I have a Heat Pump with A/c that uses a t-2000 thermostat 6-wire set up, can I replace it with a programmable?

Answer 1

i suppose that you can, but you shouldnt.

when you change the temp more than about 2 degrees on a heat pump stat, it throws the unit into emergency heat and your electric meter spins like crazy. some stats have a lockout function that turns off the heat strips so they never come on. this is a bad idea too. for instance lets say that you lock out the heat strips, and program your stat to warm the house up 5 degrees at 5 oclock in the evening....the house has cooled off during the day, and the out door ambient temp is starting to fall, so the heat pump really has to work hard to warm the house while the laws of thermodynamics are working hard against the heat pump. the end result is more energy consumption.

if the house was never allowed to cool off, the heat pump would be cycling on and off durning the warmest part of the day, when it is operating the most effiently.

in a/c mode a programmable stat will marginally save some money. but not always. where i live the relitive humidity is about 75%-90% all summer. when you turn an air conditioner off the house not only heats up, but becomes humid as well.

when doing a heat load one has to consiter the thermal mass of a house. you are not just heating or cooling the air, but you are heating or cooling the furnature, the books, the carpet, the sheetrock, and you pet rock named floyd.

long story short, programmable stats dont save you money, they just make money for the folks who make them.

Possum, hvac guy

Answer 2

A conventional t-stat for a gas furnace is one thing, a heap pump is a whole different animal. Most programmable stats require a common wire which the existing one may or may not have. Also, you will need to know if the reversing valve on the outdoor unit is failsafe in the heating or cooling mode. Most t-stat replacements are a DIY project but I suggest you call an HVAC tech on this one.

Answer 3

Check the print on the package you want to buy. When we bought our programmable thermostat the package listed the makes & models it could be used on. If still not sure check with a salesperson.

Answer 4

yes