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Reminds me of a question my uncle once asked me.
“How do your get a good credit score?”

“Pay your bills on time, and don’t rack up too high of percentage of available credit on your credit cards”...

Do you mean a dual fuel system? gas furnace with a heat pump?

If its in standby, then nothing is telling it to run.

Is this on a multiple boiler install?

Space heating? Domestic Water heating? Combo?

That makes sense. If the valve is getting stuck, it’s probably getting stuck when the differential pressure across the valve exceeds the actuator power.

That differential would be at its peak if...

Will the stem spin 360? Or limited to 180?

If limited to 180, then you should be able to figure it out easy enough. If 360, less likely but possible.

If thats on a pump, and then the port...

How do you size the transformer?

I understand how a transformer works, and I get that the wiring is “external” but when you wire it as a buck/boost, you physically wire it in a way that forces a cross connection between the primary...

I dont follow. A regular transformer to me, is primary totally isolated from secondary.

Like a control transformer, no cross connections, except for bonding, which is not current carrying.
...

Yes, but the regular transformer to be certain it would work would need to be rated at the full load of the condenser.

Because the secondary of the transformer would be in series with the load,...

Look up the Honeywell Grey Manual. Should be able to find a free download online. I am almost certain the pneumatic intel you seek will be found therein.

The problem is even if you find documentation from the bowels of Daikin which is the company that took over the remnants of Herman Nelson, which was absorbed into Mcquay International there probably...

Not really

Ashcroft.

Duragauge

Sometimes its hard to tell the difference between good and tight, good and snug, and “oh crap what just broke”

Had a guy recently break the bridge bar for the packing on a 12” OS and Y valve.
...

How about one of these?
https://www.harborfreight.com/12-in-drive-25-250-ft-lb-digital-torque-adapter-58706.html

I use one all the time. I’ve found it to be very accurate.

Punch down tool - a surprisingly large number of chillers use punch down style wire connections for sensors and such at the control boards.

Soldering iron, signal generator

Ive changed out the valve bodies in my testos before. Pretty simple. I think I even keep a couple spares cause I have 2 sets of 550’s.

You can order them online.

I doubt the voltage is the problem, but hard to say for sure.

Wait till its really hot out, the voltage will probably drop as command in the area increases.

If its still loud…its not the...

Might look into an in house position in facility maintenance.

Somewhere like a college, hospital, manufacturing, industrial plant, or power plant.

Your existing skills would translate easily,...

I would request a coated coil then to provide an option to the customer for improved longevity.

A big concern on that type of unit is making sure the top goes back on and can properly seal.
...

Those units utilize a ratio regulator to increase the fuel volume based on the air pressure from the combustion blower. The modulation is manipulated by a 0-10vdc belimo actuator that throttles a...

I looked up a 1” “belimo ball valve” and the actuator shown was an LF 120 spring return which is 35 in - lbs.

But to be sure of correct fit up for the adaptors, Id take the numbers from the valves...

If you set the domestic expansion tank to 5 or 10 psi over line pressure, it wont do anything until the water expands enough to generate that pressure.

Pre-charge gets set at design fill pressure of the system.

Is there not an actuator on the valve now?

The biggest issue is gonna be mounting. Adapters are almost always sold separately from the actuator.

Ball valve, globe valve, 2 way, 3 way?

Who...

Looks great. Shows your talent well.

Im just curious of the layout.

If the furnace was rotated 90 degrees to the side the return drop is located currently, then the return could have rolled...

Also want something that can do micro amps for testing flame rectification.

I heard about that trick the other day.
Battery was cheap enough.
I already replaced the battery. And the probe tip just came in.

Seems to be fine now. Actually turns on in battery mode, ran...

Paid a little more to get one locally. 30 bucks. So far so good. Now for the missing probe tip.

New to me H10. The shop was cleaning out the truck of someone that no longer is with the company. They left a what appears to be a never used H10 on the van, still had the sales wrapping on it.
...

How big of a problem is it really?

Id venture to guess that most people with elaborate kitchens and high end hoods have them more for appearances than anything else. Might see real use around the...

If you’re working for Walmart, as you’re username suggests, they have all the necessary information in house for exactly how to adjust and what to adjust to.

Just gotta reach out to the right...

The leakage around the blast tube will require a new rope to seal, but should also not be generating high CO levels.

The pilot problem could be several issues. Most likely is that its just dirty,...

Charge the equivalent to what it takes to do it. If nobody wants to pay that, then the market is telling you something. Best to listen.

Nobody puts any value on free. They never have.

Lots of good stuff here,

But 3 out of 3 business that are never started fail too.

Your gonna have to have one made. Lots of machine shops/ metal fab shops around these parts that could make one for you with the right specifications/measurements.

Don’t have to go back to school for a business degree.

Just take a few business classes.

Chances are the local community college offers community outreach programs for entrepreneurs to help...

The banks would lend you the money to start a business if it were backed by the full faith and credit of the federal government, the way that school loans are. Even private school loans are generally...

You bought 3 sets?

Yep. Its a very pernicious business model.

Thats a bummer.

Sure.

But knowing your getting shafted doesn’t change the fact your getting shafted.

For example:
I know Im getting shafted by social security, and federal income tax.

Nothing can be really...

Its not 1980 anymore.

In state tuition is 10 to 20k per year. Books another 1500 per year, lab fees etc… another 1200 per year, room and board another 10 to 15k per year.

In 4 years thats...

You should see about finding and taking a class on the Siemens LMV3 platform

The best information for flow requirements would be found on the building design drawings, and the pump, valve, and equipment schedules.

If your lucky there will also be a intended operating...

3.3” manifold should be close enough to operate without problems.

More likely something with the draft fan/wheel not be set right. IE rotating backwards, or wrong wheel, wheel not centered, or...

Essentially the same.

Minimum static pressure would be set by height from the fill point to the top of the system plus a cushion of say 5 lbs, or by minimum NPSH requirements of the system pumps...

An micro-manometer works well for draft if you want to get all fancy about it.

Otherwise the simple 760 works, and so does a magnehelic gauge with a low enough range.

You can send me the video. Email in profile.

Ive worked in hundreds of boiler plants.

It sounds like what you may have is a DA tank, and not a basic feed water tank.

DA tanks often have...

Are 2 units serving the same space?