YTH9421C1002 | Honeywell VisionPRO IAQ Touchscreen Thermostat & Module
YTH9421C1002 | Honeywell VisionPRO IAQ Touchscreen Thermostat & Module
YTH9421C1002 | Honeywell VisionPRO IAQ Touchscreen Thermostat & Module
    YTH9421C1002 | Honeywell VisionPRO IAQ Touchscreen Thermostat & Module
YTH9421C1002 | Honeywell VisionPRO IAQ Touchscreen Thermostat & Module

YTH9421C1002 | Honeywell VisionPRO IAQ Touchscreen Thermostat & Module

Part #: YTH9421C1002 Manufactured by: Honeywell
Regular price
$209.00
Sale price
$209.00
Regular price
1 in Stock
Condition: New-Surplus Original Box
Shipping calculated at checkout.
Product Overview
The YTH9421C1002 is a programmable thermostat system combining multi-stage HVAC control with intelligent humidity and vent...  Read more
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warranty
IQElectro 2-Year Warranty
Warranty for Product #: YTH9421C1002
IQElectro offers a free 2-year warranty on all products. You can trust that every purchase is a reliable investment in the future of your company. Warranty Terms
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IQElectro is Not an authorized distributor for Honeywell
Original Manufacturer's Warranty Not Covered, This Product is SURPLUS.

Product Description P/N: YTH9421C1002

Description / Specifications

Description 

The YTH9421C1002 is a touch screen temperature and ventilation control system designed for multi-stage HVAC systems with advanced humidity and air quality management. It includes a universal programmable thermostat and controller capable of managing heating, cooling, humidification, dehumidification, and ventilation.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Honeywell
Category
Controls & Indicators
Part Number YTH9421C1002
Subcategory Thermostat
Product Type Thermostat & Control System
Series VisionPRO
Control Stages 3 Heat / 2 Cool (Conventional), 4 Heat / 2 Cool (HP)
Programmability 7-Day
Interface Touchscreen
Mounting Style Horizontal
Voltage Low Voltage (24 VAC)
Power Consumption 12 to 30 W
Amperage 0.6 – 1 A
Changeover Type Auto / Manual
Fan Control Yes
Temperature Range (°F) 40°F to 99°F
Max Temp Differential 1°F
Operating Humidity 5% to 90% RH (non-condensing)
Dimensions (H x W x D) 4-9/16" x 6" x 1-1/4"
Wiring Terminals C, R, Rc, Rh, Y, Y2, G, L, 1, 2, 3, Vnt1, Vnt2, Dhm2
Sensor Support Indoor sensor compatible
Color Premier White
Product Status Discontinued (as of Sep 25, 2014)
Weight 0.14 lbs

  

 

Information About YTH9421C1002

The YTH9421C1002 is a discontinued Honeywell temperature control system, part of the VisionPRO series, phased out in September 2014. This 7-day programmable unit offers 3 Heat / 2 Cool stages for conventional systems and up to 4 Heat / 2 Cool for heat pumps. It connects with an Equipment Interface Module or EnviraZONE panel to centralize control over environmental comfort—including humidity levels and air exchange. The intuitive touchscreen interface and advanced dual-fuel compatibility made this model ideal for residential applications focused on energy efficiency and air quality.

Key Features:

  • Multi-Stage Control: Supports 3 Heat / 2 Cool (conventional) and 4 Heat / 2 Cool (heat pump) configurations.
  • Integrated Humidity Management: Controls humidification and dehumidification for year-round comfort.
  • Ventilation Control: Provides fresh air exchange and improved air quality across the home.
  • Touchscreen Interface: Large, user-friendly screen simplifies daily operation and scheduling.
  • 7-Day Programmable: Allows individual schedules for each day to maximize energy savings.
  • Advanced Dual-Fuel Logic: Optimizes performance in systems with both heat pumps and furnaces.
  • Sensor Compatibility: Works with indoor sensors to maintain even temperature distribution.
  • Auto Changeover: Seamlessly switches between heating and cooling modes.
  • Low Voltage Operation: Operates on standard 24 VAC systems with low power consumption.
  • Legacy Honeywell Reliability: Part of the trusted VisionPRO lineup for residential controls.

The YTH9421C1002 delivers integrated temperature, humidity, and ventilation management with a sleek touchscreen interface, ideal for whole-home comfort control.

IQElectro is not an authorized distributor.
QElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The YTH9421C1002 is a touch screen temperature and ventilation control system designed for multi-stage HVAC systems with advanced humidity and air quality management. It includes a universal programmable thermostat and controller capable of managing heating, cooling, humidification, dehumidification, and ventilation.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Honeywell
Category
Controls & Indicators
Part Number YTH9421C1002
Subcategory Thermostat
Product Type Thermostat & Control System
Series VisionPRO
Control Stages 3 Heat / 2 Cool (Conventional), 4 Heat / 2 Cool (HP)
Programmability 7-Day
Interface Touchscreen
Mounting Style Horizontal
Voltage Low Voltage (24 VAC)
Power Consumption 12 to 30 W
Amperage 0.6 – 1 A
Changeover Type Auto / Manual
Fan Control Yes
Temperature Range (°F) 40°F to 99°F
Max Temp Differential 1°F
Operating Humidity 5% to 90% RH (non-condensing)
Dimensions (H x W x D) 4-9/16" x 6" x 1-1/4"
Wiring Terminals C, R, Rc, Rh, Y, Y2, G, L, 1, 2, 3, Vnt1, Vnt2, Dhm2
Sensor Support Indoor sensor compatible
Color Premier White
Product Status Discontinued (as of Sep 25, 2014)
Weight 0.14 lbs

  

 

Information About YTH9421C1002

The YTH9421C1002 is a discontinued Honeywell temperature control system, part of the VisionPRO series, phased out in September 2014. This 7-day programmable unit offers 3 Heat / 2 Cool stages for conventional systems and up to 4 Heat / 2 Cool for heat pumps. It connects with an Equipment Interface Module or EnviraZONE panel to centralize control over environmental comfort—including humidity levels and air exchange. The intuitive touchscreen interface and advanced dual-fuel compatibility made this model ideal for residential applications focused on energy efficiency and air quality.

Key Features:

  • Multi-Stage Control: Supports 3 Heat / 2 Cool (conventional) and 4 Heat / 2 Cool (heat pump) configurations.
  • Integrated Humidity Management: Controls humidification and dehumidification for year-round comfort.
  • Ventilation Control: Provides fresh air exchange and improved air quality across the home.
  • Touchscreen Interface: Large, user-friendly screen simplifies daily operation and scheduling.
  • 7-Day Programmable: Allows individual schedules for each day to maximize energy savings.
  • Advanced Dual-Fuel Logic: Optimizes performance in systems with both heat pumps and furnaces.
  • Sensor Compatibility: Works with indoor sensors to maintain even temperature distribution.
  • Auto Changeover: Seamlessly switches between heating and cooling modes.
  • Low Voltage Operation: Operates on standard 24 VAC systems with low power consumption.
  • Legacy Honeywell Reliability: Part of the trusted VisionPRO lineup for residential controls.

The YTH9421C1002 delivers integrated temperature, humidity, and ventilation management with a sleek touchscreen interface, ideal for whole-home comfort control.

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