4 degree Temperature rise

[navyjoe]

It got real clold last night (1 degree F) and I was getting a 3 or 4 degree rise in temperature from my registers on stage 1.

Now its 20 degrees F and I am getting a 10 to 11 degee rise on stage 1.

Is that normal, good, bad or what????

Am I better off cost wise using a propane gas heater when it get down to 1 or 2 F?

My unit is a Trane Xi16, The Aux heat is not being used in above figures.

[Kevin O'Neill]

That is a 2 stage unit with aux heat for a 3rd stage. The stages will cycle to maintain comfort. You can't tell what stage is on at most thermostats. If the house is comfortable, don't worry about it.

Measuring at the registers includes duct loss in the temperature rise readings which will make the readings look worse.

[navyjoe]

That is a 2 stage unit with aux heat for a 3rd stage. The stages will cycle to maintain comfort. You can't tell what stage is on at most thermostats. If the house is comfortable, don't worry about it.

Measuring at the registers includes duct loss in the temperature rise readings which will make the readings look worse.

Mine is a zoned system with Trane XR402 thermostats. Each one shows what stage it is calling for.

Good point on the registers, although the ducts are insulated and in a basement and the duct I am using is only 20 feet from the air handler.

I'm just trying to get a feel for system performance and economy. The unit was put on line this winter and the installers have indicated they can't get the chage correct until it goes into the cooling mode.

[Kevin O'Neill]

Even though a stat may call for 2 stages, it is up to the zone control board if it actually runs the equipment on 2nd stage.

[navyjoe]

Even though a stat may call for 2 stages, it is up to the zone control board if it actually runs the equipment on 2nd stage.

I've noticed that. One zone can call for stage 1 and another will call for stage 2. However at the moment I have turned off the heat on two of the three zones, so the thermostat and the Honeywell controller agree with each other.

[Airmechanical]

The unit was put on line this winter and the installers have indicated they can't get the chage correct until it goes into the cooling mode.

call the owner of the company and repeat what the installers told you

if the owner agrees with the installers, ask him why did he not tell you that before they installed the system

then tell him, you will have another company out to adjust/verify proper charge and you will send him the bill

at that point he may change his attitude



.

[Airmechanical]

I've noticed that. One zone can call for stage 1 and another will call for stage 2. However at the moment I have turned off the heat on two of the three zones, so the thermostat and the Honeywell controller agree with each other.

the controller should decide by itself which stage to run!



.

[navyjoe]

the controller should decide by itself which stage to run!



.

OK, what you are saying is the thermostat just walls for heat and the controler determines which stage and when.

I've noticed that there is a delay of several minutes from stage 1 to stage 2 to AUX heat. I turn down the heat at night and in the morning I bring it up seveal degrees at a time to keep it from going to AUX heat (which in my case is electric)

Also by controller I assume this is the controller in the Trane, not the Honeywell zone unit?

[navyjoe]

call the owner of the company and repeat what the installers told you

if the owner agrees with the installers, ask him why did he not tell you that before they installed the system

then tell him, you will have another company out to adjust/verify proper charge and you will send him the bill

at that point he may change his attitude



.

Perhaps what you are saying is, they don't really know what they are doing!? That has been my feeling. The bypass has been moved twice in an attempt to decrease the noise and the last time they went from a 10" bypass to a 12". They also finally increased my return register in the hall from a 10x20 to a 20x20 to stop the whistle.



Quite frankly I have been afraid to antagonize them, they are working with me some.

[navyjoe]

call the owner of the company and repeat what the installers told you

if the owner agrees with the installers, ask him why did he not tell you that before they installed the system

then tell him, you will have another company out to adjust/verify proper charge and you will send him the bill

at that point he may change his attitude



.

I've thought more about your comment. I feel like I am up against a wall. It is a small company and there has only been one technican that has done any work on the controls or refrigerant. He has commented that the Train has a built in indicator of refrigerant charge but it doesn't work until its warmer. I am not quoting correctly I'm sure, but it was something to that effect.
The last time he was out he just added another 4 or 5 ounces to the factory charge. and the air temperature discharge went up 4 or 5 degrees.

[wscsteve]

For my Trane Xl16 i heat pump, I can tell what stage it is in by the air handler speed. 1st stage is whisper quiet, 2nd stage you can hear the air a little more, and then even faster when aux heat kicks in.
I have the Trane 803 stat.
The stat will not show what stage but will let you know when aux is on.

[saylor240]

In your original post you said it was 1 degree outdoor ambiant?? and then 20 degree outdoor ambiant?? to me then it is perfectly normal to have very low heat output due to the fact a heatpump is designed to remove heat from the outdoor air, therfor if the is no heat outside you wont get heat inside, contact the installer make sure the electric heat is stageing properly. contact honeywell they should send out manf rep for the zone control most of the times no charge to just to make sure its set up correctly, i used to work for company and we were factory rep and checked them out all the time cause so many times they are installed inccorectly.

[motoguy128]

In your original post you said it was 1 degree outdoor ambiant?? and then 20 degree outdoor ambiant?? to me then it is perfectly normal to have very low heat output due to the fact a heatpump is designed to remove heat from the outdoor air, therfor if the is no heat outside you wont get heat inside, contact the installer make sure the electric heat is stageing properly. contact honeywell they should send out manf rep for the zone control most of the times no charge to just to make sure its set up correctly, i used to work for company and we were factory rep and checked them out all the time cause so many times they are installed inccorectly.

I have a XL16i and it still puts out plenty of heat even at 15F. It's not quite enough to keep up with my home's heat loss, but it's still generating quite a bit of heat.

I'm thinking you're unit is undercharged an/or the aux heat isn't set to on soon enough.

My installer did not seem to have any problem charging my unit when it was 20F outside. I don't remeber for sure, but I think they had to remove a little charge because my line set was fairly short.