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View Full Version : 30hxc chiller not operating corectly.



ironmen
02-06-2011, 10:42 PM
Hi chillers guys out there,got a service call yesterday on a 30hxc unit and the complaint was the building was to cold.at the moment its winter here and the unit was not heating.when i got into the plant room i saw the system runing on one stage only and its just cycling evry two minutes.my condenser inlet was 19 dc and outlet 20dc.evaporator side was 4dc inlet and outlet.when i check on the BMS there was a couple of very low temperature alarm displaying.but on the prologic control on the chiller there was no fault at all.as if evrything is normal.but ive open the logic control and i heard a nonstop ticking noise that was'nt there before.I havent really get into it to check whats going on.one more thing ive got a full 100% terminal load for heating.any suggestion guys will be much appriciated.

install monkey
02-06-2011, 10:48 PM
got wiring diagram and pro dialog manual-whats ur e mail as its a big file

ironmen
05-06-2011, 01:23 AM
Hi ironmen1905@hotmail.com
Thanks.

goshen
05-06-2011, 05:40 AM
Hi
it would appear that the unit transfered to cooling mode??
was the unit turned on ?
we had a prodialog sys go haywire on us ,turning on-off helped for a few days ,then had to replace the main controller!
good luck