Honeywell PRESTIGE THX9421- Manuals

THX9321/9421 Prestige ® IAQ and RF EIM 5 69-2490—03 MCR32941 CONNECT CONNECTED S2 S2 S1 S1 Link thermostat to the wireless network (if used with an EIM or TrueZONE Wireless Adapter) 4 Next, link all components and RedLINK ™ accessories to the wireless network. Initial powerup configuration When the ...

System Installation Guide 6 69-2490—03 MCR32943 MCR32942 CONNECT WIRELESS SETUP MCR32935 MCR32934 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 thermos...

THX9321/9421 Prestige ® IAQ and RF EIM 7 69-2490—03 Install optional sensors 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. 6 M28491 M28849A [If no sens...

System Installation Guide 8 69-2490—03 Setup Installer options (ISU) 7 Press CREATE SETUP to set all system settings one by one.Press VIEW/EDIT to select a specific function and make quick changes. TIP : You can use the thermostat USB port to download all system configuration and installer options, ...

System Installation Guide 10 69-2490—03 Typical wiring of a conventional system with up to 3-stage heat and 2-stage cool with one transformer. EIM wiring guide — conventional systems See following pages for additional thermostat wiring guidlines for heat pumps, geothermal systems and optional Econom...

THX9321/9421 Prestige ® IAQ and RF EIM 11 69-2490—03 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. 1 2 3 See guides on following pages for thermostat wiring and geothermal radiant heat wiring. Wire a maxi...

System Installation Guide 12 69-2490—03 EIM wiring guide — geothermal radiant heat Typical wiring for geothermal radiant heat, geothermal forced-air, and backup heat with one transformer. 1 2 3 U1, U2 or U3 terminals must be used for geothermal radiant heat (ISU 2010). Thermostat allows 2 stages of ...

THX9321/9421 Prestige ® IAQ and RF EIM 13 69-2490—03 Thermostat wiring guides — Prestige THX9321 Typical wiring of a 2-heat / 2-cool con-ventional system with one transformer Typical wiring of a 3-heat / 2-cool heat pump system with one transformer Typical wiring for geothermal radiant heat, geother...

THX9321/9421 Prestige ® IAQ and RF EIM 15 69-2490—03 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 non-powered humidifier. Typical hookup of powered humi...

System Installation Guide 16 69-2490—03 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. Typical wiring of a W7220 Economizer Module for a conventional system, using a Prestige THX93...

THX9321/9421 Prestige ® IAQ and RF EIM 19 69-2490—03 Heat pump with outdoor temperature lockouts Heat pump and backup heat operation Outdoor temperature lockouts are optional. See Installer Setup options (ISU 3120). Heat pump only Heat pump with backup heat as needed * Backup heat only Heat pump onl...

System Installation Guide 20 69-2490—03 Backup heat differential and upstage timer Basic and Advanced Temperature Control Options (ISU 3010) A backup heat differential and backup heat upstage timer can be set on any system that has more than one type of heating equipment. See installer setup options...

THX9321/9421 Prestige ® IAQ and RF EIM 21 69-2490—03 Humidification The thermostat can be set to control humidification in all modes (Heat, Off, Cool [ISU 8060]). A discharge air sensor is required to humidify in the cool mode. If both humidification and dehumidification are set up to be controlled ...

System Installation Guide 22 69-2490—03 Commercial dehumidification 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 five methods o...

THX9321/9421 Prestige ® IAQ and RF EIM 23 69-2490—03 Southern Dehumidification Away Mode This feature lowers the temperature up to 3° F below the setpoint as needed to prevent excessive humidity while the home is unoccupied.Southern Dehumidification Away Mode options: (ISU 9180 to 9200) • Fan Contro...

System Installation Guide 24 69-2490—03 Indoor sensor operation Wireless indoor sensor 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 temp...

THX9321/9421 Prestige ® IAQ and RF EIM 25 69-2490—03 Delta T Fault Sensitivity is adjustable in the Installer Setup (ISU 13180) Delta T diagnostics is only for non-zoned forced air systems. Alerts and diagnostics Maintain close contact with your customers by providing more comfort and effi-ciency wi...

System Installation Guide 26 69-2490—03 Replacing system components To replace an Equipment Interface Module (EIM) or thermostat Follow steps below to disconnect the thermostat and RedLINK accessories. See pages 5-6 to re-link devices. At the thermostat (skip this step if no EIM is used) 1 Press MEN...

THX9321/9421 Prestige ® IAQ and RF EIM 27 69-2490—03 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 1...

Regulatory information FCC Compliance Statement ( Part 15.19) ( USA only) This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1 This device may not cause harmful interference, and2 This device must accept any interference received, including inte...