We had a 4 ton Series 5 Waterfurnace installed 3 months ago. On Friday it was discovered that the tvx valve had a leak in it. Unfortunately it was late on Friday and guess what no local parts and I live in a major metropolitan area. The only local rep Waterfurnace has is a sales rep. and he was no help. Finally after 5 days of being without AC the unit was fixed. When the dealer pulled it out it had a split in it.
Poor quality and/or quality assurance not to mention bad customer service. Just make sure if you unit breaks down it doesn't happen on a holiday or weekend.