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Converted a 30GX air cooled outdoor unit to Ice Rink duty. Had to replace expansion valve orifices on electronic EXV housed in economize also selection for brine only allowed unit to go to 18 degrees...

I think VRF is a ridiculous application. After working on many large DX systems. Comfort cooling and low temp the common complaint was refrigerant usage. Ammonia has stayed popular in Industrial...

spend another 20 years with no pension and relying on a shop for health insurance have to get Cobra when you switch contractors then have you families health history gone through and denied coverage.

Ability to sell?
Practice your lines
Mam your lucky you called us your unit needs extensive work can't believe it ran this long. I can fix anything just a matter of time. This old girl is going to...

I meant who would work non Union if they have a choice

Yes that's what I meant non union sorry

597 did try to organize Trane. Vote was lost by 1 vote. Trane guys wanted their vacations in the contract. 597 does not have vacation, sick days or holiday pay in contract.
Also Trane guys were...

Wow you went rat bet that was a proud moment

597 made a valiant effort to organize Trane it came down to one vote. Older Trane guys did not want a talent pool of 597 to challenge them. A lot of our guys like Trane equipment and have told Trane...

434 quality local union great training facility and instructors

Better pay in Midwest than in Florida well thank the Union influence. Union Shop hourly scale not forced to sell just fix it right keep customer happy and you stay steady if you can't you won't stay...

Multi stack never saw one that had a positive customer after 5 years. Leaks heat exchanger failures.... Countless service bills. Two buildings (Data centers)one put in multi stacks because of ease of...

So you individually pipe each room with a coil then you add on an outside air unit and I presume you have to condition that air also? When the supermarket industry is trying to get out of piping...

I'll stay as a Pipe Fitter who works on repair of mechanical equipment. Occasionally installing it.

Because the training is separate. Even though most of the skills are common the Service Contractors are very specific that they want service training only. They want second year Apprentices to fix...

Does 469 have a split scale for Construction?

In 597 all Apprentices are classified as Building Trades. Many Contractors have Service and Construction. So a building trades Apprentice can work for an HVAC Contractor.

Salesman called me asked why i figured so much time to replace a compresser on a Desert Air unit. Says another shop beat us by 2k
"first I never saw it run, the customers maint. condemed it. Unit...

Still cant beat a chilled water system. Nobody cares about effeciency when its not working

Sounds like a job bid by someone with just enough knowledge to put the car in Drive but not enough to check the brakes. Any AC DX job with an Accumulator or an Oil sep. Is a bad system wich has been...

Have not had to work on one. Put a sungle evap system worked fine. Just think too many issues with multiple evap dx AC systems.

Went to a Daikin Training Seminar the more i listened the less I would want to burden a customer with one of those systems. Have n

Discharge superheat higher than 50 deg might have broken ring or
Cracked piston. If its a recip. Can you pump doen either wirh suction valve or liquid solenoid/valve? If it does not pull 15" you...

Sorry about 638. 597 has an open door policy in it's weld shop. Pass the Weld test requirements and you will get a chance. Come to Chicago Service Fitters & Construction Fitters actually get along

Thanks figured it out afterword

Dont know what PM is
My email billwren20@yahoo.com

Originally in 2005 at inception of HvAC Apprenticeship HVAC/R and Construction Apprentices after 4 year and 1 year on Journeyman permit (1 year at scale & Bennies stillassigned to Contractor)...

Yep 1 vote decided it. Trane guys wanted vacation and sick time covered in contract. Business Manager tried to explain that 7000 members don't have that not going to change it for 20 new members. I...

Yeh NY is F-ed up. 597 merged with 422 Joliet. They had a bad agreement for Residential 1/2 top scale 5 tons and under no retirement bennie. Now 597 OK it. All officers except one worked big jobs....

More classifications more lower pay scales. Pipefitter installs it a Pipefitter repairs it. United we bargain divided we beg. Seems like a moot point new guy running HVAC for UA came out of...

Talk to 638 NY Coordinator few years ago. He was trying to change it but change is hard to accomplish. There is no difference on pay for 1/2" or 12" . Why a difference in pay for 3 ton or 300 ton?...

2sac I started in 84 in shop for RMC saw how poorly they treated B card guys. They told me a minimum 8 years to be an A card. Went to work for Dual Temp in same capacity. Got lucky in 85 and got in...

It would to me

Chicago Pipe Fitters 597 had no HVAC Apprenticeship just a Construction Apprenticeship. Some of us Service guys got lucky over the years and served a Construction Apprenticeship. What 597 Service...

If your that good how come your not an A card?

Read the article. I believe R290 is propane. Was told very popular in europe.ammonia is a lot safer than propane

Wow seen that myself. Rats have couple of guys who can fix the **** they put in. If they did not put it in their selling a new Furnace and AC.

There are lazy in every occupation. You missed the point. The volitile field of HVAC/R Construction and Service Contracting. Where a shop can lose work overnight. Union members can jump to another...

I can leave one contractor start the next day with another and not have to worry about losing health or retirement benefits. My steady shop ask if we could take two weeks off because we were "slow" I...

Evap pressure can be lower at times than water side with compressor running at lower load, unloading or low on charge. Bernulli's principle is as simple to explain as adding Miracle grow in your...

My experience any thing over 20% is a problem if it was designed for straight water. Approach temperatures increase to where chiller will drop out on refrig temp or pressure while chilled set point...

Female copper adapter use a file to knock down ridges on male pipe thread on schedule 80 steel pipe. Use silver solder flux like pipe dope. screw in steel to copper do not over tighten. Use Silver 45...

Moved wall all the way open then dip swicth MP so it thinks its a DK compressor

Some of the original Ball Valves leaked in sub zero conditions. I have replaced them with JB brand with seal caps

Work for a Pipe Fitters Chicago Local 597 shop and try to say your not welding yet because guy who starts welders is not here. They'll immediatley write your check and send you on your way. Bridge...

Local 597 never had a MES designation. No Formal Apprenticeship for HVAC only construction.They used the "C" card (appliance Journeyman) and "B" card (Metal Trades Journeyman for classification....

not to get in Apprenticeship or local but some contractors will not hire convicted felons. You probably will be prevented from working on Security clearance sights too>

Local 597 never had a MES designation. No Formal Apprenticeship for HVAC only construction.They used the "C" card (appliance Journeyman) and "B" card (Metal Trades Journeyman for classification....

Agree with Dennis. Electronic TXV just like a regular thermal one its not feeding enough. you might want to check suction pressure and temp sensors against actual readings. Sensors out a few degrees...

Just like a 10 ton roof top it can only do so much. Full load amps are reached and you are not making set point you have a load exceeding capacity. customer may say the chiller always handled load...