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Re: Trianco HeatMaker II Noises

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Posted by Brian Halliday on February 19, 2004 at 05:28:57:

In Reply to: Re: Trianco HeatMaker II Noises posted by Harold hydronicnetwork.net on February 18, 2004 at 16:29:37:

Thanks Harold.

This particular Trianco HeatMaker Mark II is a tankless model, no domestic hot water, just hydronic baseboard heating. As far as short-cycling, the system heats a 1300 square foot chalet cottage in Northern Michigan. The house has 6" walls, Anderson Windows and is about 6 years old - really tight. There are two zones. One heats the house (which I use all the time) and the second heats the basement (which I never use). When I turn the basement zone on, the boiler runs like it should (no short cycling). Once the baseboards are fully heated, it begins it's short-cycling. Your reply mentioned that the "tank temperature is set too high". I saw that reference in the Trianco Manual as well. This unit does not have a tank, so does that mean that the boiler needs to be effectively "turned down" so that the system runs cooler? Also, should I try replacing the thermostat (this thermostat is in the return plumbing, and hangs just below the boiler in the thermostatic union)?

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