Programmable thermostat for heat pump system - Page 2

razor02097 · 05-13-13, 06:41 AM

Quote:

Originally Posted by jlaw

I used a Honeywell VisionPro IAQ 7 day programmable on my split system heat pump with propane backup. This T-stat solved numerous problems for me. I installed the outside temp sensor, get rid of the mechanical temp sensor most times mounted on outside unit. It permits me to adjust my outside temp cutoff and also lets me monitor the outside temp on the T-stat. Allows control of humidifier, air cleaner and more. A great all in one thermostat.

VisionPRO IAQ | 7-Day Programmable Thermostat Comfort System

All-In-One Control - Controls temperature and Indoor Air Quality (IAQ) products such as humidification, dehumidification, ventilation, and air filtration monitoring - all from a single control in the living space

All-In-One Control - Controls temperature and Indoor Air Quality (IAQ) products such as humidification, dehumidification, ventilation, and air filtration monitoring - all from a single control in the living space

7-Day Programming - Allows separate programming for each day

Touchscreen Interaction - Easy-to-follow menu-driven operation simplifies programming by responding to your choices

Smart Change/Check Reminders - Let you know when to service or replace filters, UV bulbs (based on actual usage) and humidifier pads

Energy Savings - Program to save up to 33% on annual heating and cooling costs (If used as directed. Savings may vary depending on geographic region and usage)

Whole-House Telephone Access - Works with your existing telephone line to offer control of your home's temperature and Indoor Air Quality over the phone

Model Numbers - YTH9421C1010, YTH9421C1002, TH9421C1004

5-Year Warranty

Exactly what I was looking for

Thank you so much!

AC_Hacker · 05-13-13, 08:46 AM

Quote:

Originally Posted by jlaw

I used a Honeywell VisionPro IAQ 7 day programmable on my split system...

Model Numbers - YTH9421C1010, YTH9421C1002, TH9421C1004

Honeywell YTH9421C1010... List Price = $556.34
Honeywell YTH9421C1002... List Price = $516.58
Honeywell TH9421C1004... List Price = $412.10

Best,

-AC

razor02097 · 05-13-13, 08:55 AM

Amazon has YTH9421C1002 for $182

Honeywell YTH9421C1002 Visionpro IAQ Touch Screen 7-Day Programmable Thermostat, Version 2 - Amazon.com

It sounds promising

Daox · 06-26-13, 02:49 PM

Any updates? Did you buy one? How is it working?

razor02097 · 07-31-13, 06:41 AM

Quote:

Originally Posted by Daox

Any updates? Did you buy one? How is it working?

I did buy one and have been using it for a week now. I found one from a seller on Amazon for $97. It was new but the box was a little ratty.

As far as savings so far... There really haven't been any noticeable changes in the kW/hr meter. However I am still tweaking the settings and the house is noticeably cooler. The old thermostat was the lever style so it was nigh impossible to get a proper reading. I use an app on my phone called ECAS to keep track of my meter. According to the data I can keep the thermostat cooler in the summer and still use the same amount of electricity... Plus I don't have to mess with the thermostat anymore.

I also called out the pros to tune up my system. That did make a difference. I don't know the history of the system but from what the neighbors told me it is likely that it hadn't been touched in something like 5 years...

razor02097 · 12-03-13, 12:36 PM

I wanted to give another update... Well as soon as the cold snap hit here my electric bill doubled... Turns out the thermostat is very impatient. What I mean is it will kick on the aux heat during the "recovery" period. The recovery period is the time when my thermostat changes from "Away" to "Return" and start to heat up the house.

Well for $24 I bought a temp sensor to mount outside so I can set lockouts. The sensor is a "Honeywell C7089U1006 Outdoor Temperature Sensor" So far so good. I was able to set the heat pump lockout at 30* F so it won't kick on below that threshold. I set the aux heat lockout for 35*F so the aux heat won't kick on unless below 35*. This way I'm hoping the heat pump will be used for recovery instead of the resistive elements the furnace has.

A little more info on my system... The heat pump is a 12 year old 10 seer Rheem unit. Last measurement comparing return to register was +18*F. The aux heat is four 30 amp resistive heat banks which will set your hair on fire given the chance... I also have a Rheem whole house humidifier attached to the furnace.

I'll update as soon as I have a few weeks of data. Hopefully I can save some monies while squeezing some more use out of HVAC relics I currently own.

06-26-13, 02:49 PM	#14
Daox Administrator Join Date: Aug 2008 Location: Germantown, WI Posts: 5,525 Thanks: 1,162 Thanked 374 Times in 305 Posts	Any updates? Did you buy one? How is it working? __________________ Current project - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. & To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

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05-13-13, 08:55 AM	#13
razor02097 Helper EcoRenovator Join Date: Mar 2013 Location: 245862 Posts: 43 Thanks: 12 Thanked 3 Times in 3 Posts	Amazon has YTH9421C1002 for $182 Honeywell YTH9421C1002 Visionpro IAQ Touch Screen 7-Day Programmable Thermostat, Version 2 - Amazon.com It sounds promising

12-03-13, 12:36 PM	#16
razor02097 Helper EcoRenovator Join Date: Mar 2013 Location: 245862 Posts: 43 Thanks: 12 Thanked 3 Times in 3 Posts	I wanted to give another update... Well as soon as the cold snap hit here my electric bill doubled... Turns out the thermostat is very impatient. What I mean is it will kick on the aux heat during the "recovery" period. The recovery period is the time when my thermostat changes from "Away" to "Return" and start to heat up the house. Well for $24 I bought a temp sensor to mount outside so I can set lockouts. The sensor is a "Honeywell C7089U1006 Outdoor Temperature Sensor" So far so good. I was able to set the heat pump lockout at 30* F so it won't kick on below that threshold. I set the aux heat lockout for 35F so the aux heat won't kick on unless below 35. This way I'm hoping the heat pump will be used for recovery instead of the resistive elements the furnace has. A little more info on my system... The heat pump is a 12 year old 10 seer Rheem unit. Last measurement comparing return to register was +18*F. The aux heat is four 30 amp resistive heat banks which will set your hair on fire given the chance... I also have a Rheem whole house humidifier attached to the furnace. I'll update as soon as I have a few weeks of data. Hopefully I can save some monies while squeezing some more use out of HVAC relics I currently own.