Need Trane XL16i help please
We are at wits end with our heat pump bought new in June 2007. I will try to keep this short but explain the situation as best as possible.
The unit is a Trane XL16I and was installed with a Trane 2/4TEE air handler. We also have a Trane TCONT802AS32DAA stat.
To start, this unit has the new type Freon in it. But when the unit was installed, I noticed the tech had the old style (R22) Freon tank hooked to the unit and was filling it with the wrong Freon. He corrected the problem and put R410A in the unit. Could that cause a problem with the unit?
The service company has made numerous trips to try and get this unit to heat and cool as expected. Over seven visits in 42 months.
The house is a 2200SF ranch with double pane windows on a slab. I added insulation to the attic right after we bought the house and we now have 18” to 20” all through the attic. For the summer there is a power attic fan.
The compressor has been changed, defrost board changed and heat strips have been changed during service calls.
After all the above during one heating event this winter the stat was sit to go to 67 and then bring the house back to 69 at 3:30pm. At 4:33pm the temp on the stat was 66. At 5:16pm it was to 67 and at 5:31 it was still at 67. The unit was running the whole time. The unit did not get the house to 69 until 6:00pm. The outside air temp was 38 degrees on a calm day.
Most times the output air is 80 and the return is 68. If the unit kicks in the aux on the stat the output will rise to 100.
In the summer cooling season the unit struggles to keep the house 76 degrees. If it gets above 90 outside, that’s when the temp will rise to 78 or 79 in the house.
Something just doesn’t seem right?!!!
Have you tried another company? Do you have any service tickets with technical data on them, temperatures, pressures,amperage, etc.?
Originally Posted by raw2210
contact the company and have them call the Trane Field Service Rep. and have them get him/her involved. It sounds like they are changing parts and componenets and don't have any idea what the real issue is. Good luck, I hope this turns out good for you.
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Post mdl number of outside condenser and inside air handler.
Your location please.
What size heat strip?
80 degree supply temp is not right and unacceptable depending on outside temperature.
Not really enough info here but the following should be checked.
2.high stage is working
3.ductwork has been inspected as far as adequate sizing and leaks
Just from a distance, I would say your tech/dealer is not qualified on servicing/troubleshooting your system. You need a new set of eyes. Also I would ask dealer to contact Trane field rep to accompany them on next call.
About the only positive out of your story is system still under warranty.
What was the problem with compressor? The defrost board? The heat strip?
All compressor failures are normally returned to Trane to be inspected, broken down, and reason for failure assigned.
Sorry for your trouble.
Answers for some of the questions
Here are hopefully some answers to questions that have been asked:
Outdoor Trane Model 4TWX6036B1000AA
Indoor Trane Model 4TEE3F37B1000AA
Coil Trane BAYWTR1415BRKBA
One ticket reads in some areas.
AIR HANDLER: volts 244 - heater amps 20.4, 23.5, 20.3 - A/C OR H/P: Ambient 20 - line temp 110 - volts 245 - comp RLA 16.7 - Comp amps 8.5 - fan motor amps .9 - AIRFLOW: filter drop OK - Coil drop OK - motor type ECM - motor amp 3.9
Not sure what size heat strips we have. How do you tell?
Not sure what was wrong with the compressor, heat strips or defrost board. Just saw that they were replaced on service ticket and all three where changed on different service calls.
One ticket read at the bottom "defrosting too much". But then the next tech comes out and states, "no it's not defrosting too much". Geez who is right?
One last thing. In the morning when the house is coming back up from 67 to 69, the stat will click four times real fast and the whole system shuts down at once. I know the clicks are normal on the new stats, but shutting down completely? Air handler included shuts down. Other times the fan continues to run after the stat stops showing "heat on" and blows for another few minutes.
Your electric heat is the 1415 (15kw) your coil is part of the air handler. The data does not say much, a lot is missing. Post your area and look in the directory in the index for a new dealer. The fan running after call is normal but the 4 clicks is not.
Originally Posted by raw2210
I am still curious about the issue of hooking up R22 and then switching to R410a could there be reminds of the old refrigerant in the unit/lineset? You might need to have the whole system evacuated and flushed and recharged, I would call another company to come verify performance and work with a Trane FSR.
Is the company listed on the www.trane.com website under dealer locator? If not call somebody from there. What area of the country are you located in?
Wondering if the R22 was ever taken out, and a complete virgin charge of R410A put in. Its possible that they only recovered what was in the system, and put the same contaminated gas back in after the compressor change out.
Originally Posted by SkyHeating
call a trane comfort Specialist to come check it ,the 16 I control wiring is different than any other unit and if not wired correctly will never work right. as for them installing r22 into the unit leads me to believe they have not worked with much 410a systems
First I want to thank everyone who has replied trying to help us in this situation. You all are great! Thank you!!
A Trane rep called yesterday and "encouraged" me to allow the outfit that installed the units to come out one more time and try to fix the problems. He indicated it would be a free visit. He also said if I wanted to call another Trane approved outfit that Trane would "probably" be able to assist with that visit. He did not come and say they would cover the cost. But he really wanted me to give the original outfit one more chance. Since it is free, I will give their service manager who is coming out, one more shot.
I will ask the questions that you all have supplied and hopefully get to the bottom of the problems.
This morning we are very warm for this time of year in Springboro, OH. We are 1/2 way between Cincinnati and Dayton, OH.
50 degrees out, cloudy with light rain.
output air is 87 right before it leaves the air handler to the ducts (best in a LONG while) and return is 69 (what the house is set on the stat). First register from air handler in house is 82 output. Unit is running almost constantly. 55 minutes in an hour I'd say.
The service manager is coming out next Tuesday 2-7-12 to look/work on the unit. I will get back then with an update to everyone.
If you think of anymore questions or things you think he should check and not overlook, please list them and I will write them down.
Again thanks to everyone!
Update and Question
They called and wanted to change the time of the appointment, so now they are coming out on Friday 2-10-12.
It usually blows about 80 on the output side. What should it be blowing output degrees? Does the outside the house temp have in relation to what the unit blows on the output temp inside the house?
It's 34 degrees outside at 9:30pm. The output temp right under the blower before it heads into the house from the blower is 81 and the temp at a floor output inside the house is 78 degrees.
Trying to be informed as possible come Friday.
What is your thermostat setting?
And the setting is being maintained without heat strip help?
I am still concerned about that low supply temp. Airflow setting should be checked. No higher than 400 CFM/ton.
Keep us posted as to tech's findings and all adjustments made.
The stat is set on 69 during the day and slides back to 67 at night.
The heat strips do cycle in from time to time.
What should the output air be on a normal run of the heat pump without heat strips?