Traulsen Prep Table (self contained unit).... 3 days old... call from Traulsen Warranty to check on unit. found unit running with hot suction line and extremely hot discharge temp. installed line...
Type: Posts; User: jamesgriffin
Traulsen Prep Table (self contained unit).... 3 days old... call from Traulsen Warranty to check on unit. found unit running with hot suction line and extremely hot discharge temp. installed line...
question? is unit a hot gas defrost, or time off defrost... if your defrost is accomplished by comp off time I would do the following?
to wire this i would take your power (line) and go to one...
Have you thought about installing a pump down control? install a low pressure control wired in series to the compressor motor. then install a liquid line solenoid wired in series with the...
I just started work with a new company. Where I was before I primarily worked on ice machine's and resturaunt self contained equipment. Now the company i work for's primary account is alot of big...
Are you in some way suggesting I am a bad tech? I admit that I don't know everything there is to know about refrigeration... I do have an associates in HVAC from a junior college.. and about 5...
r414b 30 on suction pressure
200 on high side
what was your super heat and sub cooling?
it sounds like to me unit is grossly overcharged but need SH and SC measurements to be sure......
filled out refrigeration analysis chart and then it checked out for bad compressor. put new pump on and charged up today... she is making ice like crazy.. I was 95 percent sure comp was toast...
Manitowoc model Qyo455a
charged with 404a
keeps going out on freeze timer. pressures showed 67 psi or (roughly 28 degree) saturated evap temp... and 276 head pressure (120 degrees) ambient temps...
does the unit have reciever?
maybe the condenser unit was undersized for the ambient temps...
why not sell a bigger air cooled unit sized for appropiate conditions...
or you could do water? ...
I was taught to use the condenser over ambient formula..
your condensing coil temp should be no more than 30 degrees above your ambient temp... if you have a ambient temp 0f 80 degrees your coil...
There was a comp change out 9 months ago... and now you are running high head on the new pump... check the acid level of your oil... I wonder if the old comp burnt out and the system was not cleaned...
134a is on the schedule to be phased out by the almighty EPA...
I prefer 134a for med temps... for low temps.... 404... works ok
I never really had any problems with 502 either...
I just don't...
I understand that all blends have some degree of miscibility problems... My question is how does companies get away with marketing hot shot as a drop in replacement for r-12 in med and low temps......
I am having some issues with hot Shot... I have found 5 different racks that have had oil return issues. Anything with a line set longer than 10 feet ... do not use hot shot for med temps... I have...
They went for a new machine... my cost was LESS and then sold it to them A LITTLE MORE... plus a maintenance contract of 1000 a year for the next 3 years ... every 3 months I will come out and...
Your SC does seem a little low... it should be around 10-15. I believe you have a restriction... somewhere .... check the liquid line for kinks... also check the temp of your liquid line on both...
Your pressures for 22..
30 low = 8 degrees evap
250 high = Roughly 118 condenser
40 degree suction line = 32 degrees superheat
you should be running about a 20 degree coil so your
numbers...
Hot shot is a pretty bad refrigerant... but so are all the r-12 replacements...
it does seem that way? .............
in order to replace an evaporator you have got to pull the whole auger/ and motor, there is also 4 set screws on the top and bottom of the tube and you have to reach around inside about 6 inches of...
If everyone owned a mantitowoc we would probally be just about out of business. Mantitowocs will run and run and run... they are like the energizer bunny... provided of course they are routinely...
I just encountered a hoshizaki from hell...
The thing had not been cleaned in about never...
There was a water leak inside the evaporator... this was a model DCM 450 Bae
witht he chipped ice...
I did not intend to imply you didn't have brain... and you are right you should always consult with the decision maker... it would of been one thing if the Security Guard had called me directly .......
I once got called at 3:30 in the morning on an ice machine that had been unplugged. The Security Guard for the building was doing his midnight rounds through the kitchen and noticed very studiously...
Not to get too far off the subject but what do most of you think about Global Warming? Is is a bunch of hype? How much more can/ will the hype effect our industry? It has already gotten rid of...
[QUOTE=Andy Schoen;1421110]Subcooling measurements on a fixed orifice/cap tube system are for a tech's amusement. I'll assume jamesgriffen’s comment relates to the fact that a charging chart for...
The best place to take a sub cooling reading is on the liquid line right before you enter your metering device (txv, fixed orifice, cap tube etc). it doesn't really matter if a reciever is present...
It is not even lawfull to remove the refrigerant from a unit unless you are
1 epa certified
2 you should not do this with a license by yourself until you have much more experience under your...
I hate blends.... what exactly is a near azeotropic blend...
it either is or it isn't in my book.... if the liquids condense at seperate temps then you have a zeotropic blend ... that must be...
checked water pressure... 40 psi
checked size of line ot condenser 1/2
broke dieelectric union on water condenser circuit and backed flushed with nitro
tons of junk came out of condenser water...
I am currently working on a manitowoc 1700 ice machine. it is a 502 system with a water cooled condenser. The problem I am having is a ton of water hammer noise. Checked voltage on sensor board...
They can usually find anything you need... at a reasonable price.. but they are based in kentucky so then you need to pay for shipping... but a smart person would simply redirect that cost to the...
most of the time I charge with superheat and then PT chart... if your superheat is right and your pressure is good you should be alright... in warranty work I usually will just take sub cooling to...
True is better than Traulsen but I think Delfield is best....
my service calls 80% Trauslen, 15% True and then other odd ball brands and occassionally a del field make up the rest..
Never had...
I prefer johnstone supply to RSD and Thermal Supply with almost everything. RSD prices are a little high and maybe they have new guys at thermal but they are not so helpful in my opininon. at any...
I also thought an AB oil would be better for R414b but I called ICOR the manufacturer of (Hotshot) and there technician on the phone stated the only approved oil to use for R414b is an SUS 150...
The most important took a refer guy can own is a good superheat thermometer.
when in doubt check your superheat.........
Professional contractors can get parts for a Trane ...if you happen to be a Trane Dealer yourself...
I have been working on a Traulsen unit that is out of control... 10 months ago the owners had someone replace a grounded compressor in a unit that up to that point had been a functioning system still...
go with a trane.... forced air furnace....