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RJ

RJ

Joined on February 3, 2007

Last Post on July 18, 2014

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Recent Posts

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backflow

@ January 7, 2013 7:38 PM in Water feed valve leak issue from boiler

I would move this post to the Main Wall where more fitters and plumbers will see it.

wall furnace

@ January 7, 2013 10:54 AM in wall furnace

I will check all these things
Thanks Rick

training

@ January 6, 2013 6:58 PM in hydronics school

Bell&Gosset used to have good curriculum, also R.S.E.S has great training

cozy

@ January 5, 2013 6:33 PM in wall furnace

It is a cozy wall heater, it uses double wall oval pipe,  25mbh

wall furnace

@ January 5, 2013 10:42 AM in wall furnace

A friend of mine wants to install a wall furnace in a remodeled garage, at this point it is 1 big open rm 400 sq. ft  Option 1, the easiest,   mount heater on the inside of the outside wall. (closest to gas line )  Option 2 build a small interior wall in rm and install a dual wall heater.  Asking for opinions. I worked in the commercial side of the trade and am not familiar with wall heaters
Thanks Rick

clearly

@ January 4, 2013 2:28 PM in Why do I have two pressuretrols?

You got a better resolution  I see a white reflection

pressuretrol

@ January 4, 2013 11:43 AM in Why do I have two pressuretrols?

Most cities require an operating control and a high limit on commercial boilers. In your picture the control on the left looks like a honeywell PA404 style control, This could be the oper. control.  The control upper right could be a high limit, it would have a L in the part no. like L407---    the older limit controls had a metal reset button on the top of the control.  Also Peerless used to use a 2 stg, control

no trap

@ January 3, 2013 1:00 PM in Steam trap

Thanks Dan for the clarifiiation  looked like an old trap but the piping did not seem right

trap

@ January 3, 2013 10:54 AM in Steam trap

Take a temp. reading from inlet to outlet, if the temp is the same this would indicate a problem with the trap, it can be replaced with a Hoffman F&T trap. there would be extensive repiping

leak

@ January 3, 2013 10:47 AM in System loses pressure slowly?

Your relief valve may be dribbling, if you have a diaphram type expansion tank check the air press (use a tire guage ) should be at least 12 psig, for most small systems, the fitting is underneath the big plastic nut, if you get any water the diaphram has ruptured. If the tank is ok could be the relief valve, also look around system for leaking pump flanges, fittings or press. guages

tanks

@ January 2, 2013 4:28 PM in Point of no pressure change - help me understand

You have your compression/diaphram tanks all mixed up

trap

@ January 2, 2013 2:49 PM in Steam trap

Looks like an old school F&T trap  with an external T part,  hard to say, describe   where the piping is coming from and going to

p/m

@ January 1, 2013 11:22 PM in honeywell burner control - alarm light on

Contact Powerflame   they have a great tech dept    or download I.O.M

p/m

@ January 1, 2013 11:21 PM in honeywell burner control - alarm light on

Contact Powerflame   they have a great tech dept    or download I.O.M

drawing

@ January 1, 2013 10:39 PM in Point of no pressure change - help me understand

This may help

module

@ January 1, 2013 4:34 PM in honeywell burner control - alarm light on

You will need the S7800A1142 keyboard display module.   Unfortunately they cost around $300.00.    When i would update old RA890 controls to RM800's  i would always include in my quote the cost of the S7800 keyboard so the customer would have it  At least 80% of all failures are due to flame rectification problems so make sure you have a good strong pilot and your pilot is not rusty. Also make sure your connections are good and you have a good ground where it is called for.

problem

@ December 31, 2012 6:40 PM in $50 if you can figure this out...

I feel for you I have many landlords over the years that were stubborn, I would set up a meeting with a steam pro and the landlord and show him the problem.  Check the city no heat laws where you live,   when I was working in the San Fran. in 2011 if the tenant was without heat the  landlord had to give a rent deduction

valves

@ December 31, 2012 5:26 PM in $50 if you can figure this out...

Those are ball valves, not radiator valves,  you definetly need a STEAM pro to look at this. looks like a steam/hydronic hybrid (just kidding )  looks like the installer thought they were hooking up some form of hydronic system.

traps

@ December 31, 2012 4:20 PM in $50 if you can figure this out...

As all have said take a look at the traps, when was the last time the cage units were replaced on the traps, there most likely a hoffman 17c, they are not that expensive.  Is the cond. return piping  below the radiator pitched right.   I recommend like others you have landlord have a pro look at the system.  Also if the rad, valve disc has deteriorated within the valve body it could be blocking condensate from returning

header

@ December 31, 2012 3:52 PM in header connection questions

If this is  a cast iron sectional boiler the boiler will expand and contract differently than thae carbon steel piping in your header, causing press. on the sections, I would repipe it with swing joints and companion flanges  ASAP before the sections start to leak

rad.valve

@ December 31, 2012 1:03 PM in $50 if you can figure this out...

Disconnect the radiators in question, inspect the disc on the radiator valve, if it is cracked or deformed steam can get in but condensate cant get out. i have had this problem before.  solution, replace the rad. valve

city steam

@ December 30, 2012 2:52 PM in district steam

While working in San Fran. I worked in a lot of old hotel, apt bldg's and commercial bldgs that utililized what was called city steam. The steam being generated by large boiler complexes located around the city, than transmitted under the streets at high press. the lines would go into the basements of bldg's and into press. reducing regulators, Most systems were 2 pipe with the condensate return lines piped into a cond. meter.  the meters were quite clever, they used a device that resembled a minature water wheel to meter the cond. used. Over the years private co's bought the systems. This became an alternative to bldg owners who had old boilers that were in need of replacement. I am sure this system is currently in use in other cities, It was just quite an experience to get to work around all the regulators, piping and valves
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