I purchased a Trane 20 LXi Heatpump, matching coil and 95% efficient variable speed propane furnace in Nov 2009. In the 15 months I've had the system the HVAC contractor who installed it has been here 15-20 times.
Some of the issues have been:
- Incorrect refrigerant pressure
- Flame rollout errors due to propane pressures not set correctly on burner valve.
- Icing up of condensor unit in heat pump mode not defrosting
- Furnace condensate drain cracked and leaking into blower cabinet - replaced
- Clean Effects not working at all - secondary transformer not installed on circuit board during initial installation
- Water dripping off coil into transitional 90 degree return ducting
- After coil was replaced bad weld on 5/8 line caused refrigerant leak. System had to be evacuated and weld repaired, system recharged
This was the top of-the-line system and very expensive. Since it is in my basement and there wasn't enough room to set the coil on top of the furnace, they placed it just below the Clean Effects air cleaner and atop a 90 degree transition duct in the return or neg air pressure side of the system. Water drops are coming off the coil ending up in the transition duct below the coil when the system runs on high speed and at times there is enough water pooling in the duct to leak out on the floor. They replaced the drip pan on the coil as there was a hairline crack, replaced the coil, and still there is water dripping down. The condensate drain is trapped correctly. My feeling is that the water is a result of the air rushing down through the coil along with the gravity. If the coil was installed above the furnace any droplets that left the coil would fall back on the coil. So my question is this..... Is this a standard practice to install a coil vertically on the return side of the air handler? The contractor tells me they do this type of installation all the time, but I can't help but think this whole installation is botched and the system is going to be problematic from here on out. the labor warranty runs out in two months. Any ideas? What should I ask for here. I would appreciate any input on this. I've used this contractor previously and had not one service call in 10 years on my Bryant system, so I'd like to think they will make this right, but I'm beginning to wonder if the problems will ever cease .