hussmann case NIGHTMARE

[gatorfan9606]

HAS ANY ONE HAD ISSUES WITH THE HUSSMANN CASE LOW TEMP CASE
HAVING MAJOR ICE BUILD-UP AROUND THE FAN'S DOWN THE PAN THE DRAIN IS CLEAR ON ALL 6 CASES THE HUMIDITY AROUND THESE CASES IS 51% THE TEMP IS 73 DEGREES ITS GOT THOSE DANFOSS TEV THEY SEEM TO BE WORKING OK THE MODEL NUMBER OF THE CASE IS THE RLT FAMILY
DEFROST IS ELECTRIC 2 TIMES A DAY FOR 45MINS 5 DRIP R404A SUCTION SET POINT IS 7.5 PSI MY MAIN PROBLEM IS THE ICE-UP AROUND THE FANS DEFROST IS AMPING AT 14.8 EACH CASE PIPED TO A HILL RACK 1YR OLD THX T

[jpsmith1cm]

Have you tried running them warmer?

What needs to be that cold? -35 degrees SST?

[gatorfan9606]

Have you tried running them warmer?

What needs to be that cold? -35 degrees SST?

my mistake 15 psi is my sst its a suction loop with steppers in this store its holds i/c and f/f pies

[jpsmith1cm]

Then, sorry, I got nothing.

You could always run a heater wire around the fan baskets, but that still doesn't solve the root cause.

[primmers]

one of my customers has the same problem, i was told by a hussman tech that was up here working at the large grocery store that the case is bad..water gets under the sheet metal floor and when it freezes it buckles the floor up causing the drain water not to get to the drain..he told me to make the defrost time 90 minutes. since that time, weve had no problems with ice..

[gatorfan9606]

one of my customers has the same problem, i was told by a hussman tech that was up here working at the large grocery store that the case is bad..water gets under the sheet metal floor and when it freezes it buckles the floor up causing the drain water not to get to the drain..he told me to make the defrost time 90 minutes. since that time, weve had no problems with ice..

yes this is the problem am having exactly what you describe the water is sits behind the the sheet metal do you remember what was in the cases was it ice cream cause 90mins is a long time

[primmers]

yes this is the problem am having exactly what you describe the water is sits behind the the sheet metal do you remember what was in the cases was it ice cream cause 90mins is a long time

this case is a frozen food.
he told me that once he had to replace that sheet metal floor, came in and tipped the case on its back and did the job from under neath..

[gatorfan9606]

this case is a frozen food.
he told me that once he had to replace that sheet metal floor, came in and tipped the case on its back and did the job from under neath..

well how odd was this case cause my case is under 1yr old if i got to remove the base of a case at only 1yr old am going to want new cases i may have to involve hussmann and the store in this IF thats the case

[cold spell]

I had a similar problem with a RL. In this case I found the drain line P traps installed backwards. They are directional with the high side on the outlet side. Had to order all new traps from hussman.

[sumdumguy]

well how odd was this case cause my case is under 1yr old if i got to remove the base of a case at only 1yr old am going to want new cases i may have to involve hussmann and the store in this IF thats the case

just a shot but is the case staggered for defrost and if so is it sealed and barricaded from the next defrost on the line up. Plexiglas maybe, so the humidity from the defrosted doesn't become ice on the refrigerated...

[gatorfan9606]

just a shot but is the case staggered for defrost and if so is it sealed and barricaded from the next defrost on the line up. Plexiglas maybe, so the humidity from the defrosted doesn't become ice on the refrigerated...

no the cases are not stagger got 14 doors per alsle and its one circuit

[Dowadudda]

please please do not tell me this is a tarjay?

[sumdumguy]

please please do not tell me this is a tarjay?

What's a tarjây Dowa?

[jpsmith1cm]

French for T a r g e t

[Joe Harper]

Do you remember "rudolph the red nose reindeer" and the island that they had for the misfit toys??
Just think of Hussman as santa, and Target as the island.

[gatorfan9606]

please please do not tell me this is a tarjay?

no its not tarjay lol

[sumdumguy]

Do you remember "rudolph the red nose reindeer" and the island that they had for the misfit toys??
Just think of Hussman as santa, and Target as the island.

to funny...

[K_Neil]

With the cases being that new maybe they're not level. Got a set of cases that 1 of 3 8' sections has water left after a defrost and there is frosting problems of all kinds on restart. Have to shim up the case aprox. 3/4" inch.

[gatorfan9606]

With the cases being that new maybe they're not level. Got a set of cases that 1 of 3 8' sections has water left after a defrost and there is frosting problems of all kinds on restart. Have to shim up the case aprox. 3/4" inch.

we did that already we were very close to perfect i covered all corners before contacting hussmann. about this.. last week i talked to someone and they aint even sending a rep out they said oh yeah we got a kit to fix the problem so i take it they're aware of this problem we shall see they did recommend a 60min defrost lol i will have soupy icecream by 45mins

[MikeySq]

I had 2 RLT-4's on a loop with steppers running electric defrost, same sort of problem, coils iced up with clear drains but the ice started where there was piping running through the case and I guess when in defrost water dripped from coil it went to the bottom of tjhe case and froze a barrier in the drain pan where the piping was laying. It would build up to the coil on the back of the case, stopping the fans.

I placed some rubber bungs from copper tubing(seals) and that rost the piping over 1/4" over the pan and water flowed under the pan.
Mike

[dirtyboy103us]

i'll assume these are glass door if thats the case only one defrost is needed at night when store is closed no more picking up humidity during the day when loading or customers opening doors and you could give it 2 hours of defrost but it should be terminating on temp "always" for producy integrity
you want to clear the ice and not bring the fan shrould above due point to collect ice