Search:

I would definitely eddy current before going any further . I would also cut away some insulation from the bottom of the evaporator to visually check condition of barrel .

I am wondering with the information available does the rotor have a defect ?

Condenser pressure too low ? Faulty condenser pressure controls ? Condenser fan contactor stuck ? Condenser water temp too low ? Pull the line side wires of the compressor contactor and verify time...

I have picked up faults in the wiring from the contactor , starter , or VFD with a meggor that a typical ohm meter wouldn't detect .

High Pressure Switch was not by-passed upon my arrival - can not say the status prior to my arrival . It was the second thing I investigated that night . Still waiting approval to return . I feel...

Response was thier devices are tested and rated to labeled pressures . They have no control of installation practices or techniques .

I am still awaiting the go ahead for further work at this facility . That unit repairs got pushed back due to a major BAS system loss of communications to ALL systems ; HVAC , lighting , dock door...

Waiting for approval to proceed . I should get go ahead later this week .

Yes there is a JCi Metasys on-site . I'll need to see how much they will allow me ; seem to be very protective of thier controls system . That alone has me a little suspicious . I can navigate the...

There is no check valve in liquid line that I have seen yet . Airflow readings are very close to design / start-up reports .

One drier ( Sporlan OEM ) failed at the end weld - perfect separation - looked like it could have been cut with a band saw . The other drier was an Alco / Emerson ( field installed when compressor...

No welded contactors . No pump down in use on these units . This could get interesting as there 34 of these systems with 4 circuits each . Equipment is approx 9 - 10 years old . I have already had...

No liquid line solenoids . However there is a diverting valve in the discharge line to bypass the condenser to go to reheat coil during dehumidification

Thanks for the feed back everyone . One drier came apart at the end weld - perfect separation. the other had the casing blow out just about dead center . High pressure switches verified and...

I am wondering if there is moisture in the system ? Pull a refrigerant sample also . One can not debate science .

POLYUREA is the only grease for motors on VFDs . DO NOT MIX GREASE.

None that I have seen . Need to give it 100% evaluation . It was dark and had to deal with the media / TV crews ! " NO COMMENT " as they have my chariot in background

I am
LONG DAY / NIGHT

I have a facility which has several AAON RTUs . The refrigerant is R410a . The past month two ( 2 ) liquid line filter driers have ruptured . One was OEM installed Sporlan and the other ( ALCO /...

I always pump some oil into the suction prior to start to prevent a " DRY START " never lost one on start up

I use the " PEPTO - BISMOL " mixture on the FRICKS . ( 567 with the " RED " )

I have repaired YORK YTs with corroded charging lines at the chiller barrel . I love the feel of hot sparks landing on me .

Weld the flange to the chiller barrel . Been doing this for the past several years . My friend in North Carolina is doing same thing . If it has to come apart again cut the liquid line and weld it...

What manufacture , model & heat source would help to get information to you . ABSORBERS are unique machines . One either can work on them or " SALT " them up ! I have responded MANY times to service...

" It's hard stop a TRANE " " It takes an icing and keeps on pumping "

Notice the tile is pitched with a cable tie on the grid

I remember a nightmare MANY years ago ( 1985 - 1987 ) had a YORK RTU Heat Pump with a check valve header similar to what your pic shows . It still wakes me up at night !

I don't like to alter FACTORY cabinets ; however the installation of a small air mover to reject cabinet heat maybe an option .

I am leaning towards oil saturated refrigerant. Do you know complete history ? With information given , I would pull and distill refrigerant ; observe the quanity of oil that remained in recovery...

LOW PRESSURE MAN NO PRESSURE LOW PRESSURE ( as long as I have 50*F water around I can change a shaft seal )

I hope it was thier first AND last install ! That is a text book list of things NOT to do !

I prefer a sharpened pencil then cut it flush ; the oil will expand the pencil to fill any voids . Be sure to use EXECUTIVE BEIGE paint to make it look OEM ; if its a YORK same procedure but use...

One aspect to focus on would be what control panel is being used .

It usually is never just one thing. People joke ; " You are the only person I know that turns replacing an open fuse into a week or more worth of work "

It maybe better to replace the compressor . Without knowing the conditions ; once you open it up , who knows what you will find and have lost days of down time . If you have the time , yes go for...

In my opinion with it being a split system I am wondering if pipped properly . Where is the condensing unit vs the evap . I had a project years ago that replaced compressors every year . I was asked...

Only thing I will add ( and this has come from many different manufacture TECH SUPPORT ) the electronics gets caught up in a loop due to a power indifference and removing power and restoring power...

What is the cooling mean of the condenser ? What refrigerant ? What is the evaporator trying to do ? NEED MORE INFORMATION !

I would also suggest a Rigid E-110 . It is small and opens wide and VERY useful . It doesn't have teeth on the jaws however great for pipe unions

I have parked many rental chillers . They set outside and pipped into the building ; either fire hose or Victaulic PVC . Power is obtained either from disabled chiller starter or have a generator...

How many fan blades will fail and destroy coils and pipping ?

Good work isn't cheap / cheap work isn't good !

Need more information . Operating refrigerant pressures , water temperatures , pressure in / out , amp draws , % load , etc .

Park and connect a rental. Then evaluate your options .

Every sample that I ever sent to HURGURTH came back stating moisture was present recommended oil and filter driers be changed . NRI seemed to be the most reliable

Check with the manufacture .

Verify the wiring for the sensors are landed correctly and not crossed between circuits ; EX ; circuit one sensors landed on terminals for circuit two

I recommend oil analysis every year ; approximately the same time with the same lab . The readings can be used to verify to the operator / customer on potential problems . If they neglect to heed...

I converted many YORK YS lines to stainless used evap barrel to form the radius . Installed stainless on TRANE machines also

I have to say ; you are way in over your head by viewing your post . Call in HELP .