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  • HONEYWELL YTHX9421R5051 PRESTIGE 2-WIRE IAQ COMFORT SYSTEM KIT
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HONEYWELL YTHX9421R5051 PRESTIGE 2-WIRE IAQ COMFORT SYSTEM KIT


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1 new from $329.95

Specifications for this item
Brand Name Honeywell
Part Number YTHX9421R5051
UNSPSC Code 40100000

Wireless Thermostat Kits and AccessoriesControl KitsTouch-screen 1RZY2 features selectable 7-day ... Read full product description



Product Details

  • Shipping Weight: 2.7 pounds
  • ASIN: B005ZU295O
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (2 customer reviews)
  • Amazon Best Sellers Rank: #292,290 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Product Warranty: For warranty information about this product, please click here

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Product Description

Wireless Thermostat Kits and AccessoriesControl KitsTouch-screen 1RZY2 features selectable 7-day programmed or nonprogrammed operation, 3 heat/2 cool conventional or 4 heat/2 cool heat pump stages, plus humidity, dehumidification, and ventilation control. 3 wires to thermostat.Prestige HD Comfort Kit, RedLink Wireless, Stages Heat 4, Stages Cool 2, Temp. Settings per Day 4, Programs per Week 7, Terminal Designations R, C, System Switching Auto or Manual, Fan Switching Auto, On, Off, Circulate, Display High Definition Digital, Key Pad Lockout, Programmable Fan, Automatic Changeover, Power Method Hardwired, Voltage (AC) 24, Control Range (F) 32 to 120, Includes Equipment Interface Module, 2 Duct Sensors, Lithium Battery

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Most Helpful Customer Reviews

1 of 1 people found the following review helpful By bblhed on March 6, 2013
Verified Purchase
When I decided to add central air to my home I needed a thermostat that could do heat and AC with the two wires that I had connected to the old thermostat or tear into the walls to run new wires.

After getting over the initial sticker shock I talked to some heating people that I know and I was recommended this system or a very similar system that was just a variant on the same theme. I looked over all the systems and this one appeared to fit my needs best. I wanted heat, AC, scheduling, internet control, humidity and something that was smart (smart as in wouldn't waste energy getting to set-points too early or late).

I had to add on an outdoor combination temperature and humidity sensor along with an internet connector so this review is for the thermostat with those additional items and the added functionality that they provide.

Here are the high points that save me money. The thermostat knows my house and how long it will take to get the temperature to the set point so it does not waste fuel or electricity heating and cooling for too long. If the heat needs to come on 10 minuets or 50 minuets before the set time the thermostat knows and goes into recovery at the right time. This has allowed me to set my thermostat at 70 in the winter for the times I am awake and in the house and spend $50 to $70 over the dumb thermostat set at 68 all the time. Going on vacation, home from work all day the thermostat has settings for that as well so you can be comfortable if you are home or the heat can be set way down if you are not there. If we go out for the day we can turn the heat down then turn it up remotely from a smart phone with an app, or a web site on a computer [...]) when we are headed for home.
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1 of 1 people found the following review helpful By Andrew on November 6, 2012
Verified Purchase
works perfect on the Geo-thermal system and controls everything, much room to grow. It took me about 2-3 hours to install myself but i worked slow and looked at wiring diagrams to make sure it was done right.
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