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Heat Pump System - Single Stage or 2 Stages? Bob Simon 05-11-2008
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Posted by Bob Simon on May 11, 2008, 2:04 pm

>Bob Simon wrote:
>> I'm looking at programmable thermostats for my heat pump -- Goodman
>> GSH14030 compressor and ARUF3030 air handler with a 10kW heat kit.
>> I want to determine how many stages of heating and cooling I have so I
>> went to the Goodman web site and searched the spec sheets for the word
>> "stage" but it was not listed this way.
>>
>> Can someone please tell me if this is a single stage system or
>> multi-stage? For two stage systems do both the compressor and air
>> handler need to be two stage or is this determined by only one of
>> these components?
>
>Bob;
>
>Your system is a 14 SEER 2.5 Ton Heat Pump. You will need a single stage
>cool, 2 stage heating thermostat. The second stage for heat is the strip
>heaters. Look in the instructions that came with the indoor unit. It will
>show you how to connect your new thermostat to your system. Good luck.
>
>And if you find a problem call your local HVAC repair people. They'll help
>you, but there will be a fee tied to the help. We have bills to pay too.

Thank you. Is the reason you know that the compressor is a single
stage because it only has one BTU rating?

The old thermostat has a single O/B contact whereas the one I'm
considering buying (White Rogers 1F95-1277) has both an O and a B.
Currently the orange wire goes to O/B - the changeover relay. If I
purchase the 1F95-1277, how should I wire O and B?

Posted by KJPRO on May 11, 2008, 4:03 pm

>
>>Bob Simon wrote:
>>> I'm looking at programmable thermostats for my heat pump -- Goodman
>>> GSH14030 compressor and ARUF3030 air handler with a 10kW heat kit.
>>> I want to determine how many stages of heating and cooling I have so I
>>> went to the Goodman web site and searched the spec sheets for the word
>>> "stage" but it was not listed this way.
>>>
>>> Can someone please tell me if this is a single stage system or
>>> multi-stage? For two stage systems do both the compressor and air
>>> handler need to be two stage or is this determined by only one of
>>> these components?
>>
>>Bob;
>>
>>Your system is a 14 SEER 2.5 Ton Heat Pump. You will need a single stage
>>cool, 2 stage heating thermostat. The second stage for heat is the strip
>>heaters. Look in the instructions that came with the indoor unit. It
>>will
>>show you how to connect your new thermostat to your system. Good luck.
>>
>>And if you find a problem call your local HVAC repair people. They'll help
>>you, but there will be a fee tied to the help. We have bills to pay too.
>
> Thank you. Is the reason you know that the compressor is a single
> stage because it only has one BTU rating?
>
> The old thermostat has a single O/B contact whereas the one I'm
> considering buying (White Rogers 1F95-1277) has both an O and a B.
> Currently the orange wire goes to O/B - the changeover relay. If I
> purchase the 1F95-1277, how should I wire O and B?


Did you see where he stated...

"And if you find a problem call your local HVAC repair people. They'll help
you, but there will be a fee tied to the help. We have bills to pay too."

Now quit being so cheap!




Posted by Bob Simon on May 11, 2008, 4:36 pm
wrote:

>
>>
>>>Bob Simon wrote:
>>>> I'm looking at programmable thermostats for my heat pump -- Goodman
>>>> GSH14030 compressor and ARUF3030 air handler with a 10kW heat kit.
>>>> I want to determine how many stages of heating and cooling I have so I
>>>> went to the Goodman web site and searched the spec sheets for the word
>>>> "stage" but it was not listed this way.
>>>>
>>>> Can someone please tell me if this is a single stage system or
>>>> multi-stage? For two stage systems do both the compressor and air
>>>> handler need to be two stage or is this determined by only one of
>>>> these components?
>>>
>>>Bob;
>>>
>>>Your system is a 14 SEER 2.5 Ton Heat Pump. You will need a single stage
>>>cool, 2 stage heating thermostat. The second stage for heat is the strip
>>>heaters. Look in the instructions that came with the indoor unit. It
>>>will
>>>show you how to connect your new thermostat to your system. Good luck.
>>>
>>>And if you find a problem call your local HVAC repair people. They'll help
>>>you, but there will be a fee tied to the help. We have bills to pay too.
>>
>> Thank you. Is the reason you know that the compressor is a single
>> stage because it only has one BTU rating?
>>
>> The old thermostat has a single O/B contact whereas the one I'm
>> considering buying (White Rogers 1F95-1277) has both an O and a B.
>> Currently the orange wire goes to O/B - the changeover relay. If I
>> purchase the 1F95-1277, how should I wire O and B?
>
>
>Did you see where he stated...
>
>"And if you find a problem call your local HVAC repair people. They'll help
>you, but there will be a fee tied to the help. We have bills to pay too."
>
>Now quit being so cheap!
>
>
You and "noon-air" seem to make a lot of unjustified assumptions.
Perhaps you and he are usually right but I have to wonder. It looks
to me like you're trying to prove that do-it-yourselfers are stealing
your livelyhood and I happen to be a convenient target for your
unhappiness.

For your information, over the past two years I paid a qualified
installer about $7k to install two new heat pump systems in my house.
A week ago when the WR 1F82-261 thermostat he installed died, I
re-installed the old mercury switch thermostat. As I mentioned, the
system is working now. I enjoy doing small repairs that are within my
capabilities and am completely confident that I can install and
program a new electronic thermostat.

I am still hopeful that someone in this group will confirm my
expectation that I need to jumper the B and O terminals for a
thermostat where they are separate terminals.

Posted by Kenneth on May 11, 2008, 6:00 pm
On Sun, 11 May 2008 15:36:07 -0500, Bob Simon

>You and "noon-air" seem to make a lot of unjustified assumptions.
>Perhaps you and he are usually right but I have to wonder. It looks
>to me like you're trying to prove that do-it-yourselfers are stealing
>your livelyhood and I happen to be a convenient target for your
>unhappiness.
>
>For your information, over the past two years I paid a qualified
>installer about $7k to install two new heat pump systems in my house.
>A week ago when the WR 1F82-261 thermostat he installed died, I
>re-installed the old mercury switch thermostat. As I mentioned, the
>system is working now. I enjoy doing small repairs that are within my
>capabilities and am completely confident that I can install and
>program a new electronic thermostat.
>
>I am still hopeful that someone in this group will confirm my
>expectation that I need to jumper the B and O terminals for a
>thermostat where they are separate terminals.

Hi Bob,

Interesting, isn't it...?

Unfortunately, I know nothing that will allow me to assist
in answering your questions, but I will tell you of
experiences I had here about a month ago:

I posted some questions relating to an insulation job we
were considering, and, in return, got responses that fell
into two distinct categories:

Some folks were extremely generous with their time and
knowledge.

Others hurled insults, and, as far as I could make out,
became angry at me apparently through some twisted logic
relating to the kindness of the folks in that first group.

Eventually, the generosity won out because some of that
group, tiring of the nonsense, simply took the discussion
off line and wrote to me privately. I remain deeply
appreciative of that assistance.

Interestingly, based in part on the good counsel I have
described, we decided on a particular approach, hired a firm
to do the work, and are now about $12000 into the
modification we needed.

I do hope that you get your questions answered, and, were I
in your shoes, I'd check my email regularly.

All the best,
--
Kenneth

If you email... Please remove the "SPAMLESS."

Posted by on May 11, 2008, 6:18 pm
On Sun, 11 May 2008 18:00:26 -0400, Kenneth

>Unfortunately, I know nothing that will allow me to assist

        Well then, thank you for popping up and running your mouth
anyway. We all sure apprciate it, we gol darn sure do.


>Eventually, the generosity won out because some of that
>group, tiring of the nonsense, simply took the discussion
>off line and wrote to me privately. I remain deeply
>appreciative of that assistance.

        An asshole hack wannabe named Chris / aka Stormy Mormy sent
you a nice little email about how he was going to be a nice guy and
help you, unlike all those bastards here. Uh huh.

        Sadly, he's a clueless hack trying to play Big Man, and
everything he told you was wrong. oh, well, at least you like him,
that counts for something.


--
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Paul ( pjm @ pobox . com ) - remove spaces to email me
'Some days, it's just not worth chewing through the restraints.'
'With sufficient thrust, pigs fly just fine.'
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