Best Of
Re: Want to add water to increase boiler system pressure but stumped
Correct. Black valve was closed. Open it so that the automatic fill valve can add the proper amount of water to whatever pressure setting it is preset for. 14-15 psi is normal. This should be done whether the boiler is running or not. If you are certain the auto-fill valve is working properly, let the system run a proper cycle and then bleed any air out of the system manually if you have bleeder valves out on the radiation system, baseboard etc. There should also be some automatic air bleeding mechanism near the boiler. Noise of air sloshing in the pipes is an indication that you need to fill and bleed. Also if there is no heat in the pipes during a call for heat to the boiler that also means there is probably no flow and somewhere the system is "air bound"— often at the circulator.
psb75
Re: Getting rid of the old boiler sections
If there's a little "room" in the job, Sub it out. You and your guys spinal discs will thank you down the road. Mad Dog
Re: residential boiler outdoor temperature sensor how to test
Just turn the knob all the way from one extreme to the other, it should click around the outside temperature number. That usually indicates it is working and accurate.
It's possible some other relay or control will be heard when you turn below the outdoor temperature. It is turning on the system.
hot_rod
Re: So fresh water carrying O2 causes corrosion. How about a HOT WATER TANK feeder into the boiler?
How is HW "Boiled in a HW tank?
pecmsg
Re: Riello 40 red light problem
knowing at which point in the process it fails would help you narrow down which part is failing
mattmia2
Re: No water to third floor
We are talking about static pressure, here, not dynamic pressure. 20 PSI is more than adequate to raise water 30', as stated. The pressure EX tank has nothing to do with raising water, only acceptance of heated water in a closed sys. Verify pressure with an independent gauge that you can screw on the boiler drain valve hose connection, as stated.
A Fil-trol EX tank can have a stuck valve or plugged inlet screen or be water logged all which can prevent sys fill, just saying.
If you have verified 20+PSI and functioning air vents on the 3rd floor and no water release, look for closed shut off valves somewhere on the system. That would be my tact.
Re: Getting rid of the old boiler sections
Or a sledgehammer. Or hire movers to deal with it.
mattmia2
Re: No water to third floor
Measure from the top of the highest radiator on the 3rd floor to the pressure gauge on the boiler. The measurement does not have to be exact but close. Next, divide that measurement by 2.3 to get the pressure setting for the boiler pressure gauge. Example; 23 feet /2.3= 10psi or 46 feet/2.3= 20 feet. So, whatever the distance you measure divided by 2.3 = the minimum pressure required to push the water up to the top of the highest radiator. Then add 1-2 lbs for safety to get the pressure where it needs to be. The next thing I would do is have the whole system serviced by a reputable service company. Check on this site for someone near you to fix all your problems.
Re: residential boiler outdoor temperature sensor how to test
If you do need to replace that control, consider an electronic setpoint control. It's digital reads temperature and has a lot more control settings.
Honeywell, Penn, Ranco, Johnson Controls are other brands. Should be less $$ compared to the old technology cap tube controls.
hot_rod
Re: Weil mclain ultra 105
on my boiler standby is shown when the boiler is at temperature or a no heat call
Depending on piping and control logic, a secondary or primary pump may still be running on a heat call but the boiler does not not need to fire if it is at temperature
hot_rod