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Short Cycling on Pressure? Downfire? Air Vents?
WARNING - THIS IS LONG (SORRY!)
I tried to put as much info as possible in here up front...
Hello All - last time I posted I was asking questions about EDR and which Megasteam best fit my needs. My total EDR was 415 and so I went with a Megasteam MST-513. Steamhead said that if it short cycles to downfire it. Is it as simple as that?
The past 2 days I have run a simple test: Raise the thermostat 4 degrees and see what happens. Both times, the same result - continuous burn for 30 or so minutes and the thermostat temp raises 2 or 3 degrees. The last degree was achieved over the course of 5 or 6 two minute cycles, I assume because of pressure. The pressuretrol is set at Main 1.5/Diff 0.5. The 0-30 pressure gauge must be plugged or something as it pretty much reads "0" at all times.
The other test I ran was raising the thermostat 2 degrees and it had no problems. I can say there seems to be a lot of hissing, etc. coming out of the radiators, so perhaps this goes back to my mainline air vents?
In reference to my venting, I have 2 supply mains, each of them has a Ventrite 35 at the end of the dry return (parallel flow with dry return and a hartford loop - if that makes sense?) . I recently purchased two Gorton No. 2's to replace the Ventrite main vents. All other radiator vents are working at various levels - I also purchased some Gorton No. 6's for upstairs... maybe those will help?
I ran into an unfortunate situation where my first installer made excuses and futzed around for 2 weeks trying to get my Megasteam and SuperStor installed, only to butcher it and leave us without heat for 2 days during a blizzard here in MA. That being said, we hired another company in an emergency situation who doesn't necessarily specialize in steam heat, but seemed competent enough to get the job installed per Burnhams recommended diagram (no dropped header though...). Also, the boiler hasn't been skimmed since the install was finished, it's been 2 full days now.
Anyways, where do I start and what can I have the installer do to remedy this? Any input would be greatly appreciated. If you need more info, I'll do my best to answer questions. Pics attached, let me know if you need more - Thanks!
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