ucp2

[york56]

attached is the closest i could get to swahili

You are quite the individual multi functional real men of genius we salute you mister swahili interperter.

[Healey Nut]

this chiller does not have 'softload'...at least not like it is applied to the other screw chiller products.

Jay is correct , but what I was referring to was you could send it a variable current limit signal over a set time period and do the same thing .

I still would like to know how adding extra Ct's will solve his low evap temp issue though ???

[jayguy]

...what I was referring to was you could send it a variable current limit signal over a set time period and do the same thing...

or a variable chilled water setpoint.

...I still would like to know how adding extra Ct's will solve his low evap temp issue though ???

it is a swahili thing...you wouldn't understand.

[Phisher]

Is a VFD installed on the chill water pump?

[emcontrols]

If im not mistaken the RTAA UCP2 has phase unbalance & phase reversal already, Just need to confirm its enabled under setup menu.

Ya'll are right its standard ambient unless low ambient option has been added.

What is your chw setpoint, what is the ambient condition its tripping????????

[Healey Nut]

it is a swahili thing...you wouldn't understand.


No ...i think I'm getting this Swahili thing now ........

So my refrigerant charge is contaminated ,,,,,,,,,,,,, so if I change the M1 circuit #2 contactor auxillary interlock it will fix it right ?????

[Phisher]

Anyone open a control panel just to find a rats nest of wires and wonder how that could happen?

graham, It's too cold in Canada for that Healey. I think it would be happier if it were parked farther south. I know a perfect garage in Va.

[milkyway]

[QUOTE=
I still would like to know how adding extra Ct's will solve his low evap temp issue though ???[/QUOTE]


it wont., every body know this , just as my 7 year old., haha
thanks graham

[jayguy]

...so if I change the M1 circuit #2 contactor auxillary interlock it will fix it right ?????

NO! NO! NO!

that is how the russian ones are fixed....geez....isn't anyone listening?

see the attached document for that repair.

[milkyway]

here it is guyz

[mryan1]

Is a VFD installed on the chill water pump?

as long as the pump is the right size no need for a vfd on the loop

[milkyway]

got it., i know that there is 2 types of ct's., reg ct's and under and over voltage., .,.,

1 MOTOR OVERLOAD

2 CONTACTOR DROP OUT OR NOT WELDED SHUT

3 LOSS OF PHASE

4 ROTATION

5 UNBALANCE

WHERE AS THE under over transformer

IS JUST THAT.,.,

HAS NOTHING to do with the low ambient.,.,

[emcontrols]

got it., i know that there is 2 types of ct's., reg ct's and under and over voltage., .,.,

1 MOTOR OVERLOAD

2 CONTACTOR DROP OUT OR NOT WELDED SHUT

3 LOSS OF PHASE

4 ROTATION

5 UNBALANCE

WHERE AS THE under over transformer

IS JUST THAT.,.,

HAS NOTHING to do with the low ambient.,.,

You mentioned low evap alarm and other problems due to low ambient conditions. Do you really have isues or was this just a jab session??