Laars minitherm boiler
#1
01-08-15, 07:09 PM
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Laars minitherm boiler
Hello,
I recently had Laars minitherm JVH100 installed with no bypass 1 zone only, when the boiler kicks on there is a loud vibrating noise lasting between 5-10 seconds coming from the return cooper pipe outside the boiler, could i be looking at a flow problem? maybe too much water going into the boiler?
I recently had Laars minitherm JVH100 installed with no bypass 1 zone only, when the boiler kicks on there is a loud vibrating noise lasting between 5-10 seconds coming from the return cooper pipe outside the boiler, could i be looking at a flow problem? maybe too much water going into the boiler?
#2
01-08-15, 07:25 PM
I recently had Laars minitherm JVH100 installed with no bypass
Can you post some photos of the boiler installation?
#3
01-12-15, 07:54 PM
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Hello NJ trooper, thank you for your quick reply.
i asked why the install manual was not followed and was told it was not needed because it was such a simple 1 zone installation.
since my original post plumber came back and installed a different multi speed circulator pump and problem was been solved since ( no more vibrating noise).
So now that the noise is gone, does this mean i should forget about having the piping redone in the future with by-pass piping as recommended by the manufacturer or should i just leave it alone, I guess i am just worried about the boiler having issues in the future.
i asked why the install manual was not followed and was told it was not needed because it was such a simple 1 zone installation.
since my original post plumber came back and installed a different multi speed circulator pump and problem was been solved since ( no more vibrating noise).
So now that the noise is gone, does this mean i should forget about having the piping redone in the future with by-pass piping as recommended by the manufacturer or should i just leave it alone, I guess i am just worried about the boiler having issues in the future.
#4
01-12-15, 08:10 PM
i asked why the install manual was not followed and was told it was not needed because it was such a simple 1 zone installation.
Laars emphasizes that a bypass must be used because that particular type of boiler requires a certain flow through it. The way to guarantee that flow is to insist on the bypass.
Installing a larger pump is a bandage.
I can't say if you will have problems in the future.
Maybe you will, maybe you won't.
#5
01-12-15, 08:37 PM
Super Moderator
Well maybe ok for the 100 series you have with one zone... read page 17 here..
http://www.laars.com/LinkClick.aspx?...1607&mid=14726
I guess as long at the DT across boiler is no more then 30f according to laars..
But what would it of taken for the installer to add a system bypass and do as suggested? Just sounds lazy IMO.. Or possibly they just dont know about p/s piping schemes and are stuck in the 80's...
If it were me I would want the bypass... And the pump sized accordingly... Will it make a difference since lager pump was installed? Well what pump was installed? More electric use I assume.
http://www.laars.com/LinkClick.aspx?...1607&mid=14726
I guess as long at the DT across boiler is no more then 30f according to laars..
But what would it of taken for the installer to add a system bypass and do as suggested? Just sounds lazy IMO.. Or possibly they just dont know about p/s piping schemes and are stuck in the 80's...
If it were me I would want the bypass... And the pump sized accordingly... Will it make a difference since lager pump was installed? Well what pump was installed? More electric use I assume.
#6
01-17-15, 06:15 PM
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hi,
a larger pump has somewhat helped to eliminate the vibration noise, but i still hear the noise occasionally for a few seconds, the new pump installed is a multi speed Taco 0015-MSF2-IFC .
at some point i will have the pipping redone maybe in the summer as i would like to leave it alone for now.
Do you know what the approximate costs would be to have the correct piping installed with a bypass and how long would take for a 1 zone setup like i have?
a larger pump has somewhat helped to eliminate the vibration noise, but i still hear the noise occasionally for a few seconds, the new pump installed is a multi speed Taco 0015-MSF2-IFC .
at some point i will have the pipping redone maybe in the summer as i would like to leave it alone for now.
Do you know what the approximate costs would be to have the correct piping installed with a bypass and how long would take for a 1 zone setup like i have?
#7
01-17-15, 07:07 PM
Do you know what the approximate costs would be to have the correct piping installed with a bypass and how long would take for a 1 zone setup like i have?
