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27-09-2011, 10:05 PM #1
Ice bulding up in Evaporator's hangers
Hello!
I'm having troubles on a Freezer room where two big Evaporators (900kg) are mounted on the ceiling with 8 metal hangers (threaded rods), some of this rods are getting ice build up at the inside of the room, (some not all of them). I've insulated the exterior part of the hangers and worked for a short time but again the ice is coming back.
Have you deal with this trouble? Do you know if there are non-metal hangers for a 900kg Evaporator?
Thanks!!
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27-09-2011, 11:06 PM #2
Re: Ice bulding up in Evaporator's hangers
Plastic threaded rods, nuts, washers, etc. are available.
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27-09-2011, 11:11 PM #3
Re: Ice bulding up in Evaporator's hangers
Thanks Gary.
Could you post a manufacturer/dealer website link please? I haven't found long enough rods here in Mexico.
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27-09-2011, 11:15 PM #4
Re: Ice bulding up in Evaporator's hangers
George
Have you water leaking in to some of the rods? Plastic can become brittle at low temps, i'd stick with metal.Maybe check the roof first for poor sealing?
alMostly found in the southern part of this green and pleasant land.
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27-09-2011, 11:20 PM #5
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27-09-2011, 11:22 PM #6
Re: Ice bulding up in Evaporator's hangers
Thanks al.
I didn't see no water on the roof, I already did re-sealing at the rods but the ice is still building up.
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27-09-2011, 11:22 PM #7
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27-09-2011, 11:22 PM #8
Re: Ice bulding up in Evaporator's hangers
http://www.bluemay.co.uk/plastic_fas...eaded_rod.html
technical info states m20 rod rated for 215kg so unless u have 6 rods evenly loaded-u might struggle with the weight-how about a low wattage trace heater tape? usually u bolt the evaps to the ceiling so there is no rod on show
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28-09-2011, 07:30 PM #9
Re: Ice bulding up in Evaporator's hangers
are the evaps opposite each other ? do they go on defrost at seperate times ? if they do one set of rods will be warmed by heat from evaps moisture forms when warm meets cold put them on defrost at same time and check termination temps as they maybe getting to hot on a defrost and being steel they will conduct heat cold either way have a look at RSJ they hanging on see how warm it gets
I can fix broke but I cant fix stupid :)
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29-09-2011, 03:01 PM #10
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01-10-2011, 07:41 PM #11
Re: Ice bulding up in Evaporator's hangers
is the connection between the evaps and the rods isolated whit rubbers or silent blocs?
maybe its capylairy?
ice