Heating Help

gpm

@ April 19, 2013 9:48 AM in gpm thru 2\" pipe at 50 psi

look up  water flow through hose - Engineering Tool Box   there is a curve.

boiler

@ April 8, 2013 11:40 AM in Condensation/feed tank problem

Is the Peerless boiler a new replacement for an old boiler, the feed tank may have been installed to compensate for smaller water content of the Peerless boiler. I have seen some fitters install horizontal tanks at boiler water level to do the same thing, but alot of these installs are not to code. . As everyone else said , you need to find and repair or replace all system traps, If just 1 is leaking steam you will still have problems.  As pumpguy said dont put a F&T Trap ahead of tank on 2 pipe system.  F&T traps are good for removing condensate from large risers and steam coils to name a few applications.

piping

@ April 8, 2013 11:06 AM in wicked water hammer and boiling in pipes

Uninsulated piping have a heat loss 5 times greater than insulated pipes, uninsulated pipes can cause a mid-cycle water hammer problem that wasnt there when piping was insulated,  this is all in Dans book, Lost art of steam. In my exp. I also found uninsulated steam risers in bldgs can cause banging and ticking in piping

piping

@ April 8, 2013 10:36 AM in wicked water hammer and boiling in pipes

Dont forget to insulate all steam piping, uninsulated pipes can cause problems

banging

@ April 4, 2013 9:48 AM in steam radiator bags loudly when heating and cooling

the radiator valve looks pretty old, I would take the bonnet loose and see if the disc has broken down and is partially blocking steam/condensate

pipe dope

@ March 29, 2013 7:36 PM in Threaded connections

For fittings i never want to leak i would use expando or grip.   Our you at the Hall of Justice, I worked for a co. that did alot of work there, i knew Manee , he retired also Knew Renee and Tom.     Retired fitter Rick

heat pump

@ March 29, 2013 1:45 PM in Rheem High Pressure Trips

Paul , just curious what you found out on your high press trip problem

hvac

@ March 25, 2013 9:47 AM in Integrated HVAC

You should think about installing a HRV ( heat recovery ) if your going all out in this proposed system

t-stat

@ March 23, 2013 11:03 AM in reliable Low cost thermostat with remote sensor

Alan where is this,  I worked in the city from 1991 to 2011 ,  Nathan look into the White Rogers IF 90 series  you can run 3 remote sensors and set priority or sensor average.  I think the t-stat is around $180.00 and the sensors about $35.00 each

press.

@ March 21, 2013 9:50 AM in gas pressure

5-7" is correct as U.J. said for nat. gas.  Most Gas co. dont supply over 7",  In residential gas equip a min. of 5 " must be seen ahead of diaphram type gas valves for them to operate correctly as they depend on a press. drop to work,  On commercial boilers etc it is better to have at least 6 " for good pilot press.  Pressures over 1lb (28" ) can damage most gas valves, 

gurgling

@ March 19, 2013 10:00 AM in clanging, gurgling from recessed convector radiator

Like Nicholas said, you need to look inside the rad. valve.  I had the same symptoms on a job, I found the disk had partially deteriorated and fallen into the valve body  allowing in steam bot not allowing condensate out. I replaced the valve and solved the problem.

voyager

@ March 18, 2013 3:55 PM in Maintenance tech

Voyager pdf on yahoo

voyager

@ March 15, 2013 1:02 PM in Maintenance tech

You can get a manual from your Trane parts rep.  its called the voyage continues,  without this manual it is going to be difficult to trouble shoot the equip. The voyager system needs its own Trane room sensor which interfaces with the microprocessor.  If a conventional t-stat is used a t-stat interface board (cti )  must be installed in the unit. If a conventional t-stat is installed without the cti board the unit will do strange things.      get the manual it is needed.

added

@ March 12, 2013 5:43 PM in Replacing expansion tank

Check your local boiler or plumbing code to see if you can install a valve before the x-trol tank

exp. tank

@ March 12, 2013 5:39 PM in Replacing expansion tank

As you said get water temp. down, below 100 dg.  this will keep you from getting scalded. A flooded exp tank will be very heavy, I recommend a second set of hands, if that is not possible than support the tank with a pre made box or rigging. The last one I did I shut off the fill valve (make sure it is a possitive shut off ) I lowered the press. to about 2 psig. I had the threads on the replacement tank pipe doped or taped. I also had a inside threads of a ball valve doped. you will also need a close brass nipple on 1 side of ball valve.  I unscrewed the tank ( it was very hard to hold on to due to the weight)   and immediately screwed on the ball valve, I now had time to install the new tank, Doing it this way kept air out of the system.  Keep a shop vac,lots of rags and a plastic garbage can at the ready, you and the equip rm. will get a little wet. the alternative is to drain all press. which usually results in air in the system.  I would only do this If you are an experienced pipefitter or plumber

air

@ March 12, 2013 5:04 PM in Water Noise From Baseboard Loop

Make sure all pumps are off when bleeding air out of problem zone, keep the fill press. from going to low when bleeding air., if your bleeding out of a coin or key vent you need to bleed for awhile, you may get air than waterthan air, continue for several minutes untill you get a steady water stream. The tricky part is keeping the fill press up, I like to keep it just below the relief valve setiing when bleeding,  25psig., to do this i open the bypass alittle bit. some fill valves like watts have a built in bypass. if you dont have a bypass than turning the set screw or nut clockwise will increase the fill press.   Is this does not work than purging that zone would be what i would do next. to understand this process look it up on this sight.

exp. tank

@ March 12, 2013 12:38 PM in Replacing expansion tank

Unscrew the blue or plastic nut on the bottom of the tank and check for air with a tire guage, if water comes out than the diaphram in the tank is ruptured. check this before changing exp tank. You may have air in your system, find a high point and see if you can bleed any air , also check the auto air vent to see if it is possibly pulling in air.

flow

@ March 12, 2013 11:34 AM in Flow Meter Recommendations-

If you have inline guages, petes plugs or circut setters you can use a pump curve, Bell and Gosset makes system flow documents ( circut setter wheel )

burner

@ March 11, 2013 11:04 AM in adjusting the air on a power flame gas burner

I would sub out a burner co to help, I had to do that once, and learned invaluable info on setting up power burners , I just explained to my boss that factory help was needed for start up. Remember the burner goes into high fire damper pos. for prepurge than goes to low fire pos. for pilot ign. high CO can be caused by to little air and to much air

cleaning

@ March 11, 2013 10:35 AM in How do you clean a sooted gas boiler with water?

Are you talking about a boiler heat exchange coil like a Raypak or Teledyne Larrs ?
I would lay down lots of plastic sheeting. its going to get messy.  I than would use a large shop vac and CO2, or compressed air.  I have a large CO2 bottle with a 5 ft by1/2 inch i.d. hose open on 1 end i use.   Be careful using CO2 indoors and in closed areas as it can deplete oxygen levels.  You will get dirty, where a Tyvex suit and a good particulate mask.

powerflame

@ March 10, 2013 4:48 PM in adjusting the air on a power flame gas burner

Look on Yahoo, there is a pdf for the IOM for that burner. You should have a solid background in power burners and have the right tools (draft guage,combustion anyl.and gas press. manometer ) before working on this burner, there is detailed info on setting up and start up.

copper lines

@ March 7, 2013 9:27 AM in Rattling Copper Pipes - Arghhhh

This is that system we saw before.  that steam system that looks like a hydronic system that wants to be a steam system.