Cold rooms help to maintain the temperature inside cool and uniform. A refrigeration function is the backbone of a cold room. If the cold room has even a tiny problem, then it will create a great issue with the environment of a cold room and can be a bad sign for you. Here we are going to discuss cold-room related problems so that one can be aware and maintain the cold room nicely.

By adopting these instructions, you will get the correct knowledge about cold-room related problems and solutions. You will be able to remove all those complications you are facing in your cold room by following these instructions.

Cold Room Problems and Solutions

1. Temperature changes amid storage – this might be due to improper location or harsh and low-quality indoor regulators which makes it difficult to sense the normal room temperature.

  • Solve this by introducing the indoor regulators legitimately or utilize one which is of good quality. Permit even wind current flow by reworking storage compartments. Another way is to do some speedy migration of the evaporator loops or introduce additional fans or air tubes.

2. Warmer or colder temperature in the cold room compared to the favored temperature amid capacity – might be because of low-quality indoor regulators.

In any case, deficient protection in the mid-summer and poor storage room ventilation and insufficient refrigeration causes inside air to be hotter or colder.

Summer season with dark roof surface coupled with uneven wind flow and improper attic ventilation are the main causes of this problem.

  • Practical arrangements include utilizing quality indoor regulator and introducing them appropriately. If the temperature inside is warmer compared to requirement, introduce more refrigeration. Introducing air tubes and also expanding the fan’s ability or having additional fans will also be able to tackle the issue.

  • Thermostat needs to be mounted in rooms with uniform wind flow. They should never be mounted in exterior cold wall, adjacent to doors etc. Thermostats should not be mounted near the evaporator coil as well.

  • Roof should be painted in chalk-white color as it helps to offer enough attic ventilation.

  • Minimum of R-20 needs to be mounted in wall, R-24 in attics and R-12 in foundation.

3. Irregular air temperature inside the cold room – this issue is caused by dearth of storage limit which results in inconsistent air stream.

  • The best answer for this will be to utilize a smoke generator to find dead air spots and analyze conceivable short-circuiting of air. Introducing air tubes, additional fans, and modifying storage compartments are likewise conceivable answers for prevention.

Condensating Walls

1. There will be a formation of condensation in a region that encounters high amounts of relative dampness, low temperatures and poor ventilation on surfaces or walls. Condensating walls, for the most part, happen when the inward surfaces are colder than the room air hitting it.

  • Possible solutions can be sealed cold room so that no warm air spills into it. Protection of surface joining base area might be useful. Vapor retarder can also be implemented in the cold room. Ventilation in a cold room would likewise lessen condensation. There are additionally programmed condensation dissipation frameworks that are accessible which are also effective.

Moldy Walls

1. The primary cause behind why cold rooms regularly bring about significant mold issues is that cold room owners don’t know how to maintain them legitimately—they treat cold rooms simply like normal refrigeration system in their home. This is a mistake as cold rooms require exceptional maintenance and support. Extremely high levels of dampness together with differing surface temperatures can result in mold development.

  • Mold developments are a common issue with cold rooms however you can cure this by ensuring that your storage spaces are clean, dry and sanitized. Molds are prone to redevelopment after some time. By introducing enough proper insulation this problem can be tackled with ease.

Rotting Walls

1. The absence of a vapor barrier or having one that is wrongly introduced can be the cause behind why your cold room walls are spoiling. Dampness saturating the wood cladding is likewise another cause to know about. This is really hard to handle and remove completely.

  • Resolve this issue by utilizing an alternate sort of material for protection. Since utilizing a vapor barrier is not generally trustworthy, discovering approaches to keep dampness from leaking back in would be your best arrangement. Give fast and uniform quick cooling to fix the issue. One can keep up prescribed temperature amid the capacity time frame to get rid of rotting walls. Increment separating rates before capacity; Don’t anticipate that the capacity will transform low quality item into a top quality item.

Dripping ceiling

1. Dripping ceiling is yet another cold room problem. Poor attic protection and ventilation are the main causes for dripping ceiling. Lack of ventilation would result in warm and moist air in room. Deficient attic insulation could result in condensation which drips through the cracks.

  • One of the most effective methods to tackle the issue is to give enough insulation and additionally install a vapor barrier with respect to the drive heading of the vapor weight.

  • Give 1 meter-square of channel zone per 650 meter-square of roof, with same unhindered top zone, or mechanically ventilate @2 air change/4 minutes.

Smelly Storage area

1. Gases like ethylene and carbon dioxide are normally discharged from sweating or rotting items. If these gases are in excess amount can bring about your cold rooms to release awful smell. This can also bring issues with family health.

Cold rooms would need to use an exhaust fan for appropriate ventilation. Something else that you can do is search for a rotting item and throw it immediately so that your cold room don’t release awful smell.

  • To kill stubborn smell issues in a basement, property holders can purchase or lease an ozone generator – a machine that guarantee to dispense odors, for example, tobacco smoke, synthetic scents, mold scents, and similar smells.

  • Search for and discard rotting item; introduce a small ventilation fan that gives ventilation of 1 or 2 air changes/day. Make sure there is no foul smell in your house to keep your family healthy and safe.

High energy consumption

List of reasons behind this issue can be as follows:

  1. Insulation is missing or wet
  2. Higher volume of item being cooled compared to capacity
  3. Product is entering cold rooms hotter than it should be
  4. Fabricating less tight or entryways open all the more regularly
  5. Malfunctioning refrigeration device

All of these can result in utilization of more energy and in turn rises the energy bills.

  • Possible Solutions can be correct dampness handling and re-protecting it with a protection that is more reasonable for cold rooms, installing more refrigeration measures as yield generation rises.

  • However the system ought to be appropriately estimated to lessen costs, get hardware adjusted by a qualified refrigeration contractual worker so as to get maximum output with less cost.

Unsuitable components

1. Another common problem with cold rooms is components that lower their efficiency.

  • To improve the energy efficiency of your cold room, you need to avoid installing components such as LED lighting and under-floor heating in the facility. The temperatures of the adjoining room can also contribute to inefficiency.

Distance

For a commercial kitchen, it is important to ensure that the layout meets the operational needs. The shorter the distance between a cold room and a kitchen, the easier it is to streamline the entire operation and it also helps to save time.

Improper flooring

For a medium or freezer room, it’s important to ensure that the floor is insulated to maintain the needed temperatures.

Insulating the floor helps to increase energy efficiency but it is going to cost more. But if the surrounding environment is hot, the cost of insulating the floor will pay for itself due to reduced running costs.

Insulated floors will mean a change of levels which can be a problem for trolley access. To overcome this challenge, you can have a recessed floor while the refrigeration component and door can be made shorter.

A sweeper gasket can be be fitted on the door to seal in the cold air.

One size does not fit all

Sometimes it is not easy to find the exact specification you’re looking for in a cold room. You might be looking for particular measurements or framework that might not be available in the market.

For instance, you might be looking for a cold room with glass doors or a racking mechanism without success.

However, one can overcome this easily by having a custom-built cold room designed specially for you.

Lack of features

If your cold room doesn’t have the necessary features, it makes it hard to provide optimal temperature management.

Features such as automatic defrost will ensure maintenance-free performance by eliminating the build-up of ice.

An adjustable thermostat is also essential because you can set the most optimum temperature based on the weather conditions and save energy.

Inefficient design

You need to consider the design of the cold room particularly with regards to compartmentalization. When you compartmentalize, you reduce the refrigeration load.

You also avoid mixing different kinds of foods such as meat and vegetables. Different kinds of foods also require different cold storage temperatures.

There are some perishable products that are more susceptible to extreme cold compared to others.

Improper refrigeration system

Choosing the wrong refrigeration system will lead to increased energy bills. If you just need a basic refrigeration unit with fixed temperature zone, a clip-on unit is recommended.

This is characterized by the condenser and evaporator being in the same housing.

For an expansive storage space, it is recommended that you go for a decentralized refrigeration unit in which the condenser and evaporator are linked through pipelines.

Such a cold room is ideal if you’re operating in a large market or warehouse.

Issues in the switch of refrigeration unit

The switch of the refrigeration system can be broken, damaged or in a bad condition. It can affect the flow of electricity or can make a trouble in the working of the refrigeration system.

  • So make sure you have all the switches of your refrigeration system in a good condition. Check them on a regular basis. If you find even 1% damage then provide a service and maintain it, because it can give rise to serious of issues in future.

  • You need to check all the connections from the power source; sometimes connections can be loose or broken. It will create hurdle in the cooling process run by the refrigeration system which can affect the entire system and its flow.

  • Right voltage is needed to run the system impeccably. Be sure about the suitable voltage and it’s optimum levels because less, high and unsuitable voltage can be an issue of a short circuit or damage your entire system. Apply some voltage controller at your cold room to manage all the refrigeration systems and other electrical equipment.

Special instructions: While dealing with the electrical equipment, always switch off the main switches first then check the entire things we discussed above. You can just switch off the main connection and then turn it back. If nothing happens then check the cables if they are properly connected or not. If both of the test mentioned above goes fine, then try to manage the voltage.

Some of the items in the cold room is freezing

There are multiple reasons behind this issue. Some of them are as follows

  1. Dense chilly air from evaporator coils is dripping on the item
  2. Reduced airflow or carton assembling organization which results in chilling and dead air spots
  3. Item touches the chilly walls or is placed near to chilly
  4. Item is placed too high near coils

This issue can be fixed by adopting the following methods

  1. Fine-tune the coils to operate at higher temperature; Baffles can be installed beneath the coils to rebound icy air and enable it to heat up before striking the item.
  2. Make use of smoke generator to perceive dead air spots
  3. Rearrange coils or enhance their fan capacity
  4. Air tubes and additional circulation fans can be installed
  5. Stack the item away from chilly walls

Some of the items in the cold room are shriveling

Main reasons behind this issue are listed as follows

  1. RH (relative humidity) is very low in the cold room
  2. Vessels made of timber and storage structure absorbs moisture from the air and items in stored in the cold room
  3. Items like pome fruit appear wrinkly when it is faintly icy

This issue can be fixed by adopting the following methods

  1. Perform the installation of multiple coils so that they can function at a reduced temperature. This method helps to decrease air dehumidification. Humidification equipment can be installed that can deliver extra-fine or atomized mist. It can be difficult to put water back into shriveled item.

  2. Eliminate field heat more faster and punctually after harvest so that the difference in vapour pressure between the item and air is less vapour. Hence, the chances of dampness to get rid of the item is lower.

  3. Vessels made of timber needs to be dampened before they have to be kept in the storage unit for more time. Experts state that vessels made of timber can raise the weight by up to 10 percentage by taking in moisture. Make sure to dampen plywood walls and floor so that the cold room could get rid of shriveling effect.

Some of the items stored in cold room is sweltering or has traces of water in it

Some of the main causes behind this issue are

  1. Hot, humid air released from freshly stored item is striking colder items
  2. Exterior air is striking colder items after taking it away from storage unit
  3. Melt water released by evaporator coils is dribbling on items
  4. Bigger drops from humidification unit

Some of the solutions to meet this issue are listed as follows

  1. Store colder items (which are stowed for bigger duration) away from hotter items which are yet to be cold. Mount better refrigeration units to bring down rise in temperature levels.

  2. Ensure that the item is warming up slowly. Item is prone to condensation if it is stored directly into a hotter, damp atmosphere.

  3. Condensate can be drained into the flooring which assists in storage humidification. Humidification equipment can be installed to deliver extra-fine mist.

Item exhibits early maturing, discolouring etc.

Some of the main causes behind this issue are

  1. Presence of ethylene gas
  2. Very hot storage temperature

Some of the solutions to meet this issue are listed as follows

  1. Fruits which produce high levels of ethylene needs to be removed from the cold room like apples, plums etc.
  2. Get rid of forklifts which release ethylene
  3. Storage rooms need to be ventilated thoroughly.
  4. Reduce storage temperature

Health and safety

Last but not the least, health and safety is very important and the supplier of the cold room should give guarantee that the facility is safe to use and operate. Make sure your cold room is come with a warranty from your supplier.

If possible, always seek for a professional cold room services team to fix the problems for you, you can save a lot of time and ensure safe environment for your workers.