All are full, 100 %.
Type: Posts; User: barrkeys
All are full, 100 %.
No doors open cases, all fans are running.
sorry for the confusion.
Forget the 300 , gages are reading 25 psig and 225, all sight glasses are full 100 %.
Ambient is 85* in Florida, SH is over 30 with new TXV if i open or close it it...
Hey All,
I have three Hill Phoenix cases # O5DM12 (x2) and # O5DM8 (x1) with copeland discuss # 2DL3R78KE-TFC-800, 100ft of 1-3/8 and 5/8 lines, condensor on roof, R22.
Original call was for...
Hey Fellows,
What is a sure fire way to trouble shoot a bad regulator on a rack with four 3D comps, and with oil reservior.
Thanks
Good on you fellows!
That was it, found center reed busted, demand cooling cools comp:cheers:
Thanks
Will do Guy's, right now I have to address moisture issues on another rack.
Never a dull moment!
Did the swap out Phase, no change, I'm leaning towards a comp change out on this one ?
Thanks JP,
What I was trying to say is that the module is responding like it should, and if the amps are ok and the comp pulls a vacuum then there is no blow by, right ?
For some reason the...
Bin out of town Phase,
Will check today.
Thanks Dirty Boy,
Is the exhaust fan the only way to controll positive / negative pressure ?
Besides motor room doors open what else affects the building ?
Thanks Phase,
If I close suction valve comp will pull vac, solenoid will energize @2100 ohms problem is it never cools down to 2400 ohms ohms just keep geting lower, there is liquid injection to the...
Hey JP,
My discharge temp @ the discharge valve is 240*, motor room temp is 110*.
Its the middle comp JP should get more than the last one, the resistance at the probe is calling for the solenoid to open but it doesn't change once the liquid starts to flow.
The model number is...
Hey Guy's,
I have a comp. on a rack in the # 2 out 0f 4 position that is the only one going off on demand cooling, its a low temp rack, R22, pressures are ok, the motor room is hot (105*), exhaust...
Hey Guys,
Anyone know what the settings for a Danfoss ADAP KOOL, # AK-SC255 should be, have approx. 75% humidity in store.
And besides AC what other options are available for controlling...
Thanks Guys,
Doing oil, and oil filter change today, and will change drier cores accordingly.
Comp.is valved off.
Suspect non condesibles beause of condition of cores.
How can I have such a low discharge pressure and high drop leg temp ?
JP,
Comp. has bin down for a while, blows fuses.
Went on roof air coming out of fans is not warm.
What affect would rotaion have on a three phase pump ?
Is there a way to clean out...
Hey Guys,
I have a Hill rack Mod. AT4H4500RCM1, with some three comps, 4DK3R16METSK800,only two are working, i have to change the liquid line drier cores every 3 to 4 monts, they are totaly plugged....
Thanks JP,
The controller is a Danfoss, searched history and found rack going very low on refrigerant at a certain time, defrost schedule for that system was about one hour, had to enter defrost...
If you can manage to hold it to the valve, make yourself a jig about half inch thick, with pilot hole diameter for easy out, with the bolt hole center, if you make a U shape you can do all four holes.
Hey Guy's
I have two of four 3D comps going off on demand cooling ( always the same two ), they are on a Hussmann rack, outdoor motor room, exhaust fan is always going but its freaking hot in...
Sorry for the long delay fellow's, had my hands full with compund rack at other store.
I isolated the evap and blew it out with nitro, before all four tubes going to distributor where not...
Beuller here,
Diff. pressure is about 20psig, termination is thermal disc at the evap. defrost time is 20 min. with 5 min. of drip. As mentioned before there are two other cases on this system,...
It's a parallel system, epr sealing ok, full sight glass, dist. has built in side port. I isolated evap, distributor is clear, going to blow nitro through evap.
Gentlemen,
I have a Tyler, Mod. # D5FGL12GD, hot gas defrost case, there are three cases in the system one is not defrosting. The gas enters and will defrost the front of the coil, but the back...
initially I replaced one of the comp. in circuit #4, pulled vacuum and could not fully charge due to high head pressure, sight glass is flashing in that circuit also.
Just took head off JP, back piston is dropped, cylinder full of oil. Forgot to mention very slight vibration, sorry.
Hey Guy's
I have a 4RA3-100A-tsk-800, pulling 24 amps, (54.8 RLA's) the voltage is 197 vac, 25/280 psig, it will pull a vacuum, amps do not go up when discharge is closed, it's on a Hill rack with...
Hey Guy's,
Have stand up door cases with heavy frost on the ice cream product itself, and frozen dropplets on top, is it just condensation ?
Thanks
forgot to mention that fans are shooting the air straight up, the mist from the pressure washer was going straight up.
No PD,
Problem still exists, used about two gallons of rust scale remover, hit coils on both sides with pressure washer, they look nice and clean, but still have high head pressure, two out of...
Coils look like they have seen beter days, already hit them with hose, going to get my hands on a power washer, fan blades look properly positioned.
Motor's are correct horse power and rpm's, and fan blade's have the proper pitch and number of blades. What should the condensor exhaust air temp be ?, there just doesnt appear to be enough heat...
Team,
Have seasons 4 with 4 circuits, two of them I cant get full sight glass, because head pressure is around 315 psig. All six condensor fans are running, store temp is around 75*, air supply...
The oil in the vacuum pump ( 6 cfm) gets milky after 30 minutes, used micron gage today, it read's around 5000.
The call came in at 3 am, and if I have a dog, I would have kicked him! LOL!
The rest of the systems on the rack are not showing any problems yet, it's bin 24 hours. system in question is only...
Check the box, make sure that it wasnt bumped with an electric pallet jack giving you a gap in the insulation wall. If you can bump it back and if you cant bump it back from the outside, or repair it...
Hey Team,
Construction crew cut 7/8" liquid line, emptying Rack. Have water in TXV, evaporators, and lines. System consist's of three beer cases, ouch! warm beer. System is Isolated, I was not...
Final verdict,
I think, and please correct me if you disagree, was acombination of alot of things,
- Store is less humid now,AC'sworking.
- closed some of the big gaps in door.
- adjusted SH...
Checked frz today,
Box temp at -14*, SH between 4-6, and removed mister in front of cond. a couple of days ago so far holding at 255psi, liquid line temp at 104*. There is still a gap in the door...
Thanks dawg,
Not only does it have a heat exchanger but the liquid line is insulated with the suction line and still the liquid line was warm to the touch inside the box, that is before I put a...
Hey beachdawg,
There line tap's at the evap. shouldnt I get some kind of pressure drop or rise in the suction line ?
The good news is that the box temp is at -5*, and ice cream is a little...
Thanks DCHAPPA21
Could not find any info on the evaporator, it's a Larkin with three fans.
Just found out that according to sporlan ZP's are not intended as replacement for Z charges.
That's...
No sweating for filter, 5/8 flare at the reciever.
Thanks James,
It's a KT-43-SZP power head, for 404, 502, 402, and 507.
6psi and 62* at the comp.
Compressor SH should be between 20 and 40 right ?
Thanks guys,
Store is warm, A/C has one condensor down, would probably help my situation with air intrusion if I got the humidity in the store down ?
Jpsmith,
Before I left today I had, at the comp., 6psi, and temp of the suction line, at the service valve was 62*.