Author Topic: Have to clean out my water to water heat exchanger (Read 940 times)

furjaw · « **on:** November 04, 2013, 02:41:05 AM »

I have a Central Boiler 5036 Outdoor Wood Furnace.
My Taco Model 009-F5 Circulation Pump just died.
The plastic impeller had disintegrated and was mostly missing.
I replaced the cartridge with Cartridge # 009-021RP.
It is working but apparently the flow is obstructed.
I have a water to water heat exchanger.
My guess is that the heat exchanger is plugged up with pieces of plastic from the impeller.

doctorb · « **Reply #1 on:** November 04, 2013, 05:24:30 AM »

The first thing to do is check every valve in your system to make sure one is not still closed. I am not trying to belittle you. It's the kind of simple thing that makes us pull out our hair.

Roger2561 · « **Reply #2 on:** November 04, 2013, 07:40:37 AM »

Quote from: furjaw on November 04, 2013, 02:41:05 AM

I have a Central Boiler 5036 Outdoor Wood Furnace.
My Taco Model 009-F5 Circulation Pump just died.
The plastic impeller had disintegrated and was mostly missing.
I replaced the cartridge with Cartridge # 009-021RP.
It is working but apparently the flow is obstructed.
I have a water to water heat exchanger.
My guess is that the heat exchanger is plugged up with pieces of plastic from the impeller.

This brings up a question; when do you folks think I should do a bit of preventive maintenance? I have the same Taco pump on my E-Classic 1400, going on my 3rd year of heating with it. Should I go on the offense and change out the impeller before it breaks? Or, leave it alone until it does break? What's the average live span of the Taco 009-F5? I'm thinking of purchasing a replacement impeller really soon anyway. Thoughts? Roger

doctorb · « **Reply #3 on:** November 04, 2013, 08:37:59 AM »

Roger- a previous thread with more info. re: Taco pumps

http://www.forestryforum.com/board/index.php/topic,58825.msg856137.html#msg856137

Roger2561 · « **Reply #4 on:** November 04, 2013, 11:25:04 AM »

doctorb - Thanks for the link. That was very informative. I think all I do for this winter is purchase a replacement cartridge to have on hand for the "just in case" scenario. The funny thing is, I have a Taco on the oil furnace and that's 20 plus year old and it has never failed me (Now that I've said that...

). I need to seriously think about having my water tested professionally to see what I have and I'll go from there. Roger

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