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Automatic Water Feeder Install Questions on Steam Boiler
I recently had a VXT-24 automatic water feeder installed on our steam boiler and am wondering if the top ball valve in the picture should close fully 90 degrees (it won't turn anymore than shown and I don't want to force it)? I have it set up to bypass in the picture. I'm also wondering whether I should just let the auto feeder run all the time or bypass and have it run only when we're away from the house for extended periods (we're new to the system and to steam boilers as of 2 months ago).
I've also been reading some concerns of others with automatic water feeders that I wish I was educated a bit more on before I installed it. As long as I have our boiler inspected annually to check the system, are there any reasons why the automatic water feeder would overfill the boiler and thus cause water damage through the radiators? I read that the VXT-24 has a safety mechanism to prevent overfilling, but that the internal solenoid valve could still fail somehow, so am hoping the risk is pretty low. It's set on the LWCV feed setting, and the 2-minute feed delay.