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Honeywell YTH9421C1002 Vision PRO® IAQ
Total Home Comfort System

$197.00

  • 4 Units in Stock


Product Description


  • MORE than just a programmable Thermostat

  • Controls Humidification, Dehumidification, Ventilation systems

  • Multi-Stage and Heat-Pump systems (Up to 4 Heat / 2 Cool)

  • 10 sq. inch, Backlit, Touchscreen Display

  • Includes Thermostat and Equipment Interface Module (EIM)

    • Honeywell series: VisionPRO® IAQ Total Home Comfort System
    Honeywell model YTH9421C1002
Compatible With:
  • Standard / Conventional Heating and Cooling systems

  • Heat-Pump systems

  • Gas, Oil, or Electric Heat with Air Conditioning

  • 2-wire, Heat Only system

  • Gas, Oil or Electric Warm Air

  • Heat Only system with FAN

  • 3- or 4-wire, Cool-Only system

  • 1 Heat / 1 Cool, Single Stage system

  • Single-stage (1-2 Transformers)

  • Heat Pump, single-stage, NO Auxiliary/Backup heat

  • Heat Pump, single-stage, WITH Auxiliary/Backup heat

  • Multi Stage, Up to 4 Heat / 2 Cool systems

  • Multi-stage (1-2 Transformers)

  • Heat Pump, multistage, NO Auxiliary/Backup heat

  • Heat Pump, multistage, WITH Auxiliary/Backup heat

  • Dual Fuel operation

  • Hot Water, Steam, and Gravity systems

  • High Efficiency Warm Air Furnace (90%+ efficiency)

  • 24 VAC systems

  • Non-Powered Humidifier

  • Powered Humidifier

  • Powered Whole House Dehumidifier

  • Variable Speed Blower for Dehumidification

  • Powered Ventilator

  • Fresh Air Damper / Non-Powered Ventilator

  • Fresh Air Intake for Ventilation

    •

Features
  • 4-in-1 control of temperature, humidification, dehumidification and ventilation from a single console for Total Home Comfort

  • EIM (Equiment Interface Module) for VisionPRO® IAQ system networks all of the Honeywell Indoor Air Quality systems to the thermostat

  • Indoor Air Quality (IAQ) solutions include whole-house components of Humidifiers, Dehumidifiers, Ventilators, Ultraviolet (UV) Lamp Treatment, Zone Control, Networking, and Remote Telephone Access

  • Contains all features of standard VisionPRO®, except arm chair programming

  • With the Telephone Access Module (TAM), the user can easily monitor and adjust the comfort levels in their home or vacation retreat via remote telephone access

  • Humidity Control - dehumidification can be controlled by the air conditioning system, the ventilation system or a dehumidifier

  • Automatically lowers humidity through all rooms, using air conditioning or a whole house dehumidifier to prevent dampness, stickiness or odors and even mildew if installed to control a whole house dehumidifier

  • Automatically raises humidity through all rooms, moisturizing air to prevent symptoms of dryness and to protect house structure, woodwork, artwork and fine furnishings if installed to control a whole house humidifier

  • Frost Control - with a humidifier and the outdoor temperature sensor, VisionPRO® IAQ can reduce the possibility of condensation or frost on exterior windows

  • Ventilation Control - high speed ventilator or system fan is activated on demand, by preset program, or high humidity while in the heat mode

  • Removes air contaminants and mold by exchanging the stale air in a house with fresh, filtered air if installed to control a whole house ventilator system

  • Controls ventilation via Honeywell Heat Recovery, Energy Recovery, or Fresh Air ventilators and damper components

  • Efficiently manage comfort levels room by room and lower utility bills if installed to control a whole house zoning system

  • Eradicates airborne pathogens like bacteria and mold from your home's duct system and cooling coils if installed to control a whole house UV lamp system

  • Smart change and check reminders notify when to service or replace air and furnace filters, humidifier pads, and UV bulbs

  • Energy Star® certified for strict energy efficiency guidelines


  • (Optional) ** Outdoor Temperature Sensor (C7089U1006)
    shows current outdoor temp on thermostat display; enables various functions

  • (Optional) ** Remote Indoor Temperature (C7189U1005)
    allows for separate location of temperature sensing; multiple sensors can be used

  • (Optional) ** Discharge Air Temperature Sensor (C7835A1009)
    monitors temperature in supply air duct and provides capacity control

  • (Optional) ** TotalZone® Zone Control Panel (TZ-4)
    controls 2-4 heating / cooling zones

  • (Optional) ** EnviraCOM™ Telephone Access Module(W8735D1009)
    monitor, access, receive alerts from system via telephone


    •

Specs


Product Specifications & Data

Stages Up to 4 Heat / 2 Cool
Program Options Up to 7 days
Changeover Auto / Manual (selectable)
Switch Positions (System) HEAT - OFF - COOL - AUTO - EM.HEAT
Switch Positions (Fan) AUTO - ON - CIRC
Switch Type Electronic
Power Method Hardwired Only
Voltage (electrical rating) 20 to 30 VAC
Frequency (hertz) 50 Hz / 60 Hz
Cycle Rate (cycles/hour) heating: 1-12 CPH
cooling: 1-6 CPH
Heat Current (amps) running: 1.0A
Cool Current (amps) running: 1.0A
Fan Current (amps) running: 0.6A
Sensor Element Thermistor
Operating Ambient Range (°F) 0°F to 120°F
Operating Ambient Range (°C) -18°C to 49°C
Setting Range, for Setpoints (°F) heat: 40°F to 90°F
cool: 50°F to 99°F
Setting Range, for Setpoints (°C) heat: 4.5°C to 32°C
cool: 10°C to 37°C
Accuracy +/- (°F) ± 1°F
Accuracy +/- (°C) ± 0.5°C
Operating Ambient Range (%RH) 5% to 90% RH, non-condensing
Setting Range, Dehumidification (%RH) 40% RH to 80% RH
Setting Range, Humidification (%RH) 10% RH to 60% RH
Display Type Digital
Display Size 10 square inches
Display Backlight Yes
Dimensions, Thermostat (in) height: 4 9/16"
width: 6"
depth: 1 1/4"
Dimensions, Thermostat (mm) height: 116 mm
width: 152 mm
depth: 32 mm
Dimensions, EIM (in) height: 7 1/4"
width: 4 1/2"
depth: 1 3/8"
Dimensions, EIM (mm) height: 185 mm
width: 116 mm
depth: 34 mm
Color Premier White®
Mounting Horizontal
Includes (TH9421C1004) Thermostat
(THM5421C1008) Equipment Interface Module (EIM)
screws / wall mounting anchors
mounting wall plate
* Optional Sensor(s) Outdoor Temp Sensor
Remote Indoor Temp
Discharge Air Temp Sensor
Comments Humidity Monitor
Humidification Control with Frost Protection
Dehumidification using Whole House Dehumidifier
Dehumidification using Air Conditioning with Fan
Features Change Reminders for:
 air filters
 humidifier pad
 UV lamp bulbs
EnergyStar® compliant

Wiring


Wiring Terminal Designations

Terminal 1: data to/from thermostat
Terminal 2: power from thermostat (24 VAC)
Terminal 3: common from thermostat (24 VAC)
Thermostat: R, Rc, Rh, C, W1 (O/B), W2 (AUX), W3 (AUX2), Y, Y2, G, L
Whole-House Ventilator: VNT1, VNT2
Whole-House Humidifier: HUM1, HUM2
Whole-House Dehumidifier: DHM1, DHM2
Outdoor Temp Sensor: OUT1, OUT2
Remote Indoor Temp Sensor: IN1, IN2
Discharge Air Temp Sensor: DATS1, DATS2

Optional


Accessories, Options & Add-Ons

ITEM Honeywell model #

Outdoor Temperature Sensor ( C7089U1006 )
Remote Indoor Temperature Sensor ( C7189U1005 )
Discharge Air Temperature Sensor (DAT) ( C7835A1009 )
EnviraCOM™ Telephone Access Module (TAM) ( W8735D1009 )
TotalZone® Zone Control Panel ( TZ-4 )
Cover plate ( 32003796-001 )

Systems


Compatible Honeywell Systems


Whole-House Humidifier

Help maintain comfortable humidity levels automatically with a Honeywell whole house humidifier. Proper humidity provides a more comfortable living environment at a lower temperature so you can turn down your thermostat for energy savings. Controlling humidity also means moisturizing dry air to prevent damage to hardwood floors and woodwork while preventing excess moisture.

HE365A1006 Powered Bypass Flow-through Humidifier with 18 GPD capacity
HE265A1007 Bypass Flow-through Humidifier with 17 GPD capacity
HE225A1006 Bypass Flow-through Humidifier with 12 GPD capacity
TrueSTEAM™ systems Direct-injection, 1:1 humidification delivery rate, systems from 6 to 12 GPD


Whole-House Dehumidifier

Multi-function dehumidifier works to automatically sense and lower humidity levels throughout all rooms in your home. Helps prevent mildew, dampness, stickiness and odors through high-capacity dehumidification, fresh air ventilation, and particulate filtration.

DH90A1007 90 Pint/day Whole House Dehumidifier


Whole-House Ventilation

Air in the home today can actually be more polluted than outdoor air due to contaminants trapped in the home, such as chemicals from incomplete combustion, off-gassing from pressed wood and building materials, cleaning agents and air 'de-odorizers', radon, CO, and CO2. Tighter building practices lead to a build-up of these pollutants in the home. Ventilation is the answer for improving air quality in homes today and Honeywell has efficient, effective solutions. Ventilators remove air pollutants by bringing in a continuous exchange of fresh, filtered air and sending out stale air.

HR150B1005 Perfect Window™ Heat Recovery Ventilator 150cfm with Defrost
HR200B1005 Perfect Window™ Heat Recovery Ventilator 200cfm with Defrost
ER150B2006 Perfect Window™ Energy Recovery Ventilator 150cfm with Defrost
ER150C2004 Perfect Window™ Energy Recovery Ventilator 150cfm No Defrost
ER200B2006 Heat Recovery Ventilator 200cfm with Defrost
ER200C2004 Heat Recovery Ventilator 200cfm No Defrost


Whole-House Zoning

Works with dampers in your ductwork that open and close as needed based on each zone's thermostat setting to let you control comfort in individual rooms (or zones). Contains system intelligence that communicates between zones for improved home comfort.

W8835A1004 EnviraZone™ Zone Panel
W8703A1003 Damper Interface Module
L7224C1004 120 Vac Electronic Aquastat®
L7248 Aquastat®
R7184 Oil Primary
EARD5 5” Round Damper NC Power Open/Spring Close
EARD6 6” Round Damper NC Power Open/Spring Close
EARD7 7” Round Damper NC Power Open/Spring Close
EARD8 8" Round Damper NC Power Open/Spring Close


Whole-House Communicating

Works with your existing telephone line to offer control of your home's temperature and indoor air quality over the phone. Call ahead to have the temp and humidity levels where you want them before you arrive. The system will also call to alert you if there's a problem (temperature drops), and you can add optional sensors for flood and door contact. Perfect for people with vacation or second homes.

THM5421C Equipment Interface Module Universal, 4H / 2C systems
T8635L1013 Communicating Thermostat for 3H / 3C systems
W8635A1006 Equipment Interface Module For 2H / 2C Conventional systems
W8635B1004 Equipment Interface Module For 2H / 2C Heat Pump systems
W8735A1005 EnviraCOM™ Serial Port Adapter
W8735B1003 Telephone Access Module
W8735D1009 Telephone Access Module 2 Ch. Communicating
W8735D1017 Telephone Access Module 4 Ch. Communicating
C7835A1009 Communicating Discharge Air Sensor


Whole-House Ultraviolet Treatment

When installed into your home’s heating and cooling system, Honeywell Ultraviolet (UV) Air Treatment systems zap surface mold and airborne pathogens passing by the UV light to make sure they don’t survive in your duct system and move into your home’s air. The high intensity energy from SmartLamp™ air treatment system has been proven to kill up to 87% of certain airborne bacteria passing by the lamp in a single pass.

UV100E2009 SmartLamp™ (UV) Dual Lamp, Return Air system
UV100E1043 SmartLamp™ (UV) Single Lamp, Return Air system
UV100E3007 SmartLamp™ (UV) Coil Irradiation system

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This product was added to our catalog on Tuesday 30 November, 1999.