Equipment Type is Steam, the thermostat keeps the Steam Heat on when it calls for Backup Heat.

when ISU 2120 Backup Heat Type is Electric Forced Air, Hot Water Fan Coil or Other.

Backup Heat Fan Operation automatically defaults to Equipment Controls Fan when ISU 2120 Backup Heat Type is Standard Efficiency Gas Forced Air,

High Efficiency Gas Forced Air or Oil Forced Air.

No Fan is only displayed when ISU 2120 Backup

Heat Type is Other.

This ISU is only displayed on the THX9321 thermostat when it is wired directly to the equipment (Equipment Interface Module is NOT used).

The thermostat can support up to 2 backup heat stages for heat pump applications. When there are 2 backup heat stages, backup heat stage 2 must be wired to U1 or U2.

U1 and U2 are normally open dry contacts when configured for a stage of Heat. U1 and U2 require power from a system transformer or a separate transformer.

Equipment Type is Air to Air Heat Pump,

Geothermal Heat Pump or Geothermal Radiant Heat and there is at least one stage of backup heat.

See “Heat Pump and Backup Heat Operation” beginning on page 62.

19 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

2190 External Fossil Fuel

2200 Backup Heat

2210 Backup Heat Fan

2220 A-L/A Terminal Setup None

3000 Changeover Manual

Kit

Operation

Thermostat Controls Backup Heat External Fossil Fuel Kit Controls

Backup Heat

NOT allowed to Run with Heat Pump

Allowed to Run with Heat Pump

No Fan Equipment Controls Fan Thermostat Controls Fan

Time Of Day Economizer Heat Pump Failure Indication

Automatic

Thermostat Controls Backup Heat

Default varies based on previous selections

None Commercial No This ISU is only displayed when ISU 1010

Manual:

if ISU 1010 is Residential

Automatic:

if ISU 1010 is Commercial

Residential, Commercial

or Both

Both No This ISU is only displayed when ISU 2010 Heating

Both No This ISU is only displayed for heat pumps when ISU

Both No Manual: The user must select heating or cooling as

Requires

EIM Notes

Equipment Type is Air to Air Heat Pump, Geothermal Heat Pump or Geothermal Radiant Heat and ISU 2180 Backup Heat Type is Standard Efficiency Gas Forced Air, High Efficiency Gas Forced Air or Oil Forced Air.

Equipment Type is Air to Air Heat Pump, Geothermal Heat Pump or Geothermal Radiant Heat and ISU 2180 Backup Heat Type is Hot Water Fan Coil or Other.

Not Allowed to Run with Heat Pump: The

thermostat turns off the heat pump when it calls for backup heat.

Allowed to Run with Heat Pump: The thermostat keeps the heat pump on when it calls for backup heat.

2180 Backup Heat Type is Other.

Backup Heat Fan Operation:

Electric Forced Air: Thermostat Controls Fan

Standard Efficiency Gas Forced Air: Equipment Controls Fan

High Efficiency Gas Forced Air: Equipment Controls Fan

Oil Forced Air: Equipment Controls Fan

Hot Water Fan Coil: Thermostat Controls Fan

Hot Water Radiant Heat: Not Applicable

Application is Commercial.

None: The A-L/A terminal is not used.

Time of Day: The A-L/A terminal is energized during

Occupied periods and when the user overrides the temperature. The terminal is de-energized during Unoccupied periods and in Standby mode.

Economizer: The thermostat controls an economizer module to provide ventilation during Occupied periods and free cooling when outdoor conditions are favorable. The A-L/A terminal is energized during Occupied periods and during a call for cooling in Unoccupied periods. See “Economizer and Time of Day (TOD) Operation” beginning on page 91. Notes: The economizer module determines when outdoor conditions are favorable for free cooling. Delta T Diagnostics is not available when the thermostat is setup for an Economizer.

Heat Pump Failure Indication: When 24 volts is detected on the L/A terminal (compressor monitor), the thermostat displays a message to alert the user when the heat pump requires service. The L/A terminal sends a continuous output to a zone panel when the thermostat is set to Emergency Heat mode. The zone panel will not turn on the heat pump when a zone is set to Emergency Heat mode.

needed to maintain the desired indoor temperature.

Automatic: The user has the option to select Auto for the system setting. In Auto mode, the thermostat controls heating and cooling equipment as needed to maintain the desired indoor temperature.

68-0311—01 20

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

3000 Deadband 2° F to 9° F (in 1° F increments) 3° F Both No This ISU is only displayed when ISU 3000 is set to

3010 Temperature Control

3020 Finish With High Cool

3021 Finish With High Heat

3030 Staging Control -

Options

Stage

Cool Differential Stage 2

Basic Options Advanced Options Advanced Options + PID Settings

No Yes

Comfort

1.0° F to 3.5° F from setpoint (in

0.5° F increments)

Basic Options Both No Basic Options: The Installer Setup displays basic

No Both No ISU 3010 Temperature Control Options must be set

Comfort Both No ISU 3010 Temperature Control Options must be set

Residential, Commercial

or Both

Requires

EIM Notes

Automatic.

Deadband is the minimum separation between heat and cool settings when the thermostat is setup for Auto Changeover. For example, if the deadband is set to 3° F and the cool setpoint is 75° F, the warmest heat setpoint allowed would be 72° F. If the heat setpoint is adjusted above 72° F, it will automatically adjust the cooling setpoint higher to maintain the 3° F deadband.

temperature control options which include Backup Heat Differential, Backup Heat Upstage Timer and Outdoor Temperature Lockouts. Note: Outdoor Temperature Lockouts only apply to Heat Pump applications.

Advanced Options: The Installer Setup displays both Basic and Advanced Options. Advanced temperature control options include Finish With High Cool Stage, Finish With High Heat Stage, Temperature Differential settings between all stages and Cycle Rate settings per stage.

Advanced Options+PID Settings: The Installer Setup displays both Basic and Advanced Options including PID settings which allow you to adjust the integral, derivative and throttling range.

to Advanced to view or adjust Finish With High

Cool Stage.

This ISU is only displayed when the thermostat is set for 2 or more cool stages.

When set to Yes, this feature keeps the high stage of the cooling equipment running until the desired setpoint is reached.

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.

When set to Yes, this feature keeps the high stage of the heating equipment running until the desired setpoint is reached.

to Advanced to view or adjust this ISU.

This ISU is only displayed when the thermostat is set to 2 cool stages.

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 of cooling as needed to keep the indoor temperature within 1° F (0.5° C) degree of the setpoint.

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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

3030 Staging Control -

3040 Staging Control -

3050 Staging Control -

Cool Differential Stage 3

Cool Differential Stage 4

Radiant Heat Differential Stage 2

Heat Differential Stage 2

Note: Depending on the application, the text displayed on the screen may show the specific heating equipment type

Heat Differential Stage 3

Note: Depending on the application, the text displayed on the screen may show the specific heating equipment type

Comfort

1.0°F - 4.0°F from setpoint (in

0.5° F increments)

Comfort

1.0° F to 4.5° F from setpoint (in

0.5° F increments)

Comfort

1.0° F to 3.5° F from setpoint (in

0.5° F increments)

Comfort

1.0° F to 3.5° F from setpoint (in

0.5° F increments)

Comfort

1.0° F to 4.0° F from setpoint (in

0.5° F increments)

Comfort Commercial No ISU 3010 Temperature Control Options must be set

Comfort Both No ISU 3010 Temperature Control Options must be set

Residential, Commercial

or Both

Requires

EIM Notes

to Advanced to view or adjust this ISU.

This ISU is only displayed when the thermostat is set to 3 cool stages.

The indoor temperature must rise to the selected differential setting before the thermostat turns on the stage of cooling. For example, if stage 3 is set to 2° F (1.0° C), the indoor temperature must be 2° F (1.0° C) away from the setpoint before stage 3 turns on. When set to Comfort, the thermostat uses the stage of cooling as needed to keep the indoor temperature within 1° F (0.5° C) degree of the setpoint.

to Advanced to view or adjust this ISU.

This ISU is only displayed when the thermostat is set to 4 cool stages.

The indoor temperature must rise to the selected differential setting before the thermostat turns on the stage of cooling. For example, if stage 4 is set to 2° F (1.0° C), the indoor temperature must be 2° F (1.0° C) away from the setpoint before stage 4 turns on. When set to Comfort, the thermostat uses the stage of cooling as needed to keep the indoor temperature within 1° F (0.5° C) degree of the setpoint.

to Advanced to view or adjust this ISU.

This ISU is only displayed if ISU 2010 Heating Equipment Type is Geothermal Radiant Heat and there are 2 radiant heat stages.

The indoor temperature must drop to the selected differential setting before the thermostat will turn on the stage of heating. 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 will use the stage of heating as needed to keep the indoor temperature within 1° F (0.5° C) degree of the setpoint.

to Advanced to view or adjust this ISU.

This ISU is only displayed for conventional systems that have 2 heat stages.

to Advanced to view or adjust this ISU.

This ISU is only displayed for conventional systems that have 3 heat stages.

The indoor temperature must drop to the selected differential setting before the thermostat will turn on the stage of heating. For example, if stage 3 is set to 2° F (1.0° C), the indoor temperature must be 2° F (1.0° C) away from the setpoint before stage 3 turns on. When set to Comfort, the thermostat will use the stage of heating as needed to keep the indoor temperature within 1° F (0.5° C) degree of the setpoint.

68-0311—01 22

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

3060 Staging Control -

3080, 3090

3110 Backup Heat Upstage

Compressor Heat Differential Stage 1

Compressor Heat Differential Stage 2

Staging Control Backup Heat Differential Stage 1

Note: “Stage 1" is not displayed if there is only 1 stage of Backup Heat.

Staging Control Backup Heat Differential Stage 2

Timer

Comfort

1.0° F to 4.0° F from setpoint (in

0.5° F increments)

Comfort

1.0° F to 4.5° F from setpoint (in

0.5° F increments)

Comfort

2.0° F to 15.0° F from setpoint (in

0.5° F increments)

Comfort

2.0° F to 15.5° F from setpoint (in

0.5° F increments)

Off (30, 45, 60, 75, 90) minutes (2, 3, 4, 5, 6, 8, 10, 12, 14, 16)

hours

Comfort Both No ISU 3010 Temperature Control Options must be set

Comfort Both No A backup heat differential can be set on any system

Comfort Both No ISU 3010 Temperature Control Options must be set

Off Both No The Backup Heat Upstage Timer starts when the

Residential, Commercial

or Both

Requires

EIM Notes

to Advanced to view or adjust this ISU.

This ISU is only displayed if ISU 2010 Heating Equipment Type is Geothermal Radiant Heat and ISU 2050 Geothermal Forced Air System is set to

Used for Heating and Cooling.

The indoor temperature must drop to the selected differential setting before the thermostat will turn on the stage of heating. For example, if stage 1 is set to 2° F (1.0° C), the indoor temperature must be 2° F (1.0° C) away from the setpoint before stage 1 turns on. When set to Comfort, the thermostat will use the stage of heating as needed to keep the indoor temperature within 1° F (0.5° C) degree of the setpoint.

to Advanced to view or adjust this ISU.

This ISU is only displayed if ISU 2010 Heating Equipment Type is Air to Air Heat Pump,

Geothermal Heat Pump or Geothermal Radiant Heat and there are 2 compressor stages.

that has more than one heating equipment type.

See “Backup Heat Differential (Droop)” beginning on page 60.

The Comfort setting is only available on systems when the Backup Heat Type is Allowed to Run with the Primary Heat (Heat Pump). For example, Heat Pumps with Electric Forced Air Backup Heat.

The Comfort setting is NOT available for Dual Fuel systems. For example, Heat Pumps with Gas Forced Air.

to Advanced to view or adjust Backup Heat

Differential Stage 2.

This ISU is only displayed if there are 2 backup heat stages.

The indoor temperature must drop to the selected differential setting before the thermostat will turn on backup heat stage 2. For example, if backup heat 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 backup heat stage 2 turns on. When set to Comfort, the thermostat will use backup heat stage 2 as needed to keep the indoor temperature within 1° F (0.5° C) degree of the setpoint.

highest stage of the previous heating equipment type turns on. Backup heat will be used (if needed) when the timer expires. See “Backup Heat Upstage Timer” beginning on page 61.

This ISU is only displayed when Backup Heat Differential Stage 1 is set to 2 F or higher (ISU 3080,

3090).

23 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

3120 Outdoor Temperature

3130 Radiant Heat Cycles

Lockouts:

Compressor Lockout / Balance Point

Lockouts:

Backup Heat Lockout

Per Hour - Stage 1

Note: “Stage 1" is not displayed if there is only 1 stage of Radiant Heat.

Per Hour - Stage 2

Off 5° F to 60° F (in 5° F increments)

Off 5° F to 65° F (in 5° F increments)

1 to 12 CPH 3 Both No ISU 3010 Temperature Control Options must be set

Off

(See Notes)

Off Both No ISU 3120 Backup Heat Outdoor Temperature

Residential, Commercial

or Both

Both No ISU 3120 Compressor Lockout / Balance Point

Requires

EIM Notes

requires an outdoor sensor.

Default is 40 F if ISU 2010 Heating Equipment Type is Air to Air Heat Pump and ISU 2180 Backup Type is gas or oil forced air.

Default is Off if ISU 2010 Heating Equipment Type is Air to Air Heat Pump and ISU 2180 Backup Type is electric forced air.

Default is Off if ISU 2010 Heating Equipment Type is

Geothermal Heat Pump or Geothermal Radiant Heat.

Compressor Lockout / Balance Point is optional for any type of heat pump (Air to Air Heat Pump, Geothermal Heat Pump or Geothermal Radiant Heat).

See “Heat pump with outdoor temperature lockouts” beginning on page 62.

Lockout requires an outdoor sensor.

This ISU is only displayed if ISU 2010 Heating Equipment Type is Air to Air Heat Pump,

Geothermal Heat Pump or Geothermal Radiant Heat and ISU 2190 External fossil fuel kit is set to Thermostat Controls Backup Heat.

See “Heat pump with outdoor temperature lockouts” beginning on page 62.

to Advanced to view or adjust cycle rate.

This ISU is only displayed when ISU 2010 Heating Equipment Type is Geothermal Radiant Heat.

The thermostat automatically defaults to the recommended setting for Geothermal Radiant Heat (3 CPH).

to Advanced to view or adjust cycle rate.

This ISU is only displayed when ISU 2010 Heating Equipment Type is Geothermal Radiant Heat.

The thermostat automatically defaults to the recommended setting for Geothermal Radiant Heat (3 CPH).

68-0311—01 24

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

3140 Cool / Compressor

3140 Cool Cycles Per Hour

Cycles Per Hour Stage 1

Note: “Stage 1" is not displayed if there is only 1 stage.

Cycles Per Hour Stage 2

- Stage 3

- Stage 4

1 to 6 CPH 3 Both No ISU 3010 Temperature Control Options must be set

1 to 6 CPH 3 Commercial No ISU 3010 Temperature Control Options must be set

Residential, Commercial

or Both

Requires

EIM Notes

to Advanced to view or adjust cycle rate.

This ISU is only displayed when ISU 2070 Cool / Compressor Stages is set to 1 stage.

to Advanced to view or adjust cycle rate.

This ISU is only displayed when ISU 2070 Cool / Compressor Stages is set to 2 stages.

to Advanced to view or adjust cycle rate.

This ISU is only displayed when ISU 1010 Application is set to Commercial and ISU 2070 Cool Stages is set to 3 stages.

to Advanced to view or adjust cycle rate.

This ISU is only displayed when ISU 1010 Application is set to Commercial and ISU 2070 Cool Stages is set to 4 stages.

25 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

3150 Heat Cycles Per Hour

- 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.

- Stage 2

Note: Depending on the application, the text displayed on the screen may show the specific heating equipment type.

1 to 12 CPH Default varies

based on heating equipment type selected

Residential, Commercial

or Both

Both No ISU 3010 Temperature Control Options must be set

Requires

EIM Notes

to Advanced to view or adjust cycle rate.

This ISU is only displayed when ISU 2070 Heat Stages is set to 1 stage.

Cycle rate limits the maximum number of times the system can cycle in a 1 hour period measured at a 50% load. For example, when set to 3 CPH, at a 50% load, the most the system will cycle is 3 times per hour (10 minutes on, 10 minutes off). The system cycles less often when load conditions are less than or greater than a 50% load. The thermostat automatically defaults to the recommended cycle rate based on the heating equipment type that is used. You can change the cycle rate as needed. Defaults for commonly used systems are shown below.

Standard Efficiency Gas Forced Air = 5 CPH High Efficiency Gas Forced Air = 3 CPH Oil Forced Air = 5 CPH Electric Forced Air = 9 CPH Hot Water Fan Coil = 3 CPH Hot Water Radiant Heat = 3 CPH Geothermal Radiant Heat = 3 CPH Steam = 1 CPH Gravity = 1 CPH

to Advanced to view or adjust cycle rate.

This ISU is only displayed when ISU 2070 Heat Stages is set to 2 stages. Cycle rate limits the maximum number of times the system can cycle in a 1 hour period measured at a 50% load. For example, when set to 3 CPH, at a 50% load, the most the system will cycle is 3 times per hour (10 minutes on, 10 minutes off). The system cycles less often when load conditions are less than or greater than a 50% load. The thermostat automatically defaults to the recommended cycle rate based on the heating equipment type that is used. You can change the cycle rate as needed. Defaults for commonly used systems are shown below.

68-0311—01 26

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

3150 Heat Cycles Per Hour

3160 Backup Heat Cycles

- Stage 3

Note: Depending on the application, the text displayed on the screen may show the specific heating equipment type.

Per Hour - Stage 1

Note: “Stage 1" is not displayed if there is only 1 stage.

1 to 12 CPH Default varies

based on heating equipment type selected

Residential, Commercial

or Both

Both No ISU 3010 Temperature Control Options must be set

Requires

EIM Notes

to Advanced to view or adjust cycle rate.

This ISU is only displayed when ISU 2070 Heat Stages is set to 3 stages.

to Advanced to view or adjust cycle rate.

This ISU is only displayed when ISU 2070 or 2130 Backup Heat Stages is set to 1 stage.

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THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

3160 Backup Heat Cycles

3170 Cooling Throttling

3180 Cooling Integral 0, 100 to 25,000 sec 10,000 sec Commercial No The default Cooling Integral is 10,000 seconds

3190 Cooling Derivative 0, 100 to 25,000 sec 0 sec Commercial No The default Cooling Derivative is 0 seconds which is

3200 Heating Throttling

3210 Heating Integral 0, 100 to 25,000 sec 10,000 sec Commercial No The default Heating Integral is 10,000 seconds

3220 Heating Derivative 0, 100 to 25,000 sec 0 sec Commercial No The default Heating Derivative is 0 seconds which is

3240 Minimum

Per Hour - Stage 2

Range

Compressor Off Time

1 to 12 CPH Default varies

1° F to 30° F 2° F Commercial No The default Cooling Throttling range is 2° F (1.5° C)

1° F to 30° F 2° F Commercial No The default Heating Throttling Range is 2° F (1.5° C)

Off 1 - 5 minutes

based on heating equipment type selected

5 minutes Both No The thermostat has a built in compressor protection

Residential, Commercial

or Both

Both No ISU 3010 Temperature Control Options must be set

Requires

EIM Notes

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.

which is appropriate for most applications. Do not change this setting unless advised to do so by Honeywell technical support. The throttling range controls the cycling of the system and helps to compensate for load changes, equipment sizing and thermostat mounting location.

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.

appropriate for most applications. Do not change this setting unless advised to do so by Honeywell technical support. The derivative makes adjustments to the algorithm for fast acting systems.

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.

appropriate for most applications. Do not change this setting unless advised to do so by Honeywell technical support. The derivative makes adjustments to the algorithm for fast acting systems.

(minimum off timer) that prevents the compressor from restarting too early after a shutdown. The minimum-off timer is activated after the compressor turns off.

If there is a call during the minimum-off timer, the thermostat shows “waiting for equipment” in the display.

68-0311—01 28

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

3260 Extended Fan Run

4000 Number Of Schedule

4010 Pre-Occupancy Purge

4020 Type of Override Standard

4030 Override Duration No Limit

4050 Minimum Heat

Time in Cool

Time in Heat

Periods

Duration

Recovery Ramp Rate

0, 30, 60, 90 seconds, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 minutes

2 or 4 periods per day 4 periods per day Both No Residential:

Off 1 hour 2 hour 3 hour

Initiate Occupancy

1 to 12 Hours

Off 1° F/hr to 20° F/hr

0 seconds Both No After the call for cooling ends, the thermostat keeps

0 seconds Both No After the call for heating ends, the thermostat keeps

Off Commercial No Runs the fan 1 to 3 hours before each occupied

Standard Commercial No Standard:

3 hours Commercial No When the user presses the OVERRIDE button, the

5° F/hr Commercial No Off: The heating system will begin recovery at the

Residential, Commercial

or Both

Requires

EIM Notes

the fan on for the selected amount of time for increased efficiency. This may re-introduce humidity into the living space.

the fan on for the selected amount of time for increased efficiency.

4 Periods = Wake, Leave, Return, Sleep 2 Periods = Wake, Sleep

Commercial: 4 Periods = Occupied 1, Unoccupied 1, Occupied 2, Unoccupied 2 2 Periods = Occupied 1, Unoccupied 1

period to provide a comfortable workplace upon arrival.

The system maintains temperatures programmed for the occupied and unoccupied time periods. Pressing OVERRIDE will allow the user to make a temporary schedule change.

Initiate Occupancy: The system maintains temperature at an energy saving level until the Press to Start Occupancy button is pressed by the user. The system will then maintain a comfortable temperature until the occupied period ends. This option is recommended for cost savings when the workplace is used infrequently or arrival times change from day to day (example - schools). Once the occupancy is activated by pressing the Press to Start Occupancy button, the user will still be able to perform a standard OVERRIDE of the schedule.

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). Default setting is 3 hours. If set to No Limit, the user can adjust the Hold Until time up to 24 hours.

time that is scheduled.

When a Minimum Recovery Ramp Rate is set, the thermostat will begin recovery early to ensure the temperature is reached at the scheduled time.

Set a Minimum Recovery Ramp Rate based on the rate that the heating system can recover at for a cold day in your region. Default setting is 5° F / hour.

If an outdoor sensor is installed, set an Outdoor Temperature that is representative of a cold day in your region to be associated with the Minimum Recovery Ramp Rate. The thermostat will begin recovery at the optimal time based on a calculated ramp rate, allowing the system to recover on time and save energy during changing outdoor conditions.

During recovery, the setpoint changes at a rate in degrees per hour depending on the outdoor temperature. If there is no outdoor sensor, the Minimum Recovery Ramp Rate is used.

29 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

4050 Outdoor Temperature

4060 Maximum Heat

4060 Outdoor Temperature

used with Minimum Heat Recovery Ramp Rate

Recovery Ramp Rate

used with Maximum Heat Recovery Ramp Rate

Off

-20° F to 100°F

Off 1° F/hr to 20° F/hr

Off

-20° F to 100° F

0° F Commercial No Off: The heating system will begin recovery at the

8° F/hr Commercial No Off: The heating system will begin recovery at the

40° F Commercial No Off: The heating system will begin recovery at the

Residential, Commercial

or Both

Requires

EIM Notes

time that is scheduled.

When a Minimum Recovery Ramp Rate is set, the thermostat will begin recovery early to ensure the temperature is reached at the scheduled time.

Set a Minimum Recovery Ramp Rate based on the rate that the heating system can recover at for a cold day in your region. Default setting is 5° F / hour.

During recovery, the setpoint changes at a rate in degrees per hour depending on the outdoor temperature. If there is no outdoor sensor, the Minimum Recovery Ramp Rate is used.

time that is scheduled.

When a Maximum Recovery Ramp Rate is set, the thermostat will begin recovery early to ensure the temperature is reached at the scheduled time.

Set a Maximum Recovery Ramp Rate based on the rate that the heating system can recover at for a mild day in your region. Default setting is 8° F / hour.

Set an Outdoor Temperature that is representative of a mild day in your region to be associated with the Maximum Recovery Ramp Rate. The thermostat will begin recovery at the optimal time based on a calculated ramp rate, allowing the system to recover on time and save energy during changing outdoor conditions.

During recovery, the setpoint changes at a rate in degrees per hour depending on the outdoor temperature.

time that is scheduled.

When a Maximum Recovery Ramp Rate is set, the thermostat will begin recovery early to ensure the temperature is reached at the scheduled time.

Set a Maximum Recovery Ramp Rate based on the rate that the heating system can recover at for a mild day in your region. Default setting is 8° F / hour.

During recovery, the setpoint changes at a rate in degrees per hour depending on the outdoor temperature.

68-0311—01 30

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

4070 Minimum Cool

4070 Outdoor Temperature

4080 Maximum Cool

Recovery Ramp Rate

used with Minimum Cool Recovery Ramp Rate

Recovery Ramp Rate

Off 1° F/hr to 20° F/hr

Off

-20° F to 100° F

Off 1° F/hr to 20° F/hr

3° F/hr Commercial No Off: The cooling system will begin recovery at the

90° F Commercial No Off: The cooling system will begin recovery at the

6° F/hr Commercial No Off: The cooling system will begin recovery at the

Residential, Commercial

or Both

Requires

EIM Notes

time that is scheduled.

When a Minimum Recovery Ramp Rate is set, the thermostat will begin recovery early to ensure the temperature is reached at the scheduled time.

Set a Minimum Recovery Ramp Rate based on the rate that the cooling system can recover at for a hot day in your region. Default setting is 3° F / hour.

If an outdoor sensor is installed, set an Outdoor Temperature that is representative of a hot day in your region to be associated with the Minimum Recovery Ramp Rate. The thermostat will begin recovery at the optimal time based on a calculated ramp rate, allowing the system to recover on time and save energy during changing outdoor conditions.

During recovery, the setpoint changes at a rate in degrees per hour depending on the outdoor temperature. If there is no outdoor sensor, the Minimum Recovery Ramp Rate is used.

time that is scheduled.

When a Minimum Recovery Ramp Rate is set, the thermostat will begin recovery early to ensure the temperature is reached at the scheduled time.

Set a Minimum Recovery Ramp Rate based on the rate that the cooling system can recover at for a hot day in your region. Default setting is 3° F / hour.

During recovery, the setpoint changes at a rate in degrees per hour depending on the outdoor temperature. If there is no outdoor sensor, the Minimum Recovery Ramp Rate is used.

time that is scheduled.

When a Maximum Recovery Ramp Rate is set, the thermostat will begin recovery early to ensure the temperature is reached at the scheduled time.

Set a Maximum Recovery Ramp Rate rate that the cooling system can recover at for a mild day in your region. Default setting is 6° F / hour.

Set an Outdoor Temperature that is representative of a mild day in your region to be associated with the Maximum Recovery Ramp Rate.

The thermostat will begin recovery at the optimal time based on a calculated ramp rate, allowing the system to recover on time and save energy during changing outdoor conditions.

During recovery, the setpoint changes at a rate in degrees per hour depending on the outdoor temperature.

based on the

31 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

4080 Outdoor Temperature

4090 Adaptive Intelligent

4100 Minimum Cool

4100 Maximum Heat

4110 Keypad Lockout Unlocked

4120 Residential:

4130 Residential:

used with Maximum Cool Recovery Ramp Rate

Recovery

Setpoint

Entry / Exit Remote Home Cool Setpoint

Commercial:

Entry / Exit Remote Occupied Cool Setpoint

Entry / Exit Remote Home Heat Setpoint

Commercial:

Entry / Exit Remote Occupied Heat Setpoint

Entry / Exit Remote Away Cool Setpoint

Commercial:

Entry / Exit Remote Unoccupied Cool Setpoint

Off

-20° F to 100°F

No Yes

50° F to 99° F 50° F Both No The user cannot set the temperature below this

40° F to 90° F 90° F Both No The user cannot set the temperature above this

Partially Locked Fully Locked

None 50° F to 99° F

Note: setpoint is limited based on setting at ISU 4100.

None 40° F to 90° F

Note: setpoint is limited based on setting at ISU 4100.

None 50° F to 99° F

Note: setpoint is limited based on setting at ISU 4100.

70° F Commercial No Off: The cooling system will begin recovery at the

Yes Residential No No: The system will begin heating or cooling

Unlocked Both No Unlocked: User has access to all thermostat

75° F Both No The thermostat maintains this Cool setting when the

70° F Both No The thermostat maintains this Heat setting when the

78° F Both No The thermostat maintains this Cool setting when the

Residential, Commercial

or Both

Requires

EIM Notes

time that is scheduled.

When a Maximum Recovery Ramp Rate is set, the thermostat will begin recovery early to ensure the temperature is reached at the scheduled time.

Set a Maximum Recovery Ramp Rate based on the rate that the cooling system can recover at for a mild day in your region. Default setting is 6° F / hour.

Set an Outdoor Temperature that is representative of a mild day in your region to be associated with the Maximum Recovery Ramp Rate.

The thermostat will begin recovery at the optimal time based on a calculated ramp rate, allowing the system to recover on time and save energy during changing outdoor conditions.

During recovery, the setpoint changes at a rate in degrees per hour depending on the outdoor temperature.

recovery at the scheduled time.

Yes: The thermostat will begin heating or cooling recovery early to ensure that the temperature is reached at the scheduled time. The thermostat will adjust the start time of the equipment based on how quickly the scheduled temperature was reached on previous days.

level.

settings.

Partially Locked: User can modify only temperature settings.

Fully Locked: User cannot modify any settings.

user presses Home / Occupied at the Entry / Exit Remote. Select None to delete this temperature setting. The thermostat only responds to the Entry / Exit Remote if a temperature is pre-set at this screen. See “Wireless Entry/Exit Remote” beginning on page 94.

user presses Away / Unoccupied at the Entry / Exit Remote. Select None to delete this temperature setting. The thermostat only responds to the Entry / Exit Remote if a temperature is pre-set at this screen. See “Wireless Entry/Exit Remote” beginning on page 94.

68-0311—01 32

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

4130 Residential:

4140 Residential:

5000 What Sensors are

5010 Indoor Temperature

5020 What Terminals are

5030 Indoor Temperature

Entry / Exit Remote Away Heat Setpoint

Commercial:

Entry / Exit Remote Unoccupied Heat Setpoint

Entry / Exit Remote Vacation Cool Setpoint

Commercial:

Entry / Exit Remote Holiday Cool Setpoint

Entry / Exit Remote Vacation Heat Setpoint

Commercial:

Entry / Exit Remote Holiday Heat Setpoint

WIRED to your System?

Sensor Name

Wired to the Indoor Temperature Sensor?

Sensor Type

None 40° F to 90° F

Note: setpoint is limited based on setting at ISU 4100.

None 50° F to 99° F

Note: setpoint is limited based on setting at ISU 4100.

None 40° F to 90° F

Note: setpoint is limited based on setting at ISU 4100.

Check box on screen for each:

Indoor Air Temperature Outdoor Air Temperature Return Air Temperature Discharge Air Temperature

[Sensor Name] Indoor Sensor Both Yes Wired Sensors requires an EIM (Equipment

None S1 S2

10K 20K

65° F Both No The thermostat maintains this Heat setting when the

82° F Both No The thermostat maintains this Cool setting when the

60° F Both No The thermostat maintains this Heat setting when the

None Both Yes Wired Sensors requires an EIM (Equipment

10K:

if ISU 1010 Application is Residential

20K:

if ISU 1010: Application is Commercial

Residential, Commercial

or Both

Both Yes Wired Sensors requires an EIM (Equipment

Requires

EIM Notes

user presses Vacation / Holiday at the Entry / Exit Remote. Select None to delete this temperature setting. The thermostat only responds to the Entry / Exit Remote if a temperature is pre-set at this screen. See “Wireless Entry/Exit Remote” beginning on page 94.

Interface Module). This ISU is only displayed if an S1 or S2 terminal is available.

Click boxes on screen to select which sensors are wired to the S1 and S2 terminals at the EIM.

The thermostat will not display Outdoor Air Temperature if a wireless outdoor air sensor is connected.

The thermostat will not display Indoor Air Temperature if 6 wireless indoor air sensors are connected. If you have a wired Indoor Air Temperature network (1, 4, 9 etc), the thermostat will allow up to 5 wireless indoor air sensors.

The thermostat will not display Return / Discharge Air Temperature if there is no fan in the system.

Interface Module).

Enter a name (location) of the Wired Indoor Air Temperature Sensor.

Interface Module).

Select 10K or 20K based on the sensor installed. Refer to resistance values below:

C7189U1005 = 10K ohm C7772 = 20K ohm TR21 = 20K ohm TR21-A = 10K ohm (IMPORTANT - the TR21-A must be used in combination with a TR21 sensor or another TR21-A sensor for the thermostat to calculate the correct indoor temperature reading).

See “Wiring guide — Wired Indoor Sensors” beginning on page 119 for information on the sensor type you should select based on how the sensors are wired. For example, you would select 20K when you have two TR21-A (10K) sensors wired in series.

33 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

5040 Which Sensors will

5050 What Terminals are

5070 What Terminals are

5080 Return Air

5090 What Terminals are

5100 Discharge Air

5110 A-Coil Low

6000 Select the Dry

6010 What Terminals are

be used for TEMPERATURE Control? (Multiple Sensors are Averaged)

Wired to the Outdoor Temperature Sensor?

Wired to the Return Air Temperature Sensor?

Temperature Sensor Type

Wired to the Discharge Air Temperature Sensor?

Temperature Sensor Type

Temperature Cutoff

Contacts in the System

Wired to the Remote Setback Dry Contact?

Thermostat (Internal) Sensor Name (Remote) Sensor Name (Remote) Sensor Name (Remote) Sensor Name (Remote) Sensor Name (Remote) Sensor Name (Remote)

(Up to 6 Remote Sensors)

None S1 S2

10K 20K

None S1 S2

10K 20K

Off 35° F to 65° F (in 5° F increments)

Check box on screen for each:

Remote Setback Full Drain Pan Alert Dirty Filter Alert Water Leak Alert System Shutdown Alert Service Needed Alert Fan Failure Alert Custom Alert

None S1 S2

Sensors are Averaged (Internal and Remote)

None Both Yes Wired Sensors requires an EIM (Equipment

10K Both Yes Wired Sensors requires an EIM (Equipment

None Both Yes Wired Sensors requires an EIM (Equipment

10K Both Yes Wired Sensors requires an EIM (Equipment

Off Both Yes If an optional Discharge Air Temperature sensor is

None Both

None Commercial Yes Remote Setback requires an EIM (Equipment

Residential, Commercial

or Both

Both No Select the sensors to be used for temperature

Remote Setback

(Commercial Only)

Requires

EIM Notes

control. If you select more than one, the thermostat will average the temperature readings from each sensor.

See “Remote Indoor Sensors” beginning on page 96.

Interface Module).

Select 10K or 20K based on the sensor installed. Refer to resistance values below:

50062329-001 = 10K ohm 32005180-002 = 10K ohm C7735A1000 = 10K ohm C7770A = 20K ohm C7041 = 20K ohm

Interface Module).

Select 10K or 20K based on the sensor installed. Refer to resistance values below:

50062329-001 = 10K ohm 32005180-002 = 10K ohm C7735A1000 = 10K ohm C7770A = 20K ohm C7041 = 20K ohm

used, this feature can help prevent icing on the air conditioning A-Coil.

When temperature reaches the limit you set, compressor(s) will shutoff while the system fan continues to run, until the temperature rises to a safe level.

Yes Remote Setback and Dry Contact Alerts requires an

EIM (Equipment Interface Module). This ISU is only displayed if an S1 or S2 terminal is available.

See “Dry Contact Alerts” beginning on page 57.

Interface Module).

68-0311—01 34

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

6020 Remote Setback Dry

6030 Remote Setback Time

6040 Remote Setback -

6050 What Terminals are

6060 Full Drain Pan Alert

6070 What Terminals are

Contact Setup

Delay from Occupied to Unoccupied

Standby Cool Setpoint

Standby Heat Setpoint

Wired to the Full Drain Pan Alert Dry Contact?

Dry Contact Setup

Wired to the Dirty Filter Alert Dry Contact?

Normally Open when Occupied Normally Closed when Occupied

0 to 30 minutes (in 5 minute increments)

72° F to 90° F 85° F Commercial Yes Remote Setback requires an EIM (Equipment

50° F to 70° F 64° F Commercial Yes Remote Setback requires an EIM (Equipment

None S1 S2

Normally Open Normally Closed

None S1 S2

Normally Open when Occupied

0 minutes Commercial Yes Remote Setback requires an EIM (Equipment

None Both Yes Dry Contact Alerts require an EIM (Equipment

Normally Open Both Yes Dry Contact Alerts require an EIM (Equipment

None Both Yes Dry Contact Alerts require an EIM (Equipment

Residential, Commercial

or Both

Commercial Yes Remote Setback requires an EIM (Equipment

Requires

EIM Notes

Interface Module).

Choose an option appropriate for the type of device installed:

Normally Open when Occupied: The Dry Contact device is open when the room is occupied and will close when the room is unoccupied.

Normally Closed when Occupied: The Dry Contact device is closed when the room is occupied and will open when the room is unoccupied.

Interface Module).

The Remote Setback Time Delay forces the thermostat to wait before it switches from Occupied to Standby temperature settings.

When set to 0 minutes, the thermostat will switch from Occupied to Standby temperature settings immediately when the room is unoccupied.

Interface Module).

During occupied periods, the occupancy sensor tells the thermostat to go to STANDBY (setback settings) when no one is in the room. If someone is in the room, then it follows the settings of the occupied period. The occupancy sensor is ignored during unoccupied periods.

If the thermostat is setup for non-programmable, the occupancy sensor tells the thermostat to go to STANDBY settings when no one is in the room. If someone is in the room, then it follows the settings set by the user.

Interface Module).

Choose an option appropriate for the type of device installed.

Normally Open: The Dry Contact device is normally open and will close when the device detects the drain pan is full.

Normally Closed: The Dry Contact device is normally closed and will open when the device detects the drain pan is full.

Interface Module).

35 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

6080 Dirty Filter Alert Dry

6090 What Terminals are

6100 Water Leak Alert Dry

6110 What Terminals are

6120 System Shutdown

6130 What Terminals are

6140 Service Needed Alert

6150 What Terminals are

Contact Setup

Wired to the Water Leak Alert Dry Contact?

Contact Setup

Wired to the System Shutdown Alert Dry Contact?

Alert Dry Contact Setup

Wired to the Service Needed Alert Dry Contact?

Dry Contact Setup

Wired to the Fan Failure Alert Dry Contact?

Normally Open Normally Closed

None S1 S2

Normally Open Normally Closed

None S1 S2

Normally Open Normally Closed

None S1 S2

Normally Open Normally Closed

None S1 S2

Normally Open Both Yes Dry Contact Alerts require an EIM (Equipment

None Both Yes Dry Contact Alerts require an EIM (Equipment

Normally Open Both Yes Dry Contact Alerts require an EIM (Equipment

None Both Yes Dry Contact Alerts require an EIM (Equipment

Normally Open Both Yes Dry Contact Alerts require an EIM (Equipment

None Both Yes Dry Contact Alerts require an EIM (Equipment

Normally Open Both Yes Dry Contact Alerts require an EIM (Equipment

None Both Yes Dry Contact Alerts require an EIM (Equipment

Residential, Commercial

or Both

Requires

EIM Notes

Interface Module).

Choose an option appropriate for the type of device installed:

Normally Open: The Dry Contact device is normally open and will close when the device detects a dirty filter.

Normally Closed: The Dry Contact device is normally closed and will open when the device detects a dirty filter.

Interface Module).

Choose an option appropriate for the type of device installed:

Normally Open: The Dry Contact device is normally open and will close when the device detects water.

Normally Closed: The Dry Contact device is normally closed and will open when the device detects water.

Interface Module).

Choose an option appropriate for the type of device installed:

Normally Open: The Dry Contact device is normally open and will close when the device is activated.

Normally Closed: The Dry Contact device is normally closed and will open when the device is activated.

Interface Module).

Choose an option appropriate for the type of device installed:

Normally Open: The Dry Contact device is normally open and will close when the device is activated.

Normally Closed: The Dry Contact device is normally closed and will open when the device is activated.

Interface Module).

68-0311—01 36

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

6160 Fan Failure Alert Dry

6170 What Terminals are

6180 Custom Alert Dry

6190 Custom Alert Name View/Edit Custom Alert View/Edit

6200 Custom Alert

7000 Filter Type None

7020 Number of Air Filters 1 to 2 1 Both No

7110 Air Filter 1

Contact Setup

Wired to the Custom Alert Dry Contact?

Contact Setup

Message

Replacement Reminder

Note: “1” is not displayed if there is only 1 filter.

Normally Open when Fan is Running

Normally Closed when Fan is Running

None S1 S2

Normally Open Normally Closed

View/Edit Custom Alert View/Edit

Electronic Air Cleaner Media

Off

Run Time: 10, 20, 30, 45, 60, 90, 120, 150

days

Normally Closed when Fan is Running

None Both Yes Dry Contact Alerts require an EIM (Equipment

Normally Open Both Yes Dry Contact Alerts require an EIM (Equipment

Custom Alert

Media Both No

Off Both No

Residential, Commercial

or Both

Both Yes Dry Contact Alerts require an EIM (Equipment

Requires

EIM Notes

Interface Module).

Choose an option appropriate for the type of device installed:

Normally Open when Fan is Running: The Dry Contact device is open when the fan is running and will close when the fan is not running.

Normally Closed when Fan is Running: The Dry Contact device is closed when the fan is running and will open when the fan is not running.

Interface Module).

Choose an option appropriate for the type of device installed:

Normally Open: The Dry Contact device is normally open and will close when the device is activated.

Normally Closed: The Dry Contact device is normally closed and will open when the device is activated.

Interface Module).

Enter a name for the custom alert dry contact. The thermostat displays this name including a brief message (entered on the next screen - ISU 6200) when a dry contact device detects a problem.

Interface Module).

Enter a message for the custom alert dry contact. The thermostat displays this message when a dry contact device detects a problem.

7110 Air Filter 2

Replacement Reminder

Calendar: 30, 45, 60, 75 days 3, 4, 5, 6, 9, 12, 15 months

Off

Run Time: 10, 20, 30, 45, 60, 90, 120, 150

days

Calendar: 30, 45, 60, 75 days 3, 4, 5, 6, 9, 12, 15 months

Off Both No

37 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

7120 Electronic Air Cleaner

8000 Humidifier Type None

8010 Which Sensor will be

Cell Cleaning Reminder

Pre-Filter Cleaning Reminder

Post-Filter Replacement Reminder

used for Humidification Control?

Off

Calendar Months: 6, 7, 8, 9, 10, 11, 12 months

Off

Calendar Months: 3, 4, 5, 6 months

Off

Calendar Months: 6, 7, 8, 9, 10, 11, 12 months

Steam Bypass or Fan Powered

Thermostat (Internal) Sensor Name (Remote) Sensor Name (Remote) Sensor Name (Remote) Sensor Name (Remote) Sensor Name (Remote) Sensor Name (Remote)

Off Both No

None Both No

Thermostat (Internal)

Residential, Commercial

or Both

Both No Select a sensor to control humidification

Requires

EIM Notes

(thermostat or an optional remote sensor). If multiple sensors are installed, you can use a different sensor for dehumidification control. See “Humidification control” beginning on page 96.

Note: Humidity sensing cannot be averaged.

8030 What Terminals are

8050 Humidification -

8060 System Modes

Wired to the Humidifier?

Window Protection

Allowing Humidification

(Up to 6 Remote Sensors)

None U1 U2 U3

Off On

Check box on screen for each:

Heat Cool Off

Thermostat defaults to the next unused universal terminal (U1, U2, U3).

Off Both No Requires an optional outdoor sensor.

Heat

Default varies based on heating/cooling equipment selected

Both No Number of Universal Outputs:

Both No Click boxes on screen to select which system

THX9321 Thermostat: U1 and U2 terminals Equipment Interface Module (EIM): U1, U2 and U3 terminals

U1, U2, U3 are dry contacts that require power. See “Wiring guide — IAQ Equipment (EIM or Thermostat)” beginning on page 115.

Off: The thermostat controls the humidity level to the user's desired humidity setting. Frost or condensation may appear on windows.

On: The thermostat prevents frost or condensation on windows by not allowing the humidity to go above the “Window Limit” when it is controlling the humidifier. The “Window Limit” is based on the current outdoor temperature and the user's window protection setting. The “Window Limit” is displayed on the user's humidification screen. See “Window Protection” beginning on page 64.

modes allow humidification. If a box is NOT checked, the thermostat will NOT allow humidification to operate in that mode.

Heat: Includes Heat, Emergency Heat and Auto. If the system is in Auto mode, the thermostat will allow humidification if the last call was for heat.

Cool: Includes Cool and Auto. If the system is in Auto mode, the thermostat will allow humidification if the last call was for cool. A discharge air temperature sensor is required to humidify in the Cool mode.

Off: The thermostat will allow humidification when the system setting is Off.

See “Set up Humidification” beginning on page 64.

68-0311—01 38

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

8070 Humidification

8080 Humidifier Lockout Humidifier Allowed when Cool is

8100 Clean Tank / Water

8100 Humidifier Pad

9000 Dehumidification

Control

Filter Replacement Reminder

Replacement Reminder

Equipment

Humidify Only when Heat is On

Humidify Only when Fan is On

Humidify on Demand: Thermostat Controls Fan

Humidify on Demand: Humidifier Controls Fan

Running

Humidifier Not Allowed when Cool is Running

Off 60 Run Time Days 90 Run Time Days 6 Calendar Months 12 Calendar Months

Residential:

None A/C with Low Speed Fan A/C with High Speed Fan Whole House Dehumidifier

Defaults to

Humidify Only when Heat is On

when ISU 8000 Humidifier Type is Bypass or Fan Powered

Defaults to

Humidify on Demand: Thermostat Controls Fan

when ISU 8000 Humidifier Type is Steam

Humidifier Allowed when Cool is Running

Off Both No This ISU is only displayed if ISU 8000 Humidifier

None Both No See “Dehumidification - Residential” beginning on

Residential, Commercial

or Both

Both No Humidify Only when Heat is On: The thermostat

Both No

Requires

EIM Notes

turns on the humidifier only if the heat is currently running.

Humidify Only when Fan is On: The thermostat turns on the humidifier only if the fan is currently running.

Humidify on Demand - Thermostat Controls Fan: The thermostat turns on the humidifier and the fan when humidification is needed.

Humidify on Demand - Humidifier Controls Fan: The thermostat turns on the humidifier when humidification is needed and the humidifier controls the fan.

Type is Steam.

Run Time Days are not shown if ISU 8000 Humidifier Type is set to None.

Type is Bypass or Fan Powered.

Run Time Days are not shown if ISU 8000 Humidifier Type is set to None.

page 66 or “Dehumidification - Commercial” beginning on page 70.

9010 Which Sensor will be

9020 Which Indoor

used for Dehumidification Control?

Humidity Sensor should be displayed on the Home Screen?

Commercial:

None A/C with Low Speed Fan A/C with High Speed Fan Hot Gas Bypass Dehumidifier

Thermostat (Internal) Sensor Name (Remote) Sensor Name (Remote) Sensor Name (Remote) Sensor Name (Remote) Sensor Name (Remote) Sensor Name (Remote)

(Up to 6 Remote Sensors)

Humidification Sensor Dehumidification Sensor

Thermostat (Internal)

Humidification Sensor

39 68-0311—01

Both No Select a sensor to control dehumidification

Both No This ISU is only displayed when separate humidity

(thermostat or an optional remote sensor). If multiple sensors are installed, you can use a different sensor for humidification control. See “Dehumidification control” beginning on page 96.

Note: Humidity sensing cannot be averaged.

sensors are used to control humidification and dehumidification. Only one of the sensors can be displayed on the home screen. Select either the Humidification Sensor or the Dehumidification Sensor.

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

9040 What Terminals are

9050 A/C with Low Speed

9070 Dehumidification -

9080 Dehumidification

Wired to A/C with Low Speed Fan?

What Terminals are Wired to Hot Gas Bypass?

What Terminals are Wired to the Dehumidifier?

What Terminals are Wired to the Whole House Dehumidifier?

Note: Installer Setup Name varies depending on the dehumidification equipment installed.

Fan Setup

Hot Gas Bypass Setup

Note: Installer Setup Name varies depending on the dehumidification equipment installed.

Overcooling Limit

Control

None U1 U2 U3

Normally Closed Normally Open

0°, 1°, 2°, 3° F 3° F Residential No This ISU is only displayed when ISU 9000

Basic

Minimum On Time

Thermostat defaults to the next unused universal terminal (U1, U2, U3).

Defaults to Normally Closed when ISU 9000 Dehumidification Equipment is A/C with Low Speed Fan

Defaults to

Normally Open

when ISU 9000 Dehumidification Equipment is Hot Gas Bypass

Basic Commercial No See “Dehumidification - Commercial” beginning on

Residential, Commercial

or Both

Both No Number of Universal Outputs:

Both No Choose an option appropriate for the type of

Requires

EIM Notes

THX9321 Thermostat: U1 and U2 terminals Equipment Interface Module (EIM): U1, U2 and U3 terminals

U1, U2, U3 are dry contacts that require power. See “Wiring guide — IAQ Equipment (EIM or Thermostat)” beginning on page 115.

equipment installed.

Normally Open: U1, U2 or U3 will normally be open and will close when the thermostat calls for dehumidification.

Normally Closed: U1, U2 or U3 will normally be closed and will open when the thermostat calls for dehumidification.

Number of Universal Outputs:

THX9321 Thermostat: U1 and U2 terminals Equipment Interface Module (EIM): U1, U2 and U3 terminals

Dehumidification Equipment is set to A/C with Low Speed Fan or A/C with High Speed Fan.

The thermostat uses the cooling system to reduce humidity by lowering the temperature up to 3° F below the current cool setpoint until the desired humidity level is reached.

The thermostat keeps the temperature below the cooling setpoint until the desired humidity level is reached.

0° F is only an option when ISU 9000 Dehumidification Equipment is set to A/C with Low

Speed Fan.

page 70.

High Humidity Comfort Reset

High Humidity Comfort Reset with Minimum On Time

Reheat

Reheat with Minimum On Time

9090 Dehumidification

68-0311—01 40

Minimum On Time

5 to 15 minutes 10 minutes Commercial No This option ensures that the compressor runs long

enough to effectively reduce humidity when the cooling equipment is cycled on. The compressor will run for the “minimum on time” you set until the desired humidity level is reached.

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

9100 High Humidity

9120 System Modes

9130 Dehumidifier Fan

9140 Dehumidifier Lockout Dehumidifier Allowed when Cool

9180 Dehumidification

9190 Dehumidification

9200 Dehumidification

Comfort Reset Setting

Allowing Dehumidification

Control

Away Mode

Away Mode - Fan Control

Away Mode - Low Limit Temperature Setting

Away Mode Temperature Setting

Away Mode Dehumidification Setting

1° F to 5° F 2° F Commercial No The thermostat uses the cooling system to reduce

Check box on screen for each:

Heat Cool Off

Thermostat Controls Fan Equipment Controls Fan

is Running

Dehumidifier Not Allowed when Cool is Running

Not Allowed Allowed

Automatic On Circulate

70° F to 80° F 76° F Both No If the cooling system is used to control humidity

70° F to 99° F 85° F Both No The temperature maintained while Dehumidification

40% to 70% (in 5% increments) 65% Both No The desired humidity level while Dehumidification

Cool

Default varies based on heating/cooling equipment selected

Thermostat Controls Fan

Dehumidifier Allowed when Cool is Running

Not Allowed Both No This ISU is NOT displayed when ISU 9000

Automatic Both No The On and Circulate settings may re-introduce

Residential, Commercial

or Both

Both No This ISU is only displayed when ISU 9000

Requires

EIM Notes

humidity by lowering the temperature up to 5° F below the current cool setpoint until the desired humidity level is reached.

The thermostat keeps the temperature below the cooling setpoint until the desired humidity level is reached.

Dehumidification Equipment is set to Dehumidifier.

Click boxes on screen to select which system modes allow dehumidification. If a box is NOT checked, the thermostat will NOT allow dehumidification to operate in that mode.

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. If the system is in Auto mode, the thermostat will allow dehumidification if the last call was for cool.

Off: The thermostat will allow dehumidification when the system setting is Off.

See “Dehumidification - Residential” beginning on page 66 or “Dehumidification - Commercial” beginning on page 70.

Dehumidification Equipment is set to Dehumidifier.

Thermostat Controls Fan: The thermostat turns on the dehumidifier and the fan when dehumidification is needed.

Equipment Controls Fan: The thermostat turns on the dehumidifier when dehumidification is needed. The fan is controlled by the equipment.

Dehumidification Equipment is set to Dehumidifier.

Dehumidifier Allowed when Cool is Running: Dehumidifier can run when the cooling system is on.

Dehumidifier Not Allowed when Cool is Running: Dehumidifier can NOT run when the cooling system is on.

Dehumidification Equipment is None.

ISU 9190 to 9200 are only displayed when ISU 9180 Dehumidification Away Mode is Allowed.

See “Dehumidification Away Mode” beginning on page 69.

humidity into the living space.

while Dehumidification Away Mode is active, the thermostat allows the cooling system to lower the indoor air to the Low Limit Temperature Setting to reach the dehumidification setting at ISU 9200.

Away Mode is active and the desired humidity level is satisfied.

Away Mode is active.

41 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

9210 Dehumidifier Filter

10000 Ventilation Type None

10020 What Terminals are

10050 Ventilation Control

10060 Ventilation Fan

10090 Number of Bedrooms 1 to 6 2 bedrooms Residential No This ISU is only displayed when ISU10050

10090 Size of House 1000 to 5000 sq. ft. (in 100 sq. ft.

10100 Enter Equipment

10120 Ventilation Percent

Replacement Reminder

Wired to the Ventilator?

What Terminals are Wired to the Fresh Air Damper?

Note: Installer Setup Name varies depending on the ventilation equipment installed.

Method

Control

Ventilation Rate

On Time

Off 30, 60, Calendar Days 3 to 12 Calendar Months (in 1

month increments)

ERV / HRV Passive (Fan Only) Fresh Air Damper

None U1 U2 U3

ASHRAE Percent On Time

Thermostat Controls Fan Equipment Controls Fan

increments)

(90 to 460 sq. m.)

30 to 350 CFM (in 5 CFM increments)

(850 - 9900 LPM)

10% to 100% (in 10% increments)

Off Both No

None Both No None: The thermostat does not control ventilation.

Thermostat defaults to the next unused universal terminal (U1, U2, U3).

Defaults to

ASHRAE

when ISU 1010 Application is set to Residential.

Percent on Time is the only choice when ISU 1010 Application is set to Commercial.

Thermostat Controls Fan

1000 sq. feet Residential No This ISU is only displayed when ISU10050

150 Residential No This ISU is only displayed when ISU10050

30% Both No The thermostat operates ventilation equipment

Residential, Commercial

or Both

Both No Number of Universal Outputs:

Both No See “Ventilation Control Methods (ISU 10050)”

Both No Thermostat Controls Fan: The thermostat turns on

Requires

EIM Notes

ERV/HRV: The thermostat controls an Energy Recovery Ventilator or Heat Recovery Ventilator for ventilation.

Passive (Fan Only): The thermostat turns on the fan for ventilation.

Fresh Air Damper: The thermostat turns on the fan and opens a fresh air damper for ventilation.

THX9321 Thermostat: U1 and U2 terminals Equipment Interface Module (EIM): U1, U2 and U3 terminals

U1, U2, U3 are dry contacts that require power. See “Wiring guide — IAQ Equipment (EIM or Thermostat)” beginning on page 115.

beginning on page 74.

the ventilation equipment and the fan when ventilation is needed.

Equipment Controls Fan: The thermostat turns on the ventilation equipment when ventilation is needed. The fan is controlled by the equipment.

Ventilation Control Method is set to ASHRAE (Residential only).

based on a percentage entered in the installer setup (ISU 10120). For example, if Percent on Time is set to 50%, the ventilation equipment will run at random times during a 1 hour period until it reaches a 50% run time (approximately 30 minutes).

68-0311—01 42

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

10125 Ventilation Priority Lockouts are Priority

ASHRAE is Priority

10130 Ventilation Low

10130 Ventilation High

10130 Ventilation High Dew

10140 Lockout Ventilation

Temperature Lockout

Point Lockout

on Humidification or Dehumidification Calls

Off

-20° F to 40° F (in 5° F increments)

Off 80° F to 110° F (in 5° F

increments)

Off 65° F to 85° F (in 5° F increments)

Off On

Lockouts are Priority

Off Both No Requires an outdoor sensor.

Off Both No Requires a Wireless Outdoor Sensor (sense outdoor

Off Both No This feature is used to help reach the user's desired

Residential, Commercial

or Both

Both No Lockouts are Priority: The thermostat places a

Requires

EIM Notes

priority on lockouts versus the ASHRAE 62.2 ventilation standard. The thermostat will not run ventilation during the following lockout conditions (if configured) unless you manually call for ventilation:

• Lockout Ventilation during Outdoor Conditions

(ISU 10130)

• Lockout Ventilation on Humidification or

Dehumidification Calls (ISU 10140)

• Lockout Ventilation during “Sleep” (Residential)

or “Unoccupied” (Commercial) program periods. Note: This option is set by the user on the Ventilation screen in the Menu.

ASHRAE is Priority: ASHRAE requires additional ventilation following a long off cycle. The thermostat meets the ASHRAE 62.2 ventilation standard by running additional ventilation when outdoor conditions are favorable. If ASHRAE cannot be met when outdoor conditions are favorable, the thermostat will override the outdoor lockouts and run ventilation. When using this option, it is recommended to increase the rate (CFM) of the ventilation equipment to meet the ASHRAE 62.2 ventilation standard in a shorter run time.

Notes:

• ISU 10140 “Lockout Ventilation on

Humidification or Dehumidification Calls” is not an option when you select “ASHRAE is Priority”.

• The ability to lockout ventilation during the

“Sleep” or “Unoccupied” program periods is not an option when you select “ASHRAE is Priority”.

This ISU is only displayed when ISU 10000 Ventilation Type is set to ERV / HRV or Fresh Air Damper.

See “Ventilation — Outdoor Condition Lockouts (ISU 10130)” beginning on page 75.

This ISU is only displayed when ISU 10000 Ventilation Type is set to ERV / HRV or Fresh Air Damper.

See “Ventilation — Outdoor Condition Lockouts (ISU 10130)” beginning on page 75.

humidity).

This ISU is only displayed when ISU 10000 Ventilation Type is set to ERV / HRV or Fresh Air Damper.

See “Ventilation — Outdoor Condition Lockouts (ISU 10130)” beginning on page 75.

humidity level by not allowing the ventilation equipment to run during a call for humidification or dehumidification.

Off: Ventilation is allowed to run during a call for humidification or dehumidification.

On: Ventilation is NOT allowed to run during a call for humidification or dehumidification.

43 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

10160 Ventilate on High

10170 Ventilator Core

10170 Ventilator Filter

11000 Number of UV

11050 UV Bulb 1

11050 UV Bulb 2

12000 Installer Custom

13000 Heat Delta T

13010 Cool Delta T

13015 Set Advanced Delta T

13020 Allow Delta T

Indoor Humidity

Cleaning Reminder

Devices

Replacement Reminder

Note: “1” is not displayed if there is only 1 UV Bulb

Replacement Reminder

Reminders

Diagnostics

Diagnostic Options

Diagnostics During Humidification

Off On (Heat Mode Only)

Off 3, 6, 9, 12 Calendar Months

0, 1, 2 0 Both No Press the up/down arrows to select the number of

Off, 6, 12, 24 Calendar Months Off Both No

View / Edit Custom Reminders Add Custom Reminders

Off On

No Yes

On (Heat Mode Only)

Off Both No

None Both No See “Customizable Reminders” beginning on

On Both Yes This ISU is only displayed when the thermostat is

No Both Yes See “Advanced Options for Delta T Diagnostics”

Yes Both Yes This ISU is only displayed when ISU 13015 Set

Residential, Commercial

or Both

Both No This ISU is only displayed when ISU 10000

Requires

EIM Notes

Ventilation Type is set to ERV / HRV.

Off: The humidity level has no effect on ventilation.

On: The thermostat removes excess humidity by turning on the ventilator when the indoor humidity rises 10% above the user's humidification setting. The thermostat must be in the heat mode to ventilate on high humidity.

UV devices installed in the system. Some systems may have two UV devices, one for the A-Coil and another for Air Treatment. A replacement reminder can be setup for each one. Select 0 if no UV devices are installed.

page 79.

setup for a Non-Zoned Forced Air Heating System and the thermostat is setup for 10K Discharge and Return Air Sensors at ISU 5000 (What Sensors are WIRED to your System?)

This ISU is NOT displayed when the thermostat is setup for an External Fossil Fuel Kit or an Economizer (ISU 2190 and 2220).

See “Delta T Diagnostics” beginning on page 50.

setup for a Non-Zoned Cooling System and the thermostat is setup for 10K Discharge and Return Air Sensors at ISU 5000 (What Sensors are WIRED to your System?)

This ISU is NOT displayed when the thermostat is setup for an Economizer (ISU 2220).

See “Delta T Diagnostics” beginning on page 50.

beginning on page 53

Advanced Diagnostic Options is set to Yes.

No: The thermostat does NOT monitor Delta T of the system during a call for humidification.

Yes: The thermostat monitors Delta T of the system during a call for humidification.

68-0311—01 44

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

13030 Allow Delta T

13040 Allow Delta T

13050 Allow Heat Delta T

13050 Maximum Setting

13060 Allow Heat Delta T

13060 Maximum Setting

13070 Allow Heat Delta T

13070 Maximum Setting

13080 Allow Heat Delta T

13080 Maximum Setting

Diagnostics During Dehumidification

Diagnostics During Ventilation

Diagnostics when Indoor Temperature is [Indoor Temperature Range]

Diagnostics when Indoor Humidity is [Indoor Humidity Range]

Diagnostics when Outdoor Temperature is [Outdoor Temperature Range]

Diagnostics when Outdoor Humidity is [Outdoor Humidity Range]

No Yes

Minimum Setting

No Limit 35° F to 115° F (in 5° F

increments)

No Limit 40° F to 120° F (in 5° F

increments)

Minimum Setting

No Limit 0% to 95% (in 5% increments)

No Limit 5% to 100% (in 5% increments)

Minimum Setting

No Limit

-50° F to 135° F (in 5° F increments)

No Limit

-45° F to 140° F (in 5° F increments)

Minimum Setting

No Limit 0% to 95% (in 5% increments)

No Limit 5% to 100% (in 5% increments)

Yes Both Yes This ISU is only displayed when ISU 13015 Set

No Limit (Always)

Residential, Commercial

or Both

Both Yes This ISU only applies to Heating.

Both Yes

Both Yes This ISU only applies to Heating.

Both Yes

Both Yes This ISU only applies to Heating.

Both Yes

Both Yes This ISU only applies to Heating.

Both Yes

Requires

EIM Notes

Advanced Diagnostic Options is set to Yes.

No: The thermostat does NOT monitor Delta T of the system during a call for dehumidification.

Yes*: The thermostat monitors Delta T of the system during a call for dehumidification.

* Default is Yes for Dehumidifiers and A/C with High Speed Fan. The thermostat does NOT monitor Delta T Diagnostics during dehumidification if it is setup for A/C with Low Speed Fan, Hot Gas Bypass or Reheat.

Advanced Diagnostic Options is set to Yes.

No: The thermostat does NOT monitor Delta T of the system during a call for ventilation.

Yes: The thermostat monitors Delta T of the system during a call for ventilation.

This ISU is only displayed when ISU 13015 Set Advanced Diagnostic Options is set to Yes.

The thermostat monitors Delta T of the system ONLY when the indoor temperature is within a certain range. Set to No Limit to monitor Delta T during all indoor temperature conditions.

This ISU is only displayed when ISU 13015 Set Advanced Diagnostic Options is set to Yes.

The thermostat monitors Delta T of the system ONLY when the indoor humidity is within a certain range. Set to No Limit to monitor Delta T during all indoor humidity conditions.

This ISU is only displayed when ISU 13015 Set Advanced Diagnostic Options is set to Yes.

The thermostat monitors Delta T of the system ONLY when the outdoor temperature is within a certain range. Set to No Limit to monitor Delta T during all outdoor temperature conditions.

This ISU is only displayed when ISU 13015 Set Advanced Diagnostic Options is set to Yes.

The thermostat monitors Delta T of the system ONLY when the outdoor humidity is within a certain range. Set to No Limit to monitor Delta T during all outdoor humidity conditions.

45 68-0311—01

THX9321 PRESTIGE® 2.0 AND THX9421 PRESTIGE® IAQ 2.0 WITH EIM

Table 2. Installer Setup (ISU) Table. (Continued)

ISU

Number Installer Setup Name Settings Default

13090 Allow Backup Heat

13090 Maximum Setting

13100 Allow Backup Heat

13100 Maximum Setting

13110 Allow Backup Heat

13110 Maximum Setting

13120 Allow Backup Heat

13120 Maximum Setting

13130 Allow Cool Delta T

13130 Maximum Setting

13140 Allow Cool Delta T

13140 Maximum Setting

Delta T Diagnostics when Indoor Temperature is [Indoor Temperature Range]

Delta T Diagnostics when Indoor Humidity is [Indoor Humidity Range]

Delta T Diagnostics when Outdoor Temperature is [Outdoor Temperature Range]

Delta T Diagnostics when Outdoor Humidity is [Outdoor Humidity Range]

Diagnostics when Indoor Temperature is [Indoor Temperature Range]

Diagnostics when Indoor Humidity is [Indoor Humidity Range]

Minimum Setting

No Limit 35° F to 115° F (in 5° F

increments)

No Limit 40° F to 120° F (in 5° F

increments)

Minimum Setting

No Limit 0% to 95% (in 5% increments)

No Limit 5% to 100% (in 5% increments)

Minimum Setting

No Limit

-50° F to 135° F (in 5° F increments)

No Limit

-45° F to 140° F (in 5° F increments)

Minimum Setting

No Limit 0% to 95% (in 5% increments)

No Limit 5% to 100% (in 5% increments)

Minimum Setting

No Limit 35° F to 115° F (in 5° F

increments)

No Limit 40° F to 120° F (in 5° F

increments)

Minimum Setting

No Limit 0% to 95% (in 5% increments)

No Limit 5% to 100% (in 5% increments)

No Limit (Always)

Residential, Commercial

or Both

Both Yes This ISU only applies to Backup Heat.

Both Yes

Both Yes This ISU only applies to Backup Heat.

Both Yes

Both Yes This ISU only applies to Backup Heat.

Both Yes

Both Yes This ISU only applies to Backup Heat.

Both Yes

Both Yes This ISU only applies to Cooling.