Prestige IAQ 2.0 Equipment Interface Module Kit Zoom

Prestige IAQ 2.0 Equipment Interface Module Kit


Brand: Honeywell

YTHM5421R1002 has been discontinued.
Direct Replacement:
SKU: YTHM5421R1010
Brand: Honeywell



Application: Gas
heat pump
forced warm air
hot water
steam or gravity
3 Heat/2 Cool
4 Heat/2 Cool Heat Pump
Mount: Vertical
Temperature Range (F): -40° to 165°F
Options: Works with Sensor
Fan Control
Power Method: Hardwired
Operating Humidity: 5 to 90% RH

Description for Honeywell YTHM5421R1002

The Prestige® IAQ 2.0 thermostat is a 2 wire high definition color touch screen thermostat, 7 day programmable, configurable for residential and light commercial, up to 4 heat / 2 cool heat pump and up to 3 heat / 2 cool conventional, controls humidification, dehumidification and ventilation, provides Delta T Alerts and Diagnostics, works with the Equipment Interface Module and RedLINK? accessories including the RedLINK? Internet Gateway, Portable Comfort Control, Wireless Outdoor Sensor and Wireless Indoor Sensor.


  • Control heating, cooling and IAQ equipment with only 2 wires at the thermostat. Heating, cooling and IAQ equipment wires to the Equipment Interface Module.
  • Configurable for residential and light commercial applications. Meets commercial code and is title 24 compliant.
  • Delta T Alerts and Diagnostics informs customers when their system is not operating as expected with instructions to contact the dealer. Provides a sense of security and greater comfort while generating repeat business.
  • All Prestige® IAQ 2.0 systems come standard with a return and discharge air temperature sensor to measure Delta T.
  • Alerts and User Interactions Log - Keeps a searchable history of alerts and setting changes to the thermostat to determine if there is a system malfunction or if the issue was caused by user error. Saves time in troubleshooting and points the technician in the right direction.
  • Customizable Service Reminders allow dealers to remind their customers when its time to call for service, when their warranty is expiring and to provide customized alerts.
  • USB port for transferring Installer Setup, Customizable Reminders, Custom Events and Holidays to multiple thermostats.
  • USB port for adding the dealer's full color business logo on the screen.
  • 3 assignable outputs to control humidification, dehumidification, ventilation and a stage of heating or cooling.
  • 2 assignable inputs can be used with wired Includes: THM5421R1013 Prestige IAQ 2.0 Equipment Interface Module and two C7735A1000 Duct Sensors

Prestige IAQ 2.0 Equipment Interface Module Kit

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