[an error occurred while processing this directive]
Posted by Steaman on October 17, 2004 at 18:31:05:
In Reply to: water column and water level controller posted by MDysert on October 17, 2004 at 07:31:10:
: Recently replaced controller (McDonnell-Miller
: 150s) and seems to be extremely sensitive
: to water oscillation when feed water pump
: comes on causing numerous low water
: shutdowns. Have increased blowdown in that
: suspected TDS problems but indications are
: that has not significantly increased. Should
: I suspect my water column equalization lines?
: Any other obvious things I am overlooking?
What was the reason for changing out the control? Was the old one doing the same thing? Does the new one have the snap switches in it, or, the old style mercury type. I have found the new snap switches to not be as reliable as the mercury type. Some tweaking may be needed. Another problem may be what is commonly reffered to as sucking your boiler dry. This occurs when you don't have enough boiler for the load your rtying to keep up with. It will cause your water level to 'bounce' Another problem may be 'grease' in your feed water, a problem typical especially to meat production and rendering plants. Hope some of this helps you out.
Post a Followup