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I use a Flir One Pro plugs into my iPhone and iPad

Trend the liquid level condenser water entering and leaving temps , %fla and subcooling in the Optiview Trend screen over say an 8 hour period and see what the actual physical liquid level is in the...

Stick a magnet beside the sightglass

I would consider the discharge superheat as a critical part of efficiency / load / refrigerant charge analysis especially at full load

Yes you should quote to remove charge weigh it and establish how is lost , typically you can lose about 40% before it starts to seriously affect and cause issues . Repair leak pressure test evacuate...

The physical liquid level in the condenser sightglass should be between 1/3rd and 1/2 the level setpoint on. The screen can be anywhere between 40-60% setting , it doesn’t really matter , what...

You would have to contact PTS in Jadec York Pa for info on OM chillers as each batch can be unique

Does the VSD have a harmonic filter too ? Are the gate driver boards powered from the SCR trigger board ? Have you conducted a gate driver test using the TEST button on the VSD logic board ? Do the...

Edwards Oil sealed rotary vane vacuum pumps are the best in the business and been around for half a century

Did you replace the I/O logic board at the same time, it is the one beneath the main motherboard in the Optiview panel. Also, it is normal on power up of the Optiview to get a control panel loss of...

It can vary depending on what setting you have in the sub-cooler portion of the micro-channel condenser , the level in the Flash tank is not controlled it is floating, that can also depend on the...

On early machines it came from the compressor , discharge from the side of the compressor, we moved it to the downstream side of the oil separator as we found that the original position was no dry...

Why are you changing the oil ? Has the analysis recommended changing the oil ?

The reason for the alarm is because you need to ensure you always have a liquid level in the Condenser to ensure you are always feeding liquid refrigerant to the falling film evaporator , at very low...

Hi Moideen, I think even if you answer him he will then come up with something else to berate you with or berate others, if he insists on an answer get him to right the question down, sounds like he...

Are you sure what the refrigerant is and a picture of the plant would be nice just to give people an idea is size , capacity etc, plus although it is sensible to have planned replacement years ago...

I would dis-connect motor leads at the motor terminals and check the readings there at the motor terminals, is the chiller under positive refrigerant pressure? Is the refrigerant contaminated with...

Have to agree with that, well put

If only i had two mouths, i could drink more

You have got to replace with new really, the fact that this may not be a convenient time is something that should have been considered and planned for years ago. When you look at the refrigerant used...

And if the seal blows you will lose all the refrigerant a lot of oil and a big mess

Agree with HYP ,

And I am guessing you run 25-50 hz on a 400/3/50 system so 50hz is your max speed


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Check that your oil eductor is working correctly, the evaporator could be oil logged


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2. At the keypad, login at SERVICE access level using code 1 3 8 0.
3. Select Condenser screen.
4. Press the FAULT ACKNOWLEDGE key on the Condenser Screen. A dialog box appears displaying “Enter...

You will have to contact JCI in Singapore , let them know if the chiller was made in Wuxi, San Antonio or Nantes

It is the common mode fuse FU27 see page 22 of attached diagram

regards

816119

EBM fan deck will bolt straight on there , you can even scrap the ABB and use EBM EC fans and daisy chain the signal for speed from a new discharge transducer. EBM are better quality but cost more...

I would swap them for EBM fans, make sure the little cooling fans on the ABB drive are working (if they have failed you get a loss of comms message on the ABB VFD, replace them with locally purchased...

Did you peel the thin film off the display before mounting it ? Did the new display work fine then fail again ? or are you getting unusual characters on the display, check the cables are the correct...

Not broken one yet in 18 months, so far so good ��

Good news , if you can get some logs following the instructions i sent you then that would be helpful too. As for the 'setting' procedure, finally , although it is better on the YMC2 than a YK , with...

mailed it Chillmac

check your mail Lucas

I could email you the document but your email is not in your profile

Upload a history log for us to look at ?

This may help a little

814874

Regards

How frequently is the problem happening? Do it occur at the same time every day ? Is there a trend to it? Can you run the chiller in Local Mode with the BMS dis-connected ? Then see if it trips, you...

It could be the coalescers in the Oil sump/separator, you should check at any place you can along the compressor discharge , separator inlet, separator outlet, condenser inlet, if there are any...

I just checked a log i had from a few years ago of one running full load , size of chiller is not really relevant but here is the log814593

Well it looks like a remote interlock is stopping the chiller then re-starting it, what remote interlocks have you got wired in ?

I would expect the discharge and oil pressure to be pretty close, within 1-2 psig of each other but your condenser pressure is way down, you have some sort of restriction in gas feed to the condenser...

Pump wiring Star or Delta on both pumps ?


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So do you have soft stop enabled ?


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Moideen, what are the run hours on your compressors ? 10 years doesn't seem too bad but what parts and why were they overhauled ?

I use a combination of Fluke 289's, Fluke 435 II, Fluke 190-204 4 channel scopes and an 8 channel Picoscope, it covers everything i can think of on both input and output side and can be used safely...

Why do people still have millennium panels ? I hope all working ok now


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Is the Optiview configured for SSS type starter , are comms established between Optiview and SSS trigger board ? Is overload setting correct in Optiview motor display ? Do you see any data in SSS on...

It could be your economizer solenoid valve is stuck open or energised , it should become active above 120 he and shut off below 90 hz . You should also see about 6-10 F subcoolling at condenser...

Does it have a VSD or is it SSS or remote starter and does it have an Optiview panel?
Are both chilled and condenser water flows stable and is condenser/evaporator water inlet temps stable ? ...