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I am doing ok Dallas even better now i have seen your latest batch of cheerleaders off to have a lie down to recover lol.

Merci pour l'affirmation sur ce refroidisseur français a fait, Gibbo.
The controls on your chillers are somewhat different from ours but I kinda like the control panel.
How are things going in your part of the world???

As Dallas Duster has said your suction pressure (SST) is below freeze point and circuit will be held off on Mode 13.
To verify this press menu button until the light stops at the information icon top left then press the down arrow on the right until item 1 appears in left display now you will see active mode on the right.
Do you have the controls manual there is a list of active modes in there.
Guys this is a French made Carrier chiller, the Pro Dialog Plus controller is mainly for Europe, Africa and the Far East markets, some of the 60HZ units have ended up on drill ships and oil rigs. Freshwater seem to have quite a few of them.

Nice to see your alive and kicking Dallas.

Sorry for the double post. Server keeps kicking out says it can't post so I retyped and resent then TADA it magically sends the original too. Haha.

Log it. Go through pressure, temps etc and write it all down and look at it. If not sure what data should look like shut B down let it sit 30 min or so and log it then compare.

Log it. Go through temps and pressures etc. write everything down and then look at it. If your not sure what the data should look like shut B down let it sit for 30 min or so then log it and compare. If you have no alarms I would suspect, as others have pointed out, it's not being told to run.

Originally Posted by Offshorefool

I get an alarm on everything else, if I disconnect any other sensor it will give me an alarm.

Well duh.

I get an alarm on everything else, if I disconnect any other sensor it will give me an alarm.

Sure it would if the compressor comes on and try's to run but probably not since the compressor will not start . Like I said most likely there is a mode 13 .

So in other words alarms not mode yes.

Will there be an alarm if the unit is low on charge and not starting because of this?

Originally Posted by Offshorefool

Thats correct, circuit A not running. My fluid setpoint is 4.7 deg C

My theory is that your SST is below the brine freeze point and either your circuit A is low in charge or the transducer is reading incorrectly. You may need to get someone to check it out.

Also you may have a mode 13 showing.

Thats correct, circuit A not running. My fluid setpoint is 4.7 deg C

Originally Posted by Offshorefool

Dallas Duster, Under active modes in the i menu there is nothing at the 1st parameter, it only starts from the 2nd parameter.
The pressure for A is High = 317 and Low is 165
The oil level input is high and the oil diff press is 13 kpa for comp A and 20 kpa for B
In my manual I do not have the paramer legend for the service menu, I copied the parameters on a paper and compared them with another chiller that is in good running condition and it is the same.

What is your fluid set point?

And those pressures are on cir A not running right?

What is your brine freeze point?

Dallas Duster, Under active modes in the i menu there is nothing at the 1st parameter, it only starts from the 2nd parameter.
The pressure for A is High = 317 and Low is 165
The oil level input is high and the oil diff press is 13 kpa for comp A and 20 kpa for B
In my manual I do not have the paramer legend for the service menu, I copied the parameters on a paper and compared them with another chiller that is in good running condition and it is the same.

The model number is 30HXC140-A0427-PEE with Pro Dialog Plus Software version 5.3

Originally Posted by Offshorefool

I have been through the manual now a couple of times but I cannot find anything that will disable or enable one of the compressors at a time. If someone can direct me to this parameter I will appreciate it.

Ccs posted this earlier
If this is a Comfortlink panel,,, look in configuration and go to service menu. In that menu look for Compressor A1 enable. Is that compressor enabled or disabled. If your not getting alarms or alerts and the compressor is enabled. Get out the service manual and start at the beginning in configs and check all settings. I agree with Dallas Duster, it appears most likely the compressor is disabled. It would help if we knew what version we are dealing with. Provide the full model number.

Here is ur answer

What modes are displayed under the i menu?

What is the control point?

What are pressures and temps of circuit A according to the PD plus?

What is the circuit load sequence?

Plus a log of circuit B may help converted to US.

What is the position of the oil level input ,high or low?

I have been through the manual now a couple of times but I cannot find anything that will disable or enable one of the compressors at a time. If someone can direct me to this parameter I will appreciate it.

The full model is 30HXC140-A0427-PEE with Pro Dialog Plus

Originally Posted by rscamaro

If that was a problem it would have alarmed a pre oil or low oil flow. Sounds like a compressor is disabled to me as you said earlier.

...Ron

Exactly why I was wanting to know what the oil pressure is.

I would also want to know what the discharge gas thermistor is reading for the effected compressor..