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Post #11 is that a circuit setter valve?

Piping is 20 years old has anyone cut any sections out to see how much lime is in the hot water pipes? After that ultrasonic flow meter to check flowrates. This is a design job for a engineering...

Post #1 didn't include 1ps just RA 2000

Have you talked to the local rep or called the factory tech? Have you checked alignment with a string and with the belt under tension because theirs play in bearings.

Ra2000 is for two pipe steam not one pipe. Look at the submittal sheet.

This trade for last 30 years has been changing constantly every month. Tools, equipment, technology and electronics. One main problem is the contractors themself pigeon holding the men and not cross...

Computers have made life and the job easier. Have a unit tripping out log it. Gives you time and sensor readings. Ems systems plug and play. Need a wiring diagram or manual just pull it up. Oh for...

Is it on a pump down?

Old guys and im old over 40 years in this trade main problem you've been beat down by boss and customers and most are tired and used up. If you don't go to classes every winter like to read manuals...

Get a big rosebud with the head 3 /4 -7/8" and handle for it. You will use it even on smaller copper in the wind.

Heres a link to abb just scroll down to literature HT500 drive system. Supposed to be 98% efficient. Something has to be moving like motor or blower bearings have excessive play. Base of the motor...

Think you have to ask yourself do i want to know how these things work or how to fumble through. If you don't have the basics of refrigeration, electrical, soldering and how to work with tubing you...

Used it at my house very disappointed.

Contractors and especially small contractors are profit driven and whats sad if they work in the trade they think everyone walks on water except them. I was fortunate to work for a mechanical...

Alot of electric companies offer a energy audit that includes a blower door test mine charges $50 gave me over $50 in light bulbs, caulking and other stuff.

Think you have a air infiltration problem and a unit that has enough capacity to keep up. Blower door test would tell you how tight the house is and the duct work. Hows the attic ventilation?

Old house poor insulation cold wall and warm ceiling. Floor exhaust won't work very well.

Poolpak +1

Buy it from a big box hardware store it's stored inside. But it's not spotless.

Mechanical engineering firm can design what you want.

Yard of concrete weights over 4k. Look at the spacing of the upright steel. There 30' apart not 10'. Beams should of been filled with concrete they weren't. Some of the workers express there concerns...

Is the expansion device a orfice if so check the number.

Every bundle that I've seen that froze the collapsed tubes were closer to the tube sheet on the feeding side of the ex valve. Also funny that the tube collapse was all on the inside of the curve...

Dirty evap coil, blower wheel, not moving enough air, bad expansion device or dirty condenser running head up still short of gas.

Calibrator for 1.21 gigawatts flux capacitor. A highly sought after calibration tool by Dr. Emmett Brown.

Extank air pressure sets the system pressure by pressing up against the fill valve portion thats why when the tank was at 4 lbs it wouldn't take any water and raising it to 12lbs system filled to...

Don't see a water regulating valve just a gate valve if thats what u have the gate valve is broke gate. Ex tank will not stop a fill valve from filling.

Don't see a water regulating valve just a gate valve if thats what u have the gate valve is broke gate. Ex tank will not stop a fill valve from filling.

There are industry standards and industry practices. Standard what is 100% correct, practice what ever it takes. Every company is different just like service people. The newer refrigerants vrs older...

What type of compressor scroll or recip? Scroll wouldn't have any. Recip 35 with 20ld diff.

Boiler design/ flue design has gotten easier with newer controls and vfd's. Controlling flue fans and makeup air. Had a job 20 years ago three 250 hp steam boilers low pressure common flue. A...

One qualified guy got me hooked
https://m.youtube.com/watch?v=xUgySLC8lfc

You want to double or triple belt life and years on pullies. VFD and if the manufacturer of equipment would design the drive system not at the motor hp but 25% bigger. And all drive designs look at...

Problem with whole system treated with glycol is more pump is needed, less heat transfer ,cost of glycol and the maintaince.

Installation looks good but a power failure coils done. Plate hx pump and expansion tank and glycol the only 100% way for protection.

Pool pac they make indoor swimming pool units they even have all copper coils including the fins. Not cheap.

Rtu's that use 410 a subcooling might tell you enough. Reason being the condenser alot of the time is micro channel or enhanced which the unit is a critical charge or have to by chart on the access...

So tell me exactly where in a system your going take your wb temp on a built up system since right off the coil face is 100% RH. If coil temp is 40* how much more can you do equipment wise. I'm...

You all work to hard! Buy a new distributor, tubing and couplings. First solder 12" tubes in distributor and couplings then the valve all on a pipe vise in the comfort of being on the ground not...

So get your degree as a mechanical engineer i had the privilege of working with one that ran service. Took him 9 years of night school from washington university saint louis. As a serviceman if you...

Do you have a closed circuit tower or open tower with a plate heat exchange need temps in and out. Nevered answered my question about water quality and the stainers.

Could be short of gas or piston size / coil size isn't matched. Need pressures and temps of lines.

Most systems use auto flow circuit setters calibrated to a certain flow rate and are they the correct ones for the units. Problems come from fwo things bad water treatment / glycol has turned to p**p...

18* to 24* is normal td lets first see what the units doing. If its 90* outside and return is 90* we all no the problem lets.get.some dr y bulb temps.

What is the outside temp and water temps. Has anyone put flow meter on the four units? Cleaned the strainer, checked design flow of pumps? Is there a heat exchanger and has it been cleaned? Loop...

Phase monitor to ems to shut down all equip and call you.

No hospital is free. In rural areas they just close taking care of the poor.

Return drops thru the top econ on the back?

Theres a member that is a water treatment guy havevt seen him here for a while another poster has a question

Gas company replacing a line in the neighborhood ditch floods pipe gets water in it and doesn't get drained properly.