CarZin
12-23-2008, 12:05 AM
I had a Trane XL14c duel fuel unit and Honeywell HZ432 installed this past summer.
Tonight I noticed that the house was cold. Set point was at 68, yet the house was 63. Something not right. The air coming out of the vents was cold. The outside temp was under 30, and the zone controller was supposed to kick in gas heating from the heat pump after temp dipped below 35. I hit the 'emergency heat' button, waited about 15 minutes, yet the gas didnt come on.
I have a 2 zone system, and put both in emergency heat. No difference.
I went under the house, and saw the duct temp was in the 60s. I cant tell you for sure if the emergency light on the zone controller was on or not. But I clicked to 'config mode', then went back to operation mode, and then just like that, the gas furnace cut on for the first time.
Questions:
1) Any idea why this happened? This is the second time this has happened. I called the installer when it happened previously, and he promised to come out but did not. I actually thought the first time was a stat autoprogram screw-up, so I didnt call him back to find out why he didnt come by.
2) I notice that while the house is warming, it is periodically purging. The stat has been calling for 70, and its been trying to work the house up to 70, but it seems to purge fairly often. The stat should have been calling for heat the entire time, so its not cycling on or off. Is this the way a purge cycle is supposed to work?
3) I noticed in the config mode, that the gas heat was set to a 1 stage. I know its a 2 stage. I changed to 2 stage. Any problem with this?
I'll be calling him after the holidays as I have a work around, but would appreciate some opinions.
Sorry if this thread is a little jumbled. Doing my best to recall what actually happened.
Tonight I noticed that the house was cold. Set point was at 68, yet the house was 63. Something not right. The air coming out of the vents was cold. The outside temp was under 30, and the zone controller was supposed to kick in gas heating from the heat pump after temp dipped below 35. I hit the 'emergency heat' button, waited about 15 minutes, yet the gas didnt come on.
I have a 2 zone system, and put both in emergency heat. No difference.
I went under the house, and saw the duct temp was in the 60s. I cant tell you for sure if the emergency light on the zone controller was on or not. But I clicked to 'config mode', then went back to operation mode, and then just like that, the gas furnace cut on for the first time.
Questions:
1) Any idea why this happened? This is the second time this has happened. I called the installer when it happened previously, and he promised to come out but did not. I actually thought the first time was a stat autoprogram screw-up, so I didnt call him back to find out why he didnt come by.
2) I notice that while the house is warming, it is periodically purging. The stat has been calling for 70, and its been trying to work the house up to 70, but it seems to purge fairly often. The stat should have been calling for heat the entire time, so its not cycling on or off. Is this the way a purge cycle is supposed to work?
3) I noticed in the config mode, that the gas heat was set to a 1 stage. I know its a 2 stage. I changed to 2 stage. Any problem with this?
I'll be calling him after the holidays as I have a work around, but would appreciate some opinions.
Sorry if this thread is a little jumbled. Doing my best to recall what actually happened.