Results 1 to 11 of 11
Thread: Ice balls in evaps
-
13-11-2005, 08:05 AM #1
Ice balls in evaps
Friga Bohn SKB 19 four Evap fans low temp application. Hi can any one shed some light on a fault I have, just in the process of changing a Evap in a low temp cold store due to ice balls in the coil, if you were to see the coil its like some one has been at it with a machine gun, ice balls have formed in the coil growing up to about 10cm to 15cm bending coil pipes and heaters, but no ice any were else, all defrost heaters were, working, set at –25C two coils in a store, the only difference with this coil and the one in the same room is the restricted air flow to the coil, if you were to imagine the room, the left side with the damaged coil is floor to ceiling with stock 7 meters high with a 1 meter air gap at the top, and a 2 meter zone around the coil, I suspect this is problem
-
13-11-2005, 01:25 PM #2
Re: Ice balls in evaps
Any possibility to take some photo's?
It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.
-
13-11-2005, 03:56 PM #3
Re: Ice balls in evaps
had some but deleted them, the ice is rock hard not like the normal ice build up on a coil i have never seen any thing like it before
-
13-11-2005, 08:56 PM #4
Re: Ice balls in evaps
possibly defrost termination temp set too high, water in condensing into droplets, when refrigeration resumes they grow??? its a wild guess!. Is your drip time long enough?
what temp do your fans start up at after defrost? usually should be below -3C
-
14-11-2005, 08:45 AM #5
Re: Ice balls in evaps
Seems to be a " point" where the water is collecting......... on the coil.
Probably the copper bent or not round.......damming the condensate as it falls.
Then it builds up gradually into a ballAny opinions, statements and facts expressed in this message do not constitute legal advice in any shape or form and is given for a general outlook in nature. You are advised to seek appropriate and specific professional assistance from a regulated and authorised advisor for definitive advice.
-
14-11-2005, 09:28 AM #6
Re: Ice balls in evaps
the coil terminates at + 10 the unit is controlled by danfoss adapta cool akv 11. the fins are perfect can not see how any water can collect in there, the problem started 18 mth's ago at the bottom but we managed to by pass that section on the coil, now it's moved up the coil hence the replacement ????
-
14-11-2005, 01:54 PM #7
Re: Ice balls in evaps
the only difference with this coil and the one in the same room is the restricted air flow
In freezing coils you sould not have a space, smaller then 6 mm.
It might be too late but you should see into the center of the ice ball.
Chemi
-
14-11-2005, 04:05 PM #8
Re: Ice balls in evaps
CR.bmpWhy would it only effect one coil, four in total same conditions apart from air flow, I think it must be something to do with the air flow,two chambers with two coils in each the drawing is off sacks of frozen clam shells
Last edited by jan behnke; 14-11-2005 at 04:07 PM.
-
14-11-2005, 07:51 PM #9
Re: Ice balls in evaps
same conditions apart from air flow
Chemi
-
14-11-2005, 08:16 PM #10
Re: Ice balls in evaps
Some times if you are to close to a problem you can not see it, I would like to find out how the ice is formed, my be it is forming on dirt and growing like a pearl
-
14-11-2005, 08:38 PM #11
Re: Ice balls in evaps
If you can get a picture of this, it would be really helpfull.
To be able to receive help, you must first help yourselfIF AT FIRST YOU DON`T SUCCEED.
DESTROY ALL EVIDENCE THAT YOU TRIED!
and go get a cuppa
Similar Threads
-
have you got the ball's
By headgasket in forum Chit Chat & Service StoriesReplies: 11Last Post: 08-07-2006, 02:33 PM -
multiple evaps in a supermarket line-up
By kengineering in forum Supermarket RefrigerationReplies: 4Last Post: 11-02-2006, 05:23 AM -
Spectrum evaps ex-valve settings
By nova in forum TransportReplies: 6Last Post: 22-06-2004, 04:01 PM -
multiple evaps
By angryk in forum FundamentalsReplies: 5Last Post: 28-12-2003, 09:49 PM -
Recirculations ammonia evaps
By Friobernal in forum FundamentalsReplies: 5Last Post: 03-04-2003, 10:50 PM