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Honeywell THX9321 Prestige 2.0 System Installation Manual

Heat pump systems.
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THX9321 Prestige® 2.0
THX9421 Prestige® IAQ 2.0 with EIM
With wireless accessories
Control for up to 4 Heat/2 Cool heat pump systems or up to 3 Heat/2 Cool
conventional systems for residential and commercial applications.
Installation guide for:
• Prestige THX9321/9421 thermostat
• Equipment Interface Module (EIM)
• Portable Comfort Control
Quick start guide
1
Install thermostat ..........................................................page 3
2
3
Power optional accessories ................................................... 4
4
Link thermostat to wireless network ...................................... 5
5
6
Install optional sensors .......................................................... 7
7
Setup installer options ........................................................... 8
Wiring guides ..................................................................10-17
Key features ....................................................................18-25
Device replacement and specifications ..........................26-27
DISCONNECT POWER BEFORE INSTALLATION. Can cause electrical shock or equipment damage.
MERCURY NOTICE: If this product is replacing a control that contains mercury in a sealed tube, do not place the old control
in the trash. Contact the Thermostat Recycling Corporation at www.thermostat-recycle.org or 800-238-8192 for information on how
and where to properly and safely dispose of your old thermostat.
Must be installed by a trained, experienced technician. Read these instructions carefully. Failure to follow
these instructions can damage the product or cause a hazardous condition.
® U.S. Registered Trademark.
Copyright © 2012 Honeywell International Inc.
All rights reserved.
System
Installation
Guide
• Wireless Outdoor Sensor
• Wireless Indoor Sensor
• RedLINK
Internet Gateway
TM
69-2490-05

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   Summary of Contents for Honeywell THX9321 Prestige 2.0

  • Page 1: Table Of Contents

    Must be installed by a trained, experienced technician. Read these instructions carefully. Failure to follow these instructions can damage the product or cause a hazardous condition. ® U.S. Registered Trademark. Copyright © 2012 Honeywell International Inc. 69-2490-05 All rights reserved.

  • Page 2

    System Installation Guide Your Honeywell advantage 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. 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, cus- tomers 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. 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...

  • Page 3: Install Thermostat

    THX9321/9421 Prestige IAQ and RF EIM ® Install thermostat MCR29241 MCR32386 MCR32387 • THX9421: Mount the thermostat and wire to C and R terminals of the Equipment Interface Module (EIM), or to a separate 24 volt transformer (not provided). • THX9321: Install and wire as above if using EIM. If not, see pages 13-15. When the THX9321 thermostat is used with the EIM, the relays in the thermostat do not function. See pages 10-17 for detailed wiring guidelines Install Equipment Interface Module (if used) [If no EIM is used, skip to Section 3.] Use screws & anchors as appropriate for the mounting surface. Mount the EIM near the HVAC equipment, or on the equipment itself.

  • Page 4: Power Optional Accessories

    Install 2 fresh AA lithium batteries Install 2 fresh AAA alkaline batteries Install 3 fresh AA alkaline batteries RedLINK Internet Gateway ™ The Honeywell RedLINK Internet Gateway gives your customers remote access to home climate-control systems from any location with Internet access. Using a Web browser, users can review and adjust indoor temperature, system mode and other settings. The Gateway can also send alerts to as many as 6 email addresses if a problem occurs. Connect power cord to Connect RedLINK Gateway to a an electrical outlet not...

  • Page 5: Link Thermostat To Wireless Network

    THX9321/9421 Prestige IAQ and RF EIM ® Link thermostat to the wireless network (if used with an EIM or TrueZONE Wireless Adapter) Next, link all components and RedLINK accessories to the wireless network. ™ Initial powerup When the thermostat is first activated, it will lead you through the steps necessary to define and set up your system. The steps will change depending on the type of system and thermostat you're installing. Setup options for THX9321 Setup options for THX9421 If non-zoned system: If non-zoned system: • Setup for thermostat only •...

  • Page 6: Link Optional Accessories To Wireless Network

    System Installation Guide Link optional accessories to wireless network While the Add Device screen is displayed on the thermostat, press and release the CONNECT button on each wireless device, as described below. Accessories need to be at least 2 feet away from the thermostat or EIM during the linking process. Press DONE after all devices have been linked If you need to return to the "Add Device" screen to add devices later, press MENU and scroll down to press INSTALLER OPTIONS.

  • Page 7: Install Optional Sensors

    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. M32936A Setup Installer options (ISU) To setup the thermostat, press MENU and scroll down to press 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. After you enter the password, press CREATE SETUP to setup the thermostat. A brief summary of installer options follows (pages 8–9). You can download a complete list of all options at http://customer.honeywell.com. 69-2490—05...

  • Page 8: Setup Installer Options

    System Installation Guide Setup Installer options (ISU) - continued 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 setup and test Delta T diagnostics.

  • Page 9

    THX9321/9421 Prestige IAQ and RF EIM ® Installer options (ISU) - continued Thermostat functions require an EIM (see page 3). marked in gray below Function Function 5090 Terminals Wired to Discharge Air Sensor 9120 System Modes Allowing Dehumidification 5100 Discharge Air Sensor Type 9130 Dehumidifier Fan Control 5110...

  • Page 10

    System Installation Guide EIM wiring guide — conventional systems Typical wiring of a conventional system with up to 3-stage heat and 2-stage cool with one transformer. FURNACE TRANSFORMER TO THERMOSTAT HEAT STAGE 1 CONV POWER HEAT STAGE 2 HEAT COOL HEAT STAGE 3 STATUS LEDS COMPRESSOR STAGE 1 COMPRESSOR STAGE 2 JUMPERS CONNECT OPTIONAL SENSORS TO S1 AND S2 TERMINALS SENSORS (MAX.

  • Page 11

    THX9321/9421 Prestige IAQ and RF EIM ® EIM wiring guide — heat pump systems Typical wiring of a heat pump system with up to four-stage heat and two-stage cool with one transformer. TO THERMOSTAT CHANGEOVER VALVE HEAT PUMP BACKUP HEAT POWER STAGE 1 AUX1 HEAT AUX1 BACKUP HEAT AUX2 COOL AUX2 STAGE 2 STATUS LEDS COMPRESSOR STAGE 1 COMPRESSOR STAGE 2...

  • Page 12

    System Installation Guide EIM wiring guide — geothermal radiant heat Typical wiring for geothermal radiant heat, geothermal forced-air, and backup heat with one transformer. See page 19 for operation. TO THERMOSTAT CHANGEOVER VALVE HEAT PUMP BACKUP HEAT POWER STAGE 1 AUX1 HEAT AUX1 BACKUP HEAT AUX2 COOL AUX2 STAGE 2 STATUS LEDS COMPRESSOR STAGE 1 COMPRESSOR STAGE 2 FAN RELAY COMPRESSOR MONITOR OR ZONE PANEL...

  • Page 13

    THX9321/9421 Prestige IAQ and RF EIM ® Thermostat wiring guides — Prestige THX9321 Typical wiring of a 3-heat / 2-cool heat Typical wiring of a 2-heat / 2-cool con- pump system with one transformer ventional system with one transformer Transformer Transformer HEAT STAGE 1 CHANGEOVER VALVE AUX/E HEAT STAGE 2 BACKUP HEAT COMPRESSOR STAGE 1 COMPRESSOR STAGE 1 COMPRESSOR STAGE 2 COMPRESSOR STAGE 2 FAN RELAY FAN RELAY COMPRESSOR MONITOR...

  • Page 14

    System Installation Guide Prestige THX9321 or EIM: Using universal relays to control heating or cooling Powering universal relay with system Powering universal relay with separate transformer (THX9321 shown) heating transformer (THX9321 shown) Transformer Transformer HEAT STAGE 3 or COOL STAGE 3 or COOL STAGE 4 HEAT STAGE 3 Transformer MCR32952A MCR32953 U1/U2/U3 terminals are normally open dry contacts when set up for a stage of heating or cooling. You must install a field jumper if the stage of heating or cooling is powered by system transformer.

  • Page 15

    THX9321/9421 Prestige IAQ and RF EIM ® Wiring guide — IAQ equipment (EIM or thermostat) "U" terminals can be used for humidification, dehumidification or ventilation. With power supply Without power supply Typical hookup of powered humidifier. Typical hookup of non-powered humidifier. NON-POWERED HUMIDIFIER POWERED FIELD INSTALLED HUMIDIFIER JUMPER BETWEEN R AND U1 24 VAC M32393...

  • Page 16: Wiring Guides

    System Installation Guide Economizer Module wiring guides Typical wiring of a W7220 Economizer Module for a heat pump system, using a Prestige THX9321 thermostat or Equipment Interface Module. Rooftop Unit AUX AUX 2 W7220 Economizer Module (See wiring guidelines provided with the product) SD-O/B E-GND AUX AUX 2 Transformer Thermostat/EIM MCR32959A Typical wiring of a W7220 Economizer Module for a conventional system, using a Prestige THX9321 thermostat or Equipment Interface Module. Rooftop Unit W7220 Economizer Module (See wiring guidelines provided with the product) SD-O/B E-GND Transformer...

  • Page 17

    THX9321/9421 Prestige IAQ and RF EIM ® Economizer Module wiring guides Typical wiring of a W7213/W7214 Economizer Module for a heat pump system, using a Prestige THX9321 thermostat or Equipment Interface Module. Rooftop Unit AUX AUX 2 W7213/W7214 Economizer Module (See wiring guidelines provided with the product) O or B 2 & 5 AUX AUX 2 Transformer Thermostat/EIM MCR32956A Typical wiring of a W7212 Economizer Module for a conventional heating system, using a Prestige THX9321 thermostat or Equipment Interface Module.

  • Page 18: Key Features

    System Installation Guide Economizer and TOD operation (ISU 2220) Commercial use only The Economizer can greatly reduce energy costs if configured properly. In some climates the cooling system may run hundreds of hours, when it may not be required to maintain indoor comfort. In some conditions, ventilation with outdoor air can achieve the same level of comfort at lower cost. Tables below explain how the Economizer feature maintains comfort while minimizing costs. A-L/A terminal: Thermostat Mode Equipment Operation Economizer Occupied Heat/Cool/Fan running Occupied temporarily Heat/Cool/Fan running Occupied Heat/Cool/Fan NOT running Occupied temporarily Heat/Cool/Fan NOT running Pre-occupancy purge Fan running Unoccupied...

  • Page 19

    THX9321/9421 Prestige IAQ and RF EIM ® Heat pump with outdoor temperature lockouts Outdoor temperature lockouts are optional. See Installer Setup options (ISU 3120). Backup heat allowed to run with heat pump (see table below) Heat pump only Backup heat lockout Heat pump with backup heat as needed * Compressor lockout Backup heat only No backup heat unless indoor temperature drops to selected Backup Heat Differential setting, or Backup Heat...

  • Page 20: Normal Operation

    System Installation Guide Basic and Advanced Temperature Control Options (ISU 3010) Basic Options: The Installer Setup displays basic 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. Finish With High Heat or Cool Stage - When a multi-stage heating or cooling system is used, this feature keeps the high stage of the heating or cooling equipment running until the desired setpoint is reached.

  • Page 21

    THX9321/9421 Prestige IAQ and RF EIM ® Humidification The thermostat reads the indoor humidity level and allows the user to set a humidification setting with or without window protection. The thermostat can be setup to control a humidifier in any system mode (Heat, Off, Cool [ISU 8060]). A discharge air sensor is required to humidify in the cool mode. Humidification Control Options: (ISU 8070) • Humidify Only When Heat is On • Humidify Only When Fan is On • Humidify on Demand: Thermostat Controls Fan • Humidify on Demand: Humidifier Controls Fan Residential dehumidification The thermostat reads the indoor humidity level and allows the user to set a dehu- midification setting. The thermostat controls the humidity level using the cooling system or a whole house dehumidifier. Dehumidification Equipment Options: (ISU 9000) • A/C with Low Speed Fan • A/C with High Speed Fan • Whole House Dehumidifier When set for A/C with Low Speed Fan or A/C with High Speed Fan, an overcool- ing limit can be set from 0° to 3° F (ISU 9070). The thermostat uses the cooling system to reduce humidity by lowering the temperature up to 3° F below the current cool setpoint until the the desired humidity level is reached. If set for A/C...

  • Page 22

    System Installation Guide Commercial dehumidification The thermostat reads the indoor humidity level and allows the user to set a dehu- midification setting. The thermostat controls the humidity level using the cooling system or a dehumidifier. Dehumidification Equipment Options: (ISU 9000) • A/C with Low Speed Fan • A/C with High Speed Fan • Hot Gas Bypass • Dehumidifier When set for A/C with Low Speed Fan, A/C with High Speed Fan or Hot Gas Bypass, there are six methods of dehumidification control: (ISU 9080) See descriptions of each, below. 1 Basic: This option uses the cooling system to reach the desired humidity level. Minimum On Time, High Humidity Comfort Reset and Reheat are not used with this method. This setting is commonly used if your dehumidification equipment is Hot Gas Bypass. 2 Minimum On Time (ISU 9090): 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...

  • Page 23

    THX9321/9421 Prestige IAQ and RF EIM ® Southern Dehumidification Away Mode Southern Dehumidification Away Mode protects the home when unoccupied for long periods of time during hot and humid weather by maintaining the desired humidity and temperature settings. Southern Dehumidification Away Mode options: (ISU 9180 to 9200) • Fan Control: Auto, On or Circulate • Low Limit Temperature Setting: The thermostat allows the cooling system to lower the indoor air to the Low Limit Temperature Setting to reach the Dehumidification Setting (ISU 9200). • Temperature Setting: Temperature that is maintained when dehumidification is not needed. • Dehumidification Setting: The desired humidity level while Southern Dehumidification Away Mode is active. You can control humidity with a dehumidifier or a cooling system. If a cooling system is used, humidity is controlled by cooling indoor air to the Low Limit Temperature Setting. When the desired humidity level is reached, the system will maintain the Southern Dehumidification Away Mode temperature setting. Ventilation The thermostat can be set for the following ventilation types: (ISU 10000) • ERV/HRV • Passive (Fan Only) • Fresh Air Damper Ventilation Control Methods (ISU 10050) Ventilation can be setup to meet ASHRAE or Percent On Time settings. To meet these settings, the thermostat will ventilate during calls for heat, cool and fan. If...

  • Page 24: Temperature Control

    System Installation Guide Indoor sensor operation Temperature control The thermostat can be set to respond to its internal temperature sensor, or to an option- al remote indoor sensor. If multiple sensors are used, the thermostat will respond to an average of temperatures detected at each sensor. Humidification control If optional remote indoor sensors are installed, you can choose which sensor you want to use for humidification control. You can use a different sensor for dehumidifica- tion. Dehumidification control If optional remote indoor sensors are installed, you can choose which sensor you want to use for dehumidification con- trol. For example, you can use one sensor for humidification control, and another for dehumidification. Wireless indoor sensor Battery level indicators (when batteries are inserted) Good: Status light flashes green for 5 seconds.

  • Page 25

    THX9321/9421 Prestige IAQ and RF EIM ® Alerts and diagnostics Maintain close contact with your customers by providing more comfort and effi- ciency with alerts and diagnostics. Alerts and reminders can notify customers when maintenance or service is needed, and display your contact information to make it easy for them to reach you. The following are only a few of many options. Check the thermostat's on-screen menus for more. Alerts Log MENU > INSTALLER OPTIONS > DATA LOGS > ALERTS LOG The thermostat saves the most recent 25 alerts. It records the date, time, alert status (snoozed, dismissed, recovered), and diagnostic information to help you identify and correct problems. User Interactions Log MENU > INSTALLER OPTIONS > DATA LOGS > USER INTERACTIONS LOG Check this log to find out if a problem was caused by an accidental user error.

  • Page 26: Device Replacement And Specifications

    System Installation Guide Replacing system components To replace an Equipment Interface Module (EIM) Follow steps below to disconnect the thermostat and RedLINK accessories. See pages 5-6 to re-link devices. At the Thermostat 1 Press MENU > INSTALLER OPTIONS, then enter date code when prompted (printed on back of thermostat). Or press MENU > EQUIPMENT STATUS to find the date code. 2 Scroll down to select WIRELESS DEVICE MANAGER. 3 Press REMOVE DEVICE, then select THIS THERMOSTAT to remove. At the Portable Comfort Control Press and hold in lower right...

  • Page 27

    THX9321/9421 Prestige IAQ and RF EIM ® Specifications & replacement parts Operating Ambient Temperature Thermostat: 32 to 120° F (0 to 48.9° C) Portable Comfort Control: 32 to 120° F (0 to 48.9° C) Wireless Outdoor Sensor: -40 to 140° F (-40 to 60° C) Wireless Indoor Sensor: 0 to 120° F (-17.8 to 48.9° C) – For Optimal Battery Life: 35 to 114° F (1.7 to 45.6° C) Equipment Interface Module: -40 to 165° F (-40 to 73.9° C) Return Air Sensor: 0 to 200° F (-17.8 to 93.3° C) Discharge Air Sensor: 0 to 200° F (-17.8 to 93.3° C) RedLINK Internet Gateway: 32 to 120° F (0 to 48.9° C) Operating Relative Humidity Thermostat: 5% to 90% (non-condensing) Portable Comfort Control: 5% to 90% (non-condensing) Wireless Outdoor Sensor: 0% to 100% (condensing)

  • Page 28

    For assistance please visit http://customer.honeywell.com, or call toll-free: 1-800-468-1502 (residential installation) • 1-888-245-1051 (commercial installation) Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 http://customer.honeywell.com ® U.S. Registered Trademark. © 2012 Honeywell International Inc. 69-2490—05 M.S. Rev. 02-12 Printed in U.S.A.

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