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- Wed Dec 22, 2010 10:04 am
- Forum: Help and Advice
- Topic: Ultrazone NCM 300
- Replies: 1
- Views: 7921
Ultrazone NCM 300
I have a 3 year old house with a YORK unit at 96,000 BTU and a fairly simple 2 zone system. We also recenlty added a basement apartment and tapped into the 1st floor zone to get some air circulation etc. A recent routine call from a local service contractor said we are having a "short cycle&quo...