Cold room advice wanted.

E

einstein

Member

Location

Rutland

• Jun 26, 2022

• #1

I built a small cold room earlier this year..2mx2x2..
The local refrigeration folk supplied the compressor.,which is on the outside of the shed and the chiller and fan unit on the inside.
The compressor kicks in and out according to the the temp required..but the fan on the inside runs continuously...using about 100w
Is this right...seems a bit of a waste of leccy to me
The guys who fitted it don't seem that clued up about it!!
Any advice appreciated.
It's for storing strawbs...mostly around 8c for short term storage

 

davidroberts30

Member

Location

pembrokeshire

• Jun 26, 2022

• #2

einstein said:

I built a small cold room earlier this year..2mx2x2..
The local refrigeration folk supplied the compressor.,which is on the outside of the shed and the chiller and fan unit on the inside.
The compressor kicks in and out according to the the temp required..but the fan on the inside runs continuously...using about 100w
Is this right...seems a bit of a waste of leccy to me
The guys who fitted it don't seem that clued up about it!!
Any advice appreciated.
It's for storing strawbs...mostly around 8c for short term storage

Click to expand...

Wouldn't that be switched on and off with compressor

 

Kidds

Member

Horticulture

Location

Near Beeston Castle

• Jun 26, 2022

• #3

100W is about 70 pence per day.
It makes sure the whole room is the same temp and if you put warm strawberries in there it makes sure they get chilled quick.
I'd pay the money and be happy.
Internal fans don't go on and off with the compressor because they are doing a different job.

 

E

einstein

Member

Location

Rutland

• Jun 27, 2022

• #4

Kidd's..thanks,I know it won't break the bank but during my delivery rounds I walk into a few fridges and not all have the fan running continuosly.
I just wonder if I'd bought a ready made cold store how it would have been set up.

 

E

einstein

Member

Location

Rutland

• Jun 27, 2022

• #5

Also surely the fan motor generated some heat...which makes the compressor switch on more often than it should.
I have a wireless thermometer inside the store and it does need cooling regularly...even though we used 2 sheets of kingspan all around.

 

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TripleSix

Member

Location

Helmsley, North Yorkshire

• Jun 27, 2022

• #6

I'd expect it to be running all the time unless it's a new type of unit with eco features.

Although I don't see why it couldn't turn on and off with the compressor

 

sjt01

Member

Mixed Farmer

Location

North Norfolk

• Jun 27, 2022

• #7

If the fan is off, the unit will not see the coldroom average temperature, only the temperature at the probe which may not represent the temperature of your refrigerated goods. That is why you need the air circulation.

 

Wood field

Member

Livestock Farmer

Location

South Pennines ol14

• Jun 27, 2022

• #8

From memory, all but in industrial size cold rooms, the fans run all the time except for a timed defrost
The temp probe needs careful siting ie not in front of the fan in an icy blast but not near a door giving warmer readings
I remember EHO inspection and they pointed an infra red thermometer at the fan and tried to tell me the fridges were way to warm … yes the fan motors create heat

 

M

Midnight plough boy

Member

Location

Hertfordshire

• Jun 27, 2022

• #9

The fridges on your rounds may have a fan cut out switch when you open the door to stop blowing all of the cold air out. May be why they seem not to be running all of the time.

 

Courier

Member

Location

M62 - M1 - M18 triangle

• Aug 22, 2023

• #10

Purely incidental to this post I have a couple of surplus coldroom sliding doors with top rails and most fittings - open to offers - could deliver at cost.