Need help and advise on 30HXC carrier

[ironmen]

Hi all chiller expert.My company just got a couple of watercool carrier 30hxc to maintain.I realy need someone that can guide me and advise how to maintain it properly.ive got so many question about that system to ask.thanks all

[james10]

http://www.commercial.carrier.com/commercial/hvac/technical_literature/1,3063,CLI1_CNT2_DIV12_ETI11089_MID5433_QRYY,00.html
or www.eto.carrier.com (http://www.eto.carrier.com)

[ironmen]

Hi James10 thanks very good info.Just a quick one have you ever replaced the internal filter and oil in that system before.If you did can you just run with me exatly how did you do it.thanks

[james10]

first of all i need to know what phase it is the phase 1 does not have internal check valves so the refrigerant has to be recovered
hsio control phase 1
prodialog(black) control phase 2
prodialog plus (grey) phase 3
first you need to close the oil return line to the compressor (just below the oil pump
then attach your gauges to the oil pressure scrader (next to the oil solenoid on the top of comp)
recover oil pressure (a vacced out bottle should be fine we are only talking a few grams of gas n oil)
once pressure is zero
you'll find a 19mm allen screw on the side of the compressor remove this plate and inside is the oil filter pull it out using needle nose pliers be carefull there a bit delicate
insert new filter and replace plate vac out the oil line then open the oil line and leak test if it is a phase one instead of recovering oil line you need to remove all the refrigerant then carry out as above

[ironmen]

is there a place where i can drain the oil if neccessary.

[james10]

you only need to releive the oil pressure from the oil line and compressor from the schrader port next to the oil solenoid on top of the compressor if for some reason you need to remove all the oil you drain from the bottom of the condensor as this acts as an oil sep

[ironmen]

thanks.i will let you u khow how i go with it.

[james10]

add to rep power please click on the scales icon:D