If you set it up with a single stage stat, then it will not function as a true 2 stage furnace....it will simply work off a timer.
Do you setup 2 stage furnace with single stage stat and let the board control 2nd stage. Or install 2 stage stat and let stat control when to turn on second stage. Just wanted to see which way other Techs would setup new installs.
If you set it up with a single stage stat, then it will not function as a true 2 stage furnace....it will simply work off a timer.
True. But wouldnt it be more for comfort
Both ways... Yeah, that is confusing.
I sell more VS drive furnaces than PSC... depends on the customer and what they buy.
If I am replacing a system with basic equipment and I sell them up to a VS furnace and media filter (most sales); then I use a single stage stat and set the furnace for either 5 or 10 min delay to high. Many installs the furnace does not go into high many times the whole heating season (note I am in a warmer climate).
When the customer buys a nicer system... all of the above plus 2 stage AC... then I generally sell them a high end stat... like the HoneyWell Prestige IAQ YTHX9421R5069 or 5077. Customers seem to like the systems I install... they keep referring me to their friends.
GA-HVAC-Tech
Your comfort, Your way, Everyday!
GA's basic rules of home heating and AC upgrades:
*Installation is more important than the brand of equipment
*The duct system keeps the house comfortable; the equipment only heats and cools (and dehumidifies)
*The value of comfort, over the long term; leave economic choices behind!
Choose your contractor wisely!
A 2 stage thermostat should be part of the quote for a 2 stage system if the customer doesn't already have one.
stat, always.
Our company does the two stage furnace with the single stage stat all the time and set the furnace for the 5 min delay.
We had alot of complaints with 2 stage t-stat, because the furnace would run on low tooooo long ( mental hurdal for the client ).
It's already bad enought with the older clients " the air isn't hot - turn it up ".
luck dan
we sell 2 stage furnace with single stat. Furnace runs on 1st stage for 15 - 20 minutes then goes into 2nd stage. The Control Board is operating system. Which way is better for the customer? I would think running longer on 1st stage would make the house feel warmer throughout.
We do both. Depends on if the customer wants to spend a little extra or bare bones minimum.
How often does a customer buy a 2 stage furnace without a 2 stage air conditioner? Why would you force a furnace to run for 5-10 or even 20 minutes before kicking in to second stage when the customer just turned the thermostat up 6 degrees?
Why not sell the customer full functionality?
~smoke~
"That motor's done, he let the factory smoke charge out!"
Depends on stat wire, our Tstats are single or 2 stage so if the wires are there then stat if not then board. On high end we pull new wire. Case by case
My criteria is whatever the boss ordered.
nismo1, check out the Honeywell wireless stats. You can get them in a Focus Pro style up to the Prestige line. 2wire or no wire applications
~smoke~
"That motor's done, he let the factory smoke charge out!"
Im with the two stage furnace two stage Tstat. That being said if there are wiring constraints and for some cost issues single stage and set to delay would work. I am in a severe climate so a delay probably is not the best.
IMO it depends on the part of the country you are in and the customer.
As noted in my previous post... some customers only buy the VS furnace... not a full 2 stage system.
Also... many folks only want hot or cold air coming from the vents... they are not smart enough nor sensitive enough to appreciate 'comfort'. The reason I sell them VS furnaces is humidity control... in my climate everyone likes humidity control.
Now a question: Why sell a customer something they do not need, want, understand, or even can tell the difference?
IMO it is not good customer service to force stuff on the customer... it surely is not good value for the customer.
GA-HVAC-Tech
Your comfort, Your way, Everyday!
GA's basic rules of home heating and AC upgrades:
*Installation is more important than the brand of equipment
*The duct system keeps the house comfortable; the equipment only heats and cools (and dehumidifies)
*The value of comfort, over the long term; leave economic choices behind!
Choose your contractor wisely!
I think its member "mayguy" that had a 2 stage set up to use the timer. He said it worked great and provided him with plenty of comfort and he didn't think a 2 stage stat would make any difference to him. He eventually tried a 2 stage stat, which improved his comfort even more.
Moral, a customer can't know what their missing until they have had it.
If its only going into second stage after 5 or 10 minutes only a few times a year. I'm guessing you have to use a furnace larger then the heat load needs in order to get the size blower you need.